公开(公告)号：US06379504B1

公开(公告)日：2002-04-30

申请号：US09981837

申请日：2001-10-19

申请人： Jay J. Miele ,  Marco Marois ,  R. Fred Chasse ,  J. Wayne Chamblee ,  John D. Weston ,  J. Robert Prough

发明人： Jay J. Miele ,  Marco Marois ,  R. Fred Chasse ,  J. Wayne Chamblee ,  John D. Weston ,  J. Robert Prough

IPC分类号： D21C700

CPC分类号： D21C3/24 ,  D21C1/02 ,  D21C3/266

摘要： Chemical cellulose pulp is made from sawdust utilizing a static down-flow retention vessel. By adding steam and cooking liquor to a flow of sawdust a heated slurry, at a cooking temperature of about 250-350° F., is produced. The heated slurry is, at superatmospheric pressure, moved downwardly in the static down-flow retention vessel while cooking temperature is maintained, for a time period of about 0.5-6 (preferably 1 to 3) hours, the slurry having a consistency of about 5-30%. At superatmospheric pressure, without significant reduction in pressure from the retention vessel, the slurry is cooled to well below cooking temperature by diffusing cooling liquid through it, as in a conventional pressure diffuser. The discharge from the retention vessel is preferably substantially solely gravity action (e.g. using a discharge with single convergence and side relief). Various mixing, diluting, thickening, steaming, and pumping devices are utilized in the system from initial steaming of the sawdust to passage into the top of the retention vessel.

摘要翻译： 化学纤维素纸浆使用静态下流保留容器由锯屑制成。 通过将蒸汽和蒸煮液添加到锯屑流中，在约250-350°F的烹饪温度下产生加热的浆料。 加热的浆料在超大气压力下在静态下流保持容器中向下移动，同时保持烹饪温度约0.5-6（优选1至3）小时的时间，该浆料具有约5的稠度 -30％。 在超大气压下，没有显着降低来自保留容器的压力，如常规压力扩散器那样，将冷却液通过其冷却而将浆料冷却到远低于烹调温度。 来自保留容器的排出物优选基本上仅仅是重力作用（例如，使用具有单一收敛和侧面释放的放电）。 在系统中使用各种混合，稀释，增稠，蒸汽和泵送装置，从初始蒸发锯屑到通入保留容器的顶部。

公开(公告)号：US06325888B1

公开(公告)日：2001-12-04

申请号：US08520941

申请日：1995-08-31

申请人： Jay J. Miele ,  Marco Marois ,  R. Fred Chasse ,  J. Wayne Chamblee ,  John D. Weston ,  J. Robert Prough

发明人： Jay J. Miele ,  Marco Marois ,  R. Fred Chasse ,  J. Wayne Chamblee ,  John D. Weston ,  J. Robert Prough

IPC分类号： D21C102

摘要： Chemical cellulose pulp is made from sawdust utilizing a static down-flow retention vessel. By adding steam and cooking liquor to a flow of sawdust a heated slurry, at a cooking temperature of about 250-350° F., is produced. The heated slurry is, at superatmospheric pressure, moved downwardly in the static down-flow retention vessel while cooking temperature is maintained, for a time period of about 0.5-6 (preferably 1 to 3) hours, the slurry having a consistency of about 5-30%. At superatmospheric pressure, without significant reduction in pressure from the retention vessel, the slurry is cooled to well below cooking temperature by diffusing cooling liquid through it, as in a conventional pressure diffuser. The discharge from the retention vessel is preferably substantially solely gravity action (e.g. using a discharge with single convergence and side relief). Various mixing, diluting, thickening, steaming, and pumping devices are utilized in the system from initial steaming of the sawdust to passage into the top of the retention vessel.

摘要翻译： 化学纤维素纸浆使用静态下流保留容器由锯屑制成。 通过将蒸汽和蒸煮液添加到锯屑流中，在约250-350°F的烹饪温度下产生加热的浆料。 加热的浆料在超大气压力下在静态下流保持容器中向下移动，同时保持烹饪温度约0.5-6（优选1至3）小时的时间，该浆料具有约5的稠度 -30％。 在超大气压下，没有显着降低来自保留容器的压力，如常规压力扩散器那样，将冷却液通过其冷却而将浆料冷却到远低于烹调温度。 来自保留容器的排出物优选基本上仅仅是重力作用（例如，使用具有单一收敛和侧面释放的放电）。 在系统中使用各种混合，稀释，增稠，蒸汽和泵送装置，从初始蒸发锯屑到通入保留容器的顶部。