Industry selected online repair cement rotary kiln supporting wheel bearing wear problem

A, 1, rotary kiln, rotary kiln, the cement kiln in cement process function mainly is to calcine cement clinker, also used to calcine clay, limestone and stop slag drying, etc; Rotary kiln is referring to the rotary kiln, because of its operation state is rotating, commonly known as for rotary kiln, is the new dry process cement consumption, to adopt new technology of synthesis of consumption of cement kiln. Its consumption in suspension preheater kiln and the synthesis technology as the center, adopt new materials, fuel, homogenization and energy-saving grinding technology and equipped with, all using computer collecting and distributing control, complete the cement consumption process automation and high efficiency, high quality, low consumption, environmental protection. Rotary kiln structure according to figure 2, tug support installation the rotary kiln is an important local, in the process of their work he accept the full weight of the whole kiln cylinder and heat release of the rotary kiln is, and role positioning of kiln whole, make its smooth stop safely, so the wheel mechanism with the kiln body with precision accuracy and device itself is very high. Wheel spindle ordinary cooperate with semicircular shell transfer torque, but few have bearing fit ( This article analysis with bearing) And external environment like high temperature, so the roller smooth and cooling of the rotation of the installation request high. The normal operation of wheel mechanism is one of the important factors to ensure the normal operation of rotary kiln, once the roller system presents the problems that cannot be run, the entire system of rotary kiln has to stop, to prevent the onset of serious safe accidents. In roller device must make two requests; One is to ensure device after the center line of the roller body is a straight line; The second is to ensure that the same two roller by the force of the same size, the average both wheel wear. Second, the rotary kiln shaft problems ( Bearing wear) Bearing wear, bearing inner ring fracture 1) Equipment parameters of the rotary kiln size models: Φ 4. 0 * 50 m speed: 25 RPM material: carbon steel bearing a size: 460 * 250 wear condition: at about 3 mm, bearing a unilateral wear bearing inner ring fracture, equipment was forced to stop. Problem analysis: cement rotary kiln belting leather and roller material thermal resistance is poorer, long-term under high temperature, heavy load operation at the same time, combined with the working environment is relatively poor, common attack pitting corrosion spalling more serious damage or tiredness, roller surface once present pit, stress will lose balance between surface and surface; Will bring the external force to the bearing seat, the temperature is higher, after a long time will form the bearing wear. Contact roller and belting leather to produce very big Hertz stress, the stress is part of the high stress; Consumption equipment parts most of metal material, due to its high strength, high hardness, by impact and vibration in the process of running parts of other complex force often cause the metal parts produce 'hard to hard' relationship, with longer time, the local impact deformation of variable composition for eternity, restoring stress landing, incur relatively low hardness parts wear and tear, but poor concession of metal materials, such as not timely to find and take measures to form wear extended from time to time. 2) Traditional response weld machining, this method is the most common type of traditional methods, the characteristics of high repair process, the defects about the engineering of repairing such easy to form stress concentration or cause crack appeared, and processing is difficult, high cost compare with, comprehensive price compare with low; To change the new parts, but the long cycle compare, will affect the normal consumption of the enterprise. Three, polymer repair introduced ( The corresponding relation of parts to repair) 1, serious measurement of bearing wear, separation of drawings should be carefully checked before rear axle shoulder size, according to the practice of the wear condition of application of front axle shoulder design repair scale; 2, must support point positioning, high reputation and applied to repair the scale stop positioning; 3, air bearing, vertical and concentricity measurement; 4, stop appearance disposal, ensure the repair looks to clean, dry and strong requests; 6, daub after repair data directly assembled bearing ( Bearing inner ring with 803 release agent) ； 7, rapid distance set, thrust bearing and clamp, repair data can be used after curing. Four, five, the conclusion after the application of picture information and enterprise collaboration not only make the enterprise to save money, frugal Labour force, increase the using life of the equipment, make the enterprise capital are difficult to measure savings! And enterprises reach mutual trust and win-win relationship with our company, and represents the blessing the blue company and the advantages of professional in this field. Company for many years continuously to assist enterprises to set up an advanced maintenance team, the progress of enterprise equipment management level as our duty; Through integration of the world's first from time to time equipment maintenance maintenance technology, service for the enterprise.