发明名称 |
Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle |
摘要 |
A stream of disintegrated fibrous cellulosic pulp material and steam under pressure is subjected to an instantaneous pressure reduction as said stream and steam pass through a throttling nozzle, in a throttling zone, wherein a liquid solution of a bleaching agent is admixed with said stream and which stream, admixed with bleaching agent, is then passed into an expansion zone ahead of the throttling nozzle resulting in a uniform dispersion of the bleaching agent into the fibers in the stream of fibrous cellulosic pulp material.
|
申请公布号 |
US4030969(A) |
申请公布日期 |
1977.06.21 |
申请号 |
US19750542221 |
申请日期 |
1975.01.20 |
申请人 |
DEFIBRATOR AB |
发明人 |
ASPLUND, ARNE JOHAN ARTHUR;REINHALL, ROLF BERTIL;AHREL, PER JOHAN INGEMAR |
分类号 |
D21C9/10;(IPC1-7):D21B1/12 |
主分类号 |
D21C9/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|