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Drilling cuttings amount testing device and method based on pressure sensor

A pressure sensor and testing device technology, which is applied in mining equipment, earthwork drilling, mining equipment, etc., can solve the problems of inaccurate loading and unloading of drilling cuttings, large air flow in the roadway, and long time-consuming, etc., and achieves simple structure, safety and reliability Strong, easy-to-handle effect

Active Publication Date: 2019-05-21
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The process of taking and weighing drill cuttings is cumbersome and takes a long time
In addition, during the drilling process, the air flow in the roadway is too large, and the deformation of the drilling wall in the later stage will lead to inaccurate loading and unloading of drilling cuttings

Method used

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  • Drilling cuttings amount testing device and method based on pressure sensor
  • Drilling cuttings amount testing device and method based on pressure sensor

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Embodiment Construction

[0027] Such as figure 1 and figure 2 As shown, the cuttings amount testing device based on the pressure sensor of the present invention includes a hollow drill rod 1, a drill bit 2, a spiral plate 3, a sliding rheostat 4, a data converter 5 and a display 6, and the drill bit 2 is installed at the front end of the hollow drill rod 1 The outer circle of the hollow drill pipe 1 is provided with at least two helical blades 7 along the axial direction, the number of the helical plates 3 and the helical blades 7 is equal, and each helical plate 3 is correspondingly arranged in parallel on the front side of the front end of each helical blade 7 A number of springs 8 are arranged between the rear side of the spiral plate 3 and the spiral blade 7, and the front end of the hollow drill rod 1 is provided with a first guide hole that is transparent inside and outside along the radial direction, and the spiral blade 7 is provided with a 3 The second guide hole corresponding to the rear s...

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Abstract

The invention discloses a drilling cuttings amount testing device based on a pressure sensor. The device comprises a hollow drill rod, a drill bit, spiral plates, a slide rheostat, a data converter and a display, the spiral plates are correspondingly arranged on the front sides of the front ends of spiral blades in parallel, a plurality of springs are arranged between the rear side faces of the spiral plates and the spiral blades, and L-shaped connecting rods are fixedly connected to the rear side faces of the spiral blades. The slide rheostat is arranged in the hollow drill rod and positionedon the rear side of the L-shaped connecting rod. One end, inside the hollow drill rod, of each L-shaped connecting rod is connected with a sliding piece of the slide rheostat through a driving rod, abinding post of the sliding rheostat is connected with the data converter through an electric wire, the data converter is connected with the display through a control line, and a power switch and a node button are arranged on the display. The invention further discloses a testing method of the drilling cutting amount testing device based on the pressure sensor. The device is scientific in principle, simple in structure, convenient to operate, high in safety and reliability, capable of conducting testing in real time and high in testing data accuracy.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety mining, and in particular relates to a pressure sensor-based drilling cuttings amount testing device and method. Background technique [0002] Coal and gas outburst is an abnormal dynamic phenomenon in which broken coal, rock and gas are suddenly thrown from the coal body or rock body to the mining space under the joint action of in-situ stress and gas. Disasters seriously threaten the safe production of coal mines and are extremely destructive. [0003] Scientific and accurate coal and gas outburst prediction is the premise and key to guide the reasonable and effective implementation of coal and gas outburst prevention and control measures. Therefore, coal and gas outburst prediction has great practical significance. The amount of cuttings has been widely used in predicting the risk of coal and gas outburst in recent years. [0004] The process of taking and weighing drill cuttings is ...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21F17/00
Inventor 刘军陈向军单文娟王兆丰袁军伟王林陈立伟李宁
Owner HENAN POLYTECHNIC UNIV
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