It depends on the size of the site (the range and height of the transportation), from the size of individual concrete sites (performance) and on the properties of the placed concrete (cement content, consistency, grain size, etc.). Concrete pump, which is obliged to submit a certain amount of concrete during a given time, should have a design that guarantees the fence of this number of concrete and its transportation to the place of installation. The feed pressure is the larger than the longer the transport pipeline and the faster the concrete flows on it. It is easy to understand that the driving power of the pump, which develops the high pressure for the transportation of concrete to a large distance, will be greater than that of the installation that transports concrete only for short distances. Only pumps with the same drive power can be compared with each other.

Sucking

Concrete can be squeezed out of the pump cylinder only if it was previously filled with concrete. This filling is also required pressure. The atmosphere pressure (1 bar \u003d 760 Torr) causes concrete to enter the reservoir under low pressure. The suction piston creates low pressure in the cylinder. The atmospheric pressure "squeezes" concrete from the bunker to the cylinder. The difference in pressures between the atmosphere and vacuum theoretically there can be no more than 1 bar. In the pump, under favorable conditions, it can be 0.8 bar. This means that concrete is served from the bunker to the cylinder as much as possible from 0.8 bar. Therefore, rigid and coarse concrete spaces are sucked worse than thin and plastic. The optimal suction conditions are ensured when the suction holes have the same section with a pump cylinder. The catch (Sewber) must be designed in such a way that the suction section remains as open as open, without preventing the flow of concrete and without changing its direction of movement. Large volumes of concrete require large cylinders and the corresponding sizes of suction holes. The diameters of the suction opening and the cylinder determine the maximum grain size of the transported concrete. The simplest rule requires that the diameter of the suction channel at least 3 times exceeds the diameter of the greatest grain. That is, a concrete with a maximum grain of 63 mm assumes a concrete pump with a feed cylinder diameter of at least 180 mm.

Mixer

Modern concrete pumps are supplied with stirrers installed in bunkers. The mixer is designed to maintain concrete in a fluid state during the downtime of the pump, it prevents the sedimentation of concrete and destroys the structures formed near the suction holes. However, these stirrers are not full-fledged concrete mixers. With the pump disconnected and large times, the preparation of concrete using a mixer seems very problematic.

Digging

The maximum pressure provided by the concrete pump is set by its design. For different operating conditions, a variety of devices have been developed. Concrete pumps typically work with short concretees corresponding to the length of the mast concrete distributor. They need a lower discharge pressure compared, for example, with stationary pumps on construction sites, which the same volume of concrete must be applied to a height of 100 m. For mobile concrete pumps (concrete pumps), as a rule, discharge pressure up to 70 bar is sufficient, including and with high performance. Stationary concrete pumps with concrete flow at a distance of up to 1000 m or height to 500 m require pressure up to 200 bar. Such pressure placed elevated design requirements to all the pressure-based nodes, such as shooters, hoses, gearboxes, pipelines, etc. Uninterrupted functioning of the pump is possible only if all the specific requirements of a particular construction site took into account all the specific requirements. Installation that is constantly overloaded cannot work efficiently.

Model concrete pump	Performance, m 3 / hour	Feed pressure, bar	Feed range up / by horizon, m	Appearance
Piston stationary concrete pumps
	18	70	60/200
	71/47	71/106	100/250
	65/42	56/101	100/250
	95/57	91/152	130/350
Concrete pump stationary Putzmeister BSA 2109 HP D - Rent	95/57	91/152	150/400
Concrete pump stationary Schwing SP 4800 D - Rent	43-81	104-243	150/400
	102/70	150/220	180/400
Concrete pump stationary Schwing SP 8800 D - Rent	63-116	104-243	300/800
Concrete pump stationary Putzmeister 14000 HP D - Rent	102/70	150/220	350/1000
Pneumatic feeding stationary concrete pumps
Concrete pump Putzmeister M 42 - Rent chassis Mersedes.	120	85/95
Concrete pump Schwing SX 52 - Rent chassis Mersedes.	160	85
Busteasos. Cifa K52L XRZ.	150	80

Pumps for liquid solutions are specialized construction and industrial equipment intended for preparation, kneading and subsequent filing of mixtures of various consistency. Most often, they can be found in the construction sites, where they are involved for mixing plaster solutions, concrete or glue. It is also necessary to remember that this category of pumping equipment has a number of certain selection requirements and operating conditions, non-compliance with which leads to a reduction in the service life and the impossibility of further work. More detailed information on assignment and requirements can be obtained on the MSNT website.

Application of pumps

In fact, the design of pumps for supplying liquid solutions is quite simple and unpretentious, so such equipment can easily be operated in any industrial and weather conditions. This is due to the fact that many construction and repair work is carried out either in hot or in the cold year of the year. In addition, if we take into account the short time on the completion of the construction, then work sometimes does not stop even in bad weather.

Such installations are capable of pumping both enough damaging and thick mixtures resulting from mixing liquid and bulk ingredients. In addition, some models are capable of transmitting solutions with a slight amount of solid particles, for example, small gravel.

