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Germany Passavant PASSAVANT sludge dryer
I. Introduction
biological wastewater treatment sludge is the inevitable product of its quantity, composition, quality depends on the water and the treatment process. The higher requirements of urban sewage purification, processing technology improved, the amount of sludge will increase. With the continuous improvement of technological level, the ordinary sewage waste disposal in the near future will become increasingly integrated and complex.
Passavant - Geiger sludge drying process is to further evaporation of those who can not be removed by mechanical dewatering water, sludge drying process of waste transformed into valuable products, but does not damage the environment.
Second, the main mechanical structure
sludge dryer mainly by Shini bucket, bucket of dry cement, dry drum, the combustion chamber, fan, screw conveyor, cabinet and other components.
three sludge drying process described
be drying Shini Shini by screw conveyor to be transported to the bucket, and then screw through the functional has broken their transfer to a mixing screw machine axis, where the cycle of dry sludge mixed to the wet sludge, which can be solid rate of about 65% of the mixture, mixing in the dual-axis spiral mixer with the transport process of the formation of mixed particles, the sludge mixture through the feed screw is sent to drying drum in.
rotating drum drying, the sludge is heated and dried. Drum drying on a wall to enhance the leaf with concentric cylinders, when the drum slowly rotates, the sludge particles to flow continuously in the heat transfer forward, and was dry. To the end of the drum, the dry particles through the pipe chain conveyor to be transported to the double-base to enhance screening, the coarse particles and fine particles to be separated.
small particles on the screen directly from the double-base positions fall into the dry soil, store recycling. Large size particles are separated in the first layer of the bottom screen, and then roll splintered machine crushed recycled. Remain in the bottom of the second layer of particles is the screen the final product. Phone :010-59790467
