High Efficiency Centrifugal Spray Dryer Of Milk Powder 320-380 Kg / Hour Feeder Capacity

LPG200 Centrifigural Spray Dryer

Equipment design conditions and requirements

The products:The baby milk

Content water of beginning:65%(Solid content:35%)

Content water of final:≤4%

Inlet air temperature:180-220℃

Exhaust temperature:80-100℃

Water evaporation:About 300kg/hour

The negative pressure of the tower inside:-150Pa

Rotating speed frequency:40-50hz;

Feeder Capacity: 320-380kg/hour

Dry mesh: 60-150

The atmospheric pressure:760mmH2O

Ambient temperature: 20 ℃
Absolute humidity: 80%
Power supply: 380 v, 3 phase, 50 hz

The characteristics of dry milk from a liquid to easily moisture absorption, heat sensitive, food-grade requirements higher;And because it is food, more attention should be paid to the product color, fragrance, taste of the high demand.So they asked us to time must be shorter when dry, water should be low, into powder after rapid cooling and dehumidification.Our company technical personnel studied the special milk drying characteristics, developed the milk spray drying equipment, it has the following features;

1. The quality of the product can stability control
Atomizer in this unit adopts frequency control of motor speed, can arbitrarily change the atomization effect, in order to achieve adequate control product particle size;Design activity of the hot air distributor, can adjust the hot wind;The tower of induced draft fan air volume adjustment, to adjust the negative pressure, residence time control material.Applicable to high temperature instant drying, evaporation is also applicable to low temperatures over long periods of time;USES the advanced fuzzy control technology, create the wind temperature and feed rate of the fuzzy mathematical model of the programmed in and let outlet air temperature to automatically adjust the feed rate of the automatic tracking, ensure the stability of product quality.

2,To prevent coking and moisture absorption wall sticking powder
According to the characteristics of this kind of material, in the design of tower diameter tower high made a corresponding adjustment, not only ensure powder dry before reach the tower wall, guaranteeing powder dry hot air retention time and complete;On cone increase air cooling tower jacketed cooling device, adopting natural wind forced cooling tower inner cone, cone within the temperature around 50 degrees, when the drying temperature rise within the powder into the cone, after will not zoom change paste by local high temperature;In the cone with a total of 3 sets of pneumatic percussion hammer intermittent oscillation in cone, the inner cone of the dry powder drop quickly to the main tower exports;Desiccant cooling feeding device is out of the wind forced the host adopt refrigeration dehumidifier and primary cyclone powder cooled and sent to clean pollination blanking, there are two, one rapid cooling to prevent moisture absorption, and can meet the demands of the FDA's operations.

3. No product material, plugging material
All contact with the material in the host place by plane or circular arc transition and contact surfaces are grinding, polishing operations processing (fine buffing to train more than 10), avoid sand holes, corner, eliminate wall material, in line with the GMP requirements.
4. Dust recovery rate is high
Spray dry dust removal system of the unit is a two-stage cyclone separator, and a water film dust collector.Primary cyclone with high gas separator, secondary cyclone with dispersive cyclone separator and its yield can reach 97-98%, level 3 USES the exhaust water film absorb dust, efficiency is above 99.5%, and the absorption liquid can be recycled after discharge exhaust gas can be up to environmental standards.

5. No pollution, no leakage, easy disassembly, easy to clean
Air to the processing system adopts central Asia in the early high efficiency air filter, clean air to hundreds of level;The entire unit and material contact material is made of stainless steel, ensure material without pollution;Transmission parts contacting with materials are good, the labyrinth can waterproof and oil;The use of sealing butterfly valve discharge operation, prevent air leakage;Host, cyclone left a clean mouth, induced air discharging section are connected by living, can tear open outfit, cleaning and disinfection sterilization, etc., at any time to fulfill the requirements of GMP.

6. To realize automation control
The unit process control system with PLC circuit;Touch screen animation display process, operable;Variable operating parameters to realize the fuzzy regulation technology of automatic tracking;Using frequency converter safely the adjusting atomizer;Inlet temperature accuracy can reach plus or minus 2 ℃, minimizing energy consumption;Into and out of digital display temperature, tower, tower pressure, can be set in a precise and so on.

The many advantages of spray drying unit configuration, is based on a lot of similar products after use, experience, and many advanced foreign technology and research development, now has been in the domestic several successful use of food additives, pharmaceutical and chemical plant, compared with the conventional unit, obtained obvious good effect, for example: jiangxi flavour is food, guangdong famous flowers spices, Shanghai shenbao perfume ludustry and, surplus life in Hong Kong, etc., the efficiency is very high, received industry customer consistent high praise and correct.We will also continue to spray drying technology further and deeper research and development, a better technical support for the enterprises at home and abroad

Design of equipment
Early selection: LPG200 milk processing high-speed centrifugal spray drying units,
Heating system: the steam heating
Dust removal system: secondary cyclone separation combined dedusting water film dust catcher
Circulation system: send induced draft fan open cycle
Air filtration system: early, middle, and high efficiency air filter
Feeder system: na mo stepless adjustable feed pump
Blanking system: star unloading valve
Control system: frequency converter adjusted atomizer speed, to ensure the best results display instrument display temperature, pressure, differential pressure, automatic tracking control variable parameters fuzzy technology and so on

Parameter: