Roll sticking is a common problem with new double roller press granualtors. The following are the causes and solutions:
Causes
1. Excessive moisture in the raw materials: Excessive moisture or oil content in the raw materials causes the material to adhere to the roller surface, forming a sticky substance as the rollers rotate, which then adheres to the rollers.
2. Rough roller surface: The roller surface of new equipment may not be smooth or worn, preventing the raw materials from being fully dispersed as they pass through the rollers, resulting in a sticky substance.
3. Too little roller spacing or improper adjustment: During operation, if the roller spacing is too small or improperly adjusted, the raw materials cannot pass smoothly, resulting in a sticky substance.
4. The raw materials contain a large amount of fine powder or granular material: These materials easily adhere to the roller surface, forming a sticky substance as the rollers rotate.
Solutions
1. Control the moisture and oil content in the raw materials to prevent the raw materials from sticking to the rollers. Organic fertilizer raw materials with high crystalline water and free water content are prone to sticking to the rollers if they are fed directly to the double-roller extrusion granulator without turning and airing. If the production line is operating, a fertilizer dryer can be added; if the production line is small, turning and airing are necessary.
2. Regularly maintain and service the roller surface: Ensure the roller surface is smooth and rough to reduce the sticking of raw materials as they pass through the rollers. Regularly grinding the roller surface can improve its smoothness.
3. Adding an appropriate amount of anti-sticking agent to the raw materials can effectively prevent the raw materials from sticking to the roller surface, reducing the possibility of sticking.
