What is a classification crusher？
Classifying crusher is a kind of advanced equipment integrating crushing and classifying functions.
Structurally, it usually consists of feed inlet, crushing chamber, discharge inlet, transmission device and so on. The sturdy body can withstand huge impact and friction. The feed opening is reasonably designed, which is convenient to receive various sizes of ore materials. The crushing chamber is equipped with high-strength crushing tooth plate, which has excellent wear resistance and crushing capacity. The discharge opening can be adjusted according to the production requirements.
Working Principle of Graded Crusher
The working principle of the classification crusher is based on the combination of mechanical crushing and classification screening. During the crushing process, the ore is subjected to a variety of forces, such as extrusion, shear, impact, etc., and thus is crushed into particles of different sizes. At the same time, the grading device inside the equipment will screen the crushed ore, and the particles that meet the size requirements will be discharged in time, while the larger particles will continue to stay in the crushing chamber for further crushing until they reach the specified size. This kind of grading crushing not only improves the crushing efficiency, but also ensures the stability of product quality.
Wide application of graded crusher
1.Coal industry:
Raw coal can be crushed into different particle sizes to meet the needs of different users for coal particle size. For example, coal used for power generation usually needs to be crushed to a certain particle size to improve combustion efficiency.
For coal processing plant, the grading crusher can carry out preliminary crushing and grading of raw coal to provide raw materials with suitable particle size for the subsequent washing process, so as to improve the washing effect and coal quality.
2.Metal mining field:
Efficient crushing and classification of iron ore, copper ore, aluminium ore and so on. In iron ore mining, the grading crusher can crush the large iron ore into smaller particles, which is convenient for transport and further beneficiation.
For copper ore and aluminium ore, etc., the grading crusher can crush the ore to a specific particle size range according to different beneficiation process requirements, providing high-quality raw materials for the subsequent flotation, magnetic separation and other processes.
3.Non-metallic mining field:
It is used to crush limestone, gypsum, talc and other ores. In the building materials industry, crushed limestone can be used as an important raw material for cement production; gypsum can be used to make gypsum board and other building materials after crushing and processing.
Talc can be used in plastic, rubber, paint and other industries after crushing.Grading crusher can ensure the uniform particle size of talc particles and improve the quality and performance of products.
4.Chemical industry:
Some chemical raw materials need specific particle size to carry out the subsequent chemical reaction. Classifying crusher can crush the raw materials to the right particle size to improve the reaction efficiency and product quality.
For example, in fertiliser production, raw materials such as phosphate rock need to be crushed and graded before the next step of processing.
5.Environmental protection field:
In solid waste treatment, the grading crusher can crush and classify waste metals, construction waste, etc. to achieve the recycling of resources.
For some dangerous wastes, such as waste batteries, etc., the grading crusher can crush them for safe treatment and reduce the pollution to the environment.
Advantages of Graded Crusher
High-efficiency crushing capacity
Graded crusher is capable of crushing ores and other materials to the required size in a short time. Its unique structural design and working principle make the crushing process more rapid and efficient. Compared with the traditional crusher, it can greatly improve the production efficiency, saving time and cost for enterprises.
Uniform product size
The grading device inside the equipment can accurately screen the crushed materials to ensure that the output is of uniform particle size. This is very favourable to the subsequent processing and treatment, for example, in the process of ore dressing, it can improve the efficiency and precision of ore dressing; in the production of building materials, it can make the product quality more stable and reliable.
Third, energy saving and environmental protection
1.Low noise: the noise generated during the working process is relatively small, which reduces the noise pollution to the working environment and neighbouring residents. This is not only conducive to the health of the operators, but also meets the requirements of environmental protection.
2.Low dust: Through optimised design and the use of advanced sealing technology, the generation and emission of dust is effectively reduced. It reduces the pollution to the air environment and also reduces the loss of materials.
3.Low energy consumption: Due to its efficient crushing and classification function, it can reduce energy consumption to a certain extent. Compared with the traditional crusher, the grading crusher can usually save energy and reduce production cost under the same crushing task.
Strong adaptability
1.Wide range of applicable materials: it can be applied to coal, metal ores, non-metallic ores and many other different types of material crushing, whether it is a high hardness ore or brittle materials, can be effectively crushed and graded.
2.Adapt to different production scales: Whether it is a large mining enterprise or a small processing plant, you can choose the right type of grading crusher according to the actual demand, to meet the requirements of different production scales.
