Control of pulverization particle size The key to this technology is to pulverize various feed ingredients to the particle size most suitable for animal use, so that the compound feed product can obtain the best feeding efficiency and economic benefits. To achieve this goal, we must thoroughly study the optimal use of different animal feed materials for different feed ingredients. For aquafeeds, micro-grinding and ultra-fine grinding techniques must be used.
2. The control of batching accuracy uses error-free computerized batching control technology, so that the amount of ingredients of each ingredient component can be precisely controlled in each batching. For micro-additives, pre-mixed premixes can be used and high precision micro-dosing systems are used.
3. Mixing uniformity control This includes mixing uniformity control technology for compound feed, concentrated feed, additive premix feed, and liquid feed. Choosing the right mixer and the right mixing time and method are key to ensuring the quality of the mix.
4. The granulation quality control firstly controls the quality of the quenching and tempering of the feed, that is, the temperature, time, moisture addition and starch gelatinization degree of the tempering control, so that the state after tempering is most suitable for granulation; secondly, Control the hard particle feed powdering rate, cooling temperature and moisture, particle uniformity, consistency, water resistance. To achieve these requirements, a reasonable steam supply and control system and quenching, granulating, cooling, and screening equipment must be provided, and the control parameters should be scientifically adjusted according to the different requirements of the product.
5. The quality control of the expanded pellet feed or the expanded feed is first to control the quality of the quenching and tempering of the feed, that is, to control the temperature, time, moisture addition and starch gelatinization degree of the quenching and tempering, so that the state after quenching and tempering is most suitable for extrusion puffing. Or expansion; followed by controlling the degree of ripening, density, chalking rate, cooling temperature and moisture, particle uniformity, consistency and water resistance of the expanded pellet feed. To achieve these requirements, it must be equipped with a reasonable steam supply and control system and quenching and tempering, extrusion, expansion, drying, cooling, screening equipment, and scientifically adjust the control parameters according to the different requirements of the product to obtain customer satisfaction products. .
6. Quality Control of Liquid Addition As feed processing technology continues to evolve, many additives are added to powdered, granulated and expanded feeds in liquid form, maximally retaining the activity of these additives and reducing feed costs. The first is to achieve precise control of the amount of liquid added, the second is to achieve uniform distribution or coating of liquid in the feed, and the third is to ensure the stability and validity of the liquid additive after spraying. This requires high-performance atmospheric liquid spray equipment, vacuum spray equipment and control technology.
7. Contamination of feed cross-contamination The main causes of cross-contamination of feed are: mixed leakage during storage; residual contamination in transportation equipment leads to cross-contamination between different products; cross-contamination caused by residues in silos and buffer buckets; Cross-contamination caused by residues in processing equipment; cross-contamination caused by harmful microorganisms, insects, etc. Therefore, it is necessary to adopt the non-residual transportation equipment, silo, processing equipment and correct cleaning, sorting, rinsing and other technologies and independent production lines to meet the increasing feed safety and hygiene requirements.
8. Control techniques for quality control of sanitary feeds include cross-contamination control techniques, as well as the necessary heat treatment sterilization techniques for feed. Heat treatment includes high temperature cooking, extrusion, high pressure processing, ultraviolet irradiation and other process technologies, which can usually be combined with common processing techniques or can be implemented separately.
Source Sample Handling Equipment,Source TCM Decapper 1/6/8 channel
Topscien Instrument(Ningbo China)Co.,LTD , https://www.centrifugesupply.com