Front canopy automatic water curtain of digging and blasting working surface and working method thereof

Abstract

The invention discloses a front canopy automatic water curtain of a digging and blasting working surface and a working method thereof. The front canopy automatic water curtain comprises a shower nozzle, a water pipe and an automatic control device, wherein the shower nozzle is mounted in the inner groove of a front canopy, which is 1-2 meters far from the digging and blasting working surface; the automatic control device is mounted at the back end of the front canopy; the water pipe is communicated with the shower nozzle, then extends into the back end of the front canopy from the inner groove of the front canopy and is communicated with the water outlet of the automatic control device; the automatic control device is structurally composed of a water valve, an impacting plate, a supporting rod, a chuck, a heavy hammer and a connecting rod mechanism; the heavy hammer is connected to the rotatable chuck through the supporting rod and the heavy hammer at a normal state is located at a closed position of a handle of the water valve; the impacting plate is fixed at one end of the connecting rod mechanism and the plate surface of the impacting plate faces to a blasting and impacting direction; and the other end of the connecting rod mechanism is clamped into a clamping groove of the chuck at a normal state so that the clamping disc is at a locking state. The front canopy automatic water curtain has an automatic function of blasting impact waves and automatically spraying and has high flexibility; and the front canopy automatic water curtain can spray while blasting.

Description

technical field [0001] The invention relates to coal mine underground dust-proof equipment. Background technique [0002] At present, automatic spraying devices are installed on the blasting and digging working faces of coal mines to eliminate the smoke and dust after blasting. Existing spraying device is to arrange sprinkler head in the roadway near working face, and electromagnetic valve or pendulum automatically controls the opening of spraying. There are the following deficiencies: when the dust-proof water quality is not good, the electromagnetic valve is blocked and the electromagnetic valve is frequently activated, which is easy to burn; the spray head is installed too close to the working surface and is easily damaged by blasting; if it is installed too far, there will be smoke and dust in the working area. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an automatic water curtain for beam d...

AI Technical Summary

Problems solved by technology

There are the following deficiencies: when the dust-proof water quality is not good, the electromagnetic valve is blocked and the electromagnetic valve is frequently activated and easily burned; the spray head is installed too close to the working surface and is easily damaged by blasting; if it is installed too far away, there will be smoke and dust in the working area

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