Notes

Floating fish feed pellet extruder innovation
In the manufacturing of extruded feed, the main equipment is a screw fish feed pellet extruder. The material is fed right into the fish feed pellet extruder, and the screw screw presses the material to develop an axial flow.

At the same time, as a result of the mechanical rubbing in between the screw and the material, the product and the barrel, as well as the material inside the material, the product is highly pressed, mixed, as well as sheared, and also consequently, the material is additional refined and also homogenized.

As the pressure progressively enhances, the temperature level raises accordingly. When the paste material is ejected from the die hole, under the activity of a solid pressure distinction, the product is puffed by floating fish feed making machine, dehydrated as well as cooled down. The puffed item hangs, porous, crisp, and also has excellent palatability as well as flavor.

The fish feed pellet extruder puffing modern technology appear the typical handling technology, makes the physical residential properties of the feed change qualitatively, greatly promotes the growth of the feed handling market and the breeding industry, and also is a major development in the feed industry.

The fish feed pellet extruder puffing process is a process that integrates numerous operations such as blending, kneading, shearing, home heating, as well as cooling. The following is a particular evaluation from the facets of thickness control, automatic control as well as power conserving as well as usage decrease.

1. Thickness control technology

In the extrusion process of fish feed pellet extruder, there are many factors that impact the density of feed, such as processing modern technology, fish feed pellet extruder equipment, refining parameters, process control, feed basic materials, formula and more.

It is possible to manage the item thickness by altering the raw product or formula, but it has little application worth; by changing the screw arrangement, the density control of the extruded feed item can be recognized, but the operation is troublesome. Thickness control can additionally be attained by readjusting the operating criteria.

Furthermore, in the fish feed pellet extruder processing of marine feed, in order to fulfill the feeding needs of marine animals, the ups as well as downs of water feed ought to be controlled, as well as the ups as well as downs of feed are closely pertaining to thickness, so thickness control is applied in the manufacturing of marine extruded feed.

Modern technology is specifically important. Presently, managing the thickness of extruded items is generally achieved by regulating the stress as well as temperature. The major techniques are as complies with:

( 1 )Open up a stress alleviation hole on the extruding cavity, as well as connect the pressure alleviation hole when creating floating feed, so regarding fulfill the requirements of high temperature as well as high pressure for processing floating feed.

Open up the pressure relief hole when feeding, so that when the product gets to the pressure relief hole, the pressure in the sleeve is partially released, and at the same time, some water vapor is likewise discharged from the stress relief hole.


These materials are extruded by fish feed pellet extruder to the end of the extruding cavity and afterwards compacted to obtain a hefty feed with high bulk thickness. This pressure alleviation opening can additionally be made use of to evacuate, to make sure that the product sheds part of the water vapor throughout the forced movement.

This fish feed pellet extruder process method recognizes the control of the density of the extruded product by controlling the pressure in the extruding tooth cavity, and the outcome will certainly not be influenced since the feeding amount does not require to be decreased.

( 2) A pressure managing device is included the floating fish feed extruder machine (pressurization before the die). The stress law of the fish feed pellet extruder is to set up a shut-off valve in between the extrusion cavity and also the discharge theme to change the stress difference in between the extrusion tooth cavity and the beyond the extrusion tooth cavity.

( 2 )Stress cutting technology (post-mold stress). A new sort of thickness control system was created for aquafeed. This density control system of fish feed pellet extruder takes on pressurized reducing modern technology to preserve a specific positive pressure in the cutting chamber.

When the material goes into the cutting chamber from the puffing chamber, considering that the boiling point of water raises with the pressure, the flash dissipation can be minimized to control the degree of development of the material, as well as the starch molecules are promptly strengthened in the reducing chamber, as well as the material no longer enters the typical stress from the cutting chamber.

The positive stress of the reducing chamber can be understood by inputting compressed air with an air pump, and also the fan can be turned off when releasing.

This fish feed pellet extruder process technique prevents regulating various other elements that impact the degree of expansion, consequently minimizing the demand for hands-on operation, as well as at the same time, the controllability is more powerful than various other approaches.

Today, this new fish feed pellet extruder technology has actually not been applied in China, however this technology transcends to the exhaust technique in regards to density control of extruded products and procedure as well as use, and is a brand-new instructions for the growth of extruded technology.

