2025 دليل المشتري: تعلم كيفية اختيار حلقة يموت في 5 دقائق

1. ما هو خاتم يموت?

A ring die is the core molding component of a ring die pellet machine (such as a biomass fuel pellet machine or feed pellet machine). Its name derives from its annular structure and die function. It is essentially a porous, annular metal disk that compresses loose biomass or feed ingredients into high-density pellets through high-pressure extrusion.

2. The role of ring die

In the operation of a ring die pellet mill, the die may appear to be just a “metal disc,” but it is the “invisible commander” of the entire machine.

It not only directly determines the “appearance” (appearance) and “strength” (performance) of the pellets, but also quietly influences your production efficiency, cost-effectiveness, and even order competitiveness.

The ring die is the “heart” of the pellet mill, both a core component and the “vulnerable part” on the production line. It is here that the raw materials undergo the crucial transformation from loose state to regular particles.

When the raw materials enter the pellet mill through the feed port, they officially enter the “extrusion workshop” formed by the ring die and the pressure roller.

3.Ring die pellet machine working process

Here, the raw material is first subjected to the dual forces of centrifugal force and friction, pressing it against the inner wall of the ring die as if by an invisible hand, tightly adhering to the die and rollers. As the ring die and rollers rotate synchronously.

The raw material is continuously squeezed and pushed, forced through the densely packed holes on the die surface.

This process reshapes the raw material under high pressure, significantly increasing its density. By the time it finally “extrudes” from the die holes.

It has formed a regular, columnar shape. التالي, a high-speed cutting blade precisely severs it, creating uniform pellets, completing the magnificent transformation from raw material to finished product.

4. Application of ring die

In the agricultural machinery sector, ring dies are found in nearly every grain processing and feed production line. From corn flaking and wheat pelleting to rice maturation, and from livestock and poultry feed to aquatic pellet production, ring die pellet machines remain the core hub of pelleting equipment.

Take grain processing as an example. Farmers or food factories feed raw materials like corn and wheat into a ring die pellet machine.

The synergistic extrusion between the ring die and rollers quickly transforms the loose grains into pellets of uniform density, facilitating storage and transportation while increasing added value.

In the animal feed industry, ring dies play an even more crucial role: Whether it’s protein pellets for pig feed,

Energy pellets for chicken feed, or floating pellets for aquatic feed, they all require precision shaping through ring dies to ensure a stable nutritional profile and enhanced palatability.

لكن, the ring die is also the most delicate component in pelleting equipment: prolonged friction with hard raw materials (such as straw and bran) or improper operation (على سبيل المثال, large fluctuations in raw material moisture content) can accelerate wear and even cause problems such as die hole clogging and cracking.

لذلك, when designing pelleting equipment, agricultural machinery manufacturers customize the ring die’s hole diameter and compression ratio based on the characteristics of different raw materials (حبوب ذرة, وجبة فول الصويا, forage grass, إلخ.).

When using it, feed producers must also strictly control raw material pretreatment (impurity removal and conditioning) and equipment commissioning (die roller gap and temperature control) to maximize the life of this “core hub” and truly achieve the goal of “saving costs and improving efficiency.”

Feed formulas vary widely, depending on the region and the local raw materials. لكن, most basic raw materials include corn, فول الصويا, and soybean meal. A pellet mill rapidly and highly pressurizes these crushed raw materials into cylindrical pellets, making them more suitable for animal feed. It’s ideal for various feed mills.

5. Maintenance and maintenance of ring die

During the production process, the ring die of a pellet mill will inevitably experience the following issues: die blockage, varying degrees of wear, and tapered mouth deformation.

Failure to perform necessary maintenance during this process will inevitably increase energy consumption, reduce production capacity, and impact profitability.

1. After a period of use, regularly inspect the inner surface of the ring die for localized protrusions and the die guide openings for wear, sealing, or inward rotation. If these conditions occur, repair the die promptly to extend its lifespan.

