There are several methods for controlling dust from not being released in dilute phase conveying system factories:

1. Reasonable sealing measures should be designed: In the design of dilute phase conveying systems, equipment and components with good sealing performance should be used, such as sealed conveying pipelines, sealed valves, etc. By optimizing the design, ensure that all connection points and interfaces of the system can be effectively sealed to prevent dust leakage.

2. Regular inspection and maintenance: Regularly inspect and maintain the dilute phase conveying system to promptly detect and repair any air leaks and poorly sealed components. This can ensure that the sealing performance of the system is always in good condition, reducing the risk of dust flying out.

3. Install dust collection equipment: Dust collection equipment such as dust collectors, dust hoods, etc. can be installed at the outlet of the dilute phase conveying system or in places where dust is prone to external emissions, to directly collect dust and avoid dust emissions.

4. Control airflow velocity: By reasonably controlling the airflow velocity in the dilute phase conveying system, the carrying and outward lifting of dust can be reduced. Generally speaking, reducing the airflow velocity appropriately can reduce the risk of dust emission.

5. Use dust-proof materials and equipment: In the design and selection of dilute phase conveying systems, priority should be given to selecting dust-proof materials and equipment, such as dust-proof tape, dust-proof sealing rings, etc. These materials and equipment have good sealing performance, which can effectively prevent dust from flying out.

6. Training employees and strengthening management: Provide relevant training to factory employees to understand the usage methods and precautions of dilute phase conveying systems, and improve their safety awareness and operational skills. At the same time, strengthen management, establish scientific process flow and safety management system, standardize operations, and reduce the risk of dust emission.

Overall, through reasonable design, regular inspection and maintenance, installation of dust collection equipment, control of airflow speed, use of dust-proof materials and equipment, as well as training of employees and strengthening management, the outward emission of dust in the dilute phase conveying system can be effectively controlled, ensuring the environmental hygiene of the factory and the health and safety of employees.