Mills
Grinding is an important stage in the mineral processing process in the mining industry. At this stage, the raw material is prepared for further processing steps such as classification, flotation and beneficiation.
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Types of mills
In the mining industry, different types of mills are used to grind rocks and minerals. Here are the main types of mills used in this field:
Mechanical crushing and grinding of materials using two rotating rollers that compress and tear the raw material, ensuring its fine grinding.
Grinding of material between rotating rollers and a fixed disk, which ensures high efficiency and uniform grinding.
Rotation of the drum, in which the balls move freely and, hitting the walls and each other, crush the material to the desired fraction.
Mechanical grinding of materials due to the interaction between rotating pins and stationary elements, which allows for efficient crushing and dispersion of powders.
Vertical roller mill
The vertical roller mill is designed to work with pulverized coal, non-metallic ores and slag, as well as for grinding other rocks. This multifunctional equipment performs four tasks at once: grinds raw materials, dries them, sorts them and transports the finished product to the receiving site.
Advantages of the mill:
Advantages of the mill:
- Compact dimensions — the equipment takes up half the space of a ball model.
- Slow wear and high productivity.
- Energy saving.
- High grinding speed.
- No mechanical impurities in the powder (wear products) — all contaminants are filtered out during operation.
- Low noise level and minimal vibration.
- Protection against dust spread — the equipment is hermetically sealed, so dust does not get into the air.
- Remote control option.
Operating principle:
- The material enters the grinding plate, which rotates with the help of a motor.
- The raw material moves from the center of the plate to its edges and passes through the grinding area.
- The particles are processed with the help of rollers.
- The fine powder is blown out and falls into a special collector.
- Large particles return to the grinding plate.
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Raymond's Vertical Mill
The Raymond Vertical Mill is designed to work with pulverized coal, non-metallic ores and slag, as well as for grinding other rocks. This multifunctional equipment performs four tasks at once: grinds raw materials, dries them, sorts them and transports the finished product to the receiving site.
Advantages of the mill:
Advantages of the mill:
- Compact dimensions—the equipment takes up two times less space than the ball model.
- Slow wear and high productivity.
- Energy saving.
- High grinding speed.
- No mechanical impurities in the powder (wear products)—all contaminants are filtered out during operation.
- Low noise level and minimal vibration.
- Protection against dust spread—the equipment is sealed, so dust does not get into the air.
- Remote control option.
Operating principle:
- The material enters the grinding plate, which rotates with the help of a motor.
- The raw material moves from the center of the plate to its edges and passes through the grinding area.
- The particles are processed with the help of rollers.
- The fine powder is blown out and falls into a special collector.
- Large particles return to the grinding plate.
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Ball and rod mills
Timitec has developed continuous dry and wet rod and ball mills that cover a wide range of applications in the minerals industry, focusing on particle size reduction and the production of fine and ultrafine powders.
These ball mills can operate in closed circuit with air separators, air classifiers or hydrocyclones, forming an efficient micron grinding line. The particle size and fineness of the produced powder depend on the hardness of the feedstock and can be achieved with the right design to match the material characteristics.
In addition, we can also manufacture continuous wet rod and ball mills. These mills are suitable for a variety of industries, including mineral powder plants, chemical industries and beneficiation plants.
These ball mills can operate in closed circuit with air separators, air classifiers or hydrocyclones, forming an efficient micron grinding line. The particle size and fineness of the produced powder depend on the hardness of the feedstock and can be achieved with the right design to match the material characteristics.
In addition, we can also manufacture continuous wet rod and ball mills. These mills are suitable for a variety of industries, including mineral powder plants, chemical industries and beneficiation plants.
Lining
Mills can be lined with steel, rubber or ceramic plates. The lining is selected in accordance with the requirements for the final product, as well as taking into account the size and hardness of the source material.
Parameters of mills with ceramic lining:
Lining materials:
Ceramic plates provide excellent wear resistance and chemical resistance.
Application:
Ideal for processing materials sensitive to contamination such as pharmaceuticals and food products.
Advantages:
Lining materials:
Ceramic plates provide excellent wear resistance and chemical resistance.
Application:
Ideal for processing materials sensitive to contamination such as pharmaceuticals and food products.
Advantages:
- High hardness and durability.
- Low noise level during operation.
- Resistance to corrosion and chemical influences.
Parameters of mills with steel lining:
Lining materials:
Steel plates provide a high level of strength and durability.
Application:
Suitable for processing hard and abrasive materials.
Advantages:
Resistance to mechanical damage, ability to work in harsh conditions.
Lining materials:
Steel plates provide a high level of strength and durability.
Application:
Suitable for processing hard and abrasive materials.
Advantages:
Resistance to mechanical damage, ability to work in harsh conditions.
Pin mills KPM
The feed material is fed into the center of the rotor and transported to the periphery via the sequential reader plate. During the grinding process, the material is gradually converted into a fine powder. A screen drum installed around the rotor allows the ground material to exit the mill at the desired size, ensuring the collection of important technical information.
The premium pin mill is specially designed for efficient and economical processing of a wide range of materials, from coarse to fine powders of up to 100-300 microns and more. To obtain very fine powder, these mills are equipped with a separation system.
The premium pin mill is specially designed for efficient and economical processing of a wide range of materials, from coarse to fine powders of up to 100-300 microns and more. To obtain very fine powder, these mills are equipped with a separation system.
Construction:
Large pin mills have: A suitable sized hopper, A screw feeder, A magnet to remove metallic impurities, An outlet with a rotating grinding plate, A main shaft mounted on a bearing housing.
These mills can be mounted either on a platform or as part of a system. The mill output is transported mechanically or pneumatically for further processing.
Large pin mills have: A suitable sized hopper, A screw feeder, A magnet to remove metallic impurities, An outlet with a rotating grinding plate, A main shaft mounted on a bearing housing.
These mills can be mounted either on a platform or as part of a system. The mill output is transported mechanically or pneumatically for further processing.
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