CN104815763B - A kind of separation of coarse slime equipment strengthened based on centrifugal force field - Google Patents
A kind of separation of coarse slime equipment strengthened based on centrifugal force field Download PDFInfo
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- CN104815763B CN104815763B CN201510203143.7A CN201510203143A CN104815763B CN 104815763 B CN104815763 B CN 104815763B CN 201510203143 A CN201510203143 A CN 201510203143A CN 104815763 B CN104815763 B CN 104815763B
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Abstract
The invention discloses a kind of separation of coarse slime equipment strengthened based on centrifugal force field, it is hollow rotary drum including feeding pipe and inside, rotary drum is arranged in casing, rotary drum can be rotated in casing, feeding pipe is out of, casing upper end oral area insertion rotary drum, slurry distribution plate is provided with below the mouth of pipe, slurry distribution plate is arranged in rotary drum, slurry distribution disc spins are driven during drum rotating, splicing funnel is provided with inside rotary drum lower end, the upper end open of splicing funnel is annular cutting knife, splicing funnel bottom hopper outlet connects cleaned coal drainage conduit, cleaned coal drainage conduit is stretched out by bottom of the drum, region between cleaned coal drainage conduit and rotary drum is drum bottom material discharge region, drum bottom material discharge region connection tail coal drainage conduit one end open, another end opening of tail coal drainage conduit is stretched out by chassis sidewall.The beneficial effects of the invention are as follows the separation for realizing concentrate and mine tailing, the efficiency of separation is high.
Description
Technical field
The invention belongs to slime separation technical field, it is related to a kind of separation of coarse slime equipment strengthened based on centrifugal force field.
Background technology
In recent years, with the raising of mining mechanization degree so that the content more and more higher of the fine fraction coal in raw coal, and
The conventional gravity treatment of China and floatation equipment are difficult coarse slime is obtained satisfied separating effect, because gravity treatment is with the reduction of granularity
The deterioration in accuracy of sorting, and flotation operation easily causes the loss of low ash extract coal with the increase of granularity.But coarse slime without
Though crossing sorting or process sorting but its effect being poor, the waste of resource is caused.Therefore effective sorting of coarse slime is obtained in recent years
The common concern of China's coal separation industry is arrived.
Current China separation of coarse slime equipment mainly have spiral, Slime dense medium cyclone, interference bed point
Select machine etc..The screening installation of several coarse slimes is operated in gravitational field above, but the size of gravitational field is limited, this
The separation of coarse slime is limited to a certain extent.Spiral is to make material stream along during helical path
Make weight product transversely evenly distributed from outer rim to Inner edge, by the interceptor of exhaust end be transversely divided into essence, in, cash three
Individual product.It does not have moving component, and floor space is small, simple to operate.But its effective separating density it is general 1.6kg/L with
On, separating effect can be affected during less than the value, in coal market a piece of gloomy today, ash content of the user to coal product
It is required that more and more higher, this requires that slime separation density is more and more lower, therefore its application has significant limitation.Fine coal properties revolve
Stream device requirement diameter when handling coarse slime is smaller, medium solid is thinner, this not only adds expense prepared by medium, and sorts
Density is not easily controlled.Liquid-solid fluid bed separation machine material size scope is narrower, and head coal product generally requires desliming and can be only achieved
Qualified ash content, the especially pollution when high ash thin mud content is higher in pan feeding to cleaned coal are just more serious.Therefore, coarse slime
It is still a urgent problem to be solved that efficient separation, which is utilized,.
The content of the invention
It is an object of the invention to provide a kind of separation of coarse slime equipment strengthened based on centrifugal force field, coal slime point is solved
Choosing is difficult, the problem of efficiency of separation is low.
The technical solution adopted in the present invention be include feeding pipe and it is internal be hollow rotary drum, rotary drum is arranged on casing
Interior, rotary drum can be rotated in casing, and feeding pipe is out of, casing upper end oral area insertion rotary drum, below the mouth of pipe provided with slurry distribution
Disk, slurry distribution plate is arranged in rotary drum, is driven during drum rotating inside slurry distribution disc spins, rotary drum lower end provided with splicing leakage
Bucket, the upper end open of splicing funnel is annular cutting knife, splicing funnel bottom hopper outlet connection cleaned coal drainage conduit, cleaned coal drainage conduit
Stretched out by bottom of the drum, the region between cleaned coal drainage conduit and rotary drum is drum bottom material discharge region, drum bottom material discharge region connection tail coal discharge
Pipe one end open, another end opening of tail coal drainage conduit is stretched out by chassis sidewall.