Specialized requirements

The type and design of building pumps depends on what tasks they are calculated. So, for example, peristaltic and membrane pumps are suitable for pumping different plaster solutions, and for pumping concrete or cement - slurry. There are also models of gear pumps intended for the supply of hot bitumen mastics. However, regardless of the type and purpose of the pumping equipment, the practical identical requirements are presented to it, namely:

• For construction needs, quite powerful aggregates that do not require frequent, specific maintenance are needed. The design and device of such a pump should be simple and reliable at the same time, providing the possibility of continuous operation in almost any conditions, without risk to stop or idle production.
• The equipment should operate in a wide range of temperatures as the environment and indoors, as well as in a large dusting. In addition, all parts and important nodes should be made of materials having increased resistance to the effects of chemical, active, aggressive and corrosive substances.
• Such a technique should not be clogged by the components of the pumped solutions, and the design contribute to the quick assembly / disassembly to effectively clean the flow part.

The discrepancy of the above requirements often leads to damage to equipment nodes, failure and, as a result, suspension of production work.

Types of pumps for solutions

Modern pumping equipment manufacturers offer a wide range of models intended for performing production tasks for various purposes. So, for example, construction pumps equipped with a laminar-type impeller can be used in the food industry, and the centrifugal where the need for the pumping of various types of liquids from tanks, tanks and other containers arises. However, the main purpose of such models is still construction, where they solve several problems at once, namely transporting viscous solutions for mixing, mixing, as well as air pumping from pipelines.

In addition, construction models can be used in a wide variety of additional tasks. So, they are often used to transport cementing liquids, limestone and paint solutions at high temperatures, as well as technical water. Such equipment and for pumping foreign liquids falling into a trench, or used as a component for the preparation of mixtures.

There is also a type of pumps, the appointment of which is pumping liquid, active chemicals that can erod surfaces from metal and other materials. That is why such models are distinguished by the increased strength of key nodes and parts, reliably protected from the effects of acids and alkalis.

One of the basic requirements for the operation of devices working with aggressive substances is the tightness and ability to not be clogged by the sediment of toxic chemicals. Select modifications intended for salt or acidic solutions, as well as the most accurate dosage of the mixture.

Centrifugal pumps for pumping liquid solutions of medium viscosity function due to centrifugal force generated by the movement of the blades. They are able to transport more dense and viscous connections. Due to this, such a type of pumps is an indispensable attribute for pumping large volumes of liquid mixtures in the process of repair and construction work.

www.stroysmi.ru.

for water, viscous liquids, submersible

Content

Screw pumps, they are also called screw, are high efficiency aggregates. Their functional characteristics are not determined by the installation site and the properties of the pumped liquid. The screw pump is able to cope with the flow of water, in which a large amount of insoluble and soluble particles may be.

Installation of equipment can be vertical or horizontal, the position of the unit changes.

Device and principle of operation

Such a pump is a variant of a rotary unit. This equipment has become popular due to the use as a pump for viscous liquids. One of the applications is the removal of waste, characterized by increased viscosity, from the sewer system.

The principle of the auger pump is similar to the action of a gear device. Screw pump is simple. The rotor, which is a screw with blades, is placed inside the cylindrical housing. The magnitude of the rotor is selected so that it can easily move, but at the same time the gap between the wall in working condition was minimal. On both sides on the unit the nozzles are installed.

The equipment functions as follows:

• the pump is lowered into the well (well or pit for sewage drain), directly into the liquid medium and are connected to the power supply;
• using the first pipe, the liquid is absorbed inside the housing;
• when rotating the rotor, the screw blades of the pump are injected into the injection of water inside and direct it along the housing to the exhaust pipe.
• through the exhaust pipe, water comes out.

This is the device and the principle of operation of the simplest screw pump for water and other liquids. In the complicated structures, an enlarged number of screws and steps.

Scope and purpose

Purpose of this equipment - pumping any media: from a discharged pair before the mean viscosity suspension, while the screw design is able to solve all the tasks that are supplied in front of it. Most often, they are used as a pressure generator:

• in individual water supply systems that are collected by professionals or independently. The pump can be used not only in completely clean wells, wells, but also mines with sand. In wells with a lot of sand precipitation, a good result shows the submersible unit, for example, the pump is pitched;
• in the pumping and pumping systems of liquid mixtures. They are used in construction, designs for drying, on pipelines, in industrial aggregates. This is explained by the fact that they are used for different environments: from steam to liquid cement. An example is the use of a screw pump for the ASPRO G700 cement solutions. The KSG auger pump is used to injected cements. In the heavy industry, the equipment is used to pump suspensions, paints, means against corrosion, etc. In the food production, they are used to pump fats, juices, honey Ave. In the production of cosmetics, they are used to pump creams, solutions, shampoos, etc.;
• in systems for dosage supply of liquids. The auger in this case serves as a dosing and generating mechanism. The accuracy of servings does not change in any position of the pump. Used for dosage supply of polymeric materials, polyelectrolytes, flocculants and other complex chemical fluids that are difficult to pump. For such purposes, inoperative surface equipment is often used.

