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Fuel feeding proportion adjustable combustor

A burner and adjustable technology, applied in the field of manufacturing, can solve the problems of fluctuating flame, difficulty in stabilizing, and difficulty in adjusting flame direction, etc., to achieve the effect of changing blackness, improving glass quality, and good burning effect

Active Publication Date: 2019-03-19
LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] 1. The adjustment range of flame rigidity, length, flame coverage, flame blackness, and flame direct heat transfer effect is small;
[0021] 2. The flame burning position and burning speed cannot be adjusted;
[0022] 3. The adjustment range of the local combustion atmosphere is small;
[0023] 4. It is inconvenient to adjust the concentration of pure oxygen;
[0024] 5. It is inconvenient to adjust the feed ratio of different fuels;
[0025] 6. It is difficult to adjust the flame direction (horizontal or vertical);
[0026] 7. The flame is difficult to stabilize when the calorific value of the fuel fluctuates greatly;
[0027] 8. The application of pure oxygen / oxygen-enriched combustion of low calorific value gas fuels is limited

Method used

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  • Fuel feeding proportion adjustable combustor
  • Fuel feeding proportion adjustable combustor
  • Fuel feeding proportion adjustable combustor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] During the glass melting process, the figure 1 For the burner shown, the first outlet end of the first oxidizer passage of the burner has a first offset angle, and the first offset angle is selected as 2-8°, and the second outlet of the second oxidizer passage of the burner The end has a second offset angle, the second offset angle is selected from 1-5°, and the nozzle is selected Figure 4 The nozzle configuration shown, ie the outlet end of the nozzle does not have a diversion structure. The oxidant is pure oxygen, which is input from the main inlet 30, and the first oxidant supply system 12, the second oxidant supply system 13 and the fuel-third oxidant are respectively controlled by the first control unit 1215, the second control unit 1315, and the third control unit 1115. The oxidant flow distribution in the supply system 11 allows the oxidant to be mixed with the fuel at the desired time and location and maintains the desired flame direction. The second fuel is ...

Embodiment 2

[0107] The combustor and combustion method capable of adjusting the feeding ratio of the second fuel and the first fuel in the present invention will be described in detail below with reference to the embodiments.

[0108] In one embodiment of the present invention, a flat glass furnace with a daily output of 550 T / D adopts a typical sulfate-containing soda-lime-silica glass formula. Eleven burners are set at intervals on each side of the kiln, using pure oxygen / natural gas cross-flame combustion. A row of bubblers is installed in the kiln about 1800mm upstream of the hot spot. Under the designed target production conditions, the position of the target bubble boundary is about 1800mm upstream of the bubbler, and the position of the target material mountain line is about 1800mm upstream of the target bubble boundary. About 2500mm.

[0109] Due to the temperature difference between the hot spot and the feeding end, the surface glass liquid at the hot spot backflows toward the f...

Embodiment 3

[0119] The combustor and combustion method capable of adjusting the feed ratio of multiple fuels in the present invention will be described in detail below in conjunction with the examples. In this embodiment, the present invention can be used to control the combustion effect of fuels with unstable calorific value:

[0120] use Figure 5 For the burner shown, the first outlet end of the first oxidant passage of the burner has a first offset angle, and the first offset angle is selected as 6°, and the second outlet end of the second oxidizer passage of the burner has The second offset angle, the second offset angle is selected as 3°, and the nozzle is selected Figure 4The nozzle configuration shown, ie the outlet end of the nozzle does not have a diversion structure. The oxidant is pure oxygen, which is input from the main inlet, and the first control unit 1215, the second control unit 1315, and the third control unit 1115 control the first oxidant supply system 12, the seco...

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Abstract

The invention discloses a fuel feeding proportion adjustable combustor. The combustor comprises a fireproof unit, a metal part, a fuel flow control device, a fuel-third oxidizing agent feeding system,a first oxidizing agent feeding system and a second oxidizing agent feeding system, wherein the fuel-third oxidizing agent feeding system comprises a fuel burner as a plurality of third oxidizing agent channels; the first oxidizing agent feeding system comprises a plurality of first oxidizing agent channels; the second oxidizing agent feeding system comprises a plurality of second oxidizing agentchannels. The fuel burner comprises second fuel injection pipes located at the center and first fuel injection pipes defined by the outer walls of the second fuel injection pipes and the inner wall of the burner. The combustor provided by the invention can be used for a multi-fuel kiln furnace and can adjust the feeding proportions of various fuels.

Description

[0001] This application requests the priority of the PCT patent application filed on November 30, 2017 with the application number PCT / CN2017 / 113872 and the title of the invention "An oxidant-multi-fuel burner that can be used for solid fuel and gas fuel" , which is hereby incorporated by reference in its entirety. technical field [0002] The present invention relates to a combustion equipment, in particular to a multi-fuel (first fuel and second fuel) burner which can adjust the feed ratio of various fuels, and the burner can adjust the first fuel and the second fuel The fuel feed ratio is used to control the combustion effect, and the flame direction and combustion effect are adjusted by adjusting the distribution of the oxidant. It can be used in glass, metallurgy, cement, ceramics and other manufacturing fields. Background technique [0003] In the fields of glass, metallurgy, cement, ceramics, etc., the heat transfer method of flame radiation energy to the heated mediu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D17/00F23N1/02
CPCF23D17/005F23D2204/20F23N1/02F23N2237/08
Inventor 阎韬瑞米·奇亚瓦
Owner LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
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