The steam drum granulation production of compound fertilizer equipment is a process that realizes thermal granulation. By increasing the temperature of the material, the solubility of the salt of the granulated water system material is increased, so as to achieve a liquid phase that meets the needs of material granulation under low moisture content. It reduces the heat energy consumption of the drying process, and improves the production capacity of the equipment. Therefore, the granulation performance of compound fertilizer equipment is one of the keys to determine the yield and quality of compound fertilizer produced by drum granulation. Let me discuss with you how to improve the granulation performance of compound fertilizer equipment?
1. Rolling events and frequency of materials in the drum granulator
of compound fertilizer equipment
The rolling event and frequency of the material in the granulator are the primary factors that determine the ball formation rate and particle roundness. The principle of drum granulation is that the material relies on surface tension, an appropriate amount of liquid phase, and the squeezing force generated by the rolling of the material. The material takes small particles as the core in the correct direction of movement in the granulator, and sucks the small particles during the rolling Attach and bond into a ball. The higher the frequency of rolling in a certain period of time, the higher the ball formation rate, and the rounder the particles will be after forming. During the production process, two situations occurred due to the different friction between the material and the barrel wall of the granulator:
(1) The internal surface of the granulator has a large smoothness, which reduces the friction between the material and the wall of the barrel, and weakens the upward movement of the material. The material does not roll, nor can it produce particles. In view of this situation, we can solve it by adjusting the speed of the granulator and installing a small copy board inside.
(2) The material in the drum granulator is severely stuck to the wall, and the friction between the material in the granulator and the wall of the barrel is increased, which raises the material in the machine too high, causing the material to fall from the top to the formation. Unrounded particles and too many large particles. We believe that there are two reasons for this situation: on the one hand, the material is caused by too much viscous material. In this case, we change the process formula and reduce the amount of viscous material to solve this situation; the other is On the one hand, the inside of the granulator is not smooth. This situation is solved by changing the internal material and increasing the smoothness of the inside of the granulator.
2. The stable material volume and uniform liquid phase distribution in the drum fertilizer granulator machine
is the key to producing qualified granules.
The design of drum granulation to produce compound fertilizer is to have a steam pipe buried in the material bed, and a sprinkler pipe is arranged above the material bed. Under the condition of stable production and supply, saturated steam provides heat while providing part of water. The material is humidified. Through the use of steam, the temperature and viscosity of the material are increased, so that the water content of the material can be reduced during the pelletizing process, thereby reducing the drying load, and the liquid phase distribution of steam can be more uniform than that of water. Only when the liquid phase of the material is insufficient and the material is unstable, add water as a supplementary means. During the production process, we have encountered improper installation of steam nozzles and uneven distribution of the liquid phase of the material, causing the material where there is more liquid phase to stick into large balls, and where the liquid phase is insufficient, the material is difficult to ball, which affects the formation of particles. In view of this situation, we can increase the steam nozzle to increase the steam receiving area of the material.
The above are two important measures to improve the drum granulation performance of compound fertilizer equipment shared by Zhengzhou Huaqiang. The drum granulator machine for fertilizer
produced by our company has low investment, quick results, good economic benefits, reliable performance, no three-waste emissions, and production Low cost and popular among customers.