Granulation equipment knowledge to explain


Pelletizing equipment is a kind of forming machinery that can make materials into specific shapes. Generally divided into: roller dry granulator, drum granulator, dry roller granulator.

classification of granulation equipment:

The working principle of roller dry granulator: all kinds of dry powder materials are added from the top of the equipment, and enter the counter roller through degassing and spiral prepressing, and the materials are plastically deformed and compressed into sheets under the extrusion pressure of the counter roller. The flake material is then crushed, granulated, screened and other processes to obtain granular products. The size of the extrusion pressure can be adjusted by the pressure of the hydraulic cylinder according to the needs of the granulation operation.

The principle of drum granulator: the compound fertilizer granulation process of chemical reaction is completed in the tubular reactor by introducing steam, gaseous ammonia or adding phosphoric acid, nitric acid, sulfuric acid or nitrogen solution, phosphoric ammonia slurry and heavy calcium slurry into the machine; Or the cold granulation process of compound fertilizer with a small amount of water. The material to be granulated through the rotating movement of the cylinder, rolling and rotating in the cylinder, under a certain humidity and temperature, the material is agglomerated into a ball, and the smaller particles in motion gradually form particles of a certain specification to complete the granulation process.

The working principle of the dry roller granulator: the dry powder material is added from the top of the equipment to obtain the granular product.

Precautions for the use of granulation equipment:

1. Pay attention to the temperature change of the fuselage at any time. When touching the strip with clean hands, it should heat up immediately. It is normal until the sliver touches the hand.

2, the reducer bearing part of the hand burning, or accompanied by noise should be timely maintenance, and add oil.

3. When the bearing parts at both ends of the main engine bearing room are hot or have noise, stop the machine for maintenance and add butter. During normal operation, butter is added to the bearing chamber every 5-6 days.

4, pay attention to find out the operation law of the machine; For example, the temperature and speed of the machine can be handled in time according to the situation.

5. When the operation of the fuselage is unstable, attention should be paid to check whether the gap between the coupling device is too tight, and it should be loosened in time.

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