CN107225049A - A kind of Self inhaling type cyclone-static microbubble floatation column - Google Patents
A kind of Self inhaling type cyclone-static microbubble floatation column Download PDFInfo
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- CN107225049A CN107225049A CN201710614927.8A CN201710614927A CN107225049A CN 107225049 A CN107225049 A CN 107225049A CN 201710614927 A CN201710614927 A CN 201710614927A CN 107225049 A CN107225049 A CN 107225049A
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- cylinder
- flotation column
- cone
- pipe
- mineral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/24—Pneumatic
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Abstract
The present invention relates to preparation equipment technical field, especially a kind of Self inhaling type cyclone-static microbubble floatation column, it includes frame and flotation column body, and flotation column body is made up of cylinder and cone；Cylinder top is configured with foam tank, concentrate wash tub pipe and selected wash tub pipe, and the bottom land of foam tank is exported provided with concentrate；Provided with mine tailing outlet on the downside of cylinder；The bottom of cone is provided with gape；On the side wall of cone, it is in horizontal arrangement and the mineral-feeding pipe tangent with the conical surface of cone to be circumferentially disposed with some, and mineral-feeding pipe has venturi tube structure, and air intake is provided with its trunnion；Provided with the middling cycle pipe arranged along its center axis in flotation column body；Downside in cylinder, is evenly arranged some pieces along its center axis and erects straight arranged stabilier；The present invention is simple in construction, with low cost, not only solves the problem of easily deep gouge occurs for flotation column, and flotation efficiency and the rate of recovery to mineral has been significantly increased, with higher market value.
Description
Technical field
The present invention relates to preparation equipment technical field, especially a kind of Self inhaling type Cyclonic-static fine-bubble flotation column.
Background technology
Currently, flotation column is widely used in industrial ore dressing as a kind of efficient floatation equipment.Flotation column is by its air inlet
Type division is gas-liquid mixed and the major class of air-spray two, and wherein gas-liquid mixed type flotation column provides air, air for Self inhaling
Jet flow type flotation column provides compressed air for blower fan.
Cyclonic-static fine-bubble flotation column is a kind of domestic advanced gas-liquid mixed type flotation column developed, its primary structure
Occur including post separation section 16, cyclonic separation section 17, bubble and 18 3 parts of pipe stream mineralising section, referring to Fig. 1.The post separation section
Positioned at flotation column cylinder top, at the top of post separation section, foam tank, concentrate wash tub pipe and selected wash tub pipe are provided with,
The bottom land of foam tank is exported provided with concentrate, and the middle and upper part of post separation section is provided with mineral-feeding pipe.The cyclonic separation section is located at cylinder
Bottom, the hydrocyclone structure being connected using post-cone.From rotational flow sorting angle, eddy flow of the post separation section equivalent to amplification
The overflow pipe of device, in the bottom of post separation section provided with mine tailing outlet, a chats outlet and No. two chats outlets, wherein in No. two
The proportion of the chats of ore deposit outlet discharge is more than the chats of a chats outlet discharge.The bubble occurs to be used for pipe stream mineralising section
Middling cycle, includes the bubble generator and mineralising pipe being individually arranged in outside the cylinder of flotation column, one end of mineralising pipe passes through
Pipeline connects the outlet of chats and No. two chats outlets, the outflow port of mineralising pipe tangentially with cyclonic separation section cylinder phase
Even, tangentially it is fed equivalent to cyclone.Bubble generator connects mineralising pipe by pipeline, for mineralising Guan Zhongtong
Enter air.
Cyclonic-static fine-bubble flotation column operation principle is：From the rotational flow sorting unit based on bispin flow structure.One
Cyclonic separation unit is by the cyclone separator of major diameter and the cyclone separator group of several minor diameters around it
Into.Cyclone separator overflow enters cyclone separator in pan feeding form, and underflow discharge turns into true tailings；Cyclone separator is located at
Post separation unit center, and the overflow of post separation chats and cyclone separator is further separated into two parts, i.e. overflow supplies post
Separation is further selected, and underflow is further sorted with circulating ore pulp form for flotation tube device.
