Wear of the jaw crusher liner is a common and important problem, which directly affects the performance and service life of the crusher. The following is a detailed analysis of the wear of the jaw crusher liner:
1. Causes of wear of the jaw crusher liner
① Material properties:
The properties of the crushed material, such as hardness, humidity, mud content, etc., have a direct impact on the wear of the liner. Materials with high hardness are more likely to cause wear on the liner.
② Liner material:
Improper selection of liner material or poor quality will accelerate wear. Materials with poor wear resistance are easily damaged during the crushing process.
③ Motion of the movable jaw:
The movement trajectory and speed of the movable jaw will affect the relative movement and force conditions between the material and the liner. Unreasonable movement conditions will aggravate the wear of the liner.
④ Installation and tightening:
Improper installation or loose tightening of the liner will cause the liner to loosen or fall off during operation, thereby aggravating wear.
⑤ Crusher structure and design:
Irrational structural design of the crusher or improper parameter selection will also lead to aggravated wear of the liner. For example, the shape of the crushing chamber and the size of the discharge port will affect the crushing effect of the material and the wear of the liner.
⑥ Operation and maintenance:
Improper operation, such as excessive and uneven feed particles, will increase the wear of the liner. At the same time, a lack of regular maintenance and care will also accelerate the wear of the liner.
2. Impact of liner wear on jaw crusher
① Reduce crushing efficiency:
After the liner is worn, the crushing efficiency of the crusher will decrease, because the worn liner cannot effectively crush the material.
② Increase energy consumption:
A worn liner will increase the operating resistance of the crusher, thereby increasing energy consumption.
③ Shorten equipment life:
The liner is one of the important components of the crusher, and its wear degree directly affects the overall life of the crusher.
④ Increase maintenance cost:
Frequent replacement of worn liners will increase the maintenance cost of the equipment.
3. Measures to reduce jaw plate wear
① Choose materials with strong wear resistance:
When purchasing or replacing the liner, materials with high hardness, strong toughness, and good wear resistance should be selected. For example, high manganese alloy linings are widely used due to their good wear resistance.
② Optimize installation and fastening:
When installing the lining, ensure that it is flat and firmly fixed on the crusher. If necessary, a layer of material with good plasticity can be placed between the lining and the machine's surface to reduce friction.
③ Control feed size:
Strictly control the feed size to avoid too large or too small materials entering the crusher. Generally speaking, the feed size should be controlled within 85% of the feed port size.
④ Regular maintenance and care:
Periodically maintain and care for the crusher, check the wear of the lining and replace it in time. At the same time, keep the crusher clean and lubricated to reduce wear.
⑤ Optimize crusher structure and design:
Optimize the performance of the crusher and reduce the wear of the lining through reasonable structural design and parameter selection. For example, optimize the shape of the crushing chamber, adjust the size of the discharge port, etc.
⑥ Operation specifications:
Operators should strictly follow the operating procedures to avoid improper operation that causes increased wear of the lining.
The wear of the jaw crusher lining is a complex issue, and it is necessary to reduce its wear from multiple aspects. By selecting suitable materials, optimizing installation and fastening, controlling feed size, regular maintenance and servicing, and optimizing crusher structure and design, the service life of the lining can be effectively extended and the overall performance of the crusher can be improved.
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. We can offer you a free design and completed solutions according to your project.
Baichy Heavy Industry has grown into a high-tech mining equipment comprehensive enterprise, integrating R&D, manufacturing, sales, and after-sales service, Passing ISO9001:2015 quality management system certifications. The main products are mobile jaw crushing plants, construction waste crushing plants, PE jaw crushers, VSI sand-making machines, Symons cone crushers, single-cylinder hydraulic cone crushers, PCX high-fine crushers, grinding mills, ball mills, and full sets of beneficiation equipment with an excellent level.
