Efficient integrated desulfurization and denitrification device for coal-fired boiler fuel gas and implementation method of device

A technology for desulfurization, denitrification, and coal-fired boilers, which is applied to chemical instruments and methods, gas treatment, and separation methods. It can solve the problems of large equipment investment, high failure rate, and cumbersome operating procedures, and achieve low one-time investment and maintenance costs. Low, simple equipment effect

CN109331631AInactive Publication Date: 2019-02-15山东海蓝阳光环境服务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-02-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an efficient integrated desulfurization and denitrification device for coal-fired boiler fuel gas and an implementation method of the device. The efficient integrated desulfurization and denitrification device for the coal-fired boiler fuel gas comprises a desulfurization and denitrification agent conveying module, a desulfurization and denitrification agent metering and spraying module and a circulating spraying system, wherein the desulfurization and denitrification agent conveying module is connected with the desulfurization and denitrification agent metering and spraying module, and the desulfurization and denitrification agent metering and spraying module is connected with the circulating spraying system. The device and the method provided by the invention have the advantages that defects of the conventional desulfurization and denitrification process and equipment such as large investments, complicated operation procedures, a high failure rate and the like are overcome, strength and acid and alkali resistance are guaranteed, the contact between fuel gas and circulating slurry is enlarged, and the desulfurization and denitrification efficiency is improved.
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Description

technical field

[0001] The invention relates to a desulfurization and denitrification device, in particular to an integrated device for high-efficiency desulfurization and denitrification of flue gas of a small coal-fired boiler and a realization method thereof, belonging to the technical field of environmental protection mechanical equipment. Background technique

[0002] Although the use of coal-fired boilers has made great contributions to my country's economic development, the emission of flue gas and exhaust gas also causes huge pollution to my country's air environment. SO2 and NOX pollution has surpassed smoke pollution and become the largest pollutant in the atmospheric environment.

[0003] Desulfurization in the prior art mainly includes wet desulfurization, semi-dry desulfurization, dry desulfurization, etc. The wet desulfurization mainly includes desulfurization processes such as limestone-gypsum method, magnesia method, ammonia method, alkali method, etc. Current...

Examples

Embodiment Construction

[0042] Example, as attached Figure 1-12As shown, an integrated device for high-efficiency desulfurization and denitrification of flue gas from a coal-fired boiler includes a desulfurization and denitrification agent delivery module 1, a desulfurization and denitration agent metering injection module 2, and a circulating spray system 3. One end of the desulfurization and denitrification agent delivery module 1 is connected with a sub- The sodium chlorate storage tank 4, the sodium chlorite storage tank 4 are connected with an unloading pump 5, the unloading pump 5 is connected with a transport tanker 6, and the transport tanker 6 is connected with a waste water pool 7;

[0043] The desulfurization and denitration agent delivery module 1 is respectively connected with a desulfurization and denitration agent metering injection module 2 and two sets of dilution pumps 9, the desulfurization and denitration agent metering injection module 2 is connected with a circulating spray syst...