High-efficiency pulverized coal burner for dried pulverized coal fluidized bed gasification furnace

A fluidized bed gasifier, dry coal powder technology, applied in the direction of granular/powder fuel gasification, etc., can solve the problem of difficult ignition, achieve stable combustion, prolong service time, and reduce the generation of steam.

Inactive Publication Date: 2014-05-21
杜建吉
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the above-mentioned problems, the object of the present invention is to provide a high-efficiency pulverized coal burner suitable for dry coal powder, which can rely on its own structure to gather the sprayed dry coal powder into bundles, and simultaneo

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  • High-efficiency pulverized coal burner for dried pulverized coal fluidized bed gasification furnace
  • High-efficiency pulverized coal burner for dried pulverized coal fluidized bed gasification furnace
  • High-efficiency pulverized coal burner for dried pulverized coal fluidized bed gasification furnace

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[0018] In order to facilitate the understanding of the technical content of the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings.

[0019] like Figure 1 to Figure 5 As shown, a high-efficiency pulverized coal burner of a dry pulverized coal fluidized bed gasifier includes an outer annular body 1 and an inner annular body 2 arranged coaxially.

[0020] The front end of the outer annular body 1 is an open end. The outer annular body 1 includes an outer wall 11 , an intermediate spacer layer 12 of annular structure, and an inner wall 13 . The wall body (ie the part between the outer wall 11 and the inner wall 13 ) is divided into an outer annular channel 14 and an inner annular channel 15 whose front ends communicate with each other, which constitute the inlet and outlet cavities of the outer cooling jacket.

[0021] The front end of the outer wall 11 is inclined radially outward from th...

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Abstract

The invention discloses a high-efficiency pulverized coal burner for a dried pulverized coal fluidized bed gasification furnace. The high-efficiency pulverized coal burner comprises a pulverized coal annular channel and a pulverized coal hydrocyclone arranged in the pulverized coal annular channel, a center channel and an oxygen hydrocyclone arranged at the front end of the center channel, wherein cavity ducts in the front end of the pulverized coal annular channel and the front end of the center channel are both of a necking-down structure, dried pulverized coal and oxygen are respectively rotated and accelerated in a conveying process so as to be fully mixed and contacted within a short time and a distance range in a rotational flow manner, so that the dried pulverized coal is easily ignited and uniformly combusted; in addition, the high-efficiency pulverized coal burner is small in abrasion and long in service life.

Description

technical field [0001] The invention relates to a coal powder burner for a gasification furnace, in particular to a high-efficiency coal powder burner for a dry coal powder fluidized bed gasification furnace. Background technique [0002] With the increasing shortage of global oil resources, the practical status of coal resources in the chemical industry is becoming more and more important. What follows is that coal gasification is used more and more widely in the chemical industry, and there is a tendency to gradually replace petrochemicals. In the coal chemical industry, the gasifier is the key point in the coal chemical industry, and in the gasifier, the burner is an important part of the gasifier. The pulverized coal burner is a process burner, which is a load burner used when the ignition burner is ignited and the furnace temperature is raised to a predetermined temperature. The pulverized coal channel of the existing pulverized coal burner is a direct-flow channel, a...

Claims

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Application Information

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IPC IPC(8): C10J3/56
Inventor 杜建吉
Owner 杜建吉
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