Large-diameter ZJ Type Slurry Pump

The large-diameter ZJ type slurry pump is a horizontal, single-stage, single-suction, cantilever centrifugal slurry pump, specially designed for transporting slurries with high concentration, high solid content, high wear resistance and high corrosiveness. . This series of pumps adopts a double pump housing structure, namely the outer pump housing and the inner pump housing (or referred to as the front pump housing and the rear pump housing). The inner housing and the impeller, guard plate, and other flow-through components can be replaced, making maintenance convenient. The numbers in the model names represent the outlet diameter of the pump (in millimeters). For example, "300ZJ" indicates an outlet diameter of 300 millimeters, which belongs to a typical large-diameter pump type. . This series of pumps has a wide flow range, with a maximum capacity of up to 6,000 cubic meters per hour and a maximum lift of up to 134 meters. They can meet the needs of various large-scale and heavy-duty working conditions.

1.Lubrication structure design
The pump's built-in sealed lubrication structure enables more direct and effective lubrication and flushing of the pump's sealing system by the sealed circulating water.

2.Stable performance, smooth operation, powerful engine, multiple applications, convenient to use

3.High working efficiency. The pump body adopts a double-flow channel design to reduce radial force. This ensures the appearance, flow channel size and the hydraulic efficiency of the pump.

High efficiency, energy conservation and strong conveying capacity: With advanced hydraulic design and wide flow channels, the hydraulic performance is excellent, and the efficiency indicators are at the leading level in China and even internationally. . The large-diameter design enables it to have an extremely large flow capacity for transportation, making it particularly suitable for transporting large-scale slurries such as mine tailings and power plant ash sludge. .
Excellent wear resistance and corrosion resistance: The flow components (such as impellers, volutes, and guards) are made of high-chromium alloy wear-resistant materials or wear-resistant rubber liners. They have high hardness and can effectively resist the intense scouring and wear caused by solid particles, ensuring a long service life. . Some models have been specially treated and can be used in environments with electrochemical corrosion, such as seawater. .
Stable and reliable operation, easy maintenance: Utilizing heavy-duty bearing boxes and a well-designed lubrication and cooling system, it ensures that the bearings operate stably at low temperatures with minimal vibration and low noise. . The dual pump housing structure enables the severely worn flow components to be replaced separately without the need to disassemble the entire pump body, significantly reducing maintenance costs and downtime. .
Excellent anti-clogging and cavitation resistance performance: The flow channel is designed to be wide and smooth, capable of passing through larger solid particles (with the maximum particle size varying depending on the model), and has excellent anti-blocking performance. . The excellent hydraulic design also provides better cavitation margin performance. .
Flexible sealing and series connection method: The shaft seal can be selected as a combination of auxiliary impeller and packing seal or mechanical seal according to the working conditions, ensuring no leakage of the slurry. . Within the permitted working pressure range (such as 3.6 MPa), the pump can be used in multiple stages in series to meet the requirement of higher head.

The large-diameter ZJ type slurry pump is a key equipment in the heavy industries such as power, metallurgy, mining, coal, building materials, and chemical industries. It is mainly used for transporting abrasive slurries containing solid particles. .
Mining industry: Used for large-scale metal mines (such as gold, iron, copper, and aluminum mines) for high-volume transportation of mine pit slurry, transportation of concentrate and tailings slurry in beneficiation plants, underground drainage, and mud pumping and drainage. . It allows the maximum concentration of the slurry that can be transported to reach up to 60%. .
Metallurgical industry: Suitable for the ultra-large flow transportation of high-temperature and highly abrasive slurries such as slag slurry, red mud slurry, and metallurgical sludge in steel mills and non-ferrous metal smelting plants. .
Electric power industry: Mainly used in the water-based ash and slag removal systems of large thermal power plants, for transporting ash and slag slurry, as well as in the flue gas desulfurization (FGD) systems for the circulation transportation of gypsum slurry. . The allowable weight concentration of the conveyed mortar can reach 45%. .
Coal industry: In large coal washing plants and coal processing plants, for the large-scale transportation and circulation of coal sludge, coal slurry, and heavy media (heavy media)

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