Manufacturers, Supplier And Exporters Of Paddle Dryer For Sludge Drying
Paddle dryers are based on externally-heated paddles (or blades) rotating in the mass of sludge solids. There are normally either two or four sets of blades which rotate together to continuously cut into and stir the sludge solid lumps into smaller particles to continuously replenish the drying surface.
Paddle dryer is a dryer which has heat medium such as steam injected into its shaft and blade called disc or paddle, and heats and dries fed materials with the heat transmitted from the shafts and blades.
As the shaft with the blades attached rotates, the material is agitated, heated, and dried as being moved forward to outlet.
The blades called discs or paddles are made based on the manufacturer’s unique technology and some manufacturer owns their self-cleaning technology which scrape off adhered materials with the blades as the shaft rotates. It prevents the dryer to be clogged with the material, and it also increases heat and drying efficiency by updating the surface where heat is transmitted.
This dryer is also called paddle dryer or disc dryer regarding the name of the blades.
Working Principle
KJG Series New Type Hollow Paddle Dryer for Industrial Sludge is a kind of conduction heating and low rotating speed-stirring type drier. There is jacket on the body of drier, hollow oar blade on the hollow shaft, filling heating medium in them, wet material is stirred by oar blade and carries on heat exchange with shaft and oar blade. The structure of the machine is generally horizontal type with two or four shafts.
Technical parameters
| Model | KJG-2.7 | KJG-24 | KJG-52 | KJG-81 | KJG-110 |
| Heat transfer area | 2.7 | 24 | 52 | 81 | 110 |
| effective volume | 0.06 | 1.53 | 3.96 | 6.43 | 9.46 |
| revolution | 15-30 | 10-20 | 10-20 | 5-15 | 5-10 |
| power | 2.2 | 11 | 30 | 55 | 95 |
| width of dryer body | 306 | 1118 | 1474 | 1828 | 2210 |
| total width | 736 | 1474 | 1854 | 2286 | 2668 |
| length of dryer body | 1956 | 3454 | 5258 | 6020 | 6122 |
| total length | 2972 | 6147 | 8306 | 9678 | 9880 |
| distance between feeding and disharging | 1752 | 3150 | 4954 | 5562 | 5664 |
| height in center | 380 | | 1066 | 1220 | 1220 |
| total height | 762 | | 2032 | 2464 | 2668 |
| steam inlet | (2) 3/4 | (2) 1 | (2) 11/2 | (2) 11/2 | (2) 2 |
| water outlet | (2) 3/4 | (2) 1 | (2) 11/2 | (2) 11/2 | (2) 2 |
Applications
Petrochemical industry: polyolefin powder, polycarbonate resin, high and low-density polyethylene, linear low-density polyethylene, polyacetal granules, nylon 6, nylon 66, nylon 12, acetate, polyphenylene sulfide, propylene base resin, polypropylene, engineering plastics, polyvinyl chloride, polyvinyl alcohol, polystyrene, polyester, polyoxymethylene, styrene-acrylonitrile copolymerization, ethylene-propylene copolymerization.
Environmental protection industry: sludge, electroplating sewage sludge, boiler soot, sugar factory waste residue, pharmaceutical factory waste residue, MSG factory waste residue, coal ash.
Feed industry: soy sauce residue, bone-based feed, distiller's grains, food scraps, apple pomace, orange peel, soybean meal, chicken bone feed, fish meal, feed additives, bio-sludge.
Food industry: starch, cocoa beans, corn kernels, salt, modified starch, medicines.
Chemical industry: soda ash, NPK compound fertilizer, kaolin, bentonite, white carbon black, carbon black, phosphogypsum, calcium sulfate, calcium nitrate, magnesium carbonate, sodium cyanide, oxidized sodium fluoride, aluminum hydroxide, barium sulfate, calcium carbonate, molecular sieves, dyes, saponins.
Features
1) Low energy consumption: As a result of indirect heating, no much air take away the heating, the outer wall has insulation layer, the heat efficiency can be up to 90%. For slurry, evaporating 1kg of water just need 1.2kg vapor.
2) cheap investment: it has huge effective heat transfer surface area per unit, reduce treatment time, let the machine size become small, so It greatly reduces the construction area and building space.
3) wide range of materials handling: can use different types of media, not only can treat heat-sensitive materials, but also handle high-temperature materials. Common medias are: water vapor, thermal oil, hot water, cooling water and so on.
4) flexible operation method: Can be continuous operation or intermittent operation, can be applied in many fields.
5) Low environmental pollution: don't use air to dry material, dust material entrainment is rare. Small solvent evaporation, easy to treat. For contaminated materials or solvent recovery conditions, closed-loop can be used.
6) Cheap operating costs: Low-speed mixing and reasonable structure, Low wear, low maintenance costs. For normal operation, just only 1 person / day.
7) Stable operation: Due to the special compression-expansion stirring of the wedge blades, the material particle contact with the heat transfer surface enough, it ensure the processing is stable.
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SUS304 Hollow Paddle Dryer For Sludge Drying 5000 Kg/H Images
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