Henan Machinery And Equipment Company Limited is specialized in Industry and agriculture,Machinery and industry equipment,Agricultural machinery since established in 10 years ago.So far,our company has established its branch companies in major cities throughout the country.Formed in NO.24 Shangwu Waihuan Road,Zhengzhou City ,Henan of China,City area,Zhengzhou City,Henan Province,China as the center, the radiation sales system and service network.Details:The full form of NPK is Nitrogen, Phosphorus, and Potassium. This composition is used as a fertilizer in the agriculture industry. The chemical and organic fertilizer have nutrition content mentioned on the package. It is also described in letters N-P-K. The percentage mentioned on the label shows the amount of NPK present in the fertilizer. Each nutrient has its own properties and benefits.Process of NPK fertilizer production includes milling, NPK granulator machine, cooling machine, screening and packaging machine. At first,?urea?and SSP were milled by electric mill. Unfortunately urea and SSP using in NPK plants were granulated and hence in addition to energy consumption in granulation step of urea and SSP, it uses some energy in milling step of NPK plants.In the next step that was most important step, the raw materials that were mixed in the proper ratio deliver to the NPK granulator machine. Rotation of drum granulators and heat by burners cause granulation. Number of drum granulators differs between 1 and 4 in the plants.There are 3 kinds of NPK granulator machine for NPK fertilizer production, separately being Rotary Drum Granulator, Disc Pan Fertilizer Granulator, and Roll Extrusion Granulator.Rotary fertilizer granulator machine is with the largest output. It is always used in NPK fertilizer plant with large production requirement. While disc pan granulator and extrusion fertilizer granulator machine is with small output. Customers can choose the most appropriate one in accordance with their capacity.?In general, granulation technology can be divided into two kinds: dry granulation and wet granulation. Taking extrusion fertilizer granulator for example, it just changes shape of materials, so granular fertilizers made by this Npk granulator machine can be directly screened, no need to dry and cool. As for wet granulation, water is added to shape granules, so the fertilizer dryer is necessary.?