Experiment system for superhigh temperature bag duster

Abstract

The experiment system for super high temperature bag duster includes super high temperature bag duster with fume inlet and fume outlet in the side wall, controller, compression air source and ash remover, as well as blower, simulating heater, air inlet pipeline, air outlet pipeline and ash adding unit on the side wall of the air inlet pipeline. The super high temperature bag duster consists of cover plate, cylindrical barrel, upper pattern board, lower pattern board and conic ash bucket, and one sound wave vibrating ash remover is installed over the cover plate. The present invention can simulate super high temperature fume filtering condition for directing the design of super high temperature bag duster.

Description

technical field [0001] The invention relates to an ultra-high temperature bag type dust collector experimental system. Background technique [0002] At present, with people's emphasis on environmental protection, the domestic bag dust removal industry is gradually growing, and the technology is becoming more and more advanced and mature. However, the temperature range of its main application is still between 100°C and 260°C, and the treatment effect is not ideal under high temperature conditions. That is to say, the dust collector cannot play the role of dust removal during the period when the boiler is overheated; in industrial kilns with high flue gas temperature, large emission, and fine dust particle size, especially in the field of dust removal of cement kiln flue gas, The application effect of conventional mature technology is not good. Firstly, the flue gas temperature is high, the flue gas volume is large, the dust concentration is high, and the operating conditions...

AI Technical Summary

Problems solved by technology

However, the temperature range of its main application is still between 100°C and 260°C, and the treatment effect is not ideal under high temperature conditions. That is to say, the dust collector cannot play the role of dust removal during the period when the boiler is overheated; in industrial kilns with high flue gas temperature, large emission, and fine dust particle size, especially in the field of dust removal of cement kiln flue gas, The application effect of conventional mature technology is not good. Firstly, the flue gas temperature is high, the flue gas volume is large, the dust concentration is high, and the operating conditions are very harsh. Ordinary polyester needle felt cannot withstand the high temperature flue gas of the kiln, while glass fiber needle felt cannot adapt to the change of the flue gas volume of the kiln, the filtration speed is low, and the folding resistance is poor

[0003] The currently used flue gas cooling device still has defects, such as: mixing cold air to cool down is a commonly used simple way to cool down, but the air volume for processing is increased, and the processing capacity of the equipment needs to be improved for the bag filter; It is possible that the air mixing is uneven, or the reaction is lagging, and the flue gas temperature fluctuates in a large range, which also causes damage to the filter bag

[0004] Cooling with water spray is also a commonly used simple cooling method. Although it overcomes the disadvantage of increasing the air volume caused by mixing cold air for cooling, it increases the humidity of the flue gas, causing the dew point to rise, flue gas condensation, and dust The agglomeration is not easy to clean the dust and cause the bag to stick

[0005] Other flue gas cooling devices, such as heat exchangers and waste heat furnaces, require more investment and have obvious defects. Both heat exchangers and waste heat furnaces have the problems of easy dust accumulation and flue gas erosion, and require a lot of money to install and clean them. Ash installation and maintenance

[0006] Due to the limitation of filter materials, the filtration speed of ordinary bag filter is very low. The larger the amount of flue gas to be processed, the larger the floor area of ​​the filter and the higher the investment.

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