Rock gangway non-explosive exploiting process and rock gangway non-explosive exploiting equipment
A rock roadway and process technology, applied in the field of rock roadway development technology, can solve the problems of long working hours, damage to equipment, and injury to workers, and achieve the effects of safe development, simplified operation process, and improved safety
Inactive Publication Date: 2016-01-20
CHINA UNIV OF MINING & TECH
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Problems solved by technology
[0002] At present, blast mining is mostly used in rock roadway development or tunnel excavation, that is, drilling, placing explosives, and blasting. There are two main problems in this method: one is that it takes a long time to work. 70% of the working time; the second is that the safety is poor, and workers are injured and equipment is damaged during the blasting process.
Moreover, the current coal situation is relatively poor, how to reduce the cost of roadway development and improve efficiency has become one of the key technical issues to be solved urgently
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[0020] The present invention will be further explained below in conjunction with the accompanying drawings.
[0021] Such as figure 1 with 4 As shown, a kind of rock roadway of the present invention does not have gun development technology and comprises the following steps:
[0022] (1) Grooving: Use drilling rig 1-1 to intensively drill holes at the bottom of the front section of the roadway to break the rock and form a grooved area. In this step, there is no requirement for the height of the intensive drilling, and the depth must reach 1200mm, which is cracked rock provide a free surface;
[0023] (2) Expansion cracking: use drilling rig 1-1 to drill multiple rows of first expansion crack holes 4 uniformly distributed along the horizontal direction on the front section of the roadway above the slotting area from bottom to top, and then drill a row of first expansion holes 4 along the roadway at the top of the roadway. The second expansion crack hole 5 evenly distributed o...
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The invention discloses a rock gangway non-explosive exploiting process and rock gangway non-explosive exploiting equipment. The process comprises the steps of slotting, rake rock expansion cracking and rock conveying. The equipment comprises a drill loader, a hydraulic expansion cracking system and a belt conveyor, wherein a drilling machine, a rock loading mechanism and a rock conveying mechanism are arranged on the drill loader; the bottom of the drill loader is provided with a walking mechanism; an impact mechanism is arranged on the drilling machine; the drilling machine is symmetrically arranged at two sides of the front end of the rock loading machine; the feeding end of the rock conveying mechanism is opposite to the tail end of the rock loading mechanism; the discharge end of the rock conveying mechanism is connected with the feeding end of the belt conveyor; the hydraulic expansion cracking system comprises a high-pressure pump station and an expansion cracking device; the output end of the high-voltage pump station is provided with a pressure regulating valve; the pressure regulating valve is connected with a plurality of expansion cracking devices through a high-pressure pipeline; and a plurality of hydraulic pistons are arranged on the expansion cracking devices. The process can realize the fast and safe exploiting of the gangway, and can reduce the explosive cost. The equipment has the advantages that the work mode that the drill loader, the expansion cracking devices and the belt conveyor are matched is adopted; the operation process is simplified; the work time is reduced; and the safety is improved.
Description
technical field [0001] The invention relates to a rock roadway development process, in particular to a rock roadway or tunnel development process and equipment suitable for rock hardness greater than 120 MPad. Background technique [0002] At present, blast mining is mostly used in rock roadway development or tunnel excavation, that is, drilling, placing explosives, and blasting. There are two main problems in this method: one is that it takes a long time to work. 70% of working hours; the 2nd, safety is relatively poor, and the situation of blasting and injuring workers and damaging equipment takes place during blast mining process. Moreover, the current coal situation is relatively poor, how to reduce the cost of roadway development and improve efficiency has become one of the key technical issues to be solved urgently. Contents of the invention [0003] Purpose of the invention: The purpose of the invention is to overcome the deficiencies in the prior art and provide a...
Claims
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Inventor 刘送永姬会福杜长龙崔新霞江红祥刘增辉沈刚唐玮
Owner CHINA UNIV OF MINING & TECH