5-20Mpa Cement Spraying Machine Tunnel Chemical Pneumatic Grout Pump

Tunnel Chemical Grouting Pneumatic Pump Machine

Working Principle of Pneumatic Injection Pump

The pump is composed of pneumatic triple parts, a cylinder, piston rod, reversing valve, slurry cylinder, suction and discharge valve group, pump frame, etc.
The pump slurry parts are made of high-quality stainless steel, and the slurry seal is made of corrosion-resistant material sealing assembly.
The pump is a double-cylinder acting plunger pump. Its working principle is: the compressed air generated by the air compressor pushes the piston in the cylinder to reciprocate, and the double plungers of the slurry cylinder also reciprocate at the same time, and the action of the suction and discharge valve group completes the suction and discharge of the slurry cylinder. Pulp work.
The pump uses the working medium (slurry, gas) to transmit pressure signals, forming a closed-loop automatic control performance. The structure is simple, the use is safe and reliable, and there is no problem with grouting overpressure.

Technical Parameter of Mining Pneumatic Grouting Pump

Precautions of Pneumatic Injection Pump

1. The faucet of the suction pipe should be placed below the slurry level, and no air can be inhaled, nor can the suction faucet be removed and directly sucked by the suction pipe.
2. Ensure that the slurry is evenly stirred, and no large particles and foreign objects enter the slurry suction pipe.
3. The suction pipe and the suction joint must be clamped with a pipe hoop or iron wire to prevent air leakage.
4. When injecting double slurry, the same slurry cylinder should be used fixedly. (If the water glass is on the right side of the slurry tank, it will be on the right side every time)

Application of Pneumatic grouting​ Pump
1. Pneumatic grouting pumps are mainly used in coal mines, iron mines, and other shaft wall waterproofing, and reinforcement grouting projects, as well as grouting water, blocking, and grouting consolidation projects in broken rock formations such as subways, tunnels, water conservancy, and buildings.
It can also be used for pre-grouting of the working face suitable for good depth. The pump can be used for single-liquid grouting (cement slurry), can also be used for double-liquid grouting (cement slurry, water glass), and can also be used to transport other kinds of slurries and clean water that are not too viscous or corrosive. The pump can be adjusted steplessly, can also be automatically variable at constant pressure, and has a double-liquid grouting function with a slurry ratio of 1:1.