Coal sample preparing, sieving and crushing device

A crushing device and coal sample technology, applied in grain processing, etc., can solve the problems of low screening efficiency, high labor intensity, and serious dust, and achieve the effects of reducing labor costs, small dust, and simplifying manual operations

Active Publication Date: 2020-09-29
贵州华电桐梓发电有限公司
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  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a coal sample preparation, screening and crushing device, which is used to solve the technical problems of high labor intensity, serious dust and low screening efficiency in screening coal samples in power plants

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  • Coal sample preparing, sieving and crushing device
  • Coal sample preparing, sieving and crushing device
  • Coal sample preparing, sieving and crushing device

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Embodiment Construction

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention; the terms used in the specification herein are only for the purpose of describing specific embodiments, and are not intended to To limit the invention, for example, the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top ", "bottom", "inner", "outer" and other indicated orientations or positions are based on the orientations or positions shown in the drawings, which are only for convenience of description and cannot be understood as limitations on the technical solution.

[0028] The terms "include" and "have" in the specification and claims of the present invention and the description of the above drawings, as well as any variations thereof, are intended to cover a non-exclusive inclusion; The terms "first", "second", etc. are used t...

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Abstract

The invention belongs to the technical field of thermal power generation, and relates to a coal sample preparing, sieving and crushing device. The coal sample preparing, sieving and crushing device comprises a discharge mechanism, a sieving mechanism and a crushing mechanism, wherein the discharge mechanism, the sieving mechanism and the crushing mechanism are sequentially arranged from top to bottom; the discharge mechanism is used for collecting a coal sample to be sieved and placing the coal sample to be sieved into the sieving mechanism to sieve; the crushing mechanism is used for crushingthe coal sample sieved by the sieving mechanism; the sieving mechanism comprises a base, a rotary table which is rotatably arranged on the base and a plurality of sieving barrels arranged on the rotary table; the sieving barrels are used for sieving coal samples of different diameters; and each sieving barrel comprises a sieving charge hole, a sieving discharge hole and a sieving part for sievingthe coal sample. Multiple sieving barrels for the coal samples of different diameters are arranged on the rotary table for sieving and crushing the coal samples, so that manual operation is simplified, labor cost is reduced, and coal sample sieving crushing rate is greatly increased.

Description

technical field [0001] The invention relates to the technical field of thermal power generation, in particular to a coal sample preparation, screening and crushing device. Background technique [0002] The incoming coal of the power plant needs to be sampled, and then the collected coal sample is prepared into a 0.2mm powder sample for testing to determine the quality of the incoming coal. In the process of coal sample preparation to 0.2mm, the coal sample needs to go through three stages of 13mm, 6mm, and 3mm. The three stages need to be sieved, and the sieved materials in different stages are broken to ensure that the coal samples corresponding to each stage are homogeneous. Meet the corresponding granularity requirements. At present, most power plants use manual operation of standard sieves to sieve coal samples. After sieving, the oversieves are sent to the crusher with buckets and other containers to be crushed to the corresponding particle size. Most of the time, two ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/14
CPCB02C23/14
Inventor 张元军
Owner 贵州华电桐梓发电有限公司
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