Double roller press granulator is the main machine for dry granulation. With the improvement of environmental protection requirements and the degree of automation of the production process, its importance has become increasingly prominent. The granulation equipment of NPK fertilizer production line often adopts double roller press granulator. Our factory specially designed a roller press granulator production line.

The processing technology of NPK fertilizer production line mainly includes batching, mixing, granulating, drying, cooling, screening and packaging. Granulation is the core technology of fertilizer production. Double roller press granulator is widely used in compound fertilizer granulation. The extrusion granulation process of compound fertilizer is mature, and the production effect of compound fertilizer is good. The feeder feeds the uniformly stirred material quantitatively into the double roller press granulator, and the double roller press granulator turns the powdered fertilizer into flat spherical particles, which establishes the material properties of the fertilizer. Granular compound fertilizer is too wet. After drying and cooling system, the performance of compound fertilizer is improved and it is easy to store.

The double roller press granulator has the following advantages: 1. Circular operation to achieve continuous production and high-yield finished products; 2. The material is forced to be compressed and formed by mechanical pressure without any additives, thereby ensuring the product’s purity. 3. The strength of the pellets can be adjusted, and the strength of the finished product can be controlled by adjusting the pressure of the drum; 4. The double roller press granulator is suitable for a variety of raw materials, and the strength of the pellets can be adjusted freely according to different materials. 5. Compact structure, convenient maintenance, simple operation, short process flow, low energy consumption, high efficiency and low failure rate.