立式渣浆泵运转前检查做的好，能够减少很多问题毛病的发作概率，特别是购置后长时间没用，放置的泵，再运转前一定要停止泵的整体测试检查，避免初次运转时对泵形成致命伤害。
立式渣浆泵构造简介
立式渣浆泵主要部件有蜗壳、叶轮、泵座、泵壳、支撑筒、电机座、电动机等组成。蜗壳、泵座、电机座、叶轮螺母是生铁铸造、耐腐性、耐腐蚀性较好，加工工艺便当。叶轮为三片单园弦弯叶，选用半封锁叶轮，并采用可锻铸铁、所以强度高，耐腐蚀;加工便当，经过性好，效率高。为了减轻重量和减少车削量、泵轴是优质碳素钢冷拉园钢制造。 泵座中装有四只骨架油封和轴套，避免轴磨损，延长轴的运用寿命。
立式泵运转前检查
1、检查渣浆泵的一切螺栓能否紧固，特别要留意的是地角螺栓一定要紧固牢靠
2、管路和闸阀与泵必需分别支撑，并且法兰螺栓要上紧，防止漏浆
3、查看电机的旋转方向与泵箭头指向能否分歧，测试电机旋转时应使其与泵别离
4、采用直联传动的要检查联轴器中的弹性垫能否完好正确;采用皮带传动的查看皮带能否磨损、缺乏、松紧能否适度
5、检查电机轴与泵轴能否同心;皮带轮能否对正
6、用手盘车，泵与电机不应有紧涩和摩擦
7、检查光滑系统光滑脂或油能否加注
8、渣浆泵启动前要先开通轴封水(机械密封为冷却水)，水要清洁，水压要适宜(填料密封和单面机械密封水压大于泵腔压力0.1-0.15Mpa)，同时要展开泵进口阀，关闭泵出口阀
9、检查阀门能否灵敏牢靠
A good pre operation inspection of the vertical slurry pump can reduce the occurrence probability of many problems and faults, especially for the pump that has not been used for a long time after purchase. Before re operation, the overall test and inspection of the pump must be carried out to prevent fatal injury to the pump during the initial operation.
Brief introduction of vertical slurry pump structure
The main components of the vertical slurry pump are volute, impeller, pump seat, pump shell, support cylinder, motor seat, motor, etc. Spiral case, pump seat, motor seat and impeller nut are cast with pig iron, with good corrosion resistance and corrosion resistance, and convenient processing technology. The impeller is three single circular chord curved blades, semi closed impeller and malleable cast iron, so it has high strength and corrosion resistance; Convenient processing, good trafficability and high efficiency. In order to reduce the weight and turning amount, the pump shaft is made of high-quality carbon steel and cold drawn round steel. Four skeleton oil seals and shaft sleeves are installed in the pump seat to prevent shaft wear and prolong the service life of the shaft.
Inspection before operation of vertical pump
1. Check whether all bolts of the slurry pump are fastened, especially the corner bolts must be fastened reliably
2. The pipeline, gate valve and pump must be supported separately, and the flange bolts shall be tightened to avoid slurry leakage
3. Check whether the rotation direction of the motor is consistent with the direction of the pump arrow. Separate the motor from the pump when testing the rotation of the motor
4. If direct coupling transmission is adopted, check whether the elastic pad in the coupling is complete and correct; If the belt drive is adopted, check whether the belt is worn, insufficient and moderately tight
5. Check whether the motor shaft and pump shaft are concentric; Is the pulley aligned
6. When turning by hand, the pump and motor shall be free of tightness and friction
7. Check whether the lubricating system is filled with grease or oil
8. Before starting the slurry pump, open the shaft seal water (the mechanical seal is cooling water), the water should be clean, and the water pressure should be appropriate (the water pressure of packing seal and single-sided mechanical seal is 0.1-0.15mpa greater than the pump chamber pressure). At the same time, expand the pump inlet valve and close the pump outlet valve
9. Check whether the valve is flexible and reliable
