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  • Positive Pressure Dilute Phase Conveying

Positive Pressure Dilute Phase Conveying

The positive pressure dilute phase pneumatic conveying system can achieve pipeline dust-free conveying through two types of gas sources. The gas source is provided by Roots blower or air compressor respectively, but Roots blower is still widely used as the gas source for most working conditions. Roots blower uses gas pressure below 1kg/c ㎡ and adopts positive pressure (pressure feeding) to push materials through the entire conveyor line at a high speed. Therefore, this conveying method is called low-pressure high-speed system, which has a high gas material ratio.

Using a Roots blower as the power source and air or nitrogen as the conveying medium, the material is dispersed and suspended in the pipeline at a high speed, with a conveying distance of several hundred meters. At the beginning of the system, there is an acceleration of about 10m/s, and at the end, it can reach a high speed of 30m/s, resulting in a high airflow velocity. The initial pressure of the conveying pipeline is generally lower than 0.06Mpa, while the end pressure is basically close to atmospheric pressure.

Product advantages

working principle

Main equipment: The main equipment of the positive pressure dilute phase conveying system consists of Roots blower, rotary feeder, suction chamber, acceleration chamber, PLC control system, top dust collector, conveying pipeline, wear-resistant elbow and other pneumatic conveying equipment.

Working Principle: The system uses the airflow generated by the Roots blower as a carrier to transport bulk powder materials to designated equipment. The rotary feeder is responsible for unloading materials into the pipeline for pressure feeding, while the flexibly arranged conveying pipeline ensures the rationality of the factory equipment process configuration. The system has high airtightness, reduces dust flying, and improves environmental hygiene conditions. In addition, there are few moving parts, which are easy to maintain and automate. Efficient bulk material transportation not only improves efficiency, but also reduces packaging and handling costs. During the transportation process, various process operations such as mixing, crushing, grading, drying, cooling, dust removal, and other chemical reactions can also be achieved.

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