85 type fish feed puffing machine

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2025-06-02 09:24

The principle of fish feed puffing machine is to make the raw materials uniform through heating, pressure and stirring, and to gelatinize the starch in the raw materials, increasing their water absorption and adhesion, making them easier for fish to digest and absorb. The fish feed puffing machine mainly consists of a feeding system, a heating system, a main transmission system, a lubrication system, and a safety protection system. The feeding system is responsible for feeding raw materials into the machine, the heating system heats the raw materials to a certain temperature, the main transmission system is responsible for pushing and stirring the raw materials, the lubrication system is responsible for lubricating the machine, and the safety protection system is responsible for the safety protection of the machine

The specific steps and principles of the puffing process

Raw material pretreatment: Mix and crush fish meal, fish bone meal, animal and plant fats, starch, vitamins and other raw materials.

Mixing and stirring: Mix the pre treated raw materials evenly to ensure thorough mixing of all components.

Squeezing and puffing: The mixed raw materials are fed into the extrusion chamber of the puffing machine, and the raw materials are extruded and puffed through the rotation and shearing of the twin-screw. Under high temperature and pressure, feed materials are subjected to strong pressure and shear forces, resulting in physical and chemical reactions, and structural changes in components such as starch and protein

Cutting and shaping: Squeezing and puffing feed is cut into different sizes of granules or flakes using cutting tools to meet the needs of different fish species.

Drying and cooling: Drying and cooling the cut feed to improve its preservation and taste.

Packaging and storage: Packaging and storing dried and cooled feed for transportation purposes

Structure and functional components of puffing machine

The main components of the fish feed puffing machine include the feeding device, steam heating tube, screw pushing system, cutting device, and cooling device. The raw materials enter the extruder through the feeding device and are heated and steamed by the steam heating tube. Subsequently, the screw pushing system pushes the steamed raw materials towards the discharge port and cuts them into the desired shape under the action of the cutting device. Finally, the puffed feed is cooled and solidified through a cooling device to form hard particles

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