Wind-water linkage spray reducing and slag discharging device for coal seam drilling

By designing a Fengshui-linked spraying and discharge device for coal seam drilling, the problems of hole blocking, spraying and dust in conventional slag discharge technology are solved, and a safer and more efficient underground construction environment for coal mines is achieved.

CN222686722UActive Publication Date: 2025-03-28HUNAN GAS CONTROL & UTILIZATION ENG RES CENT CO LTD +2
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Patent Information

Application Number
CN202421549292.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-03-28
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

During the underground construction of coal mines, conventional water slag discharge and wind slag discharge have problems such as blocking holes, aggravating spray holes, dust, and ignition in the holes, affecting production safety.

Method used

A Fengshui linked spraying and slag discharge device for coal seam drilling is designed. The water volume entering the Fengshui mixer is adjusted through the water volume regulating valve, and combined with the high-pressure air impact of the air duct to form an atomization effect, avoiding the use of spray heads and gas one-way flow control valves.

Benefits of technology

It realizes simplified structure and operation, reduces the frequency and strength of spray holes, reduces dust production, improves the working environment, and effectively prevents increased drill bit temperature and ignition in the hole.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of coal seam drilling, and discloses an air-water linkage spray-reducing deslagging device for coal seam drilling, which comprises a water pipe and an air pipe, a water pressure gauge, a pneumatic ball valve, a water regulating valve and a flow meter are sequentially arranged on the water pipe; a barometer, a pneumatic angle valve and an air-water mixer are sequentially arranged on the air pipe; a straight-through necking cavity is arranged in the air-water mixer, one end of the straight-through necking cavity is connected with the air pipe, the other end of the straight-through necking cavity is connected with the air-water mixing outlet, a small water inlet hole communicated with the necking cavity is formed in the side wall of the air-water mixer, a connector is arranged on the small water inlet hole, and a water outlet of the flowmeter is connected with the connector through a pipeline. The water quantity adjusting valve is used for adjusting the quantity of water entering the air-water mixer, small-flow water enters through high-pressure air impact of the air pipe to form an atomization effect, the atomization mode is simple in structure, the atomization effect is convenient to adjust, and a spray head and a gas one-way flow control valve do not need to be arranged.
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