2、 Principle and Characteristics:
Principle:
The PSG series gas-solid injector uses a centrifugal fan (air compressor, Roots blower) as the power source, applies the principle of gas-solid two-phase flow, combines fluidization technology, jet technology, and pressure difference principle, and uses an electric rotary feeder as the feeding device to feed the material into the material and gas mixing chamber. While the material is fluidized in the material and gas mixing chamber, the high-speed airflow generated by the double ring nozzle is used to feed the material into the acceleration chamber, and the suspended flow enters the conveying pipeline. The pneumatic pressure difference is used to feed the material along the pipeline into the receiving bin. The material gas is separated and filtered through a bag filter before being discharged into the atmosphere.
characteristic:
1. Low investment, low operating costs, and significant energy savings
The low-pressure continuous conveying system composed of PSG series gas-solid injectors not only reflects its low investment cost in engineering cost, but also has low operating cost. Due to the absence of inlet and outlet valves, as well as vulnerable parts, the operating costs are low. Additionally, using low-pressure conveying can save about 30% of energy consumption compared to air compressor systems.
2. Easy to operate
The control of the equipment body only includes the electric rotary feeder and the intake valve, so the control of the equipment body only requires "start" or "stop" operation, and the operation of the equipment only requires inspection without manual duty. Due to the simplicity of the continuous pump process system, the control system configured is also correspondingly simple. According to the system configuration, even if a PLC control system is used, if a fault occurs, it has an alarm system and can be manually controlled without affecting the normal operation of the system.
3. Equipment and pipelines have minimal wear and long service life
Due to the use of low-pressure conveying, the flow rate inside the equipment and ash conveying pipes is low, and the conveying concentration is constant. Therefore, the system equipment and pipelines have minimal wear and have a long service life.
4. Convenient and flexible system layout
Due to its small size and low installation height, the device is convenient and flexible in system layout, fully meeting the needs of engineering layout.
5. The quality requirements for the gas source are not high
The continuous pump power air source generally uses centrifugal fans or Roots blowers and compressors, without the need for an air purification system. According to the system design, there are only certain requirements for air volume and pressure. Depending on the situation, a compressed air station gas source can also be used.
6. High system reliability
① The PSG series gas-solid injectors use centrifugal fans or Roots fans and compressors as power sources, and the high performance of the fans determines the operational reliability of the system.
② The pneumatic conveying system composed of PSG series gas-solid injectors can adopt the layout of two ash hoppers sharing one pump under the condition of allowable ash volume on site. Generally, the number of equipment is small, making the entire system simple and reliable.
③ The PSG series gas-solid injector has a stable material to gas ratio, no impact load, and no frequent valve action as in conventional pneumatic conveying processes, greatly reducing equipment failure rates.
3、 The Typical System Process Flow
1. Typical Process Flow 1