Concrete Spray Pump

Concrete spray pump is a kind of machinery that continuously transport concrete mixture or mortar by compressed air or concrete pump along the conveying pipeline, and spray it to the construction surface. This kind of equipment is widely used in underground engineering, hydropower engineering, roadway, tunnel, culvert and other shotcrete construction operation.

Concrete spray pump takes the plunger concrete pump as the basic body. It delivers concrete along the conveying pipe. There is a nozzle installed at the conveying pipe outlet. The compressed air here sprays the concrete out.

Concrete spraying pump is a kind of equipment widely used in building construction. It is mainly used for spraying materials such as concrete or mortar to the designated construction surface.

what is concrete spray pump
ModelPBM20
Theoretical concrete output(m³/h)1.5/1.8
Theoretical concrete pumping pressure(MPa)1.5
Max. vertical conveying height(m)12-15
Max. horizontal transmission distance(m)50
Max. Aggregate particles(mm)6
Hopper volume(m³)0.14

Working Principle

Concrete spraying pump drives the pump body through electric motor or internal combustion engine. Through the pressure of the pump body, it transports materials through the pipeline to the nozzle. Then it sprays the material to the construction surface with the help of high pressure gas or the pressure of the pump body itself. This process realizes the rapid and uniform spraying of concrete or mortar, and improves the construction efficiency and quality.

Type and Classification of Concrete Spray Pump

Concrete spraying pump includes different types, according to various classification methods.

As for the power source, it can be divided into electric concrete spraying pump and diesel concrete spray pump.

Electric concrete spraying pump is suitable for construction environment with stable power supply. While diesel engine concrete spraying pump is suitable for construction environment with insufficient or unstable power supply.

Meanwhile, by function classification, there are ordinary concrete spraying pump and high-pressure concrete spraying pump. High pressure concrete spray pump with higher spray pressure, is suitable for construction scenarios requiring higher adhesion and compaction.

concrete spray pump
shotcrete pump machine from LUTON

Application of Spray Pump

Concrete spray pump has wide application in building construction, mainly including the following aspects.

  • Interior and Exterior wall spraying of building

For concrete or mortar spraying of interior and exterior walls of building, spraying pump shows its advantage of perfect construction efficiency and quality.

  • Tunnel and Subway Construction

During the task of excavation, support and lining of tunnel and subway, concrete spraying pump can efficiently press shotcrete or mortar materials to enhance the stability and durability of the structure.

  • Bridge Construction

In the construction process of pile foundation, cap and pier parts of the bridge, sprayer pump can shot concrete or mortar and other materials to ensure strength and stability of the structure.

  • Foundation Treatment Engineering

In the foundation treatment project, such as foundation reinforcement, soft foundation treatment, etc., this spraying machine can spray concrete or grout material, improving the bearing capacity and stability of the foundation.

applicatio of concrete spray pump
shotcrete pump is working

Advantages and Characteristics

  • High efficiency

Concrete spraying pump can realize continuous and efficient spraying operations, which greatly improves the construction efficiency.

  • Uniformity

The sprayed concrete or mortar surface is smooth and uniform, which improves the construction quality.

  • Reduce Labor Intensity

Compared with the traditional manual spraying method, spraying pump can complete the spraying work efficiently and automatically, reducing the labor intensity of workers.

  • Strong Adaptability

Concrete spray pump can adapt to different construction environment and working conditions, such as construction sites with high or low temperature, high or low humidity and other conditions. Also it can deal with different kinds of concrete or mortar materials.

shotcrete machine
LUTON Shotcret Pump

Operation and Maintenance

When using concrete spray pumps, be careful with the following points.

  • Correct Operation

Operators should be familiar with the operation methods and safety procedures of the equipment to ensure the correct and safe usage.

  • Regular Maintenance

Maintain the equipment regularly. Check the wear condition of each part and replace the damaged parts in time to ensure the normal operation. At the same time, pay attention to cleaning the residual concrete inside the equipment to prevent blockage and damage.

  • Safe Construction

Safety warning signs and protective measures shall be set up at construction sites to ensure the safety of the construction personnel. At the same time, carefully control the spraying pressure and speed, to avoid the production of excessive impact force and splashing phenomenon.

To sum up, concrete spraying pump is one of the indispensable equipment in construction. The advantages of high efficiency, uniform working performance, low labor intensity and strong adaptability, make it widely used in various construction scenarios.

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