The emergency plan for white carbon black pneumatic conveying pipe blockage should be comprehensive and specific to ensure quick and effective response in case of pipe blockage, reducing production interruption time and economic losses. The following is an emergency plan framework based on common causes of pipe blockage and anti blockage measures:

1、 Emergency plan activation conditions

When the pneumatic conveying system issues a blockage alarm or the operator discovers signs of blockage such as abnormal increase in conveying pressure or poor material flow, the emergency plan should be immediately activated.

2、 Emergency response process

1. Immediately stop the machine for inspection

• Immediately stop the operation of the pneumatic conveying equipment to avoid further deterioration of pipe blockage.

• Close the relevant valves and cut off the supply of materials and gas sources.

• Organize technical personnel to conduct a comprehensive inspection of the conveying pipeline to determine the specific location and cause of pipe blockage.

• Check for foreign objects, dust accumulation, or clumping inside the pipeline.

  
  

• If it is due to ash source issues (such as settling ash, condensation caused by dust temperature, etc.), the feeding time and ash amount should be adjusted, and the pressure formed by the ash amount of the transmitter should be controlled within a certain range, and the pressure value should be reduced to the lowest point as soon as possible.

• If the blockage is caused by foreign objects or dust accumulation in the pipeline, you can try using compressed air for blowing or dismantling the pipeline for cleaning.

• If the blockage is severe and difficult to handle, consider using a blockage valve to blow the blocked material back into the storage bin, and readjust the conveying parameters before conveying.

• Take corresponding emergency measures based on the cause of pipe blockage:

• After confirming that the blockage issue has been completely resolved, restart the pneumatic conveying equipment according to the normal startup procedure.

• Strengthen monitoring and inspection of the conveying process to ensure stable operation of the equipment.

3、 Preventive measures

To reduce the frequency of blockage in the pneumatic conveying of white carbon black, the following preventive measures should be taken:

1. Optimize system design

• Reasonably design the layout and size of the conveying pipeline to ensure smooth material flow.

• Install blowing and blocking devices on the conveying pipeline to improve the system's anti blocking ability.

• Strictly control the particle size, structural degree, and acetone extract content of white carbon black to reduce clogging problems caused by material properties.

• Ensure stable and reliable gas source pressure to avoid unstable and blocked transportation caused by fluctuations in gas source pressure.

• Regularly inspect and maintain the conveying equipment to ensure that it is in good operating condition.

• Timely replace severely worn and vulnerable parts to avoid blockages caused by equipment malfunctions.

• Strengthen training and education for operators to improve their ability to identify and handle pipe blockage issues.

• Develop detailed operating procedures and emergency plans to ensure that operators can proficiently master and effectively execute them.

By formulating and implementing the above emergency plans and preventive measures, the probability of pipe blockage in the pneumatic conveying of white carbon black can be effectively reduced, ensuring the continuity and stability of the production process.