Jyg High Efficiency Small Dust Entrainment Less Material Loss
Paddle Sludge Dryer Horizontal Hollow Paddle Dryer
Product Description:
The paddle dryer is a machine used to heat treat powders,
granulates, filter cakes and pasty products in a full-continuous
process.
These processes vary from drying, cooling, crystallizing and
calcimining to melting, evaporating, solvents, sterilizing, etc
The paddle dryer has a heated through containing rotating heated
paddle shafts. The product is fed into the front of the machine.
The through is oriented at a small angle of inclination, placed
slightly in unloading position. The product moves to the outlet as
a result of gravity. The paddles do not have a transport function.
They are designed for maximum heat transfer. At the outlet side,
the product moves out of the machine via the overflow unit.
Working Principle
steam or thermal oil injected in the rotary shafts and the hollow
blades.Wet sludge is fed into the paddle dryer machine by the screw
feeder or sludge pump, and then is heated indirectly by the heat
medium.New surface area is released continuously while the shafts
rotate so that hot soda ash gets cooled in a high thermal
efficiency.
Dry product is discharged through the discharge valve, while the dusty air is cleaned in the
cyclone dust collector.
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
Blade dryer has been successfully applied in the fields of food,
chemical, petrochemical, dyes, industrial sludge and so on. For
example: calcium sulfate dihydrate (Ca2SO4 • 2H2O) is combusted
into calcium sulfate hemihydrate (Ca2SO4 • 1 / 22H2O); Sodium
bicarbonate (NaHCO3) is calcined into sodium carbonate (Na2HCO3).
It has been successfully used in the industries of fertilizer and
modified starch. Blade dryer can be used for sterilization of food
and flour. With large heating area in unit effective volume, the
materials will soon be heated to the sterilization temperature,
avoiding that long heating may change the quality of materials.
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.
