Details:
A. Overview:
Compressed gas is used as the power source, sealed pressure vessel is used as the transmitter, relying on static pressure mandatory transmission is called positive pressure dense phase transmission tank pneumatic transport, general air source pressure is 0.5Mpa ~ 0.7Mpa, operating pressure 0.3 ~ 0.5Mpa
B. System features:
1. Low conveying speed and less wear on pipelines;
2. Low gas consumption, high solid-gas ratio, but high pressure;
3. The control must be automatic, with high requirements for various electrical components;
4. The conveying tank can only be used for clearance, generally there are a small amount of materials in the pipeline memory;
5. Long conveying distance, up to more than 1000m;
6. A supplementary air pipe can be installed outside the conveying pipe, and a variety of ways can be used to supplement air and drain blockage, but the electric control is complicated;
7. Sending tank (also known as warehouse pump) is a pressure vessel, which is mandatory for signing equipment;
8. The air source is generally a screw air compressor, and the post-treatment equipment must be matched;
9. Maintenance requirements are high, as are the quality of maintenance technicians.
C. Basic Principles:
Due to the effect of pressure, material from sent tanks into the duct, compressed gas by the opening of the solenoid valve must be frequency pulse airflow (air knife), with the help of air blade pressure is greater than sending anchored material cutting ChengLiao tank pressure, depending on the material before and after the bolt static pressure difference as a driving force, the material forward, reached after separation device implementation of feed gas separation, material falling into a bunker, gas discharged into the atmosphere, implementation.
