Coal mine drilling and dust removal device

Abstract

The invention relates to a coal mine drilling and dust removal device comprising a drill rod. A buried pipe is arranged outside the drill rod, a dust collection hood is arranged outside the buried pipe, a lower outlet is arranged in the lower portion of the dust collection hood, and an annular air-compression air knife is arranged at the center of the outer end of the dust collection hood; clamp plates are arranged at the center of the dust collection hood; baffles are arranged in the clamp plates; a round hole is arranged at the center of each clamp plate; baffle grooves are arranged at junctions of the baffles and the drill rod, and tension springs are arranged at two ends of each clamp plate passage; end caps are arranged at two ends of each clamp plate passage, a stay wire outlet is arranged in each end cap, and a stay wire is arranged in each stay wire outlet; a cloth bag and a spraying nozzle are arranged at the lower end of the lower outlet, and a funnel net and a conical net are arranged at the lower end of the spraying nozzle. The coal mine drilling and dust removal device is ingenious in design and simple in structure, can enable the drill rod entering end of the dust collection hood to be airtight, block dust and gas from leaking out, purify drilling cuttings and dust before the drilling cuttings and dust fall to the ground and dilute the gas to prevent the gas from exceeding limits, is a revolutionary innovation of the prior art and has high marketing value.

Description

technical field [0001] The invention relates to a tool used in the drilling industry, in particular to a coal mine drilling dust removal device. Background technique [0002] In the drilling industry, triangular drill pipes are widely used in the industry due to the fast discharge of cuttings when drilling with triangular drill pipes. But at the same time there are new problems restricting the development of drilling operations in coal mines. The triangular drill rod cannot be sealed with the dust cover when rotating, and the triangular drill rod swings back and forth during work, so coal dust and gas gas cannot be diverted to an ideal position. At present, leather sleeves are generally used in the industry to drain water on drill pipes. Although the gas and dust problems have been temporarily alleviated, there is still a big gap between the requirements of the industry's quality standards. If the problem of gas and coal dust exceeding the limit caused by the injection hol...

AI Technical Summary

Problems solved by technology

But at the same time, there are new problems restricting the development of coal mine drilling operations

The triangular drill pipe cannot be sealed with the dust cover when it is rotating, and the triangular drill pipe swings back and forth during operation, so coal dust and gas cannot be drained to the ideal position

At present, leather sleeves are generally used in the industry to drain water on drill pipes. Although the gas and dust problems have been temporarily alleviated, there is still a big gap between the requirements of the industry's quality standards.

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