A kind of gas filtering device and filtering method without back blowing
A filter device and gas technology, applied in the field of environmental science and technology, can solve the problems of increased air flow resistance, poor dust filtering effect, poor filtering effect, etc., to increase the flow of dust-laden gas, avoid poor filtering effect, and improve dust removal efficiency. Effect
Active Publication Date: 2018-02-06
HEFEI JINA NEW MATERIAL TECH CO LTD
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Problems solved by technology
However, the main disadvantages of this method are as follows: first, in the early stage of filtration, due to the large gap between particles, the filtering effect on dust, especially fine dust, is poor; as the dust accumulates, complete dust will be formed on the upper part of the particle layer Membrane, the filter effect of the dust filter membrane is better than that of the granular layer, and the dust removal rate of the air is the highest at this time
Second, with the accumulation of dust, the air flow resistance increases and the flow rate decreases, which cannot meet the requirements of use. It needs to be blown back to remove the dust in it, so that it can meet the requirements of use again, and then enter the next repeated use
This operation is relatively complicated, and it is reused again, and the above-mentioned situation of poor filtering effect in the initial stage occurs
Method used
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[0026] Such as figure 1 As shown, a blowback-free gas filter device includes a vertically arranged gas channel 1; a dusty air inlet 1a is opened at the upper end of the gas channel, and a purified gas outlet 1b is opened at the lower end; a cloth is arranged in the gas channel The air plate 3 is laid with a particle bed 2 on the air distribution plate 3; a dust collection area 4 is arranged outside the middle section of the gas channel, and a dust outlet 1c is opened on the side wall of the gas channel 1, and the dust collection area and the gas channel Connected through the dust outlet;
[0027] The upper end surface of the dust collection area is flush with the upper end surface of the dust outlet 1c, and the lower end surface is lower than the upper end surface of the particle bed 2; the upper end surface of the particle bed 2 is lower than the lower end surface of the dust outlet 1c;
[0028] The filter device also includes a dust removal slider 5, the lower end surface o...
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Abstract
The invention discloses a gas filtering device and a filtering method without back blowing, which are characterized in that: the device is a vertical structure, including a gas channel, a dust collection area and a dust removal slider; an air distribution plate is arranged in the gas channel, A granular bed is supported on the air distribution plate; when in use, the dust-containing gas is filtered and purified through the granular bed and then discharged, and the dust is accumulated above the granular bed. When the accumulation thickness is too thick and affects the work, it is thinned by the dust removal slider to get it back to work. The filter device and the filter method of the present invention can not only save the back-blowing step of the existing equipment, but also protect the dust filter membrane from being damaged, thereby improving the filter efficiency.
Description
technical field [0001] The invention relates to a gas filter device and a filter method without back blowing, belonging to the field of environmental science and technology. Background technique [0002] The particle bed gas filter device is a commonly used device for dust removal in industrial dusty air. The device uses dusty air to absorb dust when the dusty air passes through the particle layer, so that the dust in the air is removed. However, the main disadvantages of this method are as follows: first, in the early stage of filtration, due to the large gap between particles, the filtering effect on dust, especially fine dust, is poor; as the dust accumulates, complete dust will be formed on the upper part of the particle layer Filter membrane, the filter effect of the dust filter membrane is better than that of the particle layer filter, and the dust removal rate of the air is the highest at this time. Second, with the accumulation of dust, the air flow resistance incre...
Claims
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IPC IPC(8): B01D46/30B01D46/42B01D46/48
CPCB01D46/30B01D46/42B01D46/48B01D2265/06B01D46/681
Inventor 胡吉祥胡晓翠
Owner HEFEI JINA NEW MATERIAL TECH CO LTD