2026/02/11
Improving the uniformity of particles processed by organic fertilizer ball shaping machines hinges on material control, equipment adjustment, structural optimization, and closed-loop screening. The overall solution is summarized below:
Uniform Material Feed: The granulator cutter must be in close contact with the die to ensure particle length and diameter are similar, avoiding inconsistencies. Raw material moisture content should be controlled between 10% and 12%. Excessive moisture leads to material sticking, while insufficient moisture results in brittle particles that are difficult to round. Simultaneously, maintain stable granulator speed and feed rate, avoiding sudden changes to ensure consistent feed.
Equipment Parameters Directly Affect Uniformity: The rounding machine's inclination angle should be adjusted to 15°–25°. An excessively large angle results in rapid material flow and insufficient rounding, while an excessively small angle leads to material stratification. A medium speed is ideal to ensure sufficient particle rolling. Excessively high speeds cause breakage and stratification, while excessively low speeds result in poor pelleting. The rounding time should be controlled between 3 and 8 minutes; a uniform residence time ensures consistent roundness.
Structural Optimization Can Significantly Improve Results:Two- or three-stage particle rounding machines are preferred, as they produce more uniform rounding than single-disc rounding. The discs are equipped with guide plates and baffles to prevent particle stratification and flow deviation. Smooth, wear-resistant liners on the inner walls reduce friction and improve particle roundness.
In operation, continuous, uniform, and centered feeding is crucial to avoid large-volume feeding that could lead to particle separation of different sizes. A small amount of atomized water can be sprayed during rounding to soften the particle surface and enhance the rounding effect. Finally, a grading screen is used to return unqualified large and small particles to the machine for re-rounding, forming a closed-loop production process. The finished product particle uniformity can reach over 95%.
By implementing these steps effectively, particle uniformity, roundness, and yield can all be significantly improved.
