High Pressure Membrane Filter Press saves energy
A
Netzsch Pumps product story
Edited by the Engineeringtalk editorial team
Dec 13, 2000
For companies wanting to reduce operating costs and achieve higher dry solids content in the filter cake, Netzcsh Filtrationstechnik has developed the High Pressure Membrane Filter Press.
For companies wanting to reduce operating costs and achieve higher dry solids content in the filter cake, Netzcsh Filtrationstechnik has developed the High Pressure Membrane Filter Press.
A key feature of the new system is membrane inflation up to 30 bar.
Nemo pumps are used to feed the slurry at pressures up to 10 bar.
During the filtration cycle, the pump-filling phase is automatically controlled by measuring the slurry density and quantity.
A processor calculates when the press chamber is full and automatically switches off the slurry pump and starts the membrane inflation process.
With materials such as kaolin, the High Pressure Membrane Filter Press at a pressure of 30 bar will dewater as high as 60 bar in the chamber filter press, equivalent to a residual moisture content of approx.
26%.
When a subsequent drying process is required, the energy saved can be substantial.
Because an additional 4% or more of dry solids can be processed when conditioned organically, high-pressure membrane dewatering also requires less space for disposal compared to conventional filter presses.
The High Pressure Membrane Filter Press can be supplied with a number of automatic features including filter cake discharge devices such as spreading mechanisms and vibration and scraping devices.
The high level of automation also reduces the number of people required for the dewatering operation.
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