The ore in the Dexing Copper Mine can be divided into porphyry and phyllite type ore according to the type of ore body rock. The ratio of ore volume is 1: 3. In the mining area, there are three industrial types of oxidized ore, mixed ore, and primary sulfide ore. The sulfide ore is the main type and accounts for more than 99% of the mass. The hardness of Dexing copper ore is generally between f = 5 8, which belongs to medium hard ore. The average compressive strength of the phyllite type ore is 84.8 MPa, and the average compressive strength of the granodiorite type ore is 109.2 MPa.
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The key step of wear failure analysis is to analyze the morphology of the wear surface, so the sample must be taken from the fresh wear surface of the wear debris. The moving cone we sampled was just removed from the cone crusher and shipped back in time. The broken cone crusher liner is cut into large samples by oxygen acetylene flame, and 4 samples are taken from top to bottom. The size of the sample should be such that the sampling site is not affected by heat. Then, through the wire cutting process, take out the sample at the center of the large sample for scanning electron microscope to observe the wear morphology. The size of the sample is about 10 mm × 10 mm × 10 mm, and one sample is taken to measure the change in microhardness from the surface inward. Observation of the specimen was performed on an S 2700 scanning electron microscope. Before observation by the electron microscope, the samples were cleaned with ultrasonic waves.
The three body abrasive wear is formed between the cone crusher mantle, cone crusher concave and the ground ore, and the surface of the liner is in a complex stress state. Under the action of huge spring compressive stress, the ore generates huge compressive stress on the local surface of the lining plate, and at the same time, the moving cone generates high shear stress at the same time. The two acts at the same time, which causes chiseling, cutting and extrusion of the lining plate. From the first picture Wear Morphology After Cone Crusher Liners Failure x100, The cone crushing motorized lining plate performs an eccentric rotation motion. When it is deflected to the fixed lining plate, it will give a huge impact load to the broken ore, causing the lining plate to be squeezed and plastically deformed. In the case of repeated repeated plastic deformation, the liner forms numerous squeeze pits, check the Wear Morphology After Cone Crusher Liners Failure x500. At the same...
According to the above analysis of wear morphology and wear mechanism, the cone crusher lining not only requires high surface hardness to resist ore chiseling and cutting but also requires high strength and toughness to improve resistance to huge impact loads and Low cycle fatigue ability, will not break and break. Therefore, the basic requirement for the material selection of the cone crusher liner is to increase the surface hardness as much as possible and to improve its resistance to cutting wear while ensuring that the liner does not crack. Due to the high plasticity and toughness of high manganese steel, and the unmatched high work hardening ability of other wear resistant materials, high manganese steel is still the material of choice for cone crusher linings. However, as the power of the crusher continues to increase, the crushing ratio increases and the ore grade continues to decrease, especially the Dexing Copper Mine is a lean ore, and it is generally difficult for high ma...
Udokan Copper Completes Installation of Coarse Ore Crusher. MOSCOW, Aug. 11, 2021 /PRNewswire/ Udokan Copper the company that develops one of the largest copper deposits in the world ...
Copper ore Crusher. Copper ore can be processed to copper concentrate or copper sand after beneficiation. There are many kinds of copper ores, such as pyritum, chalcopyrite, bornite, cyprite, chessylite, covellite and malachite. Copper ore can be used in metallurgical Industry and it is the main raw material of metallurgical Industry.
Copper ore is a mineral form in which the copper element is mainly in the form of compounds, and a few exist in elemental form. There are more than 200 kinds of copper bearing ores in nature, and common copper ores can be divided into three types: natural copper, sulfide ore and oxide ore.
Copper Ore Crushing Production Line, Mobile Crusher Machine for Processing. Crushing is the first stage in copper production operation; it aims to reduce the large lumps of raw materials into small particles.Jaw crusher, impact crusher, cone crusher or gyratory crushers are usually applied in copper crushing.