Notes

Floating fish feed pellet extruder technology
In the manufacturing of extruded feed, the primary equipment is a screw fish feed pellet extruder. The product is fed right into the fish feed pellet extruder, as well as the screw screw pushes the material to form an axial flow.

At the same time, due to the mechanical rubbing between the screw as well as the material, the product and also the barrel, and the product inside the material, the material is strongly squeezed, mixed, and sheared, and consequently, the material is more improved and co-opted.

As the stress gradually enhances, the temperature increases appropriately. When the paste material is expelled from the die opening, under the action of a solid pressure distinction, the material is puffed by floating fish feed making machine, dried out as well as cooled. The puffed product is loose, porous, crisp, and also has good palatability and also taste.

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

The fish feed pellet extruder puffing process is a process that incorporates different operations such as mixing, working, shearing, heating, as well as cooling. The following is a particular evaluation from the facets of thickness control, automatic control and energy saving as well as consumption reduction.

1. Density control technology

In the extrusion process of fish feed pellet extruder, there are numerous aspects that affect the density of feed, such as refining modern technology, fish feed pellet extruder equipment, processing parameters, process control, feed raw materials, formula and so forth.

pellet mill in Saint Kitts and Nevis is possible to regulate the item thickness by changing the raw product or formula, yet it has little application value; by altering the screw configuration, the thickness control of the extruded feed item can be understood, but the operation is inconvenient. Density control can additionally be accomplished by changing the operating criteria.

In addition, in the fish feed pellet extruder processing of water feed, in order to fulfill the feeding requirements of water pets, the ups as well as downs of marine feed need to be managed, and also the ups and downs of feed are very closely pertaining to density, so density control is applied in the manufacturing of aquatic extruded feed.

Technology is specifically crucial. Currently, controlling the thickness of extruded products is primarily attained by managing the pressure and temperature. The primary methods are as follows:

( 1 )Open up a pressure alleviation hole on the extruding tooth cavity, as well as connect the stress alleviation hole when generating floating feed, so regarding fulfill the demands of high temperature and high pressure for handling floating feed.

Open the pressure alleviation opening when feeding, to ensure that when the product gets to the stress alleviation opening, the pressure in the sleeve is partly launched, and at the same time, some water vapor is likewise discharged from the stress relief opening.


These products are extruded by fish feed pellet extruder to the end of the extruding cavity and afterwards compressed to get a hefty feed with high mass density. This pressure relief opening can also be used to leave, to make sure that the material sheds part of the water vapor during the forced motion.

This fish feed pellet extruder process technique understands the control of the density of the extruded product by controlling the stress in the extruding tooth cavity, and the output will certainly not be affected since the feeding quantity does not need to be reduced.

( 2) A stress regulating gadget is added in the floating fish feed extruder machine (pressurization prior to the die). The pressure guideline of the fish feed pellet extruder is to mount a shut-off shutoff between the extrusion dental caries and the discharge theme to adjust the pressure difference between the extrusion dental caries and also the beyond the extrusion tooth cavity.

( 2 )Stress cutting technology (post-mold stress). wood pellet machine in Kazakhstan -new kind of thickness control system was established for aquafeed. This density control system of fish feed pellet extruder adopts pressurized reducing technology to preserve a particular positive pressure in the cutting chamber.

When the material enters the cutting chamber from the puffing chamber, since the boiling point of water increases with the stress, the flash evaporation can be lowered to control the degree of expansion of the product, and also the starch molecules are instantaneously solidified in the reducing chamber, and the material no more gets in the normal pressure from the cutting chamber.

The favorable stress of the reducing chamber can be understood by inputting pressed air with an air pump, and the fan can be switched off when discharging.

This fish feed pellet extruder process method stays clear of managing other factors that impact the degree of growth, therefore lowering the demand for manual procedure, as well as at the same time, the controllability is stronger than other approaches.

Presently, this new fish feed pellet extruder technology has not been used in China, however this modern technology transcends to the exhaust method in regards to density control of extruded products and procedure and usage, and also is a brand-new direction for the growth of extruded modern technology.

( 4) Regulating the opening rate of the template. By altering the opening price of the discharge design template, the stress distinction before and after the template can be altered, so as to achieve the function of controlling the density of the product. The hole is blocked.

