CN109092545A - A kind of heavy floating combined sorting device and method - Google Patents
A kind of heavy floating combined sorting device and method Download PDFInfo
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- CN109092545A CN109092545A CN201810800681.8A CN201810800681A CN109092545A CN 109092545 A CN109092545 A CN 109092545A CN 201810800681 A CN201810800681 A CN 201810800681A CN 109092545 A CN109092545 A CN 109092545A
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- cone
- cobbing
- cylinder
- mineralising
- cover plate
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a kind of heavy floating combined sorting device and methods, including body, separation tube, mineralising cylinder, settling cone, cobbing cone, feed distributor；Body is hollow vertical type cylinder structure, body internal upper part is equipped with horizontal positioned connecting cover plate, separation tube is connected by connecting cover plate, concentrate outlet is set on the body above connecting cover plate, overflow outlet is set on body below connecting cover plate close to connecting cover plate bottom, separation tube is cylindrical structure；Separation tube is equipped with the mineralising cylinder for the cylindrical structure coaxially placed, underpart connects settling cone, settling cone bottom is connected with mineralising cylinder, it is bored by flanged joint cobbing mineralising cylinder bottom, cobbing cone is coaxially provided with feed distributor, settling cone bottom sides are equipped with chats outlet, and cobbing bores lower side and is equipped with tailing outlet port, and feed dispenser bottom is feeding inlet.The present invention improves the flotation upper limit, increases sorting particle size range；And then improve the rate of recovery of coarse granule flotation.
Description
Technical field
The present invention relates to a kind of heavy floating combined sorting device and methods, belong to separation of coarse slime technical field, are also applied for
The reverse flotations such as iron ore.
Background technique
With the continuous improvement of coal mining mechanization degree and the continuous intensification of mining depth, lead to Bed for Fine Coal content not
Disconnected to improve, coarse slime of the granularity between gravity treatment and flotation effectively sorts more and more important.Traditional gravity treatment lower limit is 1mm, is passed
The system flotation upper limit is 0.5mm, and the coal of grade is difficult to sort by traditional sorting technology between the flotation upper limit and gravity treatment lower limit,
And in major part coal preparation plant of China, content of the coarse slime in coal separation circuit but remains high, this part coarse slime is sorting
In the process if cannot effectively handle, the waste of resource will cause, influence the economic benefit of coal preparation plant.It is conventional, single
Coal preparation technology means are generally difficult to obtain ideal technical-economic index, and crucial sorting technology and screening installation still lag behind state
Outer level, the research and development and improvement of new and effective cleaning unit are still the most important thing of coal preparation technique development.
Flotation column is shown powerful because of its sorting advantage highly selective to superfine material in flotation technology field
Vitality, many countries have conducted extensive research work.In this context, a collection of flotation column new technology, new equipment, new process
It comes into being.However these new techniques and equipment is primarily directed to the sorting of thin coal particles, and gravity treatment and flotation granularity are handed over
Coarse slime near boundary still cannot be sorted effectively in current flotation column.It therefore, is very to the further improvement of flotation column
It is necessary to.
All attempt to improve the coarse grained rate of recovery in flotation there are many invention before.It is public in United States Patent (USP) US 4960509
Having opened one vertical baffle of addition in mechanical flotation machine makes flotation device be divided into feed zone and flotation area, thus to improve performance.
But since this equipment depends on the suspension effect of impeller that entire flotation device is made to generate high energy consumption rate and height turbulent flow, to lead
Coarse granule and foam fraction factor are caused, coarse grained recycling is unfavorable for.
Summary of the invention
The present invention is intended to provide a kind of heavy floating combined sorting device and method, devises a kind of collection and float the synergy field of force again
In NEW TYPE OF COMPOSITE screening installation --- the upper up-flow flotation column of one, solves the coarse slime near gravity treatment and flotation granularity boundary
The problem of still cannot effectively being sorted in current flotation column.