2. If most of the die holes are blocked, soften the material by soaking it in oil before pelletizing.

3. Avoid striking the working surface of the ring die with hard steel tools during loading and unloading.

4. Maintain records of ring die usage to accurately calculate the actual lifespan of the die.

5. Ring dies must be stored in a dry, clean area, with the specifications clearly marked. Storage in humid locations can corrode the die holes, shortening the die lifespan and affecting discharge efficiency.

6. Different types of pellet machines

Pellet mills can be roughly divided into two main types: flat die pellet mills and ring die pellet mills.

Flat Die Pellet Mills: These machines feature a flat die at the center, with rotating rollers moving above the die to compress the powdered material into pellets.

They are typically used for small-scale production and can process different types of materials, such as animal feed and biomass.

Ring Die Pellet Mills: These are short-tube machines equipped with a cylindrical die and a set of rollers. They are more productive and efficient than other machines in pellet production lines, achieving maximum yields for animal feed, wood pellets, and other industrial uses.

7.What kind of poultry feed do you want to produce?

Our feed pellet machine is suitable for producing a variety of poultry and livestock feed, such as chicken, pig, الماشية, غنم, duck, rabbit, horse, camel, سمكة, إلخ.

The particle size can be controlled between 1.5-12 مم.

8. How to maintain the ring die pellet machine in daily life?

Ring die pellet mills are a type of fuel pelletizing equipment. They process crushed materials such as straw, وجبة فول الصويا, stalks, قذائف الفول السوداني, and husks directly into pellets.

They offer superior yield and quality. Due to their complex design and high maintenance requirements, regular maintenance is essential to ensure proper operation.

Daily maintenance precautions:

1. Regularly remove any remaining material from the pellet mill to prevent corrosion of the ring die.

2. Fill the pellet mill with lubricating oil before each shift to reduce high temperatures caused by friction.

3. Regularly check the gap between the ring die and the roller to ensure it is within the normal range.

4. Regularly check the tightness of the triangular tape and adjust it promptly.

5. Keep the pellet mill surface clean. Keeping the pellet mill clean will prevent corrosion.

Daily maintenance precautions:

1. If the equipment is not producing pellets, check the feed holes for proper function. If not, drill them with a hand drill.

Pay attention to the moisture content of the mix and adjust the gap between the inner wall of the ring die and the rollers.

2. Low pellet formation rate. This is because the moisture content of the material is too low. Increase the moisture content of the powdered material.

3. Rough pellet surface. Add oil to the material and circulate the extrusion cycle to allow for smoothing until the desired height is reached.

4. Low output. If the feed rate is insufficient, increase the feeder gate opening. If the gap between the inner wall of the ring die and the rollers is too large, adjust the gap to approximately 0.15 مم. If the powder is clumping inside the ring die, remove the lumps inside the die sleeve.

Q&أ

Q1: What raw materials can the ring die pellet machine process?

A1: Agricultural and forestry waste (رقائق الخشب, قَشَّة, rice husks), feed ingredients (corn straw, distiller’s grains), النفايات الصناعية (palm shells, sugarcane bagasse), إلخ. Suitable for loose materials with a moisture content of 8%-18%.

Q2: What should I do if the pellets are loose and fragile?

A2: Check the die compression ratio (increase to 15:1 or higher), or increase the raw material moisture content (8%-12%). Clean any residue in the die to prevent secondary crushing of the pellets.

Q3: I have straw, نشارة الخشب, and rice husks at home. Can I use them together?

A3: Yes! لكن, the ring die parameters will need to be adjusted (على سبيل المثال, if straw is softer, use a larger die with a 5-8mm opening; if sawdust is harder, use a smaller die with a 3-5mm opening). If mixing raw materials, it’s recommended to first crush them to a uniform particle size (≤ 1/3 of the ring hole diameter) and then condition them (add a small amount of water/steam) to avoid die clogging.

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