2. Automatic control of fish feed extrusion process

The automated control of the fish feed pellet extruder extrusion process refers to the fast and also exact control of the process criteria by gearing up the extrusion equipment with a computer-aided control system.

The application of automatic control innovation in the fish feed pellet extruder puffing process can not only enhance work performance, yet likewise enhance product high quality stability. Versions of automatic control in the house as well as abroad

There are studies on all sides. The automatic control modern technology of the fish feed pellet extruder puffing process has made great progression, and a visualization control system of the puffing process has actually been developed. The extruding system of fish feed pellet extruder based upon FIX commercial setup software application recognizes the visual control of the extruding process

The sensing unit can be utilized to conduct on-site detection and feedback on the operating criteria of the fish feed pellet extruder, automatically change the pertinent functioning parameters of the floating fish feed pellet machine, as well as realize numerous pre-programmed by the operator.

Working parameters, with formula storage space, record printing, alarm system, dynamic display screen and also recording of functioning parameters. Foreign computer automatic control innovation has actually currently been applied in the field of feed handling

In the entire fish feed pellet extruder process, it has actually been developed from a solitary computer system control system to an innovative automated control system, which can display shade pictures in the central control area, computer program control and also interaction network for floating fish feed making machine operation, it can complete all production treatments without unmanned operation.

As a whole, the automatic control of puffing in feed processing abroad has been creating towards the instructions of incorporating with product top quality.

While the intro of computer systems in my country is generally to resolve the problem of manufacturing automation, just concentrating on the monitoring of equipment operation in the manufacturing process and the control of stand-alone equipment. It has actually not played its due function in boosting product top quality and other aspects.

3. Power saving in extrusion process.

The problem of power conserving and consumption reduction is the study focus in the fish feed pellet extruder extrusion process.

At present, it is mostly via the research of low power intake handling technology and the influence of major process specifications on energy consumption, as well as the establishment of matching mathematical designs to attain the purpose of energy conserving as well as usage reduction.

In order to decrease the energy usage in the fish feed pellet extruder puffing process, some domestic feed makers mainly take measures from the process. For example, in the manufacturing process of nursing pig feed, the corn basic material used is not full puffed product, however part of the puffed product as well as part of the traditional material.

In the later fish feed pellet extruder granulation process, processes such as growth as well as low temperature level granulation are made use of to ensure that the energy consumption each item is minimized.

From the above analysis, it can be seen that it is still a traffic jam trouble just how the process parameter study in the fish feed pellet extruder puffing process can be personified in lowering power intake as well as can be understood in real production.

4. Application of extrusion in floating fish feed processing.

Over the last few years, the application of fish feed pellet extruder extrusion modern technology to feed manufacturing is an epoch-making leap in feed manufacturing technology. The main advantages of extruded granulation:

( 1 )The processing temperature level is high as well as the moisture content is huge, and the product can be fully matured and broken down. The pellets are of top quality as well as the feed titer is high;
( 2 )The flexible variety of pellet density is huge, which can adjust to the needs of different feeding items and also various feeding settings.


( 1) Puffed suckling pig feed

The important indicators of nursing pig feed are hygiene and maturation to prevent suckling pigs from looseness of the bowels. The raw materials are treated with heat as well as high pressure, on the one hand, it eliminates pathogenic germs, on the other hand, the starch product is fully cooked, and also the soybean protein is denatured and cleansed, so that the material is very easy to digest and soak up. Gelatinized starch can boost the production of lactic acid in animals and also enhance the anti-bacterial capacity of pets.

( 2) Extruded marine feed
The aquatic feedl is extruded as well as granulated by fish feed pellet extruder, which improves the top quality of the product from all elements.

① Enhanced feed titer. Extrusion ripens the starch, which is important for fish as raw starch is tough to absorb. The starch is cooked, the cohesiveness of the material is boosted, and also the creating impact is excellent. On the facility of ensuring the high quality of pellets, the formula can be gotten used to reduce expenses.

② The floating time of pellets in water is regulated by the density of pellets, as well as the density is identified by the degree of puffing by fish feed pellet extruder.