( 4) Regulating the opening price of the layout. By transforming the opening price of the discharge theme, the pressure distinction before as well as after the template can be transformed, so regarding attain the purpose of regulating the density of the product. The hole is obstructed.

2. Automatic control of fish feed extrusion process

The automatic control of the fish feed pellet extruder extrusion process describes the quick as well as specific control of the process specifications by furnishing the extrusion equipment with a computer-aided control system.

The application of automatic control modern technology in the fish feed pellet extruder puffing process can not only improve work performance, but likewise enhance item top quality stability. Models of automated control at home as well as abroad

There are researches on all sides. The automatic control technology of the fish feed pellet extruder puffing process has made excellent development, as well as a visualization control system of the puffing process has been established. The extruding system of fish feed pellet extruder based upon repair industrial setup software application realizes the aesthetic control of the extruding process

The sensor can be used to perform on-site detection and also comments on the operating specifications of the fish feed pellet extruder, immediately change the relevant working specifications of the floating fish feed pellet machine, as well as realize different preset by the operator.

Working criteria, with formula storage, report printing, alarm system, dynamic screen and also recording of working criteria. Foreign computer automated control modern technology has already been applied in the field of feed processing

In the whole fish feed pellet extruder process, it has been created from a single computer control system to an innovative automatic control system, which can display color images in the main control room, computer system program control as well as communication network for floating fish feed making machine operation, it can finish all manufacturing procedures without unmanned procedure.

Generally, the automatic control of puffing in feed handling abroad has actually been creating towards the direction of incorporating with product quality.

While the introduction of computer systems in my nation is mostly to resolve the problem of production automation, only focusing on the monitoring of equipment procedure in the manufacturing process and the control of stand-alone equipment. It has not played its due duty in boosting item top quality and also other elements.

3. Power saving in extrusion process.

The issue of power saving as well as intake decrease is the research emphasis in the fish feed pellet extruder extrusion process.

At present, it is mainly through the research of low power consumption handling innovation and also the influence of main process parameters on energy consumption, and the establishment of equivalent mathematical versions to attain the function of energy saving and consumption reduction.


In order to lower the power intake in the fish feed pellet extruder puffing process, some residential feed producers mainly take measures from the process. For example, in the production process of suckling pig feed, the corn raw material made use of is not full puffed material, but part of the puffed material and also part of the traditional product.

In the later fish feed pellet extruder granulation process, processes such as development and also reduced temperature granulation are made use of to make certain that the power usage per unit item is minimized.

From the above analysis, it can be seen that it is still a bottleneck trouble just how the process parameter study in the fish feed pellet extruder puffing process can be personified in lowering energy intake and also can be understood in actual production.

4. Application of extrusion in floating fish feed handling.

Over the last few years, the application of fish feed pellet extruder extrusion innovation to feed production is an epoch-making jump in feed manufacturing innovation. The major advantages of extruded granulation:

( 1 )The processing temperature level is high and also the dampness material is big, and the material can be completely grown as well as broken down. The pellets are of top quality as well as the feed titer is high;
( 2 )The adjustable variety of pellet thickness is huge, which can adapt to the requirements of different feeding objects and different feeding environments.

( 1) Puffed suckling pig feed

The vital indications of nursing pig feed are hygiene and also growth to avoid suckling pigs from looseness of the bowels. The raw products are treated with heat and high pressure, on the one hand, it eliminates pathogenic germs, on the other hand, the starch product is fully cooked, as well as the soybean healthy protein is denatured and cleansed, to ensure that the product is easy to digest and also absorb. Gelatinized starch can promote the production of lactic acid in pets and also improve the anti-bacterial capacity of animals.

( 2) Extruded water feed
The water feedl is extruded and also granulated by fish feed pellet extruder, which boosts the top quality of the product from all aspects.

① Enhanced feed titer. Extrusion ripens the starch, which is essential for fish as raw starch is challenging to absorb. The starch is prepared, the cohesiveness of the product is boosted, and also the forming impact is great. On the premise of guaranteeing the high quality of pellets, the formula can be adapted to reduce costs.

② The floating time of pellets in water is controlled by the thickness of pellets, and also the density is identified by the degree of puffing by fish feed pellet extruder.

