A high-precision intelligent portable coal mine gas outburst predictor

Abstract

The invention discloses a high-precision intelligent portable coal mine gas outburst predictor, which solves the problem that when pulverized coal is extracted, it is necessary to manually press the traditional mechanical watch to obtain time parameters, and there are human errors in artificially inputting the time parameters into the gas outburst predictor. question. The present invention includes a pressure sensor that sends a pressure state signal after obtaining a pressure rise signal, a processing unit that sends an opening signal and a timing signal after receiving the pressure state signal, and a solenoid valve that opens the first straight hole after obtaining the opening signal, obtains the timing signal and completes the process. A timer that sends a timing completion signal after timing, a processing unit that sends a closing control signal after obtaining the timing completion signal, and a solenoid valve that closes the first straight hole after obtaining the closing signal; the pressure sensor is arranged in the air chamber. The invention has the advantages of improving the measurement time precision, no downhole condition limitation when detecting the air tightness of the gas chamber, and the like.

Description

technical field [0001] The invention relates to coal mine gas outburst detection, in particular to a high-precision intelligent portable coal mine gas outburst predictor. Background technique [0002] As a high-energy and clean energy, gas in coal mining area has been paid more and more attention by many countries in the world for its exploration, development and utilization technology. my country has a long history of coal mining, and there are a large number of closed goafs or abandoned mines. The gas drainage technology in goafs can make full use of the pressure relief and permeability enhancement effect of coal seam mining, avoid the period of violent rock formation, and realize ground well drainage. Maximize mining life. Coal is an important basic energy and material in our country and has made great contributions to the national economy. In the past 10 years, gas accidents have accounted for nearly 60% of major accidents in coal mines. Gas accidents are one of the ma...

AI Technical Summary

Problems solved by technology

(Existing problems include: cumbersome operation, high meticulous requirements for personnel, and increased possibility of measurement failure

[0004] Because the pulverized coal is mined, the gas will be released immediately, so it is necessary to record the period from the pulverized coal mining to the start of the measurement. In addition, the period from the start of the measurement to the end of the measurement also needs to be recorded. The specific measurement steps in the prior art are: pulverized coal When harvesting, manually press the timing button of the traditional mechanical watch to record this time as T1. Under normal circumstances, the air chamber and the external atmospheric pressure are also consistent when the cover is opened. When the air chamber is consistent with the external atmospheric pressure, press the traditional mechanical watch again. Press the button to record this moment as T2, press the timing button of the traditional mechanical watch again when the measurement of the gas content in the pulverized coal is completed, and record this moment as T3, and finally the staff will input the parameters T2-T1 and T3-T2 to the gas outburst predictor ;Manually press the traditional mechanical watch three times to obtain the time parameters, and artificially input the time parameters into the gas outburst predictor, there are human errors

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