Quality appraisal of counterattack crusher

impact crusher is a crushing equipment that can break hard materials such as ore, rock, coal, limestone, etc. into smaller particle sizes for better further crushing and crushing. The working principle of the impact crusher is to crush the material in a free-falling manner, throw the material into the hopper, and the hopper throws the material into the crushing chamber. The material is hit by the high-speed moving impact plate, and the material is broken into smaller particles, and then discharged from the discharge port.
impact crusher has a wide range of applications. It can be used in mining, petroleum, metallurgy, building materials, electric power, chemical industry, agriculture, light industry and other industries to crush various ores, rocks, coal, limestone and other hard materials, as well as crush various sand, gravel, silt, gravel and other soft materials.
In the case of impact crusher quality appraisal, Zhongke Testing can provide impact crusher quality appraisal services.

1. Blow hammer: The blow hammer is one of the main crushing parts of the impact crusher, so it is very important to identify the quality of the blow hammer. Check whether the material, hardness, weight and other indicators of the blow bar meet the design requirements, and whether the wear degree of the blow bar is reasonable.
2. Counterattack plate: The counterattack plate is also an important part of the impact crusher, and its quality has a direct impact on the crushing effect. Check the material, hardness, surface finish, thickness and other indicators of the counterattack plate to ensure that it meets the design requirements.
3. Air holes: Air holes are an important feature of the impact plate, which directly affects the crushing effect of the impact crusher. Check the number, size and distribution of air holes to ensure they meet design requirements.
4. Crushing effect: To test the crushing effect of the impact crusher, you can determine whether the crushing efficiency and particle size distribution of the impact crusher meet the requirements by screening and particle size analysis of the processed materials.
5. Operation stability: The operation stability of the impact crusher has an important impact on the continuous operation of the entire production line. Check whether the fit between various parts of the impact crusher is tight and whether there are problems such as looseness and vibration to ensure its operational stability.

GB/T 33937-2017 Hard rock impact crusher Energy consumption index
JB/T 13654-2019 Impact crusher Casting plate hammer Technical conditions
JB/T 6993-2017 Single rotor impact crusher
JB/T 3274-2017 Coal impact crusher
JB/T 2259-2017 Double rotor impact crusher
JB/T 10246-2015 Hard rock impact crusher

was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" with the impact crusher involved in the case.
appraisal analysis results:
appraisal analysis expert group discussed the relevant information and on-site investigation of the impact crusher involved in the case and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
The carbon content of the plate hammer material of the operating component of the impact crusher involved in the case exceeds the standard, there are casting pore defects, and the material hardness is low, which does not meet the requirements of relevant national and industry standards.