Analysis on the new technology of compound fertilizer equipment combined granulation


There are two traditional compound fertilizer equipment granulation processes: one is the drum granulation process, and the other is the disc granulation process. The drum granulation process is suitable for the production of high-concentration compound fertilizer, but it is used to produce low-concentration compound fertilizer. When fertilizer is used, too much material is returned, the particles are not round, and the product quality is not high. The disc granulation process is suitable for the production of medium and low-concentration compound fertilizers. If used to produce high-concentration compound fertilizers, granulation is difficult and the yield is low. Therefore, the two existing compound fertilizer equipment granulation processes have their limitations. Most compound fertilizer equipment manufacturers, in order to save investment, often use disc granulation technology or the drum granulation process, but the development of compound fertilizer production until now, the compound fertilizer production line that only uses any of the above-mentioned granulation processes restricts the development of the enterprise. The market demands high, medium, and low concentration compound fertilizers of various grades.

For many NPK fertilizer manufacturing process equipment manufacturers, it is difficult and unrealistic to invest in two production lines, one drum granulation process, and one disc granulation process. Moreover, the equipment utilization rate is not high. Increase the applicability of the compound fertilizer production line, improve the utilization rate of equipment, and meet the needs of compound fertilizer manufacturers. Based on years of research experience in the process and equipment of the compound fertilizer production line, we have developed a new granulation process for the drum and disc combined compound fertilizer equipment, That is, a disc granulator is connected in series behind the rotary drum granulator. Through the electromechanical integration technology, the computer batching system is used to control the feeding point. The advantages of the two processes can be fully utilized to produce high-quality products on the same production line. High, medium and low concentration compound fertilizer products of many grades.

Compared with the traditional process, the new compound fertilizer manufacturing equipment combined granulation process has the following advantages:

1. Low equipment investment, wide applicability and high production efficiency;

2. The formula can be adjusted flexibly to facilitate the production of multi-grade compound fertilizer products such as high, medium and low concentration and controlled release fertilizers;

3. Improved production control performance, low labor intensity of workers and large output;

4. The content of the finished product is uniform and the particle quality is good.