A decanter centrifuge, dual-motor dual-frequency control, the advantage less energy. Because dual-motor dual-frequency control, when the auxiliary motor to a generator lag state, the secondary motor converts kinetic energy into electrical energy, by co-bus back to the master drive, decreased energy, generally save about 10% of energy consumption; Second, my company Decanters dual-motor dual-frequency work compared with hydraulic differential, has the following advantages: 1) comprehensive energy consumption reduction, in addition to reducing the loss of motor efficiency, but also reduce fuel consumption and cooling water pumps hydraulic station consumption; 2 ) did not run the risk of oil and water leak point, reduce environmental pollution; convenient 3) dual-motor dual-frequency operation, simple structure, greatly reducing the probability of failure; 4) in the event of blocking material centrifuge phenomenon, dual-motor dual-frequency motor is only through inversion can be ruled out, as long as the reaction speed 100 ~ 150ms, and now set by PLC constant torque control, the occurrence of blocking material greatly reduces the chance of crashes, when the motor torque is increased, the current rises, PLC immediate response, reduce Auxiliary differential speed accelerate speed increases or reduces the sludge feed pump speed is reduced feed rate, to avoid blocking material crash occurred. 5) The difference between the dual-motor dual-frequency speed control up to 5 ~ 70rpm, adapt to a wide range; the differential speed hydraulic differential speed range is only 0 ~ 20rpm. Third, the company manufactured centrifuge large-size high-separation factor is a great characteristic: the following LW550 centrifuge separation factor up to 4000G; the separation factor when sludge dewatering Just about 2800G, we centrifuges running at low speed conditions more stable and reliable, reduce engine wear, longer life. Fourth, the surrounding auger of our centrifuges Plasma carbide inserts welded sheet more than double spray GN-W2C increase its wear resistance. Than mechanically fastened with screws but also a lot of reliable, high-speed rotating conditions are not easy to swap chips and breakage. Fifth, we centrifuges auger hole core tube of fabric with sub arc spout, which is an arc-shaped cross-section, segmented inlet reduces the material directly to the spiral blade erosion, reduce wear, the screw pusher long security operation. Auger increase in the manufacturing process of the aging process and computer Automatic re-balancing process, thereby increasing the overall structural stability of product performance and improve working life. Sixth, we centrifuge drum spout mosaic nano-corundum (ceramics), casement improve the wear resistance and partial wear occurs once unloaded reversed accord as long as re-use, then put something they can use for a long period of time, the overall life greatly improved. Drum materials used 2205, overall centrifugal casting from its strength corrosion resistance has greatly improved. Seven, we use centrifuge spiral cylindrical roller bearings plus thrust ball bearings combined with other units using angular contact ball bearings combined axial thrust increased by 20%, increase the load carrying capacity and reliability of the product to run. Eight, we centrifuge differential uses two involute planetary gear differential, smooth operation, small size, and high-precision hard tooth surface grinding gears, through careful design, it has sufficient contact strength and flexural strength, in order to meet the high torque transmission needs; to improve gear life, increase the amount of floating planetary gear transmission, so that softer meshing planetary gear bearing large capacity and reliable plain bearings, the bearings with high-tech materials and fine processing technology, in the contact pressure reaches 20MPa, but also to maintain normal operation. Can transmit torque to 10 × 104N? M not fail when. IX Our centrifuge is designed with a large cone angle double cone angle plus BD board, extended the length of the settlement area, increase processing capability, making exports more clear supernatant. When Shandong Ruitai cellulose separation, I centrifuge supernatant liquid outlet through 76% light transmission rate determination, and Suzhou, a company of the centrifuge was only 38% transmittance, I centrifuge material leakage is Small customers improve material utilization and