We all know that the organic fertilizer granulator
is an indispensable part of the organic fertilizer production line, and the organic fertilizer granulator has made a breakthrough after experiencing the traditional extrusion and disc technology, and now most of the equipment adopts the drum or shotcreting process. Today, let's talk about the granulation methods of the granulator
1. Extrusion granulation: rotten materials with appropriate amount of inorganic fertilizer are extruded or rolled into granules by die and directly bagged. The fertilizer granulation process is strict in material selection and pretreatment, which needs to be adjusted to appropriate moisture content, and requires fine texture and good adhesion. Its characteristics are as follows: the process is simple, the drying process can be omitted; the product has high moisture content, coarse columnar particles, good granulation and uniform particle size, but easy to collapse during storage and transportation; low production capacity, large relative power, and easy wear and tear of equipment.
2. Disc granulation: almost all organic materials can be pelletized by disc process. After drying and micro grinding, the material is mixed with appropriate amount of chemical fertilizer and sent into the disc fertilizer pellet machine
. The mixture is sprayed and adhered by the humidifier, wrapped with the disc, and then dried and screened. The characteristics of the process are: the selection of materials is not high, but it needs to be dried and crushed first, so the process is cumbersome; spherical particles have low granulation rate and poor appearance; the production capacity is moderate and the power required is small compared with the same period.
3. Rotary drum granulation: the fertilizer granulation process
through the design of a unique granulator in the drum, using the principle of material particles collide with each other and inlay, to realize the direct granulation of high humidity organic materials. Its characteristics are: wide range of application, no special requirements for materials; simple process, without drying and crushing two pretreatment processes, directly on the machine production; spherical particles, high granulation rate, good appearance of goods.
4. Spray granulation: the process takes the concentrated organic wastewater produced by fermentation industry as the main raw material. The organic waste liquid is concentrated by multi effect evaporation, and then mixed with appropriate amount of mineral fertilizer to prepare slurry, which is sent to the spray granulator and dried by high temperature hot air flash evaporation. It has the advantages of small size, high energy consumption, high physical properties and high-grade granulation.