Overview：The SJG series double-shaft hollow paddle dryer is an indirect heating, low-speed stirring drying device that uses saturated steam, hot water, or heat-conducting oil as the heating medium. It can also be used for cooling products when using a cooling medium. It is suitable for drying or cooling powdery, granular, filter cake, paste, and slurry materials.
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Working Principle: The SJG series double-shaft hollow paddle dryer is an indirect heating, low-speed stirring dryer that can operate continuously. It is an efficient and energy-saving drying equipment. Inside the device, there are two or four hollow rotating shafts, densely arranged with wedge-shaped hollow paddles. The heating medium flows through the hollow shafts and paddles. The special flow path inside the heating shaft is ingeniously designed, with the two shafts rotating in opposite directions, creating compression and relaxation between the shafts. With the help of wedge-shaped paddles, the material is constantly turned and stirred, continuously renewing the heated surface and significantly improving evaporation efficiency. Depending on the drying temperature, commonly used heating media include steam, heat-conducting oil, hot water, and cooling water, which can complete unit operations such as drying, cooling, heating, and reactions. |
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Equipment Features: ☆ Major domestic technological achievement. ☆ Self-cleaning function of the wedge-shaped paddle heat transfer surface. ☆ Compact structure, small footprint, and easy operation. ☆ Fully sealed operation, minimal dust in the workshop, and low environmental pollution. ☆ The outer wall of the equipment is equipped with an insulation layer, low energy consumption, and thermal efficiency up to 95%. |
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Applicable Materials:
Environmental Industry: Dye plant sludge, municipal sludge, water treatment plant sludge, boiler ash, pharmaceutical plant waste, sugar plant waste, MSG plant waste, etc.
Petrochemical Industry: Polypropylene, polyethylene, polyvinyl chloride, polyphenylene sulfide, polyester, nylon, engineering plastics, acetate fibers, etc.
Chemical Industry: Soda ash, activated carbon, calcium carbonate, white carbon black, titanium dioxide, barium sulfate, EDTA sodium salt, molecular sieve, kaolin, compound fertilizer, etc.
Feed Industry: Distillers grains, sauce residue, vinegar residue, fish meal, soybean meal, feed additives, apple residue, bone meal, bio-sludge, etc.
Food Industry: Starch, cocoa beans, corn kernels, salt, milk powder, pharmaceuticals, and intermediates.
Explosives Industry: Can be used as an explosive cooler with a cooling medium inside the shaft.
Technical Parameters：
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Specification |
Heat Transfer Area (m²) |
Motor Power (kW) |
Dimensions (mm) |
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L |
W |
H |
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SZ-2.5 |
2.5 |
3∽ 5 |
2500 |
600 |
1200 |
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SZ-8.5 |
8.5 |
5∽ 7.5 |
3800 |
900 |
1300 |
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SZ-10 |
10 |
7.5∽ 11 |
4000 |
1250 |
1450 |
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SZ-15 |
15 |
11∽ 15 |
5200 |
1400 |
1720 |
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SZ-25 |
25 |
15∽ 22 |
6000 |
1700 |
2000 |
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SZ-50 |
50 |
22∽ 35 |
6500 |
2000 |
2200 |
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SZ-60 |
60 |
35∽ 55 |
8150 |
2150 |
2400 |
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SZ-100 |
100 |
55∽ 75 |
9300 |
3000 |
2700 |
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Structural Schematic:
Other Types of Dryers：
● Double-cone Rotary Dryer
● Double-mass Vibrating Fluidized Bed Dryer
● Rotary Flash Dryer
● Disc Continuous Dryer
● Double-shaft Thermal Rotary Dryer
● High-efficiency Boiling Dryer
For more details, please call the technical consultation phone: +86 13601819408
