Title:
【発明の名称】鉄鋼材の熱間圧延設備
Document Type and Number:
Japanese Patent JP3065841
Kind Code:
B2
Abstract:
PURPOSE:To keep the chlorine concentration of at least coolant below a fixed level without blowing out a large volume of coolant and to treat the oil content of the blowing out coolant so that it satisfies the environmental standard, in a hot rolling equipment for iron and steel material for reforming the maintainability of the equipment and improving the performance therefor by using water soluble oil as the coolant. CONSTITUTION:A ion exchange pure water device 11 to manufacture pure water low in chlorine concentricity used as makeup water of coolant and a primary water treating equipment 15 and a secondary water treating equipment 16 to purify coolant blown out in order to keep the chlorine concentration of the whole coolant below a fixed value are prepared in the hot finishing rolling equipment for iron and steel material provided with a finishing mill 2A, headers 3, a scale pit 5, a sedimentation basin 6, a filter 7, a cooling tower 8, an oil feeder 10, a coolant injector 13.
Inventors:
Toshiyuki Kajiwara
Yasushi Yoshimura
Shigeo Hirai
Shinichi Yasunari
Masahiko Oishi
Toshisada Takechi
Hiroyuki Yoshimura
Hideyuki Nikaido
Yasushi Yoshimura
Shigeo Hirai
Shinichi Yasunari
Masahiko Oishi
Toshisada Takechi
Hiroyuki Yoshimura
Hideyuki Nikaido
Application Number:
JP4793693A
Publication Date:
July 17, 2000
Filing Date:
March 09, 1993
Export Citation:
Assignee:
株式会社日立製作所
川崎製鉄株式会社
川崎製鉄株式会社
International Classes:
B01D17/04; B01D17/00; B01D17/025; B01D17/05; B01F3/08; B21B27/10; B21B45/02; C02F9/00; (IPC1-7): B21B27/10; B01D17/04; B01F3/08; B21B45/02; C02F9/00
Domestic Patent References:
| JP6170409A | ||||
| JP6190409A | ||||
| JP615339A | ||||
| JP6297011A | ||||
| JP615314A | ||||
| JP557314A | ||||
| JP2151309A | ||||
| JP62201617A | ||||
| JP5379753A | ||||
| JP55144311A | ||||
| JP4361821A | ||||
| JP61150707A | ||||
| JP59110117U |
Attorney, Agent or Firm:
Kasuga