The present invention provides a kind of heavy floating combined sorting devices, including body, separation tube, mineralising cylinder, settling cone, coarse grain point
Choosing cone, feed distributor；Body is hollow vertical type cylinder structure, be successively arranged in body from top to bottom connecting cover plate, separation tube,
Mineralising cylinder, settling cone, cobbing cone, feed distributor, connecting cover plate, separation tube, mineralising cylinder, settling cone, cobbing cone,
The axis of feed distributor and body is on one wire；
Body internal upper part is equipped with horizontal positioned connecting cover plate, separation tube is connected by connecting cover plate, above connecting cover plate
Concentrate outlet is set on body, sets overflow outlet on body of the lower section of connecting cover plate close to connecting cover plate bottom, is sorted
Cylinder is cylindrical structure；The mineralising cylinder for the cylindrical structure coaxially placed is equipped with below separation tube, separation tube need to only compare mine
The internal diameter for changing cylinder is big, without particular/special requirement in ratio, need to determine its inner diameter size according to the dispersion of different minerals；Under body
Portion connects settling cone, settling cone and body by flanged joint, and settling cone bottom is connected with mineralising cylinder, and mineralising cylinder bottom passes through method
Orchid connection cobbing cone, cobbing cone are coaxially provided with feed distributor, and feed distributor is connected with cobbing cone bottom；
Settling cone bottom sides are equipped with chats outlet, and chats outlet is located at outside in the middle part of separation tube；Cobbing bores lower part
Side is equipped with tailing outlet port, communicates at the top of tailing outlet port and feed distributor；Feed dispenser bottom is feeding inlet.
The separation tube and connecting cover plate are fixed by welding manner.
The chats outlet of the settling cone side is to be arranged obliquely, and outlet end is equipped with adjustment valve, with adjustment
Chats discharge rate.
The feed distributor be it is tubaeform, feed distributor and cobbing are bored bottom and are fixed by welding manner.
The mineralising cylinder is fixed with settling cone bottom by welding manner.
The body, connecting cover plate, separation tube, mineralising cylinder, settling cone, cobbing cone, feed distributor are coaxial
Configuration.
The present invention provides the methods sorted using above-mentioned heavy floating combined sorting device, comprising the following steps:
(1) duff grain and water are mixed into uniform ore pulp and feed through jet stream inflation mineralising from the feeding inlet of bottom of device, are being fed
Cobbing area is formed between area edge and mineralising cylinder, due to the differential settling velocity of particle in ore pulp in cobbing area,
It completes to press density stratification under the action of upper up-flow, coarse grain spoil is discharged via feed splitter edge from tailing outlet port, just
Step realizes the separation of coal and coarse grain spoil；
(2) enter after separation tube via the particle stream after primary sorting since cross section becomes larger, speed slows down, not being mineralized
Grain via mineralising cylinder radial diffusion, is settled with caducous particle into decanting zone, and the middle density granule to settle down is from chats
Outlet discharge, thin mud and most water are discharged from overflow outlet；
If the material of chats discharge gate discharge still needs to select again, middling cycle is added herein；Chats is set to be pumped into jet stream
In device, make to be transported in mineralising cylinder along downspout after chats mineralising to continue to sort by aerator in ejector；
(3) particle being mineralized continues to rise with bubble, is spread again by separation tube after being overflowed by mineralising cylinder, and flow section increases,
The rate of climb reduces, and concentrate is carried along into froth zone by bubble, froth pulp is formed, finally from body middle and upper part concentrate outlet
Discharge.
Beneficial effects of the present invention:
The present invention devises a kind of novel flotation column supplemented by gravity treatment, based on flotation under ascending current effect, and realization mentions
The high flotation upper limit, the purpose for increasing sorting particle size range；The present invention can stop the sedimentation of particle using upper up-flow, increase thick
Residence time of the grain in flotation column, and then improve the rate of recovery of coarse granule flotation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the present invention floats combined sorting device again.
Fig. 2 is the structural schematic diagram that the present invention floats that combined sorting device adds middling cycle device again.
In figure: 1- body, 2- connecting cover plate, 3- concentrate outlet, 4- separation tube, 5- overflow outlet, 6- settling cone, 7-
Chats outlet, 8- mineralising cylinder, 9- cobbing cone, 10- feeding inlet, 11- tailing outlet port, 12- are fed distributor, and 13- is pumped,
14- ejector, 15- downspout.A is gas source, and I is feed zone, and II is cobbing area, and III is decanting zone, and IV is froth zone.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following embodiment.
