Applicable raw materials for roller extrusion granulator
Common materials: ammonium chloride, potassium chloride, ammonium bicarbonate, potassium sulfate, ammonium sulfate, ammonium phosphate, calcium powder, calcium nitrate, ammonium bicarbonate, potassium fertilizer, urea, phosphorus nitrate, monoammonium phosphate, diammonium phosphate, etc.
Non-fertilizer materials include: carbon powder, fly ash, rare earth, deicing agent, graphite powder, lignin, bentonite, gypsum powder, etc.
Double Roll Extrusion Granulator Structure
Double roller granulator This machine is produced by non-drying process, granulated at room temperature, and formed at one time. It has the characteristics of less investment, quick results and good economic benefits. The structure of this machine adopts the integration of granulation, forming and screening, so that it has the characteristics of beautiful appearance, simple operation and low energy consumption. The main components are made of a new type of metal with anti-corrosion, wear-resistant and impact-resistant characteristics. This extrusion granulator has compact structure, good stability, good sealing, low noise, and convenient operation and maintenance. These advantages of double roller granulation machine attract fertilizer suppliers to buy it.

Working principle of roller extrusion granulator
The motor drives the pulley, and the transmission belt is transmitted to a pair of two high-pressure rollers with a sliding form shell through a reducer to do relative work. The two rollers of the uniaxial extruder are interacted by a set of split gears, and the two rollers of the biaxial extruder are directly driven by two output shafts on a special reducer to achieve extrusion molding. Purpose. During production, the raw material enters from the hopper, is relatively extruded by the high-pressure roller body, and flows to the crushing and forming studio at the lower part of the roller body after demoulding. The power of crushing and forming is driven by the sprocket of the active pressure roller shaft through the chain transmission to a pair of crushing rollers for relative motion. After crushing and screening in the working room, the finished particles pass through the screen to the discharge trough and flow out of the machine. This is the whole working process of roller granualtor.
Reference data of finished pellets for test machine
The finished pellets of the double-roll extrusion granulator is between 3mm and 15mm, and the compound fertilizer raw materials such as ammonium chloride use more 4mm to 5mm finished granules, which meets the market demand. For granulation of other toner or special materials, 8mm or 10mm granules are more suitable. For potash fertilizers and other materials that do not require round particles, relatively irregular abrasive tools are used for production, and the finished products meet market demand. The relative output of the roller extrusion granulator is between 1 ton and 1.5 tons per hour, between 1.5 tons and 2 tons per hour, the material balling rate is about 85%, and the moisture content of the compound fertilizer material is generally 2% to 8 %, the moisture content of special materials may be controlled below 20%, which needs to be obtained according to the test machine data. The parameters corresponding to each model of the roller extrusion granulator are: roll skin Φ150mm*220mm, power 15kw, roll skin Φ150mm*300mm, power 18.5kw, roll skin Φ186mm*300mm, power 22kw, and the particle strength is generally 6N to 20N (Break pressure) between. If specific data is needed, materials can be sent to the factory for free test run. Click here to know more about roller extrusion pelletizer
Configuration and selection of supporting machines for the production line
When large-scale double roller fertilizer granulation is required, matching machines need to be available, such as automatic batching system, material mixer, material conveyor, drum screening machine, automatic packaging machine and other corresponding machines for mutual production, and a small compound fertilizer manufacture plant can be built. According to the corresponding output, increase the number of roller extrusion granulators for coordinated production. When a single output is produced, the automatic batching system can be replaced with a simple silo, and the corresponding material mixer can also be used optionally. If you want to learn details, please visit https://fertilizerequipmentmanufacturer.com/fertilizer-roller-extrusion-granulation-line/












