Title:
METHOD AND DEVICE FOR RECOVERING BLOWING GAS FROM FOAMED HEAT-INSULATING MATERIAL
Document Type and Number:
Japanese Patent JPH07232325
Kind Code:
A
Abstract:
PURPOSE: To obtain method and device for efficiently granulating a foamed heat-insulating material free from blowing gas as a volume reduction treatment.
CONSTITUTION: Method and device for recovering blowing gas from a foamed heat-insulating material comprise a high-speed rotating grinder 21 for finely grinding a foamed material 1 and breaking independent bubbles, a compression roller 30 for separating a finely ground resin 2 from blowing gas in the bubbles by compression, and a porous plate 4. In this manner, the foamed heat-insulating material free from blowing gas can be efficiently granulated with a high density.
Inventors:
ODA CHIKAO
KIMURA NOBUO
SAKAGUCHI KAZUO
MAKINO KAZUHISA
HARA NORIAKI
KIMURA NOBUO
SAKAGUCHI KAZUO
MAKINO KAZUHISA
HARA NORIAKI
Application Number:
JP2646594A
Publication Date:
September 05, 1995
Filing Date:
February 24, 1994
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B02C18/00; B29B17/00; B29B17/04; B29C44/56; B02C18/14; B29K105/04; B29K105/26; (IPC1-7): B29B17/00; B02C18/14; B02C18/40; B02C18/44
Attorney, Agent or Firm:
Ogawa Katsuo