The process flow of the complete set of npk production line equipment can usually be divided into: raw material batching, raw material mixing, raw material granulation, drum drying, particle cooling, particle classification, finished product coating, and final product packaging. The complete set of equipment has less investment, quick effect, good economic benefit, energy saving and consumption reduction, stable operation and reliable operation.
The drum dryer further removes moisture from the granulated granules to meet the standard requirements of moisture content. The dryer is an indispensable link in the production of high-quality fertilizers, and is an important equipment in the npk fertilizer production line. The dryer equipment is mainly composed of a heat source, a feeder, a feeder, a rotary drum, a discharger, a material crushing device, an induced draft fan, a discharger and a power distribution cabinet; after the dehydrated wet material is added to the dryer, Under the turning of the plate copying device evenly distributed in the drum, the material is evenly dispersed in the dryer and fully contacted with the hot air, which accelerates the drying heat and mass transfer. During the drying process, under the action of the inclined plate and hot air, the material is discharged to the star-shaped discharge valve in the other section of the dryer to discharge the finished product.
1. At any time, carefully check whether the joints of the dryer are firm and whether all parts are in good condition. If any abnormality is found, the maintenance personnel should be notified in time for maintenance.
2. The hydraulic oil of the dryer must be kept clean. When the new machine runs for a week for the first time, the hydraulic oil should be replaced. When changing the oil, the used hydraulic oil in the oil tank and the oil cylinder should be drained and the oil tank should be cleaned. Continue to use and replace it once a month, and replace it once every six months, so as to ensure the normal use of the filter press.
3. The maintenance of the hydraulic system of the dryer is mainly the inspection and maintenance of the hydraulic components and the sealing of each interface.
