Spraying apparatus for cleaning filter press plates

Spraying apparatus for cleaning filter press plates which are slidable along horizontal guides therefor comprising,

• a. a spray unit having a first spray tube and a second spray tube disposed in generally parallel alignment with each other in a common vertical plane extending in the direction of movement of said spray unit,
• b. one row of spray nozzles at one side of said first spray tube located at spaced apart locations and directed at the vertical surface of an adjacent filter plate,
• c. means to reciprocate said spray unit over a distance equalling the distance across the filter plate to be cleaned so that spaced apart areas are sprayed by said one row of nozzles as said spray unit makes one run relative to said filter plate to be cleaned,
• d. spray nozzles positioned on said second spray tube between said spaced apart locations of said one row of nozzles on said first tube in position to spray the areas between said spaced apart areas on the return run of said spray unit,
• e. at least one control valve controlling the flow of spray water alternately to said spray tubes at the points that reverse movement takes place in the reciprocation of said spray unit, and
• f. the spray nozzles of said first and second tubes on the same side being staggered relative to one another approximately half the nozzle spacing in a longitudinal direction so that the spray nozzles at one side of said first spray tube apply spray water on said one run of said spray unit and the spray nozzles at the same side of said second spray tube apply spray water on the return run of said spray unit.

Spraying apparatus for cleaning filter press plates which are slidable along horizontal guides therefor comprising,

• a. at least one spray unit having at least one row of spray nozzles located at spaced apart locations and directed at the vertical surface of an adjacent filter plate,
• b. means to reciprocate said spray unit over a distance equalling the distance across the filter plate to be cleaned so that spaced apart areas are sprayed by said one row of nozzles as said spray unit makes one run relative to said filter plate to be cleaned,
• c. a vertically extending threaded spindle mounted for rotation at each side of said spray unit with means synchronously connecting said threaded spindles for rotation in opposite directions,
• d. means operatively connecting said spray unit to said spindles for shifting said spray unit longitudinally approximately half the spacing between the nozzles of said one row of spray nozzles adjacent at least one point that reverse movement takes place in the reciprocation of said spray unit so that during the return run of said spray unit the spray nozzles are positioned between said spaced apart locations of said one row of nozzles in position to spray the areas between said spaced apart areas, and
• e. means supplying fluid under pressure to said pray nozzles as said spray unit makes said one run and said return run.

Spraying apparatus for cleaning filter press plates which are slidable along horizontal guides therefor comprising,

• a. at least one spray unit having at least one row of spray nozzles located at spaced apart locations and directed at the vertical surface of an adjacent filter plate,
• b. means to reciprocate said spray unit over a distance equalling the distance across the filter plate to be cleaned so that spaced apart areas are sprayed by said one row of nozzles as said spray unit makes one run relative to said filter plate to be cleaned,
• c. spray nozzles positioned on said spray unit during the return run thereof between said spaced apart locations of said one row of nozzles in position to spray the areas between said spaced apart areas on the return run of said spray unit,
• d. means supplying fluid under pressure to said one row of spray nozzles as said spray unit makes said one run and to said spray nozzles located between said spaced apart locations as said spray unit makes said return run, and
• e. a filter plate locking member mounted for movement selectively to a first location in position to engage a filter plate moved off a stack of filter plates and retain said plate at a predetermined location relative to said spray unit for cleaning by the spray from said spray nozzles and to a second location which is out of engagement with said filter plate.