For that reason, by changing the formula, changing the range and content of starch and also binder, and also readjusting the process specifications, that is, adjusting the moisture, pressure, temperature, etc, extruded pellets with various thickness can be created.

( 3) Puffed chicken feed

The formula of chicken feed has high starch material as well as 15% -20% healthy protein product at the same time. For this percentage, regardless of the completely dry floating pellet machine or the damp floating pellet machine, the technical efficiency is much better.

Experiments have actually revealed that puffing can enhance the digestion as well as absorption price of feed for hens. Extruded chicken feed, due to its small mass density, can lower chicken feed intake, avoid weight problems, and enhance egg manufacturing.

( 4) Puffed livestock feed (urea puffed corn).

Ruminants such as cattle as well as lamb can transform non-protein nitrogen (such as urea) right into pet healthy protein. The trick to including urea to feed is exactly how to control the addition quantity, consistent feed consumption and also urea decay price. Urea-expanded corn solves these troubles most properly.

The urea, corn flour and also ingredients are mixed in a particular percentage and afterwards enter the floating pellet machine, the corn flour is broadened, and the gelatinized starch as well as urea create a coating framework. Urease preventions prevent the task of urease. It inhibits the launch rate of ammonia after urea decomposition from two elements, and prevents ammonia poisoning triggered by excess ammonia.

( 5) Rice bran preservation therapy.

Fresh rice bran includes really energetic lipolytic enzymes, which can rapidly break down the oil contained in rice bran right into totally free lipids.

Fatty acid and rancidity, so the storage efficiency of fresh rice bran is incredibly poor. The rancid and ruined rice bran not only minimizes the oil return, however also impacts the development as well as development of animals and poultry if fed as feed.

For that reason, fresh rice bran have to be kept fresh in time. Extrusion, high temperature, high pressure and high shear can suspend lipase and also stop rancidity as well as degeneration. Extrusion has actually come to be a new pretreatment process in rice bran oil production.

( 6) Cleansing of oilseed meal healthy protein.

Along with soybean cake (dish), the cake (meal) acquired from rapeseed, cottonseed, sunflower seed, castor and various other oilseeds likewise contains a certain quantity of protein, which is an outstanding resource of feed healthy protein. Nevertheless, different oil cakes (consisting of soybean dish) can not be directly utilized to create feed, due to the fact that they all include a particular amount of anti-nutritional aspects or other damaging parts.

Oil cake (meal) have to be detoxed before it can be used. Detoxing methods include chemical as well as physical methods. Oilseed cake (meal) extrusion detoxing is a contemporary innovation applied to oil cake (dish) therapy by extrusion technology.

( 7) Plume puffing processing.

Due to the presence of disulfide bonds and hydrogen bonds in between feather polypeptide chains, the framework of plume protein is particularly secure, as well as pet digestive enzymes are primarily incapable to absorb and disintegrate, so the feather extrusion innovation has actually been developed.

After the plume is extruded and also puffed, its disulfide bond is broken, the molecular framework is damaged, and the digestion enzyme is simple to absorb and disintegrate, as well as the digestibility is improved. feed pellet machine in Tonga is connected to the degree of deterioration as well as extrusion temperature level.

When the floating pellet machine extrusion temperature level is high, the digestibility of the puffed feather item rises, but the amino acid web content of the product decreases likewise, and the healthy protein high quality of the item reduces.

Plume meal has high protein web content, but the amino acid is not balanced enough. In order to solve this problem, hen viscera, chicken blood and plumes can be mixed and also processed into intestinal tract plume meal.


Fish feed pellet extruder extruding modern technology is a feed handling technology developed at the end of the 20th century. Stress cutting has a great result on regulating the density of extruded items, supplying a new technique for handling high-demand aquafeeds.

Using waste steam as well as waste heat for conditioning makes the machine more eco-friendly as well as adapts to the pattern of the moments. Extrusion modern technology of fish feed pellet extruder is extensively used in marine, swine and also ruminant feeds, which has a substantial impact on altering feed top quality as well as minimizing costs.

With the advancement of fish feed pellet extruder extruding innovation, more in-depth research study is required on exactly how to properly regulate the expansiveness and extruding quality of extruded feed, and boost the automation of extruding.

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