Further, the slurry distribution plate is fixed on rotary drum by cross frame.
Further, the slurry distribution plate is that cone, cone are located at feeding pipe lower ending opening center, slurry distribution plate upwards
Surface is uniformly provided with six guiding gutters centered on cone to slurry tray edges.
Further, the rotary drum is that hollow cylindrical or top Lve Kuan bottoms are slightly narrow round table-like.
Further, the distance between the annular cutter edge diameter and drum inner wall can be adjusted.
The beneficial effects of the invention are as follows the separation for realizing concentrate and mine tailing, the efficiency of separation is high.
Brief description of the drawings
Fig. 1 is separation of coarse slime device structure schematic diagram of the present invention；
Fig. 2 is slurry distribution plate lateral plan；
Fig. 3 is slurry distribution plate top view.
In figure, 1. feeding pipes, 2. rotary drums, 3. slurry distribution plates, 4. splicing funnels, 5. drum bottom material discharge regions, 6. tail coal discharges
Pipe, 7. cleaned coal drainage conduits, 8. casings, 301. cross frames, 302. cones, 303. guiding gutters, 401. annular cutting knifes.
Embodiment
With reference to embodiment, the present invention is described in detail.
Apparatus of the present invention are as shown in figure 1, be hollow rotary drum 2 including feeding pipe 1 and inside, rotary drum 2 is arranged on casing 8
Interior, rotary drum 2 can be rotated in casing 8, and feeding pipe 1 is out of, casing 8 upper end oral area insertion rotary drum 2, mouth of pipe lower section is provided with slurry
Distribution plate 3, slurry distribution plate 3 is arranged in rotary drum 2, drives slurry distribution plate 3 to rotate when rotary drum 2 rotates, inside the lower end of rotary drum 2
Provided with splicing funnel 4, the upper end open of splicing funnel 4 is annular cutting knife 401, the bottom hopper outlet connection cleaned coal of splicing funnel 4
Drainage conduit 7, cleaned coal drainage conduit 7 is stretched out by the bottom of rotary drum 2, and the region between cleaned coal drainage conduit 7 and rotary drum 2 is drum bottom material discharge region 5,
The one end open of drum bottom material discharge region 5 connection tail coal drainage conduit 6, another end opening of tail coal drainage conduit 6 is stretched out by the side wall of casing 8.Such as Fig. 2
With shown in Fig. 3, slurry distribution plate 3 is fixed on rotary drum 2 by cross frame 301.Slurry distribution plate 3 is cone, cone 302 is upward
Positioned at the lower ending opening center of feeding pipe 1, the surface of slurry distribution plate 3 is uniformly set centered on cone 302 to the edge of slurry distribution plate 3
There are six guiding gutters 303.Rotary drum 2 is that hollow cylindrical or top Lve Kuan bottoms are slightly narrow round table-like.The annular edge of a knife of cutting knife 401
The distance between diameter and the inwall of rotary drum 2 can be adjusted.
Apparatus of the present invention start motor when working, rotary drum 2 is rotated about axis according to certain rotating speed and provides suitable strong
The centrifugal force field of degree, the size of the rotating speed is determined according to the granularity of pan feeding ore pulp.Ore pulp is fed by feeding pipe 1, in Action of Gravity Field
Under fall on slurry distribution plate 3, the top of slurry distribution plate 3 be a cone-shaped apparatus, be integrated with distribution plate, material pass through the dress
The guiding gutter 303 on slurry distribution plate 3 is uniformly flowed to after putting.Slurry distribution plate 3 is shaped as circle, by cross frame 301
It is fixed in rotary drum 2, as rotary drum 2 is rotated and rotates, the adjacent interval of guiding gutter 303 of each two is 60 °, and ore pulp is via water conservancy diversion
Groove 303 is got rid of to the inwall of rotary drum 2.Rotary drum 2 can be slightly narrow round table-like for hollow cylindrical either top Lve Kuan bottoms, and effect is logical
The centrifugal force field crossed required for the rotation offer sorting of certain speed, so that ore pulp completes layering by density size.When 2 turns of rotary drum
When dynamic, the ore pulp on slurry distribution plate 3 is uniformly assigned to each guiding gutter 303 and along guiding gutter 303 with certain initial velocity
Degree is uniformly assigned to the surrounding of the inwall of rotary drum 2 and rotated with rotary drum 2.Under centrifugal force field and gravity force field, radially
Solid particle in upper ore pulp settles layering in the presence of centrifugal force field by density size, and the big material of density is deposited to rotary drum
2 inwall and the small material of density are in nexine；Ore pulp is moved downward under gravity on axial direction.The topmost side of splicing funnel 4
Edge is the cutter of sedimentation bed, i.e., annular cutting knife 401 serves and cuts distance material bed and that it is with the inwall of rotary drum 2
It is adjustable.The cutting material bed to different densities is realized, so as to realize the separation of concentrate and mine tailing.During material bed process device,
Material in annular cutting knife 401 and the inwall of rotary drum 2 enters the bottom tail coal drainage conduit of rotary drum 2 under gravity turns into tail coal,
Part within the annular oral area of cutting knife 401 turns into cleaned coal and discharged from the pipeline of cleaned coal drainage conduit 7, so far completes entirely to sort
Journey.
