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Burner

A burner, gas technology, applied in the direction of burner, burner, burner cooling, etc., can solve the problems of easy fire breakage, ignition difficulty, etc., to avoid fire breakage, reduce high temperature radiation and erosion wear, excellent wear resistance and the effect of high temperature resistance

Active Publication Date: 2017-11-10
KEDA MAS CLEAN ENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the problems of difficult ignition and easy flame failure in existing ignition burners, the present invention provides a burner with the characteristics of high ignition success rate, good flame stability, excellent wear resistance and high temperature resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 As shown, a burner includes a rear section steel assembly and a front section integral ceramic prefabricated part 9 ', and the front section integral ceramic prefabricated part 9 is fixedly arranged at the front end of the rear section steel assembly;

[0052] The rear section steel components include:

[0053] A gas casing 1, the gas casing 1 has a gas channel;

[0054] An air sleeve 3, the air sleeve 3 is sleeved on the outside of the gas sleeve 1, and an air channel is defined between the inner wall of the air sleeve 3 and the outer wall of the gas sleeve 1;

[0055] Pulverized coal casing 14, the pulverized coal casing 14 is sleeved on the outside of the air casing 3, and the rear section of the casting is defined between the inner wall of the pulverized coal casing 14 and the outer wall of the air casing 3. powder channel;

[0056] Gasification agent sleeve 15, the gasification agent sleeve 15 is sleeved on the outside of the pulverized coal sleeve...

Embodiment 2

[0066] like figure 1 Shown, a kind of burner, its structure is compared with embodiment 1, the difference is: the inner surface of described flame holding section 17 transitions smoothly, and the inner diameter of its outlet end is equal to the inner diameter of said air sleeve 3 , which ensures that the jetted flame has high rigidity and is not easy to be blown out by coal powder and gasification agent.

Embodiment 3

[0068] like figure 1 As shown, a kind of burner, its structure is compared with embodiment 1, the difference is that: the gasifying agent channel 13 in the front stage is a structure that shrinks first and then expands from the inlet to the outlet, which increases the gasifying agent injection velocity, Promote the mixing and atomization of gasification agent and coal powder.

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Abstract

The invention discloses a burner and belongs to the field of fine coal gasification. The burner comprises a back segment steel component and front segment whole ceramic precast components, wherein the back segment steel component comprises a fuel gas sleeve, an air sleeve, fine coal sleeves, gasification agent sleeves and an ignition electrode stem; the front segment whole ceramic precast components are of a structure containing a conical surface and comprise front segment burning channels, a front segment gasification agent channel and front segment pulverized coal introducing channels which have a same ring, and the front segment burning channels comprise flame stabilization segments with sandglass-shaped inner cavities; the flame stabilization segments are communicated with an air channel, the front segment pulverized coal introducing channels are communicated with a back segment pulverized coal introducing channel, and the front segment gasification agent channel is communicated with a back segment gasification agent channel; the outlet of the front segment gasification agent channel and the outlets of the flame stabilization segments are both parallel to the center axis of the front segment whole ceramic precast components, and the outlet directions of the front segment pulverized coal introducing channels expand and incline towards the side of the outlet direction of the front segment gasification agent channel. The burner solves the problems of difficult ignition and easy fire cutoff and has the advantages of high ignition success rate, good flame stability, high temperature resistance and wear resistance.

Description

technical field [0001] The invention belongs to the field of pulverized coal gasification, and more specifically relates to a burner. Background technique [0002] The ignition burner of current gas generator usually adopts oil burner or gas burner. The flame is sprayed downwards into the gas generator to heat the gas generator. When the temperature in the gas generator reaches the requirement, it passes through the coal-feeding burner (the coal-feeding burner can be independent, or it can be connected with the ignition burner) The integrated composite burner) injects pulverized coal and gasification agent into the gasifier, and the gasifier starts to react. After the normal reaction and operation of the gas generator is stable, the ignition burner starts to stop injecting oil or gas. Although the ignition burner and ignition device can be made of heat-resistant steel and equipped with a water cooling device, they usually can only work normally below 450 ° C. Therefore, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D17/00F23B90/06
CPCF23B90/06F23D17/005F23D2214/00F23D2212/10F23D2211/00F23D2209/20F23D2204/20Y02E20/34
Inventor 陈鹏成全健森朵贵平黄成龙毕大鹏金玲玲
Owner KEDA MAS CLEAN ENERGY
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