Features

1. The MHE series high efficiency slurry pump is designed with one impeller and allows slurries to enter inside the pumping chamber from only one suction side. It is a horizontal cantilever pump.
2. Housed inside the double-casing design are wet-end parts made from abrasion-resistant high-chrome.
3. Types of shaft seal: packing gland seal, expeller seal, and mechanical seal
4. Several MHE series corrosion-resistant slurry pumps can be installed operating in series.

Advantages

1. The physical layout of this abrasion-resistant slurry pump simplifies maintenance operations and ensures a long service life. Its optimized design also suits the pump for heavy-duty tasks
2. Axially split pump case made from ductile cast iron is used to withstand pressure. Internal pump linings are made of high-abrasion materials for easy replacement and repair.
3. Three types of shaft seals are available: packing gland seal, centrifugal seal, and mechanical seal, which allow for easy replacement depending on the type of slurry to be pumped.

Hydraulic Modeling
In the design of this high efficiency slurry pump, we adopt the theory of solid-liquid two-phase flow velocity ratio which enables maximum exchange of energy between the solid and liquid phases. Advanced hydraulic design is reflected in the optimized structure which allows the pump to deliver high pumping efficiency, prevent pump cavitation, and ensure stable operation. Large-diameter impeller, coupled with narrow flow channel, makes the pump achieve the required high head and efficiency ratings.

Shaft Seals
Packing Seal
As one of the most commonly used seals for rotating shafts, the gland seal can come with low-flush or full flush arrangement which uses flushing water to prevent media from escaping the pump housing. This kind of seal is suitable for use in almost all pumping applications. In situations where corrosive solids or high temperature might be encountered, Teflon or aramid fiber is used as packing material for the gland. To further increase the shaft’s resistance to abrasion, a ceramic coated shaft sleeve would be used.

Centrifugal Seal-Expeller
The combination of impeller and expeller creates the pressure needed to seal against leakage. Together with the gland seal or lip seal which is used as the shut-down seal, this type of seal can handle sealing requirements for applications where full-flush gland seal is impractical due to lack of water on the site, or sealing water is allowed to enter inside the pumping chamber to dilute the slurry.

Mechanical Seal
Advances in sealing technology allows us to create a mechanical seal that ensures zero leakage. Cartridge type mechanical seal facilitates installation and replacement. Other types of mechanical seal are among options to suit the centrifugal slurry pump for various pumping applications. We also utilize special ceramic and alloys of high strength and hardness on parts that are subjected to friction. Unique design of and seamless fit between the mechanical seal and seal chamber provides excellent resistance to abrasion and shock that ensures its effectiveness under the toughest conditions.

Horizontal Axially-Split Bearing Assembly
Lubricated by oil, the axially-split bearing assembly features a large-diameter shaft and a short cantilever. It delivers high rigidity, and is unlikely to deform or vibrate even when highly abrasive solids are encountered. The bearing is directly mounted inside the bearing pedestal which can be split into 2 halves along its center line. This mounting method allows for ease of disassembly, inspection and adjustment of bearing. Water cooling system effectively cools down the hot bearing, greatly improving its use life.

Cartridge Type Oil-Lubricated Bearing Assembly
Spacious cartridge design allows for the installation of a large-diameter rotating shaft. Built specially to handle heavy-duty tasks, the metric size bearing is lubricated by thin oil. Users can install several bearings operating in series. Compact design and high reliability are 2 major benefits of this bearing for its end users.

Installation Types
DC Type: The output shaft of a motor is directly connected to the input shaft of a pump via a pump coupler. This type of connection is suitable for applications where the speed of the slurry pump is the same as that of the motor.
CV Type: The pump is driven by a belt connected to the crankshaft of the engine. This way of connection allows for saving space, easy installation, and fast adjustment of pumping speed. The motor is fixed to the support frame which is attached to the bearing pedestal above the pump.
ZV Type: Another type of belt drive that allows easy adjustment of pumping speed. The motor is directly fixed to the bearing pedestal. This way of installation is suitable for motors with larger horsepower than is possible with CV type of installation. Due to the installation of motor onto the bearing pedestal, this method helps save installation space.
CR Type: This type of belt drive makes it easier to adjust pumping speed. The installation allows both the motor and slurry pump to be fixed to the ground. The motor is installed to the side of the pump. This installation method is suitable for large-power motors.

Applications

Feeding slurries to the hydrocyclone and pressure filter in mining applications, mineral recycling, mine dewatering, coal washing, and metallurgy.

Parameters

Technical Parameters
1. Size: 40 - 300mm
2. Flow rate: 4-2333m³/h
3. Total head: 9-133m

Components