Your Professional Special Ball Mill Supplier
AGICO Cement International Engineering Co., Ltd. is a leading company in China's building materials machinery industry. Founded in 1997, the company is based in a 66,000-square-meter industrial park, with 30,000 square meters of modern workshop space. It has a registered capital of 81.34 million yuan and employs 230 staff, including 42 experienced technical professionals with mid to senior-level qualifications.
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Why choose us
Our Certificate
The company has passed ISO, CE, picture: ISO1, ISO2, AAA, ce, CQC, PT quality management system certification and has independent import and export rights.
Production Market
Our products are sold across 27 provinces in China and exported to countries such as Brazil, Angola, Vietnam, and Mongolia, thanks to our independent import and export rights.
Quality Assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.
Service Advantages
We provide market analysis, demand assessment, equipment selection guidance, and project design to ensure the equipment meets your specific needs.including installation guidance, maintenance, spare parts supply, training, and troubleshooting services to ensure long-term operational success.
Semi Autogenous Grinding Mill
A semi-autogenous mill is a type of grinding mill that uses grinding balls and ore or rock fragments as grinding media. The grinding is done by the impact of the rocks or ore particles on themselves or on the grinding media, thus breaking the ore into smaller particles.
|
Mill |
Model |
Roller No. |
Roller Size (Mm) |
Grind Ring Inner Dia. Height & Length(Mm) |
Feeding Size (Mm) |
Output Size (Mm) |
Capacity (T/h) |
Power (Kw) |
Overall Dimension (Mm) |
|
3R |
1510 |
3 |
150*100 |
570*100 |
15 |
0.125-0.044 |
0.8-10 |
7.5 |
3200*1200*3800 |
|
2115 |
3 |
210*150 |
630*150 |
15 |
0.125-0.044 |
1-12 |
15 |
3500*3300*4500 |
|
|
2615 |
3 |
260*150 |
780*150 |
20 |
0.125-0.044 |
1.5-20 |
18.5 |
4650*3600*5100 |
|
|
2715 |
3 |
270*150 |
830*150 |
20 |
0.125-0.044 |
2-28 |
22 |
4700*3600*5100 |
|
|
3015 |
3 |
300*150 |
875*150 |
25 |
0.125-0.044 |
2-35 |
30 |
5300*4100*5200 |
|
|
4R |
3016 |
4 |
300*160 |
890*160 |
25 |
0.125-0.044 |
3-36 |
30 |
5400*4100*5200 |
|
3216 |
4 |
320*160 |
970*160 |
25 |
0.125*0.044 |
4-45 |
37 |
7100*5900*7900 |
|
|
3220 |
4 |
320*200 |
970*200 |
25 |
0.125-0.044 |
4-55 |
45 |
9900*5800*1058 |
|
|
5R |
4119 |
5 |
410*190 |
1270*190 |
30 |
0.613-0.044 |
8-60 |
75 |
9200*7250*9700 |
Advantages ofRaymond Mill Machine
High Efficiency
Raymond mills are known for their high grinding efficiency, achieving fine and ultra-fine particles with a minimal amount of energy consumption. The fine particles produced by Raymond mills are suitable for use in a wide range of industrial processes.
Versatility
The Raymond Roller Mill can handle a variety of materials, from minerals like limestone, barite, and gypsum to other materials such as coal, clay, and cement. Its versatility allows it to be used in a broad spectrum of industries, including mining, construction, and chemical processing.
Consistent Particle Size
The mill produces a consistent, uniform particle size distribution, which is crucial for various industrial processes. This ensures that products meet the required specifications for use in subsequent operations.
Cost-Effective
Compared to other grinding mills, Raymond Roller Mills are relatively cost-effective in terms of both initial investment and operational costs. They have lower energy consumption and reduced maintenance requirements, making them a more affordable long-term option.
Compact Design
Raymond mills are compact and take up less space than other types of mills, making them ideal for facilities with limited space.
Ease of Operation and Maintenance
These mills are relatively easy to operate, with a simple design that makes them easier to maintain and repair. This results in less downtime and improved productivity in industrial settings.
Enhanced Control of Grinding Process
Raymond mills offer greater control over the grinding process, allowing for precise adjustments of the product's fineness. This feature is especially useful for industries where product quality is critical.
Environmental Benefits
With its enclosed design, the Raymond Roller Mill minimizes dust emission and noise pollution, making it more environmentally friendly compared to other milling equipment.
Durability
Raymond mills are designed for heavy-duty use and have a long service life when properly maintained. The robust design of the grinding components ensures durability even under continuous operation.
