Dry type dust collector for mining drilling orifice

Abstract

A dry type dust collector for a mining drilling orifice relates to coal mine drilling dust collecting equipment. A slag discharging case is a sealed case body; the middle part of the slag discharging case is provided with a water layer; the lower end of a cyclone dust collector passes through the water layer and reaches the lower part of the slag discharging case; the lower part of the slag discharging case is provided with a packing auger and a pneumatic motor; the back part of a dust collecting device is connected with an inlet of the cyclone dust collector via a hose; the inlet of the cyclone dust collector is arranged on the upper part of the slag discharging case; a gas outlet is further formed in the upper part of the slag discharging case; one end of an air duct is connected to the center of the cyclone dust collector from the upper part and the other end enters into the water; an outlet of the lower part of the cyclone dust collector reaches the slag discharging pipe; and the packing auger is driven by the pneumatic motor. The beneficial effects of the dry type dust collector for the mining drilling orifice are that particles and dust can be separated via the dust collecting device; the dust and gas can be absorbed into the cyclone dust collector of the slag discharging case via a negative pressure pipeline; after separation of the dust and gas, the dust falls into the packing auger and is exhausted; the gas enters the water layer for secondary purification and then enters a gas pumping and discharging pipeline; and dual purposes of orifice dust collection and gas pumping can be achieved.

Description

technical field [0001] The invention relates to the technical field of coal mine machinery, and further relates to coal mine drilling and dust removal equipment, especially the mining drilling equipment that separates and purifies the dust and gas at the drill hole, the gas directly enters the drainage system, and the dust settles in the slag discharge device and is discharged. Orifice dry dust collector. Background technique [0002] At present, coal is the main energy source in our country, and the safety and efficiency of the mine must be ensured during coal mining. Mine gas is one of the main natural disasters in coal mines. In order to reduce the gas content during coal seam mining, advanced coal seam gas discharge has been widely used. The method used is to drill gas drainage holes on the coal wall. Because the coal seam is very dry, dust is flying when drilling, and the working environment is smoky. Workers must wear dust masks. Even so, it has caused great harm to ...

AI Technical Summary

Problems solved by technology

In order to reduce the gas content during coal seam mining, advanced coal seam gas discharge has been widely used. The method used is to drill gas drainage holes on the coal wall. Because the coal seam is very dry, dust is flying when drilling, and the working environment is smoky. Workers must wear dust masks. Even so, it has caused great harm to the operator's body. The gas emitted during drilling has also brought great safety hazards to the safe production of coal mines.

In many cases, when drilling gas drainage holes on the coal wall, the phenomenon of "spray hole" is often encountered, that is, the high-pressure gas in the coal seam is released in large quantities along the drill hole at the same time as the drill bit is in contact. At this time, ordinary dust collectors cannot withstand the impact of high-pressure airflow.

When the spray hole is serious, it will cause damage to the dust collector, drilling machine and drilling tool

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