The operation process of the
Filter Press in sludge water treatment mainly includes five major steps: feed filtration, secondary pressing, air blowing, cake unloading, and filter cloth washing.
The "feed filtration" step is started. The piston rod of the hydraulic cylinder and the compression plate push the filter plate to move toward the thrust plate and compress it. A series of sealed filter chambers are formed between the filter plates. PAM dosing system operation, feed pump pre-injection
medicine, the feed pump starts, and the mud is sent to each filter chamber through the center hole of the thrust plate. With the pressure of the feed pump, the mud passes through the back of the filter cloth and enters the drainage ditch and drainage hole drainage system on the filter plate, and the solid matter is trapped A mud cake gradually forms in the filter cavity.
"Second pressing" ends, enters the "air blowing" step, "feeding filtration" step ends, stops injecting medicine, enters the "secondary pressing" step, the filter plate diaphragm expands and squeezes to dehydrate the mud cake for the second time . The pressurized air is introduced into the filter cavity through the drainage channel in the upper right corner of the filter plate and discharged through the drainage hole at the bottom of the plate, taking away part of the free water on the surface of the filter cake. The "secondary blowing" step ends and enters the "sludge unloading" step. The piston rod of the hydraulic cylinder drives the pressing plate to move back to release the filter plate. The manipulator pulls the filter plate piece by piece to unload the cake. After the cake unloading is completed, flushing is started depending on the situation. filter cloth program or enter the second filter press operation cycle.
The filtrate is first pumped into the water inlet pipe by the feed pump. The feed pump gradually increases the filtrate in the water inlet pipe, allowing the liquid to enter the two water distribution pipes under high pressure conditions. The water distribution pipe is connected to the top of the chamber diaphragm filter. The two water inlet flanges are connected, so that the filtrate enters the two distribution pipes above the filter plate of the
Membrane Filter Press, and the distribution pipe is made up of filter plates extruded and spliced piece by piece. On the same side of the filter plate, there is a channel or groove leading to the central depression of the flow plate. In this way, the filtrate from the distribution pipe of the filter plate is divided into a filter cavity composed of a filter plate and a membrane. In fact, it flows into the membrane wrapped by two filter cloths, contacts the filter cloth, and in the powerful Driven by pressure, the liquid in the filtrate will pass through the filter cloth, and the filter cloth can only allow the liquid to pass through, and the solids will be intercepted and stored in the filter cavity.
When the liquid passes through the filter, the solids in it are intercepted by the fence, realizing
Solid-liquid Separation. At this time, the filter becomes clean, and then the collection of water outlet pipes below the flow will separate water from different outlets. The water in the channel flows together to the drain valve of the single filter plate and out of the equipment.
The filtrate is first pumped into the water inlet pipe by the feed pump. The feed pump gradually increases the filtrate in the water inlet pipe, allowing the liquid to enter the two water distribution pipes under high pressure conditions. The water distribution pipe is connected to the top of the chamber diaphragm filter. The two water inlet flanges are connected, so that the filtrate enters the two distribution pipes above the filter plate of the 
Contact Now
