Roller (Extrusion) Granulator Production Line


EMCC can provid the process design and supply of roller (extrusion) granulator 

system for producing agglomerated materials. Equipment included a Hopper & 

Feeder, Roller (Extrusion) Granulator, Dryer, Rotary Screen, Bucket Elevator, 

Belt Conveyor, Packing Machine and Scrubber.

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    Working principle


    This Roller (Extrusion) granulator production line can produce high, medium and low concentrated compound fertilizer for various crops. With the double granulator to produce the granules, the production line doesn’t need drying process, having small investment and low power consumption. The press rollers of the granulator can be designed to make different shapes and sizes of materials.The line includes automatic batching machine, belt conveyors, pan mixers, pan feeder, extrusion granulators, rotary screening machine, finished products warehouse, and automatic packing machine. We are ready to offer the most reliable fertilizer equipment and the most suitable solutions for our esteemed customers.

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  • 1. Adopt mechanical pressure to form the granules, no need to heat or humidify raw materials
    2. Suitable for heat sensitive materials, such as ammonium bicarbonate
    3. No need for drying process, low investment, low power consumption.
    4.No waste water or waste gas emission, no environmental pollution.

    5. Uniform particle size distribution, no segregation and agglomeration.
    6. Compact layout, advanced technology, stable operation, easy maintenance.
    7. Easy operation, easy to realize automatic control, increasing production efficiency.
    8. Wide raw materials application range, no special  properties requirement

    1. Automatic Batching Machine
    Firstly, various materials are proportioned as per the formula by the 5 bins batching machine, which can complete materials batching automatically with high accuracy and high efficiency, thus the quality of the fertilizer is ensured. After batching, the materials are conveyed to the pan mixer.
    2. Disc Mixer
    We adopt two sets of disc mixers in this fertilizer production line. The cycloidal reducer drives the main shaft to rotate, and in turn drives the agitating arms. With the stirring of agitating arms and small shovels on them, the raw materials are fully mixed. After mixing, the materials are discharged from the outlet at the bottom. The inner side of the disc adopts polypropylene plate or stainless steel, which makes the materials not easily sticky, and abrasion resistance.
    3. Double Roller Fertilizer Granulator
    By the belt conveyor, the well mixed raw materials are conveyed to the pan feeder, which feeds the materials evenly into the four extrusion granulators under the feeder through the hopper. By the counter-rotating high pressure rollers, the materials are extruded into slices. The slices flow down to the crushing chamber under the press roller, where they are crushed by the crushing rollers and screened to get the required granular. The press rollers adopt new type metal which is resistant to corrosion, wear and impact.

    4. Rotary Screening Machine
    By the belt conveyor, the granules from the extrusion granulator are sent to the rotary screening machine, where unqualified granules pass through the screen aperature and discharge through the outlet at the bottom, then conveyed back to the pan feeder, while qualified granules flow out through the outlet at the lower end of the machine and conveyed to the finished products warehouse.
    5. Automatic Packing Machine
    Through the finished products warehouse, the qualified granules are weighed and packed by the automatic packing machine. The unit consists of automatic weighing and packing machine, conveying device, sealing device and feeder. It has the features of high weighing precision, stable operation, low power consumption, and small land occupancy.


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