Fish Feed Dryer Overview
A fish feed dryer is usually used in combination with a fish feed cooler in the fish feed pellet line. Fish feed pellets are transported from the fish feed extruder to the pellet dryer machine, and then conveyed on the mesh belt which is made of stainless steel. Speaking of the mesh belt, it has with multi-layer structure and is movable, which makes our dryer fast-drying & efficient, so the dryer machine is also called Mesh-belt Type Fish Feed Dryer. This pellet dryer machine is widely applied in chemical, food, medicine, building materials, electronics, and other industries, especially applicable to dry granular materials and pellets.
Characteristics of Mesh-belt Type Fish Feed Dryer
◆High-efficiency and energy saving
◆Easy to install and maintain
◆Fast drying speed, high evaporation intensity
◆Convenient drying parameters adjustment, flexible operation, wide adaptation
◆Higher work capacity, the range of drying time is adjustable
◆Standardized production, Users can increase the number of segments according to production
Working principle of Fish Feed Pellet Dryer
There is a circulating fan, heating device, fresh-air-suction-system, and exhaust-exiting system. Operators can take independent operational parameter control of temperature, humidity, and exhaust gas re-circulation rate, which ensures the reliability of the fish feed pellet dryer, and the optimization of the operating conditions. Mesh-belt Type Fish Feed Dryer has good security and operation flexibility. The drying process is carried out in a fully sealed box, effectively avoiding dust leakage. Damp materials are evenly spread on the mesh belt which is driven to move by transmission device in the dryer machine. From bottom to top, hot air flows through the mesh belt, and fish feed pellets on it. In the drying process, heat exchange is sufficient & uniform, with drying efficiency being extremely high.
Operation and Maintenance of Fish Feed Dryer
Head of the machine
The machine head is composed of two driven rollers, a tightener, a feed inlet, and an outlet.
Passive bearing bears the tension and determines the tightness of the mesh belt, so bearings at both ends of the passive rollers should be regularly lubricated with high temperature (above 200℃) lubricating grease, to ensure the normal operation of the dryer.
The tightener is to adjust the mesh belt tightness. In the first installation, the mesh belt should be tightened, and after heating up, tightened again (because of the thermal expansion).
This stage is the actual working area of material drying, blast pipe, and discharge pipe being installed on the top. Hot air flows into the underpart of the inner chamber from both sides, then extracted by the wind turbine from the middle. There are control valves being installed on the air inlet and outlet to adjust air velocity.
The transmission part is installed at the end of the fish feed pellet dryer. The tightness of the transmission chain can be adjusted by adjusting the position of the gear reducer. Transmitting gear on the other side of the gear reducer will also inject lubricating oil to extend its service life.
Parameter of Fish Feed Dryer
||Mesh belt width (mm)
||Total power (kw)