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Dust Collection Performance of Bag Filters in Rice Processing Facilities

机译：水稻加工设施袋式过滤器的灰尘收集性能

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摘要

Because rice dust constitutes a form of air pollution, bag filters are widely used in rice processing facilities. Rice dust has various particle sizes, and the dust concentration in air is low with rice dust. Research on the rice dust collection performance of bag filters is necessary for effective dust collection in rice processing facilities. The objective of this study was to investigate the rice dust collection performance of bag filters. The pressure drop and rice dust collection efficiency weremeasured with various face velocities, dust concentrations, andfabric filter media. The dust collection efficiency decreased slightly with increases in the face velocity and in the maximum pressure drop in normal conditions. In addition, correlation equations of the pressure drop across a clean filter medium and across the dust cake are suggested to predict the pressure drop in overloaded conditions in rice processing facilities. The average error was 20.2%, and it decreased with increasing pressure drop. Using the correlation equations, bag filters can be managed to remove the deposited dust before the pressure drop significantly increases or reaches its maximum value.
机译：由于稻粉构成了空气污染的形式，因此袋式过滤器广泛用于水稻加工设施。米粉有各种粒径，空气中的粉尘浓度低米粉尘。袋式过滤器的稻米粉尘收集性能研究是水稻加工设施中有效的灰尘收集所必需的。本研究的目的是研究袋式过滤器的稻米粉尘收集性能。压降和水稻粉尘收集效率随着各种面部速度，粉尘浓度，ANDFABRIC过滤介质。灰尘收集效率略微下降，面部速度增加，正常情况下的最大压降。此外，建议在清洁过滤介质和灰尘饼干上进行压降的相关方程，以预测水稻处理设施中过载条件的压降。平均误差为20.2％，随着压降的增加而降低。使用相关方程，可以设法袋式过滤器在压降显着增加或达到其最大值之前去除沉积的灰尘。

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