Such pumps can be easily mounted independently, they do not need constant inspections and they can serve for a long time.

Screw pump for cement solutions, plastering machine station (video)

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Types of pumps

The following aggregates are currently popular:

1. Aquarius. Compact pump with a diameter of up to 0.1m with a capacity of 2000l / h. Very simple unit, used in wells and wells. It allows you to supply water into the water supply system of private house-building or apply it for watering, a variety of technical purposes. To pump water from the mine, the pump is suspended on a synthetic cable, and in the open reservoir, the pump can be used in any sense. This practical unit is inexpensive and its installation and disassembly can be performed independently.
2. The barrel jack pump is used to pump water from different tanks. For models of various manufacturers, general features are characterized: low power and small dimensions, the units produce only from very durable materials that are not subject to corrosion and persistently oppose aggressive environments. Easy to use, easy to disassemble and transport. This equipment with specific qualities allowing to pump, both water and alkaline or acidic environments.
3. Belamin is a deep pump, good assembly and equipped with high quality components. They are very reliable and can work for a long time without a break. It has protection against overheating, dry stroke and other breakdowns. Such equipment is good to use for floats and mines of great depths. They are installed on their own within a few minutes, and their high power makes it possible to quickly roll out dirty flows and fully ensure all household needs, including watering the site and the autonomous supply system with water. The unit is mounted on the surface, and therefore cannot be sweeping.
4. Unipump ECOVINT is used for wells and wells of the minimum debit of aquifer. Small dimensions and large bandwidths make such pumps particularly suitable for cottages. It is easy to install in a casing of a small diameter, he will be able to provide water for a small family. Installation of the pump can easily perform almost any person. Such pumps are practically not vibrating when working, so the bottom of the source will not appear, and the filtering cone will not be collapsed.

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Operating Rules

To prevent equipment breakdowns, you must comply with the following rules:

• for pumping viscous environments, pumps that have a capacity of 300 rpm;
• transportation of viscous media requires the use of gland seals requiring with tightening time;
• holding resistance to pumping viscous environments, it is required to take into account the material and the length of the pipeline, the height differences;
• equipment must be applied under the bay to prevent dry stroke;
• solid precipitations are better to wash in front of the camera before launch. The device is equipped with crushers at the entrance to the unit. It will be able to protect against wear and prevent winding on the rotor of the fibers.

The screw pumps make it possible to effectively cope with the tasks of creating systems for individual water supply of country sites, cottages and country housing. They are characterized by reliability, low noise, simplicity of maintenance and repair, unpretentiousness and relatively low cost. The use of them in the system of autonomous water supply is a suitable investment of forces and means.

Main page »Pumps

byreniepro.ru.

Portal about pumps. Screw pump (for water, viscous liquids): submersible, global

Content

Such an apparatus as a screw pump is often called screw. The high efficiency of the unit is determined by the fact that its functionality does not depend on the body of the body, nor from the quality of the medium that must be pulled.

This unit can be applied under conditions when the liquid is heavily dirty or has an increased viscosity. It can be put in a vertical and horizontal position.

Principles of equipment

Screw pumps are a modification of rotary-gear pumps. The principle of their action is based on pumping fluid between the housing and the screw recesses along the length of the core of the screw. The equipment has a smaller number of gears, and the teeth themselves are located at a large angle of inclination.

Screw pumps work without closer. The connection occurs through a stator. Thanks to this design, another circulation principle is performed. The rotor does not just rotate, but performs a planetary movement, respectively, the axis is spinning according to the orbital line. The particle parts operating in the included mode consist of a stator and rotor. All parts in the aggregate are a special highly efficient mechanism.

The main active nodes are a screw pair of cycloid engagement. The rotor is a moving part of the mechanism of the acting pair. It performs planetary rotation inside the stator. From above of the surface of the stator there is a spiral form, which moves several times more intense than the stator itself. Due to the fact that they are all the time contact and combined, several closed sections appear.

During the movement of the screw, the place located on the part side of the pump is expanding. Thus, there is an increase in volume and, accordingly, the vacuum. The cavity is filled with the pumped substance. Screw teeth are embedded in the alignment of the combined screw, and the transportable environment does not interfere back.

By moving the auger, the cut-off liquid is pumped towards the discharge. The number of closed sections per unit length of the current working pair affects the obtained pressure of the pumping machine. The volume of each such plot causes its performance.

The pressure of the pumped substance increases due to the movement of screw metal rotors inside the stator. If you set a certain speed of the screw, then the pumped substance and its volumes will be permanent.

The screw pumps for viscous liquids have a design with which the constant constant discharge is created. In this case, the performance process can be adjusted without loss of primary pressure.

Appointment and scope of aggregates

Through such an apparatus, like a deep pump, it is possible to pump various transportable substances. The equipment copes with such a medium as gas, rarefied steam, water, viscous mixture, etc. In any case, the technique will solve all the tasks set before it.