However, there are the following problems for existing Cyclonic-static fine-bubble flotation column：
(1) when handling big proportion or coarse grain ore, easily occurs deep gouge in the bottom of flotation column.
(2) flotation column auxiliary equipment is more, cost is high, and equipment needs 2 sand pumps to support the use, and a conduct is to mining, and one
Platform is used as middling cycle and bubble generator.
(3) foam levels skewness, due to the effect of centrifugal force, the ore pulp circled is always from center to week
Side is moved, and the equipment is periphery feed in cyclonic separation section, and solid-liquid-gas is become from flotation column periphery into center moving process
Obtain more difficult, so as to cause foam levels skewness.
(4) the mineral-feeding pipe slave unit top feed of flotation column, and bubble generator is located at equipment bottom, ore pulp is inverse with bubble
In flow direction, in order to increase bubble and ore particle collision frequency, the height of equipment need to be increased, thus increase equipment manufacturing cost and
The difficulty of manufacture, while the lift and factory building height of sand pump need to be increased.
(5) ore dressing application is restricted, because the ore dressing principle of flotation column is contacting using mineral density and floatability,
Flotation is combined with reselecting method, the intensified sorting reclaim mechanism that multiple mineralising mode is core, the mineral of big proportion is formed
As mine tailing, the mineral of small proportion turn into concentrate, therefore are more than in mine tailing density or during close to froth pulp density, can be effective
Ground separates mine tailing with froth pulp, such as coal separation；And when mine tailing density is less than froth pulp density, then recovering effect is relative
It is poor.
(6) Mineral out position is not reasonable, and chats is generally intergrowth, crosses coarse grain monomer, can stick on bubble,
But it is not sufficiently stable, is easily come off from bubble, therefore chats is generally present in ore pulp and foam intersection, i.e. its upper side, and
For existing flotation column, chats is the bottom output from cylinder, can further be optimized.
The content of the invention
It is this present invention aim to solve the above mentioned problem present in existing Cyclonic-static fine-bubble flotation column
There is provided a kind of simple in construction, with low cost, flotation effect good Self inhaling type Cyclonic-static fine-bubble flotation column.
The present invention concrete scheme be：A kind of Self inhaling type Cyclonic-static fine-bubble flotation column, including frame and it is fixed on machine
Flotation column body on frame, flotation column body is made up of upside cylinder and downside cone；Cylinder top is configured with foam tank, concentrate
Wash tub pipe and selected wash tub pipe, the bottom land of foam tank are exported provided with concentrate；The side wall of cylinder lower end is exported provided with mine tailing；
The bottom of cone is provided with gape；It is characterized in that：On the side wall of cone, be circumferentially disposed with some in horizontal arrangement and with
The tangent mineral-feeding pipe of the conical surface of cone, mineral-feeding pipe has venturi tube structure, and is provided with its trunnion air intake；In flotation
Provided with the middling cycle pipe arranged along its center axis in post body；Downside in cylinder, is evenly arranged along its center axis
Some pieces of stabiliers, every piece of stabilier is in vertical arrangement.
Provided with the tailing tank that top is open on cylinder madial wall in the present invention, and the opening end of tailing tank just to
Column side wall is in ramp structure；The mine tailing outlet is arranged in the bottom of tailing tank；The open end position of tailing tank is higher than described
The upper end of stabilier.
The height of heretofore described cylinder is less than 2 with diameter ratio；The upper end of the middling cycle pipe is arranged on cylinder
It is interior, gape of the lower end close to cone base.
Heretofore described mineral-feeding pipe is provided with four, and four mineral-feeding pipes are arranged in same level, per adjacent two
In 90 ° of angles between mineral-feeding pipe；The stabilier is provided with 5~8 pieces.
