A kind of method that utilizes metallurgy and municipal solid waste to prepare sintered NOx inhibitor

An inhibitor and municipal technology, applied in the field of sintered NOx inhibitors, can solve the problems of waste of resources, encroachment on land, pollution of the environment, etc., and achieve the effects of avoiding secondary generation, inhibiting the generation of NOx, and simple preparation process
CN109365490BActive Publication Date: 2020-08-25CENT SOUTH UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2020-08-25
Patent Text Reader

Abstract

The invention discloses a method for preparing sintered NOx inhibitor by using metallurgical and municipal solid waste. The sintered NOx inhibitor is obtained in the manner that metallurgical solid waste and municipal solid waste raw materials are subjected to pelletizing and roasting. In the sintering process of iron ore, the sintered NOx inhibitor is added on the surface of a fuel layer and plays a role of inhibiting the generation of NOx in the sintering process, the emission of the NOx can be reduced, and meanwhile the grade of iron ore sintered ore is not affected. The method provides a new way for clean resource utilization of the metallurgical and municipal solid waste.
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Description

technical field

[0001] The invention relates to a sintered NOx suppressor, in particular to a sintered NOx suppressor prepared by using metallurgy and municipal solid waste, and a method for using the sintered NOx suppressor in the sintering process to reduce NOx emissions. The invention belongs to the technical field of metallurgy and municipal solid (hazardous) waste harmless and resource utilization. Background technique

[0002] In May 2018, the release of the "Steel Enterprise Ultra-Low Emission Transformation Work Plan (Draft for Comment)" put forward higher requirements for the flue gas emission of iron and steel enterprises, among which the NOx emission limit standard was lowered to 50mg / m 3 . Compared with the 100mg / m in June 2017 "Announcement on Amendment of 20 National Pollutant Emission Standards (Draft for Comment)" such as "Steel Sintering and Pelletizing Industry Air Pollutant Emission Standards" 3 , the major iron and steel enterprises have also realized t...

Claims

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