Screw pumps are widely used:

1. As the main generator that creates the necessary pressure for the autonomous water supply system. Such devices can be used even in a very polluted medium, and not only in comparatively purified wells and wells. In cases where it is necessary to pump viscous substances, a submersible or depth type is usually used. They are smoothly working in deep holes.
2. As an aggregate feeding for the transportation of liquid substances. Such equipment is used on construction sites, in places of pumping or drying, as well as on the production of basic pipelines. Such widespread use of equipment is due to the fact that the screw pumps cope with the pumping of even liquid concrete and bulk substances.
3. As generators to create aft in systems where the pumping and fluid supply should be dosed. The auger works here both as the main generator, and as a dispenser capable of measuring the exact amount of water or other substance.

Among the modern pressure equipment, screw pumps occupy one of the first steps in demand frequency and application.

Screw pump for cement solutions, plastering machine Station (video)

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Advantages and disadvantages

The widest use of screwdrivers was found among the screw electric pumps, as they have a number of benefits:

• high-quality uniform feeding of pumped substances, without ripple;
• the possibility of transporting solid or bulk medium, as well as gaseous substances;
• pumping viscous liquids;
• can be used in working with toxic and aggressive products;
• pumps operate on the principle of self-priming;
• you can adjust performance in the process of operation without suppressing the discharge rate;
• works silently;
• easy to operate;
• does not require frequent replacement of parts.

Despite all the advantages, this equipment still has several drawbacks:

• high cost and complexity of the production of equipment;
• the regulation of working capacity is excluded;
• imperfect cooling function.

Most popular models

Since the appearance of the first apparatus, a lot of time has passed, and it has undergone significant changes. However, the basic principle of work remained unchanged. The screw shaft creates a discharge by pumping a certain volume of the substance toward the injection section.

List of equipment models that choose more often than others:

1. Borehole pumps Sprut. Used to pump clean water from wells and wells.
2. Aquarius pump. Compact and fairly productive apparatus.
3. Deep pumps Belamin. Reliable, differ in excellent assembly and high-quality components. Thanks to the power, even complex tasks are able to solve.
4. Pumps of the KSG series. Small-sized equipment, has a small weight.
5. Pumps for cement solutions ASPRO G700. Multifunctional injection unit for supplying cement mortar.

The principle of operation of screw pumps and a number of advantages guarantee reliable and high productivity of aggregates in working with any medium.

nasosovnet.ru.

Pump for pumping solutions | TD TEKHMASH

Pumps for solutions - specialized equipment, which is intended for mixing, preparation and supply of solutions of various consistency. Most often, such a tool can be found on construction sites in the preparation of various specific mixtures: concrete, plastering solution, wallpaper and dr. This type of pumps has a number of specialized requirements, the discrepancy of which leads to the complete destruction of the device and the impossibility of further operation of the product.

In fact, the solution for the supply of the solution is very simple in its design, it is easy to use every day, it can be easily moved, it can be in the rain or snow and work even at low temperatures. Such unpretentiousness is due to the fact that many construction work is conducted either in particularly hot or in cold periods, and if the time of completion of the construction is not approaching, even even in bad weather. Pumps are capable of transmitting both drum mixtures and thick, which are obtained as a result of mixing bulk and liquid ingredients. Also, some pump models can transmit mixtures with a slight amount of solid particles.

Construction pumps can be used in various subtasks. So pumps for pumping solutions are often transported by cementing liquids (including liquid cement), paint and varnish solutions at high temperature, lime mixtures and water for construction purposes. You can also use this type of pumps for pumping dirty liquids that fall into the trench and are no longer used as a material for mixtures.

As for more compacted pump models, they are also used in the chemical industry as well. Such a device is capable of working with aggressive substances, not dissolved under the influence of various toxic chemicals, not clogged by precipitation. They are allocated to those that are intended for the maximum accurate dosage, for salt or acid solutions.

Types of pumping pumps solutions

• Construction pumps with a laminar-type impeller. Used preferably in the food industry. Pumps centrifugal laminar type are often found where the need for pumping viscous and other liquids from tanks and various containers arises. The pump found its application in construction. The pump is able to solve two problems at once: the transfer of viscous liquids in tanks for mixing building materials and pumping air from pipelines;
• Chemical pumps for transmission of building liquid solutions. Active chemicals that can destroy metals and other surfaces are used in construction for various purposes. So, for their transfer to pressure, it is best to use specialized chemical pumps whose compounds are firmly protected from the effects of acids and alkalis;
• Centrifugal pumps for transmitting medium viscosity fluids. Pumps that are at the base of their work use centrifugal force generated by the movement of blades, capable of pumping more viscous and dense fluids. In construction, such types of pumps are an indispensable attribute for transmitting large volumes of liquid materials.

If you wish to facilitate the construction process, make it even better, then you need to seek the new pump in the Tekhmash shopping house. We supplies products directly from the factory and guarantee the stability of its work. Our mortar building pumps are popular with large construction companies and private individuals who choose cooperation with us in order to equip their housing.

