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 KJG 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.
Stucture Introduction
The main structure is a W-shaped shell with a jacket, which is
equipped with a pair of hollow low-speed rotating hollow shafts. A
number of mixing blades are welded on the shaft. The jacket and the
hollow mixing blades are all equipped with heat carriers, and the
two heating surfaces heat the materials at the same time. The heat
carrier is usually fed from the middle of the dryer and discharged
from the other side through the surface of the material layer in
the agitated state.
Wedge-shaped hollow blades are densely arranged on the hollow
shaft, and the thermal medium flows through the blades through the
hollow shaft. The unit effective volume has a large heat transfer
area. The temperature of the thermal medium ranges from - 40 ° C to
320 ° C, which can be water vapor or liquid type: such as hot
water, heat transfer oil, etc. Indirect conduction heating does not
carry air to take away heat. Heat is used to heat materials. The
heat loss is only the heat dissipation to the environment through
the insulation layer of the reactor body. The heat transfer surface
of the wedge-shaped blade has the function of self-cleaning. The
relative movement of the material particles and the wedge-shaped
surface can wash off the attached materials on the wedge-shaped
surface, so that the clean heat transfer surface is kept in motion
all the time.
HEAT SOURCES(Temperature at 180ºC - 250ºC)
Heating by Steam
Steam enters the hollow shaft through a rotary joint and is evenly
distributed to all paddles. Condensate is removed with each
revolution.
Heating by Hot Oil(thermal fluid)
Hot oil(thermal fluid) enters and exits the hollow shaft through a
rotary joint. Pressure from the supply pump forces liquid through
the hollow paddles.
Product Application
• The materials from such as the medicine t food , chemical
industry, etc. can be dried.
• Suitable for pulpiness, paste-like mixture or power raw material.
• Temperature sensing material requiring the low temperature to be
dried.
• Raw materials that are easy to oxidize or explode and have strong
irritative or toxic.
• Demand to retrieve of the organic solvent.
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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