The surface of pellet is not smooth, low hardness, easy to break, and more powder, which may be caused by raw materials. For raw materials with high crude fiber content, adding a certain amount of grease can reduce the friction between the material and the ring die, which is conducive to the passage of the material through the ring die, and the appearance of the pellets is smoother after formation.
The surface area of the feed pellet mill feed is determined by the particle size. The smaller the pellet size, the larger the surface area, and the faster the material absorbs moisture from the vapor. From the point of view of the efficiency of the pellet machine, the crushing is fine and the pelleting strength is high, but there is much steam, so it is easy to block the machine if you are not careful, and the raw material is crushed too finely, which leads to high power consumption for crushing. Due to the large particle size, it is difficult for the pellet machine to form particles, especially the small aperture ring mold, resulting in high material consumption, low output and high particle content. In addition, due to the complex composition of feed formula, the specific gravity of various raw materials has a large difference, so attention should be paid to the homogeneity of mixing before pelletizing.
