DDS SILVER 2500 TPD SLOPE DEFUSER

THE DDS SILVER SLOPE DIFFUSER IS A CONTINUOUS, COUNTER-CURRENT BEET DIFFUSION SYSTEM BUILT AROUND A SLOPED, ENCLOSED TROUGH HOUSING TWO LARGE INTERMESHING SCROLLS THAT CONVEY COSSETTES UPWARD WHILE EXTRACTION WATER PERCOLATES DOWNWARD BY GRAVITY. COSSETTES ENTER AT THE LOWER “COSSETTE END” AND ADVANCE ALONG PERFORATED-PLATE SCROLL FLIGHTS SEPARATED BY BREAKER BARS, WHICH PROMOTE MIXING, PREVENT HANG-UP, AND STABILIZE RESIDENCE TIME. RAW JUICE IS WITHDRAWN AT THE LOWER END THROUGH FINE SCREENING KEPT CLEAN BY ROTATING SCRAPERS; SPENT PULP IS DISCHARGED AT THE UPPER END VIA A DEWATERING DEVICE. HEAT IS SUPPLIED BY SECTIONAL STEAM JACKETS COVERING OVER HALF THE TROUGH CIRCUMFERENCE, WITH TEMPERATURE AND LEVEL CONTROLS MAINTAINING JUICE CONDITIONS AND PH WITHOUT BIOCIDES UNDER NORMAL OPERATION. OPTIMIZED OPERATION USES A 10–11° SLOPE, YIELDING SHORT RETENTION TIMES (COSSETTES ~40–45 MIN; JUICE ~30–35 MIN) AND LOW PULP LOSS AT MODERATE DRAFT, WITH CAPACITY SCALING TO MULTI‑THOUSAND TPD. A 2,500 TPD UNIT MEASURES APPROXIMATELY 28 FT 4 IN HIGH, 22 FT 6 IN WIDE, AND 72 FT LONG, WITH A 102 IN MAIN SCROLL DIAMETER, THREE FLIGHTS, FINAL SCROLL SPEED ~0.85 RPM, AND ABOUT 97.5 CONNECTED HORSEPOWER. THE GENERAL ARRANGEMENT PROVIDES 8 IN RAW JUICE OUTLETS, 6 IN WATER INLETS, STEAM INLETS AND CONDENSATE OUTLETS, VENTING, MAINTENANCE CLEARANCES FOR GEARCASES, SCREENS, AND SCROLLS, AND RIGHT/LEFT-HAND GEARCASES AT COSSETTE AND PULP ENDS. THE MACHINE EMPHASIZES ACCESSIBILITY, SIMPLE CONSTRUCTION, AND LONG SERVICE LIFE; PERFORATED-PLATE SCROLL SURFACES AND BREAKER BARS REDUCE PULP HANG-UP AND IMPROVE JUICE PURITY, WHILE ENCLOSED VIEWING WINDOWS AND PNEUMATIC/LEVEL CONTROL SYSTEMS SUPPORT STABLE, AUTOMATED OPERATION.