CN109046748A - Slime separation device, separation system and method for separating - Google Patents
Slime separation device, separation system and method for separating Download PDFInfo
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- CN109046748A CN109046748A CN201810923772.0A CN201810923772A CN109046748A CN 109046748 A CN109046748 A CN 109046748A CN 201810923772 A CN201810923772 A CN 201810923772A CN 109046748 A CN109046748 A CN 109046748A
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- fluid bed
- pan feeding
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- 238000000926 separation method Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 23
- 239000003245 coal Substances 0.000 claims abstract description 174
- 239000007787 solid Substances 0.000 claims abstract description 100
- 239000012530 fluid Substances 0.000 claims abstract description 88
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005188 flotation Methods 0.000 claims description 52
- 238000012216 screening Methods 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000004888 barrier function Effects 0.000 claims description 26
- 239000003250 coal slurry Substances 0.000 claims description 18
- 239000012141 concentrate Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 14
- 230000003750 conditioning effect Effects 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 7
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 235000019580 granularity Nutrition 0.000 description 32
- 230000000694 effects Effects 0.000 description 13
- 230000001174 ascending effect Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Cyclones (AREA)
Abstract
Slime separation device according to an embodiment of the present invention includes: classifying cyclone, liquid-solid fluid bed and pan feeding pallet, it is described liquid-solid fluid bed with sorting chamber, the pan feeding pallet is on the liquid-solid fluid bed top and the liquid-solid fluid bed connection, the pan feeding pallet is located in the sorting chamber room, and the pan feeding pallet has the feed chute with the sorting chamber.Slime separation device according to an embodiment of the present invention, classifying cyclone is directly anchored to liquid-solid fluid bed top by pan feeding pallet, so that pan feeding (i.e. coal slime) can directly be flowed out by classifying cyclone, and it is flowed into liquid-solid fluid bed by pan feeding pallet, to avoid classifying cyclone and it is liquid-solid fluid bed between set up conveyance conduit, the space hold of slime separation device is reduced, and saves power consumption and material consumption, reduces the production cost of slime separation operation.
Description
Technical field
The present invention relates to slime separation technical field, in particular to a kind of slime separation device, separation system and
Method for separating.
Background technique
In the related technology, it in order to sort coal slime, needs to be classified (i.e. to coal coal slime by classifying cyclone
Mud carries out the classification in granularity), and then point in density (is carried out to coal slime by liquid-solid fluid bed sorted to coal slime
Choosing), with the coal slime satisfied the use demand.
But the coal slime that completion is classified in classifying cyclone needs to be transported in liquid-solid fluid bed by transport pipeline, no
Only space hold is larger, and coal slime long distance delivery can also improve the power consumption and material consumption of slime separation device, increase coal slime
Processing cost in assorting room.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of coal
The space hold of mud sorting unit, the slime separation device is small, and power consumption and material consumption are low.
Slime separation device according to an embodiment of the present invention includes: classifying cyclone, liquid-solid fluid bed and pan feeding pallet,
It is described it is liquid-solid fluid bed have sorting chamber, the pan feeding pallet the liquid-solid fluid bed top with it is described liquid-solid fluid bed
Connection, the pan feeding pallet are located in the sorting chamber room, and the pan feeding pallet has the pan feeding with the sorting chamber
Slot.
Slime separation device according to an embodiment of the present invention, is directly anchored to liquid by pan feeding pallet for classifying cyclone and consolidates
Above fluidized bed, so that pan feeding (i.e. coal slime) can directly be flowed out by classifying cyclone, and liquid is flowed by pan feeding pallet and is consolidated
In fluidized bed, to avoid classifying cyclone and it is liquid-solid fluid bed between set up conveyance conduit, reduce slime separation device
Space hold, and power consumption and material consumption are saved, reduce the production cost of slime separation profession.
According to some embodiments of the present invention, the classifying cyclone underflow opening of the classifying cyclone protrudes into the feed chute
It is interior.
Further, grafting protrusion is additionally provided in the pan feeding pallet, the classifying cyclone is protruded into the grafting protrusion
Partially to stop the classifying cyclone underflow opening in underflow opening.
