Shuliy fish meal production line is a set of equipment specialized in converting fish scraps (such as fish head, fish bone, fish viscera, etc.) or fresh fish into high-protein fish meal and fish oil. Its capacity has 1-5t per day, 10-50t per day, 50-100t per day, 100-250t per day, and even bigger.

This fish meal processing plant includes the fish crusher, fish cooker, screw press, steam dryer, cooling screening machine, grinder machine, and packaging machine. During the screw press step, the fish oil is produced. If you want fish oil, a fish oil separator is required.

It is widely used in feed processing plants, aquaculture farms, animal protein recycling plants and other industries, and is characterized by high return on investment and strong environmental protection efficiency. Interested? Welcome to contact us for more information!

What is the fish meal?

Fishmeal is a brown powder rich in protein and nutrients, which is commonly used in the production of animal feeds, such as cat and dog food, rabbit food, and poultry feed. It is mainly made from some fish that are not suitable for human consumption, small fish, dead fish or fish processing residues (e.g., fish head, fish bones, viscera, etc.) after cutting, steaming, pressing, drying, and other processes.

Due to the high nutritional value and market demand, fish meal production has become a very promising business in recent years.

How to make fish meal with the fish meal production line?

The common fish meal processing procedure includes fish cutting→fish cooking→cooked fish squeezing→steam drying→fish powder cooling screening→fish meal grinding→fish meal packaging. During the fish squeezing, the fish oil is made. See if you need a fish oil separator.

Step one: fish crushing

This fish crusher is used to cut fish scraps, fresh fish, shrimp, and mealworms, etc. into small sizes of ≤5mm. If your raw materials are small in size, you can skip this step by transporting them directly to the fish cooker through the screw conveyor.

• Capacity: 500-1000kg/h
• Power: 5.5 kW
• Specification: 1200X600X1000mm(length, width and height)
• Weight: 300kg
• The machine shell is made of stainless steel and knives are made of 40Cr.
• The upper part is equipped with a collecting hopper, made of SUS304 stainless steel.

Step two: fish cooking

The fish cooker machine adopts the steam heating method, so it should match with a boiler for providing the steam source. The boiler can be bought or self-built by the customers themselves. This fish cooking step has two main functions for processing fish meal: cooked and sterilization.

• Cooking time: 20 minutes
• Cooking temperature: 150℃-160℃
• The inner cylinder is made of Q345 carbon steel with a thickness of 10mm.
• The outer cylinder is made of Q235 steel plate with 8mm wall thickness.
• It’s equipped with branded swivel joints and stainless steel hoses.
• One-piece bracket with added guardrail and climbing ladder is available.

Step three: cooked fish squeezing

The cooked fish pieces are then transported into the fish squeezing machine for pressing out the water and fish fat quickly. This screw press machine can squeeze out the juice products such as fish oil and water of the fish to the maximum extent, and discharge the finely divided fish meat and fish residue from the slag discharging outlet.

• Final products: crude and wet fish meal & extracted oil-water mixture
• Screw blade diameter is 18mm, spiral blade thickness is 12mm, material 16MnR.
• The outer cover and the bottom receiving tank are made of 304 stainless steel plate.
• Optional matched equipment: fish oil separator

Step four: fish powder drying

After pressing, the fish residues still have a certain amount of water content. Therefore, we should use the fish meal dryer machine for fast drying. This rotary dryer machine can dry the fish meal quickly during its rotation process with the heating source of boiler steam. This dryer machine has a fully enclosed structure and is equipped with a dust collector, which will not produce dust pollution.

• Drying method: steam drying
• The outer cylinder material is Q235 carbon steel material, thickness is matched with the whole fish meal production line capacity.
• The equipment is of outer jacketed structure.
• The thermal insulation material is alumina silicate, and the insulation board is SUS304 stainless steel.

Step five: fish meal screening and re-crushing

During the fish meal production line, after drying, the fishmeal should be screened by a drum screening machine to get the fish powder of even size. The drum screening machine can be changed with different screen meshes with different screening holes.

• Functions: cooling and screening, discharged in two levels
• Stainless steel mesh, size: 5mmX5mm
• The bracket is made of Q235B, and the main body is made of SUS304, δ=2mm.

After screening, the fine fish powder can be packed, and the fish powder that is not the required size(usually 3 mm) can be crushed again by a small crusher machine with a dust collector to ensure a non-pollution environment.

• Capacity: 600-800kg/h(9FQ40-28)
• Grinding size according to the national fishmeal standard
• Made of T12 tool steel with good abrasion resistance

Step six: fish meal packaging

The final fishmeal can be bagged manually or packaged into individual small packages by an automatic packaging machine. We can provide the special packaging machine for highly efficient quantitative packing of fish meal products with the customized logo, letters, brands, pictures and so on.

