Presentation on theme: "Great Benefit from installing The Kemco Witman in Calcium Carbonate Production Plants by reducing drying cost and CO 2 emissions. “Kemco Witman” Centrifugal."— Presentation transcript:
Great Benefit from installing The Kemco Witman in Calcium Carbonate Production Plants by reducing drying cost and CO 2 emissions. “Kemco Witman” Centrifugal Powered Screw Ejecting Dryer 1 Part 1 : Calcium carbonate
1) Wide applications of Calcium Carbonate: Rubber Glass Paper PaintAsphalt filler Plastic 2
1.Reducing drying cost and CO 2 emissions in Calcium Carbonate Production Plants 2.Preferable feed size is <10mm for crushed rock and <5mm for sandy material. 3. Continuous operation. 3) Main concepts for Developing the Kemco Witman: 4
1.Continuous operation: Continuous feeding and stable moisture content of product. 2. High dehydration performance (Max. acceleration 1000G) To reduce the moisture content of limestone: 9-5mm material : Down to less than 1.2% 10-3mm material : Down to less than 1.0% 3. An optional heating device is also available. To reduce the moisture to less than 1%. 4. Compact size. 5. Easy maintenance. Easy maintenance via front maintenance door. 4) Main features of the Kemco Witman: 5
5) Process flow: Feed (5.2t/h) + Working water (2.4t/h) Dehydrate by centrifugal power Heat (Optional) Products Centrifugal dehydrationCentrifugal dehydration and heater drying Feed Working water Heat Dust Dusty water Product 6
Drain pipe Feed Hopper Main Body V belt cover Main motor Chute for product Model N452K Vibration absorbing rubber 6) Process flow: 7
脱水成品 Feed Drain Products Heat テーパースリット スクリーン 供給パイプ Working water 7) Mechanism: Basket Screw Inlet pipe Reduction gear Electric Motor WaterProducts Screen 8 1)Screw and basket (equipped with screen inside) rotate at high speed (approx. 1,700 rpm) generating the centrifugal force by which the material is dehydrated. 2)The screw turns at a slightly higher speed than the basket. The difference of speed makes screw eject products. Water and small particles come out through screen. 3)The screen mesh size is 0.2mm to 0.3mm.