In some embodiments, it is described it is liquid-solid fluid bed further include decelerating barrier, the decelerating barrier protrudes into the pan feeding
Be spaced apart in slot and with the bottom wall of the feed chute, the decelerating barrier be radially positioned the classifying cyclone with it is described enter
Between the side wall of material torr disk.
Optionally, described liquid-solid fluid bed including the lamina tecti of lathe bed and the cover on the lathe bed, the decelerating barrier
It is connected to the lamina tecti, the pan feeding pallet is located in the sorting chamber room, the top of the lamina tecti and the pan feeding pallet
Internal discharge gate is limited between wall jointly, is connected between the feed chute and the sorting chamber by internal discharge gate.
Further, the axial direction for extending perpendicularly to the sorting chamber of the internal discharge gate.
In some embodiments, it is described sorting chamber cross section be annular, the side wall of the lathe bed include inner sidewall and
Lateral wall, the pan feeding pallet are connected to the inner sidewall of the sorting unit.
Further, the number of the classifying cyclone is multiple, and the decelerating barrier is annular, multiple classification rotations
It is uniformly distributed in the inside of the decelerating barrier to flow device.
According to some embodiments of the present invention, it is described it is liquid-solid fluid bed include: lathe bed, described point is limited in the lathe bed
Chamber is selected, the open top of the lathe bed forms material overflow port, inner wall and the bed of the pan feeding pallet in the lathe bed
Body connection, the lathe bed include annular inner sidewall, lateral wall and are connected between the inner sidewall and the lateral wall
Multiple conical bottom walls, the multiple conical bottom wall is uniformly distributed along the circumferential direction of the lathe bed, and the bottom of each conical bottom wall has
Underflow outlet.
Further, described liquid-solid fluid bed further include: water supply pipe, the water supply pipe, which has, is located at the sorting chamber
Indoor outlet pipe, the number of the outlet pipe be it is multiple, each outlet pipe along the lathe bed radially extend and it is multiple
The outlet pipe is uniformly distributed along the circumferential direction of the lathe bed, on each outlet pipe there are multiple radial directions along the lathe bed successively to divide
The water jet of cloth, distribution density is gradually increased the water jet on the outlet pipe from inside to outside.
The slime separation system of embodiment includes: coal slime storage device, such as above-described embodiment according to a second aspect of the present invention
Slime separation device, coarse medium slime screening plant, coarse coal slurry screening plant and the cleaned coal flotation unit, the coal slime
Storage device connects for storing coal slime raw material, the discharge port of the coal slime storage device and the feed inlet of the classifying cyclone
It connects, the classifying cyclone has discharger, and the liquid-solid fluid bed bottom has underflow outlet, the coarse medium slime screening
Device includes high frequency shale shaker, concentrator and the first filter press, and the high frequency shale shaker is suitable for sifting out coarse medium slime and will sieve
Liquid is supplied to concentrator afterwards, and the solid outlet of concentrator is connect with the first filter press, and the liquid outlet of concentrator and first
The liquid outlet of filter press connects, and the solid outlet of the first filter press is suitable for discharge tail coal mud, the coarse coal slurry screening plant
Including concentrate cyclone and the linear vibrating screen being connect with the underflow opening of concentrate cyclone, the underflow opening of concentrate cyclone and straight
Linearly coupled sieve connection, linear vibrating screen are suitable for sifting out coarse coal slurry, and the cleaned coal flotation unit includes kaskad apparatus for pre-flotation pulp conditioning, flotation column
And second filter press, the discharger of the overflow port of liquid and concentrate cyclone, classifying cyclone after the linear vibrating screen sieve
It converges and is connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning, the outlet of the kaskad apparatus for pre-flotation pulp conditioning is connect with flotation column, the flotation column
Bottom outlet is connect with the feed inlet of the concentrator, and the feed inlet of the overflow port of the flotation column and second filter press connects
Logical, the solid outlet of second filter press is suitable for discharge floatation clean coal, and the liquid outlet of the filter press is suitable for and ore pulp standard
The feed inlet of standby device is connected to.
