Working Principle
Negative pressure generation: By working with a vacuum pump or vacuum generator, the air in the conveying pipeline and hopper is extracted to create a local vacuum environment, causing the air pressure at the suction port to be higher than that inside the pipeline, thereby creating a pressure difference.
Material suction and transportation: Under the action of pressure difference, granular materials are sucked into the pipeline and transported upward along the pipeline under the drive of negative pressure airflow, forming gas-solid two-phase flow.
Air material separation: After the material enters the hopper, the air is discharged through a high-efficiency filter, and the material is deposited in the hopper due to gravity. Some models are also equipped with cyclone separators to further separate small particles and ensure the cleanliness of the exhaust.
Material release: When the material reaches the hopper or receiving device, the pneumatic valve or butterfly valve will open, releasing the material and allowing it to fall into the hopper or other equipment, completing the conveying process. The opening and closing of the valve is usually timed by the control system.
Filtering and Cleaning: Filtering systems are usually equipped with high-precision filters to prevent dust from entering the atmosphere, and are also equipped with pulse cleaning devices to regularly clean filter bags with compressed air to restore filtration efficiency.
Structural composition
Vacuum pump or vacuum generator: It is a key component that generates negative pressure, such as using oil-free or waterless vacuum pumps, or multi-stage vacuum generators driven by compressed air to provide stable vacuum suction.
Vacuum hopper: used for temporary storage of transported materials, serving as a buffer and transition.
Filters: There are multiple options including polyester film filters, PE filters, 316L stainless steel filters, titanium metal filters, etc., which can effectively prevent powder and particles from entering the vacuum pump and dissipating into the atmosphere, achieving the separation of materials and gases.
Compressed air blowback device: During the material conveying process, compressed air is filled into the blowback tank. When a certain amount of dust accumulates on the surface of the filter, the compressed air in the blowback tank is released to generate pulsed airflow and vibration, automatically cleaning the dust and particles adhering to the filter element.
Pneumatic discharge door device: controls the discharge of materials, automatically opens the discharge door when the set material conveying volume or time is reached, and releases the materials into downstream equipment.
Material level automatic control device: Real time monitoring of the material height in the silo through sensors. When the material reaches the set low level, it automatically starts conveying; When reaching a high level, stop conveying to avoid material overflow.
Stainless steel suction port and conveying hose: The stainless steel suction port is used to suction materials, while the conveying hose connects the suction port to components such as the vacuum hopper to achieve flexible conveying of materials.
Equipment Features
Efficient and fast: Adopting an automated control system, the material conveying speed is fast, which can greatly improve production efficiency.
Flexible and diverse: suitable for conveying various powdered and granular materials, and can also be customized according to actual needs to meet the special needs of different users.
Health and safety: The entire transportation process is carried out in a closed system, which can effectively avoid external pollution, prevent dust leakage and cross contamination, and comply with strict cleanliness standards such as GMP. It is widely used in industries such as food and medicine.
Time saving and labor-saving: It can reduce manpower input, lower the labor intensity of workers, and operators do not have to endure heavy physical handling. The equipment runs stably and can work continuously, improving work efficiency.
Energy saving and environmental protection: Adopting efficient vacuum pumps and airflow design, energy consumption is reduced by 30% -50% compared to traditional mechanical conveying. At the same time, only a single air source is used as the power source, which belongs to the intrinsic safety and explosion-proof equipment, and can be suitable for conveying flammable and explosive materials in high explosion-proof requirements.
Easy maintenance: fewer components, long lifespan, low maintenance cost, and many components adopt modular design, which is convenient for disassembly, cleaning, and inspection. For example, the S-shaped curved flange design can be quickly installed, disassembled, and cleaned.
Application Scenarios
Food industry: widely used for material transportation in sugar, salt, flour and other processes, such as dust-free feeding and ingredients of flour, starch, seasoning, milk powder, sugar powder and other raw materials, to ensure the hygiene, safety and quality stability of food.
Pharmaceutical industry: In the pharmaceutical manufacturing process, drug raw materials, excipients, raw material powders, capsule fillers, etc. can be transported to prevent cross contamination of drug raw materials, meet high standards of cleanliness requirements, and ensure the purification and production efficiency of drugs.
Chemical industry: It can be used to transport chemical raw materials, pigments, alumina, titanium dioxide and other powders to avoid dust explosion risks and ensure safety and accuracy in the production process.
Plastic industry: In plastic production, precise transportation of granular and powdery materials such as polyethylene, polypropylene, etc. can improve production efficiency and quality.
Other industries: It can also be used in the battery industry to transport battery positive and negative electrode powders, the dye industry to transport dye powders, the cosmetics industry to transport various powdered raw materials, as well as various light and heavy industries such as metallurgy, building materials, and agricultural and sideline industries.
Jinkebotong Environmental Protection Technology (Jiangsu) Co., Ltd
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