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Germany Passavant PASSAVANT sludge dryer
I. Introduction
biological sludge sewage treatment process is the inevitable product of the quantity, composition, quality depends on the water and the treatment process. Higher urban sewage purification requirements, processing technology improved, would increase the number of generated sludge. Along with the continuous improvement of ordinary sewage waste disposal in the near future will become increasingly integrated and complex.
Passavant - Geiger sludge drying process is to further those mechanical dehydration by evaporation of water can not be removed, the sludge drying process will transform waste into valuable products, while not damage the environment.
2, the main mechanical structure
sludge dryer mainly by Shini bucket, bucket of dry soil, dry drum, the combustion chamber, fan, screw conveyor, electric control cabinets and other components.
3, 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 its delivery to the helix axis hybrid machine, where the cycle of dry sewage sludge to the wet sludge, so get with solid rate of about 65% of the mixture, mixing in a twin screw mixer machine mixing and transport process of the formation of particles, the sludge mixture through the feed screw was sent to drying drum in.
drying in the rotating drum, the sludge is heated and dried. Drying drum is an inner walls of the blade with the upgrade of concentric cylinders, when the drum slowly rotates, the sludge particles in hot air constantly forward delivery, while being dried. To the end of the drum, the dry particles through the pipe chain conveyor was promoted to the double-base transport sieve, coarse particles and fine particles were separated.
small particles directly from the screen on the base layer of dry soil falling into warehouse, store recycling. Large size particles are separated in the first layer of the bottom screen, and then roll splintered machine crushed recycled. Sieve to remain in the bottom of the second layer of particles shall be the final product. Phone :010-59790467
