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Ignition method of integrated CWS (coal water slurry) process burner

A process burner and coal-water slurry technology, which is applied in the direction of gasification process, petroleum industry, and combustible gas manufacturing, can solve the problem of coal-water slurry process burner ablation and affect the working performance and service life of the coal-water slurry process burner and other issues to achieve the effect of improving safety, improving integration, and simplifying ignition procedures

Inactive Publication Date: 2016-06-15
XIAN AEROSPACE SOURCE POWER ENG CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, although there is an integrated coal-water slurry process burner that uses the coal slurry channel and oxygen channel of the coal-water slurry process burner to inject fuel gas and oxygen for ignition and baking, in actual use, it is often easy to This caused severe ablation of the head of the coal water slurry process burner, which greatly affected the working performance and service life of the coal water slurry process burner

Method used

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  • Ignition method of integrated CWS (coal water slurry) process burner
  • Ignition method of integrated CWS (coal water slurry) process burner
  • Ignition method of integrated CWS (coal water slurry) process burner

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0024] refer to figure 1 , an ignition method for an integrated coal-water slurry process burner, comprising: a coal-water slurry process burner, and an ignition start-up burner arranged on one side of the coal-water slurry process burner, the coal-water slurry process burner The nozzle and the burner direction of the ignition start-up burner are all facing the furnace, and the position of the burner head of the ignition start-up burner is 10-300 mm away from the position of the burner head of the coal-water slurry process burner.

[0025] Wherein the coal-water slurry process burner 1 is a sleeve-type structure, and from the inside to the outside are the central oxygen channel 10, the coal-water slurry channel 11 and the outer oxygen channel 12...

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Abstract

The invention discloses an ignition method of an integrated CWS (coal water slurry) process burner. The method comprises steps as follows: Step 1, firstly, cooling water is introduced into the CWS process burner, and stable cooling water flowing is formed in an inner cooling water channel and an outer cooling water channel; Step 2, oxygen and fuel gas are introduced into an ignition starting burner arranged on one side of the CWS process burner, and mixed gas of the oxygen and the fuel gas is ignited at the head of the ignition starting burner; Step 3, mixed gas in the step 2 increases the temperature of a furnace chamber to 800 DEG C or above, CWS and oxygen are introduced into the CWS process burner, and an atomized mixture of the CWS and the oxygen is then ignited immediately in the high-temperature furnace chamber; Step 4, after the temperature of the furnace chamber meets the requirement, nitrogen is introduced into the ignition starting burner so as to blow away the fuel gas and the oxygen in the ignition starting burner and perform purging and cooling on the head of the ignition starting burner. The ignition method has the characteristics of simple structure and convenience in use.

Description

technical field [0001] The invention relates to the coalification process field of pressurized gasification of coal-water slurry, in particular to an ignition method for an integrated coal-water slurry process burner. Background technique [0002] At present, the gasifiers using the coal-water slurry gasification process in my country are divided into hot fireplaces and cold fireplaces, so-called hot fireplaces, with refractory materials in the furnace. On the one hand, in order to protect the gasifier shell from heat. On the other hand, when the ignition is started, the refractory material is used for heat storage to complete the ignition process of the coal-water slurry. The so-called cold fireplace means that the gasifier shell is protected by using water-cooled coils to hang slag in the furnace. [0003] Normally, the starting method of coal-water slurry pressurized gasification thermal fireplace is: use the ignition burner to preheat, and install a refractory material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/50
CPCC10J3/485C10J3/506C10J2200/152C10J2300/0936C10J2300/0959
Inventor 吴远刚马成薛康陈杰
Owner XIAN AEROSPACE SOURCE POWER ENG CO LTD
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