Plunger pump type continuous wet-type guniting machine

Abstract

The invention discloses a plunger pump type continuous wet-type guniting machine. The plunger pump type continuous wet-type guniting machine comprises a power device for providing a hydraulic oil by driving a main oil pump by use of a motor, and a stirring device arranged at the front end of the frame; a plunger pump type guniting device pushed by two hydraulic oil cylinders arranged at the rear end of the frame is arranged between the power device and the stirring device. The power device is used for providing the hydraulic oil; the hydraulic oil is further provided to each actuation element by use of each reversing valve; due to the designed plunger pump type guniting device, the working principle of the plunger pump type guniting device is equivalent to that of a hydraulic axial plunger pump; two hydraulic oil cylinders are used for pushing plungers in the plunger pump type guniting device, respectively, so that the process of sucking the concrete grout in the pump and discharging the concrete grout out of the pump can be realized; the suction and discharge processes are performed simultaneously, the whole actions are high in consistency, continuous guniting is realized and the group discharge efficiency is greatly improved; for discharging the grout, the plungers are capable of generating great thrust to the concrete grout, and therefore, the effect of long guniting distance can be achieved and the ejected grout is capable of covering the whole tunnel to meet the use requirements.

Description

technical field [0001] The invention relates to the field of coal mine equipment, in particular to a plunger pump type continuous wet spraying machine. Background technique [0002] The spraying process is a process of spraying semi-wet or fully wet concrete to the wall or other places where concrete reinforcement is required. It has the characteristics of uniform spraying and high efficiency, so it is widely used in coal mine roadway construction During the process, the biggest disadvantage of the semi-wet spraying process (also known as tidal spraying) is that the on-site operation has a lot of dust, which reduces the operating environment for workers, especially for places with insufficient lighting in coal mine roadways, it will be difficult to distinguish the spraying process. The position of the slurry; the existing full-wet method adopts the rotor-type spraying machine, and its working principle is equivalent to the rotor-type vane pump. The pumping process of the con...

AI Technical Summary

Problems solved by technology

[0002] The spraying process is a process of spraying semi-wet or fully wet concrete to the wall or other places where concrete reinforcement is required. It has the characteristics of uniform spraying and high efficiency, so it is widely used in coal mine roadway construction During the process, the biggest disadvantage of the semi-wet spraying process (also known as tidal spraying) is that the on-site operation has a lot of dust, which reduces the operating environment for workers, especially for places with insufficient lighting in coal mine roadways, it will be difficult to distinguish the spraying process. The position of the slurry; the existing full-wet method adopts the rotor-type spraying machine, and its working principle is equivalent to the rotor-type vane pump. The pumping process of the concrete is realized through the rotor blades, which has the characteristics of smooth discharge and not easy to stick to the material cavity. However, due to the limitation of its internal structure, the spraying machine of this structure has the disadvantages of short spraying distance and low spraying efficiency. The spraying capacity is about 30 cubic meters per hour, and the short spraying distance will make the spraying The concrete slurry produced cannot completely cover the entire roadway, and cannot fully meet the spraying requirements of the coal mine roadway

Images