KJG Series Hot Air Style Hollow Paddle Dryer Drying Machine For
Dyeing Sludge
Description
KJG Series Hollow Blade Dryer( Hollow impeller Dryer)(Hollow Paddle
Dryer) is Applicable for drying or cooling of paste, particle,
powder and slurry state of material, perform the process of drying,
cooling, heating, sterilizing, reacting and combustion under low
temperature. The special stirring and heating transferring blade,
makes high heat transferring efficiency, and provide self-cleaning
function. The special chock shaped stirring and heat transferring
blade has high heating efficiency and self-cleaning function of the
heating transferring surface.
Working Principle
The paddle dryer is compact in structure and mainly consists of a sandwich casing, a central shaft with
staggered blades, inlet and outlet joints, drive mechanisms,
control boxes, and other components.
The cylinder is a jacket structure in which hot steam circulates
inside. During operation, water vapor is introduced into the jacket, hollow
shaft, and blade to provide the heat required for drying; a very
small amount of air is introduced into the dryer and used as a
carrier for the steam (or organic steam) that evaporates during
drying; the material enters the machine from the feed port, and is
conveyed by the hollow blade to the discharge port for discharging.
The material is heated and evaporated by the hollow blade and the
jacket during the conveying process to be dried. The heat transfer
surface of the wedge blade has a self-cleaning function. The
relative motion between the particles and the wedge surface
produces a washing effect that washes away the adhering material on
the surface of the blade, which allows the material to have a long
residence time and a high fill factor.
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.
