The whole organic fertilizer manufacturing process consists of: raw materials choosing →materials crushing→fermentation→blending (mixing with other organic-inorganic materials, NPK≥4%, organic matter ≥30%)→organic fertilizer granulation→drying→cooling→packaging
Hydraulic compost windrow turner is the most widely-used fermentation turning equipment. This compost windrow turner includes fermentation groove, walking track,
electricity system, turning components and multi-tank system. Fermentation and turning parts adopt advanced roller drive. The fermentation equipment of hydraulic fertilizer turner can be raised and lowered freely.
◇Shred raw materials using a mechanical shredder if necessary
◇Bag and weigh raw materials to compute for proportions of each material based on nature and moisture content
◇Pile the raw materials while watering if moisture is below 50%
◇Inoculate with activator while piling to attain well-distributed inoculants
◇Sieve the pile after the 7th turning
◇Sweeten pile to cool down temperature and open pile for 7 days to reduce moisture to 40%
◇Turn the pile every 2 days for seven times and check decomposition process within pile to determine if additional decomposition period is required. Moist the pile if necessary
New organic fertilizer granulation machine is widely used in organic fertilizer granulation,
and it is the dedicated fertilizer pellet mill to granulate organic waste, such as animal manure, rotten fruit, fruit peels, raw vegetables, green manure, sea manure, farmyard manure, three waste and microorganisms etc. Due to high granulation rate, stable operation, durable equipment and long service life, it has been the ideal choice for organic fertilizer production. The shell of this fertilizer pellet mill are made of seamless tubes, more durable and never deformation. Coupled with secure base design, making this machine run more stable. The compressive strength of new type granulator is higher than disc granulator and rotary drum granulator. Size of particles is adjustable in accordance with customers’ requirements. This fertilizer granulator is most suitable for direct-granulation after organics fermentation, saving drying process, and greatly reducing the production cost.
3)Fertilizer Drying and Cooling Process
The granular fertilizer formed by the fertilizer granulator has high moisture content and
shall be dried to meet the standard. Rotary drum drying machine is mainly used for drying fertilizer with certain humidity and particle size in the compound fertilizer and organic fertilizer production. Fertilizer after drying have high temperature and shall be cooled to prevent caking of the fertilizer. Rotary drum cooling machine is used to cool fertilizer with certain temperature and particle size in compound fertilizer production line and organic fertilizer production line. The cooler is used combining with the rotary dryer, which can greatly increase the cooling rate, reduce labor intensity, increase capacity, and further remove the moisture and reduce the temperature of fertilizer.
4) Fertilizer Screening Process
In fertilizer production, the fertilizer granular shall be screened before packaging to ensure the uniformity of the finished product. Rotary drum screening machine is a common equipment used in the fertilizer industry for compound fertilizer production and organic fertilizer production. Rotary screen is mainly used in the fertilizer production line to separate finished product and returning materials. The trommel can also be used for classifying the finished product.
5) Fertilizer Packing
Materials are fed by gravity-type feeder, then enter into weighing system uniformly through gravity-type feeder from stock bin or production line. The gravity-type feeder starts to run after turning on packing machine. Then material will be filled into weighing hopper, through weighing hopper filled into bag. When weight reaches the preset value, the gravity-type feeder will stop running. Operators takes filled bag away, or put it on belt conveyor to sewing machine. The packing process finishes.