The main purpose of manure production of organic fertilizer can be summarized in four aspects: 1. Stabilization. Through concentrated aerobic composting and large-scale treatment, the organic matter in the feces can be degraded, so as to achieve the purpose of stabilization and avoid the secondary pollution of the environment caused by moldy and odorous materials. 2. Harmless, kill parasite eggs and pathogenic microorganisms through disinfection, prevent infectious diseases from spreading through the land, and promote food production. 3. In order to realize the recycling of manure, turn harm into profit, and turn waste into treasure, we can provide a large number of high-quality fertilizer resources for the development of organic agriculture. 4. Industrialization, to establish new economic growth points for pig farms. The equipment of the organic fertilizer production line includes: fermentation equipment-raw material warehouse-pulverizer-granulator-dryer-cooler-screening machine-packaging scale. The equipment is connected to each other with a belt conveyor. Among them, the transmission belt can be used to pass back in the screening link, and the unqualified particles can be passed back to the crushing link for granulation by the fertilizer granulator.

In the production of organic fertilizer, granulation is an important part of it, which plays a role in linking the past and the next. This process is generally composed of three parts: pretreatment (magnetic separation, liquid addition, tempering), granulation and post-treatment (cooling, crushing, classification). After the granulation section, the material is transformed from powder to granular material. In this link, it is necessary to consider production efficiency without affecting product quality. It is necessary to ensure various physical indicators such as product particle hardness, powder content, water solubility, and material temperature after cooling.