The difference between a sludge dryer and a regular rotary dryer is that they have more crushing devices, which are necessary equipment for producing organic fertilizers. The sludge dryer can directly dehydrate and dry sludge with a moisture content of up to 70% -80% to a safe storage moisture of 13% in one go. The entire process is carried out in a closed system, thereby reducing environmental pollution during the drying process.

Sludge dryerThe dry sludge wet material is transported by a belt conveyor or bucket elevator to the hopper, and then enters the feeding end through the feeding pipeline through the feeding machine of the hopper. The slope of the feeding pipeline should be greater than the natural inclination angle of the material, so that the material can flow smoothly into the dryer.dryerThe dryer cylinder is a rotating cylinder slightly inclined from the horizontal line. The material of the sand and gravel equipment is added from the higher end, and the heat carrier enters from the lower end, coming into counter current contact with the material. There are also cases where the heat carrier and the material flow together into the cylinder.
As the cylinder rotates, the material moves to the lower end under the action of gravity.dryerDuring the forward movement of the wet material in the cylinder, it directly or indirectly receives heat from the heat carrier, allowing the wet material to dry, and then is sent out through a belt conveyor or screw conveyor at the discharge end.
1. The sludge dryer has a high degree of mechanization, a large production capacity, and can operate continuously.
2. Excellent structure, simple, smooth operation of materials through cylinder resistance, and convenient operation.
3. The dryer has fewer malfunctions, lower maintenance costs, and lower power consumption.
4. Wide applicability and good uniformity of product drying.
5. Drying can also achieve the purpose of sterilization and deodorization.
model | Processing capacity (t/h) |
Feed moisture content (%) |
Discharge moisture (%) |
Main motor (kw) |
Reducer (JZQ) |
Mixing motor (kw) |
Φ800*6m | 1.0- 1.5 | 70±5 | 15±5 | 5.5 | 250 | 2.2 |
Φ1000*6m | 1.5- 2.0 | 70±5 | 15±5 | 7.5 | 250 | 3 |
Φ1200*6m | 1.8- 2.5 | 70±5 | 15±5 | 11 | 350 | 4 |
Φ1500*6m | 3.0- 3.5 | 70±5 | 15±5 | 18.5 | 500 | 5.5 |
Φ1800*6m | 3.5- 4.0 | 70±5 | 15±5 | 22 | 650 | 7.5 |
Φ2000*6m | 5.0- 6.0 | 70±5 | 15±5 | 30 | 650 | 11 |
Φ2200*6m | 6.0- 7.0 | 70±5 | 15±5 | 30 | 650 | 11 |
Φ2500*6m | 10- 12 | 70±5 | 15±5 | 37 | 750 | 15 |
Φ3200*6m | 18- 20 | 70±5 | 15±5 | 45 | 850 | 22 |