increase efficiency. When our LW420 × 1750 centrifuges installed in March 2004 Zhejiang Yiwu Water Treatment Center run-centrifuge processing capacity per hour (at a concentration of 4.9% in the case of the feed) 25m3 / h, running has been stable at 23 ~ 25m3 / h or more, the stable operation of more than five years. Ten, we centrifuge drum spout using oblique incision, reducing the discharge solid resistance, so never wear. XI, sewage treatment plant sludge dewatering process originally stored in the sludge of hydrogen sulfide, thiourea, malodorous gases such as mercaptans, the separation and concentration process with the separated liquid discharged from, distribute among the dehydration pollution work environment, the impact of operator health. Our centrifuges configured with a gas-liquid separator, the liquid discharged from the gas-liquid separator to separate the malodorous gases discharged out of the window or provide deodorizing, clean work environment. Twelve, to create our own brand characteristics, we have designed the structure in a centrifuge to be constantly updated manufacturing process improvements, the nearest year or two pair LW420 × 1750 were up more than 10 large and small improvements. In addition to the above described, as well as the machine casing from the closed system, the installation of pneumatic booster, enables the operator to save time and effort when refueling from cover, a person needs to be very strenuous exertion when the original openings, now a man on the light bring to a light. Imported centrifuge did not think of where we've improved. Thirteen, our centrifuges strictly optional accessories, use internationally renowned brands: (1) Our selection of centrifuge bearing NSK or SKF; (2) the bearing seal used in Japan and China Mallorca or Taiwan SOG; (3) V-belts selected US mountain company V-belt; (4) motor selection ABB or Siemens Company; (5) THE fastener selected US companies; (6) the frequency selected US ABB, Danfoss and Emerson; our company's drive In order to meet the requirements of the sludge dewatering, the board and the wiring copper strip would be superior anti-corrosion function of special treatment. In field use, the corrosion resistance increased by several times, greatly reducing the probability of failure, reducing maintenance costs; (7) PLC and touch screen selection of Siemens and US 罗克伟 Seoul's AB brand; (8) other components used in France Schneider Electric Limited; (9) the choice of dosing pump sludge pump NETZSCH or West Pike; (10) wear resistant materials used in Germany to introduce GN-W2C carbide alloy strip and sheet; (11) flowmeter selection of Shanghai Guanghua Instruments Corporation, Cologne, Germany E + H company or other famous brand. Fourteen, LW420 × 1750 decanters is a very good model: (1) is widely used in 10 × 104 m3 / d-20 × 104 m3 / d water plant and medium-sized sewage treatment plants, applied 20 × 104 m3 / d less water plant in Zhejiang Fuyang City Water Plant, Fuyang Jiangnan water plant, water plant Zhejiang Ryan Jiangbei, Fengshan water plant, water plant Changshan, Huangyan water plant, by long-running examination made good results. Sludge dewatering water is very clear, the effluent solids ratio reached 100mg / L or less, sometimes only 30-50 mg / L, reached back with the requirements for the water plant saves water consumption. Typically 15 × 104 m3 / d of water plants a year can save about one million yuan; (2) In the small sewage treatment plants was also very effective, the wastewater treatment plant in Zibo, Shandong Zibo Everbright Water Company Limited belongs (old plant) Zibo Zhoucun sewage treatment plant, sewage plant has installed Boxing LW420 × 1750 decanters have about 10, at a concentration of 2-3% into the mud, the processing capacity per hour stable at 22-28 m3 / h, the soil moisture content less than 80% solid content in the water is about 500 mg / L, use for many years, is very stable; Weifang wastewater treatment plant and wastewater treatment plant in Shandong Weifang Development Zone joint Runtong Water Co. belongs also installed LW420 × 1750 horizontal decanter centrifuge six. after the year 2007 to the present installation, running very stable, user satisfaction. Zhejiang Zhoushan sewage plant, Chengdu Jintang textile industrial park wastewater treatment plant LW420 × 1750 centrifuges used for 10 years, and only recently returned to the manufacturer for maintenance, users reflect the good.