Thermal oxidation incineration treatment burner, device and process for HCN-containing waste gas

A treatment device and thermal oxidation technology, applied in the direction of combustion type, combustion method, incinerator, etc., can solve the problems of small burner operation flexibility and cannot meet the adjustment requirements, and achieve the effect of improving operation flexibility

Pending Publication Date: 2022-07-29
LUOYANG RUICHANG PETROCHEM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The core of the incineration device lies in the burner, and the operation flexibility of the conventional burner is small, which cannot meet the adjustment requirements of the incineration treatment device for the upstream hydrocyanic acid preparation device under large discharge, high fluctuation, and complex working conditions

Method used

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  • Thermal oxidation incineration treatment burner, device and process for HCN-containing waste gas
  • Thermal oxidation incineration treatment burner, device and process for HCN-containing waste gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like Figure 1-2 As shown, the present invention provides a thermal oxidation incineration treatment burner containing HCN waste gas, the burner is a combined low-nitrogen burner, and is sequentially divided into I-level combustion zone and II-level combustion along the direction close to the exhaust gas incinerator 102. Zone, III-level combustion zone, the front end of the I-level combustion zone includes a primary air inlet 5, a central inner gun 1 and a plurality of central outer guns 2 with an inner and outer coaxial jacket structure, and the front end of the II-level combustion zone is annularly arranged with A secondary air inlet 6, an outer ring fuel gas inlet 9, a plurality of outer ring spray guns 11, the front end of the stage III combustion zone is annularly arranged with a tertiary air inlet 7, an exhaust gas inlet 8, and a plurality of exhaust gas spray guns 10. The outer ring spray guns 11. The exhaust gas spray gun 10 is of a jacketed annular gap structur...

Embodiment 2

[0058] like figure 1 As shown, the present invention also provides a thermal oxidation incineration treatment device containing HCN waste gas, the incineration treatment device comprises an exhaust gas incinerator 102, a waste heat boiler, and a chimney 109 connected in sequence, the waste heat boiler includes a denitration module, the The exhaust gas incinerator 102 is a micro-positive pressure fully sealed structure, the design temperature of its furnace chamber is not lower than 1000 ° C, and an oxygen content analyzer is provided at its outlet. Burner for thermal oxidation incineration of waste gas.

[0059] Specifically, the waste gas incinerator 102 is equipped with the thermal oxidation incineration treatment burner containing HCN waste gas described in Example 1, which satisfies the requirements of the incineration treatment device for the upstream hydrocyanic acid preparation device with large displacement, high fluctuation, and complexity. Adjustment requirements un...

Embodiment 3

[0073] like figure 1 As shown, the present invention also proposes a thermal oxidation incineration treatment process containing HCN waste gas, using the thermal oxidation incineration treatment device containing HCN waste gas as described in this embodiment 2, and the process includes:

[0074] According to the load fluctuation of the upstream hydrocyanic acid preparation device, the air-fuel ratio adjustment loop of the burner's stage III combustion zone is adaptively adjusted for the tertiary air of any number of exhaust gas lances 10. At the same time, the air-fuel ratio adjustment loop of the II stage combustion zone is adjusted. Adaptive adjustment is performed for the secondary air and fuel gas of any number of outer ring lances 11 , and / or the air-fuel ratio adjustment loop of the I-stage combustion zone is adaptively adjusted for the primary air and fuel gas of any number of central outer lances 2 ;

[0075] Wherein, the self-adaptive adjustment method includes: 1) t...

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Abstract

The invention provides a thermal oxidation incineration treatment combustor, device and process for HCN-containing waste gas, and the combustor is a combined low-nitrogen combustor and is sequentially divided into a first-stage combustion area, a second-stage combustion area and a third-stage combustion area in the direction close to a waste gas incinerator. The front end of the I-stage combustion area comprises a primary air inlet, a center inner gun and a plurality of center outer guns, the center inner gun and the center outer guns are of an inner and outer coaxial jacket structure, a secondary air inlet, an outer ring fuel gas inlet and a plurality of outer ring spray guns are annularly arranged at the front end of the II-stage combustion area, and a tertiary air inlet, a waste gas inlet and a plurality of waste gas spray guns are annularly arranged at the front end of the III-stage combustion area. The outer ring spray gun and the waste gas spray gun are each of a jacket annular space structure. According to the thermal oxidation incineration treatment combustor, device and process for the HCN-containing waste gas, the operation flexibility of the combustor is greatly improved, and therefore the adjustment requirements of an incineration treatment device for the large-displacement, high-fluctuation and complex working conditions of an upstream hydrocyanic acid preparation device are met.

Description

technical field [0001] The present invention relates to the technical field of waste gas treatment, in particular, to a burner, device and process for thermal oxidation incineration treatment of waste gas containing HCN. Background technique [0002] The hydrocyanic acid preparation device uses natural gas and ammonia as raw materials, and chemically reacts with oxygen in the air under the platinum catalyst to generate hydrocyanic acid, thereby providing raw materials for the preparation of adiponitrile by the butadiene method. In the preparation process of hydrocyanic acid, a large amount of waste gas containing HCN will be generated. Because HCN gas (chemical name is hydrogen cyanide) is highly toxic, it is easy to disperse evenly in the air, so the waste gas containing HCN needs to be treated with waste gas. to be discharged. [0003] The waste gas containing HCN can be treated by thermal oxidation incineration, and the environmental emission standard of incineration tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/06F23G5/50F23L15/00
CPCF23G7/06F23G5/50F23L15/00
Inventor 刘颖孙东旭王丽洁蒋松
Owner LUOYANG RUICHANG PETROCHEM EQUIP
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