China Hollow Paddle Dryer Suppliers | Energy-Saving Continuous Drying Equipment from Reliable Factory
Principle
There are wedge-shaped hollow paddles in hollow axis, and heat medium is from -40°C to 320°C, the heat medium is steam or hot air or heat conduction oil and so on. Indirectly heating way does not take the energy, so the energy is used for heating material. The energy loss is only heat emission of heat-keeping layer. The transferring heat of wedge-shape side takes cleaning actions. It can clean waste material in wedge-shaped size. The body of wedge-shaped hollow paddle dryer is W shape. There are 2-4 hollow mixing axes in the body. In order to avoid discharging material dust and to collect material solvent, there is a sealed cover on top of body. A baffle is on the outlet of discharging material, in order to keep the height of materials. The heat medium (such as steam or thermal oil) will flow into chamber jacket and hollow mixing axis through rotary join. Hollow mixing axis has different inner structures according to different types of heat medium, which will ensure of best heat transfer efficient.
Applications
Polyolefin powder, panlite, high and low density polytene, linear low density polytene, polyacetal, nylon 6, nylon 66, nylon 12, acerate fiber, polyphonyl sulfide, propeny resin, engineering plastic, polyvincyl chloride, polyving akohol, polystyrene, polypropylene, polyester, polyformaldhyde, styrene acrylonitrile copolymer, polytene and proplylene copolymer.
Sludge, electroplating sludge, boiler ash, sugar residue pharmaceutical waste, ash.
Soy residue, bone forage, distiller's grains, food remnant, apple residue, orange peel, bean dregs, chicken bones forage, fish meat, feed additives, biological residue.
Starch, chocolate, niblet, salt, metatropy starch, drugs.
Soda ash, azophoska, kaolin, altamud, white carbon, carbon, ardealite, sodium fluoride oxide, nitrate of lime, magnesium carbonate, cymag, calmogastrin, barium sulfate, hydrofoil, dyestuff, molecular sieve, saponin.
Features
Big heat transfer area, compact construction and less installing area required.
As the heat flow is indirect, there is no large volume of sweep gas flow through the unit, which would carry heat away from the dryer. Taking slurry as an example, heat requirement may be as low as 1.2kg of steam/kg for evaporating 1kg water in the hollow paddle dryer.
Paddles can clean themselves during operating, which significantly improves the heat transfer efficiency.
Wide variety of process problems can be solved by using various kinds of heating source. It is specially suitable for drying heat sensitive materials and high temperature materials. The normal heat transfer medium can be steam, heat transfer oil, hot water, as well as cooling water. The dryer can be used for continuous or batch processing.
Because of the special compression and inflation of agitation function of the paddle dryer, the material grains touch the heat-transfer area thoroughly. Within the axis direction, the differences in temperature, moisture, mixture, and grades of materials are very small, guaranteeing the stability of the whole process.
Only requires 1 person per day for 1 dryer, saving labor costs. With our intelligent design and quality manufacturing, the equipment is highly reliable, thus maintenance cost is greatly saved.
Technical Parameters
| Model | Drying Area (m²) | Drying Capacity (H₂O kg/h) | Motor Power (kw) | Effective Volume (m³) | Equipment Dimension L×W×H (mm) | Shaft Rotary Speed (rpm) |
|---|---|---|---|---|---|---|
| KJG-15 | 15 | 40~220 | 7.5 | 0.8 | 5500x1850x1800 | 5~15 |
| KJG-30 | 30 | 90~450 | 15 | 1.9 | 7500x2400x2200 | 5~15 |
| KJG-50 | 50 | 150~750 | 30 | 3.8 | 8000x2500x2200 | 3~12 |
| KJG-80 | 80 | 240~1200 | 55 | 6.5 | 9000x2700x2500 | 3~12 |
| KJG-100 | 100 | 300~1500 | 75 | 8.7 | 10200x3500x2800 | 2~10 |
| KJG-150 | 150 | 450~2250 | 90 | 13.2 | 1200x3700x2200 | 2~10 |
| KJG-200 | 200 | 600~3000 | 110 | 19.4 | 13000x3900x3800 | 1~6 |
| KJG-250 | 250 | 750~3750 | 110 | 26.2 | 13000x4100x3800 | 1~6 |
| KJG-300 | 300 | 900~4500 | 132 | 34.8 | 13500x4250x4000 | 1~4 |
| KJG-350 | 350 | 1050~5250 | 132 | 42.1 | 13200x4800x4200 | 1~4 |
Product Display
Frequently Asked Questions
Q:What is the operating temperature range of the hollow paddle dryer?
The hollow paddle dryer supports a wide operating temperature range for the heat medium, spanning from -40°C to 320°C.
Q:What heat mediums can be used with this drying system?
The system is highly versatile and can utilize steam, hot air, thermal conduction oil, hot water, or cooling water depending on the specific application requirements.
Q:How does the indirect heating method improve energy efficiency?
Because the heating is indirect, there is no need for large volumes of sweep gas to pass through the unit. This eliminates the gas-based heat carryaway loss, restricting energy loss mostly to minimal heat emission from the outer insulated layer.
Q:Does the dryer prevent material buildup on the heating surfaces?
Yes. The unique wedge-shaped design of the hollow paddles provides a self-cleaning action during rotation, which effectively clears away waste material and maintains high heat transfer efficiency.
Q:Is this hollow paddle dryer suitable for heat-sensitive materials?
Yes, it is specially designed for drying heat-sensitive and high-temperature materials. The stable continuous operation and precise temperature control prevent product degradation.
Q:What industries can benefit from using this equipment?
It is widely implemented in the petrochemical, environmental protection (sludge treatment), feed, food, and chemical industries for drying various powders, residues, and sensitive chemical compounds.