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Rotary drum granulation production line is to send each basic fertilizer raw material into its own storage hopper, according to the requirements of formula proportions, through the computer-controlled metering and conveying equipment, and sent into the raw material crushing or secondary remixing or storage hopper, each basic fertilizer, fine material and crushed coarse granules are returned to the granulation equipment through belts for granulation. The new blended raw materials are fed into rotary drum granulator at a uniform rate according to the balling rate. At the same time, the saturated steam is fed into the material layer as required, so that the granulation process can be granulated at a lower moisture content, which not only raises the temperature of the material, but also causes the material to be humidified, thereby reducing the drying load. But, it needs to depend on the granulation rate, if necessary, a small amount of water or fertilizer solution may be sprayed on the material to maintain the optimum liquid phase for the granulation of the material.
The main advantages of the rotary drum granulator are that the steam is used to heat and adjust the humidity, which improves the temperature of the granulation material itself, reduces the granulation water content, reduces the dryer load and improves the working efficiency. The equipment is easy to operate, flexible and easy to maintain. The phenomenon of material sticking to the wall is eliminated, the labor intensity of workers is reduced, and the service life of the equipment is greatly prolonged.
Characteristics of rotary drum granulation production line
1. Technological innovation, structural improvement, reasonable process layout, advanced technology and low production cost.
2. Drum granulation is characterized by high wear resistance, convenient maintenance, high ball forming strength, good appearance quality, corrosion resistance, wear resistance, low energy consumption, long service life, convenient operation and maintenance, etc.
3. High balling rate, high drying efficiency, balling rate up to 90%, with a small amount of returned material, the particle size of returned material is small, it can be re granulated; steam heating is introduced to improve the material temperature.
4. Reasonable layout, leading technology, small power, no three waste discharge, stable operation, convenient maintenance.