Fish meal production line

Fish meal is a kind of nutritious materials that can be further processed for making animal feed, such as cat and dog food, rabbit food and all kinds of poultry feed. Due to its high protein and nutritional value, it is very popular in the animal feed market, therefore, fishmeal making has become a promising business in recent years. To make fish powder, it is necessary to adopt a special processing craft and a series of fish meal production equipment as support. The whole Shuliy fish meal production line mainly includes the steps of fish cutting, fish cooking, fish squeezing, fish powder drying and screening, and fish meal packaging.

What is the fish meal?

Fishmeal is a kind of commercial product that is processed by the fish after removing the edible parts for human consumption or lacking market value. Fishmeal is a kind of brown powder. Specifically, it is a product made by crushing, squeezing, drying, and degreasing the above-mentioned various types of dead fish, small fish and fish processed scraps, shrimp, crab, mealworm and so on. The purpose of fishmeal is that it is rich in protein and can be added to the animal feed.

Fish meal making

Nutritional characteristics of fishmeal in the fishmeal making machine

1.  Fishmeal does not contain difficult substances such as cellulose, which is difficult to digest. The fish powder has a high effective energy value, so it is easy to formulate high-energy animal feed using fishmeal as raw material.

2.  The fish powder is rich in B vitamins, of which vitamin B12 and vitamin B2 are very high. It also contains fat-soluble vitamins such as vitamins A, D, and vitamin E.

3.  Fishmeal is a good source of minerals, calcium, phosphorus content is high, and the proportion is appropriate. In addition, the selenium content of fish powder is also very high, up to 2mg/kg. In addition, the content of iodine, zinc, iron, and selenium in the fish meal is also high and contains an appropriate amount of arsenic.

4.  The fish meal contains an unknown factor that promotes growth. Although this substance has not been purified into a compound, it has been approved to stimulate the growth and development of animals.

How to make fish meals by the fishmeal production line?

The common fish meal processing procedure is big fish cutting——fishing cooking——cooked fish squeezing——fish powder drying and screening——fish meal packaging and fish oil processing.

Processing steps of the fish meal production line

Step one: fish crushing

If your raw materials are just the small size of fish, shrimp, and mealworm, you may pass this step for transporting them into the fish cooking tank by a screw conveyor. However, if your fish with big size, you should use an automatic fish cutting machine to cut them into small pieces with the size of less or equal to 5 mm first.

Step two: fish cooking

The crushed fish pieces will be delivered into the fish cooker machine for cooking for about 20 minutes. The fish cooker adopts the steam heating method so that it should match with a boiler for providing the steam source. The cooking temperature in the fish cooking machine is about 150℃-160℃. 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.

Step three: cooked fish squeezing

The cooked fish pieces then are transported into the fish squeezing machine for pressing out the water and fish fat quickly. This screw juicer 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. In fact, these processed fish residue and finely fish meat is the crude and wet fish meal, which should be further processed for making fishmeal. As for the extracted oil-water mixture, they can be further processed to making fish oil and fish protein production.

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 equipped with a dust collector so that there will be no dust pollution occurred.

Step five: fish meal screening and re-crushing

After drying, the fishmeal should be screened by a drum screening machine for getting the fish powder with even size. The drum screening machine can be changed with different screen meshes with different screening holes. After screening, the fine fish powder can be packed, and the fish powder which is not the required size(usually 3 mm) can be crushed again by a small crusher machine with a dust collector to ensure the non-pollution environment. Then, all the fish meal can be packed.

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 high-efficient quantitative packing of fish meal products with the customized logo, letters, brands, pictures and so on.

Main advantages of this fish meal production line

1. The whole fish meal production line is very productive, 1-5 tons per day, 10-50 tons per day, 50-100 tons per day or even more final fish meal can be made. We can customize different fishmeal production lines based on the actual requirements of our customers.
2. All the machines in this fish meal plant are made of high-quality SUS 304 stainless steel which is corrosion resistant and durable so that can make sure these fish meal processing machines have a long time using.
3. Each of the equipment in this fish powder processing line can be different models and with different working capacities. Besides, as the professional fishmeal machine manufacturer, we can provide a series of supporting equipment and the spare parts for mass production of fish powder, like electric control cabinet, screw conveyor, cyclone(dust collector), the deodorizing equipment(spray tower, condenser), fish oil concentrator, stainless steel storage tank, boiler, air pump and so on.

Applications of the fishmeal from the fishmeal 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.

Main craft for processing fishmeal, fish oil, and fish soluble paste

Test operation of the fish meal machine equipment

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.

How to transport the materials in the fish meal production line？

Our fish meal processing plant has special screw conveyor , with its simple structure and low cost . It is a conveyer commonly used in industry . The fishmeal conveyor is reliable , easy to maintain , and occupies a small area . Therefore , it can increase the production efficiency of fish powder and save a lot of labor cost.

How to deal with the waste gas produced in the fishmeal production plant？

In industrial production , it is inevitable to produce some waste gas, smoke and industrial dust . If these pollutants are discharged directly into the atmosphere , they will not only pollute the air , but also do harm to people’s health.

In order to prevent the above problems , we equipped  a special air purification unit in fish meal processing plant , which is spray tower . The spray tower is also known as spray deodorant equipment , spray purification tower or spray scrubber . It can effectively collect dust and harmful gases through multiple filtrates.  The innovative and advanced performance of fish meal equipment

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.  

Fish meal machine working video

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.