Pulse reverse blowing ash removal device of ceramic filter

A ceramic filter, pulse backflushing technology, applied in the fields of dispersed particle filtration, chemical instruments and methods, dispersed particle separation, etc., can solve the problems of increasing dust concentration, unfavorable long-term stable operation of the filter, affecting the production process, etc. Achieve the effect of reducing the possibility of fracture failure, conducive to long-term stable operation, and easy backflushing parameters
CN102698546BActive Publication Date: 2014-07-09CHINA UNIV OF PETROLEUM (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2014-07-09

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Abstract

The invention relates to a pulse reverse blowing ash removal device of a ceramic filter. The pulse reverse blowing ash removal device is characterized in that a filtering unit and an air collecting chamber are arranged on a tube plate of the filter; a clean gas chamber is arranged at the upper part of the tube plate of the filter, and a dusty gas chamber is arranged at the lower part of the tube plate of the filter; the pulse reverse blowing ash removal device comprises a reverse blowing gas storage tank; a reverse blowing pipeline which is in tight coupling with the top of the gas collecting chamber of the filtering unit is arranged on the reverse blowing gas storage tank; a pulse reverse blowing valve is arranged in the reverse blowing pipeline; a clean gas leading-out pipeline is connected on the reverse blowing pipeline between the top of the gas collecting chamber and the pulse reverse blowing valve, and an outlet end of the clean gas leading-out pipeline is arranged in the clean gas chamber; a dust concentration monitoring meter, a gas outlet control valve and a flow meter are arranged in the clean gas leading-out pipeline; and a differential pressure sensor is arranged between the dusty gas chamber and an outlet at the top end of the gas collecting chamber of the filtering unit. The pulse reverse blowing ash removal device provided by the invention can realize the cyclic regeneration of a ceramic filter tube by adopting a lower reverse blowing pressure and reduces the possibility of fracture failure of the ceramic filter tube.
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Description

technical field

[0001] The invention relates to a gas-solid separation device, in particular to a low-pressure pulse backflushing ash cleaning device of a ceramic filter. Background technique

[0002] High-temperature gas dedusting is a technology that directly separates gas and solid under high temperature conditions to realize gas purification. It can maximize the use of physical sensible heat, chemical latent heat and kinetic energy of gas, improve energy utilization, and simplify the process at the same time. Save equipment investment.

[0003] Among the clean coal technologies with the most development potential, various coal-fired power generation technologies represented by integrated coal gasification combined cycle (IGCC) and pressurized fluidized bed combined cycle power generation (PFBC-CC) and coal gasification as the leader Coal chemical polygeneration technology involves high temperature gas dust removal. A common problem encountered in the commercial develop...

Claims

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