The npk production line equipment usually includes: crusher, feeder, horizontal mixer, double-roll granulator, dryer, cooler, screening machine, weighing packaging machine and other equipment. The following introduces several common equipment, granulator, dryer and cooling equipment.
The npk fertilizer production line granulation equipment: The granulation of mixed fertilizer is an important process of the dry powder granulation process. It is not only related to the internal and external quality of the product, but also related to the size of the output and the cost. In addition to the physical and chemical properties of the material itself, it is also closely related to the form and mechanical properties of the granulation equipment. The main types of granulation equipment are disc granulator, drum granulator, twin-shaft granulator, extrusion granulator and spray granulation dryer.
The npk fertilizer manufacturing process drying equipment: The granular fertilizer produced by the granulator generally contains 0%-16% moisture, and usually needs to be dried to make the moisture content of the fertilizer meet the national fertilizer standard, so as to meet the requirements of storage, transportation and application. At present, the commonly used dry-operated organic fertilizer equipment in China is the direct heat transfer rotary dryer and the spray drying tower.
Npk production line cooling equipment: After the mixed fertilizer is dried, the temperature is still high. If it is directly packaged without cooling, it will cause moisture absorption and agglomeration, which will affect the product quality. In actual production, cooling equipment must be installed, ventilation measures must be taken, and the temperature must be forced to cool down. At present, the commonly used cooling equipment includes rotary cooler, boiling cooler and vibrating fluidized bed cooler, among which rotary cooler is the most widely used.
