The positive pressure pneumatic conveying system, also known as the pressure pneumatic conveying system, refers to the way in which the positive pressure gas is used to convey the materials. The pressure pneumatic conveying system carries the animal materials in the pipeline, which can realize the combination of various processes in the production process. It is widely used in various industrial fields to transport powder, granular and granular mixtures from one place to another in an efficient, safe and reliable way, overcoming the problems faced by traditional mechanical conveying methods, such as blockage, wear and dust leakage.

Positive pressure pneumatic conveying uses positive pressure air source to blow in the pipeline at high speed. Generally, the air sources used include centrifugal fan, Roots fan, air compressor, etc. Positive pressure pneumatic conveying is a dynamic pressure conveying mode, which is divided into positive pressure dilute phase conveying and positive pressure dense phase conveying. The positive pressure dilute phase conveying system is usually used to convey bulk materials from one place to one or more destinations, which has longer distance and larger capacity than the negative pressure system. The positive pressure pneumatic conveying system uses a blower to connect with single or multiple downstream material inlet points. Each product enters the conveying line through a rotary air lock valve to maintain the pressure difference between the ambient atmosphere and the conveying line. The positive pressure pneumatic conveying material and air are blown out from the outlet of the pipeline at the point of single or multiple use, separated by the filter receiver or cyclone separator, or directly enter the process vessel and discharged to the downstream dust removal equipment. The positive pressure pneumatic conveying system provides higher efficiency than the negative pressure system, can be transmitted over a longer distance, and can be directly blown into the process and storage container without using the rotary air lock valve.

Positive pressure pneumatic conveying system is the most common system in all pneumatic conveying systems, which transports materials to the receiving point under atmospheric pressure.