Therefore, by changing the formula, readjusting the range and content of starch and binder, and changing the process parameters, that is, adjusting the wetness, pressure, temperature level, and so on, extruded pellets with different thickness can be generated.

( 3) Puffed chicken feed

The formula of chicken feed includes high starch product and 15% -20% protein product at the same time. For this percentage, despite the completely dry floating pellet machine or the wet floating pellet machine, the technical performance is better.

Experiments have revealed that puffing can improve the digestion and also absorption price of feed for hens. Extruded chicken feed, because of its tiny mass thickness, can minimize chicken feed intake, avoid excessive weight, as well as improve egg manufacturing.

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

Ruminants such as cattle and sheep can convert non-protein nitrogen (such as urea) right into pet protein. The trick to including urea to feed is exactly how to manage the enhancement quantity, uniform feed intake as well as urea disintegration rate. Urea-expanded corn resolves these problems most efficiently.

The urea, corn flour as well as additives are mixed in a certain proportion and after that enter the floating pellet machine, the corn flour is expanded, and the gelatinized starch as well as urea develop a layer framework. Urease preventions hinder the task of urease. It prevents the launch price of ammonia after urea decay from 2 aspects, and avoids ammonia poisoning brought on by excess ammonia.

( 5) Rice bran preservation therapy.

Fresh rice bran has extremely energetic lipolytic enzymes, which can rapidly decompose the oil contained in rice bran into cost-free lipids.

Fat and rancidity, so the storage efficiency of fresh rice bran is incredibly inadequate. The rancid and also ruined rice bran not just reduces the oil yield, yet also impacts the growth and also development of livestock and also poultry if fed as feed.

For that reason, fresh rice bran must be maintained fresh in time. Extrusion, heat, high pressure as well as high shear can suspend lipase and also prevent rancidity and also wear and tear. Extrusion has come to be a new pretreatment process in rice bran oil production.

( 6) Detoxing of oilseed dish healthy protein.

Along with soybean cake (meal), the cake (dish) acquired from rapeseed, cottonseed, sunflower seed, castor as well as various other oilseeds additionally includes a certain quantity of healthy protein, which is a superb resource of feed protein. Nevertheless, different oil cakes (consisting of soybean meal) can not be directly utilized to develop feed, because they all include a particular amount of anti-nutritional variables or other dangerous components.

Oil cake (meal) must be detoxed prior to it can be utilized. Cleansing techniques include chemical as well as physical techniques. Oilseed cake (dish) extrusion detoxification is a modern technology put on oil cake (dish) treatment by extrusion innovation.

( 7) Feather puffing handling.

Due to the presence of disulfide bonds and hydrogen bonds in between plume polypeptide chains, the framework of plume healthy protein is particularly secure, and also pet gastrointestinal enzymes are generally not able to absorb and break down, so the plume extrusion innovation has been created.

After the feather is extruded and also puffed, its disulfide bond is broken, the molecular structure is damaged, as well as the digestion enzyme is simple to absorb as well as decompose, and the digestibility is improved. The digestibility is related to the degree of deterioration and extrusion temperature level.

When the floating pellet machine extrusion temperature is high, the digestibility of the puffed feather item increases, yet the amino acid material of the item lowers similarly, as well as the healthy protein top quality of the product reduces.

Feather meal has high protein material, however the amino acid is not stabilized sufficient. In order to resolve this problem, chicken viscera, chicken blood and plumes can be combined and processed right into digestive plume dish.


Fish feed pellet extruder extruding innovation is a feed handling technology established at the end of the 20th century. Pressure cutting has an excellent impact on regulating the density of extruded products, offering a brand-new method for handling high-demand aquafeeds.

The use of waste vapor as well as waste warm for conditioning makes the machine much more environmentally friendly as well as adapts to the pattern of the times. Extrusion modern technology of fish feed pellet extruder is widely made use of in aquatic, swine and ruminant feeds, which has a substantial impact on changing feed quality and also reducing expenses.

With the growth of fish feed pellet extruder extruding modern technology, even more comprehensive research is required on just how to properly manage the expansiveness and extruding high quality of extruded feed, and also improve the automation of extruding.

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