Filtering device for treating painting mist waste gas

Abstract

The invention discloses a filtering device for treating a painting mist waste gas. The filtering device comprises a filter body, and a housing for accommodating the filter body. The interior of the filter body, along a direction from an air inlet to an air outlet, is successively provided with a first initial effect filtering layer, a second initial effect filtering layer, a medium effect filtering layer and a high effect filtering layer. The first initial effect filtering layer is a painting mist felt, and two ends thereof are rolled on a first rotating shaft and a second rotating shaft. Thepainting mist felt is fixed on the filter body through the first rotating shaft and the second rotating shaft. A motor is further installed in the filter body. The motor is connected with the first rotating shaft or the second rotating shaft. The filtering device is capable of absorbing painting mist or dust through the painting mist felt, guaranteeing the filtering effect, and prolonging servicelife and a replacement period of the next level of a filtering material; and the rotating shafts, compressing, rolling and storing the unused or used painting mist felt, and in the case that the equipment is not shut down, mechanically replacing the first initial effect filtering layer filter.

Description

technical field [0001] The invention relates to the field of waste gas treatment in the spraying industry, in particular to a filter device for treating paint mist waste gas. Background technique [0002] The spraying exhaust gas generated by the spraying industry generally needs to be filtered to remove most of the particulate matter before further treatment. Filtration is divided into primary filtration, intermediate filtration, advanced filtration, etc. The primary-effect filter layer removes the paint mist with large particles in the exhaust gas, reduces the content of paint mist entering the medium-efficiency filter layer and high-efficiency filter layer, and the medium-efficiency filter further removes the paint mist in the exhaust gas. The medium-sized paint mist, the high-efficiency filter layer removes the paint mist with smaller particles in the exhaust gas, so as to ensure the overall filtering effect of the filter device. [0003] At present, there are mainly tw...

AI Technical Summary

Problems solved by technology

Since the waste gas produced by the manufacturer in the production process contains high content or easily solidified or dusty paint mist, the primary filter layer of the filter will quickly reach the collection capacity, resulting in the blockage of the primary filter layer, which will affect the efficiency of the filter device. Filtration action, causing frequent primary filter changes

[0004] Frequent replacement of the filter of the primary filter layer will lead to: 1. It will greatly increase the replacement cost of the filter material and the replacement labor cost, such as using a reusable primary filter, which requires high labor costs for replacement and flushing, such as Using a disposable primary filter, the cost of filter materials and labor also needs to be significantly increased; 2. The process of replacing the filter material requires the shutdown of the filter equipment, and the workshop must stop production, which has a great impact on the production of the workshop

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