At present, more than 80% of the fertilizer production enterprises in China are chemical fertilizer production enterprises. As a fertilizer that pollutes the environment, endangers people's physical and mental health, and destroys soil conditions and ecological balance, it has appeared or will appear the sign of sunset industry. Its production and development have been increasingly restricted by the environment, ecology, market, cost and other aspects. However, bio organic fertilizer is gradually accepted and widely used by users due to its low cost, high efficiency, nutrition, improving crop quality, environmental protection, green, moisture conservation, drought resistance and other advantages. Its industrial products have significant advantages. As long as the quality is guaranteed and the sales and service are expanded, it will eventually replace the chemical fertilizer to win the market. Therefore, the industrial risk is very small.

The twin double roller granulator has the following advantages: 1. Circulating operation, continuous production and high-yield finished products; 2. The material is forcibly compressed and molded by mechanical pressure without any additives, so as to ensure the purity of the product. 3. The particle strength can be adjusted, and the finished product strength can be controlled by adjusting the pressure of the roller; 4. The extrusion granulator is applicable to a variety of raw materials, and the particle strength can be freely adjusted according to different materials. 5. Compact structure, convenient maintenance, simple operation, short process flow, low energy consumption, high efficiency and low failure rate.

The production process of the organic fertilizer equipment is mainly as follows: the fermented organic fertilizer raw materials are crushed, screened, and then metered, proportioned and mixed (or further dried to produce powdered organic fertilizer) in the automatic proportioning mixing system according to the proportioning requirements with the binder and other ingredients to be compatible. The fully mixed materials are uniformly and continuously fed to the granulator by the belt conveyor for granulation,