Title:
ディスクフィルタで石灰泥を濃縮する方法と装置
Document Type and Number:
Japanese Patent JP3698165
Kind Code:
B2
Abstract:
PCT No. PCT/FI94/00320 Sec. 371 Date May 20, 1996 Sec. 102(e) Date May 20, 1996 PCT Filed Jul. 12, 1994 PCT Pub. No. WO95/02442 PCT Pub. Date Jan. 26, 1995A method and apparatus thickens lime mud with a disc filter in such a way that the precoat layer on the filter surfaces of the disc filter can be cleaned. Beneath the scrapers for scraping a dry layer of lime sludge from the precoat layers on the disc filter wires surfaces one or more high pressure nozzles, and optionally a low pressure nozzle, are provided for directing jets of liquid at the precoat layer and wire surface. One high pressure nozzle may remove the precoat layer while another cleans the wire surface, and the nozzles may be reciprocated (with respect to the shaft for rotating the disc filters in a trough). The high pressure jets provide liquid at a pressure of about 30-100 bar, while the low pressure jet pressure is between 2-30 bar and may be utilized continuously, or arrested when the high pressure jets are operable.
Inventors:
Luokolinen, Pecca
Titov, Juha
Titov, Juha
Application Number:
JP50436195A
Publication Date:
September 21, 2005
Filing Date:
July 12, 1994
Export Citation:
Assignee:
Andritsu Yuukichu
International Classes:
B01D24/46; B01D33/21; B01D33/44; B01D33/58; B01D37/02; (IPC1-7): B01D33/21; B01D24/46; B01D33/44; B01D33/58
Domestic Patent References:
| JP62033897A | ||||
| JP3505546A | ||||
| JP5111603A | ||||
| JP7508920A | ||||
| JP8508675A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto
Hajime Asamura
Yutaka Yoshida
Yukio Iwamoto