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1. Wide Application & Strong Adaptability
It supports both dry and wet grinding modes. It can process metal ores, non-metallic ores, building materials, and chemical raw materials. The machine is highly adaptable to materials with different hardness and humidity, even for high-abrasion minerals.
2. High Grinding Precision & Stable Performance
The finished particle size is uniform and adjustable. It meets both conventional fine grinding and ultra-fine grinding requirements, ensuring stable and controllable product quality.
3. Mature Structure & Low Maintenance Cost
Adopting proven technology with a sturdy and durable structure. It is easy to disassemble and maintain. Core components have long service life, effectively reducing long-term operating costs.
4. Simple Operation & Intelligent Control
High degree of automation with flexible parameter adjustment. It requires no complicated operation steps, is convenient for on-site management, and saves labor costs.
Working Principle
A wet ball mill uses the rotation of the cylinder to drive the movement of steel balls and materials inside. After the material and water enter the cylinder in a specific ratio from the feed end, the centrifugal force and friction generated by the cylinder’s rotation lift the steel balls to a certain height before they fall freely, impacting and grinding the material. Simultaneously, the sliding friction between the materials and between the steel balls and the liners further achieves fine grinding. The ground slurry is discharged through the discharge device and enters the classification system for particle size screening.
Depending on the discharge method, wet ball mills are divided into two types: grate type and overflow type:
Grate Type: Relies on grate plates for forced discharge, resulting in a low slurry level, reducing over-grinding, suitable for coarse grinding or single-stage grinding, and offering higher processing capacity.
Overflow Type: Relies on internal pressure for natural overflow discharge, resulting in finer product particle size, suitable for applications requiring high fineness.
Product Structure
A ball mill mainly consists of the following parts:
1.Cylinder Section: A cylindrical structure welded from 15–36mm thick steel plates, lined with wear-resistant plates (such as high-manganese steel, rubber, ceramics, etc.) to protect the cylinder and optimize grinding performance.
2.Feeding Section: Materials and water are evenly fed into the cylinder via a combined feeder or screw conveyor to prevent clogging.
3.Discharge Section: An internal screw conveyor or screen plate controls the discharge particle size, ensuring smooth discharge of qualified slurry.
4.Transmission Section: Composed of a motor, reducer, and large and small gears, driving the cylinder to rotate at low speed. Some models employ edge drive or center drive designs.
5.Bearing System: Primarily uses double-row self-aligning roller bearings or hydrostatic bearings to reduce friction loss and extend service life.
6.Lubrication and Sealing System: Equipped with a thin oil lubrication device and sealing structure to ensure long-term stable operation.
