Analysis Of The Causes Of Heating Of Centrifugal Slurry Pump Bearings

　　Analysis of the reasons why the bearings of centrifugal slurry pumps become hot. Centrifugal slurry pumps are a process of pressurizing the conveying medium through centrifugal force.There are also common types including screw principle, plunger principle, etc., which can be divided into pumps that are different from the centrifugal principle.As the name suggests, a centrifugal slurry pump delivers a mixture of solid particles containing residue and water.The main working parts of the centrifugal slurry pump are the impeller and the casing. The impeller device in the casing is located on the shaft and is connected to the prime mover to form a whole.When the prime mover drives the impeller to rotate, the blades in the impeller force the fluid to rotate, that is, the blades do work on the fluid in its direction of movement, thereby forcing the pressure potential and kinetic energy of the fluid to increase.At the same time, under the action of inertial force, the fluid flows from the center to the edge of the impeller, and flows out of the impeller at a very high speed, enters the pressure outlet chamber, and is discharged through the diffusion pipe. This process is called the water pressurization process.At the same time, since the fluid in the center of the impeller flows to the edge, a low pressure zone is formed in the center of the impeller. When it has sufficient vacuum, under the action of the pressure at the suction end (usually atmospheric pressure), the fluid enters the impeller through the suction chamber. This process is called the water absorption process.Due to the continuous rotation of the impeller, the fluid is continuously discharged and sucked in, forming a continuous work.The working process of a centrifugal slurry pump is actually a process of energy transfer and conversion.It transfers the mechanical energy of the motor at high speed through the pump blades and converts it into the pressure and kinetic energy of the pumped fluid.Centrifugal slurry pumps are mainly used in the environmental protection, municipal engineering, thermal power plants, gas coking plants, oil refineries, steelmaking plants, mining plants, cement plants, food plants, printing and dyeing industries to absorb concentrated liquids, heavy oil, oil residue, dirty liquids, mud, mortar, flow sand and urban sewage channels, as well as fluids and corrosive liquids containing mud, sand slags.The centrifugal slurry pump is connected to the motor through an elastic coupling, and the pump rotates clockwise from the direction of the prime mover.Bearings are one of the important accessories of centrifugal slurry pumps.During use, some problems with the bearings often affect the overall working efficiency of the centrifugal slurry pump.Therefore, you must pay attention to the correct use of centrifugal slurry pump bearings.When using a slurry pump, sometimes the bearings get hot, so what is the reason?How to solve it?Today, I will talk about this question.There are several possible reasons for the hot bearings of centrifugal slurry pumps: 1. The bearing accuracy used by centrifugal slurry pumps is insufficient.2. Insufficient lubricating oil.Regarding the accuracy of the bearing usage of centrifugal slurry pump, the grinding records of the bearings should be carefully recorded and analyzed, and the geometric dimensions of the shaft and the bearing box should be checked, and the machining accuracy should be consistent with the drawing.Therefore, when choosing a centrifugal slurry pump, you must find a reliable centrifugal slurry pump manufacturer, so that the product can be produced and the quality can be guaranteed.If the lubrication is not enough, lubricating oil should be added regularly.During this process, you must pay attention to the choice of lubricating oil.When choosing lubricant oil, the first thing to consider is the model of centrifugal slurry pump, because the lubricant required by different types of centrifugal slurry pumps is also different.There are two main lubricating oils, namely organic oil lubrication and butter lubrication.Grease lubrication: add 2# or 3# lithium-based grease.Oil lubrication: Fill 32# or 46# engine oil.