The rotation speed of chemical industry double cone rotary dryer:
Although it is said that the faster the rotation speed of the cylinder of the double cone vacuum dryer, the higher the drying speed. But in the early stage of drying, if the rotation speed is fast, it is easy to cause the material to stick into agglomerates. Therefore, a lower rotation speed is used in the early stage of drying, and the rotation speed of the cylinder is increased when the surface of the material is dry. In the later stage of drying, as the water content of the material decreases, the rotation speed should also be appropriately reduced. At this time, increasing the rotation speed is not beneficial to the improvement of the drying speed. Therefore, during the drying process, the staff should adjust and control ratation speed according to the condition of the material at any time.
Applications:
This Drying Machine is suitable for concentration, mixing and drying of powder, granular and fibrous materials in such industries as chemical industry, medicine, food, etc., and materials that require low temperature drying(such as biochemical products), and is more suitable for drying of materials that are easy to oxidize, volatize, heat sensitive materials, irritant and poisonous materials, and materials in which breaking of crystals is not allowed. The rotary cone vacuum dryer is an important industrial dryer machine, lots of customers choose it.
Principle:
• After the heat source(such as hot water, low pressure steam or heat transfer oil) is connected to the closed jacket, the heat is transferred from the inner shell to the materials to be dried.
• Driven by the power, the tank makes slow rotation and the materials in the tank are continuously mixed so as to realize the purpose of drying.
• When the materials are under vacuum, the steam pressure reduces to make the moisture(solvent) on material surtaces reach the saturation status and evaporate, and discharged and recovered timely from the vacuum pump. The moisture(solvent) inside the materials is penetrated, evaporated and discharged towards the surfaces. The three processes are carried out continuously, so that the materials are dried within a very short time.
Features:
• During oil heating, automatic constant temperature control is adopted to dry biochemical products and mineral raw materials.
Temperatures vary within the range of 20-160℃.
• The heat efficiency is 2 times higher than that of common ovens.
• Indirect heating will cause no pollution to the materials, conforming to GMP requirements. The equipment is simple to repair and operate and easy to clean.
Drawings:
Technical Parameter:
| Model | SZG-100 | SZG-200 | SZG-350 | SZG-500 | SZG-750 | SZG-1000 | SZG-1500 | SZG-2000 | SZG-3000 | SZG-4000 | SZG-5000 |
| Total Volume (L) | 100 | 200 | 350 | 500 | 750 | 1000 | 1500 | 2000 | 3000 | 4000 | 5000 |
| Working Volume (L) | 50 | 100 | 175 | 250 | 375 | 500 | 750 | 1000 | 1500 | 2000 | 2500 |
| Heating Area (m²) | 1.16 | 1.5 | 2 | 2.63 | 3.5 | 4.61 | 5.58 | 7.5 | 10.2 | 12.1 | 14.1 |
| Rotation Speed (rpm) | 6-9 | 6-9 | 6-9 | 6-9 | 6-9 | 6-9 | 6-9 | 5 | 4 | 4 | 4 |
| Power (kw) | 0.75 | 1.1 | 1.5 | 1.5 | 2 | 3 | 3 | 4 | 5.5 | 7.5 | 7.5 |
| Rotation Height (mm) | 1810 | 1910 | 2090 | 2195 | 2500 | 2665 | 2915 | 3055 | 3530 | 3800 | 4180 |
| Machine Weight (kg) | 825 | 1050 | 1350 | 1650 | 1800 | 2070 | 2250 | 3000 | 4500 | 5350 | 6000 |
| Design Pressure in the tank (Mpa) | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 | -0.09-0.096 |
| Design Pressure in the jacket( Mpa) | 0.03 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
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