Slurry Pump Applications & Types
What is the slurry pump?
Slurry pump is a machine that used to delivers or pressurizes liquid, like water, oil, acid and alkali, emulsion, suspoemulsion and liquid metal, as well as liquids, gas mixtures and liquids containing suspended solids.
There is a certain interdependence relationship between the various performance parameters of the pump, which can be represented by a curve, which is called the characteristic curve of the pump. Each pump has its own specific characteristic curve.
How many type of slurry pump?
According to the working principle, the industrial pump is divided into volumetric pump, power pump and other types of pumps.
According to the driving method, it can be divided into electric pump and water pump, etc.
According to the structure, it can be divided into single-stage pump and multi-stage pump
According to the application, it can be divided into boiler feed water pump and metering pump, etc.
According to the nature of the liquid to be transported, it can be divided into water pump, Oil pumps and mud pumps, etc.
Detailed description based on the working principle
1. Power pump, also known as an impeller pump or vane pump, relies on the dynamic action of the rotating impeller on the liquid, continuously transfers energy to the liquid, so that the kinetic energy (main) and pressure energy of the liquid increase, and then presses out.
Impeller pump can be divided into the centrifugal pump, axial flow pump, partial flow pump and vortex pump.
2. Positive displacement pump, according to the periodic change of the volume of the sealed working space containing liquid, the energy is periodically transmitted to the liquid, so that the pressure of the liquid is increased to forcibly discharge the liquid.
It is divided into the reciprocating pump and rotary pump according to the movement form.
3. Other types of pumps that deliver energy in other forms. For example, the jet pump relies on the high-speed jetted working fluid to draw the fluid to be pumped into the pump and mix it for momentum exchange to transfer energy; the water hammer pump uses a part of the water in the flow when the brake is lifted to a certain height to transfer energy; the electromagnetic pump is The energized liquid metal flows under the action of electromagnetic force to achieve transportation. In addition, the pump can also be classified according to the nature of the liquid to be transported, the driving method, structure, use, etc.
Slurry pump applications
The flow rate of the giant pump can reach several hundred thousand cubic meters per hour, while the flow rate of the micro pump is below several tens of milliliters per hour; the pressure of the pump can be from normal pressure to up to 19.61Mpa (200kgf/cm2); The temperature is as low as -200 degrees Celsius and up to 800 degrees Celsius.
Slurry pumps can be widely used in mines, power, metallurgy, coal, environmental protection and other industries to transport slurry containing abrasive solid particles. Such as metallurgical beneficiation plant slurry transportation, thermal power plant ash removal, coal washing plant coal slurry and heavy medium transportation, dredging rivers, river dredging and so on. In the chemical industry, some corrosive slurries containing crystals can also be transported.
At present, about 80% of the application range of slurry pumps is used in the mining industry concentrator. Due to the poor working conditions of ore primary selection, the service life of slurry pumps is generally low in this section. Of course, different ores have different abrasive properties.
In the coal washing industry, due to different working conditions, large coal blocks and coal gangue are easy to block, and the design requirements for the slurry pump are very high. In 2005, a coal washing plant under the Huaibei Mining Bureau adopted a specially designed slurry pump that was imported from Australia. It has been operating normally, transporting large coal blocks and coal gangue without clogging, and the wear life has exceeded that of imported pumps.
In the field of seawater sand selection, slurry pump applications are also beginning to be recognized by customers. However, sand is selected in seawater and sand is dredged in the river. The slurry pump is more easily considered as a sand pump and a dredging pump. Although the name is different, it can be called a slurry pump in terms of structural characteristics and pump performance. Therefore, in this seawater sand selection, we often call it a sand pump. In the river dredging, it is customary to call a dredging pump.
Although the use of slurry pumps is extensive, the correct application is very important. Due to the limitations of the name of the slurry pump, some people in the industry are misunderstood. In fact, mud pumps, slurry pumps, dredging pumps, dredging pumps, etc. are all in the application range of the impurity pump. In the application process of the slurry pump, it is very important to pay attention to reasonable design, correct calculation, and appropriate selection.
In short, whether it’s airplanes, rockets, tanks, submarines, or drilling, mining, trains, ships, or everyday life, pumps are needed everywhere, and pumps are everywhere. That’s it, so the pump is listed as a general-purpose machine, which is a kind of raw product in the mechanical industry.