| 摘要 |
Process and apparatus for chamber-type filter presses formed with a plurality of filter plates, each having a peripheral frame and an integral partition plate dividing the frame into filter cake receiving recesses with filter cloths within the recesses and pressed into grooves on the interior periphery of the filter plate by caulking strips to retain the cloths against the surface of the plates; the plates have a first inlet port extending through the frame on one edge thereof radially outwardly of the filter cloth for communication with a corresponding inlet in adjacent filter plates, a second inlet port extending through the frame on a side thereof opposite the first inlet port for communicating with a corresponding inlet in the adjacent filter plates, both of the inlets communicate, outwardly of the filter cloths, with the recesses formed in the filter plates, and at least one outlet port on each side of the partition plate for discharging fluid flowing through the filter cloths from the filter plate. The filter press is utilized in a process for filtering fluid containing solid substances suspended therein which is initially supplied under pressure to the lower of the inlet ports and flows along the surfaces of the filter cloths towards the upper of the inlet ports whereby the fluid is recirculated and distributed through the upper ports until the press is filled with fluid, and thereafter the fluid to be filtered is supplied to both the lower and upper ports to maintain an even distribution of pressure in the press while filtered effluent is continuously drained therefrom.
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