The production process of the whole wet fish meal production line can be divided into four parts

1. Fish meal production line

Raw fish or fish steak and leftovers, after magnetic separation equipment after iron into the hopper, and then by the screw conveyor constantly into the cooking machine. After the material is ripe, it enters the press directly. After being pressed by the double screw, the juice is pressed into the juice pool, and the cake is pressed into the dryer. After the protein water is concentrated, it is added to the dryer for drying.

2. Fish oil production line

The juice of the press liquid is initially precipitated and sent to the heating tank, which is heated to a certain temperature and then sent to the horizontal spiral centrifuge to separate the fish residue and fish liquid. The fish residue is returned to the dryer, and the fish liquid is sent to the vertical oil-water separator, where the fish oil is separated and reprocessed to get the finished fish oil.

3. Concentrated liquid production line

After the work of vertical oil-water separator, the fish protein water retains a variety of nutrients, such as soluble protein, various vitamins, inorganic salts and so on. However, the fish protein water with 90% -- 95% water content must be concentrated before it can be added to the dryer, and the protein content of fish meal can be increased to 2% -- 3%, and the fish meal yield can be increased to 20% -- 30%. The resulting fish meal is called "whole fish meal".

4, environmental protection system

During the whole process of wet whole fish meal production, it should work under sealed condition. The odor from the cooking machine, press, dryer, fish, hopper, tank and trough, etc. are all collected and sent to the odor removal tower for centralized treatment through the air inlet pipe. Part of the soluble odor is dissolved and absorbed by the cooling water and discharged into the sewage, while the other part of the insoluble odor is discharged from the top and sent to the boiler room for high-temperature combustion. Deodorizing back into the atmosphere, waste water after strict treatment to meet environmental standards after discharge, in order to protect the environment.

Process flow:

The material enters the fish cutting crusher through the storage bin. The fish cutting crusher can crush and refine the larger fish and fish head, and obtain the block size ≤5cm, so as to improve the processing efficiency of post-curing and sterilization. The machine is uniaxial structure, gear cutter adopts wear-resistant alloy steel 40Cr, rotary gear cutter and anvil grid section are hardened surface treatment, hard and wear-resistant. The frame is made of Q235 carbon steel, the shell is made of 304 stainless steel, and the upper cover is opened and closed by pneumatic control. Low noise, high crushing efficiency, automatic cleaning, closed machine, can effectively avoid environmental pollution.

The fish meat chopped by the fish cutter enters the cooking machine for cooking. The cooking machine is the key production equipment of fish meal processing. It is heated indirectly by steam or heat conduction oil to ensure that the raw fish is evenly cooked. Equipped with automatic control hopper, through automatic control of material level, ensure that the feeding port of the digester is always full of material, so as to ensure the cooking process is uniform and continuous; Through the outer jacket, spindle, spiral fin inside the steam heating form, to ensure that the raw fish cooked, cooked through, to avoid the use of steam direct injection heating produced by a large number of condensed water mixed with the material, and cause the loss of fish meal protein adverse phenomenon; The power adopts stepless speed regulating motor, through changing the spindle speed of the cooking machine, in order to meet the production process requirements of different seasons, different species and fish body size changes; The automatic drainage system is used to recover all the steam condensate to the boiler, thus reducing the energy loss. The two ends of the main shaft are automatically adjusted and compressed sealing device, which avoids water leakage or liquid leakage of the cooking machine and keeps the indoor health of the workshop; Equipped with steel structure base, do not need to provide concrete foundation, and can change the installation position, easy installation. The outer insulation and the upper observation cover are covered with stainless steel, which enhances the corrosion resistance, prolonging the service life of the equipment and makes the appearance beautiful. The cooking, degreasing, shaping, curing and processing of raw fish and aquatic products, blood, viscera and intestines in poultry slaughter.

After cooking, the fish is pressed into the press, and the excess water and fish oil are fully squeezed through the press. The remaining dried fish is dried into the dryer to prepare for the next step. This machine is a good conduction type continuous drying equipment. This machine heat transfer to the material through the heat transfer wall, part of the steam into the annular space between the shell and the inner wall of the cylinder, through the inner wall to heat the material, condensate water from the bottom trap port; Another part of steam into the spindle and coil, to heat the spindle and coil, condensate from the drain rotary joint outlet. With the rotation of the shaft, the material is fully stirred and mixed under the joint action of the wheel blade and coil, so that the material is in contact with the surface of the shaft and coil. The secondary steam is discharged from the maximum steam chamber of the shell through the air exhaust pipe, which maintains a weak vacuum degree, so that the waste steam will not leak out, but also avoid absorbing too much cold air. The material plate installed on the spindle is located between the heating coil, which can push the material along with the forward movement, and has the self-cleaning effect, can remove the covering layer on the shaft and cylinder wall, in order to maintain good heat transfer ability.

Features:

1. This machine adopts outer jacket and spindle coil or steam box through steam, increase the heating area, its special structure and working principle determines that it has high thermal efficiency, low energy consumption, easy operation and control, good operating environment and so on.

2. Exhaust hood and pipe are made of stainless steel to improve corrosion resistance and prolong service life.

3. Automatic water transmission system is used to recycle steam condensate water to the boiler to reduce energy consumption and save water.

Scope of application:

This machine is suitable for drying feather powder, fish meal, blood meal, meat and bone meal, kitchen waste and other high humidity materials after drying fish into the grinder for fine grinding.