Reacting cycle type single drill bit pneumatic down-hole hammer rotary digging environmental protection direct discharge device
A single drill bit and down-the-hole hammer technology, which is applied to the driving device, drill pipe, and drill pipe for drilling in the wellbore, and can solve the problems of large airflow, dust, environmental pollution, etc.
Pending Publication Date: 2018-10-02
东莞伊思美制衣有限公司
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Problems solved by technology
[0005] In the prior art, the positive circulation pneumatic down-the-hole hammer is generally used for drilling. The compressed gas passes through the air intake channel on the drill pipe to the down-the-hole hammer. The gas drives the down-the-hole hammer to drill, and the exhaust gas is discharged from the down-the-hole hammer The air hole is discharged, and the exhaust gas discharges the rock slag from the annular gap formed by the hole wall and the outer wall of the drill pipe to the ground surface, which is generally called positive circulation drilling. Pollution; especially in cities where construction has a large impact
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[0042] The present invention will be further described below in conjunction with the accompanying drawings.
[0043] Such as Figure 1 to Figure 3 As shown, a reverse circulation single-bit pneumatic down-the-hole hammer rotary digging environmental protection in-line device according to the present invention includes a shock-absorbing air intake swivel device 502, an outer casing 503, an upper flange 504 with holes for slag discharge, Gun barrel 505, lower flange 506 for slag discharge with holes, drill bit 507, front joint 508 and hexagonal rear joint 509, the shock-absorbing air intake swivel device 502 is provided with a jacket air inlet 5021, and the jacket air inlet 5021 is connected with the air pressure The air pipe of the machine is connected; one opening end of the outer casing 503 is fixedly connected with the upper flange 504 for slag discharge with holes, and the other open end of the outer casing 503 is fixedly connected with the lower flange 506 for slag dischar...
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The invention relates to the technical field of drilling machines in the construction engineering industry, in particular to a reacting cycle type single drill bit pneumatic down-hole hammer rotary digging environmental protection direct discharge device. The device comprises a shock-absorber type air inlet revolving device, the shock-absorber type air inlet revolving device is provided with an outer-sleeving air inlet, an air inlet slag discharge drilling rod and a slag discharge upper flange with holes are separately connected with both ends of an outer sealing pipe, the shock-absorber typeair inlet revolving device is arranged in an inner cavity of the outer sealing pipe, and an upper inner cavity is formed in the air inlet slag discharge drilling rod, the outer sealing pipe, the shock-absorber type air inlet revolving device and the slag discharge upper flange with holes. The air inlet slag discharge drilling rod comprises at least one slag pipe and at least one air pipe, one endof the slag pipe communicates with a top slag discharge device, one end of the air pipe communicates with an top air inlet device, the other end of the slag pipe communicates with the upper inner cavity, and the other end of the air pipe communicates with the outer-sleeving air inlet through a communicating pipe. A reacting cycle slag discharge system is integrally formed in the device in the using process; and the device can solve the problem that air flow demand is not high, and is free from environmental pollution.
Description
technical field [0001] The invention relates to the technical field of drilling rigs in the construction engineering industry, in particular to a reverse circulation type single-drill-bit pneumatic down-the-hole hammer rotary digging environmental protection in-line device. Background technique [0002] Drilling with a "pneumatic down-the-hole hammer" and drilling with a "rotary excavator" are two different pile equipment and construction methods in the construction industry. "Pneumatic down-the-hole hammer" is a construction tool for hole-forming operations in building foundation engineering, and "rotary excavator" is a construction machine for hole-forming operations in building foundation projects. [0003] "Pneumatic down-the-hole hammer" is a combination of pneumatic impactor and drill bit. It is a construction tool for building foundation projects and is mainly configured on ordinary drilling rigs. It uses compressed air as power to drive the down-the-hole hammer to w...
Claims
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IPC IPC(8): E21B4/14E21B21/16E21B21/12E21B17/18E21B17/04
CPCE21B4/14E21B17/04E21B17/18E21B21/12E21B21/16
Inventor 唐少杰
Owner 东莞伊思美制衣有限公司