Chicken Feed Pellet Machine

Material volume quality

Generally speaking, the larger the volume and mass of the material, the higher the chicken feed machine granulation output. Therefore, when selecting raw materials, the formula personnel should also consider the bulk density of the material in addition to the nutritional needs.

Material particle size

The finer the particle size, the larger the specific surface area, the faster the steam absorption, which is conducive to moisture regulation, the more conducive to molding, and the higher the poultry feed maker machine granulation output.

However, if the particle size is too fine or too coarse, the particles will be brittle and affect the quality of the pellets; if the particle size is too fine, the energy consumption for crushing will be high; if the particle size is too large, the wear of the die and roller will be increased, and the more difficult it is to granulate by poultry feed pellet making machine, the energy consumption of granulation will increase, and production capacity will decreases.

Generally, the particle size of chicken feed should pass through a 3.5 mm screen, of which at least 80% should pass through a 1.18 mm screen.

Material Moisture

If the moisture content of the material is too high, the amount of steam added during pelleting will be reduced, which will affect the increase of the chicken feed making machine pelleting temperature, thereby affecting the yield and quality of pelleted feed.

At the same time, the moisture of the material is too high, it is difficult to temper and easily cause the material to slip between the inner wall of the ring die and the pressing roller, resulting in blockage of the ring die hole.

It is generally required that the moisture content of the material should be below 13% before conditioning and should not exceed 17% after conditioning. (Related product: cattle feed pellet machine)

Material composition

• Protein:
  The protein content of the material is high, the plasticity of the material is large after heating, the viscosity increases, and the granulation yield is high. However, when non-protein nitrogen (such as urea, etc.) is high, the chicken feed pellet making machine yield is reduced.
• Starch::
  Cereals with high starch content are easy to granulate under high temperature and high moisture, and the yield is also high. At this time, the conditioning moisture is required to be between 16% and 18%, and the conditioning temperature should be above 80 ℃. Otherwise, the starch gelatinization degree is poor, resulting in brittle granules, and even cannot be formed. Pellet yields are reduced if the grain has been cooked prior to conditioning (eg drying corn). Therefore, it is better not to choose drying when purchasing raw materials.
• Grease:
  Adding a small amount of grease (0.5 % to 3 %) is beneficial to reduce the wear of chicken feed maker machine parts and reduce the resistance of granulation, so that the particles can easily pass through the die hole and increase the granulation output. However, when the addition amount exceeds 2%, the particles will be loose and difficult to form.
• Crude fiber:
  Appropriate crude fiber content (3% to 5%) is beneficial to the bonding of pellets, reducing the pulverization rate of pellets and increasing the granulation output. However, when the crude fiber content exceeds 10%, the hardness and forming rate of the pellets will be affected due to poor cohesion, the wear of the ring die and the pressing roller will be aggravated, and the chicken feed pellet machine yield will be reduced.
• Minerals:
  Inorganic feeds have almost no cohesive force and poor granulation performance, which affects the granulation yield, increases the powder content of the produced granules, and causes poor forming rate. Therefore, when the inorganic content is high, a small amount of binder (such as molasses) is generally added to the material to improve the chicken pellet feed machine performance and increase the output.
• Heat-sensitive feed:
  lactose, whey powder, etc. will increase in viscosity after heating, which is beneficial to increase the yield. However, if the temperature exceeds 60 ℃, it is prone to coking, which will block the die holes and affect the chicken pellet feed machine yield. Therefore, warm water can be used when conditioning this type of feed.

The purpose of conditioning:

Conditioning and tempering is to make the material and steam fully mixed, so that the material can be matured, softened and reached a certain temperature and moisture, so as to reduce the resistance during granulation by chicken feed pellet machine.

Control requirements for quenching and tempering:

The tempering temperature of materials of different formulas and varieties is also inconsistent, and after the poultry chicken raw materials are tempered, the appropriate moisture should be between 2-6% higher than that before tempering.

When the quenched and tempered moisture is too high, the material is easy to slip between the inner wall of the ring die and the pressing roller, and even the pellets cannot be pressed or the chicken feed pellet making machine output is reduced. (Related product: rabbit pellet making machine)

When the moisture content of the quenching and tempering is too low or the original moisture content of the material is relatively low, the friction between the material and the pellet making machine for chicken feed will be severe, the vibration will be large, the output will be reduced, and the wear of the ring die and the pressing roller will be aggravated, and the appearance of the produced granules will be increased. It’s not pretty and it’s tough.

Quenching and tempering control points:

• Control of conditioning temperature and conditioning moisture for materials with different formulations:
  For formulations of different raw materials, the requirements for conditioning and tempering are inconsistent.
• Steam quality control of quenched and tempered steam:
  The steam enters the pipeline as saturated steam under the given pressure of the boiler. During the transportation process, it will lose energy to produce condensed water, which will become unsaturated hot and humid steam, which will adversely affect the chicken feed pellet machine conditioning.
  Therefore, the condensed water should be discharged before chicken feed machine conditioning and turned into low-pressure dry hot steam through the pressure reducing valve to improve the conditioning effect. After decompression, the steam pressure is not lower than 0.2 MPa, and the temperature is not lower than 120 ℃.
  Therefore, in the process of steam use, the influence of the given pressure of the boiler, the rationality of pipeline installation, and the stability of the operation of pipeline components such as traps and pressure reducing valves cannot be ignored.
  So, it is necessary to carry out regular inspection of the pipeline in order to improve the stability of the operation of the chicken feed pellet making machine.