The granulation technology of the dry process double roller granulator In the granulation process of the strong-pressure granulation method, the powder is compressed into a dense state by applying an external force in a limited space. The forces that produce stable agglomeration include bridging force of flocculation, low viscosity liquid adhesion, surface force and cohesion. The success of the agglomeration operation depends on the effective utilization and transmission of the applied external force on the one hand, and on the physical properties of the particulate material on the other hand.
The new roller control technology is adopted in the dry process double roller granulator, which makes the process parameters of dry granulation can be adjusted accurately and repeatedly, so as to produce high-quality particles efficiently. Compared with the wet process fertilizer granulation machine, the main advantage of the dry process double roller granulator is that the raw materials can be formed without adding water or binder in the granulation process. It is suitable for the materials with low moisture content. The formed products are irregular granules or blocks, and do not need to be dried. It reduces the waste of resources and labor, and can effectively improve the pile ratio of raw materials. It is worth advocating Use and efficient equipment.
The equipment investment is less and the economic benefit is good. The complete set of equipment is compact in layout, scientific and reasonable, and advanced in technology. Energy saving and consumption reduction, no three wastes discharge, stable operation, reliable operation and convenient maintenance. It is suitable for granulation of compound fertilizer, medicine, chemical industry, feed and other raw materials with high granulation rate. It can produce various concentrations and types of compound fertilizers (including organic fertilizer, inorganic fertilizer, biological fertilizer, magnetic fertilizer, etc.). In particular, rare earth, potassium fertilizer, ammonium bicarbonate series compound fertilizer granulation, in the domestic forefront.