The equipment is designed and engineered to fit in tight locations, which makes it perfect for vessels, as well as smaller locations on land.
Fjell cooperate with multiple partners to offer the best available technologies assembled as compactly as possible without compromising the quality. With FTG's solution for a complete fishmeal plant, it will be possible to place the plant in the immediate vicinity from the slaughteries which ensures optimum quality of raw material.
The small sized solutions usually consists of grinder, boiler, press, decanter/tricanter, dryer, hammermill and cooler. FTG process solution ensure the optimum trade-off of size, quality on materials and energy effectiveness.
Grinding as a first step ensures that even bits of residue are passed on - and is important as the first barrier to fishing hooks and other elements that are not wanted in the further process.
The screw cooker is designed as a large slowly rotating screw conveyor with steam heated outer pipe and hollow steam heated flighting allowing heating of the raw material to about 90°C to secure complete coagulation.
Depending on layout coagulated material is then pressed through a screwpress for squeezing out liquids, and the press cake is dropped or conveyed directly into the drier.
The liquid from the press is directed to the tricanter, which in one single step is able to separate the liquid into solids, stickwater and fish oil.
Oil can be further treated in a polisher for optimum quality.
Evaporating of stickwater is optional but recommended to take out the last 6-7% protein that is water soluble and thus valuable as they provide a better quality of the meal.
The drier evaporates the water from the solids. The combination of gentle rotation and evaporations result in a fishmeal with approx. 10 % residual water.
Vapour from the driers is drawn out and treated in a seawater scrubber together with ventilation air and vapour from the other process equipment. (optional)
Warm and bony fish meal is conveyed to the hammer mill before cooling and transporting to meal silo as reservoir for bagging. Transport may be by means of cooling screw conveyors or pneumatic system.
Typical onboard fishmeal plants have a capacity range of between 60 to 250 tons of raw materials per day.
Mass and Energy Balance
All fishmeal plants are being calculated based on given numbers for rest raw material to be processed. This calculation are set up in a Mass and Energy Balance Scheme to specify dimensions on all equipment and piping.
After finalizing a M&E balance we produce a flowsheet and 3D drawing to optimize the tradeoff betwen size, quality in materials and cost.
Together with client or yard, we produce all necessarry drawings and plan all interfaces for easy assembly and use. Of course PLC system are included - and can be integrated into the majority of common PLC systems (for global control)