Causes of 7 abnormal particles and improvements

LIMA Fish Feed Machine,Chicken Feed Machine

granulation machine, good effect, design special hole filter, carefully screen filtration, its friction filter ribs can be screened to rugged particles, in pharmaceutical, chemical, and food industry. The machine can replace the rocking particles and is a new generation of particle equipment. In the production of granulator particle material, there is sometimes a particle material in normal appearance, and for the insufficient or new feed manufacturer, it is sometimes found to find a problem. The reasons and improvement methods of seven common appearance abnormal particles are introduced to everyone to provide comparison references in feed production.

¡¡¡¡1. The pellets are bent and there are many cracks on one side1. The pellets are bent and there are many cracks on one side

¡¡¡¡This phenomenon usually occurs when the pellets leave the ring die¡£ In production, when the cutter position is farther away from the surface of the ring and the cutter is extruded, the particles are cut down or torn without being cut, and some of the particles bend at this time. Many cracks are present to one side and the other side. This particle material tends to break from these cracks during the cooling or transportation of the cooler, resulting in too much particulate powder from the production.

¡¡Improvement method:

¡¡¡¡a) Increase the compression force of the ring die on the feed, that is, increase the compression ratio of the ring die, thereby increasing the density and hardness of the pellets; If molasses or fat is removed, the uniformity of the molasses or fat should be improved and the amount added should be controlled to improve the compactness of the pellets and prevent the feed from being soft;

c) Adjust the distance between the cutter and the surface of the ring die , usually the distance between the knife edge and the outer surface of the ring die is not greater than the diameter value of the produced feed pellets, or use a sharper cutting blade. For small diameter pellets, a thin blade can also be used, and the thin blade is close to the ring die Surface production;

d) The use of bonding granulation aids helps to improve the internal bonding force of the particles.

¡¡1. The pellets are bent and there are many cracks on one side¡¡2. Horizontal cracks traverse the entire pellets

Similar to the phenomenon in case 1, the cracks occur in the cross-section of the pellets, but the pellets are not bent. This is likely to occur when a fluffy feed granulation containing more fibers will occur. This particle material is often used when the feed is crushed into the granulating hole of the ring mold, since the fibers having a longer diameter are contained, after the particles are extruded, the pellets are generated on the cross section. Crack , Producing a feed appearance of a fir tree skin.

¡¡The way to improve is to increase the compression force of the ring die on the feed, that is, to increase the compression ratio of the ring die;

Control the fineness of fiber crushing, and its maximum length cannot exceed the particle size 1/3;

Reduce the output to reduce the speed of the feed through the die hole and increase the density;

Extend the conditioning time, use a multi-layer conditioner or a kettle When the water content of the powder is too high or contains urea, it may also produce a fir bark-like feed appearance, and the added water and urea content should be controlled.

1. The pellets are bent and there are many cracks on one side3. The pellets produce vertical cracks

Some feed formulations contain fluffy and slightly elastic raw materials, which The raw material will absorb water and expand when it is tempered by the conditioner. After being compressed and granulated by the ring die, it will bounce off due to the effect of water and the elasticity of the raw material itself, resulting in vertical cracks.

The way to improve is:

Change the formula, but doing so may increase the cost of raw materials; control the quality of the steam used in conditioning, try to use more saturated dry steam to Minimize added moisture; reduce throughput or increase die hole efficiencyLength, as much as possible to increase the time of the feed in the mold hole; adding a binder also helps reduce vertical cracks. Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

4, the particles are generated by a source of radiation crack

1. The pellets are bent and there are many cracks on one side [123 ] Feed Industry Information Network – Based on Feed, Serving Animal Husbandry This appearance indicates that the particles contain large particle feedstocks, and this large particle material is difficult to absorb water. The moisture and heat in the vapor are so easy to soften as other finer raw materials, and during cooling, due to the difference in softening, the difference in shrinkage is caused to cause radiation cracks to increase the powder. Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry [ 123]

Properly control the thickness and uniformity of the powdered feed material, so that all the raw materials can be sufficiently softened when tuning temperament. Feed Industry Information Network – Based on Feed, Service Animal Husbandry 5, the surface of the particulate material is uneven

feed industry Information Network – Based on Feed, Service Animal Husbandry

In the powder, a large particle material containing no pulverized or semi-crushed, due to failure Fully softened, the particles are relatively hard and relatively large, and when the particularging machine is passed, it cannot be combined with other raw materials, so that the particles appear uneven. Another situation may be that the inclusion of steam bubbles in the raw material after mass injection, the steam bubble causes air bubbles during pressing into particles, and when the particles are extruded, the bubble is broken due to changes in the pressure. The unevenness in the surface of the particles is generated. This kind of feed may occur any feed containing the fiber.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry 1. The pellets are bent and there are many cracks on one side Feed Industry Information Network – Based on Feed, Serving Animal Husbandry [ 123]

