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Title:
STRUCTURE OF RAKE FOR RAKE-CIRCULATION TYPE DUST REMOVER
Document Type and Number:
Japanese Patent JP3895847
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent concentration of scraping loads on a part of rakes and disperse the loads by mutually and partially changing the distances of raking claws fixed to a plurality of rake girders arranged in the circulating transfer direction of the rake, in the front and rear rake girders.
SOLUTION: The front face of a main screen installed in a channel is moved upward and the rear part of the screen is moved downward to circularly transfer it up and down, and the rake 5 is tumbled at the lower tumbling part of the lower side of the screen. Refuse is scraped up along the front face of the screen by the rake 5 moving up. The distances of rake claws 5b arranged in rake girders 5a of the rake-circulating dust remover are mutually and partially changed. And further, when the distance between the rake claws is narrowed, refuse is scraped up and discharged by the rake 5 of the following stage. And hence, accumulated refuse can be dispersively scraped and concentration of a large scraping load to a part of rake 5 can be prevented. In this way, it prevents the rake 5 from being brought to a stop at overloading and also deterioration with elapsed time, of the driving chain 1b connected to the rake girders 5a from being accelerated.


Inventors:
田嶋 博司
Application Number:
JP28451697A
Publication Date:
March 22, 2007
Filing Date:
September 30, 1997
Export Citation:
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Assignee:
西田鉄工株式会社
International Classes:
E02B5/08; (IPC1-7): E02B5/08
Domestic Patent References:
JP7127040A
JP57202419U
Attorney, Agent or Firm:
原崎 正