Method and Device for Processing Fish Meal for Direct Human Consumption

摘要

A method for producing fish meal for direct human consumption requires an integral processor device comprising a horizontal cylindrical stator having a steam jacket and contains a rotor formed by a central tubular shaft through which steam enters, said rotor being divided into two heating zones, a first zone in which the fish meal is cooked and a second zone in which the dehydration operation is performed. The cooking, flavouring and dehydrating process is partially controlled using the steam pressure in the rotor and the gate valve of the product discharge chamber. The operation allows the evaporation capacity and the percentage of water in the product to be adjusted within the required limits. The device also comprises a gearbox and an electric motor. Flavouring is performed during the entire fish meal production process and the ingredients are fed into the device through metering units located on the upper part of same.

主权项

1. A method for producing fish meal for direct human consumption of the type comprising the steps of:
a. unloading the raw material (fish) from various vessels into a factory by means of a vacuum pumping device and water at 0° C., such that the fish is driven along with water through a high-density polyethylene pipe, b. receiving the raw material (fish) in a freezing plant of the factory, until reaching a static dewatering unit, the function of which is to separate the fish from the water used during unloading or pumping, subsequently transferring the raw material into 0.5 m3 plastic containers with covers referred to as Dinos so that it can be conveyed to the processing bay for processing same for human consumption by means of a hoist for subsequently storing same in a tank having an inclined bottom, characterized in that said method includes the steps of: c. cooking, flavouring and dehydrating the raw material in a single cooking, flavouring and dehydrating device, by means of transferring said raw material from the storage tank having a capacity of 10 m3 to the cooking-flavouring-dehydrating device by means of screw conveyors, wherein:
flavouring is performed by means of adding flavouring ingredients into the device along with the feeding of the raw material,cooking of the fish is performed in a temperature range between 95° C. to 100° C., using saturated steam at a pressure of 400 kPa (4 bar) to 600 kPa (6 bar), which is distributed from the central steam shaft towards the discs (17) which contact the fish load,dehydrating is performed in concentric tubes at a pressure of 600 kPa, where heat is transferred through said tubes, such that fish meal with 8% moisture at a temperature of 60° C. is obtained, the residence time in the device being 70 minutes; and d. cooling the fish meal from 60° to 30° C. in a rotary cooler.