1. The humidity of the raw material is too high: if the humidity of the raw material exceeds the range that the double roller press granulator can handle, it may lead to the problem of sticky roll skin. The raw material with high humidity is easy to produce adhesion between the roller wheel and the mold, forming a sticky roll skin.

2. The raw materials contain sticky substances: some raw materials may contain some sticky substances, such as gum, fat, etc., which are easy to attach to the roller and mold to form sticky roller skin.

3. The roller temperature is too high: the overheating of the roller will also cause the raw material to adhere to the surface of the roller and form a sticky roller. Possible causes include excessive roller friction, poor lubrication, or cooling system failure.

4. Improper operation: Incorrect operation may lead to sticky roll skin problems in the double roller press granulator. For example, the feed speed is too fast, the roller spacing is not adjusted properly, and the cleaning is not thorough.

5. Equipment wear or damage: If there is wear or damage to the roller wheel, mold and other parts of the double roller press granulator, it may lead to the smooth passage of raw materials, resulting in the phenomenon of sticky roll skin.

For the above reasons, the following measures can be taken to solve the problem of sticky rolls: control the humidity of raw materials, clean and maintain organic fertilizer equipment or adjust the roller temperature to avoid overheating

It is necessary to analyze according to the specific situation, find out the main reasons for the sticky roll skin, and take the corresponding solution.