The base of the grate cooler hydraulic cylinder drive technological transformation

Grate cooler, technical modification of the hydraulic cylinder drive base - 2020 11 - 14 YuHuiBang ( Continent dam charr cement co. , LTD. ) A company of 5000 t/d production line used NC42340 grate cooler, since its launch in September 2009, grate cooler hydraulic cylinder drive base failure led to stop for a long time, which affect clinker production, in 2013, according to the problem, to drive the base is reformed. A, the problems existing in the original grate cooler adopts hydraulic cylinder base iron, when used for the hydraulic cylinder piston rod to push the slider back and forth axis moving, base stress cracks on very easy, even appear rupture phenomenon. Hydraulic cylinder shaft and the base hole is round hole, the original design due to mechanical wear, wear base hole, hydraulic cylinder shaft in promoting the long-term shaking, both with worse and worse, cause when used by the hydraulic cylinder, hydraulic cylinder shaft impact hole wall, the hydraulic cylinder is easily damaged; Shorter hydraulic cylinder stroke, the grate cooler grate plate stroke affected, thus affect the clinker cooling effect. Second, the reform measures in view of the existing problems, and we are on the base of the hydraulic cylinder hole, figure 1 for hydraulic cylinder seat before and after the transformation. The base hole before modification is round; After transforming the base changes for the circular hole. Figure 2 for hydraulic cylinder shaft before and after the transformation. After transforming hydraulic cylinder base material using cast steel. Round hole to change the original base for the circular hole, reduce the activity of the hydraulic cylinder shaft hole in the base, the hydraulic cylinder shaft correspondingly changed, is no longer a full round on both ends of the shaft, changed to circular arc form, it reduces the hydraulic cylinder shaft and the base hole of wear and tear each other to ensure the base of the possibility of use for a long time. Purpose is to avoid due to the irrationality of the hydraulic cylinder base structure design of the adverse consequences, to improve the hydraulic cylinder, hydraulic cylinder base is easy to break easily damaged and grate cooler trip does not reach the designated position, to achieve efficient operation of clinker cooling and grate cooler. Figure 1 modification before and after the hydraulic cylinder hydraulic cylinder shaft seat figure 2 before and after the modification, the conclusion after modification, the hydraulic cylinder base didn't appear rupture, hydraulic cylinder in the process of pushing back and forth no jitter and affects problems such as limit switches, greatly improved the grate cooler operation rate. Source: 'China cement' 04, 2019