NPK compound fertilizer production line is to make the NPK nutrient elements and other trace elements needed by crops through the process method, and concentrate the nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer and other chemicals together to produce granules suitable for crop needs. After the compound fertilizer granules are applied to the soil, the crops can be fully supplied with nutrients, and the crops absorb the required nutrients from the soil.
Rotary drum granulator is a major granulation machine in NPK compound fertilizer production line, and also an important granulator in fertilizer production industry.
Granulation is the core of fertilizer production line. Granulator largely determines the physical shape and quality of fertilizer particles. Compared with the disc granulator, the drum granulator fertilizer production line has stable process, low unit cost, large output and low consumption. Although the technological process of disc granulator is simple, it has the disadvantages of low output, poor particle forming rate and large fluctuation of product quality. It is difficult for disc granulator to produce high-concentration compound fertilizer with steam. Material needs to be adjusted by the operator beside it. It consumes a lot of manpower and labor.
The main processes of NPK compound fertilizer production line are batching, crushing, mixing, granulating, drying, cooling, screening and packaging. According to different markets and crops of compound fertilizer, the fertilizer production line can flexibly formulate and change raw materials. After fully mixing and evenly mixing the raw materials, they are fed into the drum granulator, which makes the materials into round particles, which can prolong fertilizer efficiency and facilitate sowing. NPK fertilizer particles can be stored in the market for a long time after drying and cooling.