A mud pump is a machine used to transport or pressurize liquids (such as water, oil, acids and alkalis, emulsions, suspension emulsions and liquid metals) as well as liquids, gaseous mixtures and liquids containing suspended solids.
There is a certain mutual dependence between 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 characteristic curve.
According to the working principle, industrial pumps are divided into positive displacement pumps, power pumps and other types of pumps.
According to the driving mode, it can be divided into electric pump and water pump.
According to the structure, it can be divided into single-stage pump and Multi-Stage Pump
According to the purpose, it can be divided into boiler feed water pump and metering pump.
According to the nature of the liquid, it can be divided into pump, mud pump and mud pump.
1. Power pumps, also known as impeller pumps or vane pumps, depend on the dynamic action of the rotating impeller in the liquid, and energy is continuously transmitted to the liquid. Therefore, the impeller pump whose kinetic energy and pressure of the liquid (main) can be increased can be divided into centrifugal Pumps, axial flow pumps, bias flow pumps and vortex pumps.
2. Positive displacement pump: According to the periodic change of the volume of the closed working space containing the liquid, energy will be periodically transferred to the liquid, thereby increasing the pressure of the liquid and forcing the liquid to flow out. According to the form of motion, it is divided into reciprocating pump and rotary pump.
3. Other types of pumps that transfer energy in other forms. For example, jet pumps rely on high-speed injection of working fluid to pump it into the pump and mix for momentum exchange to transfer energy. When the brake is raised to a certain height, the water hammer pump uses part of the water in the flow to transfer energy. The electromagnetic pump realizes the conveying by charging the liquid metal stream under the action of electromagnetic force. In addition, pumps are classified according to the nature of the liquid to be transported, driving method, structure, and use.
The flow of giant pumps can reach hundreds of thousands of cubic meters per hour, while the flow of micro pumps can reach tens of milliliters or less per hour; the pump pressure can be from normal pressure to the highest pressure; the temperature can be as low as -200 degrees Celsius and Up to 800 degrees Celsius.
Slurry Pumps can be widely used in mining, electric power, metallurgy, coal, environmental protection and other industries to transport slurry containing abrasive solid particles. For example, mud transportation in metallurgical beneficiation plants, ash removal in coal-fired power plants, coal slurry and heavy medium transportation in coal washing plants, dredging of rivers, dredging of rivers, etc. In the chemical industry, corrosive slurries containing crystals may also be transported.
At present, about 80% of the application range of mud pumps is used in mining concentrators. Due to the harsh working conditions of the original mine, the service life of the slurry pump in this part is usually very short. Of course, different ores have different abrasive properties.
In the coal washing industry, due to different working conditions, it is easy to block lump coal and combustible rocks, which places high requirements on the design of slurry pumps. In 2005, the coal washing plant under the Huaibei Mining Bureau adopted a specially designed slurry pump imported from Australia. It operates normally, can transport large lumps of coal and does not block coal, and its wear life has exceeded the service life of the imported pump.
In the field of seawater sand separation, the application of mud pumps has also begun to be recognized by customers. However, the sea will choose sand, and the river will be thin. Mud Pumps are more easily regarded as mortar pumps and drainage pumps. Although the name is different, it can be called a mud pump in terms of structural characteristics and pump performance. Therefore, in this process of selecting seawater sand, we usually call it a sand pump. In river ging, it is usually called a jet pump.
Although mud pumps are versatile, it is very important to use them correctly. Due to the limitations of the slurry pump name, some people in the industry have been misunderstood. In fact, mud pumps, mud pumps, ging pumps, thin Ed pumps, etc. are all within the application range of impurity pumps. In the application process of slurry pump, it is very important to pay attention to reasonable design, correct calculation and appropriate selection.
In short, whether it is airplanes, rockets, tanks, submarines, drilling, mining, trains, ships or daily life, pumps are needed everywhere, and pumps are needed everywhere. Therefore, pumps are classified as general-purpose machinery and are the original products of the machinery industry.