Installation, operation and maintenance methods of coal ash dilute phase conveying pneumatic conveyor powder feeder and material seal pump.
Fly ash dilute phase conveying pneumatic conveying to the pulverizer, material seal pump is suitable for conveying materials that are not easy to crush and pulverize. Powder conveying pneumatic powder conveyors and material seal pumps are widely used in foundry, chemical, pharmaceutical, and grain industries. Pneumatic conveying device, conveying pipeline, spherical tee, booster and pressurized elbow constitute a sealed conveying system, which can be equipped with automatic control and electrical control system to realize unmanned control and PLC automatic control of the whole system. At present, various types of powder conveying pneumatic conveying feeders and sealing pumps have been applied to the dilute phase transportation of fly ash in thermal power plants, and satisfactory conveying results have been obtained.
The structure and working principle of the powder feeder of the dilute phase conveying pneumatic conveying equipment of fly ash in the power plant: the dilute phase powder conveying pneumatic conveying powder feeder is composed of a diffusion chamber, a mixing chamber, a movable air duct, an actuator and other parts. The low-pressure air enters the diffusion chamber, the mixing chamber, through the intake tube. The high-speed airflow vaporizes the material around the nozzle through the mixing chamber, and the airflow leaving the nozzle into the diffusion chamber forms a local negative pressure between the nozzle and the diffusion chamber, and the vaporized material is sucked into the conveyor pipe and lifted to the discharge point by the high-speed airflow.