Shandong Juheng Environmental Protection Equipment Co., Ltd. adopts advanced German technology to use double tube pneumatic conveying to transport carbon black to a relatively ideal state. Its characteristics are low airflow velocity, average velocity not exceeding 7.5m/s, high mixture concentration of feed and gas, and low pipeline blockage. It can be restarted in case of shutdown and is suitable for transporting particle carbon black that is easy to rub and break and powder carbon black that is easy to adhere.

   thatPneumatic conveying systemIt mainly consists of a warehouse pump, a dual pipe conveying pipe branching valve, an unloader, and a dust removal system. The bin pump is made of carbon steel and coated with anti adhesion coating on the inner wall. It is equipped with a feed valve, exhaust valve, discharge valve, upper and lower level gauges, safety valve, and intake system. The capacity of the warehouse pump is lm, 1.5 ㎡, 2.5 ㎡, and 4 ㎡. The compressed air intake piping consists of solenoid valves, gate valves, and Laval nozzles. The entire process of feeding, fluidization, pressurized transportation, and pipeline dredging is controlled by a microcomputer. The conveying capacity is 2-15t/h. The following diagram shows the process flow of the F-S carbon black pneumatic conveying system.

   The structural feature of the feeding pipe is that a one-way valve and nozzle are installed on an outer bypass pipe parallel to the feeding pipe, which is connected to the feeding pipe at a distance of about 500~1500mn. When the feeding plug is too long, the pressure difference before and after the feeding plug exceeds a certain range, and the compressed air in the outer bypass pipe automatically opens the one-way valve from the nozzle into the feeding pipe, cutting the material into a length that is easy to transport, thus ensuring the smooth flow of the material. The feeding pipe is a specially designed rubber hose, covered with a thin protective tube made of aluminum alloy. The inner diameters of the rubber hoses are 100mm, 110mm, 125mm, 150mm, 175mm, and 200mm, respectively. The branch valve is a single channel two station, with rubber lining on the working surface, driven by a rack type dual cylinder, equipped with a contactless proximity switch, and controlled by an electromagnetic component. The carbon black pneumatic conveying system works smoothly and reliably, and has been widely used in China's tire and rubber industry.