The ceramic slurry pump has strong wear resistance, and the service life of flow passage parts is 3.51 times of cr30 wear-resistant alloy.
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1.Strong wear resistance, the life of flow passage parts is 3.51 times of cr30 wear-resistant alloy;
2.Excellent chemical stability, suitable for ph0-12 acid and alkali (except hydrofluoric acid), solvent, and strong oxidation resistance;
3.High concentration and a certain concentration of large particle impact resistance, some products can challenge a rough grinding conditions;
4.Excellent cavitation resistance;
5.High temperature thermal shock resistance;
6.Small volume density, lighter impeller weight and higher efficiency;
Disadvantage of ceramic slurry pump
1.The material of the flow passage parts of the traditional slurry pump is high chromium wear-resistant alloy, rubber or polyurethane elastomer, with short service life, only 1-3 months under severe working conditions, and high cost. With the development of science and technology, new materials and products such as silicon carbide slurry pump (SIC), silicon nitride combined silicon carbide ceramic slurry pump (Si3N4 + SiC) are constantly emerging, using sintering or similar epoxy resin pouring workers This kind of slurry pump still belongs to ceramic products.
2.The biggest weakness still lies in its brittleness. In recent years, ceramic products have made some progress in material toughness, but its impact toughness against large particles is still weak, which is still not applicable in the similar rough grinding conditions. 3.Most of these products are used in the wet desulfurization and chemical slag slurry industries. Although some products are used in the mining and beneficiation industries for the transportation of fine-grained slurry such as tailings slurry and concentrate slurry, due to the unstable factors of large particles in the slurry, these products still can not ensure the process stability.
1. Casting advanced ceramic materials: the wear-resistant ceramics such as silicon carbide are mixed with binder according to the special particle grading, and then molded and solidified in the precise model mold by the vacuum casting process; and then processed by the diamond tool with precise size;
2. Advanced ceramic materials of sintering type: the ceramic powder is mixed with special binder and catalyst according to the special gradation, and the blank is made by the forming process. The blank is put into the high-temperature sintering furnace for sintering, and then the precise size processing is carried out by the diamond tool; Silicon carbide crystal has a Mohs hardness of 9.7, which is close to diamond hardness, and is very inert. It has a long-lasting reliability unmatched by metals in harsh abrasion and corrosion environment (pH 0-12). Casting advanced ceramic materials can be used not only for casting new pump parts in the factory, but also for repairing worn core parts in the field. The advanced ceramic materials of sintering type make use of special particle grading and additive formula, forming process and optimized product structure design to ensure that the slurry pump products have excellent wear-resistant and corrosion-resistant performance and can withstand high-strength large particle impact to a certain extent, and expand the application scope of this slurry pump type.
3. Silicon carbide or silicon nitride combined silicon carbide ceramic slurry pumps produced by sintering or epoxy resin like casting process are still ceramic products, and their impact toughness is still weak, and they are still not applicable under the condition of a stage of coarse grinding and large particles. AVIC new materials, based on its own research and development of ACC / ACS advanced ceramic materials, has made great efforts to improve the materials through technical breakthrough Toughness and overall reliability of the pump, ACM advanced composite material has been developed and applied to the flow passage parts of ACP advanced slurry pump of its company, which is gradually being popularized and applied to the first stage rough grinding of iron ore.
| Casing | Cast iron |
| Impeller | Ceramic |
| Volute liner | Ceramic |
| Throat bush | Ceramic |
| Expelller | 27% chrome white iron |
| Shaft | 4140 high tensile steel |
| Cover plate | Cast iron |
| Stuffing box | Cast iron |
| Shaft sleeve | 420 stainless steel |
Name:Tammy
Email:tammy@mstpump.cn
Tel:008615175232736
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