Slurry Pump Parts Manufacturer Buying Guide

Common knowledge of disassembly and assembly and installation of slurry pumps is a common knowledge that users must know. In order to facilitate everyone to understand and use this type of product, today the editor has edited and summarized some common knowledge of disassembly and assembly and installation of slurry pumps.　　1. Common knowledge about slurry pump disassembly 1. Disassembly and assembly of the pump head part: The disassembly and assembly and clearance adjustment of the pump head part should be carried out in accordance with the diagram. The impeller, sheath, rear guard plate, and sealed box are all equipped with lifting tools for disassembly and assembly (lifting tools need to be ordered separately to purchase).2. Shaft seal part: The disassembly and assembly of the filler shaft should be carried out in accordance with the drawing. In order to ensure the sealing effect of the filler shaft seal, the shape of the filler opening should be cut as much as possible as possible as possible as possible as possible. When loading into the filler box, the openings of the adjacent filler should be staggered by 108 degrees.　　2. Maintenance is one of the very important things. Here is a very important matter. The maintenance of the slurry pump is introduced to you: 1. The bearing water pressure and water volume must meet the regulations. Adjust the tightness of the filler at any time and do not cause the shaft seal to leak slurry.And replace the sleeve in time.2. When replacing the bearing, be sure to ensure that the bearing assembly is free of dust and the lubricating oil is clean. The bearing temperature is generally not exceeding 60-650C when the pump is running, and the maximum is not exceeding 750C.3. Ensure the coaxiality between the motor and the pump, ensure that the elastic pad in the coupling is complete and correct, and should be replaced in time after damage.4. Ensure that the pump components and pipeline systems are installed correctly, firmly and reliably. 5. Some components are consumable parts. In daily use, pay attention to the loss of consumable parts and repair or replace them in a timely manner.During the repair or replacement of consumable parts, it is necessary to ensure that the assembly is correct, the clearance is adjusted reasonably, and to avoid the occurrence of tight friction.6. The suction pipeline system must be free of air leakage. At the same time, pay attention to whether the suction inlet is blocked during operation.The medium required for the slurry pump is mostly solid particles, so the barrier placed in the pump tank should meet the requirements of the particles that can pass through, reducing the possibility of excessively large particles or long fiber materials entering the pump body and causing clogging.3. Installation and use knowledge　Slurry pumps are widely used in chemical industries such as petrochemicals, coal chemicals, etc., transport liquids of different properties and provide the pressure and flow rate required for chemical reactions.There are many types, and according to the properties of the conveying medium, they can be divided into acid pumps, alkali pumps, clean water pumps, mud pumps, etc.The working temperature and working pressure of the conveying medium are different, so it effectively extends the service cycle and reduces the amount of maintenance, which plays a great role in improving the economic benefits of the factory.1. Selection and installation The slurry pump should be selected according to the liquid conveyed, and the required performance should be checked, the suction and discharge conditions should be analyzed, whether it is intermittent or continuous operation, etc.Usually operated under pressure and flow conditions close to the manufacturer's design.The following review should be conducted during installation: (1) The size, position and elevation of the foundation should meet the design requirements, the anchor bolts must be properly and correctly fixed in the concrete foundation, and the machine should not have any missing parts, damage or rust; (2) According to the characteristics of the conveyed medium, the materials of the main parts, shaft seals and gaskets should be checked if necessary; (3) The correcting work should comply with the provisions of the equipment technical documents. If there is no provision, it should comply with the provisions of the current national standard \"General Specifications for the Construction and Acceptance of Mechanical Equipment Installation Projects\"; (4) All pipelines connected to the slurry pump body, pipe fittings, and the cleaning requirements of lubricating oil pipelines should comply with the provisions of relevant national standards.2. Use The trial operation of the pump should meet the following requirements: (1) The steering of the drive machine should be the same as that of the pump; (2) Inspect the steering of the pipeline pump and the coaxial pump; (3) The fixed connection parts should not be loose, and the specifications and quantity of lubricant added to each lubricating part should comply with the provisions of the equipment technical documents; (4) Parts with prelubricating requirements should be prelubricated in accordance with the regulations; (5) Each indicator instrument should be installedThe full protection device should be sensitive, accurate and reliable; (6) The wheel should be flexible and no abnormal phenomena; (7) The pump body should be preheated before trial operation, the temperature should rise evenly, and the temperature rise should not be greater than 500℃ per hour; the temperature difference between the surface of the pump body and the process pipeline with the inlet of working medium should not be greater than 4090; (8) The slurry pump is equipped with a connecting device to eliminate the influence of temperature rise, and a bypass connection device should be set to provide cooling water source.

