Re-flotation separation device for wide-size-fraction pre-separation and reverse flotation
A sorting device and reverse flotation technology, applied in flotation, solid separation, etc., can solve the problems of difficult bubble collision and adhesion, strong fluid turbulence, low kinetic energy, etc., and achieve secondary enrichment and large settlement area, lowering the grade effect
Active Publication Date: 2020-03-27
CENT SOUTH UNIV
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Problems solved by technology
Especially in the reverse flotation of bauxite and iron ore and desliming pretreatment before beneficiation, fine-grained gangue minerals are difficult to collide with and adhere to air bubbles due to their small mass and low kinetic energy, which results in low mineralization and flotation efficiency. Decline
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[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0027] Such as Figure 1-5 As shown, the present invention discloses a heavy flotation separation device for wide particle size pre-selection and reverse flotation, including a separation chamber 1 with a cavity inside, a stirring impeller 2 and a micro Bubble generating part 3, the bottom of sorting chamber 1 is provided with air inlet 4, and air inlet 4 links to each other with the external air pump, and the top of this sorting chamber 1 is provided with feed port 5, and the top of feed port 5 is provided with Mineralized bubble outlet 6, the microbubble generating part 3 is an inverted cone structure, the upper end of the microbubble generating part 3 faces the stirring impeller 2, and the lower end communicates with the bottom flow port 7 of the...
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The invention discloses a re-flotation separation device for wide-size-fraction pre-separation and reverse flotation. The re-flotation separation device comprises a separation chamber, and a stirringimpeller and a micro-bubble generating piece which are installed in the separation chamber. An air inlet hole is formed in the bottom of the separation chamber. A feed port is formed in the upper partof the separation chamber. A mineralized bubble outlet is formed above the feed port. The micro-bubble generating piece is of an inverted conical structure, the upper end of the micro-bubble generating piece faces the stirring impeller, the lower end of the micro-bubble generating piece is communicated with an underflow hole of the separation chamber, and micropores for generating micro-bubbles are formed in the micro-bubble generating piece. Mineralization and separation are carried out in a separation column, and the entrainment of foam products to large-density and large-size particles isreduced through the slope separation effect. The re-flotation separation device can be used for material separation in the mineral separation process and is particularly suitable for iron ore and bauxite reverse flotation operation and metal ore pre-separation and desliming operation.
Description
technical field [0001] The invention belongs to the technical field of mineral separation, in particular to a heavy-float separation device used for wide particle size pre-selection and reverse flotation. Background technique [0002] Flotation is a method of sorting by using the difference in surface properties between minerals, and gravity separation is a method of sorting by using the difference in density between minerals; because the target minerals, especially metal minerals and gangue minerals, often have surface properties, The difference between density and particle size. Making full use of the differences in physical and chemical properties between minerals in the particle separation process is the premise of strengthening mineral separation. How to construct a suitable force field environment during the sorting process and make full use of the differences in physical and chemical properties between minerals is a topic of common concern to scientific researchers. ...
Claims
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IPC IPC(8): B03D1/16B03D1/14
CPCB03D1/1462B03D1/16
Inventor卢东方王毓华郑霞裕刘振强褚浩然
OwnerCENT SOUTH UNIV