CN201079751Y - Self-balancing water-separating micro-bubble generation aeration flotation column - Google Patents

Abstract

The utility model discloses a self-balance water separating microvesicle generating inflation flotation column, which is characterized in that the utility model comprises a host machine, a foam overflow system, a microvesicle generating separator, a microvesicle generating system, and an automatic control liquid level type ore pulp governing mechanism, etc. A flotation column /a leaching tank/ an oxidation tank of the equipment technology of the utility model is used, and a great deal of complete coverage rising microvesicle without dead angles reversely flows with the descending ore pulp and generates from the bottom of the tank when the utility model works. The mixing effect of mineral particles is strengthened, the ore pulp does not sink in the tank or has the dead angles, and the flotation liquid level foam layer is very stable, so that ore concentrate product required can be obtained, and the flotation reclaim rate is improved. The residence time of a great deal of the microvesicle in the lixiviate tank is lengthened to cause the dissolution rate of the oxygen to be accelerated, and the utilization ratio of the oxygen can increase by 40percent, so that the oxidation reaction is more sufficient, the lixiviate velocity is higher and quicker, the purposes of strengthening oxidation lixivating and improving the reclaim rate, and then the benefit is improved.

Description

Self-balancing water isolation microbubble generation gas-filled flotation column

technical field

The utility model relates to a new process equipment for micro-bubble aeration of a three-impeller stirring flotation column/leaching tank/oxidation tank, specifically a self-balancing water isolation micro-bubble generation inflation flotation column, which is used for mineral processing equipment ( Flotation column / leaching tank / oxidation tank) for micro-bubble gas filling, which belongs to metallurgical technology.

Background technique

At present, with the expansion and sharp increase of mineral development and utilization, the cut-off grade of useful minerals has decreased. In order to obtain more useful minerals, the scale of ore dressing plants has become larger and larger. However, no major improvements and breakthroughs have been made in terms of stirring the pulp and aeration methods. The effective volume of a single machine cannot keep up with the development needs, the flotation effect is not good, and the power consumption is large. For example, the inflating method of the leaching tank/oxidation tank in the existing non-ferrous metal beneficiation and smelting plant is generally to insert several steel pipes to inflate. Oxidation rate, which affects the improvement of leaching/oxidation recovery.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the above-mentioned prior art, to provide a self-balancing water isolation microbubble generation inflation flotation column, which adopts a microbubble inflation distribution structure with a unique inflation dispersion design, and is used for supplying to the flotation column/ Microbubble aeration is carried out in the leaching tank/oxidation tank.

The technical scheme of the utility model is: a self-balancing water isolation micro-bubble generation inflatable flotation column, which is characterized in that it includes a main machine, a foam overflow system, a micro-bubble generation separator, a micro-bubble generation system and an automatic control liquid level pulp Regulating mechanism, where,

The main engine includes a stirring tank body, and the stirring tank body is equipped with a worm impeller stirring paddle, and the worm fan impeller stirring paddle is connected with the reduction device on the stirring tank body through a shaft.

The foam overflow system is set in the main machine, including the foam-pushing inverted cone tank on the upper part of the stirring tank. There is a concentrate ore discharge port,

The microbubble generation separator includes a microbubble inflatable conical tank, and the top of the microbubble inflatable conical tank is provided with a microbubble inflatable distributor. The microbubble inflatable distributor communicates with the stirring tank through surface micropores. The distributor is equipped with a support column tube, the upper end of the support column tube is connected to the inflatable distribution branch pipe, the end of the inflatable distribution branch pipe is connected to the microbubble inflatable distributor, the middle part of the support column tube is connected to the gas-water separation column tube, and the lower end of the support column tube is connected to There is a sewage sedimentation cone chamber,

The microbubble generation system includes an air flow meter and an air inlet connected to it, and communicates with the gas-water separation column through the air supply pipe,

The automatic control liquid level slurry adjustment mechanism includes a regulating valve, one end of the regulating valve is connected to a floating ball device, the floating ball device is located in the annular foam overflow chute, the regulating valve is connected to the tailings overflow pipe, and the tailings overflow pipe The other end communicates with the stirring tank body.

