Tel:0519-88675141 中文版
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   Changzhou Donggan Machinery Co.,Ltd.
   Contact: Chen Renhua
   Phone: 13901507123  13861255658
   Address:Changzhou Zhenglutown
   Tel: 0519-88675141
   Fax: 0519-88677561

KJG hollow paddle dryer

Product description
  The product can paste, granules, powders, slurries indirect heating or cooling can be accomplished drying, cooling, heating, sterilization, reaction, low temperature combustion unit operation. Devices special wedge stirring blade has a higher heat transfer efficiency of heat transfer and heat transfer surfaces self-cleaning function.
Working principle
  Hollow shaft densely arranged hollow wedge-shaped blade, axial flow through the heat medium through the hollow blades. The effective heat transfer area per unit volume is large, heat medium temperature from -40 ℃ to 320 ℃, may be water vapor, liquid type may be: hot water, oil and the like. Indirect conduction heating, no air to carry away the heat, the heat was used to heat the material. Insulation heat loss to the environment only by body heat. Wedge-shaped blade having a heat transfer surface self-cleaning function. Particles and relative movement of the wedge-shaped surfaces to produce wash effect, can wash away the surface of the wedge-shaped attachment material, so that the operation has maintained a clean heat transfer surfaces. Blade dryer is Ω type of housing, housing the general arrangements for two to four hollow stirring shaft. Housing seal cover and cover to prevent dust escaping material fully play its role.
  A heat transfer medium through the rotary joint, flowing in the casing jacket and hollow stirring shaft, stirring hollow shaft according to the type of heating medium having a different internal structure, to ensure optimum heat transfer.

◎ blade dryer is low energy consumption: Due to the indirect heating, not a lot of air to carry away the heat, the outer wall of the dryer and set the insulation layer of slurry material, evaporated water only 1.2kg 1kg water vapor.
◎ blade dryer is low cost system: has a huge heat transfer surface per unit effective volume, shortening the processing time, the device size becomes smaller. It greatly reduces the floor space and building space.
◎ wide range of materials handling: Use a different medium heat, can deal with heat-sensitive materials, but also need to deal with the high temperature treatment of materials. Common media are: steam, thermal oil, hot water and cooling water.
Continuous operation can also be intermittent operation can be applied in many fields.
◎ environmental pollution: do not use carry air, dust material entrained very little. Material solvent evaporation is very small, easy to handle. Of contaminated material or solvent to be recovered condition, can be used
Closed cycle.
◎ operating costs low: the structure. A small amount of wear, maintenance costs low.
◎ stable operation: Due to the wedge-shaped blade special compression - expansion stirring, so that the material particles are sufficiently in contact with the heat transfer surface in the axial zone, material temperature, humidity, mixing gradient is very small, thus ensuring the process stability.
Adapt materials
  Paddle dryer has been successfully used in the food, chemical, petrochemical, dyes, industrial sludge and other fields. Heat transfer equipment, cooling, stirring so that the characteristics of the operation unit can perform the following: combustion (low-temperature), cooled, dried (solvent recovery) heating (melting), the reaction and sterilization. Stirring blades is also the heat transfer surface, so that the heat transfer area per unit effective volume is increased, the processing time is shortened. Wedge-shaped blade heat transfer surface and having a self-cleaning function. Compression - expansion of the material mixture evenly mixing function. Material axially into a "plug flow" movement in the axial zone, material temperature, humidity, mixing gradient is very small. Used to do medium heat blade dryer low temperature combustion can be accomplished work. Such as: calcium sulfate dihydrate (Ca2SO4 · 2H2O) combustion into calcium sulfate hemihydrate (Ca2SO4 · 1 / 22H2O). Sodium bicarbonate (NaHCO3) into calcined soda (Na2HCO3) and the like. Pass into a cooling medium, such as water, salt water, etc. can be used to cool the cooling. Such as: used in the soda ash industry paddle cooler base machine, replace the old air-cooled cooler base machine, energy saving and exhaust gas treatment equipment, reducing operating costs. Drying, the main function of the device, do not use hot air, the solvent recycling, energy consumption, environmental control in the ideal state tractable. To be recovered solvents, flammable material is particularly heat-sensitive oxide adaptation. It has been widely used in chemical, petrochemical and dye industries. Axial area, temperature, humidity, degree of mixing uniformity, so that the device can be used to heat or melt, some of the solid material or the reaction. It has been successfully used in the fertilizer industry and modified starch. Blade dryer can be used for sterilization of food and flour. Unit effective volume of large heating area, will soon be heated to the sterilization temperature, avoiding prolonged heating to change the quality of materials.
Technical Specifications

Heat transfer area(m2) 3 9 13 18 29 41 52 68 81 95 110
Effective volume(m3) 0.06 0.32 0.59 1.09 1.85 2.8 3.96 5.21 6.43 8.07 9.46
Speed range(rmp) 15-30 10-25 10-25 10-20 10-20 10-20 10-20 10-20 5-15 5-15 5-10
Power(kw) 2.2 4 5.5 7.5 11 15 30 45 55 75 95
Body width A(mm) 306 584 762 940 1118 1296 1476 1652 1828 2032 2210
Overall width B(mm) 736 841 1066 1320 1474 1676 1854 2134 1186 2438 2668
Body width C(mm) 1956 2820 3048 3328 4114 4724 5258 5842 6020 6124 6122
Overall Length D(mm) 2972 4876 5486 5918 6808 7570 8306 9296 9678 9704 9880
Access to materials E(mm) 1752 2540 2768 3048 3810 4420 4954 5384 5562 5664 5664
Center height F(mm) 380 380 534 610 762 915 1066 1220 1220 1220 1220
Total height H(mm) 762 838 1092 1270 1524 1778 2032 2362 2464 2566 2668
Intake port N(Inch) 3/4 3/4 1 1 1 1 11/2 11/2 11/2 11/2 2
Outlet O(Inch) 3/4 3/4 1 1 1 1 11/2 11/2 11/2 11/2 2
Installation Schematic

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