Q:What determines the level of baghouse efficiency ?
A: The level of efficiency bag filter, depending on the thickness of the layer of dust on the filter and filter bag. In general, the media dense dust layer thickness, high efficiency; but reduces the corresponding processing gas capacity, namely filtration velocity is low. How to ensure efficient and stable filter pressure loss at the same time, but also improve the filtration velocity, this is a question for further study. Filtering improves wind speed, depending on the method of cleaning and filter performance. Early baghouse dust bag compartment and use, no cleaning device, filtration velocity is low, that is, the ability to lower gas processing. Later artificially remove dust adsorbed on the bag, the filtration velocity increased; which in turn developed into the compartment automatically and periodically rapping intermittent cleaning bag filter (mechanical rapping, inverse and inverse gas airflow system vibration bags dust collector), filtration velocity improved significantly. However, since the cutting room-by gas to be treated sequentially performed for each chamber bag cleaning method, dust not fully functional. In recent years there has been mounted pull its advanced cleaning bag filter, such as pulse jet bag filter is one of them. This filter is not cut off by the case of process gas, continuous cleaning of the filter bag (pressure loss and intends to run in the precipitator dust amount of gas to be treated almost the same). Use of compressed air (which only consumes the most. Sheet to be processed After the dust gas 0.13 ^ -0.3%) r ash and Saikawa efficient bag, had flooded the wind speed up to 5 m / min. It rapping with mechanical cleaning bag filter, compared with a large gas processing capacity and long bag life, high efficiency and maintain a small slit dust and other advantages.
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