Place of Origin:
CHINA
Brand Name:
XINYU
Model Number:
LPG500
Automatic 304SS/316SS Milk Powder Centrifugal
Main Introduction
High speed centrifugal spray dryer is used to make powder granule from liquid directly. It is suitable for powder production from the materials such as solution, emulsion, liquid and paste with fast drying speed, high efficiency, simplified process, and economized man resources. especially for heat-sensitive material, this technology could keep the color, spice and flavor. The final product owns good uniformity, mobility and dissolving capacity, also high purity. This machine is favorable for improving productivity and benefits well from technology, which has great perspective in chemical, light industry, construction material, foodstuff, pharmaceutical, biochemical and other industries.
Ⅰ,Equipment design condition:
1, Feed liquid condition
Name of material: liquid
Solid content: 25%
Final moisture: 5%
Inlet air temperature: 200--210℃ (Inlet air temperature is 210℃)
Outlet air temperature: ~90℃
Water evaporation: 500 kg/h
Viscosity: no
Proportion of liquid: ~1.1 g/cm3
Heat source: Gas-fired hot blast stove
Liquid temperature: 20℃
2, Dry product condition:
Dry grain size: ~120 mesh
Dry matter accumulation proportion: ~0.8 g/cm3
Hygroscopicity: no
Outlet material temperature: 40~50℃
3, Process conditions
Atomization mode: Centrifugal
Contact mode between droplets and hot air: Parallel flow
Heat sources and heating methods: Gas-fired hot blast stove
Inlet air temperature: 210℃
Outlet air temperature: ~90℃
Powder collection mode: Two-stage cyclone precipitatorSystem material requirements: The contact part and outside of mainframe are SS304,Remaining are Q235.
4, Design meteorological conditions
Atmospheric pressure: standard atmosphere pressure
Ambient temperature: 20℃
Relative humidity: 60%
Ambient air moisture content:0.012 kg/kg
5, Public works (Total)
5.1 Electric source
Power supply: 380V,3phase,50HZ
Power: driving force 267 kw
6. Main parameters of equipment:
(1) Tower inner diameter: Φ5800 mm
(2) Tower outer diameter: Φ5960 mm
(3) Air volume: 15000 kg/h
(4) Inlet air temperature: 210℃
Outlet air temperature: ~90℃
(5) Dry product output: ~200 kg/h
Water evaporation: 500 kg/h
(6) Water content of dry powder: 4%
(7) Gas-fired hot blast stove: 800000 kcal/h
(8) Cyclone dust extractor 1: 2-- XXF/Φ1100
Cyclone dust extractor 2: 2-- XXF/Φ1000
(9) Blowing machine: Model:4-72-5A Power:15KW Speed:2900 rpm
(10) Induced draft fan: Model:9-26-10D Power:55KW Speed:1450 rpm
(11) Screw pump: Model:GF40-1 Power:4KW pressure:0.6 Mpa
Rate of flow:8 m3/h Speed:700 rpm
(12) Atomizer: Model:XH-500 Power:11KW
Speed:12000~15000 rpm
Ⅲ,Systems definition
Initial selection: LPG-500 spray dryer unit
Heating system: Gas-fired hot blast stove
Powder capture system: Two-stage cyclone separator
Dielectric circulation system: Draft fan open cycle
Air filtration system: Initial air filter
Feeder system: Screw pump adjustable automatic feeding
Control system: Control cabinet centralized control
Ⅳ, Schematic diagram of technological process (with drawings)
Ⅴ, Equipment technical parameter table
Water evaporation(Purified water evaporation) | 500 Kg/h(max) | Tower diameter / tower height | Φ5.8m/13.6 m |
Operating temperature | Inlet air 210℃/Outlet air 90℃ | Atomizer LPG-500 |
Speed:12000 r.p.m Disc diameter:Φ180mm |
installed power | transmission~69KW | ||
System heat | 80×104 Kcal/h | Compressed air consumption | 0.6 m3/min |
Drying system form | Open circulation system | Feeding mode | Screw pump stable feeding |
Hot air contact mode | Parallel flow mode | Heat source mode | Gas-fired hot blast stove |
Powder collection mode | Two-stage cyclone precipitator | Atomization mode | Centrifugal atomization |
Control mode | Control cabinet centralized control, can control inlet air temperature, digital temperature, pressure, pressure difference |
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