With the improvement of mechanization, the coal mining face continues to lengthen, the problem of gas accumulation in the corners of the backward coal mining face is becoming increasingly serious. In addition, there are also similar problems in underground coal bunkers, high rise areas in tunnels, short tunnels, refuge chambers, material warehouses, etc. Many mines still have gas exceeding the limit low oxygen levels, the safety hazards are complex difficult to deal with. In order to cope with the situation, mechanical equipment was constantly d the working environment was gradually improved, leading to the birth of gas diluents.

The injection type gas diluter includes a jet injector, a jet pipe, a stainless steel shell. One end of the stainless steel shell is equipped with an air inlet, the other end of the stainless steel shell is equipped with an air outlet. A booster is installed inside the stainless steel shell at the position of the air inlet, an air splitter is installed at the center of the booster. The jet injector is installed on the inner side of the booster through a first fixing screw. The jet injector has an annular cavity inside, the inner side of the annular cavity is inclined with a spray hole. The top of the annular cavity is connected to an intake pipe that runs through the stainless steel shell. The bottom of the intake pipe is equipped with a compressed air inlet, an inlet valve is installed on the intake pipe at the compressed air inlet. An air filter is installed on the intake pipe along the intake direction, the inner side of the booster is installed through a first Jet tube, The top of the stainless steel shell is equipped with two hanging ring screws, the bottom ends of the two hanging ring screws are respectively connected to the side walls of the jet injector jet pipe through threads.