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Cylindrical material-issuing tank of a plurality of air distributors and material-issuing tubes and multi-path material-issuing method thereof

A cylindrical and discharge pipe technology is applied in the fields of clean coal combustion power generation and coal chemical industry, which can solve the problems of low space utilization rate of conical feeding tank and coal powder bridging, saving installation space and high space utilization rate. , The effect of simplifying the multi-channel coal supply system

Inactive Publication Date: 2009-09-30
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The space utilization rate of the conical delivery tank is low, and it is easy to cause the pulverized coal to bridge in the tank due to the continuous reduction of the flow cross section

Method used

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  • Cylindrical material-issuing tank of a plurality of air distributors and material-issuing tubes and multi-path material-issuing method thereof
  • Cylindrical material-issuing tank of a plurality of air distributors and material-issuing tubes and multi-path material-issuing method thereof
  • Cylindrical material-issuing tank of a plurality of air distributors and material-issuing tubes and multi-path material-issuing method thereof

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Embodiment Construction

[0016] The cylindrical material delivery tank device of the present invention consists of a cylindrical material tank body 1, a fluidized air duct 2, an air distribution plate 3, a discharge pipe 4, a pressurized air pipe 5, a supplementary air pipe 6, a discharge control valve 7, The coal drop port 8 is formed. Multiple fluidization air ducts are arranged at the bottom of the material tank, and each fluidization air duct is equipped with a fluidization air duct valve 9 . The fluidized air pipe is connected with the separated air chambers at the bottom of the material tank, and above the air chambers is a group of flat-bottomed conical air distribution plates. One air distribution plate corresponds to one fluidized air duct and a discharge pipe is arranged above each air distribution plate, and each discharge pipe is equipped with a discharge control valve. The charging air duct is arranged above the material tank, and the supplementary air duct is arranged at the outlet of e...

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Abstract

The invention relates to a cylindrical material-issuing tank of a plurality of air distributors and material-issuing tubes and a multi-path material-issuing method thereof and relates to the pressurization gasification of large-scale dry coal powder and a coal powder delivery system of an IGCC generating technology. The invention adopts the cylindrical material-issuing tank with a plurality of independent air distributors arranged at the bottom of the material-issuing tank, each air distributor corresponds to a path of fluidization air tube and a material-issuing tube to realize the multi-path delivery of coal powder; fluidization air from an air storage tank enters the material-issuing tank from the bottom by each fluidization air tube to fluidize the coal powder on each air distributor, pressurized air is used for maintaining the pressure stability of the material-issuing tank, and supplementary air is used for adjusting a solid-air ration in a delivery tube to ensure the delivery stability. The invention can utilize the material-issuing tank to realize multi-path delivery, effectively simplifies the multi-path delivery system, prevents a conical material-issuing tank from causing a coal powder bridge phenomenon due to continuously reducing flow cross section, effectively lowers the height of the material-issuing tank and improves the space utilization rate of the material-issuing tank.

Description

technical field [0001] The invention relates to a large-scale dry coal pulverized pressurized gasification and a pulverized coal conveying system of IGCC power generation technology, belonging to the fields of clean coal combustion power generation and coal chemical industry. Background technique [0002] Pressurized dense-phase conveying of dry coal powder is one of the key technologies for dry coal powder entrained gasification. In the dry coal pulverized entrained bed pressurized gasification device, the pulverized coal is sent into the gasifier by high-pressure gas. The larger the solid-gas ratio of the coal supply system, the less the transport gas required under the same coal delivery volume, which saves the transport medium and improves the gas quality. Generally, the dry coal pulverized entrained bed pressurized gasification device adopts a dense phase transport coal supply system . [0003] The coal supply systems of various foreign dry coal pressurized gasificati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G53/22B65G53/34B65G53/40B65G53/58C10J3/46F23K3/02
CPCY02E20/18
Inventor 陈晓平周云梁财赵长遂
Owner SOUTHEAST UNIV
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