In the production of extruded feed, the major tools is a screw fish feed pellet extruder. The material is fed into the fish feed pellet extruder, and the screw screw presses the product to create an axial circulation.
At the same time, because of the mechanical rubbing between the screw and the product, the material and also the barrel, and also the material inside the material, the product is highly pressed, stirred, and also sheared, and also therefore, the product is more refined and homogenized.
As the pressure gradually boosts, the temperature increases as necessary. When the paste material is ejected from the die opening, under the activity of a solid stress distinction, the product is blown by floating fish feed making device, dehydrated and also cooled down. The puffed product is loose, permeable, crisp, and also has good palatability and flavor.
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The fish feed pellet extruder blowing procedure is a process that incorporates different operations such as mixing, massaging, shearing, heating, as well as air conditioning. The following is a details analysis from the elements of thickness control, automatic control and also energy conserving and also usage decrease.
1. Density control modern technology
In the extrusion procedure of fish feed pellet extruder, there are many factors that affect the thickness of feed, such as processing modern technology, fish feed pellet extruder equipment, processing parameters, process control, feed resources, formula and so on.
It is viable to regulate the item density by changing the raw product or formula, however it has little application value; by altering the screw setup, the thickness control of the extruded feed item can be understood, yet the procedure is troublesome. Density control can additionally be achieved by readjusting the operating specifications.
On top of that, in the fish feed pellet extruder handling of marine feed, in order to fulfill the feeding requirements of marine pets, the ups as well as downs of marine feed should be controlled, and also the ups as well as downs of feed are closely pertaining to thickness, so thickness control is applied in the production of water extruded feed.
Technology is particularly vital. Currently, managing the thickness of extruded products is generally achieved by managing the pressure and temperature level. The primary methods are as adheres to:
( 1 ) Open up a stress alleviation hole on the squeezing out tooth cavity, and also plug the stress alleviation opening when producing drifting feed, so as to satisfy the needs of high temperature and high pressure for processing floating feed.
Open the stress relief opening when feeding, so that when the product reaches the stress alleviation opening, the pressure in the sleeve is partly launched, as well as at the same time, some water vapor is also released from the pressure alleviation opening.
This fish feed pellet extruder process technique understands the control of the density of the extruded item by regulating the stress in the extruding dental caries, as well as the output will certainly not be influenced since the feeding amount does not require to be decreased.
( 2) A pressure regulating gadget is added in the floating fish feed extruder machine (pressurization before the die). The pressure regulation of the fish feed pellet extruder is to install a shut-off valve in between the extrusion cavity as well as the discharge theme to change the pressure difference in between the extrusion tooth cavity as well as the outside of the extrusion tooth cavity.
( 2 )Pressure cutting modern technology (post-mold stress). A brand-new sort of density control system was established for aquafeed. This thickness control system of fish feed pellet extruder adopts pressurized reducing modern technology to maintain a particular favorable stress in the reducing chamber.
When the product gets in the reducing chamber from the puffing chamber, because the boiling point of water increases with the pressure, the flash evaporation can be reduced to manage the level of development of the product, and the starch particles are instantaneously solidified in the reducing chamber, as well as the product no longer gets in the normal stress from the reducing chamber.
The positive stress of the reducing chamber can be recognized by inputting pressed air with an air pump, and the follower can be shut off when releasing.
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This fish feed pellet extruder process approach stays clear of managing other aspects that impact the degree of growth, consequently decreasing the demand for hands-on operation, and at the same time, the controllability is stronger than various other techniques.
Presently, this brand-new fish feed pellet extruder technology has not been used in China, but this modern technology is superior to the exhaust approach in terms of density control of extruded items and also operation as well as usage, and also is a new direction for the growth of extruded technology.
( 4) Controlling the opening price of the layout. By changing the opening rate of the discharge template, the pressure distinction before as well as after the layout can be altered, so as to attain the function of managing the thickness of the product. The hole is obstructed.
2. Automatic control of fish feed extrusion process
The automated control of the fish feed pellet extruder extrusion procedure describes the fast as well as specific control of the procedure parameters by outfitting the extrusion devices with a computer-aided control system.
The application of automated control modern technology in the fish feed pellet extruder blowing process can not just enhance job efficiency, yet also improve item top quality stability. Versions of automated control in the house as well as abroad
There are researches on all sides. The automated control innovation of the fish feed pellet extruder blowing procedure has made excellent progress, and a visualization control system of the puffing process has actually been developed. The squeezing out system of fish feed pellet extruder based upon FIX commercial setup software realizes the visual control of the extruding process.
The sensing unit can be utilized to conduct on-site detection as well as feedback on the operating criteria of the fish feed pellet extruder, automatically readjust the appropriate functioning specifications of the drifting fish feed pellet equipment, and also realize different preset by the operator.
Functioning specifications, with formula storage space, record printing, alarm system, vibrant screen as well as recording of working parameters. Foreign computer automated control modern technology has actually already been used in the field of feed handling
In the entire fish feed pellet extruder process, it has actually been developed from a single computer control system to an sophisticated automated control system, which can show color pictures in the central control area, computer program control and also interaction network for floating fish feed making device procedure, it can complete all production procedures without unmanned operation.
In general, the automatic control of puffing in feed handling abroad has actually been developing towards the direction of integrating with item top quality.
While the intro of computers in my country is mostly to solve the issue of production automation, just focusing on the tracking of devices procedure in the manufacturing procedure and also the control of stand-alone devices. It has actually not played its due role in enhancing item quality and also other aspects.
3. Energy saving in extrusion process.
The problem of energy saving and intake decrease is the research study emphasis in the fish feed pellet extruder extrusion process.
Presently, it is mainly via the research of reduced energy usage handling modern technology and the influence of major procedure parameters on power usage, and also the establishment of equivalent mathematical models to achieve the objective of power conserving as well as usage reduction.
In order to minimize the power intake in the fish feed pellet extruder puffing process, some residential feed manufacturers primarily take measures from the process. For instance, in the production process of suckling pig feed, the corn basic material used is not complete puffed product, yet part of the puffed product and part of the conventional material.
In the later fish feed pellet extruder granulation process, procedures such as growth as well as reduced temperature level granulation are utilized to make sure that the energy intake each item is decreased.
From the above evaluation, it can be seen that it is still a bottleneck problem how the procedure criterion study in the fish feed pellet extruder blowing process can be personified in reducing energy usage as well as can be recognized in real production.
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