Types of Semi-Autogenous Mills
Conventional Semi-Autogenous Grinding (SAG) Mills
Conventional SAG mills use steel balls as the primary grinding media to break down the material. The balls are fed into the mill and rotate, crushing the material until it is small enough to pass through the mill’s discharge grates. The main advantage of conventional SAG mills is their simplicity, making them easy to operate and maintain. They are also highly efficient, with typical power draw ranging from 2.5 to 7 MW.
High-Pressure Grinding Rolls (HPGR)
High-pressure grinding rolls (HPGR) are another type of semi-autogenous mill used in the mining industry. They use two counter-rotating rollers to crush the material, which is then fed into the mill through a feed chute. The rollers apply high pressure, reducing the particle size and creating a fine product. HPGRs are known for their energy efficiency, with power draw typically ranging from 2 to 20 MW. They are also popular for their ability to process harder materials, making them an ideal choice for high-pressure grinding applications.
Autogenous Mills
Autogenous mills are a type of semi-autogenous mill that does not use grinding media like steel balls or rods. Instead, they rely on the material itself to break down into smaller particles, typically using a large rotating drum filled with the material. The main advantage of autogenous mills is their ability to handle more significant variations in feed material, making them suitable for processing a wide range of ores and minerals. However, they are less energy-efficient than other types of semi-autogenous mills, with typical power draw ranging from 5 to 25 MW.
Pebble Mills
Pebble mills are another type of semi-autogenous mill commonly used in the mining industry. They use small, rounded pebbles as the grinding media to crush the material, similar to how a ball mill works. Pebble mills are known for their energy efficiency, with power draw ranging from 0.5 to 5 MW. They are also popular for their ability to handle more significant variations in feed material, making them ideal for processing ores with varying properties.
Applications of Raymond Mill Machine
Papermaking industry
Wollastonite is usually used as filler for cigarette paper, filter paper, deodorizing paper, packaging paper, and decorative paper after being processed by Raymond mill, which can reduce raw material consumption and improve paper performance.
Metallurgical industry
Raymond mill is widely used in powder metallurgy, mechanical alloying, metallurgical raw material processing, metallurgical waste slag utilization, casting sand and gravel, superhard materials, solid lubricants and other fields.
Building materials industry
The important parts of Raymond mill are made of high-quality steel, and the wear-resistant parts are made of high-performance wear-resistant materials to ensure the reliable operation of construction waste recycling.
Chemical industry
Raymond mill can be used to process gypsum powder, talcum powder, titanium dioxide, bone powder, shell powder, carbon black powder, coal powder, various rubber powders, alum and other chemical powders.
Working principle of SAG Mill
This design makes it have the characteristics of high processing capacity, low energy consumption, and strong adaptability. It is particularly suitable for the coarse grinding of hard ores such as gold, copper, and iron.
Ore autogenous grinding:
Large pieces of ore collide and rub against each other in the mill to achieve initial crushing.
Steel ball assisted grinding
Add a small amount of steel balls (usually 8%-15% of the mill volume) to enhance the impact force and grinding effect.
Grading discharge
The crushed slurry is discharged through the discharge end, and the ore that does not meet the fineness requirements continues to be circulated and ground.
Structural composition of semi-autogenous mill
Cylinder
A large rotating steel cylinder lined with wear-resistant materials (such as rubber or alloy linings).
01
Feed end
Ore and steel balls enter the mill from here.
02
Discharge end
Equipped with screen plates or grating plates to control the particle size of slurry discharge.
03
Drive system
Motor + reducer + gear transmission to provide stable power.
04
Lubrication and cooling system
Ensure long-term stable operation of the equipment.
05
SAG Mill Operation
SAG mills operate differently from ball mills, which rely on the impact of balls to break down the material. SAG mills use a combination of impact and attrition to grind the material. The grinding media in a SAG mill are larger than in a ball mill, and there are fewer of them per ton of ore. The larger grinding media also contributes to a coarser grind, which is beneficial for downstream processes like flotation.
SAG mills are typically operated at a constant speed, with the feed rate controlled by the mill weight. The mill weight is measured by load cells or a strain gauge, and the controller adjusts the feed rate accordingly. SAG mills can be operated in open or closed circuit, depending on the downstream process requirements.
Maintenance of a SAG Mill
The maintenance of a SAG mill is critical to its operation and longevity. Regular inspection and maintenance of the mill components, including the liners, trunnion bearings, and gears, can prevent costly downtime and repairs. The mill should be inspected on a regular basis to identify any wear or damage to the components, and repairs should be carried out promptly.
FAQ
As one of the most professional special ball mill manufacturers in China, we're featured by quality products and good price. Please feel free to buy high-grade special ball mill for sale here from our factory.
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