Blast furnace gas gas-phase fluctuation reverse blow inner-filtering bag filter
A bag-type dust collector and blast furnace gas technology, applied in the direction of dust collectors, etc., can solve the problems of poor effect, gap in accuracy and stability requirements, etc., and achieve the effect of improving the efficiency of filtration and cleaning
Active Publication Date: 2014-05-07
CHENGDU RUIKELIN ENG TECH
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Problems solved by technology
[0003] In order to optimize the dust removal technology of pulse bag filter, gas phase pulse bag filter and rotary pulse bag filter came into being, but the effect is not good when applied to blast furnace gas dust removal, and the problem has not been fundamentally solved
Some domestic steel mills try to apply the reverse blowing inner filter bag filter to blast furnace gas dust removal. Although the performance of the filter bag is better than that of the pulse bag filter in terms of dust removal strength, filter bag life, and supporting equipment reliability, but There is still a gap between the TRT system and the post-process requirements for blast furnace gas dust removal accuracy and stability
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Embodiment Construction
[0021] The present invention will be further described below in conjunction with accompanying drawing.
[0022] Such as figure 1 As shown, the present invention includes a container 1, a filter unit arranged in the container 1, the bottom of the container 1 is an ash hopper 8, the filter unit includes a mounting structure and a filter bag 2 installed on the mounting structure, the The filter unit divides the container 1 into an upper clean gas space 11 and a lower crude gas space 9, the container 1 is provided with a crude gas inlet 5 and a clean gas outlet 6, and the crude gas inlet 5 is connected to the crude gas The gas space 9 communicates, the clean gas outlet 6 communicates with the clean gas space 11, the installation structure includes a hanging platform 3 and an installation flower plate 4, and the opening of the filter bag 2 is sealed and connected to the installation flower plate 4 And communicate with the crude gas space 9, the hanging platform 3 is set in the cle...
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Abstract
The invention discloses a deduster, particularly a blast furnace gas gas-phase fluctuation reverse blow inner-filtering bag filter for preventing leakage of a seal of a filter bag from when removing dust, comprising a container and a filtering unit arranged in the container, wherein the container bottom is a dust hopper, the filtering unit comprises an installation structure and a filter bag arranged on the installation structure, the filtering unit divides the container into an upper clean gas space and a lower raw gas space, the container is provided with a raw gas inlet and a clean gas outlet, the raw gas inlet is communicated with the raw gas space, the clean gas outlet is communicated with the clean gas space, the installation structure comprises a hanging platform and an installation tubesheet, the open seal of the filter bag is connected with the installation tubesheet and is communicated with the raw gas space, the hanging platform is arranged in the clean gas space, the hanging platform is provides with an elastic hanging unit, and the filter bag cap is hung on the elastic hanging unit.
Description
technical field [0001] The invention relates to a dust collector, in particular to a blast furnace gas gas phase pulsation reverse blowing inner filter bag dust collector. Background technique [0002] Blast furnace gas full-dry bag dust removal technology for iron and steel enterprises has been widely used in China due to the large domestic crude steel production capacity and the country's consideration of energy conservation and environmental protection. Special provisions have been made in industry standards and regulations. Influenced by environmental protection and technology in foreign developed countries, the application of full-dry bag filter is subject to certain restrictions. The blast furnace gas pulse bag filter, which is widely used in China, evolved from the environmental dust collector. It uses high-pressure nitrogen as the driving force for cleaning dust. The pulse valve is used to control the instantaneous release of nitrogen gas, which is injected into the ...
Claims
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IPC IPC(8): C21B7/22
Inventor 谭险峰
Owner CHENGDU RUIKELIN ENG TECH