We will help you to deal with the features of every model, choose for yourself the one that will be optimal and price, and in quality, find a way out of any difficult situation. Techmash is a guarantor of the durability of your structure.

tdtechmash.ru.

rastvoronasos.ru.

Pumps for solutions - Chemist 21 Directory 21

Calculate the estimated pump performance for the solution

K---Kolonna for leaching of hydrogen sulfide K-2-extraction column K-5 - a column for regeneration of a solution of caustic soda K-4 - a column for the regeneration of methanol T-1 - heat exchanger for using heat of the regenerated solution of the caustic sodium T-2-Capacitor Vapors of mercaptans and aqueous methanol T-3 - boiler T-4-Capacuator of Methanol T-5-boiler T-B-refrigerator Solid satellum solution) Ei-intensity-sump E-2 - Decanator for separating mercaptans from methanol -5 aqueous solution - Intermediate container of regenerated methanol Pump for source gasoline I 2 -Pasos for purified gasoline H-5-pump for a solution of caustic NTRA N-4-ONSOS for water N-5 -Pasos for methanol 1 - Entering Solid Satra 2 Entering 3 - withdrawal of purified gasoline into the commodity capacity of 4-conclusion of mercaptans.

U-reactor 2-intermediate collection 5-separator 4-pump for a catalyst solution 5-columns of the Vacuum Pharmaceutical Pharmaceutical Ethylene // - carbon dioxide /// - Circulating carbon dioxide IV-to the atmosphere V-light components VI-solution of the catalyst VII-trade ethylene carbonate

In the absorption machine, the role of the compressor performs a combination of a boiler and an absorber with an adjusting valve and a solution for a solution (Fig. 83). This peculiar thermal compressor carries out the circulation of the solution - weak when exiting the boiler and strong when it exits it from the absorber.

E - Pump for solution B - working cycle.

In the diffusion type absorption machine, there is no pump for the solution of the valves between the devices. Electricity consumption for evaporation of the solution is almost 2 times higher compared to the compression machine of the same performance.

Fig. 1.16. The destruction of the shaft and the wheel of the pump for the solution\u003e MEA after 12 months of operation.

