Lining of dredge and slurry pumps
The transportation of slurry, consisting of fine soil particles and liquid, in the mining sector, used for the beneficiation of metal minerals and in other production operations, is effectively carried out with the use of dredging pumps. However, overcoming the high abrasiveness of such material poses a significant challenge, as equipment in contact with the transported slurry experiences substantial wear.
The most wear-prone elements of dredging pumps are made of materials with high wear resistance, with damaged parts being quickly replaceable. Critical components of the dredging pump are protected by special reinforced armor plates, ensuring a long operational life of the device.
Additionally, these pumps can be supplemented with cleaning systems to prevent potential clogging and ensure stable functionality. Despite all protective measures taken, the components of dredging pumps are heavily influenced by the working environment, including hydroabrasive wear, cavitation, and mechanical wear.
Hydroabrasive wear is the main hazard for elements of the dredging pump that come into contact with slurry. The degree of wear is generally determined by the properties of the slurry and the characteristics of the mineral particles. In this context, the wear resistance of pump components plays a crucial role. This type of wear can be both general and localized, depending on the degree and uniformity of thinning of the parts.
Components of dredging pumps are typically made of alloy steel and then undergo heat treatment to increase their mechanical stability. Alloying elements such as chromium, nickel, vanadium, tungsten, silicon, and manganese are used to enhance the properties of the steel. The use of cast iron is limited due to its insufficient wear resistance. Rubber lining of certain parts of the pump can be effective in some cases but is not recommended for working with slurry containing large particles.
Leveraging its extensive experience in critical wear protection technology, Weartech offers customers advanced lining technology for dredging pumps using superhard compounds, proven to maintain the functionality of dredging and slurry pumps in harsh production environments. Lining and refurbishment of dredging pumps with the application of silicon and zirconium oxides ensure high durability, especially in the hydraulic transport of abrasive materials. This type of lining is distinguished by its reliability, long service life, and ease of maintenance.
Silicon oxide-based lining is actively used by our company to protect shut-off valves, flow elements of dredging pumps, and other areas exposed to abrasive wear.
For the repair of a dredging or slurry pump, please contact Weartech via the provided contact details or email.
The exceptional operational properties of "Sand Nozzles" for hydrocyclones, made of Silicon Carbide, are due to the careful selection of superhard particle sizes, strong bonding, heat treatment, and strict quality control at all stages of production.
Weartech's extensive experience in the use and application of Silicon Carbide products ensures long service life at relatively low costs.