In addition, a pressure buffer system can also be provided, which includes a pressure buffer tank, a water supply faucet and a supplementary water tank connected thereto. The tank is connected.

The flotation column/leaching tank/oxidation tank produced by the equipment technology of the utility model produces a large number of fully covered and rising microbubbles from the bottom of the tank during operation, and flows in the opposite direction with the falling pulp, which strengthens the stirring effect of mineral particles, and the pulp does not There is no dead angle in the settling tank; the automatic balance of the outlet of the tailings slurry discharge pipe stabilizes the slurry liquid level, that is, the foam layer on the flotation liquid level is very stable, and the required concentrate product can be obtained, and the flotation recovery rate can be increased by 3%; The residence time of a large number of microbubbles in the tank is prolonged, so that the speed of dissolved oxygen can be accelerated, and the oxygen utilization rate can be increased by 40%, so that the oxidation reaction is more complete, the leaching speed is higher and faster, and the purpose of strengthening oxidative leaching and improving the recovery rate is achieved. Improved efficiency. Compared with the existing flotation column that adopts the slurry circulation charging method, the power consumption is saved by 80%, and the efficiency is increased by 20% compared with the flotation column that adopts the air compressor for air supply, and the investment is low, and automatic control can be realized.

Below in conjunction with accompanying drawing and embodiment the utility model is explained in detail.

Description of drawings

A kind of structural representation of Fig. 1-the utility model;

Fig. 2-G-G sectional view of Fig. 1;

Figure 3-Figure 1 is an enlarged view of the local structure;

Fig. 4 - Another structural schematic diagram of the utility model.

Description of drawings:

1 stirring tank, 2 reduction device, 3 worm impeller stirring paddle, 4 push foam inverted cone tank, 5 annular foam overflow chute, 6 concentrate discharge port, 7 micro-bubble aeration distributor, 7-1 Microhole, 8 air-water separation column tube, 9 air distribution branch pipe, 10 sewage sedimentation cone chamber, 11 manhole, 12 floating ball device, 13 regulating valve, 14 water supply faucet, 15 pressure indicator, 16 air flow meter, 17 inlet Air port, 18 supplementary water tank, 19 pressure buffer tank, 20 vacuum water jet pump, 21 water pump, A host, B foam overflow system, C micro-bubble inflatable cone tank, D micro-bubble generation system, E automatic liquid level control type Slurry adjustment mechanism, a flat column slurry distribution paddle, b support column tube, c air supply pipe, d water supply pipe, e tailings overflow pipe, f air supply pipe.

Detailed ways

Embodiment 1, as shown in Fig. 1-Fig. 3, the device is mainly composed of host machine A, foam overflow system B, microbubble generating separator, microbubble generating system D and automatic liquid level pulp regulating mechanism E, etc. in,

The main engine A includes a stirring tank body 1, on which a reduction device 2 composed of a motor and a vertical reducer is installed, and an upper, middle and lower three-layer worm impeller stirring paddle 3 is installed in the stirring tank body 1, wherein The uppermost worm impeller agitator 3 is additionally equipped with a flat column pulp distribution blade a, and the worm impeller agitator 3 is connected to the reduction device 2 through a shaft;

The foam overflow system B is set in the main machine A, and includes a foam-push inverted cone-shaped tank 4 installed on the upper part of the stirring tank 1, and an annular foam overflow chute 5 is arranged on the upper end of the foam-push inverted cone-shaped tank 4, The bottom of the annular foam overflow chute 5 is provided with a concentrate discharge outlet 6;

The microbubble generation separator is the main core structure of the device, which includes a microbubble inflatable conical tank C, a microbubble inflatable distributor 7 is arranged on the top of the microbubble inflatable conical tank C, and a sewage sedimentation device is installed at the bottom Cone chamber 10, as shown in Fig. 2 and Fig. 3, several micropores 7-1 are uniformly and densely distributed on the top of the chamber of microbubble inflating distributor 7, and micropore 7-1 communicates with stirring tank body 1. The distributor 7 is connected with a support column tube b, and the upper end of the support column tube b is connected to a plurality of inflatable distribution branch pipes 9, and the inflatable distribution branch pipe 9 communicates with the chamber of the microbubble inflatable distributor 7, and the middle part of the support column tube b communicates with air and water. Separation column tube 8, the lower end of supporting column tube b is connected with sewage sedimentation cone chamber 10, and sewage discharge valve is connected to sewage sedimentation cone chamber 10; there is also a manhole 11 for maintenance on the side of microbubble inflatable conical tank C ;

