发明名称 |
Methods of and systems for preparing a heat resistant accelerant slurry and adding the accelerant slurry to a post-mixer aqueous dispersion of calcined gypsum |
摘要 |
Methods and systems are provided for preparing a heat resistance accelerator (HRA) slurry. Also provided are methods and systems for introducing a HRA slurry to an aqueous dispersion of calcined gypsum in a discharge apparatus downstream of a stucco mixer in which the dispersion was prepared. These methods and systems are useful in the production of various gypsum products such as board including wallboard and ceiling tiles.
|
申请公布号 |
US7718019(B2) |
申请公布日期 |
2010.05.18 |
申请号 |
US20050116549 |
申请日期 |
2005.04.27 |
申请人 |
UNITED STATES GYPSUM COMPANY |
发明人 |
WITTBOLD JAMES R.;GROZA BRENT |
分类号 |
B29C65/00;B32B1/00;B32B3/18;B32B5/20;B32B13/00;B32B29/00;B32B37/00;C04B9/04;C04B11/00;C04B28/14;H05B6/00 |
主分类号 |
B29C65/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|