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Stable combustion device, method and application of converter gas in rotary kiln

A stable combustion and converter gas technology, applied in the field of combustion, can solve the problems of unstable combustion, high cost of accompanying combustion, and uneven temperature in rotary kilns, so as to ensure the stability of output and quality, improve quality stability, and stable combustion Effect

Active Publication Date: 2019-04-02
承德燕北冶金材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The essence of the device and the combustion method is that high calorific value gas is accompanied by low calorific value gas, and the cost of accompanying combustion is high
[0007] A large amount of converter gas will be produced during the vanadium extraction process of the converter. If the converter gas is directly used as combustion gas in the rotary kiln for vanadium extraction in the converter, it will easily cause problems such as unstable combustion and uneven temperature in the rotary kiln; while using high calorific value gas for accompanying combustion Gas with low calorific value violates the original intention of energy saving, so it is necessary to develop a combustion device and method for burning converter gas with low calorific value gas

Method used

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  • Stable combustion device, method and application of converter gas in rotary kiln
  • Stable combustion device, method and application of converter gas in rotary kiln
  • Stable combustion device, method and application of converter gas in rotary kiln

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Embodiment 1

[0036] This embodiment provides a stable combustion device for converter gas in a rotary kiln, the structural schematic diagram of the stable combustion device is as follows figure 1 As shown, the stable combustion device includes a main burner 1 and an accompanying burner 2 arranged below the main burner 1, the central axis of the main burner 1 and the central axis of the auxiliary burning burner 2 and the rotation The central axis of the kiln is parallel, and the distance between the central axis of the main burner 1 and the central axis of the accompanying burner 2 is 6 cm;

[0037] The diameter of the main burner 1 is 420 mm; the diameter of the auxiliary burner 2 is 100 mm.

Embodiment 2

[0039] This embodiment provides a stable combustion device for converter gas in a rotary kiln. The stable combustion device includes a main burner 1 and an accompanying burner 2 arranged below the main burner 1. The center of the main burner 1 axis and the central axis of the accompanying burner 2 are parallel to the central axis of the rotary kiln, and the distance between the central axis of the main burner 1 and the central axis of the accompanying burner 2 is 5 cm.

[0040] The diameter of the main burner 1 is 377mm; the diameter of the auxiliary burner 2 is 90mm.

Embodiment 3

[0042] This embodiment provides a stable combustion device for converter gas in a rotary kiln. The stable combustion device includes a main burner 1 and an accompanying burner 2 arranged below the main burner 1. The center of the main burner 1 axis and the central axis of the accompanying burner 2 are parallel to the central axis of the rotary kiln, and the distance between the central axis of the main burner 1 and the central axis of the accompanying burner 2 is 8 cm.

[0043] The diameter of the main burner 1 is 500mm; the diameter of the auxiliary burner 2 is 100mm.

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Abstract

The invention relates to a stable combustion device for converter gas in a rotary kiln. The stable combustion device comprises a main burner and a burning assisting burner arranged below the main burner; the central axis of the main burner and the central axis of the burning assisting burner are parallel to the central axis of a rotary kiln; and the distance between the central axis of the main burner and the central axis of the burning assisting burner is 3-10 cm. The burning assisting burner uses the low-heating-value gas converter gas as the fuel gas, the emission of the converter gas is reduced, the converter gas is reasonably utilized as the fuel gas, so that the combustion in the converter vanadium extraction rotary kiln is stable, the temperature fluctuation in the kiln does not exceed 10-20 DEG C, and then the yield and the quality stability of the clinker of the rotary kiln are guaranteed.

Description

technical field [0001] The invention belongs to the field of combustion, and in particular relates to a stable combustion combustion device and method, in particular to a stable combustion device, method and application of converter gas in a rotary kiln. Background technique [0002] In the production of the coal chemical industry, a large amount of low-calorific gas is inevitably produced, such as the converter gas produced in the converter of the metallurgical industry. use. Under natural conditions, gases with a calorific value below 1800kcal cannot maintain stable combustion, and high calorific value gases need to be mixed in to increase their calorific value during combustion. The amount is also very large, but the cost of using high-calorific-value gas as the accompanying combustion gas of low-calorific-value gas is relatively high. Using low-calorific-value converter gas in the rotary kiln for extracting vanadium from the converter is very easy due to low temperature...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B7/10F27B7/20F27B7/34F27B7/36
CPCF27B7/10F27B7/20F27B7/34F27B7/36
Inventor 王相宝周立伟丁毅林向丰石永生宋林良曹良臣
Owner 承德燕北冶金材料有限公司