Extraction type automatic pulverized coal collecting and quality measuring device and method
A technology of automatic collection and quality measurement, applied in measuring devices, driving devices for drilling in wellbore, weighing and other directions, it can solve the problem of inability to instantly determine the quality of pulverized coal at the propulsion distance, so as to reduce the residue of pulverized coal and ensure safety. Effect
Active Publication Date: 2021-04-16
SHANDONG UNIV OF SCI & TECH +1
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Problems solved by technology
[0004]
In order to solve the problem that the advancing distance and the quality of pulverized coal cannot be determined immediately during drilling, obtain the average velocity and average concentration of pulverized coal, and accurately measure the quality of pulverized coal, the invention provides an automatic collection and quality measurement of pulverized coal. Device and method, concrete technical scheme is as follows
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[0028] combine Figure 1 to Figure 6 As shown, a kind of extraction type pulverized coal automatic collection and quality determination device and method provided by the present invention are implemented in the following manner.
[0029] A draw-out automatic collection and quality measurement device for pulverized coal, including a drilling mechanism, a pulverized coal collection mechanism, a measurement mechanism and a data processing module. The drilling mechanism realizes the drilling operation, and the pulverized coal collection mechanism and the measurement mechanism cooperate to realize The measurement corresponding to the position of the drill pipe and the effective collection of pulverized coal reduce the error, and the data processing module processes the monitoring data of the measurement mechanism. The drilling mechanism includes a drill bit 1, a drill rod 2, a drive rod 3 and an air motor 5, the air motor 5 drives the drive rod to rotate, the drive rod 3 and the dr...
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The invention provides an extraction type automatic pulverized coal collecting and quality measuring device and method, and relates to the technical field of mining engineering and drilling equipment. The technical problem that the advancing distance and the pulverized coal quality cannot be determined in time during drilling is solved. The device comprises a drilling mechanism, a pulverized coal collecting mechanism, a measuring mechanism and a data processing module; the drilling mechanism achieves drilling through a pneumatic motor; a connecting sleeve of the pulverized coal collecting mechanism sucks pulverized coal into a connecting pipe along a drill rod and collects the pulverized coal into a negative pressure type pulverized coal collector; the measuring mechanism measures the advancing distance and the pulverized coal quality through a position sensor and a microwave solid flowmeter; and an upper computer of the data processing module processes the corresponding relation between the advancing distance of the drill rod and the pulverized coal amount, and displaying and storing are conducted. According to the device, the pulverized coal is measured through Doppler signals, the average speed and the average concentration of the pulverized coal can be obtained, and then the quality of the pulverized coal can be accurately measured. In addition, the device and method further have the beneficial effects of being convenient to use, high in measuring efficiency and the like.
Description
technical field [0001] The invention relates to the technical field of mining engineering and drilling equipment, in particular to a draw-out coal powder automatic collection and quality measurement device, and a method for measuring coal powder in the drilling process by using the device. Background technique [0002] In the process of underground coal mining, with the increase of mining depth, rock burst becomes more and more serious. In order to effectively warn of rockburst disasters, a drilling cuttings monitoring method is proposed in GB / T25217 "Measurement, Monitoring and Prevention of Rockburst". The drilling cuttings method is to drill a hole with a diameter of 42mm into the coal body, and detect the stress concentration and peak value of the coal body according to the size and change law of the powder discharge per unit depth during the drilling process and the dynamic phenomenon during the drilling process and location to determine the hazard level of rock burst ...
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IPC IPC(8): E21B49/00E21B4/02E21B21/16G01G17/04G01D21/02
Inventor 赵同彬张凯任强赵志刚邢明录尹延春
Owner SHANDONG UNIV OF SCI & TECH