On the basis of transmitting power,pneumatic conveyingUsing compressed air as the conveying medium, the material is transported from the feeding buckle to the discharge port at the other end. According to the concentration of the transported material and gas, it can be divided into two types: dilute phase and dense phase. In terms of pressure form, it can also be divided into positive pressure, positive negative pressure, and negative pressure structures. There are many types of pneumatic conveying systems.

Below are several types based on classification.

1. Classify according to the conveying method. There are intermittent pneumatic conveying systems and continuous pneumatic conveying systems. Intermittent pneumatic conveying systems are controlled by the pressure of the pump and the pressure of the pump during the conveying process. There is continuous transmission, and the roommate rotates the feeder for conveying.

2. Positive pressure pneumatic conveying systems can be divided into positive pressure dense phase and positive pressure dilute phase. The conveying equipment for positive pressure dense phase includes bin pumps, pneumatic lift pumps, jet pumps, screw conveying pumps, and rotary feeders. The positive pressure dilute phase pneumatic conveying system includes Roots blower, rotary feeder, dust collector and other equipment, as well as plug pneumatic conveying system, low-speed rope flow pneumatic conveying system, mass flow pneumatic conveying system and rope flow pneumatic conveying system.

3. Classification of negative pressure pneumatic conveying systems: According to the classification of ash receiving equipment, there are vertical ash receivers, CF type ash receivers, and E-type ash receivers. According to the vacuum equipment, there are steam and hydraulic pump negative pressure pneumatic conveying systems, water ring vacuum pump negative pressure pneumatic conveying systems, and negative pressure fan negative pressure pneumatic conveying systems.

4. According to the pressure of transportation. Negative pressure pneumatic conveying systems usually use dilute phase conveying. The positive pressure pneumatic conveying system has both dilute phase conveying and dense phase conveying.

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