Sludge dryer makes everything possible


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Sludge dryer makes everything possible

River and canal sludge with a variety of microorganisms has been ignored for a long time, which also brings many problems to the urban environment. The sludge drying equipment can dry the sludge, which is convenient for the production of sludge bio organic fertilizer drying equipment


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With the enhancement of national economy and the improvement of national environmental protection consciousness, the urban sewage treatment industry has been developing rapidly, and the output of municipal sludge is increasing day by day. People pay more and more attention to the disposal and development and utilization of sludge. The drying treatment of sludge makes it possible for sludge to be used for agriculture, as fuel, for incineration and even for reducing landfill sites.

Drying principle of sludge dryer

Sludge Dryer The material with 90% water content can be dried to the finished product at one time. According to the characteristics of sludge agglomeration in the process of drying sludge, the structure of material plate of general single channel dryer was changed, and combined self-cleaning device was adopted, which greatly expanded the application scope of single channel dryer. It can not only dry all kinds of sludge, but also dry all kinds of high viscosity materials.

The sludge enters the guide plate in the dryer through the chute of the feeder. With the rotation of the cylinder, the sludge is led to the inclined lifting plate, that is, it is lifted to the central position of the cylinder body, and gradually spreads to form a material curtain, through which the high-temperature air flow passes to preheat the sludge and evaporate some moisture. When the sludge spills and moves to the active grate wing plate, the material is mixed with the preheated grate wing plate to transfer heat to the material and make part of the water evaporate. At the same time, the material carried by the wing plate is lifted and scattered, repeated for many times, and the material and hot air flow carry out convection and contact heat exchange. At the same time, the cleaning device buried in the material also slides along the inner side of the arc-shaped lifting plate to clean the materials adhered to the inner wall of the lifting plate.

When the cleaning device turns the vertical line with the cylinder body, it drags on the back of the arc lifting plate to clean the materials adhered to the outer wall of the lifting plate. With the continuous rotation of the cylinder, part of the water evaporates and the sludge is further dried. At the same time, the cleaning device also plays a role in breaking the sludge balls and improving the drying speed. After drying, the sludge becomes loose material with low moisture content and is discharged from the outlet.

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