rotary vacuum dryer
The rotary vacuum dryer is a new type of drying equipment that combines mixing and drying. It combines a condenser, a vacuum pump and a dryer to form a vacuum drying device to achieve material drying.
rotary vacuum dryer Introduction
The rotary vacuum dryer is a new type of drying equipment that combines mixing and drying. It combines a condenser, a vacuum pump and a dryer to form a vacuum drying device to achieve material drying. This equipment has an advanced design, a simple internal structure, and is easy to clean. It can discharge all materials and is easy to operate. It can effectively reduce labor intensity and improve the working environment.
The rotary vacuum dryer is suitable for drying a variety of materials, including but not limited to high value-added, heat-sensitive agricultural and sideline products, health products, foods, medicinal materials, fruits and vegetables, chemical raw materials, etc. It is particularly suitable for applications that require low-temperature concentration, removal of crystal water, drying of enzyme preparations, and vacuum extraction of Chinese herbal medicines.
Functional characteristics of rotary vacuum dryer
Drying in a Vacuum Environment
Rotary vacuum dryer operate under vacuum conditions, significantly lowering the boiling point of the material solution and increasing the heat transfer driving force of the evaporator, thereby accelerating the drying rate. This drying method is particularly suitable for drying heat-sensitive materials that are prone to decomposition, polymerization, or deterioration at high temperatures.
High Durability and Wide Applicability
Rotary vacuum dryer are made from high-quality materials, featuring strong durability, good transparency, and light weight. They are widely applicable and can be used for drying biochemical reagents, pharmaceuticals, optical lenses, seeds, precision components, artifacts, and more.
Energy-Efficient and Environmentally Friendly
Rotary vacuum dryer use vacuum pumps to extract moisture during the drying process, avoiding the emission of harmful gases that can occur with high-temperature drying, thus meeting environmental protection standards. Additionally, their efficient drying process can help reduce energy consumption.
High Degree of Automation
Modern rotary vacuum dryer are typically equipped with intelligent control systems, enabling automated operation and reducing the need for manual intervention. This not only improves production efficiency but also lowers operational difficulty and labor costs.
Continuous Production
With a high degree of automation and stability, rotary vacuum dryer can achieve continuous production. This is especially significant for companies that require large-scale, batch production of materials.
Excellent Drying Results
Rotary vacuum dryer heat and dry materials through rotation, ensuring even heating throughout the drying process. This prevents localized overheating or uneven drying, guaranteeing the quality and effectiveness of the dried materials.
Recoverable Volatile Gases
Some rotary vacuum dryer (such as paddle vacuum dryer) also have the function of recovering volatile gases, which helps reduce environmental pollution and conserve resources.
The structure of the rotary vacuum dryer
Main Unit
The main unit is the core component of the rotary vacuum dryer, typically consisting of a rotatable heating drum or heating plate where the material is heated and rotated to produce vapor. In a double cone rotary vacuum dryer, the main unit consists of a double-cone-shaped drum and a base, with the drum interior capable of heating and vacuuming.
Heating System
The heating system provides the heat source for the main unit, causing the material to evaporate moisture. It typically includes heating elements and insulation layers. Heating elements such as thermal oil or steam transfer heat to the material through pipelines, while insulation layers reduce heat loss.
Vacuum System
The vacuum system reduces the pressure inside the working chamber to a certain vacuum level using an extraction system, creating a vacuum environment. Vacuum drying reduces the gas pressure during drying, lowering the boiling point of water, thereby increasing the evaporation rate of water at low temperatures and speeding up the drying process. The vacuum system usually includes a vacuum pump and vacuum pipes.
Cooling System
The cooling system cools the dried material to prevent overheating or other adverse changes. The cooling system may include components such as cooling fans and cooling coils.
Collection System
The collection system gathers the dried solid material, ensuring the continuity and efficiency of the drying process.
Transmission System
The transmission system drives the rotation of the main unit, ensuring the material is evenly heated and mixed during the drying process. It may include components such as motors, belt drives, and worm gear reducers.
Control System
The control system regulates and controls the entire drying process, including monitoring and adjusting parameters such as temperature, vacuum degree, and rotation speed. It typically includes PLC controllers, touch screens, and sensors.
