The crushing machinery wears itself during processing of the ore. In order to minimize the loss of parts, one must adhere to a scientific choice of models; the second is the rational use and selection. Technicians suggest that, once improperly selected, serious ones will cause long-term passive production at the factory, while lighter ones will also cause frequent consumption.
The basis for the scientific selection of models is to have a comprehensive and in-depth understanding of the origin of the raw materials processed. Including understanding of the physical and mechanical properties of ore and entrainment in various layers of the deposit, sampling and processing tests, combined with the local natural climatic conditions, factory production process requirements for ore inlet and outlet particle size, etc., to make the right model selection.
The crusher works differently, so the characteristics of the machine are very different and need to be studied in conjunction with the characteristics of the ore in use, including differences in the characteristics of the ore in different layers. When there are multiple selection schemes, it is also necessary to make a final selection conclusion based on one-time investment and long-term consumption.
Broken material consumption is related to many factors. Hammer head, for example, its life is related to the following four factors: First, the physical properties of minerals and associated biological properties (abrasiveness of the metal, soil content, moisture, viscoplasticity, compressive strength, etc.); Is the rationality of the internal structure of the machine; Third, the correctness of the hammer head material selection and manufacturing quality; Fourth, the operation method. The first one is objective existence. It is congenital and needs correct understanding in advance. The second is to adapt to the nature and process requirements of the material being processed, and the internal processing of the machine is required to prevent the occurrence of abnormal excessive wear. The third issue is material selection. At present, the single-stage hammer crusher has high-manganese steel (including high-manganese alloy, super-high manganese steel with alloying elements, and alloyed high manganese steel with a wear-resistant coating on the surface). Steel) Medium carbon alloy steel (including hammer hardness HRC55-58, parent 39, double hardness hammer with impact toughness> 240j); bimetal composite (head is high chromium cast iron, HRC>61, shank is Chromium-molybdenum alloy steel, HB225-310); High-manganese steel inlaid with carbide. Medium hard brittle limestone, when the abrasiveness is not high, the main use of high-manganese steel hammer head, when the abrasive is high or the material mixed with sandy soil is more, the cold hardened layer of high manganese steel hammer head is difficult to form And keep it, the effect is not good, should not be used. Coal and gypsum are also superior to high manganese steel hammers in the use of medium carbon alloy steel hammers. The fourth item is the use and operation method of the crusher. The adjustment of the dice and the flanging of the hammer are timely and untimely. The effect is very different. At present, individual factories do not even flanging or adjusting, allowing them to rub in the excessively large space accumulation layer formed by the rake and the rotor, and the life of the wear-resistant material will not be long. Therefore, it is necessary to establish a system and use it meticulously in order to extend the life of the parts and achieve the energy saving, consumption reduction and emission reduction of the cement mines.
The basis for the scientific selection of models is to have a comprehensive and in-depth understanding of the origin of the raw materials processed. Including understanding of the physical and mechanical properties of ore and entrainment in various layers of the deposit, sampling and processing tests, combined with the local natural climatic conditions, factory production process requirements for ore inlet and outlet particle size, etc., to make the right model selection.
The crusher works differently, so the characteristics of the machine are very different and need to be studied in conjunction with the characteristics of the ore in use, including differences in the characteristics of the ore in different layers. When there are multiple selection schemes, it is also necessary to make a final selection conclusion based on one-time investment and long-term consumption.
Broken material consumption is related to many factors. Hammer head, for example, its life is related to the following four factors: First, the physical properties of minerals and associated biological properties (abrasiveness of the metal, soil content, moisture, viscoplasticity, compressive strength, etc.); Is the rationality of the internal structure of the machine; Third, the correctness of the hammer head material selection and manufacturing quality; Fourth, the operation method. The first one is objective existence. It is congenital and needs correct understanding in advance. The second is to adapt to the nature and process requirements of the material being processed, and the internal processing of the machine is required to prevent the occurrence of abnormal excessive wear. The third issue is material selection. At present, the single-stage hammer crusher has high-manganese steel (including high-manganese alloy, super-high manganese steel with alloying elements, and alloyed high manganese steel with a wear-resistant coating on the surface). Steel) Medium carbon alloy steel (including hammer hardness HRC55-58, parent 39, double hardness hammer with impact toughness> 240j); bimetal composite (head is high chromium cast iron, HRC>61, shank is Chromium-molybdenum alloy steel, HB225-310); High-manganese steel inlaid with carbide. Medium hard brittle limestone, when the abrasiveness is not high, the main use of high-manganese steel hammer head, when the abrasive is high or the material mixed with sandy soil is more, the cold hardened layer of high manganese steel hammer head is difficult to form And keep it, the effect is not good, should not be used. Coal and gypsum are also superior to high manganese steel hammers in the use of medium carbon alloy steel hammers. The fourth item is the use and operation method of the crusher. The adjustment of the dice and the flanging of the hammer are timely and untimely. The effect is very different. At present, individual factories do not even flanging or adjusting, allowing them to rub in the excessively large space accumulation layer formed by the rake and the rotor, and the life of the wear-resistant material will not be long. Therefore, it is necessary to establish a system and use it meticulously in order to extend the life of the parts and achieve the energy saving, consumption reduction and emission reduction of the cement mines.