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Integrated implementation technique for preparing clean coal from lignite and comprehensively utilizing lignite

A lignite and clean technology, applied in solid fuels, manufacturing tools, ceramic molding machines, etc., can solve problems such as pollution, high cost, and labor intensity, and achieve the effects of reducing environmental pollution, compact structure, and reducing waste of resources

Inactive Publication Date: 2010-10-20
SHAANXI ZHONGSHI COAL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the existing upgrading technology and equipment, lignite can only be upgraded step by step and dumped multiple times, which brings disadvantages such as high cost, high labor intensity, and serious pollution.

Method used

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  • Integrated implementation technique for preparing clean coal from lignite and comprehensively utilizing lignite
  • Integrated implementation technique for preparing clean coal from lignite and comprehensively utilizing lignite

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Embodiment Construction

[0008] Describe an embodiment of the present invention below in conjunction with accompanying drawing.

[0009] This embodiment is mainly composed of coal preparation system I, dehydration and drying system II, gangue removal / coal preparation system III, storage system IV, and associated / waste recycling system V.

[0010] Coal preparation system I is mainly composed of raw coal feeding / rough selection equipment 1, raw coal conveying equipment 2-1, raw coal screening equipment 3, raw coal conveying equipment 2-2, and raw coal crushing equipment 4.

[0011] Its working process is as follows: After the raw coal passes through the feeding / rough selection equipment 1 to remove the extra-large raw coal that does not meet the requirements, it enters the raw coal screening equipment 3 for sorting, and the raw coal that meets the processing requirements is directly passed through the raw coal conveying equipment. 2-1 is sent to the "dehydration drying system", and the raw coal whose vo...

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Abstract

The invention relates to a technique for deep processing and comprehensive utilization of lignite. In the technique, a coal preparation system, a dehydrating and drying system, a gangue removing and coal dressing system, a storage system and an accompanying and waste recycling system are provided; the five relatively independent systems are tightly connected to jointly form an integrated production line; the quality of poor-quality lignite is improved at one time through continuous and cooperative work to form clean coal with high combustion value; and the waste is comprehensively utilized and the pollution is greatly reduced.

Description

technical field [0001] The invention relates to a technique for deep processing and comprehensive utilization of lignite. Background technique [0002] At present, most of the techniques and equipment for lignite upgrading are single-time dehydration and upgrading of raw coal (brignite), or the method of coal washing and separation and dry winnowing is used for coal preparation and dehydration of lignite. gangue treatment. Due to the existing upgrading technology and equipment, lignite can only be upgraded step by step and dumped multiple times, which brings disadvantages such as high cost, high labor intensity, and serious pollution. Contents of the invention [0003] The object of the present invention is to provide a method that can not only carry out coal preparation (sorting, crushing, etc.), dehydration, gangue removal, and coal preparation for lignite at one time, but also can synchronize the associated and waste generated in the production process. Methods of rec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/00C10L5/00B28B1/00
Inventor 胡晓旭王卫国刘峰马保国
Owner SHAANXI ZHONGSHI COAL CHEM