At present, the commonly used models of sludge dewatering machines in China include centrifugal type, filter belt type, spiral ring type and plate and frame type. The dewatering of the sedimentation sludge, the selection of the flocculant and the proportioning operation are critical, the flocculation effect is good, and the dewatering of the sludge is relatively smooth.
Centrifugal: All three sludges can be adapted, but high energy consumption and high speed lead to high noise.
Filter belt type: It is suitable for physicochemical sludge, and the filter cake has low water content, poor adaptability to mixed sludge and biochemical sludge, and more return sludge. The backwash water consumption is large, energy consumption is high, and maintenance is complicated.
The new separation technology of sludge dewatering machine adopts the organic combination of spiral pressure and dynamic static ring to form a new separation technology integrating concentration and dehydration, which adds a better dehydration mode choice for the environmental protection wastewater treatment field in China. Energy-saving and water-saving: Due to the continuous movement of the static and dynamic rings, the self-cleaning effect of the cylinder can achieve the purpose of not easily blocking the filter gap, replacing the high-pressure flushing of the old generation filter cloth and the belt filter plate, which greatly saves industrial water (single machine section) Water 13,000 tons / year).
The low speed of the main screw shaft of the sludge dewatering machine (3-5 rpm) reduces the mechanical wear of the equipment and prolongs the service life of the equipment. The power consumption of the main unit is 1.1kw/hr, and the power consumption of the single unit is 50,000 degrees/year. The processing volume doubled: the second-generation dehydrator handled twice as much as the first-generation dewatering machine.www.hy-sewagetreatment.com