The lower guard plate for the grinding wheel assembly is installed beneath the grinding wheel unit of the vertical coal mill. It serves to protect the grinding wheel shaft, bearing housing, and surrounding critical components from erosion and abrasive wear caused by high-speed, dust-laden airflow, pulverized coal, and hard particles.

These guards can be custom-manufactured based on customer drawings and specific operating conditions, with high-wear zones reinforced using wear-resistant plates or other highly durable materials. By enhancing erosion and wear resistance, the guard plate effectively protects the grinding wheel assembly, mitigates the risk of wear on critical components, extends equipment service life, and reduces the need for maintenance and unplanned downtime.