Heretofore described mine tailing, which is exported, is equipped with mine tailing regulating valve, the pipeline docked in gape on docked pipeline
It is upper that ore drawing gate is housed.
Beneficial effects of the present invention are as follows：
(1) present invention is simple in construction, ingenious in design, in the existing Cyclonic-static fine-bubble flotation column of mineral-feeding pipe collection of the present invention
The structure and function of getter device, bubble generator and mineral-feeding pipe reduce the configuration to related auxiliary equipment in one, reduction
Equipment cost, improves energy-saving effect, and passes through the tangential of the mineral-feeding pipe and feed at a high speed so that ore pulp is in flotation column sheet
Make centrifugal motion in vivo, effectively prevent the problem of easily deep gouge occurs for flotation column body contents；
(2) present invention limits ore pulp and makees high speed circular motion in cylinder, it is therefore prevented that gas by configuring stabilier in cylinder
The merger of bubble and top " magic flower ", so that bubble is uniformly distributed in the horizontal direction in cylinder, and form substantial amounts of microvesicle,
And then the probability that ore particle is contacted with microvesicle is increased, improve the efficiency of the separation of gangue mineral；
(3) present invention is improved by setting tailing tank, and to the structure of the column side wall on the upside of tailing tank, it is ensured that entered
Bubble in tailing tank can be floated up in cylinder along ramped side walls again, it is to avoid the ore particle adhered on bubble is as mine tailing
And discharge, so as to improve the rate of recovery of mineral；
(4) middling cycle pipe of the present invention is arranged in flotation column body, and utilizes upper and lower sides ore pulp in flotation column body
Pressure differential（The hydraulic pressure of upside ore pulp is more than the hydraulic pressure of downside ore pulp）The self-loopa of ore pulp is realized, additional auxiliary is effectively prevent
Equipment and increased energy consumption；
(5) present invention is easily achieved maximization production operation, and due to being configured in structure, the height and diameter ratio of cylinder
Less than 2, the requirement this greatly reduces supporting factory building to height, so as to reduce corresponding input cost.
Brief description of the drawings
Fig. 1 is the structural representation of existing Cyclonic-static fine-bubble flotation column；
Fig. 2 is the cross-sectional view of the present invention；
Fig. 3 is Fig. 2 A-A views.
In figure：1-frame, 2-flotation column body, 2a-cylinder, 2b-cone, 3-foam tank, 4-concentrate flushing water
Pipe, 5-selected wash tub pipe, the outlet of 6-concentrate, the outlet of 7-mine tailing, 8-mineral-feeding pipe, 9-air intake, 10-middling cycle
Pipe, 11-stabilier, 12-tailing tank, 13-mine tailing regulating valve, 14-gape, 15-ore drawing gate, 16-post separation section,
17-cyclonic separation section, 18-bubble occurs and pipe stream mineralising section.
Embodiment
Referring to Fig. 2-3, a kind of Self inhaling type Cyclonic-static fine-bubble flotation column, including frame 1 and be fixed in frame 1
Flotation column body 2, flotation column body 2 is made up of upside cylinder 2a and downside cone 2b, the height and diameter ratio of its middle column body
Less than 2；Cylinder 2a tops are configured with foam tank 3, concentrate wash tub pipe 4 and selected wash tub pipe 5, and the bottom land of foam tank 3 is provided with
Concentrate outlet 6；The side wall of cylinder 2a lower ends is provided with mine tailing outlet 7；Cone 2b bottom is provided with gape 14, and gape 14 is used
In facilitating staff to overhaul the internal structure of flotation column body 2, and carry out when there are related accidents emergent ore discharge；
On cone 2b side wall, it is in horizontal arrangement and the mineral-feeding pipe 8 tangent with the cone 2b conical surface to be circumferentially disposed with some, to ore deposit
Pipe 8 has venturi tube structure, and provided with air intake 9 at its trunnion；It is provided with flotation column body 2 along its center axis
The middling cycle pipe 10 of arrangement；Downside in cylinder 2a, some pieces of stabiliers 11 are evenly arranged along its center axis, and every piece steady
Plate 11 is flowed in vertical arrangement.