Properly control the thickness of the powdery feed, so that all raw materials can be sufficiently soften during conditioning; for the fiber-containing raw materials, because it is easy to sandwich, do not in this formulation There are too many steam to add too much.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry 6, Pills

HHKCountry feed industry information network – based on feed, service livestock When the pellet is produced, if the amount of steam added is too much, excessive steam is stored in the fiber or powder, but When the particle extrusion ring is molded, the particles are pulled out due to the sharp change of the pressure, and the fiber or particulate material projections the surface, and the hose of the hand is formed, especially when the high starch, high fiber content is produced, the more steam used, more, The more serious situation.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry [ 123] 1. The pellets are bent and there are many cracks on one side Good conditioning. When we granulate high starch and high fiber content, (0.1-0.2 MPa) should be used to use low pressure steam to allow the moisture from the water and heat to the feed absorption. If the steam pressure is too high, or the downstream line of the pressure reducing valve is too short, it should generally be greater than 4.5m, and steam will inevitably release the moisture and heat, and some steam reserves. In the feed raw material after mass injection, when the granules, the pulse granule effects described above, in sumg, pay special attention to the pressure regulation of the steam and whether the installation position of the pressure reducing valve is correct. Feed Industry Information Network – Based on Feed, Serving Animal Husbandry 7 7, combined with different particles, commonly known as ldquo; flower rDQUO; [123 ]

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

In the production of aquatic feed, it is common to extrude individual particles extruded from the ring mold. The color is not consistent than the colors of the other normal particles, or the surface color of a single particle is inconsistent, thereby affecting the appearance quality of the total batch feed.

Feed Industry Information Network – Based on Feed, Service Animal Husbandry

Feed Industry Information Network – Bit Feed, Service Animal husbandry

A) Due to the complexity of the aquatic feed formula, there are many raw materials, and some ingredients are added more small. When the raw materials are mixed, if the mixer is not ideal, it is difficult. It is ensured that the mixed raw material entering the granulator is uniform, so that during the regulating and granulation, the physical and chemical changes in the raw materials are inconsistent with the raw material color change in different components, resulting in a variation of the raw material color of different components. Generate ldquo; Pattern rDQUO;, this condition is more prominent when the feed formulation contains the color change of temperature and moisture.

Feed Industry Information Network – Based on Feed, ServiceLive animal husbandry b) is inconsistent with the amount of raw material for granulation. In the aquatic feed production process, it is often necessary to compensate for the loss of the raw material moisture after ultrafine pulverization, and a quantity of water is added to the mixer, and then enter the mass strip and then enter the stront. Some feed manufacturers have been simple and poured into a certain amount of water directly in the mixer, rather than using a special nozzle to uniformly, so it is difficult to make the feed to be uniformly distributed after mixing. When this mixed raw material enters a tunmer, since the conditioner is not possible to further distribute the moisture in a short period of time, the feed of the feed is inconsistent with the molding effect, granulation under the action of the spring, and the feed is inconsistent. The post-color change is inconsistent.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

1. The pellets are bent and there are many cracks on one side Co-bun is a return material with repeated grains. After the granulation after the granulation is cooled and sieved, it can become a finished material, and the fine powder or small pellets after the sieves often enter the process flow to re-granulate, which is usually entered into the mixer or the position of the position. Since this reconversion is re-regulating and granulation, if it is mixed with other raw materials after conditioning, it is sometimes produced for certain feed formulations for certain feed formulations. . Feed Industry Information Network – Based on Feed, Service Animal Husbandry D) The inner wall cleaning of the ring mold is inconsistent. Due to the inconsistency of the finish finish, the resistance and extrusion of the particles are different when the extrusion is extruded, and the change in color is inconsistent. Further, there is a burr on the small hole wall of the ring, and the particles are scratched on the extrusion, resulting in different surface colors of a single particle.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

The reasons for the above-mentioned production ldquo;, the improvement method is very clear, mainly Control the mixing uniformity of each component in the formulation and mixing uniformity of the added moisture; improvement of tether, if necessary, control the temperature of the temperature, use low temperament temperature to reduce color changes; control return material For the formulation of easy to produce ldquo;, try to directly granulate without returning, should be mixed after mixing the return and the raw material; use the quality and guaranteed ring mode, control the finish of the mold hole, necessary After grinding the mold hole, use.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

In short, for the abnormal appearance of the abnormal appearance of the feed production, seven representative expressions are discussed above. There are also some of the appearance of the appearance of the particles because there is no discussion herein. As can be seen from the above discussion, the cause of these phenomena is multifaceted, and it is not completely isolated from each other.When dealing with such problems in actual work, we should add more analysis to seize the key to the problem to solve the problem.

Feed Industry Information Network – Based on Feed, Serving Animal Husbandry

(Original title: Seven kinds of feed production factors caused by moldy mildew, can not be ignored!)


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