In-depth Demand Report | Disassembling Tailing Slurry Pump

　　Subtration of similarities and differences between slurry pumps and mud pumps　　Slurry pumps refer to a machine that increases the energy of solid and liquid mixture by using the action of centrifugal force (rotation of the pump impeller).The working principle is to transfer the mechanical energy of the prime mover to the liquid by relying on the action of the rotating impeller on the liquid.Since the velocity energy and pressure energy of the actuating liquid flow from the inlet of the impeller to the outlet, both its velocity energy and pressure energy are increased. The liquid discharged by the impeller passes through the pressure outlet chamber, and most of the velocity energy is converted into pressure energy, and then transported out along the discharge pipeline. At this time, a vacuum or low pressure is formed at the inlet of the impeller due to the discharge of the liquid. The liquid in the inlet of the inlet of the liquid is pressed into the inlet of the impeller under the action of the liquid pressure (atmospheric pressure). Therefore, the rotating impeller continuously sucks and discharges the liquid.Not only does it save energy 4%-8% more than similar products, it also contributes to the atmosphere's escape from haze. For example, the slurry circulation pump used for desulfurization of power plants also belongs to the category of slurry pumps.Many people will confuse the concepts of the two, but from the perspective of practical applications or the characteristics of transmission media, the two are indeed inseparable.Slurry pumps are mainly suitable for mining, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and other industries.Mud pumps are also a wide range of pumps, with different geographical locations, habits, and popular concepts involving different pump types than those used in the field of oil drilling.The similarities between the two: 1. From the working principle is a centrifugal pump. From the concept of centrifugal force (pump impeller rotation), the action of the mixed medium of solid and liquid increases the energy of the machine and converts energy into kinetic energy and potential energy devices.2. It has a vertical horizontal type, which is a transport slurry.3. It is the difference between the two: 1. The slurry pump has strong wear performance and the ability to transport particles is stronger than that of the mud pump; 2. The general processing capacity of the slurry pump is stronger than that of the mud pump, and is mainly used for mine washing such as coal and metal; 3. The slurry pump is more suitable for slurry with not very strong abrasives; 4. The material of the flow component of the slurry pump is generally cast steel, while the slurry pump is generally made of high chrome wear-resistant alloy materials.

Why does the slurry pump burn out under the liquid?How does it drain oil?In recent years, old customers often ask me why the slurry pump under the liquid burns out?The first thing that comes to mind is that the customer has used it improperly. Our pumps have been shipped after strict inspection and are of excellent quality. As long as they are used normally, they will generally not have any problems after two or three years of use.So why it burns out?It must be caused by improper use. Here are some tips for you to prevent the pump from burning out due to these factors: 1. When the head is too low or the head is higher than the actual requirements, it will cause a large flow rate and a current rise. At this time, the small outlet valve can be closed to increase the resistance to control the current.2. Generally, water cooling is used to dissipate heat. If the motor leaks out of the water surface and there is no water cooling, the motor temperature will rise, which can easily cause the motor to burn out.3. If hot water within 80℃ is transported, you must use a hot water pump. When using it, you must connect external tap water to cool it, otherwise the motor will burn due to the excessive temperature of the medium.4. If there is no corresponding water leakage sensor, the seal should be replaced by the slurry pump under the maintenance solution regularly.5. If the power cord is not in contact well, it will also cause the motor to burn.6. The circuit should be checked at all times to prevent burnout.7. If you suddenly feel that its appearance is a little hot during use, you can temporarily shut down and cool down.Also, check more when wiring.*, Under-liquid slurry pumps have long been used in the suction of various oil residues, dirty liquids, mud, mortars, flowing sand, and flowing sludge in urban sewage drainage channels, as well as fluids containing mud and sand slag and corrosive liquids.The oil discharge operation of the slurry pump under the liquid is also required. Here is a description of its oil discharge operation method.1. If you want to drain all the oil in the pump box, you can unscrew the oil drain plug at the bottom of the box to drain the oil.2. When it is discharged from oil, the height of the top plate of the liquid level spacer oil tank should not exceed 30 mm to ensure the smoothness and cooling of the bearings in the pump.When the volume of the jack working chamber is too large, another oil tank needs to be installed to ensure that the liquid level after the oil is discharged is not less than 100 mm to avoid emptying.3. After the speed-regulating slurry pump is first run for 500 hours, the oil should be changed and the oil tank and oil filter should be cleaned. The oil quality should be tested by visual inspection and testing. When the oil quality deteriorates, the oil should be changed in time. It is necessary to clean the oil tank and oil filter together when changing oil. If there is metal chips or water in the oil, factors should be found and problems should be eliminated.4. In a short time when the liquid level is lowered, the oil splashing of the bearing against the oil and the plunger spring is smooth. The oil tank and the oil filter under the pump are made of 230 mesh/inch copper wire mesh. The oil filter mesh should be cleaned frequently to prevent blockage. When used, the oil temperature of the oil tank must not exceed 60℃. Appropriate measures should be taken to cool if necessary.The above is the detailed introduction of the oil drain operation method of the slurry pump. Generally, the equipment is not allowed to regularly check the quality of oil and change the oil during maintenance. Therefore, the introduction of the above content will definitely be very helpful to you.However, when we are performing oil drainage, we must pay attention to checking whether the oil is drained clean.

