Ceramic pump materials offer enhanced performance, low wear, high temperature resistance, corrosion resistance and low media contamination.
In general, ceramic materials are extremely hard, have a high melting point, wear resistance, oxidation resistance and corrosion resistance and retain these properties even at elevated temperatures. Ceramics are chemically inert and can withstand most solvents, acids and alkaline solutions.
These properties often make ceramics an ideal material of construction for certain pump components such as plungers, check valve balls, impellers and bushings. Ceramics can be manufactured to tight tolerances and clearances of 2 to 5 microns. The tight clearances make the pump virtually leak-free, eliminating the need for external seals. Ceramics also typically have minimal friction. Corrosion and wear resistance are influential factors in the selection of ceramic pump materials and components.
Ceramic Slurry Pump
Yijia horizontal ceramic slurry pump series is one of the most comprehensive centrifugal slurry pump series in the world, suitable for mining, chemical and industrial applications. Our horizontal slurry pumps are designed for ultra-heavy applications, such as mill unloading, processing plants and tailings, high-pressure pipelines, and other special applications.
These applications often require very large pumps which are subjected to high levels of wear and tear of different types.
- Planing wear occurs when rough, angular particles tear fragments from the wear surface.
- Abrasive wear where fine particles crush between two surfaces in close proximity, such as the gap between the impeller and the front and rear wear plates, or the housing itself.
- Scouring wear caused by solid particles striking the wear surface.
In most of these applications robust construction materials are required, including metal linings and/or wear plates with Ni-Hard and heat-treated high-chromium iron. Natural rubber and other elastomers are also often used as liners for abrasive services, provided they are chemically compatible with the slurry.
Ceramic Slurry Pump
It is worth noting that hard metal and rubber impellers cannot be machined to the necessary diameter to meet the required operating conditions. They are therefore traditionally belt driven and the change of operation is achieved by varying the pulley ratio to provide the required speed.
In addition to centrifugal designs, the slurry pump market uses many other pump types to varying degrees.
While solids are often considered to be a problem to deal with, in many applications they are an important aspect of pumping and water is simply used as a means of transport to make the slurry pumpable. In some cases it is also necessary to protect the solids from damage.
A popular option for such applications is the recessed impeller (or vortex) design, which positions the impeller in a recessed position in the casing outside the normal flow pattern in the pump.
Vertical Centrifugal Ceramic (SIC) Sump Pump
The impeller creates a vortex in the fluid within the pump casing so that most solids do not come into contact with the impeller. While this tends to reduce wear on the impeller, it also minimises any damage to solids.
One original diaphragm pump design actuates a single large diaphragm in a horizontal housing by means of a spring or linkage mechanism. Many of these are still in use in the municipal market. Newer designs include the pneumatic double diaphragm pump, which has become an industrial standby pump although it is limited to low pressure applications and provides a pulsating flow.
The progressive cavity pump has recently been developed for the slurry market in one place, providing a smooth, pulsation-free flow. These pumps are particularly effective when pumping thicker sludge containing a limited number of small solid particles. They typically operate at speeds of less than 300 rpm. to minimise wear.
If you need a slurry pump, make sure your slurry pump supplier knows your industry and can provide one of the many types required for your particular application. If you want to get more information about best slurry pump for sale, welcome to contact us today or request a quote.