Main advantages of rotary vacuum dryer
High Drying Efficiency
In a vacuum environment, the evaporation rate of moisture molecules significantly increases, greatly reducing drying time. Additionally, the vacuum environment isolates the process from external air interference, making the drying process more stable and avoiding fluctuations in drying results due to changes in ambient air humidity.
High-Quality Drying
Rotary vacuum dryers operate at lower temperatures, avoiding the impact of high temperatures on material quality. This is particularly important for heat-sensitive materials, as it preserves their original physical and chemical properties. Moreover, the vacuum environment removes solvents and volatile substances from the material, resulting in a purer final product.
Wide Applicability
Rotary vacuum dryer are suitable for a range of industries including chemicals, pharmaceuticals, food, and electronics. They can efficiently and steadily dry both solid and liquid materials. Their diverse models and specifications can meet different production scales and requirements.
Energy-Efficient and Environmentally Friendly
Rotary vacuum dryers are designed with energy efficiency and environmental protection in mind. They use advanced heat conduction technology and energy-saving control systems to reduce energy consumption and emissions. Additionally, the drying process does not produce harmful gases or wastewater, thus avoiding environmental pollution.
Safe and Reliable
Rotary vacuum dryer use advanced automation control systems that enable remote monitoring and automatic control, reducing operational difficulty and the need for manual intervention. Furthermore, the design and manufacturing of the equipment adhere strictly to relevant standards and regulations, ensuring its safety and reliability.
High Degree of Automation
Modern rotary vacuum dryer are typically equipped with intelligent control systems that enable automated operation, reducing the need for manual intervention. This not only enhances production efficiency but also lowers labor costs.
Even Heating
During rotation, the material is evenly heated and mixed, avoiding localized overheating or uneven drying. This helps to improve drying results and product quality.
pplication of rotary vacuum dryer
rotary vacuum dryer is widely used for drying small particles of loose materials in chemical industry, light industry, agriculture, food industry, feed industry and other industries. For example, in light industry, it can dry brewer’s grain, bean dregs, grain, sawdust, Marc, sand, slag and other drugs; In chemical industry, it can dry small particles, powdered materials and inorganic minerals and other materials; In starch industry, it can dry corn germ, corn bran, corn (maize) fibre, protein powder, etc: In feed industry, it can dry bran, corn pieces, bean dregs,etc; In fish industry, it can dry fodder of fish and shrimp; In oil industry, it can dry rapeseed (not as seeds). In breeding industry, it can dryer chicken manure, pig manure, cow dung and others.
Technical parameters of rotary vacuum dryer
| Model | HKB-1060 | HKB1290 | HKB-1590 | HKB-2090 | |
| Dimension(mm) | 9000×1500×2000 | 12000×1700×2200 | 12000×2000×2500 | 12000×2500×2800 | |
| Output(t/h) | 0.5-1 | 2-5 | 5-10 | 10-20 | |
| Power(kw) | 12 | 18.7 | 25 | 30 | |
| Weight(t) | 6 | 10 | 14 | 20 | |
| Pipe range(m) | 6 | 9 | 9 | 9 | |
| Diameter of pipe(m) | 1 | 1.2 | 1.5 | 2 | |
| Dust catcher | Diameter(m) | 1 | 1.2 | 1.5 | 1.5 |
| Height(m) | 1.8 | 2.2 | 2.5 | 2.5 | |
| Hot air furnace | Inside diameter (mm) | 1500 | 1800 | 2000 | |
| Gas output(Nm³/h) | 1200-1600 | 1500-2100 | 1750-2500 | ||
| Speed(r/min) | 3-5 | ||||
| Reduction of moisture(%) | 40-50 | ||||
| Dryness of finished materials(%) | 5-10 | ||||
| Heating medium | Hot clean air | ||||
| Hot air temp(℃) | <120 | ||||
After-sale Service
- – HKB provides advanced grain safety storage technology to assure your grain silo 100% quality stability.
- – grain silo Quality guarantee is one year after installation and commissioning or 18 months after leaving China Port. Maturity is the first.
- – 7 days x 24 hours service, within 24 hours reply/solve of any technical issues upon request.
- – Routinely telephone track to remove all might be problems grain silo or issues guarantying the whole system grain silo long-lasting safety and reliability.
- – HKB will consider all other needs like customs clearance, sea delivery, insurance, customs tax benefit plan, documentation, etc. So our respected Users feel so relaxed and easy to get the grain silo system well.
