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Paddle dryer
Stordworks Hollow Blade Paddle dryer is an indirect drying equipment with hollow paddles/blades installed usually in a horizontal hollow axle rotating in a vessel. the wet feed is dried when the rotating paddles stir the materials and resulting in a close contact with the heated paddles and vessel shells. The dryer has a high heating transfer surface and high heat efficiency due to no heat loss in exhaust gas(only heat loss is radiation via heavily insulated dryer vessel, which is very trivial). The paddles are self-cleaning due to relative motion between the wet feed and the wedge-shaped paddles. Paddle dryer can work in batches or continuously, in vacuum, protective atmosphere or pressure conditions according to drying requirements and nature of wet feeds. The heating medium can be thermal oil or hot water with pressure from 0.1 MPa to 0.8 MPa, Steam with pressure up to 1.5 MPa. Working temperature: 40 C to 300 C. Evaporation capacity: 8Kg to 60Kg/m2.h.
☆ The process is save,stable, reliable, greatly reduce pollutant emissions;
☆ Low engineering investment and operation cost, small footprint, low energy consumption; ☆ Simple and convenient management mode, flexible operation mode. The operation mode and parameters can be adjusted according to the characteristics and quantity of sludge in different seasons;
☆ Promote the automatic control of sludge treatment and disposal processt;
☆ With steam as the heat source, and waste incineration power generation equipment run together. Using the concept of circular economy, it can greatly save resources and reduce energy consumption.
Main features of paddle dryer
The process is save,stable, reliable, greatly reduce pollutant emissions;
Low engineering investment and operation cost, small footprint, low energy consumption;
Simple and convenient management mode, flexible operation mode. The operation mode and parameters can be adjusted according to the characteristics and quantity of sludge in different seasons;
Promote the automatic control of sludge treatment and disposal processt;
With steam as the heat source, and waste incineration power generation equipment run together. Using the concept of circular economy, it can greatly save resources and reduce energy consumption.
| Model | Area (m2) |
Capacity (t/d) |
Total power (kw) |
Conduction oil & steam (.C) |
Dimension(mm) | Total weight (t) |
||
| (L) | (W) | (H) | ||||||
| JYD-5 | 20 | 5 | 7 | 0~200 | 4800 | 900 | 900 | 2.5 |
| JYD-10 | 40 | 10 | 11 | 0~200 | 6000 | 1300 | 1300 | 5.2 |
| JYD-15 | 60 | 15 | 23 | 0~200 | 6800 | 1500 | 1500 | 9 |
| JYD-20 | 80 | 20 | 30 | 0~200 | 6900 | 1600 | 1600 | 11 |
| JYD-25 | 100 | 25 | 44 | 0~200 | 7500 | 1700 | 1700 | 13 |
| JYD-40 | 160 | 40 | 70 | 0~200 | 8900 | 2200 | 2400 | 18 |
| JYD-50 | 200 | 50 | 90 | 0~200 | 9200 | 2300 | 2500 | 22 |
| JYD-60 | 250 | 60 | 150 | 0~200 | 11000 | 2800 | 2800 | 32 |
Stordworks Hollow Blade Paddle dryer is an indirect heat transfer device.
Thermal medium is injected in the rotary shafts and the dryer jacket. Wet material is fed into the paddle dryer by the feeding device, and then is heated by the heat conducted through the rotating shafts as well as the jacket.
New surface area is released continuously while the shafts rotate so that wet material gets dried in a high thermal efficiency. Dry material is discharged through the discharge valve, while the evaporated moisture which entrains a certain amount of dust is cleaned in the cyclone dust collector or fabric dust collector.
The heat transfer surfaces of hollow paddle dryer includes paddle, stirring shaft, and wall surface. And the heat transfer area of paddle is the great majority, so the structure of the equipment is compact and heat transfer area of unit volume is high. Stirring and mixing make the material turn over temestuously so that the material can get high heat transfer coefficient, the occupied area and space is small and the plant capital cost is saved. Because the structure of paddle is special, during the drying period, material will be extruded and loosed, drying is strengthened. Loading ratio of drying chamber is high, it can be 80%-90%, drying time can be regulated from a few minutes to a few hours by regulating the feeding speed, the rotary speed of stirring shaft and the loading ratio. And from feeding port to discharging port the movement of material is basically piston motion. It residence time distribution is narrow, so the moisture of product is uniform. The paddle that on the stirring shaft has a certain axial direction angle, so it can dry material continuously.
