New Type Two In One Organic Fertilizer Granulator

The new type two in one organic fertilizer granulator adopts a technical approach that simplifies complex processes. Conventional organic fertilizer granulation involves mixing materials with water in a mixer before transferring them via conveyors to a granulator—a setup requiring at least two main machines and multiple connecting conveyor sections. The two-in-one granulator integrates the mixing and granulation stages into a single cylinder within one machine; powdered material and water enter at one end, and finished granules emerge from the other in a seamless, continuous operation. For users, fewer machines mean reduced inspection and maintenance workloads, fewer potential points of failure, and no need for operators to move back and forth between a mixer and a granulator. This solution—handling two process steps with a single machine—offers irreplaceable practical value for retrofitting older workshops with limited space or for establishing new, small-scale organic fertilizer projects.

Working Principle

The operation of the new type two in one organic fertilizer granulator is a continuous, progressive process in which the material undergoes a gradual state change as it moves from the inlet to the outlet of the cylinder. The cylinder rotates at a constant speed and a specific inclination angle. At the feed end, spiral blades and mixing structures lift and scatter the powder, while an atomizing spray system evenly wets the material. Through repeated mixing and turning, the dry powder makes full contact with the water, forming a pre-mixed material that is uniformly moist yet loose in texture. As the cylinder rotates and the material moves forward along the incline, the mixing intensity gradually decreases, and the motion shifts primarily to tumbling. The moist, loose powder collides and bonds during tumbling, initially aggregating into tiny “seed” granules. As these seed granules continue to tumble, they adhere to surrounding moist powder, causing their size to grow progressively. By the time they reach the rear section of the cylinder, the granules have attained the target size and spill out of the discharge port under the thrust generated by the cylinder’s rotation.

Common Issues

A weak bond between the granule core and its outer layer indicates poor coordination between the mixing and granulation stages. If the material’s residence time in the mixing section is too short, the sprayed water fails to fully penetrate the powder; consequently, the resulting seed granules are moist only on the surface while remaining dry powder inside, preventing the subsequent layers of material from adhering securely. Inconsistent discharge rates between the front and rear sections of the drum usually indicate unstable material flow within the drum.

Potential causes include fluctuations in feed rate, uneven water spraying (leading to localized viscosity changes), or a mismatch between drum rotation speed and inclination angle (causing temporary material accumulation in certain zones). Check the feeder for consistent speed and ensure all spray nozzles are unobstructed; fine-tune the drum rotation speed or inclination angle if necessary.

Frequent clogging of spray lines. Beyond water quality issues, this is often related to nozzle selection and installation positioning. If the water used for organic fertilizer granulation has high hardness, scale deposits will accumulate rapidly at the nozzle orifices. Additionally, fine dust from the fermentation material can adhere to the moist nozzle surfaces, forming sludge deposits.

Localized excessive wear on the inner drum wall may result from uneven material distribution. If the feed position is off-center or the mixing blade angles are poorly designed, material may consistently move along one side of the drum, subjecting specific areas to concentrated, continuous abrasion. Adjust the feed chute angle to ensure material drops into the center of the drum.

Maintenance Methods

Inspection of internal drum components. Mixing blades and material-guiding plates are in constant contact with moist material, causing gradual wear to their anti-corrosion and wear-resistant coatings. Open the access hatch weekly to inspect blade wear and the tightness of connecting bolts; replace blades worn beyond half their original thickness, and tighten loose bolts using anti-loosening washers.

Spray system maintenance. After each shift, check the spray pattern of all nozzles and clear clogged orifices with fine steel wire; avoid striking with hard objects to prevent damaging the precision of the nozzle aperture. Clean the spray line filter weekly to remove accumulated fine dust and sediment. If hard water is used over the long term, flush the interior of the spray lines monthly with a dilute acid solution to remove scale.

Lubrication of drive and support components. Apply grease to the support roller bearings and thrust roller bearings every two weeks; clean away old grease and dust from around the grease nipples before application. The first oil change for the gearbox should be performed after 500 hours of operation; subsequent changes should occur every six months or every 2,000 hours.

Regularly inspect the axial movement (float) of the drum and the contact status of the support rollers. During operation, the drum undergoes axial movement due to thermal expansion and varying loads; this movement should be controlled within a range of 3–5 mm. If the movement exceeds this range, it should be corrected by adjusting the clearance of the thrust rollers.

Target Users

Organic fertilizer processors with limited site space. For renovation projects involving older workshops where the building footprint is fixed and cannot accommodate multiple pieces of equipment or complex material conveying lines, a single machine capable of performing two process steps saves significant space and reduces investment in conveyor belts. Small-scale organic fertilizer processing sites in rural towns often operate in rented premises with limited area, making the compact layout of the new type two in one organic fertilizer granulator a distinct advantage.

Those seeking a simplified process flow. Fewer pieces of equipment mean shorter installation and commissioning periods, faster time-to-production, and easier daily management. For entrepreneurs new to fertilizer processing, a simpler process is easier to master, and fewer machines reduce the overall uncertainty associated with the startup phase.

Enterprises looking to upgrade existing production lines for greater efficiency. After years of operation, traditional separate mixing and granulation lines often suffer from aging mixers, increased conveyor malfunctions, and declining overall efficiency; replacing the original mixing and granulation stations with a single new type two in one organic fertilizer granulator simplifies the equipment configuration and enhances operational reliability.

New Type Two In One Organic Fertilizer Granulator Parameters

Model	Capacity (t/h)	Output Granules Size (mm)	Motor Power (Kw)	Outside Dimension (mm)
YSL2-80/120	4-8	1-5	37+18.5+5.5	750023001950
YSL2-100/150	6-10	1-5	55+18.5+11	770025502260
YSL2-120/180	8-15	1-5	75+22+15	960030002750