公开(公告)号：US4341628A

公开(公告)日：1982-07-27

申请号：US228913

申请日：1981-01-27

申请人： Susumu Fujinami ,  Hiroaki Miyamoto ,  Ryoichi Morimine ,  Toshiki Fukuzawa ,  Toshihiko Ueda ,  Shoji Umakoshi ,  Kiyohiko Tokunaga

发明人： Susumu Fujinami ,  Hiroaki Miyamoto ,  Ryoichi Morimine ,  Toshiki Fukuzawa ,  Toshihiko Ueda ,  Shoji Umakoshi ,  Kiyohiko Tokunaga

IPC分类号： B30B9/26 ,  B01D33/04 ,  B01D33/37 ,  B01D33/64 ,  B01D33/72 ,  B01D33/80 ,  B01D37/03 ,  B30B9/24 ,  C02F11/12

CPC分类号： C02F11/123 ,  B01D33/042 ,  B01D37/03 ,  B01D33/04 ,  B01D33/37 ,  B01D33/64 ,  B01D33/72 ,  B01D33/804

摘要： A belt pressure filter comprises a gravity dewatering zone for dewatering a sludge as a function of the gravity and a forced dewatering zone for a forced dewatering of the sludge by means of external pressure. An endless filter belt travels from the gravity dewatering zone to the forced dewatering zone. The coagulated sludge is supplied onto the filter belt by means of the gravity dewatering zone. Information representing the level of the sludge deposited on the belt is obtained as an information concerning the dewatering ability of the coagulated sludge supplied onto the filter belt. The traveling speed of the filter belt is calculated and controlled on the basis of the above described level information which represents the layer thickness and hence also the solids concentration. The optimum amount of a dosage of a coagulating agent is determined based on the traveling speed of the filter belt as calculated. As a result, the water content in a dewatered cake is maintained low and constant, while an optimal amount of coagulating agent most suited to the sludge characteristics at that time is added to the material without wasting any excess coagulating agent.

摘要翻译： 带式压力过滤器包括用于使作为重力的函数的污泥脱水的重力脱水区和用于通过外部压力迫使污泥强制脱水的强制脱水区。 循环过滤带从重力脱水区行进到强制脱水区。 凝结污泥通过重力脱水区供给到过滤带上。 获得表示沉积在带上的污泥的水平的信息作为关于供给到过滤带上的凝结污泥的脱水能力的信息。 基于上述表示层厚度的水平信息并因此也计算固体浓度来计算和控制过滤带的行进速度。 基于计算出的过滤带的行进速度来确定凝结剂的最佳用量。 结果，脱水滤饼中的水分含量保持低且恒定，同时将最适合于此时的污泥特性的最佳量的凝结剂加入到材料中，而不浪费任何过量的凝结剂。

公开(公告)号：US3968039A

公开(公告)日：1976-07-06

申请号：US543234

申请日：1975-01-23

申请人： Kazuo Inujima ,  Kiyohiko Tokunaga ,  Yoshiyuki Sotobayashi

发明人： Kazuo Inujima ,  Kiyohiko Tokunaga ,  Yoshiyuki Sotobayashi

IPC分类号： B01D25/12 ,  B01D25/32

CPC分类号： B01D25/215 ,  B01D25/127 ,  B01D25/285

摘要： A filter press adapted to travel a filter cloth. Sludge is fed under pressure from mouthpieces into between double filter cloths put between a set of filter plates arranged side by side. The sludge is separated into filter cake and filtrate. The former remains between the double filter cloths and the latter passes through the filter cloth and is discharged from the side of the filter plates. The filter cake falls off the filter cloth when the filter plates are spread out to strain it.

摘要翻译： 一种适于运行滤布的压滤机。 污泥在压力下从吸嘴进入双层滤布之间，放置在并排排列的一组过滤板之间。 将污泥分离成滤饼和滤液。 前者保留在双层滤布之间，后者穿过滤布并从过滤板的侧面排出。 当滤板展开以使其过滤时，滤饼从滤布上脱落。