The extrusion double roller granulator
is a material processing and forming equipment, and its characteristics are destined to play a leading role in the production of compound fertilizers. The advantages of the double-roll extrusion granulator in compound fertilizer production technology are energy saving and consumption reduction. Extrusion granulation is the granulation of materials at room temperature. Compared with other methods, it does not require monotonous methods such as fuel oil and gas.
There is no need to add adhesive for extrusion type double roller granulator. Steam granulation is the common method for producing compound fertilizer. Water vapor condenses and crystallizes between the material molecules, which is the result of binder in the process of making. However, in the monotonous process, it is necessary to drive out the water inside and outside the particles, otherwise the fertilizer is easy to stick and agglomerate in the storage process. However, dry granulation does not need other additives, only uses the molecular force of the material itself, which simplifies the process and reduces energy consumption.
Compound fertilizer double roller granulation process: automatic batching system → fertilizer mixer machine → roller granulation unit → screening machine → packaging machine.
The investment of extrusion type fertilizer granulator
is low because it saves monotonous process, low return ratio (accounting for about 15% of the total feed amount of kneading machine), simple technical process and low investment.
There are more than 20 kinds of materials used in the extrusion roller granulator, such as ammonium nitrate, urea, ammonium chloride, calcium nitrate, potassium chloride, potassium sulfate, etc. In addition, the extrusion granulation technology can complete the conversion of commodity formula in a very short time. A set of equipment can produce more than 30 kinds of products.