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Comprehensive purification process of glass kiln smoke

A glass kiln and purification process technology, applied in the field of flue gas treatment, can solve the problem that the flue gas temperature cannot meet the requirements of denitration catalyst activity, and achieve the effect of ensuring long-term efficient and stable operation, no influence of kiln pressure, and high dust removal efficiency

Inactive Publication Date: 2015-10-21
GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

Therefore, under the existing dust removal and desulfurization process, the flue gas temperature cannot meet the activity requirements of the denitrification catalyst

Method used

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  • Comprehensive purification process of glass kiln smoke

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Embodiment Construction

[0020] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like figure 1 As shown, the equipment used in the glass kiln flue gas comprehensive purification process of the present invention includes a high-temperature electrostatic precipitator system, an SCR denitrification system and a semi-dry desulfurization system. SCR denitrification system includes SCR reactor, soot blowing system, metering cabinet, compressed air machine and chlorine water storage tank connected to the metering cabinet, and the output end of the metering cabinet is connected to a high-temperature electric dust collector; semi-dry The desulfurization system includes a desulfurization tower, a bag filter, and the desulfurization tower is connected with a slaked lime silo and a process water tank.

[0022] The concrete flow process of glass kiln flue gas comprehensive purification process of the p...

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Abstract

The invention discloses a comprehensive purification process of glass kiln smoke. The comprehensive purification process comprises the process flows of performing waste heat recovery on high-temperature smoke generated by a glass kiln through a waste heat boiler, leading the smoke into a high-temperature electric precipitator system for high-temperature smoke dust removal treatment in the section of the waste heat boiler at 380 to 420 DEG C, cooling the standard smoke after dust removal to 350 to 400 DEG C, so as to satisfy the requirement of the best active temperature of an SCR denitration catalyst, then leading the smoke after dust removal into an SCR denitration system for removing NOx, leading the smoke after denitration back to the waste heat boiler for waste heat recovery, and leading the smoke into a desulfurization system with a semidry method after the smoke in the waste heat boiler is cooled to 170 to 180 DEG C, so that the standard smoke after desulfurization is cooled to 140 to 160 DEG C and then is discharged into the atmospheric environment through a chimney. The glass kiln smoke after process treatment by adopting the comprehensive purification process reaches the regulations of related national environmental protection discharge standards of a glass industry, the dust discharge concentration is lower than 50 mg / m<3>, the NOx discharge concentration is lower than 700 mg / m<3>, and the SO2 discharge concentration is lower than 400 mg / m<3>.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment, in particular to a comprehensive purification process for flue gas from a glass kiln. Background technique [0002] In recent years, environmental pollution problems such as smog, acid rain and photochemical smog caused by various air pollutants emitted by my country's industrial production have emerged one after another, causing great harm. The requirements for emission limits of air pollutants from furnaces are becoming increasingly stringent, and the "Emission Standards of Air Pollutants for the Flat Glass Industry" (GB26453-2011), "Emission Standards of Air Pollutants for Thermal Power Plants" (GB13223-2011) and "Emission Standards for Boiler Air Pollutant Emission Standards (GB13271-2014) and other mandatory regulations. Among them, the "Emission Standard of Air Pollutants for the Flat Glass Industry" (GB26453-2011) stipulates that since January 1, 2014, the particulate matter, NO ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/50B01D53/56F27D17/00
CPCY02P10/25
Inventor 周永信宋海农杨崎峰陆立海詹馥蔓王爱黄宣宣杨长钫覃海涛黄山
Owner GUANGXI BOSSCO ENVIRONMENTAL PROTECTION TECH
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