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Hollow Paddle Dryer from China Suppliers - Energy-Saving Factory for Drying, Cooling, and Sterilizing Materials
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. lt 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
Petrochemical industry:
polyolefin powder, panlite, high and low density polytene, linear 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.
Environment protection industry:
sludge,electroplating sludge,boiler ash,sugar residue pharmaceutical waste,ash.
Feed industry:
soy residue, bone forage, distiller's grains, food remnant, apple residue, orange peel, bean dregs, chicken bones forage, fish meat,feed additives, biological residue.
Food industry:
starch, chocolate, niblet, salt, metatropy starch, drugs.
Chemical industry:
soda ash, azophoska, kaolin, altamud, white carbon, carbon,ardealite,sodium fluoride oxide, nitrate of lime, agnesium carbonate, cymag,calmogastrin, barium sulfate,hydrofoil, dyestuff, molecular sieve, saponin.
Features
High Efficiency Design
Big heat transfer area,compart constraction and less installing area.
Low Energy Consumption
As the heat flow is indirect, there is no large volume of sweep gas flow through Ithe unit, which will cary heat away from dryer.Take slurry as example, heat requirement maybe as low as 1.2kg of steam/kg for evaporating 1kg water in hollow paddle dryer.
Self-Cleaning Mechanism
Paddle can be cleaned by itselt during operating,which will improve heat transter efficient.
Versatile Operations
Wide variety of process problems can be solved by using any kinds of heating source. It is specially suitable for drying heat sensitive materials and ligh temporature materials.The normal heat transfer Imedium can be steam, heat transfer oil, hot water, as well as cooling water etc...The dryer can be used for continuous or batch processing. It has been widely used in many industry areas already.
Stable Continuous Operation
Because of the special compression and inflation of agitation function of paddle dryer, the material grains touch the heat-transfer area thoroughly. Within the axis direction, the temperature, moisture, mixture and grades of the materials is very small so as to guarantee the stability of whole process.
Low Labor & Maintenance
Only need 1person per 1 day for 1 dryer which saves a lot of labor cost for customer. With our intelligent design and good manufacturing, the equipment is indefectible thus maintenance cost greatly saved.
Technical Parameters
| Model | Drying Area (m²) | Drying Capacity (H₂O.kg/h) | Motor Power (kw) | Effective Volume (m³) | Equipment Dimension LxWxH (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
What is the operating temperature range of the wedge-shaped hollow paddle dryer?
The heat medium temperature for the hollow paddle dryer can range from -40°C to 320°C, using steam, hot air, or heat conduction oil as the medium.
Why does this equipment feature low energy consumption?
It utilizes an indirect heating method, which means there is no large volume of sweep gas flow carrying heat away from the dryer. The energy loss is limited only to the heat emission of the heat-keeping layer.
How does the self-cleaning function of the paddles work?
The heat transfer action of the wedge-shape side provides automated cleaning actions, effectively removing waste material buildup from the wedge-shaped paddles during operation.
What materials and industries can benefit from this dryer?
It is widely used in the petrochemical industry (polyolefin powder, nylon, PVC, polyester), environmental protection (sludge, pharmaceutical waste), feed industry (soy residue, distiller's grains), food industry (starch, salt), and chemical industry (soda ash, kaolin).
How is the process stability maintained in continuous operation?
The special compression and inflation agitation function of the paddles ensures material grains thoroughly touch the heat-transfer area. Temperature, moisture, and mixture gradients along the axis direction are minimized to guarantee overall process stability.
What are the labor and maintenance requirements for this dryer?
It requires very low labor and maintenance. Only 1 person per day is needed to operate 1 dryer. The intelligent design and high-quality manufacturing render the equipment highly durable, significantly reducing maintenance costs.