The microbubble generation system D includes an air flow meter 16, one end of the air flow meter 16 is connected to the air inlet 17, the other end is connected to the vacuum water jet pump 20 through a pipeline, and then communicates with the air-water separation column pipe 8 through the air supply pipe c , the vacuum water jet pump 20 is connected to the water pump 21 through a pipeline, and the other end of the water pump 21 communicates with the microbubble inflatable cone tank C through the water supply pipe d;

The automatic control liquid level pulp adjustment mechanism E includes a regulating valve 13, one end of the regulating valve 13 is connected to the floating ball device 12, the floating ball device 12 is located in the annular foam overflow chute 5, and the regulating valve 13 is connected to the tailings overflow pipe e , the other end of the tailings overflow pipe e communicates with the stirring tank body 1;

In addition, the device can also be provided with a pressure buffer system, as shown in the figure, comprising a pressure buffer tank 19, a replenishment faucet 14 and a supplementary water tank 18, the pressure buffer tank 19 communicates with the microbubble inflating distributor 7 through the air supply pipe f, The supplementary water tank 18 communicates with the microbubble gas-filled conical tank body C through the water supply pipe d.

working principle:

The ore pulp from the qualified particle size in the grinding and grading process is fed from the center through the push-foam inverted cone-shaped tank 4, and the deceleration device 2 drives the upper, middle, and lower three-layer worm impeller agitator 3 to run at a low speed. The column slurry distribution paddle a feeds in and mixes in the stirring tank 1. The slurry flows from top to bottom, and is circulated internally with the operation of the main impeller and the action of the wave baffle around the tank.

The micro-bubble inflatable cone-shaped tank C is filled with clear water, and after entering the water pump 21 to pressurize, it passes through the vacuum water jet pump 20, and under the action of water fluid variable-diameter throat jetting, the air is sucked in from the air inlet 17, and the air is sucked in. The volume is measured by the air flow meter 16, and the air inlet 17 is controlled by valve adjustment; the two-phase fluid mixed with air and water enters the air-water separation column tube 8 through the air supply pipe c, and the water flows out from the water hole in the middle section of the support column tube b, Enter the micro-bubble inflatable conical tank C for recycling, and the air then passes through a number of inflatable distribution pipes 9 and enters the chambers of the micro-bubble inflatable distributor 7. With the increase of air volume and pressure, the air overcomes the agitation tank The pulp pressure in 1 overflows from several inflatable micropores 7-1 to achieve the purpose of inflating the microbubbles.

A large number of ascending micro-bubbles and descending mineral particles act in reverse flow, and have a physical and chemical reaction with the flotation reagent, and the useful minerals float up with the joint action of the collector and the foaming agent, and in the foam overflow system B on the upper part of the stirring tank 1 A foam layer with a certain stable thickness is formed. Under the action of the foam-pushing and inverted cone-shaped tank body 4, the formed concentrate foam overflows along the peripheral ring-shaped foam overflow chute 5, and flows into the next operation through the concentrate discharge port 6. .

The flotation tailings are discharged into the next operation process through the tailings overflow pipe e at the lower part of the stirring tank body 1; the top of the tailings overflow pipe e is equipped with an automatic liquid level control system composed of a regulating valve 13 and a floating ball device 12 The pulp adjustment mechanism E can adjust the liquid level of the pulp in the stirring tank 1, so as to control the thickness of the upper foam layer, operate and adjust the overflow of useful minerals in flotation, so as to achieve the goal of controlling the concentrate grade and recovery rate. Purpose.

