Method and device for identifying rock property of coal mine roadway roof
A technology for coal mine tunnels and rocks, which is applied in the field of coal mining to achieve the effects of protecting life and property safety, simple operation, and saving manpower and material resources
Pending Publication Date: 2019-09-10
于广东
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Problems solved by technology
[0004] Aiming at the problems stated in the above-mentioned background technology, the technical problem to be solved by the present invention is to provide a method and device for identifying the rock properties of the coal mine roadway roof, which solves the technical problem of rapid prediction of the roadway roof lithology in coal mining
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[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0038] according to Figure 1-4 As shown, as embodiment 1: a device for identifying the rock properties of the coal mine roadway roof, including torque and speed sensors, displacement sensors, force sensors, bolters, PDC drill bits, drill pipes and controllers.
[0039] One end of the displacement sensor is fixed on the tail of the outrigger of the bolter, the other end is fixed on the upper part of the outrigger of the bolter, the controller is fixed on the upper part of the outrigger of ...
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The invention provides a method and device for identifying rock property of a coal mine roadway roof. The device comprises a torque and speed sensor, a displacement sensor, a force sensor, a roof bolter, a PDC drilling bit, a drilling rod and a controller; rock is crushed through the PDC drilling bit, then data of the torque and speed sensor, the displacement sensor and the force sensor are obtained, and imported to a formula to obtain energy required for drilling a rock drilling hole per unit volume, parameters when the rock is drilled are detected by the torque and speed sensor, the displacement sensor and the force sensor through the measuring device to judge the uniaxial compressive strength of the rock, the thickness of a corresponding roof layer rock soft rock strata is identified, the measuring device is directly mounted on a pneumatic roof bolter drilling machine and connected with the drilling rod, the operation is simple, using is convenient, whether a soft rock strata potential hazard exists in the roof or not can be effectively identified before the roof is supported, a large amount of manpower and resources can be saved, and life and property security of people is protected to the maximum extent.
Description
technical field [0001] The invention relates to the technical field of coal mining, in particular to a method and device for identifying the rock properties of coal mine roadway roofs used for identifying and judging the properties of weak interlayers in coal mines during the mining process of coal resources. Background technique [0002] Coal is the basic energy of our country. In recent years, driven by the rapid development of the national economy, my country's coal production and sales have shown a momentum of rapid growth. In the process of coal mining, it is necessary to pay for the roadway roof to ensure the safety of underground operators and equipment Therefore, in coal mining, it is very important to identify the rock properties of the roof of the coal mine roadway. If the lithology of the roof cannot be detected in time, the design of the roadway support cannot be changed in time with the change of the roof lithology. In the existing technology, there are often The ...
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IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 于广东孟宏君
Owner 于广东