SU551037A1 - Granular filter - Google Patents

Description

The present invention relates to the field of cleaning devices, for example, to dedust gas streams (air, nitrogen, etc.) and can be applied in heat and power, mining, metallurgical and other industries that require purification of industrial emissions into the atmosphere. Granular filters are known with a slide, a granular layer for cleaning the gas from dust, the regeneration of the granular material of which is carried out outside the filter}. Also known 3epmiv. y and a filter with a moving layer for cleaning gas from dust, including a housing with nozzles for inlet and outlet of gas, a granular layer located inside the housing between the inlet and outlet nozzles, an inclined vibrating screen for regeneration, mounted on the gathering of the granular layer above the dust collector bin and a pipeline for recirculating the granular material, connected by one condom to the bottom of the vibrating screen, and the other end to the hopper for introducing the granular material 2J. However, the regeneration of the granular material is carried out in a known filter re not complete, which lowers the efficiency of cleaning. Improving the efficiency of gas cleaning is achieved in the proposed filter by the fact that above the shaker, in front of the recirculation pipeline, nozzles are installed for irrigation with water, and under it is a hopper for collecting the wash water. The inclined vibrating screen can be made not only in the form of a simple perforated sheet, but also with movable louvers that open during vibration, while the size of the gaps formed does not exceed the size of the granular nozzle, which can be ensured by choosing the length of the louver. their shapes, fastenings, etc. The drawing shows schematically a granular filter, a general view. The filter consists of body 1, grates 2, granular layer 3, collected dust bunker 4, vibrosieve 5, elevator of regenerated layer 6, irrigation nozzles 7,