Synergetic purifying device for removing pollutants in flue gas of glass kiln

Abstract

The invention provides a synergetic purifying device for removing pollutants in flue gas of glass kiln. The device can remove high concentration composite pollutants such as SO2, SO3, NOx, PM2.5, and the like in flue gas. The device mainly comprises a waste heat furnace, an electric deduster, an SCR denitration reactor, a Na2CO3 feeding device, a desulfurizer feeding device, and a desulfurization reactor. The waste heat furnace comprises a high temperature side and a low temperature side. The high temperature side is communicated with a glass kiln and the electric deduster. The electric deduster is communicated with the SCR denitration reactor. The SCR denitration reactor is communicated with the low temperature side. The outlet of the low temperature side is communicated with the desulfurization reactor. The Na2CO3 feeding device and the desulfurizer feeding device are both communicated with the desulfurization reactor. The desulfurization reactor and a desulfurizing and dedusting device are communicated. The desulfurizing and dedusting device is communicated with the desulfurization reactor through an ash circulation metering device, is communicated with an ash ejecting device through an ash modification metering device, and is communicated with an ash discharge valve. The ash ejecting device is communicated with a blower fan and the electric deduster.

Description

technical field [0001] The invention relates to the field of flue gas treatment of glass kiln furnaces, in particular to a collaborative purification device for flue gas pollutants of glass kiln furnaces. Background technique [0002] The flue gas of glass kiln is characterized by complex pollutant components, high pollutant concentration, strong dust viscosity, strong acidity, etc., especially SO in flue gas 3 , NO x The concentration is very high. When burning inferior petroleum coke powder, SO in the flue gas 2 It is also very high. The dust has the characteristics of low melting point, fine particles, low specific resistance, etc., and the temperature of the flue gas is high. The collaborative treatment technology of the above-mentioned compound pollutants in the flue gas is very difficult. [0003] There are about 390 large-scale glass furnaces nationwide, and about 5,000 small glass furnaces. With the country on PM 2.5 With the deepening of treatment, SO in the flu...

AI Technical Summary

Problems solved by technology

Due to the high temperature of the flue gas, the low melting point of the flue dust and its strong viscosity, it is difficult to choose the filter bag of the bag filter. Even if the high temperature filter material is used, the service life is usually not more than one year, and there are often risks of burning and clogging. The operating pressure loss is large and the operating cost is high. In addition to the temperature factor, the high-temperature electrostatic precipitator has fine particle average particle size, low melting point of smoke and strong viscosity. Even if the electrostatic precipitator is used, there are still many technical problems to be solved.

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