Embodiment 1:
As shown in Figure 1, a kind of heavy floating combined sorting device, including body 1, separation tube 4, mineralising cylinder 8, settling cone 6, cobbing
Cone 9, feed distributor 12；Body 1 is hollow vertical type cylinder structure, is successively arranged connecting cover plate 2 in body 1 from top to bottom, divides
Select cylinder 4, mineralising cylinder 8, settling cone 6, cobbing cone 9, feed distributor 12, connecting cover plate 2, separation tube 4, mineralising cylinder 8, sedimentation
Bore the axis of 6, cobbing cone 9, feed distributor 12 and body 1 on one wire；
1 internal upper part of body is equipped with horizontal positioned connecting cover plate 2, separation tube 4 is connected by connecting cover plate 2, in connecting cover plate 2
Concentrate outlet 3 is set on the body 1 of side, overflow row is set on body 1 of the lower section of connecting cover plate 2 close to 2 bottom of connecting cover plate
Outlet 5, separation tube 4 are cylindrical structure；The mineralising cylinder 8 for the cylindrical structure coaxially placed is equipped with below separation tube 4, point
It selects cylinder 4 only need to be bigger than the internal diameter of mineralising cylinder 8, without particular/special requirement in ratio, and it is determined according to the dispersion of different minerals
Inner diameter size；1 lower part of body connects settling cone 6, settling cone 6 and body 1 and passes through flanged joint, 6 bottom of settling cone and mineralising cylinder 8
It is connected, 8 bottom of mineralising cylinder is coaxially provided with feed distributor 12, feed by flanged joint cobbing cone 9, cobbing cone 9
Distributor 12 bores 9 bottoms with cobbing and is connected；
6 bottom sides of settling cone are equipped with chats outlet 7, and chats outlet 7 is located at 8 middle part outside of mineralising cylinder；Cobbing cone 9
Lower side is equipped with tailing outlet port 11, and tailing outlet port 11 is communicated with the top of feed distributor 12；It is fed 12 bottom of distributor
Portion is feeding inlet 10.
The separation tube 4 is fixed with connecting cover plate 2 by welding manner.
The chats outlet 7 of 6 side of settling cone is to be arranged obliquely, and 7 end of chats outlet is equipped with adjustment valve,
To adjust chats discharge rate.
The feed distributor 12 be it is tubaeform, it is solid by welding manner that feed distributor 12 and cobbing bore 9 bottoms
It is fixed.
The mineralising cylinder 8 is fixed with 6 bottom of settling cone by welding manner.
The body 1, separation tube 4, mineralising cylinder 8, settling cone 6, cobbing cone 9, feed distributor 12 are coaxially to match
It sets.
The working principle of upper up-flow flotation column of the present invention is as follows: duff grain and water are mixed into uniform ore pulp and inflate through jet stream
Mineralising is fed from bottom feeding inlet 10, and cobbing area is formed between feed area edge and mineralising cylinder 8.In cobbing area
Due to the differential settling velocity of the particle in ore pulp, complete to press density stratification under the action of upper up-flow, coarse grain spoil is via giving
Expect that 12 edge of distributor is discharged from tailing outlet port 11, the preliminary separation for realizing coal and coarse grain spoil.After primary sorting
Particle stream enters after separation tube 4 since cross section becomes larger, and speed slows down, and the particle not being mineralized and caducous particle are via mine
Change 8 radial diffusion of cylinder, settled into decanting zone, the middle density granule that settles down is discharged from chats outlet 7, thin mud and exhausted big portion
Water is divided (if the material that chats outlet 7 is discharged still needs to select again, to add middling cycle herein (as schemed from the discharge of overflow outlet 5
Shown in 2).It is sent to chats 13 in ejector 14 by pump, is made by aerator (being not drawn into figure) in ejector 14
It is transported in mineralising cylinder 8 after mine mineralising along downspout 15 and continues to sort).The particle being mineralized continues to rise with bubble, via mine
Change after cylinder 8 overflows and spread again by separation tube 4, flow section increases, and the rate of climb reduces, and concentrate is carried along into foam by bubble
Area forms froth pulp, is finally discharged from 1 middle and upper part concentrate outlet 3 of body.
