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Improve the separation performance of traditional hydrocyclone, so as to improve the separation efficiency of heavy medium

Number of visits: Release date: 17:07, December 24, 2019
            Hydrocyclone It is a widely used separation and classification equipment, which is based on the principle of centrifugal sedimentation. When the two-phase mixture to be separated enters the hydrocyclone tangentially from the periphery of the hydrocyclone at a certain pressure, a strong three-dimensional elliptical strong rotational shear turbulent motion will occur. Due to the difference in particle size between coarse and fine particles, the size of which is affected by centrifugal force, centripetal buoyancy and fluid drag force is different, so most of the coarse particles are discharged through the bottom flow port of the cyclone, while most of the fine particles are discharged by the overflow pipe, so as to achieve the purpose of separation and classification.
The utility model relates to a spiral groove hydrocyclone with external projection. This technology has outstanding technical advantages. The existing hydrocyclones are all locally improved built-in hydrocyclones. The internal components of hydrocyclones have great interference and destructiveness to the free rotating flow field, and the overflow and coarse phenomenon are serious, and the space for improving the separation efficiency is limited.
          The hydrocyclone developed by this technology can guide the separation of heavy medium and light medium without changing the strong swirling flow field inside the hydrocyclone, reduce the probability of the separated heavy medium returning to the light medium and guide the enrichment of heavy medium; meanwhile, the underflow is at the bottom of the spiral groove and the complete cone bottom design can avoid the generation of "air column" which is not conducive to separation in traditional hydrocyclones, It can greatly improve the separation performance of the traditional hydrocyclone, so as to improve the separation efficiency of heavy medium and reduce the separation diameter, and reduce the phenomenon that is not conducive to separation.
The technology has obvious market advantages and industrialization value. As one of the important separation and classification equipment in industry, hydrocyclone has been widely used in chemical industry, petroleum industry, metallurgy industry, papermaking industry, food industry, medicine industry, environmental protection industry, building materials and coal industry. In the field of mineral processing, hydrocyclone is widely used in classification, separation, concentration, desliming and other operations in almost every concentrator.
In recent years, it has been further applied to the separation operation in bioengineering. The hydrocyclone can be used for the classification and separation of ultrafine particles (PM2.5 or even submicron particles), such as the recovery of valuable resources such as kaolin and catalyst, the cheap recovery of microalgae, the separation of oil sands in offshore oil fields, and the separation of immiscible liquid-liquid phases in food and pharmaceutical industries, etc., which has broad market application prospects and investment value.

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