Exterior sieve type bag-type dust remover and its ashing method
A bag-type dust collector and external filter technology, which is applied in chemical instruments and methods, separation methods, and dispersed particle filtration, etc., can solve the problems of reducing equipment operation reliability, unsatisfactory service life, and increasing equipment costs, and achieve simplification Improvement of equipment, life, and reliability
Active Publication Date: 2009-07-15
北京赫宸智慧能源科技股份有限公司
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Problems solved by technology
[0010] Although the external filter bag filter disclosed in the above-mentioned utility model patent has a longer service life due to the reduced deformation of the filter bag during dust removal; Under the action of the air blowing, there will still be a certain vibration, and the cleaning method is also dynamic cleaning, the filter bag will still be damaged to a certain extent, and its service life is still unsatisfactory
In addition, the above-mentioned bag filter requires a special device for producing high-frequency pulsating back-blowing airflow, which increases the cost of the equipment and reduces the reliability of the equipment operation.
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[0041] The core of the invention is to provide an external filter bag type dust collector with long service life, low equipment cost and reliable operation and a dust cleaning method thereof.
[0042]In order to enable those skilled in the art to better understand the solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0043] Please refer to figure 1 , which is a structural diagram of the first specific implementation of the external filter bag filter described in the embodiment of the present invention. Such as figure 1 As shown, the external filter bag filter includes a box body 2, and the box body 2 is usually made of metal materials. The lower part of the box body 2 is supported by a bracket 3, which is usually a steel frame. The bottom of the casing 2 is provided with an ash-collecting hopper 4, and there can be one or more ash-collecting hoppers. ...
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The invention relates to an external filter type bag dust collector and a method for cleaning it. The inside of the outer filter bag filter box is provided with a flower plate, and the flower plate is fixedly installed with a filter bag inserted into the bag cage, and the bag cage tensions the filter bag, and the outer filter bag The type dust collector further includes a blowback mechanism that provides a blowback airflow with a stable pressure during dust removal. The outer filter type bag filter provided by the present invention has a stable blowback airflow pressure during dust removal, and the tensioned filter bag remains still during dust removal, realizing static dust removal, and its service life is significantly improved, and at the same time The pulse injection device is saved. The dust cleaning method includes the following steps: first blowing a back-blowing airflow with a stable pressure into the filter bag; cutting off the above-mentioned back-blowing airflow after a predetermined period of time. The external filter bag type dust collector provided by the invention and the method for cleaning the dust can ensure that the filter bag is not damaged during dust cleaning, and prolong the service life of the filter bag.
Description
technical field [0001] The invention relates to a dust collector, in particular to an external filter bag dust collector. The invention also relates to a method for back-blowing and dust-cleaning the outer-filter bag-type dust collector. Background technique [0002] At present, bag filter is widely used in industry to purify dusty gas produced in metallurgy, mining, chemical industry, cement, power generation, grain processing and other industries. [0003] The working principle of the bag filter is to introduce the dust-laden gas into the filter bag and let it pass through the filter bag in the filter bag. The dust particles are intercepted and left on the surface of the filter bag to form a dust layer. The clean air flows out of the dust collector through the filter bag smoothly. [0004] According to the different filtering directions of the filtered airflow, the bag filter can be divided into two types: external filter type and internal filter type. When the outer fi...
Claims
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IPC IPC(8): B01D46/02
CPCB01D46/04B01D46/0067B01D46/06B01D46/70
Inventor 彭志民
Owner 北京赫宸智慧能源科技股份有限公司