MyLink "Data-url \u003d" http://chem21.info/info/639601/ "\u003e Chem21.info What pumping stations are used for cooking, pumping and supplying solutions What pumping stations are used for cooking, pumping and supplying solutions The pump pumping pump belongs to the category of specialized equipment, which is used in construction for mixing the components of the composition in order to prepare a homogeneous mass, as well as to supply a finished mixture of a certain consistency to the required distance or vertical. This solution for the solution is used, both on large construction sites and for repair work in small rooms. Such a station is able to interact with various concrete, plastering compositions, sandy-cement solutions and other varieties of liquid, semi-drying, dry, drums, knitting or thick mixtures. Each of the models can move the compositions with any amount of solid particles. Unpretentious in operation machines for the solution are perfectly suitable for working at low temperatures, on hard-to-reach areas without any communications, and can also be placed on an open area and function during heat, frost or precipitation. When there is no time to postpone the construction work due to bad weather, this installation will become an excellent solution. The design of such a machine for the preparation of the solution is characterized by simplicity and ease of use. Installation can perform many, both basic and side functions. For example, if necessary, the pump is used not only according to its direct purpose - for supplying the solution, but also to pumps for those or other liquid building materials. Reliable design of the technique, as well as the wear-resistant surface of working parts, allow the machine to work with aggressive substances. What are there pumps for pumping solutions All solutions supplying machines are divided into several types, depending on the method of bringing them into action, as well as the structural features of the working elements. By type of use, such a technique is divided into the following types: Pumps equipped with a laminar-type impeller. This unit is best suited for pumping the binding compositions in the Solonasos Tank. Also, it applies when it is necessary to pump off the extra air masses from the pipelines. Chemical pumps. This type of devices has hardened parts and is used to interact with active chemical compositions. The machine easily cope with the pumping of liquid alkaline solutions or any acids. Centrifugal pumps. This installation will be appropriate for working with medium viscosity mixtures. Powerful blades make it possible to quickly and efficiently pump a large amount of dense compositions. In order to ensure the supply of various mixtures to a large height and a distance of 200 meters horizontally, such units are used: diaphragm plunger installations; screw (Herotor) pumping stations; pneumatic Power Supplies (Pneumon Power Supplies). Having compact overall dimensions, any feeding can operate, both on an open construction site and indoors (in a residential building or manufacturing workshop). In addition, these machines perform work efficiently and quickly. Features of the design of diaphragm and plunger mortar pumps A diaphragm-plunger pump for cement mortar is often used on objects where plaster works are carried out and a large amount of composition must be supplied. Such machines perfectly cope with mixtures on vertical surfaces, which makes them convenient to use when carrying out repair and finishing works. The station for a diaphragm-plunger-type solution is capable of supplying the construction mixture to a distance of about 40 meters in height. At the same time, liquid compositions of 5 mm with a fraction of 5 mm can be loaded into its tank. In order for thick solutions to be resolve, it is necessary to monitor the operating pressure indicators that should not exceed 25 atm. It is worth remembering that with an overly fast exception of water from the composition, traffic jams in a concrete line can be formed. This machine is a narrow specialized technique and is not suitable for pumping some concrete compositions, including: foam concrete and polystyrene mixtures with low or medium density. Principle of operation of screw (Herotor) mortar pumps The pumping station for a solution of a screw (gerotrier) type has a design that connects a screw pair into the feed part with the feeding steel screw, rotating in the stator (rubber cable), due to which the liquid composition is moving. This principle of operation allows the use of mortar pump to work with mixtures that have low density. A screw station for the preparation of the solution and its feed, due to its small size and great performance, allows you to work as quickly as possible and on any hard-to-reach for other techniques of the construction site. Solutions move quite carefully, so such a machine can easily cope with foam concrete, polystyrene and plastering composition. Using this installation, you can pump the required amount of solution to fill emptiness in the walls, apply plastering masses, as well as supplied compositions for laying bulk floors. Screw mortar pump is a universal machine that is safe in operation, has a low cost and is easily repaired, in case of fail. Such installations are considered the most reliable option, in comparison with their analogues. The only restriction in the use of similar pumps is the inability to apply the machine when working with solutions, the fractionality of which is more than 3 mm. In order for the composition to be captured by a screw and portion transmitted along a concrete pipe, the solution should be quite movable. Proper use of the car will prevent premature wear of the screw pair. Using Pneumatic Power Suppliers (Pneumatic Power Supplies) Pneumatic feeder (or pneumatic pressure) is the most universal and multifunctional installation for the preparation of solutions. Such a machine can perform a huge number of tasks, including, as an independent manufacture of any solution and its portion feed at a distance of up to 80 meters vertically. Especially indispensable such technique will in the case when it is necessary to work with semi-dry or dry cement-sandy solutions, where the fraction's size is about 15 mm. Also, the installation can work with any rigid concrete. This machine performs the main construction tasks and is successfully used in a frame home-building, as well as setting the sliding formwork. The pneumatic feeder is a vessel equipped with a hermetically closing hatch for the loading of mixtures, as well as mechanisms for controlling air masses, and a pipe for unloading the finished composition. Such a machine has vane activators that produce stirring of individual components of the solution and contribute to the acceleration of the composition of the composition. Pressure injection for unloading building masses can be fully adjusted by the installation operator. Installation of pneumoshossexy allows you to move the machine throughout the construction site. And thanks to its functionality (the ability to produce a mixture on the site and, when exposed to pressure, submit to the discharge place), the machine received the name mixer-pneumatic phase. Modern construction needs a professional technique that will accelerate the workflows, by moving them as much as possible. Pumping stations will facilitate the work of the construction team and will allow faster to complete work. In addition, such equipment significantly improves the quality of the final result. The company "Solonanasos.ru" offers its customers a variety of configuration, price and capabilities of the model of construction equipment. Our employees will help you choose such a lease solution pump, which will perform both basic and auxiliary tasks on your construction site. And the service provided by the company will certainly be impressed. According to the site: http://rastvoronasos.ru fix-Builder.ru.

With an increase in the construction of residential and industrial facilities, there is a need to appear new technologies and equipment. One of these includes a screw pump for the supply of cement mortar. Its use in large construction sites increases productivity and improves the quality of work performed.

When erecting huge objects, large volumes of liquid cement solutions are involved. We must quickly deliver concrete to the construction site, the delay in the work does not affect its quality. To do this, use structures in the form of an iron bar attached to the car. The composition in such a device is obtained homogeneous, without bundle. Inside the mixture is constantly in motion, which ensures the preservation of its technical characteristics.

Feed to an object occurs with a special loading tray. But for this it is necessary to ensure an entrance to the place of construction, which is not always done. In this case, the revenue comes a screw pump. Its advantages are the possibility of vertical and horizontal transportation of the solution and easy access to hard-to-reach places.

Concrete pump is installed on the chassis of a truck and equipped with a full-turn arrow. With the help of such equipment, it is easy to concrete overlaps in the construction of multi-storey heights.

Benefits of concrete pumps

Application has some features. The main one:

• Attraction to the work of concreteers with high qualifications.
• The need to adhere to certain technological requirements.
• High-quality organization of the production process.

For proper operation, a specially prepared mixture is required, taking into account the diameter of the sleeve and the feed range.

The use of this equipment is appropriate in the case when the solution of the solution to the object is difficult or impossible. For example, when arranged in cramped conditions or to work with hustarized systems. For hard-to-reach designs, pumps are suitable for various types. For transportation of liquid concrete, stationary, trailed and mobile types are used.

Mobile screw fixture is mounted on the chassis of a truck. Its advantages in comparison with other species in greater power, which allows to deliver to a platform to 150 m. Cube of finished concrete per hour. This installation is more maneuverable and movable. It has good performance, which reduces the construction time of objects. The disadvantage is the price, only large construction companies can be purchased. For private developers, the exit may be leased, calculated on the basis of 1 hour of operation or delivery of 1 cubic meter.