　　Why doesn’t the slurry pump come out?Come here to find the reason. Recently, I received feedback from many customers asking why the slurry pump cannot produce water.Then the editor sorted out the reasons why the slurry pump cannot produce water. I hope it can help you. Let’s take a look next!1. There is air in the water inlet pipe and pump body (1) There is no sufficient water filling before the slurry pump starts, and a small amount of air remains in the pump chamber.(2) When the slurry pump is used for installation, a slope of more than 0.5% is applied to the horizontal section of the water inlet pipe in contact with the pump against the direction of the current flow. One end connecting the inlet of the water pump is the highest, and it is not horizontal.If raised upwards, air will remain in the inlet pipe, reducing the vacuum in the water pipe and the water pump, affecting the slurry suction.(3) The filler of the slurry pump has been worn out due to long-term use or the filler is too loose, causing a large amount of slurry to be ejected from the gap between the filler and the pump shaft sleeve. As a result, external air enters the inside of the pump from these gaps, affecting the upsuspended suction.(4) The water inlet pipe is lurking underwater for a long time, and holes appear on the pipe wall. After the water pump works, the water surface continues to drop. When these holes are exposed to the water surface, the air enters the civil inlet pipe from the holes.(5) Small cracks in the pipeline, and slight gaps appear at the connection between the water inlet pipe and the water pump, which may cause air to enter the water inlet pipe.2. The speed of the slurry pump is too low (1) Artificial factors.Some users of some departments randomly equipped with another motor due to damage to the original distribution motor, which resulted in the consequence of small flow, low head, or even no water supply.(2) The impeller of the slurry pump moves more often, directly rubs with the pump body, or damages the bearing.3. The suction range is too large. Some water sources are deeper, and some water sources have flat outer terrain, and the allowable suction range of the water pump is ignored, which results in the result of less water absorption or no water absorption at all.The vacuum degree that can be established at the water suction port of the slurry pump is limited. The vacuum suction range is about 10 meters high in the water column, and the vacuum that the slurry pump cannot establish.Moreover, if the vacuum is too large, it will easily vaporize the water in the pump, making the slurry pump unfavorable.Therefore, the installation of the slurry pump must be within the maximum allowable suction range, and it must not be convenient and simple when installing the pump.4. The resistance loss in the water flow in and out of the water pipe is too large. Some users can measure it. Although the vertical interval between the reservoir or water tower and the water surface of the water source is slightly smaller than the pump head, the water lift amount is still small or the water cannot be lifted.The reason is often that the pipeline is too long, the water pipe bends are often used, and the water flow is too much in the resistance loss in the pipeline.The reason is often that the pipe is too long, the water pipe bends are many, and the water flow loses too much resistance in the pipe. In addition, some users also use slurry pumps to enter and exit the pipes at will, which also has a certain impact on the head.5. Influence of other factors (1) The bottom valve cannot be opened.Usually because the pump is shelved for too long, the bottom valve washer is stuck to death, and the bottom valve without the washer may rust.(2) The filter mesh of the bottom valve is blocked; or the bottom valve is lurking in the sludge layer in the water, causing the filter mesh to be blocked.(3) The overflow parts are seriously worn.The impeller blades, sheaths and shields are worn after long-term use, which affects the slurry pump function.(4) If the gate valve check valve is faulty or blocked, it will cause the flow rate to be reduced or even the slurry cannot be pumped.(5) Leakage in the outlet pipeline will also affect the water supply