Putting the hot air and material into the first stage of drying equipment. There is a “Rotary Hollow Rolling Broken Device” in this stage, which breaks the material into scattered and “boiling suspended” state. With the hot air, the material will be keeping rolling, rotation and separation, and its surface will be dry, which can effectively prevent particles from clustering again. Thus the important transformation “high humid —→ not humid, high sticky —→ not sticky, high viscous to not viscous” is completed. With the function of Material Raising System, the material will be continuously threw and raised. The entire drying room will be filled by a complete material “curtain”, which can make the material abundantly and evenly contact with hot air, thus increasing the heat utilization and evaporation intensity.

With the effect of special Material Feeding and Raising System, the scattered material being discharged in the first stage will be sent to the second stage cylinder. However, water vapor produced in first stage is automatically discharged at the end of first dryer. The second stage cylinder adopts “Counter-Flow and Vortex Drying Technique”. It means the material being transported in reverse direction with fresh hot air flow. It can increase the turbulence intensity and the drying efficiency. At the same time, the heat diffusion is also fastened, then the water will be speed out. Thus the evaporation also speed up. Water vapor is discharged at the end of the second dryer. However, the material is automatically sent into the third dryer under the action of specific material pushing board.

The third cylinder adopts ”Inter-flow plus Reciprocating Drying Technique. Under the action of hot air and material pushing board, the wet material moves slowly and reciprocating, while the dry material moves in advance and fast. Material will be discharged automatically when they are dry enough as request.

• The use “Triple Stage&Multi-loop Patent Technology”, which pack three cylinders with different diameters together, so that sludgecan spread thinly with big evaporation area, in order to dry fast.

  

• Rotary Harrow Automatic forward and reverse reciprocating technology for Triple Stage Drying Coreis a particular patent technology.

  

• The use of Triple “W & S” Material Movement technology, sludge undergo a long distance in the drying equipment, thus it can contact with the hot air adequately, thereby the hot utilization rate will be high.

  

• The use of “Downstream and counter flow Reciprocation” patent technology.Sludge go back two steps after taking three steps in the dryer.Andthe dry onesmove fast, the wet ones slow. The day material will discharge automatically once the material meet the drying request.

  

• Particular “Hot Air Distribution System”, can adjust the hot air volume into the triple stagedryer.

  

• The use of “Mechanical Material Feeding Technology” , sludge in the Material FeedingSystem can go forward and backward automatically.

  

• The use of “Automatic Material Feeding Control Configuration”. To control the feeding amount on basis of the sludge moisture.

  

• The use of “Automatic Reciprocating Material Technology”. It can make the sludge mixed and tumble, then fully separated into bulk and linkage integrated production.

  

• “Three Cylinders Grading Exhaust Process”, the water vapor produced during drying process can be discharged in time just to avoid the re-adsorption.

  

• The use of “Forward and Reverse Feeding and Raising System”.Sludge can move in multiple directionsin the cylinder, cover the entire dryer and form a material curtain. sludge can go everywhere in the dryer and contact with hot air adequately.

  

• The use of “Low Temperature butLarge Air Volume” drying technology. In the role of low temperature, sludgecan make full use of large volume air for dryingso as to meet the requirement of drying.

  

• “Speed Adjustment and Control Device” for main dryer, which is a device for adjusting the finished material moisture on basis of the requirement in orderto meet drying demands.

  

• “Negative pressure”working condition, safely and clean work site and operating reliably.