Shrimp feed pellet machine

Steam conditioning is the key technology in the pellet feed processing process. The conditioning effect directly affects the internal structure and appearance quality of the pellets. Steam quality and tempering time are two important factors that affect the tempering effect. High-quality dry saturated steam can provide more heat to improve the temperature of materials and gelatinize the starch. The longer the conditioning time is, the higher the starch gelatinization degree will be. The more compact the particle structure after forming, the better the stability and the greater the hardness will be. For ordinary livestock and poultry, the tempering temperature is kept at 70-80℃ by adjusting the amount of steam added, and the tempering time is controlled at about 30 seconds by changing the length, blade angle, and speed of the conditioner. For shrimp feed pellets, triple-layer conditioners are generally used for conditioning to increase the conditioning temperature and prolong the conditioning time. It is more conducive to improving the stability of shrimp feed pellets in water, and the hardness of pellets is correspondingly increased. 

1. The powdery materials are ripened. The ability of most animals to digest starch is very low, but they can digest cooked starch to a large extent. The conditioner can greatly increase the gelatinization degree of starch under the action of water and heat, and also promote the heat denaturation of protein in the material. The denatured protein is easy to be enzymatically hydrolyzed, thus improving the digestibility and utilization rate of pellet feed.
2. Sterilize powder materials. Most pathogenic bacteria, such as Escherichia coli and Salmonella, are not heat-resistant. Tempering materials with a conditioner at a certain temperature can kill these bacteria and ensure the level of feed hygiene. Compared with drug disease prevention, this method of sterilizing materials with a conditioner has the advantages of low cost, no pollution, no drug residue, and side effects.
3. The conditioning equipment can significantly improve the water resistance of the pellet feed. During the conditioning process, through the hydrothermal effect of steam, the viscous components of the material, gelatinized starch and denatured protein, can fully play the role of the binder, and can effectively bond other components around. Under the extrusion of the molding roller, the particles and particles combine more closely, so that the pellet feed becomes denser and has a smooth appearance, It is not easy to be eroded by water during feeding, which increases the stability of water.
4. The quenching and tempering equipment can improve the granulation property of materials, increase the output, save energy consumption for granulation, and increase the life of the die and roll of the shrimp feed pellet machine. Through tempering, the material can be softened and more plastic. During the extrusion process with the die hole wall, the inner wall of the die, and the outer surface of the pressure roller, the friction force is reduced, which prevents a large amount of mechanical energy from being converted into heat energy during the granulation process, and at the same time, reduces the wear of the die and the pressure roller.

Generally, ordinary livestock and poultry feed plants can choose single shaft paddle type conditioner to ensure about 30 seconds of conditioning time, which can make the starch gelatinization degree reach about 20%, basically meeting the processing requirements of ordinary livestock and poultry feed. The aquatic feed factory shall select a three-layer conditioner to ensure that the ripening degree of the conditioned feed reaches more than 50%.

The shrimp feed pellet machine is the key equipment in feed production. Its function and configuration directly determine the value of the fish feed production line. Under the same formula and process, whoever can improve the comprehensive efficiency of the shrimp feed making machine can win direct economic benefits for the feed factory. Therefore, how making the shrimp feed making machine plays a large role, in reducing the production cost per ton of feed, and improving the feed output and feed quality is a problem that every feed manufacturer needs to solve.

The key functions of the shrimp feed machine are mainly reflected in the following aspects:

1. With corresponding processing technology (conditioning temperature, water content, compression ratio of ring die), it can adapt to feed granulation requirements of different materials and formulas.
2. Under the condition of the same formula and feed specification, its pelleting yield is high, the powder ratio is low, the feed appearance quality is good (incision rate, uniform thickness, consistent length), the particle stability is good, and the feeding effect is good.
3. The shrimp feed making machine operates stably, safely, and reliably, all interfaces are sanitary and sealed, the failure rate is low, and the working time of the ring molding roller is long. The high degree of automation and convenient maintenance.