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How does the pellet feed machine realize low-temperature pelletization?

2021-05-19

It takes the lead in the industry for solidification, molding and maturation, but occasionally encounters low-temperature granulation. Then, how does the pellet feed machine realize low-temperature granulation?

Low-temperature granulation refers to the granulation of some materials that are not used for maturation in the use of pellet feed machines, or they are denatured or mutated after maturation, but they also need to be fixed and shaped. For example, the types of biological feed, fungus feed, and saccharification feed in the feed industry, as well as the extrusion granulation of materials such as inorganic salts, biological fertilizers, active bacteria fertilizers, and humic acid. Some of these materials are because the extruding temperature of the pellet machine or the pelletizer kills the beneficial bacteria carried in the material itself, some is that the temperature of the extrusion temperature changes the shape and chemical characteristics of the original material, and the other is that the material itself has little influence , But the water analysis caused the material to become sticky due to the heating of the extrusion, resulting in the blocking of the car and the burning of the motor.
Once the pellet feed machine encounters this situation, we must treat it differently. Some materials increase the moisture content and lower the extrusion temperature to change the current situation of extrusion temperature rise. This is a lower-level strategy suitable when the original machinery and mold cannot be changed; some reduce the compression ratio of the mold through mechanical grinding to achieve the purpose of pellet formation but the temperature is not high; some use the technical guidance of the pellet feed machine manufacturer, Provide molds with small compression ratios for production; there is also the use of old molds to achieve low-temperature granulation. Generally speaking, the old mold has been used, the aperture taper of the mold becomes smaller, and the thickness of the mold becomes thinner. The extrusion temperature of such a mold will not be very high. Some pellet feed machines can control the extrusion temperature of pellets through the amount of feed and the uniformity of feed. In addition, within the scope permitted by conditions, the pellet feed machine can also realize low-temperature pelletization through air cooling.
The above are several common measures for pellet feed machines to realize low-temperature pelletization, and hope to bring you help and enlightenment.

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