If you want to properly install the ZJ
Slurry Pump and properly maintain it, you need to understand the structure of the ZJ slurry pump. In the pump products, ZJ slurry pump structure is more complex, different models have a special illustration. Structure of ZJ Slurry Pump, Installation and Maintenance of ZJ Slurry Pump Structure of ZJ Slurry Pump ZJ Slurry Pump, commonly used in coal preparation plant, is divided into horizontal axial suction single-stage single-suction centrifugal slag Slurry pumps and vertical axial suction single-suction single-
Suction Slurry Pump two categories, although many models, but its structure is similar. Common
Horizontal Slurry Pump shown in Figure 1-2,
Vertical Slurry Pump shown in Figure l-3. (B) ZJ slurry pump installation Power transmission between the power machine and the slurry pump is mainly accomplished through the transmission equipment. Transmission equipment in the slurry pump between the various units also play a major role, not only affects the transmission efficiency, but also affect the efficiency of the entire pumping station, transmission equipment should be selected properly. Transmission: a V-shaped belt drive, flexible shaft drive, gear reducer transmission, hydraulic coupling drive, frequency drive, SCR speed control. V-belt drive with CL, CV, CR, ZL, ZV, ZR drive. (C) ZJ slurry pump maintenance ZJ series slurry pump machine has been adjusted before leaving the factory, the user within 6 months after purchase, unused pump without dismantling. Only check whether the rotation is flexible, rust and fuel conditions can be filled before use to add filler. 1, please keep the slurry pump clean, dry, no oil, no leakage. 2, please check the daily oil level is moderate, the correct oil level is in the vicinity of the oil level line, shall not exceed ± 2mm. 3, often check the slurry pump operation whether there is abnormal sound, pump vibration and pump leaks, found that the problem needs to be promptly addressed. 4, the slurry pump is strictly prohibited in the pump down state, because the slurry pump in the pump down state not only violent vibration, but also reduce the pump life, pay special attention. 5, metal objects and more than allowed by the pump into the solid slurry into the slurry pump, and non-rubber, cotton, plastic sheeting and other flexible substances into the pump, so as not to damage the flow of parts and clogging
Impeller runner, so that the pump Can not work normally. 6, please always check the slurry pump shaft seal water and cooling water pressure and flow is appropriate, you can check the shaft seal water valve open or detect the temperature of the packing box method, the temperature is high when the lack of water. For grease lubricated packing pump, daily should be regularly refueling one or two times, to ensure that the packing is in good lubrication. 7, please check the shaft seal water leakage regularly, when the leakage increases, you should adjust the packing gland bolts, need to change the filler to be replaced. 8, it is recommended to use carbon fiber impregnated PTFE or butter boiled cotton filler, working pressure is not greater than 0.5MPa, the use of asbestos packing. Filler packing method, should be filled in strict accordance with the following requirements: (1) packing length according to the length of the sleeve to expand the circumference of the circle, when the ring pressure to staggered cut incision 120 ° (2) packing filled, must be carried out Through the water test run, and then adjust the gland bolts in detail to achieve the point of leakage into the line and the state is not the best. Packing stuffing is very important, it is not only related to the sealing condition is good or bad, but also affect the performance of the pump, should cause enough attention. 9, in order to ensure the efficient operation of the pump, must be regularly (after a period of time, under the same operating conditions, the current slow down) to adjust the gap between the impeller and the front guard to keep the gap between 0.75-1.00mm. 10, often bearing the highest temperature should not exceed 75 ℃. 11, the pump should be completely replaced after 800 hours of continuous operation of lubricating oil. 12, standby pump should be rotated 1/4 turn per week, so that the shaft evenly to withstand static load and external vibration. 13, if the downtime is longer, before starting again, use recoil water to wash the sediment in the pump before starting. 14, always check the system out of water piping loose support system to ensure solid support, the pump body is not supported. 15, always check the pump on the basis of the fastening, the connection should be solid and reliable. 16, special attention: the new installation and maintenance of the pump, be sure to try a good motor steering, and then put on the coupling pin. Drive with a belt, that is, try a good turn, then install the belt, and not motor driven pump reverse. However, it is allowed to reverse the flow of liquid in the tube when the motor is de-energized. However, it should be noted that when the height difference is extremely large (≥80m), backflow should also be prevented to reverse the pump suddenly. 17, open the pump before the shaft seal water and cooling water, and then open the pump; stop pump, after 15 minutes before closing the shaft seal water and cooling water. (Editor: Huang Nengwen QQ :)
July 16, 2023