The upper section of slurry distribution plate 3 is a cone, and the cone of the cone faces the geometric center of feeding pipe 2
Point, to ensure that supplied materials is here divided evenly over each guiding gutter 303.The surface of slurry distribution plate 3 is centered on cone to slurry point
Six guiding gutters 303 are uniformly provided with the edge of disk 3.Space segment feed slurry flowing between adjacent guide groove 303, guiding gutter
303 effect is to make slurry to obtain a suitable initial velocity before contact drum inner wall, and this is to follow-up heavy by density
It is favourable to drop operation.The rotary drum that the equipment is used is slightly narrow round table-like for hollow cylindrical either top Lve Kuan bottoms.Material
The supplied materials of slurry distribution plate 3 continues to accelerate to move in a circle in the horizontal direction in the presence of rotary drum, and the particle in ore pulp is simultaneously
Start to settle layering by density size under effect of centrifugal force, be that the separation of the concentrate and tailings of next step is ready.Lean on
The funnel of side-lower is splicing funnel in nearly rotary drum, and its composition has three parts from top to bottom：Round table-like cutter wide at the top and narrow at the bottom,
Circular cylinder shaped portion, drainage conduit.The distance of annular cutter and drum inner wall just determines the separating density of slurry, the distance it is big
Small is also to adjust, and is adapted to the job requirements of different separating densities.Other annular cutter it is wide at the top and narrow at the bottom only
Ad hoc meter can effectively solve blockage problem of the mine tailing between annular cutter and drum inner wall when separating density is higher, greatly
Improve operating efficiency greatly.
It is also an advantage of the present invention that：Matched assorting room is designed according to particles size distribution properties, by turning
The centrifugal sedimentation of drum section 2, the annular cutting of the cutting knife 2 sedimentation two-part design of bed, especially annular cutting knife 2 and the inwall of rotary drum 2
Distance can be adjusted, and enhance adaptability of the equipment to coal slime, be disclosure satisfy that ash requirements of the different user to head coal product, carried
The high quality and quantity of head coal product.The centrifugal acceleration of high intensity can make up subparticle due to granularity it is small caused by
The shortcoming of sedimentation time length, so as to realize rapid subsidence.Each compact conformation of equipment, rationally, floor space is small, install and operation side
Just.Employ the centrifugal force field of reinforcement according to the less feature of the granularity of sorted material, and the centrifugal force field of high intensity can be with
Make up subparticle due to granularity it is small caused by sedimentation time length shortcoming, so as to realize rapid subsidence.
Described above is only the better embodiment to the present invention, not makees any formal limit to the present invention
System, any simple modification that every technical spirit according to the present invention is made to embodiment of above, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (4)
1. a kind of separation of coarse slime equipment strengthened based on centrifugal force field, it is characterised in that：It is sky including feeding pipe (1) and inside
The rotary drum (2) of the heart, rotary drum (2) is arranged in casing (8), and rotary drum (2) can be rotated in the casing (8), and feeding pipe (1) is from casing
(8) in upper end oral area insertion rotary drum (2), slurry distribution plate (3) is provided with below the mouth of pipe, slurry distribution plate (3) is arranged on rotary drum
(2) driven in, when rotary drum (2) rotates and be provided with splicing funnel (4), splicing inside slurry distribution plate (3) rotation, rotary drum (2) lower end
The upper end open of funnel (4) is annular cutting knife (401), splicing funnel (4) bottom hopper outlet connection cleaned coal drainage conduit (7), essence
Coal drainage conduit (7) is stretched out by rotary drum (2) bottom, and the region between cleaned coal drainage conduit (7) and rotary drum (2) is drum bottom material discharge region (5),
Drum bottom material discharge region (5) connection tail coal drainage conduit (6) one end open, tail coal drainage conduit (6) another end opening is stretched by casing (8) side wall
Go out；The distance between annular cutting knife (401) edge of a knife diameter and rotary drum (2) inwall can be adjusted.