Tailing tank 12 in the present embodiment provided with top opening on cylinder 2a madial walls, and the opening end of tailing tank 12
Just to cylinder 2a side wall be in ramp structure；The mine tailing outlet 7 is arranged in the bottom of tailing tank 12；Tailing tank 12 it is spacious
Mouth end position is higher than the upper end of the stabilier 11.
The upper end of middling cycle pipe described in the present embodiment 10 is arranged in cylinder 2a, row of the lower end close to cone 2b bottoms
Mine mouth 14.
Referring to Fig. 3, mineral-feeding pipe 8 described in the present embodiment is provided with four, and four mineral-feeding pipes 8 are arranged in same level,
In 90 ° of angles between per two adjacent mineral-feeding pipes 8；The stabilier 11 is provided with 5~8 pieces（Specially 8 pieces）.
Mine tailing regulating valve 13 is housed on the pipelines that are docked of the outlet of mine tailing described in the present embodiment 7, gape 14 pair
Ore drawing gate 15 is housed on the pipeline connect.
Operationally, four mineral-feeding pipes 8 are connected the present invention with a main mineral-feeding pipe respectively, and sand is housed on main mineral-feeding pipe
Pump, because mineral-feeding pipe 8 is entered after small diameter pipeline using Venturi tube principle, i.e. low speed ore pulp by large-diameter pipeline, flow velocity is carried
Height, according to Bernoulli equation, when flow rate of pulp is improved, the pressure reduction of ore pulp, so that being arranged on the air at trunnion
Entrance 9 can be from ambient inlet air, and the air of suction produces micro-bubble and and ore pulp under ore pulp high-speed jet shear action
Mixing, adds the touch opportunity of valuable mineral and air, improves flotation speed.
Set the feed end diameter D of mineral-feeding pipe 81（m）, pressure P1（Pa）, speed v1（m/s）, throat pipe diameter D2（m）, pressure P2
（kPa）, speed v2（m/s）, pulp density ρ1（kg/m3）；According to Bernoulli equation, each parameter meets following two formula：
P1+ρ1v2 1 /2=P2+ρ1v2 2 /2（Formula 1）；
D2 1v1 =D2 2v2 （Formula 2）；
Work as P2During ＜ 0, the air-breathing of mineral-feeding pipe 8, general D2=（1/4~1/2）D1It is advisable；v2 Generally higher than 10m/s.
To make air smoothly enter in mineral-feeding pipe 8, sectional area expands as 2-3 times of trunnion after ore pulp is by trunnion, and
The external air inlet pipe at air intake 9, air inlet pipe valve regulated air inflow.
During specific works, the outlet pressure 0.03-0.1MPa of mineral-feeding pipe 8, ore pulp is with 4-8m/s speed along tangent line side
To into cone 2b, and when can also install valve on mineral-feeding pipe 8 to prevent equipment downtime, ore pulp flows backwards.
After ore pulp enters to cone 2b with 4-8m/s speed, ore pulp is circled along cone wall, and this is equivalent to machine
The impeller periphery speed of tool agitation type flotation machine, thus bottom land is not susceptible to deep gouge and showed when handling big proportion or coarse grain ore
As.
With the continuous injection of ore pulp in flotation column body 2, the stabilier 11 configured in cylinder 2a limits ore pulp and existed
Make high speed circular motion in cylinder 2a, it is therefore prevented that the merger of bubble and top " magic flower ", so that bubble edge in cylinder 2a
Horizontal direction is uniformly distributed, and forms substantial amounts of microvesicle, and then increases the probability that ore particle is contacted with microvesicle, improves gangue ore deposit
The efficiency of the separation of thing.
