Effect of pulverization particle size on PDI: Particle Feed Durability Index PDI

LIMA Fish Feed Machine,Chicken Feed Machine

The smaller the pulverized particle size, the larger the surface area of u200bu200bthe particles, the more easily bond between the particles, and more easily absorb heat and moisture when the mass is mass, and the gelation of the starch is better, and the resulting particles are relatively, smooth, not easy. Produce cracks and fine powder. However, due to the high energy consumption of the pulverization process, the finer the raw material is not the strigenated, the better, according to the diameter of the particles and the type of sieve specification and pulverizer type of the pulverizer reasonably. According to the author’s research, it is generally reasonable as follows.

LNG China Feed Industry Information Network – Based on Feed, Service Animal Husbandry

For livestock, general hammer pulverizer, particle size and screen of the sieve There is the following correspondence: production? Quasi 4 ~ 5 mm particles, use 2.5 ~ 3 mm screening; production? Accumulation 3 ~ 3.5 mm particles, use? Ratio 2 ~ 2.5 mm screen hole; production? Ratio 2 ~ 2.5 mm pellets, use the 8th ratio of 1.2 to 1.5 mm.

LNG China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

For fish feed, the raw materials are generally required to pass 40 target quasi-screen sieves. More than 20%, a hammer microflac in the sieve diameter is 0.8, 1.0, 1.2, 1.5 mm.

LNG China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

For shrimp feed, generally require the raw materials to be used through 60 target quasi-screen, 95%. Multi-smash.

LNG China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

In addition, the uniformity of the particle size of the raw material is very important, and the raw materials after the crushing materials cannot have excessive particles, excessive particles. It is not easy to bind to other raw materials and affect the uniformity of the regulation, and the particulate surface is easily generated and a radiant crack around the large particles, which causes the particles to be damaged, affecting the PDI of the particles.

LNG China Feed Industry Information Network – Based on Feed, Serving Animal Husbandry


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