1000L Biconical Rotating Vacuum Dryer For Food Powder
1000L Food Powder Rotating Biconical Vacuum Dryer
DCRD Series Double cone Rotating Vacuum Dryer is a new generation drying device developed by our factory on the basis of combining the technology of similar equipment. It has two connecting ways, belt connection and chain connection. Therefore, the dryer is stable in operation. The special design guarantees two shafts realize good concentricity. The heat medium and vacuum system all adapt reliable rotating connector with the technology from USA. On this basis, we also developed SZG-A. It can carry out steeples speed change and constant temperature control. As a specialized factory in drying industry, we supply hundred sets to the customers every year. As for working medium, it may be thermal oil or steam or hot water. For drying the adhesive raw material, we have designed specially a stirring plate buffer for you.
Working Principle
In order to achieve rapid drying at low temperatures, including the drying of deep pores, in a way that does not damage the product, specialized drying technology – vacuum drying – must be used.
The complete product will move into the chamber. The pressure reduces for so long the saturated steam tension is reached. The water will discharge through the vacuum chamber from that point. The raw material is charged in batches & is subjected to indirect heating while at the same time undergoing rotary motion of the cone assembly. The double conical shape of the dryer ensures efficient circulation of hot liquid heating media. Drying takes place when heat flows from the outer cone through a jacket, and vacuum is applied in the inner cone. The drying operation is based on the principle that water or other volatile product moves from a zone of low pressure. This is accomplished by warming the product to be dried to raise the vapor pressure of the absorbed or free liquid by vacuum or by sweeping it with Air or Nitrogen current. Thus the essential conditions for effective drying are achieved by uniform heat transfer throughout the batch and rapid removal of the vapor. The vacuum is applied gradually with PLC control by throttling.
Most times the specific heat from the evaporating product is lower than from the base material. This material ensures that the temperature will drop slowly or even not. The pressure (vacuum) will achieve any part of the product so the moisture will evaporate. For a short period there results in a homogeneous temperature.
Product Application
DCRD double cone rotary vacuum dryer is applicable for drying and mixing powdery and granular materials in the pharmaceutical, food, chemical, dye and other industries. It is especially suitable for the following materials:
1. Thermosensitive materials that cannot withstand high temperature
2. Easily oxidized and dangerous materials
3. Materials whose solvent should be recovered and materials of poisonous gas
4. Materials required low residual volatile content
5. Materials with requirements on crystal shape
Product Features
1) Use automatic constant temperature control if the heat source is thermal oil. It can be used for drying biology products and mineral raw materials. The temperature of operation can be adjusted form 20 ~ 160°C.
2) The heat efficiency will be 2 times or higher comparing to the common dryer.
3) The heating method is indirect drying so the raw material will not be polluted. It is in conformity with the requirement of GMP. 4) The dryer is easy for cleaning and maintenance.
Technical Parameters
| Model | 100 | 350 | 500 | 750 | 1000 | 1500 | 2000 | 3500 | 4500 | 5000 |
| Volume inside of tank(L) | 100 | 350 | 500 | 750 | 1000 | 1500 | 2000 | 3500 | 4500 | 5000 |
| Max loading capacity(L) | 40 | 140 | 200 | 300 | 400 | 600 | 800 | 1400 | 1800 | 2000 |
| Max loading weight(kg) | 20 | 70 | 100 | 150 | 200 | 300 | 400 | 700 | 900 | 1000 |
| Revolution(rpm) | 3-13 | 6 | 5 | 4 | 4 | 4 | ||||
| Heating area(M2) | 1.1 | 2.3 | 2.8 | 3.9 | 5.1 | 6.5 | 8.2 | 12.2 | 16.5 | 18.2 |
| Motor power(kw) | 0.75 | 1.1 | 1.5 | 2.2 | 3 | 4 | 5.5 | 7.5 | 11 | 15 |
| Occupied area(mm) | 2160*800 | 2160*800 | 2350*800 | 2560*1000 | 2860*1300 | 3060*1300 | 3260*1400 | 3760*1800 | 3960*2000 | 4400*2500 |
| Rotating height(mm) | 1750 | 2100 | 2250 | 2490 | 2800 | 2940 | 2990 | 3490 | 4100 | 4200 |
| Design pressure of tank(Mpa) | -0.1~0.15 | |||||||||
| Desing pressure of jacket(Mpa) | <0.3 | |||||||||
| Weight(kg) | 800 | 1100 | 1200 | 1500 | 2800 | 3300 | 3600 | 6400 | 7500 | 8600 |
Schmatic of Installation
Product Show
electrical, steam, natural gas or other
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