First, an overview
2ZBQ type pneumatic grouting pump is mainly used for mine, subway, water conservancy construction, grouting and broken rock consolidation engineering, underground roadway bolt grouting, tunnel leading guide rod supporting wall grouting, water plugging and broken rock consolidation grouting, heating area, coal mine, water shutoff, use ordinary slurry can be used the borehole grouting consolidation engineering waterproof grouting broken rock. It can also be used to prefill the working face which is suitable for the depth of the well. The pump can be used for single fluid grouting (cement slurry), and can also be used for two liquid grouting (cement slurry, water glass), and it can also be used to transport other kinds of viscosity or less corrosive serous and clear water. It can also be flammable, explosive, strong radiation, more dust, large temperature change and water dripping place.
Two, 2ZBQ Pneumatic cement grouting pump features:
1.2ZBQ type Pneumatic Injector Pump
(1) small size, light weight, mobile handling, to adapt to frequent mobile multipoint grouting.
(2) due to the use of pneumatic transmission, the grouting performance of the pump is very suitable for large flow volume when the grouting pressure is low, and the small flow condition is needed when the grouting pressure increases.
(3) the use of air pressure transmission in the working environment of flammable, high explosive, water dripping and large dust is also available.
(4) double liquid grouting can be realized with a pump under the condition that the slurry is not very strict, so the purchase cost of the construction equipment can be greatly reduced.
Three. The principle of work
Double liquid speed regulating pneumatic chemical injection pump for bridge construction in Erdos Bridge
1, 2ZBQ type pneumatic injection pump
The compressed air passes through the ball valve, the gas source two body, the two five way reversing valve into the cylinder, and propel the cylinder piston for reciprocating movement. The cylinder piston is connected to the pull rod of the slurry cylinder, so the cylinder piston is reciprocated and the cylinder piston is also driven by the reciprocating motion to complete the pulping.
Reversing the disc by installing the dial on the cylinder pull rod, it will move the stroke valve back and forth, control the direction change, change the intake and exhaust direction of the cylinder, and complete the reciprocating motion of the cylinder piston continuously.
Because of the pneumatic transmission, the grouting performance of the 2ZBQ pneumatic grouting pump is very suitable for large flow rate when the grouting pressure is low, and the small flow condition is needed when the grouting pressure increases. The synchronous double liquid grouting pump can be used for single liquid grouting or double liquid grouting. The pump can stepless volume or automatic variable pressure, and has two liquid grouting with a pulp ratio of 1: 1.