Pulverized coal preparation system and pulverized coal preparation method

A pulverized coal preparation and pulverized coal technology, applied in the direction of block/powder fuel preparation, combustion methods, combustion equipment, etc., to achieve the effects of reducing floor space, improving safety, and improving working environment

Inactive Publication Date: 2016-06-01
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In view of the defects in the prior art, the purpose of the present invention is to provide a pulverized coal preparation system to solve the problems of clean production and improve system safety in the existing dry coal powder preparation process

Method used

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  • Pulverized coal preparation system and pulverized coal preparation method
  • Pulverized coal preparation system and pulverized coal preparation method
  • Pulverized coal preparation system and pulverized coal preparation method

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Embodiment Construction

[0039] Attached below figure 1 Specific examples illustrate the present invention in detail. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0040]A pulverized coal preparation system, comprising a raw coal screening hopper 1, a raw coal conveying device 2, a heat source device 3, a drying device 4, a hoist 5, a pulverizing device 6, a powder collector 7, a blower 8, a bag filter 11, The induced draft fan 12, the powder conveying device A14, the powder conveying device B15, the powder conveying device C16 and the powder storage bin 17, the raw coal screening hopper 1 sends the coal to the drying device 4 through the raw coal conveying device, the flue gas outlet port of the heat source device 3 It is connected to the inlet end of the flue gas of the drying device 4, the outlet end of the dry raw ma...

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Abstract

The invention discloses a pulverized coal preparation system and a pulverized coal preparation method. The pulverized coal preparation system comprises a heat source device, a drying device, a pulverizing device, a powder colleting implement, an air blower, a bag-type dust collector and an induced draft fan. The smoke outlet end of the drying device is connected with the smoke inlet end of the bag-type dust collector. The smoke outlet end of the bag-type dust collector is connected with the induced draft fan. Dry raw materials of the drying device are fed into the pulverizing device. a closed grinding circulatory system is formed among the pulverizing device, the powder colleting implement and the air blower. The pulverized coal preparation system further comprises a balance air pipe. The outlet end of the air blower is then connected with the smoke inlet end of the bag-type dust collector through the balance air pipe. According to the pulverized coal preparation system and the pulverized coal preparation method, full negative pressure running of a system air leak position is achieved, and accordingly the purpose of clean production is achieved. The temperature of powder collected by the bag-type dust collector is lowered, and the possibility of powder spontaneous combustion and explosion is reduced, so that the safety performance of the pulverized coal preparation system is significantly improved. Compared with the traditional process, the number of equipment and sites are reduced, and the cost is reduced.

Description

technical field [0001] The invention belongs to the field of powder processing, and relates to a pulverized coal preparation system and a pulverized coal preparation method using raw coal as a raw material. Background technique [0002] Pulverized coal preparation refers to grinding lumpy raw coal into pulverized coal of a certain fineness to provide auxiliary devices necessary for various pulverized coal boilers, heating furnaces, cement kilns, steelmaking blast furnaces, etc. Generally, it is composed of heat source, raw coal conveyor, dryer, coal mill, dust collector, fan, pulverized coal pipeline, air duct, chimney, etc. [0003] As a supporting facility of the pulverized coal combustion system, the pulverized coal pulverization system of regional construction has been rapidly used. Especially in the process of dry pulverized coal preparation and storage, if the pulverized coal is not handled properly during the preparation, storage, and transportation, it will not only...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K1/00
CPCF23K1/00
Inventor 贾明生侯冬尽张乾熙
Owner GUANGDONG OCEAN UNIVERSITY
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