At-line coal quality analyzing system
A technology for coal quality analysis and coal quality, which is applied in analyzing materials, using wave/particle radiation for material analysis, and using microwaves to test moisture content. To ensure the accuracy of coal quality measurement and facilitate the comparison and calibration of instruments
Inactive Publication Date: 2019-03-22
SHANXI JINMEI GRP TECH RESEACH INST
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Problems solved by technology
The off-line method is to send the sample to the sample preparation room for sample preparation, and then analyze it. This method takes less samples, has poor real-time performance, and cannot give timely feedback on the coal quality; the online analysis instrument is directly installed on the coal conveyor belt conveyor, because the coal flow rate on the belt conveyor Faster, uneven particle size, unstable coal flow section, resulting in low online coal quality measurement accuracy
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[0010] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention.
[0011] refer to figure 1 , figure 1 It is a structural schematic diagram of a side-line coal quality analysis system provided by the present invention, including: a mechanized sample sampling system, a coal quality analysis subsystem and a control subsystem; wherein, the mechanized sample preparation system includes a primary sampler, a transfer belt conveyor machine, crusher, storage bin, coal flow control and shaping device, measuring belt conveyor, bucket elevator, rotary shrinking device and sample collector; the coal quality analysis subsystem includes low-energy double gamma ray ash analyzer and microwave moisture instrument; the control system includes a power dist...
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Abstract
The invention relates to an at-line coal quality analyzing system. The at-line coal quality analyzing system is realized by a mechanical sampling system, a microwave moisture analyzer, and a low-energy double-gamma ray ash analyzer. The at-line coal quality analyzing system is characterized in that the coal is sampled from a coal belt conveyor according to the setting cycle; the coal is conveyed,crushed and mixed, and then is sent into a temporary storage bin; the coal flow with stable cross section is formed by a material flow control system and a shaping device; the ash, moisture and calorific value of the coal are measured on a miniature belt conveyor, so as to timely control the data of coal quality. Compared with the online analyzing type of directly installing the ash analyzer and the water analyzer on the coal belt conveyor, the at-line coal quality analyzing system has the advantages that by adopting the technology, the measuring precision of the coal quality analysis is improved; compared with the offline analyzing type, the coal quality can be timely controlled; by analyzing the coal quality of fine coal on two coal conveying belts on line, the ash, moisture and calorific value of the coal can be monitored in real time, the coal dressing equipment can be timely adjusted, the stability of coal quality in a product bin is guaranteed, the mechanical sampling effect of the coal conveying belts is realized, and the sample can be collected for analyzing and storing.
Description
technical field [0001] The invention relates to the field of coal quality detection, in particular to a sideline coal quality analysis system. Background technique [0002] As we all know, in coal mines, coal washing plants, power plants and other units, it is necessary to grasp the coal quality of the coal on the belt conveyor in time, so as to adjust the production equipment in time, which requires timely detection of the coal quality of the coal on the belt conveyor. Currently, there are two commonly used methods, one is offline analysis of sampling, and the other is online analysis of coal quality. The off-line method is to send the sample to the sample preparation room for sample preparation, and then analyze it. This method takes less samples, has poor real-time performance, and cannot give timely feedback on the coal quality; the online analysis instrument is directly installed on the coal conveying belt conveyor, because the coal flow speed on the belt conveyor Fast...
Claims
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IPC IPC(8): G01N22/04G01N23/00G01N1/28
CPCG01N1/286G01N22/04G01N23/00
Inventor 时进吉张兆宇秦天兵程青霞
Owner SHANXI JINMEI GRP TECH RESEACH INST