Crusher rotor bearing wear on-line repairing technology - bearing knowledge

Hammer crusher is also called dry broken, it is used for crushing and drying soft and abrasive materials, such as gypsum, chalk, clay, slurry filter cake, etc. , such as the industrial by-product gypsum, flue gas desulfurization gypsum were scattered, drying and calcining, the machine is high efficiency, low energy consumption, at the same time of drying is scattered and broken. Carbide slag cement is a cement clinker production by carbide slag instead of limestone, calcium carbide slag cement has the advantage of, on the one hand, using the carbide slag, lowered its long-term storage occupation of land environmental impact, such as, save containing limestone resources on one hand, on the other hand reduced CO2 emissions, is conducive to energy conservation and emissions reduction. In precalcining phase, ordinary Portland cement clinker mainly of limestone decomposition, and calcium carbide slag cement is the decomposition of the calcium hydroxide, so his lower CO2 emissions. But because of carbide slag is fine, grinding power is relatively low, with the need of calcium carbide slag water content high drying, so using carbide slag generally used drying hammer crusher. Hammer type drying crusher rotation of the rotor material will break up, hot material drying, air separation will have broken drying materials to room, fine powder into the cyclone tube separation, then coarse particle back into the hammer crusher broken again. From the perspective of the instance of repaired, some enterprise configuration drying PCG4828 hammer crusher, rotor diameter of 4800 mm, 2800 mm long, drive shaft and bearing for machine full load, good operation and the shaft and bearing equipment operation has a great relationship, it directly affects the service life of the machine and operation rate. Drying broken shaft and bearing is relying on the set to fixed, not only in the process of running under high temperature, and frequent under shock and vibration as the growth of the operation cycle, bearing and set the indirect impact on the formation axis, over time the original fastening force with metal fatigue, expansion factors such as loose, form fit clearance, bearing set under high load overloading and spindle formation caused by relative motion axis wear. Hammer stone drying crusher: type PCG4828, specification & Oslash; 28 mm * 4800 mm, the capacity of 120 t/h, rotational speed of 138 r/min, 480 h9 diameter of axle, bearing a 310 mm wide, bearing model 23184, 600, import set fit flue gas - The 120-730 ℃, export flue gas 100 ℃, bearing temperature 60 - 80℃。 Sauvy industrial baking carbon nano polymer materials to repair broken shaft wear technology according to the drying broken shaft neck size to determine the position of the sauvy caliper repair process combined with tight sleeves implement repair, site operation steps are as follows: 1, according to equipment structure and enterprise to provide the drawings before and after the preliminary judging by bearing a shoulder not wear position to position; 2, the scene outside micrometer was used to measure the front axle shoulder positioning size, processing the corresponding caliper; 3, bearing a fixed location for oil removal treatment; 4, caliper along the datum is used to determine the concentric; 5, using the set set of fitting, determine the basic size; 6, mixed right amount SD7104 materials, and evenly coated in the fix position closely; 7, set set of the lining after cleaning brush besmear SD7000 release agent; 8, the tight sleeve opening size increase, and quickly repair parts installed on the axis, using the set set of restoring the size as tooling, appropriate lock tight sleeve nut. 9, after curing materials, demolition of set set, check fix size; 10, along the basic size of the defect parts again after repair coating SD7104 material, size until recovery; 11, size recovery after continued use set set for fitting, remove high until the assembly in place; 12 and repair parts coated again SD7104 materials, set set of brush besmear after demoulding agent installed; 13, bearing heated to 120 degrees Celsius and fastening nut assembly, according to the requirement to measure the clearance. Sauvy industrial repair double drive bucket driving wheel bearing wear case pictures