High quality concrete spraying equipment
High quality concrete spraying equipment is widely used in various construction projects, including but not limited to:
Tunnel and underground projects: used for tunnel lining, reinforcement and repair to ensure the stability and safety of underground structures.
Bridge and road projects: used for the construction of bridge piers, bridge deck paving and road reinforcement to improve the bearing capacity and durability of the structure.
Water conservancy projects: used for the reinforcement and repair of water conservancy facilities such as reservoirs and embankments to ensure the safe operation of water conservancy facilities.
Construction projects: used for reinforcement and waterproofing of basements, basement roofs, walls and other parts to improve the overall quality and safety of buildings.
High quality concrete spraying equipment is a vital mechanical equipment in civil engineering and tunnel engineering.
1. Definition and function
High quality concrete spraying equipment is a mechanical device that uses compressed air or mechanical power to form a suspended air flow with concrete in a certain proportion, and sprays it onto the surface to form a dense concrete layer. It is mainly used for support operations in tunnels, mines, subways, water conservancy and other projects, and can significantly improve construction efficiency and quality.
2. Working principle
The working principle of concrete spraying equipment involves multiple links, including concrete preparation, transportation, spraying, and accelerator dosage control. Specifically:
Concrete preparation: In a special mixing station, the cement, aggregates, water and admixtures are evenly mixed according to the construction mix ratio to ensure that the quality and performance of the concrete meet the design requirements.
Transportation: The prepared concrete is transported to the spraying site by transport tanker, and the concrete is transported to the spray head along the pipeline by high-pressure pump through pumping.
Spraying: At the nozzle, the concrete is mixed with compressed air or mechanical power to form a suspended air flow, and is sprayed onto the surface to be applied.
Accelerating agent dosage control: In order to improve the setting speed and strength of concrete, an accelerator dosage control system is usually equipped. The system is automatically controlled by a computer and accurately calculates and adds the appropriate amount of accelerating agent according to the concrete injection speed and injection volume.
3. Types and Characteristics
High quality concrete spraying equipment can be divided into various types according to its working principle and structural characteristics, such as wet concrete spraying machines, dry concrete spraying machines, rotor concrete spraying machines, etc. Among them, wet concrete spraying machines are popular because of their mature technology, reasonable structure, stable performance, and convenient operation and maintenance.
4. Application areas of high quality concrete spraying equipment
High quality concrete spraying equipment is widely used in various tunnels, mines, subways, water conservancy and other projects, especially in situations where rapid support and reinforcement are required. It can significantly improve construction efficiency and quality, and reduce labor intensity and safety risks.
