What is the pressure for roller press granulation? What happens if the pressure is insufficient: The process boundary of
The pressure setting in roller press granulation directly determines the flake strength, fine powder circulation volume, and equipment lifespan. Typical operating pressures for roller presses of potash fertilizer and inorganic salts are approximately 30-50 kN/cm². If the pressure is too low, the flakes are brittle and easily broken, causing downstream crushing processes to break them into fine powder instead of granules, increasing the fine powder circulation volume. If the pressure is too high, it accelerates roller wear and increases energy consumption. Pressure is not a fixed value that is "the higher the better"; it needs to be continuously adjusted according to material temperature, particle size distribution, and moisture content.
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