3.Convenient operation and maintenance
4.Relatively simple structure, easy to operate: the operator can master the operation method of the equipment after simple training. The equipment is usually equipped with advanced automation control system, which can realise remote monitoring and operation, improving the safety and convenience of work.
5.Low maintenance cost: The high-strength crushing plate and sturdy body have good wear resistance and durability, which reduces the number of repairs and maintenance cost of the equipment. Meanwhile, it is relatively convenient to replace the wearing parts of the equipment, which shortens the maintenance time and improves the utilisation rate of the equipment.
The following factors can affect the effectiveness of a grading crusher：
1.Material hardness: the higher the hardness of the material, the greater the difficulty of crushing. For materials with higher hardness, it is necessary to choose a classified crusher with higher crushing force and wear resistance to ensure good crushing effect.
2.Material humidity: The humidity of the material will affect its fluidity and adhesion. Materials with high humidity will be easily bonded to the crushing chamber and classifying device, which will affect the normal operation of the equipment and the crushing effect. Therefore, for materials with high humidity, it is necessary to take corresponding moisture-proof measures, such as heating and ventilation.
3.Material particle size distribution: the particle size distribution of the material will affect the processing capacity and product quality of the grading crusher. If the material contains too many large pieces of material, it will increase the load of the equipment and reduce the crushing efficiency; if the material contains too much fine powder, it will affect the grading effect and reduce the product quality. Therefore, before feeding, the material needs to be properly pre-treated, such as screening, crushing, etc., to ensure that the particle size distribution of the material meets the requirements of the equipment.
4.Feeding speed: too fast feeding speed will lead to overloading of the equipment and reduce the crushing efficiency; too slow feeding speed will affect the processing capacity of the equipment. Therefore, it is necessary to reasonably adjust the feeding speed according to the specification and performance of the equipment to ensure stable operation and efficient crushing.
Maintaining the grading crusher
1.Equipment cleaning:
Regularly clean the appearance of the grading crusher to remove dust, oil and other impurities and keep the appearance of the equipment tidy. You can use a clean rag or compressed air for cleaning.
Clean the inside of the crushing chamber to prevent the accumulation of material residues, which will affect the normal operation of the equipment. When cleaning the crushing chamber, the power supply of the equipment should be turned off first and make sure the equipment is in a safe condition.
2.Check the fastening parts:
Regularly check whether the fastening bolts and nuts of the equipment are loose, and if they are loose, they should be tightened in time. Especially the fixing bolts of the crushing plate inside the crushing chamber should be inspected to make sure they are fastened reliably.
Check whether the connecting bolts of the coupling, pulley and other parts of the transmission device are loose, if loose, they should be adjusted in time.
3.Lubrication and maintenance:
Regularly lubricate the various lubrication parts of the equipment in accordance with the requirements of the equipment manual. For example, add appropriate amount of lubricating oil or grease to bearings, gears and other parts.
4.Inspection of wearing parts:
Regularly check the wear and tear of wearing parts such as crushing tooth plate and side guard plate. When the wearing parts are worn to a certain degree, they should be replaced in time to ensure the crushing effect and operating efficiency of the equipment.
Check the wear and tear of the belt, chain and other parts of the transmission device, and replace them in time if they are worn out.
5.Check the electrical system:
Regularly check the electrical system of the equipment, including the motor, controller, sensor and other parts. Check whether the electrical wiring is broken, short-circuit and other problems, if any problems should be repaired in time.
Check the operation of the motor, including whether the temperature, current, speed and other parameters of the motor are normal. If there is any abnormality, it should be shut down in time for inspection and troubleshooting.
6.Equipment adjustment:
Regularly check whether the crushing gap, grading accuracy and other parameters of the equipment meet the requirements. If there is any deviation, it should be adjusted in time to ensure the crushing effect and product quality of the equipment.
Check the transmission device of the equipment, including the tension of the belt, chain tension and so on. If there is any non-conformity, adjust it in time to ensure the normal operation of the transmission device.
As an important equipment in the field of mining industry, grading crusher has made great contribution to the development of mining industry with its high efficient crushing capacity, even product size, energy saving and environmental protection, as well as wide range of applications. With the continuous progress of science and technology, the grading crusher is also constantly innovating and developing. Modern grading crusher adopts advanced automation control technology, which can realise remote monitoring and operation, and improve the stability and reliability of the equipment. At the same time, the degree of intelligence of the equipment is also improving, according to different ore properties and production requirements automatically adjust the working parameters to achieve the best crushing effect.
