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Uniform pulverized-coal distribution device

A technology for conveying pulverized coal and pulverized coal is applied in the field of pulverized coal uniform distribution devices, which can solve the problems of partial burning, uneven flame distribution, poor distribution uniformity, etc., to avoid partial partial burning, improve distribution uniformity, and stabilize the combustion process. Effect

Inactive Publication Date: 2016-10-26
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of pulverized coal burner is relatively poor for the transportation of pulverized coal and the distribution uniformity at the outlet. , so that the combustion process will have a partial burning problem due to the uneven distribution of coal powder, that is, the flame distribution around the entire burner outlet is uneven, some oxygen is too high, and some oxygen is too low

Method used

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  • Uniform pulverized-coal distribution device

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Embodiment Construction

[0021] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0022] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] figure 1 It is a structural diagram of a pulverized coal distribution device according to an embodiment of the present invention. Such as figure 1 As shown, the pulverized coal distribution device 100 is arranged at the head of the burner, which mainly includes: an oxygen delivery pipe 1 ...

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Abstract

The invention discloses a uniform pulverized-coal distribution device. The uniform pulverized-coal distribution device is arranged at the head portion of a nozzle and comprises an oxygen delivery pipe, multiple pulverized-coal delivery pipes fixed to the outer circumferential surface of the oxygen delivery pipe and a cooling device arranged around the multiple pulverized-coal delivery pipes, wherein a gradually shrunk guide channel is formed in the inner side in the pulverized coal output direction and at the outlet position of the oxygen delivery pipe. The uniform pulverized-coal distribution device further comprises multiple distribution ribs arranged between the pulverized-coal delivery pipes and the guide channel, wherein each distribution rib is of a spiral rib structure and is fixed to the outer circumferential surface of the oxygen delivery pipe, and multiple spiral channels are formed among the multiple distribution ribs. The uniform pulverized-coal distribution device has the advantages that the pulverized-coal distribution uniformity at the outlet position of the nozzle is improved, the pulverized-coal combustion process can be more stable, and accordingly the problem of local deviant combustion is avoided.

Description

technical field [0001] The invention relates to a device for evenly distributing pulverized coal. Background technique [0002] In recent years, the development of coal chemical industry, the development and promotion of clean coal technology is the main direction of our country to solve the efficient utilization of coal and reduce environmental pollution. The coal gasification burner is the key equipment of the coal chemical gasification device, and the transportation of pulverized coal will directly affect the combustion effect of the burner. A single pulverized coal pipeline directly leads to the burner of the furnace, so that the distribution of pulverized coal at the outlet is uneven, and high-speed pure oxygen flows outside the pulverized coal pipeline. This arrangement of pure oxygen outside the pulverized coal inside is commonly known as "wind wrapped coal". However, this kind of burner is equipped with a layer of cooling device outside the oxygen channel to protect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/50
CPCC10J3/50C10J2200/15
Inventor 苏毅赵子通刘思远周威张世程朱国庆
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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