2. according to a kind of separation of coarse slime equipment strengthened based on centrifugal force field described in claim 1, it is characterised in that：The material
Slurry distribution plate (3) is fixed on rotary drum (2) by cross frame (301).
3. according to a kind of separation of coarse slime equipment strengthened based on centrifugal force field described in claim 1, it is characterised in that：The material
Starch distribution plate (3) be cone, cone (302) upwards be located at feeding pipe (1) lower ending opening center, slurry distribution plate (3) surface with
Centered on cone (302) six guiding gutters (303) are uniformly provided with to slurry distribution plate (3) edge.
4. according to a kind of separation of coarse slime equipment strengthened based on centrifugal force field described in claim 1, it is characterised in that：Described turn
Drum (2) is that hollow cylindrical or top Lve Kuan bottoms are slightly narrow round table-like.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510203143.7A CN104815763B (en) | 2015-04-26 | 2015-04-26 | A kind of separation of coarse slime equipment strengthened based on centrifugal force field |
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| CN201510203143.7A CN104815763B (en) | 2015-04-26 | 2015-04-26 | A kind of separation of coarse slime equipment strengthened based on centrifugal force field |
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| CN104815763A CN104815763A (en) | 2015-08-05 |
| CN104815763B true CN104815763B (en) | 2017-09-05 |
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| WO2020194169A1 (en) | 2019-03-22 | 2020-10-01 | Flsmidth A/S | Centrifugal separator and screen having blades for same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191412774A (en) * | 1914-05-25 | 1915-05-25 | James Henry Hoseason | Improvements in and relating to Centrifugal Separating Machines. |
| DE3044797A1 (en) * | 1980-11-28 | 1982-07-01 | Fluormatic GmbH, 7407 Rottenburg | Removing solids from liq. using two centrifuges - superimposed in common casing and operated independently |
| CN2514920Y (en) * | 2001-12-26 | 2002-10-09 | 山东煤矿泰安机械厂 | Centrifuge for separating duff |
| CN201399387Y (en) * | 2009-05-19 | 2010-02-10 | 煤炭科学研究总院唐山研究院 | Feeding distribution plate of vertical coal slime centrifuge |
| CN201841058U (en) * | 2010-04-30 | 2011-05-25 | 株洲舜臣选煤机械有限责任公司 | High-pressure air blowing device for preventing coal slime from blocking screen cut of coal slime centrifugal machine |
| CN202700665U (en) * | 2012-08-20 | 2013-01-30 | 衡水天鹰科技有限公司 | Vertical coal slime centrifugal machine |
| CN203196767U (en) * | 2012-12-25 | 2013-09-18 | 重庆江北机械有限责任公司 | Vertical centrifuge discharging mechanism |
| CN203990957U (en) * | 2014-07-07 | 2014-12-10 | 合肥约翰芬雷矿山装备有限公司 | A kind of vertical coal selects centrifugal sieve sub-agencies |
-
2015
- 2015-04-26 CN CN201510203143.7A patent/CN104815763B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191412774A (en) * | 1914-05-25 | 1915-05-25 | James Henry Hoseason | Improvements in and relating to Centrifugal Separating Machines. |
| DE3044797A1 (en) * | 1980-11-28 | 1982-07-01 | Fluormatic GmbH, 7407 Rottenburg | Removing solids from liq. using two centrifuges - superimposed in common casing and operated independently |
| CN2514920Y (en) * | 2001-12-26 | 2002-10-09 | 山东煤矿泰安机械厂 | Centrifuge for separating duff |
| CN201399387Y (en) * | 2009-05-19 | 2010-02-10 | 煤炭科学研究总院唐山研究院 | Feeding distribution plate of vertical coal slime centrifuge |
| CN201841058U (en) * | 2010-04-30 | 2011-05-25 | 株洲舜臣选煤机械有限责任公司 | High-pressure air blowing device for preventing coal slime from blocking screen cut of coal slime centrifugal machine |
| CN202700665U (en) * | 2012-08-20 | 2013-01-30 | 衡水天鹰科技有限公司 | Vertical coal slime centrifugal machine |
| CN203196767U (en) * | 2012-12-25 | 2013-09-18 | 重庆江北机械有限责任公司 | Vertical centrifuge discharging mechanism |
| CN203990957U (en) * | 2014-07-07 | 2014-12-10 | 合肥约翰芬雷矿山装备有限公司 | A kind of vertical coal selects centrifugal sieve sub-agencies |
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| CN104815763A (en) | 2015-08-05 |
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