застосування відсів технологія в продукт класифікація класифікація є до екран матеріал в більше ніж два компоненти і перенесення назовні узгодження до різні потреби.
Reason. The feed industry is mainly used in the grading of crushed materials, granular materials and the determination of material particle size. 1. Grading of crushing materials. The secondary grinding process requires the use of screening technology. In the production of ordinary livestock and poultry feed, rotary screen or vibrating screen is generally used, and the material on the screen is recycled and crushed, and the material under the screen goes into the distribution bin. According to the information, the screen size is more appropriate for p1.2mm. In the micro-grinding process of premix and fish and shrimp material production, because the material grinding size often requires all through the 60-80 target sieve (0.42-0.18mm), such as the use of mechanical screening, because the particle size is too small, the material cohesion, the particle screening is difficult, it will cause the screening efficiency to decrease, the reflux crushing amount to increase, thus reducing the crushing output. Pulverizing energy consumption increases. Airflow classification can solve this contradiction. Airflow classification is a generalized screening technology, which controls the particle size of the material reflux or into the next process by adjusting the airflow process parameters, and the air volume, wind speed and wind pressure of the airflow change with the material variety and its particle size control range.
2. Grading of pellet feed processing. In pellet feed processing, in order to increase the output of pelletizing machine and reduce the energy consumption of pelletizing machine, large-diameter die holes are often used for production and then broken into small particles. After the particles are broken, they need to be graded to separate the overly fine powder (the unformed powder in the granulation process or the powder produced during the crushing process) and the excessively coarse particles (the particles that are not sufficiently broken), so that the particles entering the finished product processing section meet the product particle size requirements. The grading of pellet feed is carried out with two layers of screen surface. The upper layer is reflux crushing, the lower layer is reflux granulation, and the middle layer is finished product. It can be seen that the size of the screen used in the grading screen directly affects the product particle size. The size of the screen used for classifying products with different particle size specifications is 2.40, 3.20, 4.00, 4.75, 6.35, 9.50, 12.7 and broken particles, and the corresponding size of the screen (mm) is 1.65, 2.23, 2.92, 3.89, 5.21, 8.97, 11.5 and 1.16. It can be seen that in order to control the particles of a certain size through the sieve, a sieve with a diameter smaller than the size value should be used
The градація екран в в типовий гранулювання процес є загальний подача безпосередньо до від елеватор, тому що вібраційний екран (SFJZ серія) є легко до причина матеріал до концентра в середина з екран тіло, використання швидкість з екран поверхня є низький, і локальний матеріал шар є занадто товстий, впливовий оціночний ефект, так це рекомендований набрати a буфер відро (з a напрямним тарілка) в грейд подача порт до зробити подача рівномірно уздовж ширина ширина екран поверхня.
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