Double Roller granulator is a kind of granulating equipment widely used in chemical, fertilizer, food and other industries. Its core function is to compress and granulate the powdery material through two relatively rotating rollers, so as to get the granules of required shape and size. With its high efficiency, stability, easy operation and other characteristics, the roller granulator has become an important equipment in the field of granule manufacturing.
The working principle of the Double Roller granulator is based on the pressure exerted on the material between two oppositely rotating rollers. Powdered material is fed between the two rollers and, as the rollers rotate, the material is subjected to squeezing and shearing forces that gradually polymerize it into granular form. Roller designs often include different groove types and surface textures to accommodate different materials and particle shapes.
The output range of Double Roller granulator varies depending on the model, size and material characteristics. In general, small machines may only be able to produce tens of kilograms of pellets per hour, while larger machines may achieve outputs of several tons or more. Output is also affected by a variety of factors such as operating conditions, material moisture, roller speed and roll gap adjustment.
| Model | Capacity(tph) | Power(kw) | Size(mm) | Roller size(mm) | Rotation Speed(rpm) |
| LAZR-1.0 | 0.8-1 | 11-15 | 1200*700*1000 | Φ150*220 | 1450 |
| LAZR-1.5 | 1-1.5 | 11-15 | 1300*800*1100 | Φ150*300 | 1450 |
| LAZR-2.0 | 2-3 | 22 | 1630*850*1650 | Φ168*300 | 1450 |
| LAZR-3.0 | 3-4.5 | 30 | 1900*1050*1200 | Φ300*300 | 1450 |
The main structure of Double Roller granulator roller granulator includes driving device, roller, frame, gap adjustment device, lubrication system and control system. Among them, the roller is the core component of the roller granulator, which is usually made of wear-resistant and corrosion-resistant materials. The gap adjustment device is used to adjust the gap between the rollers to control the size and shape of the particles.
Double Roller granulator is widely used in the granulation process of chemical raw materials, compound fertilizer, feed, organic fertilizer, coal and other materials. Especially in compound fertilizer and organic fertilizer industry, roller granulator with its high efficiency and adaptability, become indispensable production equipment.
* Simple structure, easy operation, low maintenance cost.
* Strong adaptability, can handle a variety of materials of different properties.
* Uniform particle shape and adjustable size to meet different application requirements.
* For some sticky materials, clogging may occur.
* When running at high speed, the roller wears faster and needs to be replaced regularly.
* For some special materials, pre-treatment may be required to achieve the best granulation effect.
1、The material of roller skin can be 304 stainless steel, which greatly increases the service life of roller skin.
2、Increase the dispersing device under the roller skin to prevent the particles from sticking.
3、Support the increase of brushes under the roller skin to prevent the material from sticking to the roller skin.
Double Roller granulator participated in the experiment
1. dismantle the pick-up device at the inlet of the extruder.
2. Use aluminum or plastic sheet to clean the roller gap and the debris and foreign objects attached to the roller groove and the body wall.
3. Loosen the belt pulley and adjust the worm gear clearance.
4. Tighten the gear bearings on both sides.
5. Adjust the centrifugal worm gear eccentricity distance.
6. Slightly adjust the pulley clearance in the order of rotation direction so that the clearance is even.
7. Reassemble the reclaiming device.
When adjusting the roller extruder pelletizer clearance, special tools should be used, do not use hand tools or other improper tools. After the adjustment is completed, the equipment should be fully tested and inspected to ensure that the equipment operates stably and the performance meets the requirements.
Roller pelletizer: more video material
QUESTION OF THE DAY: Is it possible to make irregular bentonite cat litter with a double roller granulator?
