Preventive measures for clogging of the discharge port of the granulator

1. Raw materials
Control the humidity of raw materials
Excessive humidity of raw materials is one of the common causes of clogging of granulators. If the humidity of raw materials is high, they are easy to stick together during the granulation process, which may block the discharge port. For example, in a pharmaceutical granulator, if the moisture content of the raw materials is too high, the prepared granules are easy to stick near the discharge port. Therefore, it is necessary to ensure that the humidity of the raw materials is within the appropriate range. For raw materials with high humidity, measures such as drying can be taken.

Ensure the purity of raw materials
Too many impurities in the raw materials may also cause blockage. Impurities may accumulate at the discharge port, hindering the normal discharge of materials. Before adding raw materials, pretreatment operations such as screening can be performed to remove large particles of impurities, foreign matter, etc., to maintain the purity of the raw materials and reduce the risk of blockage.

2. Equipment operation
Standardized operation procedures
Operators need to be familiar with the working principle and operation method of the granulator. Improper operation, such as failure to follow the correct order when starting or stopping the granulator, may cause the material to accumulate and block at the discharge port. For example, if the equipment is shut down directly without emptying the remaining material during shutdown, the residual material may condense or clog at the discharge port. Operators should start the machine, add materials during operation, shut down the machine, and other operations in accordance with the standardized operating procedures to ensure stable material transportation and normal discharge.

Uniform feeding
Uneven feeding speed may cause untimely material processing inside the granulator, resulting in blockage of the discharge port. If the feeding speed is too fast, the granulator may not have time to process it, and the material will accumulate at the discharge port; if the feeding speed is too slow, the material may stay in the equipment for too long and dry and clog. To maintain the uniformity of the feeding speed, the feeding speed should be reasonably adjusted according to the processing capacity of the granulator, and the continuity of the feeding process should be ensured to avoid intermittent feeding.

3. Equipment maintenance
Clean the equipment regularly
During the operation of the granulator, there will be material residues and impurities accumulated inside, especially near the discharge port. Regularly cleaning the granulator, including the discharge port, granulation mechanism and other components, can effectively prevent blockage caused by the accumulation of residual materials. For example, regularly dismantle some structures of the discharge port for deep cleaning to remove materials and impurities attached to the wall.

Inspect and maintain parts
Regularly check the key parts of the granulator, such as the granulation mold, transmission parts, etc. If the granulation mold is severely worn, it may affect the formation and discharge of the particles, causing blockage; failure of the transmission parts may cause the material to be transported unsmoothly in the equipment, and then block the discharge port. Replace the worn parts in time to ensure the normal operation of all parts of the equipment, thereby preventing the discharge port from being blocked.