发明名称 |
Method of recovering a base paper for gypsum board |
摘要 |
There are provided a method of recovering a base paper for gypsum board for continuously and efficiently recovering a base paper for gypsum board from a waste material of gypsum board including a gypsum core and the base paper for gypsum board adhering thereto. The method of recovering a base paper for gypsum board includes steps of breaking the waste material of gypsum board, separating a gypsum component and a paper piece of the base paper for gypsum board from the broken waste material of gypsum board, and washing the separated paper piece with water using a rotary drum-type washing device so as to eliminate a gypsum component adhering to the paper piece. |
申请公布号 |
US8157954(B2) |
申请公布日期 |
2012.04.17 |
申请号 |
US20040583881 |
申请日期 |
2004.12.06 |
申请人 |
NISHI MICHIO;TANAKA TAKEHIRO;TAIRA SHIZUO;YOSHINO GYPSUM CO., LTD. |
发明人 |
NISHI MICHIO;TANAKA TAKEHIRO;TAIRA SHIZUO |
分类号 |
D21B1/32;B03B9/06;B09B3/00;B09B5/00;D21B1/02 |
主分类号 |
D21B1/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|