The working principle of the jack filter press is mainly to use the mechanical force of the jack to achieve the compression of the filter plate, Forming filter chamber. Then the solid-liquid separation is completed under the feed pressure of the feed pump.the specific working process is as follows.
1.Preparation stage: the filter cloth is set on the filter plate, and the components are placed to ensure that the equipment is in normal working condition, the jack is in a relaxed state, and there is a certain gap between the filter plates for subsequent operation.
2.Press the filter plate: Operate the jack so that it pushes the press plate. Jacks can be screw jacks and other types, screw jacks by rotating the screw, so that the nut along the screw axis to move, and then push the compression plate, the filter plate and filter cloth located between the compression plate and the thrust plate tightly. A sealed filter chamber is formed between the pressed filter plate and the filter plate.
3.Feed filtration: Start the feed pump, and feed the material containing solid particles (such as mud, suspension, etc.) to be treated into the filter press through the feed port, and the material enters each filter chamber through the feed hole of the thrust plate. Under the action of the feed pump pressure, the liquid passes through the filter cloth, while the solid particles are trapped in the filter chamber. After the liquid passes through the filter cloth, it will enter the channel on the filter plate, and then outflow through the liquid outlet, so as to achieve the initial separation of solid and liquid. With the progress of filtration, solid particles gradually accumulate in the filter chamber to form a filter cake.
4.Filtration stage: With the continuous thickening of the filter cake, the filtration resistance gradually increases. At this time, the jack continues to maintain the pressure and further extrude the filter cake, so that the liquid in it is extruded as far as possible and discharged through the filter cloth, thereby improving the solid content of the filter cake and making the solid-liquid separation more thorough.
5.Unloading stage: When the filtration is completed, the set filter time is reached or the filter cake reaches a certain state, stop the feed pump, loosen the jack, so that the compression plate is returned and the compression force on the filter plate is lifted. Then the filter plate is pulled apart one piece, the filter cake falls off from the filter plate under the action of gravity, and the equipment is discharged through the slag discharge port to complete the discharge process.
6.Cleaning stage: After the discharge is complete, it is usually necessary to clean the filter plate and filter cloth to remove residual solid particles and impurities and prepare for the next filtration operation. The cleaning process can be washed with water or use special cleaning agent.
Post time: Mar-08-2025