Because the ore pulp in cone 2b makees centrifugal motion, it is less than its periphery in the hydraulic pressure of cone 2b axial centerlines
Ore pulp on the upside of hydraulic pressure, thus cylinder 2a is back to cone 2b in the presence of gravity and pressure differential along middling cycle pipe 10,
It is achieved thereby that the self-loopa of chats.
Foam overflow in cylinder 2a tops is rinsed into foam tank 3, and by the water of concentrate wash tub pipe 4,
The collection to concentrate is realized at concentrate outlet 6.
Claims (5)
1. a kind of Self inhaling type Cyclonic-static fine-bubble flotation column, including frame and the flotation column body being fixed in frame, flotation
Post body is made up of upside cylinder and downside cone；Cylinder top is configured with foam tank, concentrate wash tub pipe and selected flushing water
Pipe, the bottom land of foam tank is exported provided with concentrate；The side wall of cylinder lower end is exported provided with mine tailing；The bottom of cone is provided with ore discharge
Mouthful；It is characterized in that：On the side wall of cone, be circumferentially disposed with some in horizontal arrangement and with the conical surface of cone it is tangent to
Pipe, mineral-feeding pipe has venturi tube structure, and provided with air intake at its trunnion；It is provided with flotation column body along wherein
The middling cycle pipe of heart axis arrangement；Downside in cylinder, some pieces of stabiliers are evenly arranged along its center axis, and every piece steady
Plate is flowed in vertical arrangement.
2. a kind of Self inhaling type Cyclonic-static fine-bubble flotation column according to claim 1, it is characterized in that：On the inside of cylinder
Wall provided with the open tailing tank in top, and the opening end of tailing tank institute just to column side wall in ramp structure；In mine tailing
The bottom of case arranges the mine tailing outlet；The open end position of tailing tank is higher than the upper end of the stabilier.
3. a kind of Self inhaling type Cyclonic-static fine-bubble flotation column according to claim 1, it is characterized in that：The cylinder
Height is less than 2 with diameter ratio；The upper end of the middling cycle pipe is arranged in cylinder, ore discharge of the lower end close to cone base
Mouthful.
4. a kind of Self inhaling type Cyclonic-static fine-bubble flotation column according to claim 1, it is characterized in that：The mineral-feeding pipe
Provided with four, four mineral-feeding pipes are arranged in same level, in 90 ° of angles between every two adjacent mineral-feeding pipes；It is described steady
Flow plate and be provided with 5~8 pieces.
5. a kind of Self inhaling type Cyclonic-static fine-bubble flotation column according to claim 1, it is characterized in that：The mine tailing goes out
Mine tailing regulating valve is housed on the pipeline that mouth is docked, ore drawing gate is housed on the pipeline that gape is docked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614927.8A CN107225049B (en) | 2017-07-26 | 2017-07-26 | Self-suction type cyclone-static microbubble flotation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614927.8A CN107225049B (en) | 2017-07-26 | 2017-07-26 | Self-suction type cyclone-static microbubble flotation column |
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| Publication Number | Publication Date |
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| CN107225049A true CN107225049A (en) | 2017-10-03 |
| CN107225049B CN107225049B (en) | 2022-10-25 |
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| CN201710614927.8A Active CN107225049B (en) | 2017-07-26 | 2017-07-26 | Self-suction type cyclone-static microbubble flotation column |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108043593A (en) * | 2017-12-25 | 2018-05-18 | 中矿金业股份有限公司 | A kind of anti-settling slot device of U-type groove flotation device |
| CN114642978A (en) * | 2022-03-22 | 2022-06-21 | 浙江一龙环保科技有限公司 | Suction type rotational flow microbubble generator |
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| CN206924894U (en) * | 2017-07-26 | 2018-01-26 | 大冶有色设计研究院有限公司 | A kind of Self inhaling type cyclone-static microbubble floatation column |
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| CN114642978B (en) * | 2022-03-22 | 2023-01-10 | 浙江一龙环保科技有限公司 | Suction type rotational flow microbubble generator |
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| CN107225049B (en) | 2022-10-25 |
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