Filter press with cleansing spray device

In a filter press having two vertical posts and fitted with a spray washing means for one of a stack of filter plates which are displaceable on horizontal longitudinal guides of said press, said spray washing means comprising a support frame formed of vertical side girders which is movable along the stack of filter plates and surrounds the stack of filter plates together with the guides, a spray pipe with two branch conduits equipped with spray nozzles for guided up and down movement at said vertical side girders of said support frame, said nozzles of said conduits being directed towards each other, and a spray water catch basin mounted to the underside of said support frame, that improvement comprising:

• said spray water catch basin having a width larger than twice the lateral spacing between said two branch conduits;
• suspension means for said catch basin including securing means for attaching the center portion of the spray water catch basin to the bottom of the vertical side girders thereby permitting movement of said catch basin as a unit with said support frame and spray washing means along the entire longitudinal extent of said horizontal guides of the filter press whereby a width greater than twice the spray spacing prevents unwanted diversion of the water sprayed against the plates;
• and
• said catch basin being movable in a horizontal direction relative to the support frame in such a way, that at least that part of the catch basin projecting at one side of the support frame before the respective branch conduit will be pushed back by the respective one of said vertical posts, when the support frame is moved closely to said one vertical post.