It is understood that the diaphragm pump is the core equipment for long-distance pipeline transportation and pressure injection feeding and transportation of solid-liquid two-phase medium. The use of oil as the medium to push the Rubber diaphragm to make concave and convex motions makes the volume of solid-liquid two-phase medium in the pump body periodically change and complete delivery. It can carry out long-distance, large-flow and high-concentration transportation. The main solid-liquid two-phase media include alumina, aluminum ore pulp, iron tailings, iron concentrate, red mud, coal water slurry, phosphate slurry and blast furnace mud, etc. It is widely used in non-ferrous metals, metallurgy, mining, chemicals, building materials, coal, coal-to-oil, coal chemical, power and environmental protection.
It is predicted that the current domestic demand for diaphragm pump market can reach several billion yuan, and the international market demand is even greater. In 2009, China National Color Pump Industry Co., Ltd. obtained a national policy subsidy of 24 million yuan. It is currently undergoing technological transformation and equipment upgrades. It plans to build a diaphragm pump professional R&D base within three to five years.
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