Shaft seal (seal): The shaft seal types of the pump include packing seal, impeller seal, and mechanical seal.
Transmission mode: V-belt drive, elastic coupling drive, gear reducer drive, hydraulic coupling drive, frequency conversion drive, thyristor speed control, etc. Among them, V-belt drive includes CL, CV, CR, ZL, ZV, and ZR drive.
Overall performance: The pump has a wide performance range, good cavitation performance, and high efficiency. Multi-stage series technology can be used to meet long-distance transportation. There are a variety of metals available for the flow-through parts, and the depth is increased. A variety of speeds and a variety of variants are used to enable the pump to operate under industrial and mining conditions. It has a long service life and high operating efficiency, and can meet a variety of harsh transportation conditions.

• Working principle of slurry pump

First, let's talk about the relationship between centrifugal pumps and slurry pumps, and then the principle of slurry pumps will naturally become clear. The centrifugal concept is based on the pump. There are many types of pumps, which can be divided into dozens of categories according to different angles. Centrifugal pumps are divided according to the working principle of the pump, which is the process of pressurizing the conveying medium through the action of centrifugal force. In addition, there are common types including screw principle, plunger principle, etc., which can be divided into pumps different from centrifugal principles. After talking about the concept of centrifugal pumps, let's talk about slurry pumps. Slurry pumps are divided from another perspective, that is, from the conveying medium. As the name suggests, slurry pumps convey a mixture of solid particles containing slag and water. But in principle, slurry pumps belong to a type of centrifugal pump. In this way, these two concepts are explained clearly.
The main working parts of a centrifugal pump are the impeller and the casing. The impeller device in the casing is located on the shaft and 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 along its direction of movement, thereby forcing the pressure potential energy and kinetic energy of the fluid to increase. At the same time, under the action of inertia, 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 extrusion chamber, and is discharged through the diffuser. This process is called the water pressure process. At the same time, because the fluid in the center of the impeller flows to the edge, a low-pressure area is formed in the center of the impeller. When it has enough vacuum, under the action of the suction end pressure (generally 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 inhaled, forming a continuous operation.
The working process of a centrifugal pump (including a slurry pump) is actually a process of energy transfer and conversion. It transmits the mechanical energy of the high-speed rotation of the motor through the pump blades and converts it into the pressure energy and kinetic energy of the pumped fluid.

• AH, M, HH fractional slurry pump application

Slurry pumps can be widely used in mining, power, metallurgy, coal, environmental protection and other industries to transport slurries containing abrasive solid particles. Such as slurry transportation in metallurgical ore dressing plants, hydraulic ash removal in thermal power plants, coal slurry and heavy medium transportation in coal washing plants, dredging of rivers, river silt removal, etc. In the chemical industry, some corrosive slurries containing crystals can also be transported. 
First of all, about 80% of the applications in ore dressing plants are used in ore dressing plants in the mining industry. Due to the harsh working conditions of the primary selection of ore, the service life of slurry pumps is generally low in this section. Of course, different ores have different abrasiveness. For example, in the section of concentrate transportation, the relative abrasiveness is reduced, and the overall service life of the pump is longer. Therefore, when general users often ask about the service life of suppliers' products during the procurement process, strictly speaking, no manufacturer will promise users an accurate service life cycle without basis, because the service life of the flow-through parts (wear-resistant and corrosion-resistant parts) depends on many different factors, and the diversity and complexity of the working conditions lead to differences in the service life of materials of the same quality. However, in the early stage of selection, powerful manufacturers can be asked to make reasonable working condition selection and design for it.
Secondly, in the power industry, it is mainly thermal power plants. At present, my country's power plants are mainly thermal power generation and hydropower generation. In thermal power plants, due to the large amount of coal-fired power generation, the slag or ash after coal burning needs to be removed. The slurry pump is used to remove the ash. After mixing a certain amount of water, the slag is transported to the place where the ash is piled through the slurry pump. Therefore, sometimes the slurry pump is also called an ash pump in the power plant.
Thirdly, 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 slurry pumps are very high. In 2005, a coal washing plant under the Huaibei Mining Bureau adopted a specially designed slurry pump to replace the original imported from Australia. It has been operating normally so far, transporting large coal blocks and coal gangue without blockage, and the service life exceeds that of imported pumps from abroad.
In the field of seawater sand selection, the application of slurry pumps has also begun to be gradually recognized by customers. However, when selecting sand in seawater and dredging sand in rivers, slurry pumps are more likely to be called sand pumps and dredging pumps. Although the names are different, they can all be called slurry pumps in terms of structural characteristics and pump performance principles. Therefore, we often call it a sand pump in seawater sand selection, and dredging pumps in river dredging.

Although slurry pumps are widely used, correct application is very important. Due to the limitations of the name itself, slurry pumps have caused some people outside the industry to misunderstand it. In fact, mud pumps, impurity pumps, dredging pumps, dredging pumps, etc. are all within the application range of slurry pumps. In the application process of slurry pumps, we must pay attention to reasonable design, correct calculation, and appropriate selection. These points are very important.

• AH slurry pump performance parameter table: