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。

公开(公告)号：US06368453B1

公开(公告)日：2002-04-09

申请号：US09520761

申请日：2000-03-07

申请人： Auvo K. Kettunen ,  Richard O. Laakso ,  C. Bertil Stromberg ,  J. Robert Prough ,  Jay J. Miele

发明人： Auvo K. Kettunen ,  Richard O. Laakso ,  C. Bertil Stromberg ,  J. Robert Prough ,  Jay J. Miele

IPC分类号： D21C706

CPC分类号： D21C7/06

摘要： In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

摘要翻译： 在生产化学纸浆时将粉碎的纤维素纤维材料的浆料喂入蒸煮器（连续或间歇）中，可以消除在进料系统（优选包括高压进料器）中使用的一个罐，而不会随之而来的损失 其功能是提供一个单一的罐，其具有控制在淤浆泵中提供浆料的浆料管道中的液体液面的组合功能，并且储存并基本上连续地向连接到蒸煮器的补充液体泵供应液体。 单个罐优选地围绕着浆化管道并且与其基本上同心并且与液体连通。 可以在管道的底部和与浆料泵的连接之间提供3-48英寸的间隙。 可以在间隙中设置屏幕或过滤器，该间隙基本上被箱体包围。 从高压给料器的低压出口到制浆装置（如围绕它的导管和罐或常规的夹管）的返回系统可以没有一个或多个在线排水器，液位罐，离心机 分离器和缓冲罐。