一、SWJ Introduction of characteristics of double-screen filter press:

Double-screen filter press uses high-density polyester mesh belt as the filter medium, and the slurry to be dewatered is evenly spread on the mesh belt, which is dewatered by gravity filtration first, and a vacuum suction box can be arranged at the bottom to assist in speeding up dewatering.，Then it is pre-pressed and dehydrated by the winding tension pressure of the mesh belt, and then it is dehydrated by independent pneumatic pressurization and press roller pressurization。Through these processes, pulping can reach the goal of squeezing limit dehydration.

二、principle of operation：

The working principle of the equipment is: the slurry to be dehydrated flows to the dewatering surface of the lower mesh belt of the double-mesh filter press through a pump or by itself, and then is evenly distributed on the filter screen, and then passes through the gravity dewatering area first, or can be equipped with a vacuum suction box to assist in accelerating dewatering。And then enters the included angle pressure dewatering area, and the slurry is pre-dewatered by using the tension of the double net. Step by step, it advances to the tension and dehydration area where the press roll wraps around the mesh belt, and the raw materials are extruded and dehydrated by the tension generated by the mesh belt when it wraps around the first dehydration roller, and then the diameter of the roller is gradually reduced through the second extrusion and dehydration， Because the dewatering pressure P= the tension F of the mesh belt divided by the radius R of the dewatering roller, the slurry on the second dewatering roller is subjected to a greater extrusion force, and so on. The slurry passe through an independent pressurizing and dehydrate zone, and that linear pressure of the press roller is enhanced by an independent air cylinder pressurizing mode, so that the wat content of the slurry is reduced to below 60% under the high linear pressure of the press roller.

三、Model parameter list of double-screen filter press: