Created on 08.06
Volute Liners on 1.5x1B AH slurry Pumps
In basic industries vital to national economy and people's livelihood such as mining, metallurgy, coal, water conservancy and transportation, slurry pumps play an irreplaceable role. Like the "throat" of the industrial system, they continuously transport solid-liquid mixtures containing solid particles such as ore pulp, cinder and mud, maintaining the smooth operation of the production process. However, in this process, the flow-through parts of the slurry pump are always facing a severe test - the continuous impact and friction of solid particles make wear an unavoidable problem. Among them, the volute bushing, as a key wear part, its damage directly affects the service life of the pump, operational stability and the enterprise's operating costs. In-depth exploration of the wear mechanism of the volute bushing and search for effective improvement measures are of great significance for improving the performance of the slurry pump and reducing production costs.
The volute bushing is the core component that constitutes the pump chamber of the slurry pump. The throat bushing and the frame plate bushing are embedded in it, together forming a channel for the slurry to flow. Structurally, the slurry volute bushing presents a unique arc-shaped funnel form, and its area gradually increases toward the discharge port. This design cooperates with the slurry pump impeller to ensure the smooth flow of the slurry. As an important part working in conjunction with the impeller, factors such as the shape, size and material of the volute bushing have a profound impact on the operating state and wear of the entire pump body.
When the slurry pump is running, the impeller rotates at high speed to generate centrifugal force, pushing the solid-liquid mixture into the volute bushing. At this time, the volute bushing not only has to bear the impact force of the material, but also cope with the friction generated during the flow of the material. Under such harsh working environment for a long time, the volute bushing is prone to wear. Once the volute bushing is excessively worn, it will not only cause deformation of the pump chamber structure, affect the flow path of the slurry, but also aggravate the wear of the impeller and other components, forming a vicious circle, which will eventually lead to a decline in pump efficiency, frequent failures, forcing enterprises to shut down for maintenance, resulting in huge economic losses.
To improve the wear condition of the volute bushing and even the entire slurry pump, systematic optimization from multiple dimensions is required, and the reasonable matching of the volute and the impeller is the primary link. The shape design of the volute has a crucial impact on the wear of the pump. If the shape design of the volute is unreasonable, it will lead to uneven distribution of the liquid flow velocity in the pump chamber, and the flow velocity in some areas will be too high, which will intensify the impact and friction of solid particles on the volute bushing and the impeller, accelerating the wear process.
Therefore, in the design of the volute, full consideration must be given to its matching relationship with the impeller. Through precise calculation and repeated tests, optimize the shape and size parameters of the volute so that the liquid flow can maintain a stable and uniform flow state in the volute, and the flow velocity can be controlled within a reasonable range. When the liquid flow velocity reaches the minimum value, the impact force and friction force of solid particles on the volute bushing and the impeller will also be reduced accordingly, thereby effectively reducing the wear degree. At the same time, a reasonable matching design can also improve the working efficiency of the pump, reduce energy loss, enhance the stability of equipment operation, and lay a solid foundation for extending the service life of the volute bushing and the entire pump body.
In addition to the optimization of structural design, the reasonable selection of manufacturing materials for the volute bushing according to the medium characteristics is also a key measure to deal with wear problems. The properties of the medium transported by the slurry pump are complex and diverse. Factors such as the geometric shape and particle size of solid particles, as well as the viscosity, density and temperature of the slurry, directly affect the wear rate of the volute bushing.
For media with small and regularly shaped solid particles, it is ideal to use non-metallic materials such as rubber and engineering plastics to make the volute bushing. These materials have good elasticity and toughness, which can buffer the impact of solid particles to a certain extent, and also have good wear resistance and corrosion resistance. On the premise of ensuring the normal working performance of the pump body, the use of non-metallic materials can also reduce manufacturing costs and save expenses for enterprises.
When dealing with media where the solid particles have extremely irregular geometric shapes and a wide distribution of particle sizes, the material selection for the volute bushing needs to be more cautious. At this time, priority should be given to materials with high hardness and good wear resistance, such as hard nickel and high-chromium cast iron materials. With their excellent mechanical properties, these materials can effectively resist the severe impact and friction of solid particles in the slurry, significantly improve the wear resistance of the volute bushing, and ensure that it can maintain a long service life under harsh working conditions.
Adopting a reasonable anti-wear structure is an effective means to further reduce the wear of the volute bushing. Setting a lining on the flow-through parts of the pump is a common and effective anti-wear method. The lining material can be rubber, ceramics and other materials with outstanding wear resistance. Like a solid "armor", they are attached to the inner wall of the volute bushing, directly bearing the impact and friction of solid particles, thereby protecting the volute bushing itself and extending its service life.
Thickening the bushing and impeller is also an important measure to enhance wear resistance. By increasing the thickness of the volute bushing, its structural strength and anti-wear reserve can be improved, so that the bushing has a longer buffer period when facing wear. Similarly, thickening the impeller can also reduce its wear rate during contact with materials, indirectly reducing the working pressure of the volute bushing.
In addition, setting auxiliary blades and auxiliary impellers is also an ingenious anti-wear design. Auxiliary blades and auxiliary impellers can change the flow field distribution in the pump chamber, disperse the impact force of solid particles on the main blades and impellers, and transfer part of the wear risk to the auxiliary blades and auxiliary impellers. In this way, the friction and impact between the main impeller and the volute bushing are reduced, thereby reducing the wear degree of the volute bushing. Through these reasonable anti-wear structural designs, the durability and operational stability of the slurry pump can be comprehensively improved.
Strengthening the maintenance of the pump is the basic work to ensure the long-term stable operation of the volute bushing and the entire slurry pump and reduce wear. Enterprises should establish a sound pump maintenance system and implement regular inspection and maintenance work. During the inspection, focus on the wear of the volute bushing, and timely grasp the thickness change and surface damage degree of the bushing through visual inspection, measurement and other methods. At the same time, it is also necessary to closely monitor key indicators such as bearing temperature and shaft seal leakage. Abnormal changes in these indicators may indirectly reflect the working state of the volute bushing.
Once the volute bushing is found to be excessively worn or other abnormal conditions, measures should be taken immediately to deal with it. If necessary, the bushing should be replaced in time to avoid more serious equipment failures caused by ignoring minor problems. In addition, regular cleaning and lubrication of the pump are also essential links. Cleaning can remove residual solid particles and impurities in the pump chamber, reducing their continuous wear on the volute bushing; proper lubrication can reduce the friction resistance between various parts of the pump body, improve operating efficiency, and indirectly reduce the working burden of the volute bushing.
By strengthening maintenance, enterprises can timely discover and deal with potential fault hazards, control wear within a manageable range, maximize the service life of the volute bushing and slurry pump, and ensure the continuity and stability of production.
To sum up, the volute bushing, as a key wear part of the slurry pump, the improvement of its wear problem is a systematic project. Through the synergistic effect of various measures such as reasonable matching of the volute and the impeller, scientific selection of materials according to medium characteristics, adoption of effective anti-wear structures, and strengthening of daily maintenance, the wear resistance of the volute bushing can be significantly improved and its service life can be extended. This not only helps to improve the operating efficiency and stability of the slurry pump, reduce the maintenance cost and shutdown loss of enterprises, but also provides a strong equipment guarantee for the sustainable and healthy development of basic industries such as mining and metallurgy. In future practice, it is necessary to continue to explore and innovate wear control technologies, further optimize the design and application of volute bushings, and promote the development of slurry pump technology in a more efficient and durable direction.
Slurry Pumps Volute Liner Spare Parts Code List:
Volute Liner Code | AH Slurry Pump | Volute Liner Materials |
B1110 | 1.5/1B-AH | High chrome, Natural rubber, Polyurethane |
B15110 | 2/1.5B-AH | High chrome, Natural rubber, Polyurethane |
C2110 | 3/2C-AH | High chrome, Natural rubber, Polyurethane |
D3110 | 4/3C-AH, 4/3D-AH | High chrome, Natural rubber, Polyurethane |
E4110 | 6/4D-AH, 6/4E-AH | High chrome, Natural rubber, Polyurethane |
F6110 | 8/6E-AH, 8/6F-AH | High chrome, Natural rubber, Polyurethane |
G8110 | 10/8F-AH, 10/8T-AH | High chrome, Natural rubber, Polyurethane |
G10110 | 12/10F-AH, 12/10T-AH | High chrome, Natural rubber |
G12110 | 14/12F-AH, 14/12T-AH | High chrome, Natural rubber |
H14110 | 16/14TU-AH | High chrome, Natural rubber |
Volute Liner Code | HH Slurry Pump | Volute Liner Materials |
CH1110 | 1.5/1C-HH | High chrome |
DH2110 | 3/2D-HH | High chrome |
EH3110 | 4/3E-HH | High chrome |
FH4110 | 6/4F-HH | High chrome |
FH4110 | 6-H | High chrome |
Volute Liner Code | M Slurry Pump | Volute Liner Materials |
F8110 | 10/8E-M, 10/8F-M, 10/8R-M | High chrome, Natural rubber, Polyurethane |
F10110 | 12/10E-M, 12/10F-M | High chrome, Natural rubber, Polyurethane |
Volute Liner Code | L Slurry Pump | Volute Liner Materials |
AL2110 | 20A-L | High chrome, Natural rubber |
BL5110 | 50B-L | High chrome, Natural rubber |
CL75110 | 75C-L | High chrome, Natural rubber |
DL10110 | 100D-L | High chrome, Natural rubber |
EL15110 | 150E-L | High chrome, Natural rubber |
SL20110 | 200E-L | High chrome, Natural rubber |
SL30110 | 300S-L | High chrome, Natural rubber |
SL35110 | 350S-L | High chrome, Natural rubber |
TL40110 | 400ST-L | High chrome, Natural rubber |
TL45110 | 450ST-L | High chrome, Natural rubber |
UL55110 | 550TU-L | High chrome, Natural rubber |
E-mail: info@topslurrypumps.com
WhatsApp: +8613831153172
Tel.: +0086-14730674938
WeChat：+8613831153172
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The parts manufactured by us are not associated with, endorsed by, or sponsored or manufactured by the owners of the related trade marks given into this website or other documents.
Any use of OEM names, trademarks or other information is for reference only.
Hedunpump Is not affiliated nor a distributor for any pumps company.
The parts manufactured by us are not associated with, endorsed by, or sponsored or manufactured by the owners of the related trade marks given into this website or other documents.
Any use of OEM names, trademarks or other information is for reference only.
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