The purpose of setting up the pressure buffer system is to prevent the consumption of circulating water in the microbubble inflatable conical tank C, and after the air in each chamber of the microbubble inflatable distributor 7 is reduced when the microbubble inflator is stopped, the upper part of the agitated tank will In 1, the ore slurry infiltrates for timely water replenishment; the water replenishment faucet 14 on the replenishment water tank 18 is in a normally open state, and the overflow water can enter the grinding cycle for use. A pressure indicating gauge 15 can be installed on the pressure buffer tank 19 and the pipeline to observe the pressure situation of the microbubble inflation system to judge whether the work is normal, so as to operate and adjust.

The lower part of the micro-bubble inflatable conical tank C is provided with a sewage sedimentation cone chamber 10 and a sewage valve. After the sewage is discharged, the manhole 11 is opened to enter the tank for internal observation and maintenance of the micro-bubble inflatable equipment system.

Embodiment 2, referring to Fig. 4, the structure of this example is basically the same as that of the previous example, the difference is that instead of using the water pump 21 and the vacuum water jet pump 20, the air can be directly supplied by the air compressor, and the air passes through the air inlet 17 , air flow meter 16, air supply pipe c, enter the air-water separation column tube 8, and then pass through some inflation distribution branch pipes 9, enter in each chamber of the microbubble inflation distributor 7, overflow from the inflation micropore 7-1, To achieve the purpose of microbubble inflation.

The utility model can be fully integrated with the existing equipment such as flotation column/leaching tank/oxidation tank, which can realize large-scale, and is very worthy of popularization and application in non-ferrous metal dressing plants, smelting plants, biological bacteria oxidation plants, etc. It has broad prospects for popularization and application for large-scale mining and dressing mining enterprises.

Claims (2)

1. a self-balancing Hengshui isolates microvesicle generation air flotation post, it is characterized in that, it comprises that main frame (A), foam overflow system (B), microvesicle generation separator, microvesicle generation systems (D) and control liquid-level type ore pulp governor motion (E) automatically, wherein,

Main frame (A) comprises stirring cell body (1), stirs in the cell body (1) and is provided with snail Vane wheel paddle (3), and snail Vane wheel paddle (3) is connected by the deceleration device (2) on axle and the stirring cell body (1),

Foam overflows system (B) and is located in the main frame (A), comprise that being located at pushing away of stirring cell body (1) top steeps back taper type cell body (4), the upper end that pushes away bubble back taper type cell body (4) is provided with annular foam overflow trough (5), and annular foam overflow trough (5) is provided with concentrate gape (6)

Microvesicle generation separator comprises that microvesicle inflates tapered cell body (C), the top that microvesicle is inflated tapered cell body (C) is provided with microvesicle inflation distributor (7), microvesicle inflation distributor (7) is communicated with stirring cell body (1) by surface micropore (7-1), on microvesicle inflation distributor (7), be provided with supporting column jecket (b), supporting column jecket (b) upper end is communicated with inflation dispensing branch (9), the end of inflation dispensing branch (9) communicates with microvesicle inflation distributor (7), middle part at supporting column jecket (b) is communicated with gas-water separation column jecket (8), the lower end of supporting column jecket (b) is connected with blowdown precipitation awl chamber (10)

The air inlet (17) that microvesicle generation systems (D) comprises mass air flow sensor (16) and is attached thereto, and be communicated with gas-water separation column jecket (8) by air feed pipe (c),

Automatically control liquid-level type ore pulp governor motion (E) comprises control valve (13), one end of control valve (13) connects floating ball device (12), floating ball device (12) is positioned at annular foam overflow trough (5), go up connection mine tailing overflow pipe (e) at control valve (13), the other end of mine tailing overflow pipe (e) is communicated with stirring cell body (1).

2. self-balancing according to claim 1 Hengshui isolates microvesicle generation air flotation post, it is characterized in that, be provided with the pressure buffer system, comprise pressure surge tank (19), moisturizing halter (14) and connected subsidiary water tank (18), pressure surge tank (19) is communicated with microvesicle inflation distributor (7) by air feed pipe (f), and subsidiary water tank (18) is inflated tapered cell body (C) by feed pipe (d) and microvesicle and is communicated with.

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