In aquatic feed production process, in addition to reasonable formula, a very important point is that the process must be gentle to prolong the feed in the water-soluble, which is very important to aquatic animal health and growth. We have the most experienced design engineers, reasonable recommendation, diversified technology production line design.
Aquatic Feed Pellet Making Process(Sinking Pellet Type)
1. Primary Grinding
As the pretreatment of fine-grinding or ultra-fine grinding in aqua feed pellet line, primary grinding (or coarse grinding) is designed to improve the working performance and working efficiency of the fine grinding mill to ensure constant quality of finished feed pellets.
2. Primary Proportioning and Batch Mixing
In such processing section, the major ingredients, are batched by an electronically controlled proportioning system, and then sent to feed mixer for primary mixing. Primary proportioning and batch mixing are designed to limit the variation of material particle size before ultra-fine grinding, so as to further ensure constant quality of finished product.
3. Secondary Grinding
Eating little, short digestive tract as well as bad digestibility of the aquatic animals require finely ground feed particles. Secondary grinding usually is executed by a specialized pulverizer (ultra-fine grinding) or a fine-grinding hammer mill.
The aquatic feed pellet mill adopts two or three layers jacketed conditioners which can continuously mix materials with hot steam. The feed ingredients run through feeder into conditioner and are mixed in the conditioner with hot steam, then they go into the pelletizing chamber through blanking taper slot. By scraper the powder material enters into the pelletizing zone. And then the material will be pressed by ring die and rollers into pellets. The pellets are discharged from the die hole and cut into the requested size by the cutter.
5. Coating and Cooling
If necessary, liquid fats, flavors, and vitamins can be added externally to feeds . Post liquid application by coating only avoid the risk of damaging heat sensitive ingredients, but also improve the palatability and reduce powder generation of the finished product. After coating, aqua feed is cooled as required.
When bagging aqua feed pellets, the amount of air entrained in the bag should be controlled to a minimum, so as to prevent feed from oxidation and deterioration. Therefore, it is recommended to close the bag through sewing plus heat sealing (plastic film lining), which can prolong the shelf life of finished product by 50~100%.
Pellet Feed Solutions
Our feed pelletizing solutions feature great flexibility. According to different feed types, different output configuration can be customized. Livestock and poultry feed production solutions applicable for different animals like chicken, duck, rabbit, pig, etc. While our leading aquatic animals (fish, shrimp, crab, etc.) feed production line solutions meet customer’s individual line from 0.5 to 20 tons per hour production needs. For fish feed pellet line, we also provide two different types solution, one is floating fish feed line, the other is sinking fish feed line.