When the fan extracts air from the powder collection tank, a strong negative pressure is generated inside the tank. The powder in the powder bag is sucked into the powder collection tank along with the air through the powder suction pipe. The filter inside the powder collection tank prevents dust and small particles from being extracted with the air; In this process, the pressure storage tank next to the powder collection tank is filled with a certain pressure of air. When the suction is completed, the air in the pressure storage tank will be released in a pulse to blow back the filter and remove the material adsorbed on the filter element, so that the filter element can maintain its normal filtration area without affecting production.

When the system starts running, the unloader below the powder collection tank starts working, continuously dropping the powder material. In order to prevent the accumulation of powder in the tank and prevent it from falling easily, a high-frequency oscillator is installed below the tank to ensure smooth powder dropping; If the powder conveying capacity is not high, an intermittent feeding method can be used, using gas jet to form negative pressure. When the powder bucket is filled with material, the suction is automatically stopped through the level control of the level gauge, and the back blowing air port is opened. The pneumatic discharge valve is opened to discharge the material, and then controlled by the level gauge at the bottom of the discharge port. When the level is lower than the level, the discharge valve is closed and the suction resumes. The above continuous or intermittent feeding processes can be set and automatically controlled by PLC.

Powder conveying equipmentfeature

1. It can replace the inefficient manual powder conveying method and be directly used in production processes, reducing air and raw material waste;

2. The airflow induction system is designed to prevent sudden powder eruption;

3. System economy, simple and ready to use - unlike expensive traditional large and complex pre installed powder conveying systems;

4. Lightweight: Can be easily moved and used anywhere (site to site), ready to use, no installation and debugging required;

5. There are 2-inch and 3-inch calibers, available in stainless steel and aluminum alloy materials;

6. Can be applied to various dry powders, such as calcined silica, white carbon black, expanded mica stone and other non mineral industry powders; Organic powders such as acrylic resin and silicone resin; The chemical, raw material, and intermediate production industries, as well as the transportation of all lightweight powders, have a wide range of applications.

Powder conveying equipmentIt is a new type of powder pneumatic conveying equipment, belonging to the category of low-pressure dilute phase conveying. It uses the injection effect of high-speed airflow to transport powdered materials, and has good performance within an equivalent distance of 450m and a range of 40m. Currently used for medium to short distance transportation of dry and loose powder materials such as fly ash, alumina powder, dry kiln ash, coke powder, cement powder, etc.

Powder conveying equipmentIt has now been applied to the transportation of finished cement in cement plants and the transportation system of fly ash in thermal power plants. Compared to traditionalPowder conveying equipmentIt is an undeniable fact that the investment in warehouse pumps and negative pressure conveying is small, and the maintenance cost is low. However, due to its limited transportation distance (equivalent distance of 500 meters, actual distance of 300 meters), its development under long-distance transportation conditions in large thermal power plants is restricted, and further research is needed on this issue. But overall, it is a choice for medium to short distance transportation.