JIANGSU GUOJIN DRYING TECHNOLOGY CO., LTD
Specalizes in dryer, mixer, granulator, crusher, conveyor, screen and other equipment.
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Thermal Oil Indirect-Heating Vacuum Paddle Dryer Equipment For Sludge
Paddle dryer consists of two rotating shafts with wedged paddles, jacketed drying chamber, drive motor and support frame. The drying process is completed in sealed drying chamber to prevent pollution by evaporated.
Paddle dryer is indirect heating drying processor. Heat medium can be steam, hot water or thermal oil which can flow through the hollow shafts and paddle via revolving joints, as well as jacketed drying chamber. Wet material is evenly fed into the drying chamber by screw feeder. With the rotation of two shafts and paddles, wet material is completely mixed and stirred to contact with the hot surface and move towards the discharge and heat transfer happens and moisture evaporates rapidly.
Product Working Principle
CHPD series Paddle Dryer / Processor are highly efficient, mechanically agitated, indirect heat transfer devices that add or remove heat from a process mass. They are used for drying, heating, cooling, pasteurization, crystallizing, and reacting of pastes, cakes, powders, and granules.
The exhaust gases can be treated by cyclone, condenser and scrubber to considerably reduce air contamination. For those wet materials of heat sensitive, easy oxidized, containing organic solvents which need to be recovered, vacuum design is available.
To evaporate 1kg of water only requires about 1.2kg of steam for slurry materials.
Product Feature
- Easy to operate
- Requires minimal attention
- Simple instruments monitor the process
- High efficiency
- Low off-gas volume
Low Maintenance Cost
- Designed for high torque and low operating speed
- Simple durable design for easy and low maintenance
- No internal parts to adjust or maintain
- No metal to metal contact
- Shafts, pillow block bearings, and drive components are designed for long life under adverse conditions, insuring long term mechanical integrity
- Robust frame supports split pillow block bearings
- Grease-purged stuffing boxes. Alternate seal designs are available
Low Installation Cost
- Designed with compact structure
- Small off-gas system
- Vertical shaft removal reduces building size requirements
Technical Advantage
1) High thermal efficiency which can reach 95%
2) Heat transfer medium does not contact the product.
3) Gas is not used to convey the product. Off-gas flow is minimal.
4) Precise control of temperature
5) Uniform product quality, through mixing and movement of the product
6) Continuous process on a once-through basis
7) High heat transfer area to process volume ratio - reduced floor space
8) Easy to operate, requires minimal attention
9) Safer than direct drying when processing combustible material
10) Simple durable design for easy and low maintenance
11) Dual counter-rotating shafts with unique intermeshing discs produce intimate mixing, uniform heat transfer, a high heat transfer rate, and a self-cleaning effect.A large heat transfer area to volume ratio is achieved by the use of hollow discs and a jacketed vessel, through which the heating medium flows. The result is a compact machine with less space requirements and lower installation cost.
12) The CHPD series Paddle Dryer transports material, regardless of its handling characteristics. Sticky, pasty materials can be transported. Pre-conditioning the feed by mixing with recycled dried product, to make it conveyable, is not required. This results in lower capital, operating, and maintenance cost.
Product Application
Blade dryer has been successfully used in food, chemical, petrochemical, dye, industrial sludge and other fields. Equipment heat, cooling, mixing features make it to complete the following unit operations: calcination (low temperature), cooling, drying (solvent recovery), heating (melting), response and sterilization. Mixing blades at the same time the heat transfer surface, the effective volume per unit area of heat transfer increases, reducing the processing time. Heat transfer surfaces in wedge-shaped blades with self-cleaning function. Compression - Expansion mixing features make the material mixed uniformly. Material along the axis into a "plug flow" movement, in the axial zone, the material temperature, humidity, mixing a very small degree of gradient.
Technical Parameters
| Model | HPD-3 | HPD-9 | HPD-13 | HPD-18 | HPD-29 | HPD-41 | HPD-52 | HPD-68 | HPD-81 | HPD-95 | HPD-110 | HPD-125 | HPD-140 |
| Heat transfer area(m2) | 3 | 9 | 13 | 18 | 29 | 41 | 52 | 68 | 81 | 95 | 110 | 125 | 140 |
| Effective volume(m3) | 0.06 | 0.32 | 0.59 | 1.09 | 1.85 | 2.8 | 3.96 | 5.21 | 6.43 | 8.08 | 9.46 | 10.75 | 12.18 |
| Speed range(rpm) | 5-20 | 5-20 | 5-20 | 5-20 | 5-20 | 5-10 | 5-10 | 5-10 | 5-10 | 1-8 | 1-8 | 1-8 | 1-8 |
| Transmission power(kw) | 2.2 | 4 | 5.5 | 7.5 | 11 | 18.5 | 30 | 37 | 45 | 55 | 75 | 90 | 110 |
| Device width(m) | 306 | 584 | 762 | 940 | 1118 | 1296 | 1474 | 1655 | 1828 | 2032 | 2210 | 2480 | 2610 |
| Overall width(m) | 736 | 841 | 1066 | 1320 | 1474 | 1676 | 1854 | 2134 | 2186 | 2438 | 2668 | 2732 | 2935 |
| Equipment length(m) | 1956 | 2820 | 3048 | 3328 | 4114 | 4724 | 5258 | 5842 | 6020 | 6124 | 6850 | 7500 | 7860 |
| Total length(m) | 2972 | 4876 | 5486 | 5918 | 6808 | 7570 | 8306 | 9296 | 9678 | 9704 | 10300 | 11800 | 12900 |
| Center height(m) | 380 | 450 | 534 | 610 | 762 | 915 | 1066 | 1220 | 1430 | 1560 | 1650 | 1760 | 1856 |
| Total Equipment height(m) | 762 | 838 | 1092 | 1270 | 1524 | 1778 | 2032 | 2362 | 2464 | 2566 | 2668 | 2769 | 2838 |
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