Reasons for failure of feed pellet machine ring die

Feed pellet machine play a crucial role in modern feed production, and as the heart of these machines, the ring-die is also a part prone to wear and tear. If the ring-die fails, the machine cannot function properly.

Analysis of Ring-Die Failure in Feed Pellet Machine and Preventive Measures

Feed pellet machine play a crucial role in modern feed production, and as the heart of these machines, the ring-die is also a part prone to wear and tear. If the ring-die fails, the machine cannot function properly. Therefore, understanding the causes of ring-die failure in feed pellet machine is essential for maintaining their operation.

Basic Working Principle of the Ring-Die

The ring-die of a feed pellet machine is driven to rotate by an electric motor through a reducer. The rollers installed within the ring-die do not rotate on their own but are instead caused to rotate by friction with the spinning ring-die. As production continues, the ring-die gradually wears down and eventually fails.

Observations of Ring-Die Failure in Practice

In actual production, many ring-dies fail before reaching their theoretical limit. Based on the phenomena of failure, we can categorize ring-die failure into three types:

1. Enlargement of Die Holes: After a period of use, the inner wall of the ring-die’s small holes will wear down, causing the hole diameter to increase. Once the diameter becomes too large, the produced pellet feed will no longer meet usage standards.
2. Non-uniform Wear of the Inner Wall: The wear of the ring-die’s inner wall is often not uniform, leading to a rough surface that affects the smoothness of the feed flow, reducing the feed amount and decreasing the efficiency of the feed pellet machine.
3. Reduction in Structural Strength: As the inner wall wears down, the ring-die’s inner diameter increases, and the wall thickness decreases. Before the occurrence of the first type of failure, the inner wall of the discharge holes may also wear down, causing the wall thickness between the discharge holes to decrease, reducing structural strength. Once cracks appear, they continue to expand until the ring-die fails completely.

Measures to Prevent Ring-Die Failure

To extend the service life of the ring-die, the following measures can be taken:

• Regularly inspect the wear condition of the ring-die, especially after high-load operation.
• Choose appropriate materials and heat treatment processes to enhance the wear resistance and strength of the ring-die.
• Optimize the feed formula to reduce wear on the ring-die.
• Employ advanced manufacturing techniques to improve the machining accuracy of the ring-die.

Conclusion

By analyzing the causes of ring-die failure and taking appropriate preventive measures, the service life of the ring-die in feed pellet machine can be effectively extended, reducing downtime and increasing production efficiency. This not only helps to reduce production costs but also ensures the quality of the feed.

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