Vertical Ring Die Granulator
Application Areas
Vertical ring die pellet mills play a crucial role across multiple industries due to their highly efficient powder compaction capabilities. Their vertical structure is particularly well-suited for processing lightweight, free-flowing materials such as wood chips and rice husks, making them especially prominent in the biomass energy and feed industries.
Vertical Ring Die Granulator Granulation Process
1. Crushing and Pulverizing: Grind raw materials to an appropriate particle size. Larger materials (e.g., corn kernels, wood chips, straw) require processing through crushers, pulverizers, or hammer mills to ensure uniform particle size, typically between 1-6 mm. Excessively large particles hinder molding and cause mold wear; overly fine particles exhibit poor flowability, affecting roller pickup.
2. Batching and Mixing: Achieve nutritionally balanced or uniformly composed formulations. Multiple ingredients (e.g., corn meal, soybean meal, premixes) are thoroughly blended in a mixer according to formula ratios. This pre-treatment enhances plasticity and pellet formation rates.
3. Feeding: The feed screw uniformly and steadily conveys the conditioned material from the top inlet into the internal pelletizing chamber.
4. Distribution and Compaction: Upon entering the vertical ring die, the material is evenly distributed by a distributor or centrifugal force into the compression zone between the rotating ring die and rollers.
5. Extrusion Molding: Power from the main motor is transmitted through a reducer for speed reduction and torque increase, driving the vertical ring die to rotate at high speed. Material is drawn into the narrow gap between the ring die and compression rollers, where it is forcibly squeezed into the die holes under immense line pressure. This process generates temperatures exceeding 90°C, further promoting material maturation and bonding.
6. Cutting: Extruded strands emerge from the ring die's outer wall and are cut into desired-length pellets by blades mounted on the cover.
7. Cooling: Hot pellets are immediately conveyed into an air-cooled dust collector. Cool air passes through the pellet layer, removing heat and moisture to shrink and harden the pellets for storage and transport.
8. Screening: The cooled pellets pass through a vibrating screen, separating well-formed pellets from fines and powder. The screened powder can be returned to the pelletizer for reprocessing, minimizing waste.
Before and after granulation
The vertical ring die pelletizer can transform various powdered raw materials into uniform, high-density, hard cylindrical pellets that are easy to store and transport. Whether used as feed, fuel, or fertilizer, these finished pellets possess significantly higher commercial value and practicality than the original powdered materials.
FAQ
| Q: Can I use this production line to produce multi granularity particles? |
| Yes, our production line is multifunctional. We can customize ring moulds of different sizes. In this way, you can easily adjust the size of your ball. |
| Q: I know little about the fertilizer production line. How to choose the most suitable machine? |
| Just tell us your raw materials, capacity (tons / hour) and the size of the final particle product, and we will choose the machine for you according to your specific situation. |
| Q: Our workers don't know how to operate the production line. What should I do? |
| Our engineers will instruct the site workers on how to install the machines and build the workshop.And field test the production line, training workers how to operate. |
| Q: Are you a trading company or a manufacturer? |
| We have a large factory in Xinxiang, China, covering an area of 10000 square meters. Welcome to visit. |
| Q: What's the Production Period of the Fertilizer Machine? |
| For single fertilizer machine, our production time is 7 days;and for whole fertilizer production line, our production time is no more than 30 days. |
| Q: What's the Quality Guarantee and Certifications? |
| All of our machine have passed ISO and CE certification, we can guarantee the highest quality and our warranty time is 5 years after shipment date. |
Audited Supplier 
){kind=link}