Alumina Ceramic Liner

Advantages

1. Extend the service life of equipment
The service life of alumina ceramic lining in wet grinding services is 3-8 years, while manganese steel lining is 6-18 months, and rubber lining is 1-2 years, depending on the size of the mill, ore wear resistance, and operating conditions. The extension of equipment lifespan comes from two characteristics: a Mohs hardness of 9 (the Mohs hardness of manganese steel is about 5-6), which means that the abrasive quartz and silicate particles in the slurry will not scratch or chisel out the ceramic surface like steel; A water absorption rate close to zero (≤ 0.01%) means that ceramics will not be affected by the corrosion mechanism of slurry erosion on steel in humid environments, where water and dissolved oxygen accelerate surface fatigue and material removal.
2. Cost savings
The bulk density of alumina ceramics is 3.60-3.70 g/cm ³, while the bulk density of manganese steel is 7.8 g/cm ³. Switching from steel lining to ceramic lining can reduce the weight of rotating materials by approximately 20000 kg (20 tons). This reduced rotational mass reduces the motor torque required to rotate the mill, thereby reducing energy consumption by 5-15% and decreasing the load on bearings and gearboxes.
3. Zero iron pollution
In mineral and material processing applications where product purity is important - white ceramic bodies, ceramic insulators, zirconium silicate emulsifiers, talc, kaolin, wollastonite, pigments, titanium dioxide, lithium battery materials, and electronic ceramics - iron pollution from steel grinding media and steel liners is a costly issue. The wear rate of manganese steel lining is 50-200g of iron per ton of product introduced into the slurry, which can cause discoloration of white objects, affect dielectric properties, and contaminate battery grade materials. Ceramic lining paired with alumina grinding balls does not introduce iron - the only wear particle is alumina itself, which is a normal component of ceramic bodies and most mineral products.

Applications

1. Mineral Processing
Mining plants are the largest users of alumina ceramic lining plates and also have the highest requirements. A typical copper beneficiation ball mill processes 150-300 t/h of copper ore, with a quartz content of 20-30% and a slurry density of 65-75% solids. The grinder operates around the clock, and replacing the lining requires 8-12 mechanics to shut down for 3-7 days. Ceramic lining is suitable for these applications because: (1) a lifespan of 5-8 times means that the lining needs to be replaced every 5-7 years instead of every 12-18 months, saving 2-3 major shutdowns during the lining's lifespan; (2) The lighter weight reduces the power consumption of the grinder by 5-10%; (3) The ceramic lining is not affected by the lime adjusted alkaline slurry (pH 10-11) that accelerates steel corrosion. For gold and silver mines that frequently handle cyanide leaching slurries (pH 10.5-11.5), the chemical inertness of ceramic lining to cyanide and caustic soda is an advantage.

2. Cement and building materials
Cement plants use wet grinding ball mills in wet process plants, raw material mineral grinding, and cement precision grinding. In wet cement production, the slurry is pumped through a mill with a solid content of 30-40%, and the mixture of highly abrasive clinker and raw materials causes severe wear on the lining. The 92% grade lining was born for these applications because it is more durable than steel lining and reduces iron pollution that can affect cement color (important for white cement) and setting time. In cement plants producing white or light colored cement, zero iron efficiency is crucial - steel lining wear introduces iron, causing the cement to turn black. For grey cement, the main advantage is a longer service life and shorter downtime for lining replacement, which is very valuable in cement plants that operate 24/7 and have limited maintenance windows.

Product Parameter

Product Size

Technical specification of alumina ceramic ball

Why choose us?

1. Solve from the source
Different areas of the same machine may experience very different degrees of wear and tear. HUAO can discuss lining specifications based on the location where materials enter, change direction, accelerate, or accumulate. When the device requires different protections, this method helps avoid using a single thickness or tile format throughout the installation process.

2. Support customization
The current product line includes mosaic, hexagonal, and ordinary ceramic tiles with various contents, sizes, and thicknesses. According to the requirements, various customized contents, sizes, and shapes can be provided.

3. Practical installation options
Lining can be used for different connection methods, including adhesive and welding related installation arrangements (if applicable). The fixed method can be considered together with the equipment surface, maintenance channels, and replacement requirements.

4. Suitable for new equipment and maintenance
We are a manufacturer that can support complete lining projects and replacement of worn parts. Customers can order standard tiles or request specific sizes for maintenance work, and we can provide them in a timely manner.

5. Quality control
We conduct third-party testing before each shipment. For overseas projects, customers can also confirm the required grade, size, quantity, and inspection requirements before production.

Products show

FAQ

1. Which devices can use alumina ceramic lining?
Typical applications include pipelines, cyclone separators, hoppers, discharge sections, and material handling equipment in industries such as cement, coal, power generation, metallurgy, petroleum, and chemical processing.

2. Which grade of alumina should I choose?
We have lining bricks and ZTA options with 92%, 95%, and 99% alumina content in HUAO. The appropriate content depends on the material being processed, the level of impact, the installation location, and the required usage conditions.

3. What tile shapes are available for selection?
The available formats include mosaic, hexagonal, and regular tiles. We support customization of content, size, and shape.

How to determine the required thickness?
The thickness should be considered together with the wear location, particle size, impact strength, and available installation space. The high impact area may require a different configuration from the part primarily exposed to sliding wear. Our technical team will analyze which one is more suitable for you.