Paddle dryer has following main features:
1.Compact structure, large efficient heat transfer area, and small occupied area.
2.Stirring is uniform, heat efficiency is high, and drying efficiency is good.
3.Paddle shafts can mesh each other, and have self-clean function, it can avoid material stick on the wall.
4.Energy consumption is low, and operating cost is low.
5.Little dust carried out, little material loss.
6.Heat indirectly, material can not be polluted.
7.Rotary speed of paddle shaft is low, it will not destroy the shape and property of product.
8.Operating flexibility is large, running is stable and reliable
Hollow paddle dryer is successfully used in foodstuff, chemical, petrochemical, dyestuff, industry sludge fields, etc. The characters of heat transfer, cooling, and stirring make the machine can achieve the following operation: Calcination(low temperature), cooling, drying(solvent recovery), heating(melting), reaction and sterilization. Stirring paddle is heat transfer surface as well, it makes the unit efficient heat transfer area larger, and handling time is reduced. Heat transfer surface of wedge type has self-cleaning function. Compress--expand stirring function makes the material mixed uniformly. Material makes piston flow movement along the axial direction, in the axial direction interval, the temperature, humidity and mixedness gradient is very low. Using thermal oil as heating medium, paddle dry can finish low temperature calcination work. For example, calcium sulphate dehydrate (CaSO4.2H2O) is calcined to calcium sulfate hemihydrate (CaSO4.1/2H2O), sodium bicarbonate (NaHCO3 is calcined to Sodium Carbonate (Na2CO3), etc.
Input cooling medium such as water and cooling brine, the machine can be used for cooling. For example, the paddle alkali cooler use in Sodium Carbonate industry has replaced old air alkali cooler. It can save energy and end gas process equipment, so the operating cost is saved. It also can be used for cooling titanium dioxide, ferro-nickel powder and kinds of powder and granules materials. In the equipment, material can be cooled from 10000C to less than 400C.
Main functions of the equipment: It doesn't use hot air, it can make the solvent recovery, energy consumption and environment control in the tractable ideal state. It is suitable for the materials that need to recycle solvent, inflammable, easy to oxidize, and thermal sensitive materials. It is widely used in fine chemical, petrochemical and dyestuff industries.
In the axial direction interval, the uniformity of temperature, humidity and mixedness makes the equipment can used for heating or melting, or reaction of some solid materials. It sis successfully used in compound fertilizer and modified starch industries. Paddle dryer can be used for sterilizing for food and flour. The large heating area in the unit efficient volume can heat the material to sterilize temperature, it can avoid the quality changing because of long time heating.
We can deliver the goods to you by sea,by air,by express or by land transportation.We will try my best to make you get the goods faster and safe.
Before selling service:
1. Offering professional one-on-one service and replying your E-mail within three hours.
2. Supply operation video & instruction documents to you.
3. Supply competitive price.
4. Test and adjust machine, and let you can use it directly when you get it.
5. 100% QC inspection Before Shipment.
6. 24 hours hot line service.
After sales service:
1. Provides technical support and fittings for life. We will solve your problems on time. If you are caught in some problems .
2. Supply all kinds of frequently used parts all the year.
3. Any problems occur while using, professional technical support and maintaining will be offered.
4. When using our products, welcome to contact us at any time.
JIANGSU STORD WORKS LTD. located in Fangqiao National Machinery Industrial Park, which at the Taihu Lake, Yixing City, Jiangsu, China. Our company is a professional equipment manufacturing base specializing in comprehensive utilization and recovery of solid and liquid waste. The main products of our company are sludge drying/incineration and the accessory equipment, liquid waste evaporation & concentration equipment, complete equipment for animal rendering plants, pressure vessels and other non-standard equipment. StordWorks adheres to the international first-class quality standards and strictly controls the product details. Our products are sold well in European Union, USA, Australia, etc. and have been unanimously praised by customers at home and abroad and highly recognized by the market.
StordWorks has the specialized workshop for drying machine production and advanced tooling equipment. We also have various international pressure vessels certification and abundant experiences in equipment manufacturing, such as National standard pressure vessel certification, American ASME certification, Norske Veritas DNV certification, and EU PED certification.
Jiangsu StordWorks obedience to the business philosophy of "Focusing on Professionalism & Quality First", and the service concept of "Customer-orientation and Exceeding Customer Satisfaction". By means of our excellent quality and perfect service, Jiangsu Stord Works Ltd. sincerely looks forward to cooperating with you!
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