• Model: TZ-DGS-50F
• Application materials: Powder, mixed material
• Filling range: 5-50kg
• Precision: ±0.2-0.5%
• Packing speed: 3- 8 bags/min
• Air pressure/gas consumption: 0.4- 0.6MPa/ 1 m3/h
• Power: 380V/2.6KW
• Dimension: 3000×1500×2500 mm

Main advantages of Shuliy fish meal production line

• Various production capacities
  • Our fish meal machine has an output of 1-5 tons per day, 10-50 tons per day, 50-100 tons per day or even more. We can customize different fishmeal production lines based on the actual requirements of our customers.
• Quality SUS 304 stainless steel materials
  • All equipment in Shuliy fish meal plant adopts SUS 304 stainless steel materials, which are corrosion-resistant and durable. Thus, the machine can be used for a long time.

• High-quality fish meal and fish oil for high revenue
  • The use of Shuliy fish meal processing plant ensures that the protein content of fishmeal is up to 60% or more, containing high protein, fewer impurities, is easy to absorb, and higher market price.
  • The extracted pure fish oil can be used in the field of cosmetics, pharmaceuticals, and health care products, realizing the maximum value of raw materials and increasing the profitability of customers.
• Environmental protection treatment program
  • We provide cyclone(dust collector), deodorizing equipment(spray tower, condenser) to help customers easily respond to the environmental review and comply with local emission standards.
• Customization and service support
  • Shuliy can provide one-stop customized solutions for fish meal production lines according to customers’ raw materials, sites, budgets, etc.
  • Alos, we provide installation and commissioning, technical training and remote after-sales service to ensure the long-term and stable operation of the equipment.

Applications of fish meal production line

1. To make livestock feed. Fishmeal can be used for the processing of livestock feed. It is mainly used for the production of feed for animals such as pigs, chickens, and cattle. The feed for these animals needs to contain high-quality protein, especially for young pigs and chickens. Because young animals are in a period of vigorous growth, the demand for protein and the proportion of amino acids in proteins are relatively high. Fish meal is an animal protein in which the proportion of amino acids is closest to the amino acids required by animals.
2. Feed for aquatic animals. Fish meal powder is used as the main raw material for feed proteins such as fish, crabs, and shrimps in aquatic animals. The ratio of amino acids required for fish meal and aquatic animals is the closest. Adding fishmeal can ensure that aquatic animals grow faster.
3. Used to make feed for fur animals. Fish powder can be used to make feed for some fur animals such as foxes and crickets. Fur animals are mostly carnivorous, and the demand for protein is large in growth. High-quality fish meal as a protein raw material is the first choice for these animal feed ingredients.

Test operation of the fish meal machine plant

Fish meal plant can dry the powder and granular materials with special requirements . In order to achieve a good condition , the test operation experiment of the fishmeal machine is required.

The specific requirements are as follows:

1. Start the main motor and ensure the main roller steering correctly.
2. Observe whether the rotation of the main roller and the transmission components are flexible , observe whether the steam inlet and outlet are connected to the drying equipment , and whether the pressure gauge is within the working pressure range.
3. Start the motor , and the main roller operates smoothly . After the temperature rises , adjust the motor speed and the uniform film on the roller to control the material water content.
4. Start the motor , output the dry finished drying material , and adjust the motor speed according to the finished drying quantity.

After completing the above trial operation steps of the fish meal plant , if there is no abnormal phenomenon , you can start the formal use.

Matched equipment used in fish meal production line

The innovation and advanced performance of fish meal plant

1. We use hot air extraction instead of the original indirect steam as the dry heat source, and the heating efficiency will be significantly improved. It is expected that the energy consumption will save more than 30% compared to the original process equipment.
2. The low temperature rapid short-time drying technology can effectively protect the amino acids in the fish meal from being destroyed. This reduce the loss rate of true protein in the fish meal from the original 15-30% to less than 5%, reaching or exceeding the same fish meal standard.  
3. Our design is kept under the state of closed negative pressure, with continuous automatic production, high efficiency, low energy consumption, no pollution to the environment.  

500kg/h fish meal making machine put into production in Libya

Fishmeal has a high protein content and is mainly used in animal feed. Because of its extremely high economic value, investors in many countries have started to establish fish meal processing plants to produce a variety of high-quality fishmeal on a large scale.

Recently, a Libyan customer placed an order with us. His factory is located by the sea and the main raw material is white fish.