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Patent Searching and Data


Title:
BOTTOM-REINFORCED FILTER BAG ASH REMOVAL METHOD HAVING VARIABLE INNER CHANNEL AND FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/203836
Kind Code:
A1
Abstract:
A bottom-reinforced filter bag ash removal method that has a variable inner channel, and a filter device, which are used for enhancing filter bag ash removal. The method comprises: introducing an ash removal airflow into a filter bag the cross section area of an inner channel of which is reduced along the direction from a filter bag opening to the bottom part of the filter bag to flow into the bottom part of the filter bag, and continuously reducing the cross section area of the inner channel of the filter bag to ensure that the filter bag continuously compresses the ash removal airflow and improves the impact pressure and impact speed of the ash removal airflow. The device comprises a cage framework and a framework pressing sleeve. A cloth bag is sleeved on the outer part of the cage framework and is attached to the cage framework. The cage framework comprises cohesive connecting pieces and at least three V-shaped steel rings. One end of each V-shaped steel ring is fixed on a cohesive connecting piece to form a conical inward concave cavity, and the other end thereof is folded in the framework pressing sleeve. A cloth bag tensioning sliding block is arranged in the conical inward concave cavity. One end of the cloth bag is sleeved on the framework pressing sleeve, and the other end thereof is folded in the cloth bag tensioning sliding block. The cloth bag is embedded into the conical inward concave cavity along with the cloth bag tensioning sliding block and is fastened by one end of each V-shaped steel ring.

Inventors:
GE SHIFU (CN)
ZHOU CAILING (CN)
Application Number:
PCT/CN2021/076391
Publication Date:
October 14, 2021
Filing Date:
February 09, 2021
Export Citation:
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Assignee:
UNIV SOUTHEAST (CN)
International Classes:
B01D46/04
Foreign References:
CN111544973A2020-08-18
CN101678261A2010-03-24
CN204672038U2015-09-30
US4336035A1982-06-22
Attorney, Agent or Firm:
JW IP LAW FIRM (CN)
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