Pressure change capacity expansion self-cleaning type efficient waste gas filtering device

Abstract

The invention belongs to the technical field of waste gas treatment, and discloses a pressure change capacity expansion self-cleaning type waste gas efficient filtering device which utilizes atmospheric pressure formed in the outer sides of filter screens during blockage to force the pair of filter screens to rotate and get close to each other, so that a fixed plate gradually moves upwards under the effect of elastic force of a compression spring, an inclined cleaning plate is driven to cling to the surfaces of the filter screens to move upwards, particles attached to the surfaces of the filter screens are scraped, when the push plate penetrates through the pressure relief holes to push the blocking plates to rotate along with gradual approaching of the fixed rods and the fixed plates, thepressure relief holes are opened, waste gas enters the space between the pair of inclined cleaning plates and then is filtered by the filter screens, the pressure in the outer sides of the filter screens is reduced, the filtering screens move far away from each other and return to the original places when being depressurized, and waste gas is thus filtered and purified. The cleaning process of the filter screens is automatically realized on the basis of not interrupting the filtering process, so that the waste gas can be continuously filtered and purified, the filter screens are cleaned automaically, and therefore, a continuous and efficient waste gas purification process is realized.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, and more specifically relates to a pressure-variable capacity-expanding self-cleaning exhaust gas high-efficiency filter device. Background technique [0002] Industrial waste gas refers to the general term for all kinds of pollutant gases that are discharged into the air during fuel combustion and production processes in the enterprise factory area. These exhaust gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist) lead mercury, beryllium compounds, smoke and productive dust, which will pollute the air when discharged into the atmosphere. These substances enter the human body through the respiratory tract in different ways, some directly cause harm, and some have a cumulative effect, which will seriously endanger human health. Industrial waste gas treatment refers to the pre...

AI Technical Summary

Problems solved by technology

[0003] For the treatment of particulate pollutants such as smoke and dust contained in exhaust gas, filtration is generally used for purification, but in filtration treatment, the most common problem is the blockage of filter equipment caused by particulate matter, which not only interrupts the purification process, but also seriously reduces the purification process. Efficiency, and also makes exhaust gas filtration less effective

Images