Push rod of the common mechanical failure of the gas cooler and processing

Push rod of the common mechanical failure of the gas cooler and deal with 2019 - 12 - 10 Wang Zhanguang ( Jiaozuo strong cement) Mechanical ways, gas cooler in cement industry is a transportation equipment, because of its delivery is high temperature clinker, working environment is bad, and function of both heat exchange, is directly related to the heat recovery, so appear particularly important. Regarding the mechanical failure forms and methods of its operation, do a simple introduction. One, common mechanical failure of gas cooler gas cooler by the drive unit ( Hydraulic drive and mechanical drive) , crusher, gas bed ( Including grate plate, grate plate girder) And the shell ( Including refractory material) And equipping it with fan, etc. Common failure forms are the following: 1. Grate plate and compared three generations of machine, off the grate plate does not see more, so to speak. Its reason has the following kinds, the first is of grate plate and grate plate box joint bolt fracture, loose grate plate bottom, hold clinker particles, once the grate plate up to the great interference with activities, activities of rods is opportunity knocked off the grate plate. Inside the gas cooler card into the foreign body, such as there is foreign body between the activities between rods and grate plate, can give a walking beam is a large resistance, part of the resistance will be passed on to grate plate, rod before and after the move, as the activity of grate plate box beam with bolt will be pulled, so grate plate box may occur along with grate plate displacement or fall off. 2. Push rod rod and a fixed rod push rod fracture points activity, fracture is common. For the following reasons. First foreign body or large pieces of material of the block, when there is a foreign body, or large materials, such as foreign body in move between rods and activities running great space is limited, will be its crowded broken; If a foreign body activities under the rod, also can cause broken; And material reasons, if the defect parts is more, strength is insufficient, in the operation of the squeezed off easily. 3. Gas bed resistance big box girder and the surrounding grate plate first activity by installation clearance between its clearance leakage cause friction or material, aggregate indirect friction crushing. Second, activity guide wheel damage or longitudinal beams and longitudinal beam clearance is undeserved, cause walking trajectory is out of control, and grate plate box of friction interference. Improper activities between rods and grate plate gap, through material interference. Activities between rod and the fixed bar foreign body block, forward to back up, etc. 4. Gas cooler fall speed gas cooler fall speed is also more common, the first reason is leak, such as pipeline rupture or leak, due to insufficient oil amount, the piston down down or speed, if the leakage of oil, oil chamber before and after the same effect; Two proportional valve regulating improper or disorder, cause to reduce the amount of oil the oil cylinder, piston speed slow; Third, signal feedback problems, or because of the set or arising from poor contact or or outdated time delay feedback time, etc. At the same time the shortfall in oil can lead to a similar situation. 5. Hammer hammer out breaking out, the main reason is that large pieces of material or egg card dead or killed, cause motor over-current protection; The second is caused by the failures of motor or hammer broken itself. 6. Beam, pillar failure some push rod type beam pillar gas cooler is easy to crack, crack, beam and column bolt fracture, the main reason is running resistance is too large, the second is design strength is insufficient, loose fastening not timely, etc. Second, the push rod type gas cooler troubleshooting 1. Grate plate increasing grate plate box of stiffness and strength bolt and beam connections; Reasonable control rods and grate plate clearance; Control of clinker and grain; When suddenly become more gas bed resistance or resistance jump stopping time, must find out the reason, foreign body removal of gas bed, etc. 2. Push rod fracture push rod fracture more for foreign body card, when found resistance increased, jump stopping time, must be cleared eyewinker, prevent broken rod; Found that the fracture defects is more, should choose the better in the purchase of spare parts manufacturers, and make the acceptance, etc. 3. Gas bed resistance overhaul when installation, make sure longeron and grate plate box gap evenly reasonable; Ensure hydraulic cylinder parallel to the center line of the girder, avoid bouncing strength; Ensure that limit guide wheel, flexible and reliable; Control the grain of clinker, prevent big, foreign body block, etc. 4. Gas bed off speed control reduce resistance from various aspects, prevent delay jump stop for resistance reasons; Check whether the pipe leakage, I couldn't move, if the resistance is not big but should be in cylinder leaks, when dealing with internal seal; If I couldn't move out big resistance speed, should check the cause of resistance; Check and feedback related instrument and circuit; Check whether the proportional valve set is normal, check the mailbox oil level is normal, etc. 5. Hammer broken jump stop shall be itemized check whether the motor is damaged, hammer broken rotor disc whether foreign body jammed, check whether hammer broken bearing damage. 6. Column, beam fracture, fracture, if discover the column and beam should analyze the reason, eliminate hidden dangers, and replace the damaged parts or welding reinforcement. Conclusion: this paper analyses the push rod type gas cooler mechanical common failures, due to the limited level, the hard to avoid wrong, please correct me criticism. The next step the specific verification analysis of beam fracture reasons. Thank you very much!