With the further enhancement of the expansion technology, many manufacturers to the original use of granulator processing after crushing hard particles of aquafeed processing technology to use directly using the expansion machine to produce small particles of aquafeed, the production of small particles of aquafeed molds are generally 2.0mm, 1.5mm and 1.0mm, and even some manufacturers require particles even smaller, known as the "micro-granule "Expanded feed.
The fineness of the raw material before puffing is not only related to the crushing equipment, but also need to involve the sieving equipment, that is, the fineness of the final raw material is guaranteed by the crushing equipment and sieving equipment together. First of all, the selection and control of crushing equipment is the key to the whole process design. Crushing fineness of raw materials is required to reach 80 mesh, the current general choice of a vertical ultra-fine pulverizer, and the current hammer mill can not meet the requirements. And, the raw material requirements to achieve such fineness, the use of ultra-micro pulverizer also needs to have a strict control requirements.
