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
CN109779687AActive Publication Date: 2019-05-21HENAN POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
HENAN POLYTECHNIC UNIV
Publication Date
2019-05-21

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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.
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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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