The filter press is based on the extrusion molding of the filter plate, so that the water in the sludge is discharged according to the filter cloth, thereby achieving the purpose of de-drying. It is also called pulping and de-drying, that is, a certain number of filter plates are closely arranged in a row under the action of strong mechanical equipment, and a filter chamber is formed between the filter plate surface and the filter plate surface, and the filtering raw materials are fed under strong positive pressure. In the filter room, the solid part of the filtered raw material entering the filter room is intercepted by the filter material (such as filter cloth) to produce anaerobic granular sludge, and the liquid part is discharged to the filter room through the filter material, thereby achieving the purpose of solid-liquid separation equipment. The filter press manufacturer will detail a basic filter press workflow.

1. Squeeze the filter press

The gradual first step in the circulation system is to compress the filter press. The filter plate of the filter press is movable. According to the promotion of the cylinder piston rod, the filter plate of the filter press is arranged one by one. The working pressure of the hydraulic cylinder is given and controlled by the hydraulic transmission system. When the pressure is dropped, the pressure can be fully automatic (called the automatic pressure test filter press) to ensure the pressing force of the hydraulic cylinder. The pressing force of the hydraulic cylinder is the key main parameter index value of the filter press. Sufficient pressing force is the precondition to ensure that there is no overflow and no anchoring, and it is the basis of the filter press's de-drying characteristics.

2. Feeding (feeding)

Turn on the feed pump to feed the filter press. The raw material is injected into the filter chamber, and the filter cake is slowly produced. The solid part is left on the surface of the filter cloth (each filter plate is covered with a filter cloth), and the liquid part penetrates into the filter cloth and flows into the leachate inlet and outlet along the drainage groove on the filter plate. In the beginning, the working pressure of the filter was low, and with the gradual production of anaerobic granular sludge, the working pressure in the filter chamber gradually expanded, and the filter cake was squeezed and dried.

3. Overthinking

Generally, it can be distinguished according to several types of ways that the whole process of filtering has already been carried out. D. One is to see that the drainage from the drainage port has already been very little, indicating that the filter cake has already been squeezed enough, and basically no leachate is discharged. The second is to observe the feeding pump. When the feeding pump is working, the time interval is gradually extended. The interval between the two extrusions of the diaphragm pump is around 30-60 seconds, indicating that it is already full.

4. Pour material

The piston rod of the oil cylinder moves backward, which drives the pressing plate backward, which frees up the material-rejecting indoor space between the filter plates. Then open the filter plates one by one to remove the anaerobic granular sludge between the filter plates. When pouring the material, pay attention to removing the residual sediment on the filter cloth to prevent it from accumulating on the protruding surface. The next pressing will lead to the occurrence of conditions such as loose sealing and anchoring. There are two methods of pulling the board, automatic and manual. Customers can choose according to their own acceptance of the labor of pulling the board. Generally, it is recommended that Guangzhou Sun Yat-Sen University select the automatic pull plate for the model, and the model with a large number of plates selects the automatic pull plate.

The above is about the working process of the automatic filter press, I hope to help you. As a Chinese filter press company, Kintep produces products with stable performance. If you want to learn more about filter presses, then come and pay attention to our website.