Claims (7)
1. a kind of heavy floating combined sorting device, including body, separation tube, mineralising cylinder, settling cone, cobbing cone, feed distribution
Device；It is characterized by: the body is hollow vertical type cylinder structure, connecting cover plate, sorting are successively arranged in body from top to bottom
Cylinder, mineralising cylinder, settling cone, coarse grain recession cone, feed distributor, connecting cover plate, separation tube, mineralising cylinder, settling cone, coarse grain recycling
The axis of cone, feed distributor and body is on one wire；
Body internal upper part is equipped with horizontal positioned connecting cover plate, separation tube is connected by connecting cover plate, above connecting cover plate
Concentrate outlet is set on body, sets overflow outlet, separation tube on the body below connecting cover plate close to connecting cover plate bottom
For cylindrical structure；Separation tube is equipped with the mineralising cylinder for the cylindrical structure coaxially placed；Underpart connects settling cone, sinks
With body by flanged joint, settling cone bottom is connected drop cone with mineralising cylinder, and mineralising cylinder bottom passes through flanged joint cobbing
Cone, cobbing cone are coaxially provided with feed distributor, and feed distributor is connected with cobbing cone bottom；
Settling cone bottom sides are equipped with chats outlet, and chats outlet is located at outside in the middle part of mineralising cylinder；Cobbing bores lower part
Side is equipped with tailing outlet port, communicates at the top of tailing outlet port and feed distributor；Feed dispenser bottom is feeding inlet.
2. heavy floating combined sorting device according to claim 1, it is characterised in that: the separation tube passes through with connecting cover plate
Welding manner is fixed.
3. heavy floating combined sorting device according to claim 1, it is characterised in that: the chats of the settling cone side is discharged
Mouth is is arranged obliquely, and outlet end is equipped with adjustment valve, to adjust chats discharge rate.
4. heavy floating combined sorting device according to claim 1, it is characterised in that: the feed distributor be it is tubaeform,
Feed distributor is fixed with cobbing cone bottom by welding manner.
5. heavy floating combined sorting device according to claim 1, it is characterised in that: the mineralising cylinder and settling cone bottom are logical
Welding manner is crossed to fix.
6. heavy floating combined sorting device according to claim 1, it is characterised in that: the body, separation tube, mineralising cylinder,
Settling cone, cobbing cone, feed distributor are arranged coaxial.
7. a kind of heavy floating combined sorting method, using the described in any item heavy floating combined sorting devices of claim 1 ~ 6, feature
It is: the following steps are included:
(1) duff grain and water are mixed into uniform ore pulp and feed through jet stream inflation mineralising from the feeding inlet of bottom of device, are being fed
Cobbing area is formed between area edge and mineralising cylinder, in cobbing area due to the differential settling velocity of particle in ore pulp,
It completes to press density stratification under the action of upper up-flow, coarse grain spoil is discharged via feed splitter edge from tailing outlet port, tentatively
Realize the separation of coal and coarse grain spoil；
(2) enter after separation tube via the particle stream after primary sorting since cross section becomes larger, speed slows down, not being mineralized
Grain, via mineralising cylinder radial diffusion, settles, the middle density granule to settle down is by settling with caducous particle into decanting zone
The chats outlet discharge of lower part avris is bored, thin mud and most water are discharged from overflow outlet；
If the material of chats discharge gate discharge still needs to select again, middling cycle is added herein；Chats is set to be pumped into jet stream
In device, make to be transported in mineralising cylinder along downspout after chats mineralising to continue to sort by aerator in ejector；
(3) particle being mineralized continues to rise with bubble, is spread again by separation tube after overflowing via mineralising cylinder, and flow section increases
Greatly, the rate of climb reduces, and concentrate is carried along into froth zone by bubble, forms froth pulp, finally arranges from body middle and upper part concentrate
Outlet discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800681.8A CN109092545B (en) | 2018-07-20 | 2018-07-20 | Gravity-flotation combined sorting device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800681.8A CN109092545B (en) | 2018-07-20 | 2018-07-20 | Gravity-flotation combined sorting device and method |
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| CN109092545A true CN109092545A (en) | 2018-12-28 |
| CN109092545B CN109092545B (en) | 2020-10-27 |
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