The pump for the supply of concrete is capable of silently and continuously feed the solution of any rigidity. The formation of the jar in the sleeve is eliminated by changing the direction of rotation of the mixer. The main disadvantage is the wear of the pipeline for supplying the mixture. This may lead to its incorrect operation. Due to the harmony of concrete, blockage is formed. In this case, the instrument should be turned off and clean the location.

1. The feed system must be rinsed with water. To do this, install a water pump.
2. Before starting work, hydraulic pressure is checked.
3. Locking the pipeline route, a large number of bends should be avoided. Its parts are under the tilt. It is impossible to accommodate at right angles.
4. To start work, the concrete pipe is wetted by a lime solution forming a kind of lubricant on the walls.

It is unacceptable to make long breaks in work. Even in the period of downtime, it is necessary to pump a small amount of pipeline.

Overview of popular brands of pumps

Compact device for feeding liquid mixtures. Construction is used in the transportation of concrete solution, putty, plasters. It works from electric power and is distinguished by ease of care. It has an adjustment of the performance and speed of the engine and the reverse mode, which allows working with the compositions containing solid particles.

Due to compact dimensions (1x0.5x0.5 m) and low weight (11 kg), it is possible to use in complex and cramped conditions. The bunker has a capacity of 25 liters, the kit includes a hose on 5 m, connecting nozzles and tubes, pressure gauge. You can buy in most existing online stores of industrial equipment.

2. Screw G10-G85.

For pumping solutions containing solid particles. The installation provides permanent working pressure without ripple, which serves as protection for the mixture. Created to recycle from 0.2 to 20 m cubic per hour.

The horizontal pump is designed to feed on the object of fine-defective cement formulations. KSG-705 is a compact multifunctional electrical device with adjustable speed. It is used in construction for pumping aqueous and concrete mixes, liquid plaster solutions, putty, varnishes and paints.

Use to strengthen and enhance the foundation, stone and brick masonry, to apply plaster and putty, filling out voids in structures. The advantages include multifunctionality, mobility, simplicity and convenience. Weight - 15 kg, the kit includes a 5-meter hose with a GEKA connection, a pressure gauge and nozzle. The container of the bunker is 10 liters, the maximum feed length is 10 m.

A screw device is used to pump viscous cement solutions, putty, adhesive mixtures. This type is used to supply concrete to a considerable height, when filling cracks in brickwork and applying plaster on the walls.

The advantages are:

• removable 30-liter bunker;
• low weight and compact dimensions;
• size of solid pumped particles up to 3 mm;
• equipping high pressure screw pump;
• adjustable feed;
• food from the household electrical network.

The cost is higher than other analogues, due to the materials from which it is made. Production is used steel, which makes it more reliable in operation and allows for overhaul. The stator is made of polyurethane - material that is considered the most durable. The rotor is made of steel with stainless properties. For the convenience of moving through the construction site in the installation, supports and wheels are conveniently converted.

The scale of construction, which is gaining strength every year, stimulate the development of technology. At construction sites, to relieve and accelerate work, a variety of equipment appears.

On large construction sites, the use of a pump for supplying concrete especially facilitates. The use of modern technology of receipt of a concrete solution significantly increases the performance and quality of work.

1 Features of the use of concrete pumps

The pump for concrete is complex in applying the technique. The use of the device has the following features:

• working with the unit is allowed only by high-class specialists;
• it is necessary to comply with technology and rules of operation;
• responsibly refer to the organization and preparation of work;
• use a special concrete solution, taking into account the diameter of the sleeve for feeding, the flow conditions of the mixture to a certain place and distance.

Having considered the features of the application of such equipment, it can be concluded that the concrete pump is mainly used in impossible or difficult conditions for supplying the mixture. For example, a dense building, it is difficult to drive up to the construction site or you need to submit a solution to a large height - with such difficulties with concrete pump it is easy to cope.

1.1 Types of pumps

While working on the unit, the principle of displacement is valid, the system creates a volume that may vary. Such a principle divides pumping devices into two types: piston and herotor.

1.2 Concrete pump at work (video)

1.3 Piston devices

In piston devices, concrete is served constantly. To date, the technique may apply a concrete mixture to a height of 6-65 m, the volume of the supply of the solution reaches 180 m³ / h. Between the surfaces of the pistons that are drunk, sometimes small cement particles sometimes engage, so the piston device has a short life.

The concrete solution comes with jerks. There are devices with a hydraulic device, which differ in durability of operation and softer supply concrete. It does not change the feed rate, and high pressure makes it possible to supply long distances. The operation of two-cylinder apparatuses is so soft that almost imperceptible.

1.4 Herotor pumps

These are auger appliances with continuous supply of concrete solution. Characteristics of heotor equipment make it possible to work silently with the composition of any rigidity. When the plot in the hose is produced, it is removed using the engine that can change the direction of rotation. The main disadvantage of the gerotrous design is a fairly fast hose wear for the mixture. But the advantage is the cheapness of repair, which can be made without the intervention of specialists.

