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Rotational flow and jet flow inflating method and device thereof

An inflatable device and a jet technology, which are applied in swirling devices, devices whose axial direction can be reversed, solid separation, etc., can solve the problems of residual kinetic energy, reduced energy consumption of cyclones, and not being directly utilized. Achieve the effects of improving the aeration efficiency, saving jet kinetic energy, and simplifying the beneficiation process

Active Publication Date: 2012-01-11
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Someone clamped the blades in the cyclone, proving that the blades can reduce the energy consumption of the cyclone, and there is still residual kinetic energy in the overflow, which has not been directly used

Method used

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  • Rotational flow and jet flow inflating method and device thereof
  • Rotational flow and jet flow inflating method and device thereof
  • Rotational flow and jet flow inflating method and device thereof

Examples

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Embodiment Construction

[0021] The present invention is described in detail below in conjunction with accompanying drawing:

[0022] figure 1 As shown, the working principle diagram of the cyclone charging of the present invention. When the cyclone is working, such as classifying the flotation feed or re-selecting the ore in the flotation cycle, the raw ore slurry 10 is fed into the cyclone tangentially from the cyclone inlet 1 by a pump. A swirling flow is formed in the swirler, coarse particles or heavy products 11 are discharged into the atmosphere from the bottom flow port 2, and the remaining material 12 rotates and rises into the overflow pipe 3. The outlet runs through the air column 14 of the overflow pipe; the rotating pulp coming out of the overflow pipe meets the mixing blade 4 and is forcibly divided into four streams of pulp 15, which are entrained in air and strongly mixed with the air to form a gas-liquid-solid The strongly turbulent flow 16 of the three-phase mixture enters the jet ...

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PUM

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Abstract

The invention provides an air inflation method and a device thereof for a flotation column. A whirlcone is combined with flotation air inflation, and by utilizing the characteristic that an air column exists inside the whirlcone during operation, the air column is guided out along with the overflow of the whirlcone and is thoroughly mixed with mine slurry; and then the dynamic power of the overflow of the whirlcone is utilized to jet currents, thereby realizing the air inflation of the flotation column and other kinds of equipment. The invention comprises a whirlcone, mixed vanes, a jet pipe,a hollow throat and a diverging pipe, wherein the mixed vanes are fixed at the outlet of an overflow pipe of the whirlcone, rotary mine slurry flowing out from the overflow pipe comes in contact withthe mixed vanes and are enforcedly divided into four strands of mine slurry flows, and air is involved in and intensively mixed with the mine slurry flows, thereby forming three-phase (air-liquid-solid) mixed flows; and the mixed flows carry great dynamic power to flow into the jet pipe, and then are sequentially led through the hollow throat and the diverging pipe, thereby completing the processes of air inflation and mineralization. The device has the function of grading or sorting, and can be combined with other kinds of sorting equipment to be used, thereby simplifying the mineral processing technology.

Description

technical field [0001] The invention belongs to the field of mineral processing, and relates to a swirl and jet aeration method for ore dressing or coal preparation and a device thereof. The aeration device is an aeration device for a flotation column and can be used for sweeping flotation circulating pulp. Background technique [0002] The ejector is one of the commonly used aeration equipment for flotation column, because it can achieve the mineralization of raw materials while inflating, so it can greatly reduce the height of the flotation column. In order to improve the inflation performance of the ejector, the ejector can be partially modified, such as using the swirling flow jet to inflate. The swirl force field flotation column described in patent ZL 2005200005393 uses a swirl suction jet. The swirl suction jet is provided with a spiral deflector on the inner wall of the conical nozzle to change the straight jet flow into a swirling jet flow. , and its inflation effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/14B04C9/00B04C5/00
Inventor 樊民强杨宏丽董连平安彩红张妍琴
Owner TAIYUAN UNIV OF TECH
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