Food Pharmaceutical Solid Liquid Separation Equipment Belt Filter Press

Solid Liquid Separation Equipment Belt Filter Press

The belt filter press is a new generation patented dehydration equipment developed and produced by our company, which has introduced, digested, and absorbed advanced Finnish technology. It has the advantages of large processing capacity, high dehydration efficiency (which can be directly increased from the slurry concentration of 0.8-3% to over 28-35%), low energy consumption, etc. It not only solves the problem of material leakage when traditional ordinary filter presses dehydrate raw materials, but also solves the problem of low material pressure at both ends of the mesh, Due to the pre dehydration network of the new model, the natural gravity dehydration zone of sludge has been extended, and the network is not compressed, and the mesh holes are not easily blocked by fibers and sludge. So compared to traditional filter presses, the amount of mesh and amide used is reduced by more than 10-30%, and the structure is simple, installation is convenient, making it an ideal product for sludge filtration and dehydration.

1, Purpose
It can be widely used for dewatering sludge (or materials) in urban sewage, printing and dyeing, textile, papermaking, food, pharmaceutical, chemical, metallurgical, petroleum and other fields.
2, Main features:
1. Adopting a dehydration method that integrates ultra-long filtration and roller pressing, the processing capacity is large, and the moisture content of the pressed filter cake is 10% lower than that of ordinary machines.
2. The deviation adjustment and tensioning device of the filter belt is advanced and reliable, and adopts air pressure for automatic control.
3. Mechanical performance and corrosion resistance, the main part is guaranteed for eight years, and the bearing rubber roller is guaranteed for five years.
4. It can operate continuously for 24 hours, with simple operation and convenient maintenance.
3, Working principle:
1. The belt type concentration and dehydration integrated machine is a new type of filtration equipment that adds a pre concentration and dehydration section on top of the ordinary belt type dehydration machine to combine the sludge concentration and dehydration sections. Its obvious feature is that it has three filter screens, one for concentration, and a separate driving and regulating device to accept the load of sludge.
2. Due to the high hydraulic load to be accepted during the concentration stage, which is difficult to separate and control due to the low solid content, the concentration stage is the technical key of the integrated equipment for concentration and dehydration. With the increasing emphasis on environmental protection both domestically and internationally, in order to meet gradually strict sewage discharge standards, traditional sludge concentration tanks are no longer suitable for the concentration of some special sludge. For example, sludge containing a large amount of phosphorus may form secondary release of phosphorus in anaerobic or pressurized oxygen environments of gravity concentration tanks, resulting in the loss of upstream phosphorus removal efficiency. In this situation, the concentration and dehydration integrated machine came into being.
3. After being treated with chemicals, the sludge is first sent to the concentration section. After several tens of seconds of concentration treatment, the sludge concentration reaches 2% -10% or more (depending on operational requirements). Then, it is sent to the pressure filtration and dehydration section through the sludge batching device, and a sludge cake with a certain solid content is formed.
4. The thickening process of the belt type all-in-one machine is as follows: when the sludge enters the thickening section, it is evenly spread on the filter cloth, like a thin layer of mud. Under the action of gravity, a large amount of surface water in the mud layer is separated and quickly discharged through the gaps of the filter cloth, while the solid particles of the sludge are intercepted on the filter cloth. At this point, the retention rate of solids in the sludge is very high. As the filter cloth moves, a portion of the water is further removed, and it binds together to form a slurry sludge with poor fluidity. Due to the poor fluidity of the sludge, it is not easy to be squeezed out after entering the high-pressure shear section of the subsequent filter press, thus ensuring the dehydration effect and significantly improving the solid content of the sludge cake.