1.5 Mixer Concrete

Delivery of concrete mix on the construction site is a difficult task. Invalid actions may well spoil the quality of the solution. The use of the concrete mixer prevents such nuances. A concrete mixer with a pump is fixed on the car chassis. The iron barbell inside is equipped with blades. The movement of the barrel clockwise helps to move the mixture inside, and when the reverse process is turned on, it pushes a concrete mixture along the blades to the discharge hole.

Advantages of using the mixer:

• the homogeneity of the mass remains and the bundle of the solution is prevented;
• the solution is constantly in motion, even with delays, which contributes to the preservation of the technical characteristics of the material.

The capacity of the barrel allows you to move or prepare up to 9 m³ of concrete solution. The concrete mixer is equipped with a loading tray for pumping the finished mixture to the construction site,. Use such transportation when you can easily drive up to the construction site. If there is no access to the place of development - the pipeline is used, which is intrapless equipment. The use of such a device has the following technological advantages:

• horizontal and vertical movement with one equipment;
• easy work in hard-to-reach places.

Pipeline equipment - devices for connecting a concrete mix or a separate type of construction equipment. Separate technique involves the installation of the pump on the car, using a rotary boom. Such devices allow the transportation of the solution in a vertical, horizontal position for auxiliary structures.

The delivered mixture of trays is moved to the pump receiver, and through the pipe, which consists of three parts, the solution is supplied to height and in hard-to-reach places.

1.6 stationary pump

On the principle of operation, the device is divided into standard, trailed, mobile, or concrete pumps. The technique can be equipped with a mechanical or hydraulic drive. The main parameters of construction aggregates: feed height, performance and distance.

Stationary concrete pump can be performed in several versions and installed on an onboard truck or a special platform that is responsible for the convenience of moving. It is worth noting that the design is made in the form of a trailer with the chassis, and provides a continuous supply of the mixture. To carry this technique is very simple, picing up for a cargo machine.

The principle of operation is based on the continuous pumping of a large number of concrete mass. The design of the device has two modes: the supply of high pressure mixture (the performance of work is significantly reduced), and low pressure mode (with greater performance).

1.7 Pumping solution with a tank pump of pine

Machine-building company Stroymukhana offers the Gerotor (screw) to the buyer with 78.300 / 500/1000 pine. The treadmaster pump pumps viscous and abrasive masses, a material that is distinguished by density (foam concrete, polystyrene poly), cellular concrete solutions. The device is used for pressure supply of multicomponent and complex masses, which are sensitive to mechanical effects. Also, the apparatus supply pasty and liquid solutions with solid particles or fibers.

2 design

The mortar pump is equipped with a hopper for receiving material from the mixing unit. The presence of a consuming bunker makes it possible to continuously supply the material when using the mixing technique of cyclic action. This is an important condition for working where the break is unacceptable (filling forms, mechanical application of plastering material, etc.). To facilitate the transportation of the device are equipped with wheel chassis.

The feeding part of the screw equipment consists of a hetero pair and a feeding auger. The one -road screw (moving part of the steam) makes the planetary movement in the stator, which has an internal two-way surface with a step of two times more than the screw step. With constant contact, the screw and the clip creates several closed cavities.

When the screw is moving, the cavity from the suction side increases, in which the discharge is formed. Under the influence of such a discharge, the cavity is filling with the pumped material. This design helps as carefully move foam concrete, plastering and polystyrene mixtures.

Herotor concrete pumps with small dimensions have high performance, allow you to pump the working material in emptiness, pump mixtures for bulk floors, feed and apply plaster solutions.

2.1 Pump for concrete with your own hands

Before assembling the main nodes of the device, you need to create a plan or make a drawing. It will help to collect all the equipment in one. The main elements of the mechanism are piston and cylinder.

All nodes and parts of the concrete pump are performed using a lathe. When fitting the nodal parts, the accuracy of the error must be at least ± 0.1 mm. The base for the hull is made of sheet stainless steel, which will help to avoid corrosion and chemical influences. The valve is customized with a screwdriver. The design is collected by a wrench of the required diameter. The drive part of the device is performed by a hydraulic or electromechanical manner.

The choice of method depends on the financial capabilities of the master. Indeed, hydraulic drive has a more complex design and high price level. Therefore, you should make your choice in favor of the electric drive unit.

Basically, a three-phase asynchronous electric motor is used, which is attached to the rod of the piston head. The mechanical converter and reduction gear with lower torque are used to reduce the load.

2.2 Installation of the aggregate

The electric motor is mounted on the axial base of the trading. The gearbox is installed on the motor shaft using a coupling. The converter is connected to the piston of the pump and the output shaft of the downward gearbox. Then the engine is connected to the feed cable.

When assembling a concrete pump, the following materials will be required:

• accessories for drawing;
• iron sheet up to 6 mm;
• blanks for piston and valves;
• metal pipe with a diameter of 400 mm;
• three-phase motor with a starter;
• a set of plumbing tools;
• reducer with downstream;
• car trailer or welded base.

It is worth remembering that working with electrically conductive installations should be carried out by a qualified specialist.