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KZL4-13链条炉排卧式快装锅炉的煤渣是由螺旋出渣器送走的。出渣器底部轴承的结构如图1,在使用中发现橡皮垫圈无法阻挡煤渣的浸入,致使轴和轴承很快磨损,出渣器内的水从底部流出使出渣器下半部全部浸泡在水内,腐蚀严重。现设想搞了只水静压轴承。图2为水静压轴承系统原理图。水由水泵泵出,一路经过节流器进入轴承水腔把轴抬起,水再从封水面进入水槽流出;另一路水经过阀门把压力控制在2～3大气压(0.2～0.3MPa)内,然后进入轴承体内的4个孔,再从轴承端面喷出,挡住煤渣的浸入。结构如图3。经过观察和一段时间的运行,该设想是可行的,对延长设备的寿命,减少维修起到了一定的作用。
KZL4-13 chain grate Horizontal fast boiler cinder is sent by the spiral slag discharge device. Slag bottom bearing structure shown in Figure 1, the use of rubber washers found in the impede can not stop the immersion, resulting in shaft and bearing wear quickly, the slag out of the bottom of the water from the bottom so that the lower part of the slag fully immersed in Water, serious corrosion. Now imagine engage in hydrostatic pressure only water bearing. Figure 2 hydrostatic bearing system schematic. Water is pumped out by the pump, all the way through the throttle into the bearing water chamber to lift the shaft, the water from the sealing surface into the sink out; the other way through the valve to control the pressure at 2 to 3 atmospheres (0.2 ~ 0.3MPa) Then enter the bearing body of the four holes, and then spout from the bearing end, blocking the cinder immersion. Structure shown in Figure 3. After observation and operation for a period of time, this idea is feasible and has played a certain role in prolonging the service life of the equipment and reducing the maintenance.