Positive Pressure Conveying Equipment

This series of products adopts pneumatic conveying technology with positive pressure feeding. Conveying pipelines can be flexibly arranged according to the actual plant layout, enabling centralized or distributed conveying, as well as vertical lifting and long-distance transportation. The conveying process is not affected by climatic conditions, ensuring that materials remain dry, which is beneficial to efficient production and environmental protection.

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Principle Introduction

Under pressure, the material enters the conveying pipeline from the sending tank. Compressed air is controlled by a solenoid valve that opens and closes at a certain frequency to generate a pulsed airflow (air knife). With the airflow pressure (air knife pressure) exceeding the pressure inside the sending tank, the material is cut into material plugs.

Relying on the static pressure difference before and after the material plugs as the driving force, the material is pushed forward along the pipeline. Upon reaching the separation device, gas-solid separation is carried out: the material falls into the storage bin, while the gas is discharged into the atmosphere, thus completing the conveying process.

Equipment Advantages

• Long conveying distance, high conveying pressure, and large capacity;
• Simple feeding device structure with low failure rate;
• High solid-to-air ratio, low air consumption, and smaller pipeline diameter;
• Easy automation, enabling continuous or intermittent conveying;
• Capable of one-to-multiple point material distribution via rapid switching with a three-way valve.

Positive pressure conveying is widely applied in industries such as pharmaceuticals, food processing, chemicals, advanced materials, energy, and building materials.