This urea NPK compound fertilizer production line with an annual output of 100,000 tons per year was put into operation in 2018. It can produce NPK compound fertilizers with various formulas such as 15-15-15 and 18-18-18. The entire production line adopts the Spanish incro technical package, and the main equipment configuration includes granulator, dryer, cooler and film coating machine. Since the humidity in Indonesia is relatively high, belt conveyors are mostly used in the entire production line. At the same time, in order to deal with the agglomeration of raw materials, Tongli is also equipped with large block crushers, cage crushers, etc.
What are the key points to pay attention to when installing a compound fertilizer production line?
- Equipment layout and space planning: Tongli first ensures that the layout of the production line is reasonable, ensures that all links are closely connected, and reduces the distance and time of material transportation. For example, the distance from the raw material mixing equipment to the granulator and then to the drying equipment should be the shortest to improve efficiency. Tongli will reserve at least 20% of the space for equipment maintenance and expansion.
- Civil construction: The equipment in the production line, such as the drum granulator and dryer, is heavy and generates vibrations during operation. Therefore, the equipment needs to be installed on a solid foundation, usually with a concrete foundation with a thickness of ≥300mm, to ensure long-term operation stability.
- Pipeline and electrical system design: The material conveying pipeline and electrical control system are reasonably designed to ensure easy operation and stability of automatic control. The pipeline layout should ensure smooth air flow and reduce resistance; the response time of the electrical control system should generally be ≤200 milliseconds to ensure accurate temperature and pressure control.
- Dedusting: Exhaust gas and dust will be generated during the production of compound fertilizers, so Tongli has designed efficient dust removal and tail gas treatment equipment, and the emission concentration can reach ≤50mg/Nm³.
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