Glass kiln smoke deep purification process

Abstract

The invention discloses a glass kiln smoke deep purification process. According to the process, a kiln smoke purification system is adopted for purifying glass kiln smoke. The kiln smoke generated by a glass kiln enters a high-temperature waste heat boiler, and heat energy is recycled for power generation. Kiln smoke coming out from the high-temperature waste heat boiler enters a cyclone dust collector first so as to remove large-particle-size flying ash and then enters a metal sintering filter material dust collector for deep dedusting. The dedusted kiln smoke enters an SCR reactor for denitrification. The denitrified kiln smoke enters a low-temperature waste heat boiler, and heat energy is recycled for power generation. Kiln smoke coming out from the low-temperature waste heat boiler enters a wet desulphurization tower for desulphurization after heat-exchange-cooled by a GGH. The desulphurized kiln smoke is discharged by a chimney after heated by the GGH. Through the glass kiln smoke deep purification process, glass kiln smoke deep purification can be achieved efficiently and stably with low cost.

Description

technical field [0001] The invention relates to a process for deep purification of glass kiln smoke, in particular to a process for deep purification of glass kiln by designing a smoke purification system, which belongs to the field of flue gas treatment and purification. Background technique [0002] As one of the key industrial pollution control industries in my country, the glass industry currently only emits about 12,000 tons of particulate matter per year in the flat glass industry, with NO x About 140,000 tons, SO x The pollution discharge problem is more serious. The Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China issued the "Emission Standards of Air Pollutants for the Flat Glass Industry". From January 1, 2014, the emission standards for glass furnace pollutants are: particulate matter 50mg / m 3 , sulfur dioxide 400mg / m 3 , hydrogen chloride 30mg / m 3 , nitrogen...

AI Technical Summary

Problems solved by technology

[0006] For the existing glass kiln smoke purification process, there are disadvantages of traditional filter bags that are difficult to withstand high temperature and high corrosion conditions, and are easy to paste bags, and high temperature electrostatic precipitators are prone to back corona, low voltage, low current, spark overfrequency, short circuit power failure and After running for a period of time, the efficiency decreases, the life of the catalyst is only 1 / 3 to 3 / 5 of that of the thermal power plant, and a series of problems such as high operating costs. The purpose of this invention is to provide a high-efficiency, stable and low-cost glass kiln smoke Gas deep purification process

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