Triple-Pass Rotary Dryer has 3 drying zones in the 3 cylinders (internal one, middle one and external one) which construct the rotating body. Heat processing of a product with high moisture content is done efficiently in those 3 drying zones. The product is put in from the inlet of the hopper, sent to the internal cylinder where heating of the product is made, then moves to the middle cylinder where evaporation of moisture is promoted further. The solid constituent of the product is gradually broken into pieces and discharged from the outlet via the third final drying zone. The hot air produced in the furnace is sent to the internal cylinder, passes through the middle and external cylinders. The hot air is then sent to the cyclone where dust is removed.
Triple-Pass Rotary Dryer has 3 drying zones in the 3 cylinders (internal one, middle one and external one) which construct the rotating body. Heat processing of a product with high moisture content is done efficiently in those 3 drying zones. The product is put in from the inlet of the hopper, sent to the internal cylinder where heating of the product is made, then moves to the middle cylinder where evaporation of moisture is promoted further. The solid constituent of the product is gradually broken into pieces and discharged from the outlet via the third final drying zone. The hot air produced in the furnace is sent to the internal cylinder, passes through the middle and external cylinders. The hot air is then sent to the cyclone where dust is removed.
Advantages:
1. Heat efficiency improved 40%!
2. Coal consumption (as fuel) is 30% of conventional dryers!
3. shell temperature <=60 C, Exhaust Gas:<= 120 C. filter bags can work twice longer and no need for cooling!
4. Floor area reduced by 40%- 60%!
5. Lower investment for the same capacity!
| Model | DN2008-3S | DN2010-3S | DN2212-3S | DN2510-3S | DN2512-3S | DN2912-3S |
| Output Capacity,(t/h) | 3-4 | 4-5 | 5-6 | 6-7 | 7-8 | 8-9 |
| Water evaporation,(t/h) | 1.53 | 1.95 | 2.13 | 2.62 | 3.09 | 3.57 |
| Initial Moisture,(%) | 40% | 40% | 40% | 40% | 40% | 40% |
| Output Moisture,(%) | 15% | 15% | 15% | 15% | 15% | 15% |
| Drying Temperature, (°C) | 300 | 300 | 300 | 300 | 300 | 300 |
| Total Power, (Kw) | 78 | 90 | 105 | 125 | 140 | 155 |
| Total Weight, (t) | 31 | 36 | 41 | 60 | 68 | 76 |
| Floor Area, (m) | 8×16 | 8×18 | 8×20 | 10×20 | 10×24 | 10×24 |
River sand, molding sand, mining sand,Limestone
Green fodder (alfalfa) drying and pelletizing
Corn cobs
Brewery mash drying (spent brewers grain, distillers’ grain, beer meal residue, etc..)
Bean and potato dregs drying
Tapioca (cassava) residue
Metal chips
Fruit Pomace (apple, grapes, etc.)
Beet pulp, bagasse
Chinese herb residue drying
wood sawdust, wood chips, wood fibers, etc.
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