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Vacuum Filter
- Nov 02, 2018 -

A negative pressure is formed at the filtrate outlet as the driving force of the filtration. The absolute pressure of the operating vacuum of industrial vacuum filter is (2.5 ~ 8.0) x 105 pa. The temperature of the suspension during filtration should be lower than the vaporization temperature of the filtrate under operating vacuum. The filter is divided into intermittent operation and continuous operation. Intermittent operation of the vacuum filter can filter various concentrations of the suspension. The vacuum filter fills the container housing with suspension. The two - sided filter vane with filter cloth is immersed in the suspension, and the inner cavity of the filter vane is connected with the vacuum system. After the filtrate is sucked out, the filtrate residue on the surface of the filter is removed after stopping the filter. A continuously operated vacuum filter is suitable for filtering thick and thick suspensions containing more solids. The working principle of rotary drum vacuum filter, inner filter surface rotary drum vacuum filter, disc vacuum filter and dump vacuum filter are all similar. The entire filter surface is divided into several separate filtration Chambers, and each rotary filter chamber is connected to each fixed pipe through distribution valve in order to suck out filtrate, cleaning fluid, or feed compressed air in the filtration chamber. The whole process of filtration is completed by rotating one circle in each filter chamber, and the operation of multiple filter Chambers is connected to form continuous filtration. The structure of the belt vacuum filter is similar to that of the belt conveyor. The belt vacuum filter, the inner filter drum vacuum filter and the dump vacuum filter are all added to the upper part of the filter medium (press cloth), especially suitable for the suspension with large density of solid particles and rapid settlement.