The selection of organic
fertilizer granulator machine is a headache for many enterprises, because the moisture content of organic materials after composting is generally between 30% and 40%, and there are more fibers.
The traditional granulation method is extrusion granulation (including roll-to-roll granulation) method and agglomeration method. Extrusion granulation is simple and practical. The fermented compost can be directly fed into the fertilizer granulator machine to be extruded into cylindrical granules by adjusting the moisture content to a moisture content of 20% to 30%. However, the mold cost of the extrusion granulator is high and it produces the granular fertilizers are not liked by farmers, and mechanized fertilization cannot be implemented; however, some small and medium-sized enterprises still mainly use extrusion granulation, so they can be launched quickly and quickly.
At present, the main direction of organic fertilizer granulation is to make round granules. In order to make round granules, companies try their best. Disc granulation or drum granulation are the principles of the agglomeration method. In the
NPK fertilizer production line, this granulation method is very common and practical, but for organic fertilizers, because organic composts are fermenting, after the moisture content is generally around 30%, the size of the compost is coarse, there are many fibers, and there are many agglomerates. It is difficult to agglomerate and granulate when using the disc or drum granulation method.
Huaqiang Heavy Industry has developed a special granulator for organic fertilizers based on the characteristics of high humidity, high fiber content and light weight of dry materials. It is based on the principle of inlaying particles between compost materials under a certain amount of moisture. Kneaded into round granules, the granulation moisture can reach 30% to 40% without pre-treatment and without adding a binder, which greatly reduces the production and operation costs, thereby making the organic fertilizer granulation process a step forward. Large steps are especially important for the granulation of pure organic fertilizer and biological organic fertilizer.
Selecting the organic fertilizer granulation type, generally, the organic fertilizer granulation equipment to be used should be determined according to the actual conditions of the raw material properties of organic compost, production output, product formula, and customer group for sale.
