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After filtering and heating, the air enters into the hot air distributor at the top of the centrifugal spray dryer, and the hot air will spirally and evenly goes into the drying chamber. The material liquid via high-speed centrifugal atomizer rotates into extremely thin vaporific liquid globule and parallelly flows with the hot air, and then the liquid will be dried into powdery products in a very short time (5-10 seconds). The waste gas after filtering will be expelled through the fan. For the wet organic solvent materials, the spray drying machine can be designed with closed cycle process. It can utilize cyclic nitrogen to dry the materials.
1. Simple Introduction:
Spray drying is the widest used technology in the liquid shaping technology and in the drying industry. Centrifugal Atomizing (Spray) Drying Equipment is most suitable for producing powder, particles or solid block products from materials of solution, emulsion, soliquoid and pumpable paste states. Therefore, spray drying is useful to create the desired particle size, residual water contents, the stocking density, and the particle shape needed to meet precise standards
2. Working principle:
The air is through the filter and heater, the air distributor which enters the dedicator top, the hot air takes the form of spiral and enters the dedicator evenly. The material liquid , from the material liquid trough from the at odds with the community or the leadership atomizer for the dedicator top of pump sending through the filter, make the material liquid gush out into an extremely small calorific drop, material liquid and hot air flow and keep in touch, moisture evaporate rapidly, within extremely short time dry to become finished product, finished product discharge by dry tower bottom and whirlwind separator, the waste gas is discharged by the air blower.
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Item Model
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LPG-5
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LPG-25
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LPG-50
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LPG-150
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LPG-200~2000
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Inlet temp. ºC
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140~350
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140~350
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140~350
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140~350
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140~350
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Outlet temp. ºC
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80~90
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80~90
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80~90
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80~90
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80~90
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Max. water evaporation kg/h
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5
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25
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50
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150
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200~2000
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Transmission form of
centrifugal atomizer
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Compressed air transmission
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Mechanical transmission
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Mechanical transmission
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Mechanical transmission
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Mechanical transmission
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Maximum speed (r.p.m)
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25000
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18000
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18000
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15000
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8000-15000
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Diameter of atomizer (mm)
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50
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120
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120
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150
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180-240
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Heat source
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Electricity
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Electricity, steam, natural gas, LPG
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Max. power of electric heater (kw)
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9
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36
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72
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99
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Overall dimensions (LWH) (m)
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1.8*0.93*2.2
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3*2.7*4.26
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3.5*3.5*4.8
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5.5*4*7
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Dry powder recovery rate (%)
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≥95%
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Note: The amount of water evaporation is related to the characteristics of the material and the temperature of the hot inlet and outlet.
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