Granulation technology of NPK compound fertilizer produced by drum granulator
Drum granulator is one of the key equipment in compound fertilizer industry, which is suitable for cold and hot granulation and large-scale production of high, medium and low concentration compound fertilizer. The main working mode is wet granulation. Through the relative amount of water or steam, the basic fertilizer can be fully chemically reacted after being humidified in the cylinder. Under the relative liquid-phase conditions, with the help of the rotary movement of the cylinder, the extrusion force between the material particles can be produced to agglomerate into pellets. The drum granulator cylinder is lined with rubber plate or acid resistant stainless steel plate, which realizes automatic scar removal and tumor removal and cancels the traditional scraper device.
The design of compound fertilizer production by rotary drum npk fertilizer granulator is that the steam pipe is buried in the material bed, and the sprinkling water pipe is arranged above the material bed. Under the condition of stable production and material supply, the saturated steam provides heat and part of water to humidify the material. Through the use of steam, the temperature and viscosity of the material are improved, so that the moisture content of the material can be reduced in the pelletizing process, thus reducing the drying load. Moreover, the liquid phase distribution of steam is more uniform than that of water. Only when the liquid phase of the material is insufficient and the material is unstable, can water be added as a supplementary means. In the process of production, we have encountered that due to the unreasonable installation of the steam nozzle and the uneven distribution of the liquid phase of the material, where there is a lot of liquid phase of the material, it is difficult for the material to form a ball, which affects the formation of particles. In view of this situation, we can increase the steam nozzle to improve the steam area of the material.
Fertilizer granulator machine price is only an indicator in the process of purchasing a product or service. If you simply compare prices, it is not so thoughtful. Price, quality, service, word of mouth, suitability for your own situation, etc. all need to be considered together. If you want to know more details, you can consult Zhengzhou Huaqiang Heavy Industry Technology Co., Ltd.
