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Large-scale Fluidized Bed Dryer with In-bed Heat Exchanger


  
Working Principle:
Preheated gas (air) is passed into the product layer under controlled velocity after being uniformed by the distributor so as to create a fluidized state. Fluidized bed dryer with in-bed heat exchanger is superior in an advanced drying technique combined with normal fluidized bed drying and indirect conduction type drying. The in-bed heat exchanger enhances heat transfer of solid particles and thermal medium and improves drying efficiency and drying capacity.

Characteristics:
1. Efficiency in energy saving is high. Most heat is provided by the in-bed heat exchanger with the efficiency about 90%, hot air is used mainly to ensure normal fluidization, the quantity of hot air is much less than that needed by conventional fluidized bed; power consumption and heat losses of the exhaust air are accordingly reduced, resulting in higher drying efficiency.
2. As gas flow velocity in the system is lower than that in the conventional fluidized bed, so the material being entrained from the fluidized bed by the air is reduced significantly, the load of the dedusting system is reduced and the environmental protection is improved correspondingly.
3. Use of a special air distributor to prevent material leaking.
4. Easy to install, simple to operate, inexpensive to maintain.

Material to be dried:
ethane diacid, calcined soda, table salt, sodium carbonate, sodium sulphate, potassium chloride, nitrate of potash, ammonium chloride, ABS plastic, styrene, ammonium nitrate, ammonium sulfate, calcium chloride, calcium formyl, calcium hypochlorite, calcium sulphate, coal, crystal sugar, diamine phosphate, calcium phosphate, grain porcelain clay, grain fertilizer, hydroquinone, iron sulfate, emulsoid resin, pentaerythritol, potassium carbonate, potassium chlorate, potassium phosphate, potassium tartrate, steel scrap, PVC, sludge, baking soda, sodium bromide, sodium carbonate, sodium chlorate, sodium formate, amylum, terephthalic acid and etc.

Technical Parameter:
Specification Water Evaporation Capability (kg/h) Installed Power (kw) Steam Pressure (Mpa) Steam Consumption (kg/h) Input Air
(m3/h)
Inlet Air Temperature (℃) Size
(Length×Width
×Height)
GWLN2.0 200-500 67 0.2-1.2 400-1200 7200 100-350 3000×1200×4500
GWLN2.5 300-600 77 0.2-1.2 600-1200 9000 100-350 3400×1300×4500
GWLN3.0 400-800 96 0.2-1.2 800-1400 10800 100-350 3800*1400*4500
GWLN3.6 500-900 112 0.2-1.2 1000-2000 12960 100-350 4200*1500*4500
GWLN4.0 500-900 130 0.2-1.2 1200-2000 15800 100-350 4800×1500×4500
GWLN5.0 700-1100 145 0.2-1.2 1400-2200 18700 100-350 5200×1650×5000
GWLN6.0 800-1400 160 0.2-1.2 1600-2800 21600 100-350 6000×1700×5000
GWLN7.0 900-1600 180 0.2-1.2 1800-3200 25200 100-350 6800×1750×5000
GWLN8.0 1000-1400 200 0.2-1.2 2000-2800 28800 100-350 7500×1800×5000
GWLN10.0 1200-1800 260 0.2-1.2 2400-3600 36000 100-350 10000×1850×6000
GWLN15.0 1600-2200 350 0.2-1.2 3200-4400 54000 100-350 14000×1900×6500
GWLN20.0 2000-3000 400 0.2-1.2 4000-6000 72000 100-350 18000×2000×7000
GWLN25.0 2800-4000 550 0.2-1.2 5500-6500 90000 100-350 22000×2000×7000





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