A floating fish feed machine is specialized equipment used to produce aquatic feed that floats on the water surface. It produces nutritionally balanced feed suitable for aquatic species such as catfish, tilapia, carp, and shrimp, minimizing feed waste and improving feed efficiency. The following is an introduction to it:
Main Components and Functions of a Floating Fish Feed Machine
Pulverizer: Used to grind raw materials such as bones and ground meat into a paste, providing a suitable base material for subsequent extrusion processing.
Mixer: Thoroughly blends raw materials such as corn flour, rice flour, soybean flour, fish meal, and additives according to the formulated ratio to ensure uniform distribution of nutrients.
Screw Feeder: Uses a screw conveyor to transport the mixed raw materials to the extruder feed hopper, reducing waste during transportation and allowing for adjustable conveying speeds based on production output.
Twin-Screw Fish Feed Extruder: Utilizes high temperature and high pressure to extrude and pelletize the raw materials, altering the product's particle structure and facilitating digestion and absorption by fish and other aquatic species. Particle size and shape can be controlled by adjusting the rotary cutting motor speed and changing the die. Air conveyors: Use wind speed to transport feed pellets to the drying equipment, reducing labor costs and ensuring a clean and hygienic transportation process.
Ovens: Available in various types, such as electric ovens and oil ovens, these ovens use a reciprocating mesh belt to dry the pellets, reducing moisture content to an appropriate range and extending the shelf life of the feed.
Oil sprayers: Spray oil, attractants, and other additives onto the surface of the feed pellets in a mist-like manner, ensuring a more even adhesion.
Seasoning lines: Use high and low rollers to evenly apply seasonings and other additives to the pellets.
Cooling conveyors: Use fans to transport the feed to the next processing step, lowering the surface temperature and promoting oil solidification.
Vibrating screens: Vibrating screens screen pellets to ensure uniformity. Small particles that are screened out can be recycled, reducing waste.
Packaging machines: Used to weigh and package feed, making it easier to store, transport, and use.
Operating Principle of a Fish Floating Feed Machine:
Fish floating feed machines primarily use twin-screw extruders to produce pellets. The mixed raw materials are fed into the extruder. The rotating screw transports the raw materials forward and compresses them. Heating from the barrel and friction between the materials, the screw, and the barrel creates heat, subjecting the materials to high temperature and high pressure. The materials are then extruded from the die. Due to the sudden decrease in pressure, the water vaporizes instantly, causing the feed pellets to expand, forming a floating feed with a certain porosity and low density that floats on the water surface.
Advantages of Floating Fish Feed Machines
Floating fish feed machines offer a high degree of automation: Many production lines automate the entire process, from raw material grinding, batching, mixing, to final packaging, effectively saving labor costs and improving production efficiency.
Floating fish feed machines offer high production flexibility: By changing the mold and adjusting process parameters, they can produce feed pellets of various sizes and shapes to meet the feeding requirements of aquatic species at different growth stages, such as catfish, tilapia, and shrimp.
The floating fish feed machine ensures feed quality: on the one hand, the high temperature and high pressure puffing process can gelatinize the raw starch and denature the protein, making the feed easier for aquatic animals to digest and absorb, and can also kill harmful microorganisms in the raw materials; on the other hand, the equipment can accurately control the drying, oil spraying, seasoning and other links to ensure balanced nutrition and stable quality of the feed.