At present, 80% of slurry pumps are widely used in factory selection to transport slurry. Whether the flow rate, rotation speed and other parameters of the slurry pump are reasonable directly affects the life of the slurry.Choosing the appropriate working parameters can not only give full play to the performance of the slurry pump, but also improve the service life. If the choice is improper, the slurry pump will not work properly, and may even cause the factory to be selected and production will be suspended.In order to fully utilize the performance of the slurry pump, it is necessary to fully understand the relationship between the slurry flow rate, rotation speed, etc. and the life of the slurry pump in actual work.Due to the flow of the ore slurry in the slurry pump, the ore slurry will cause impact and wear on the inner lining of the pump body. Obviously, with the same slurry flow rate, the slower the slurry flow rate, the lighter the wear of the pump body, and the longer the service life of the slurry pump.Therefore, the design flow rate should be as small as possible while ensuring the efficiency of the slurry pump.Furthermore, the lower the pump speed, the lower the relative speed of the impeller and the slurry will be, and the slower the wear speed of the impeller will be.In addition, at the same flow rate, the larger the diameter of the impeller, the lower the rotation speed, the fewer ore particles per unit area, and the wear of the impeller is lighter.Therefore, the correct choice should be a large pump with low speed, which can extend its service life and reduce costs due to its light wear.In addition to flow rate and speed, the head also has a certain impact on the life of the pump. The actual head of the pump must be controlled within the withstandable range. Otherwise, too high head will lead to excessive flow of the pump. On the one hand, it will cause evacuation and damage to the pump. On the other hand, too large flow will increase wear and reduce service life.Slurry pumps are commonly used in ore dressing processes and are mainly used for ore slurry transportation.Improper use of slurry pumps may affect the normal operation of slurry pumps and affect their production capacity.What problems can easily cause improper use of slurry pumps, and how to solve them to make the slurry pump run normally?1. The long-term use of the slurry pump causes scaling on the surface of the cooler pipe wall, resulting in poor heat transfer; the cooling water volume is small or no cooling water is added.Therefore, it is necessary to check whether the bearing cooling water pressure and flow rate are suitable. Generally, the cooling water pressure of the slurry pump is 0.05~0.2MPa, and the cooling water flow rate is 1~3m3/h. Change the scaling cooler in time, turn on the cooling water before the pump starts to adjust the pressure to the specified value, and check the bearing temperature rise (35℃) regularly. The high temperature must not be greater than 75℃.2. During the use of the slurry pump, the seal failed due to packing wear, and the slurry leaked along the shaft seal. The slurry instantly filled the semicircular positioning hole curved surface of the bracket and the rear pump shell. The slurry discharged from the discharge port could not be sealed into the oil pool through the water barrier plate, causing bearing damage.During daily maintenance, attention should be paid to regularly detecting the leakage of shaft seal water. When the leakage amount increases, the bolts of the filler gland should be adjusted, and the packing and failed O-rings should be replaced in time to prevent leakage slurry from leaking from the waterproofing plate sealing into the bracket oil tank along the shaft.3. The lubricant oil is not clean, resulting in problems such as bearing friction, wear, heating, vibration, etc. You can lubricate various parts of the bearing to reduce friction and wear. The quality of the lubricant should be checked regularly to allow dust or oil to age and deteriorate.The lubricating oil should be adjusted strictly in accordance with the pump instruction manual. It should not be too much or too little. If there is too much oil, most of the friction heat inside the bearing cannot be taken away, which will not play an effective role in heat dissipation, and will also increase the temperature rise of the bearing; if there is less oil, it will cause the bearing oil film to rupture and dry friction, burn the bearing.These small problems with slurry pumps will have a great impact over time and should be checked in time and repaired in time to ensure the normal use of slurry pumps.

The centrifugal slurry pump can transport solid slag particles of different densities and particle sizes. The solid particles transported are large in radius, the solid-liquid mixed fluid has a high velocity and a large flow rate, so it is favored by steel, metallurgy, chemical industry, and mining industry.In these industries, the external use conditions of slurry pumps are relatively poor, and their parts are seriously damaged, especially the wear problems of the pumps are becoming increasingly prominent.Now the wear of the volute impeller is attracting more and more attention.For example, a slurry pump, which is one of the impurity pumps, wastes a lot of material and energy due to wear of the flow path portions.So how to solve the problem when a centrifugal slurry pump is blocked?　　1. The solid and hard deposits in the volute shell of the horizontal slurry pump are blocked, and measures to eliminate the blockage can be taken.2. If the shaft is different from the feed box, the main reason is that the machining error is large and the installation is incorrect.After installation, you should pay attention to check whether the installation is correct.If the sealed water ring is severely worn, a new water ring must be replaced.If the sealed water pipe is blocked, the sealed water will not be able to enter the middle of the filler, causing rapid wear of the filler and material leakage.The blocked water pipes should be cleared to keep the sealed water clean.3. If the impeller or water inlet and outlet pipe of the centrifugal slurry pump is blocked, you can use the method of cleaning the impeller or pipeline.If the impeller is severely worn, it should be replaced.If there is air leakage at the filler port, the filler should be compressed.If the conveying height is too high, the loss resistance in the pipe is too large, so the conveying height or resistance can be reduced.