The present invention is mentioned that a kind of method for separating that should have above-mentioned slime separation system includes:
Classification and sorting: coal slime raw material is sub-elected into small grain size coal slime and big granularity coal slime, described by cyclonic separation process
Big granularity coal slime fluidizes process sorting admittedly through liquid to obtain big density coal slime and small density coal slime；
Coarse medium slime sorting: big density coal slime is screened through high-frequency vibration, coarse medium slime is obtained on sieve, screenings is taken off
Water, filters pressing finally obtain tail coal mud and recirculated water；
Coarse coal slurry sorting: small density coal slime is concentrated, the solid obtained after concentration is screened, is obtained on sieve
The liquid of generation in coarse coal slurry, screenings and enrichment process is conveyed to flotation；
Cleaned coal flotation: by small grain size coal slime obtained in classification and sorting, coarse coal slurry sorting obtained in screenings with it is dense
The liquid of generation in contracting process is mixed together, flotation, filters pressing, to obtain floatation clean coal, the liquid that filters pressing generates after filters pressing
It is back to mixed processes.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the cross-sectional view of slime separation device according to an embodiment of the present invention；
Fig. 2 is the top view of slime separation device according to an embodiment of the present invention；
Fig. 3 is the classifying cyclone of slime separation device according to an embodiment of the present invention and the schematic diagram of pan feeding pallet；
Fig. 4 is the schematic diagram of the liquid-solid fluid bed water supply pipe of slime separation device according to an embodiment of the present invention；
Fig. 5 is the schematic diagram of the liquid-solid fluid bed lathe bed of slime separation device according to an embodiment of the present invention；
Fig. 6 is the enlarged diagram of a-quadrant in Fig. 5；
Fig. 7 is the schematic diagram of the conical bottom wall of the lathe bed of slime separation device according to an embodiment of the present invention；
Fig. 8 is the device connection figure of slime separation system according to an embodiment of the present invention.
Appended drawing reference:
Slime separation device 100, classifying cyclone 110, liquid-solid fluid bed 120, pan feeding pallet 130, decelerating barrier 140,
Grafting protrusion 150, discharger 111, classifying cyclone underflow opening 112, classifying cyclone feed inlet 113, lathe bed 121, overflow launder
1211, conical bottom wall 1212, controller 122, pressure sensor 123, executing agency 124, compression bar 1241, water supply pipe 125, out
Water pipe 1251, water jet 12511, lamina tecti 126, sorting chamber 127, underflow outlet 128, feed chute 131,
Coal slime storage device 200,
Coarse medium slime screening plant 300, high frequency shale shaker 310, concentrator 320, the first filter press 330,
Coarse coal slurry screening plant 400, concentrate cyclone 410, linear vibrating screen 420,
Cleaned coal flotation unit 500, kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520, the second filter press 530,
Pulp pump 600,
Coarse medium slime a, coarse coal slurry b, tail coal mud c, floatation clean coal d, recirculated water e.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar unit or unit with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Slime separation device 100 according to an embodiment of the present invention is described below with reference to Fig. 1 to Fig. 8.
As shown in Figure 1, Figure 2 and Figure 3, slime separation device 100 according to an embodiment of the present invention includes: classifying cyclone
110, liquid-solid fluid bed 120 and pan feeding pallet 130, liquid-solid fluid bed 120 have sorting chamber, and pan feeding pallet 130 flows admittedly in liquid
The top for changing bed 120 is connect with liquid-solid fluid bed 120, and pan feeding pallet 130 is located in sorting chamber 127, limit in pan feeding pallet 130
Make the feed chute 131 being connected to sorting chamber 127.
Slime separation device 100 according to an embodiment of the present invention, classifying cyclone 110 is direct by pan feeding pallet 130
Be fixed on liquid-solid fluid bed 120 top so that pan feeding (i.e. coal slime) can directly be flowed out by classifying cyclone 110, and pass through into
Material torr disk 130 is flowed into liquid-solid fluid bed 120, defeated to avoid setting up between classifying cyclone 110 and liquid-solid fluid bed 120
Pipeline is sent, the space hold of slime separation device 100 is reduced, and saves power consumption and material consumption, reduces slime separation work
The production cost of industry.
In the following, the working principle of the slime separation device 100 of the embodiment of the present invention is described in detail: slime separation dress
Setting 100 includes classifying cyclone 110, pan feeding pallet 130 and liquid-solid fluid bed 120.Coal slime is transported to point by Pulp pump 600
In grade cyclone 110, in classifying cyclone 110, the centrifugal sedimentation to coal slime is realized, so that small grain size coal slime is in classification eddy flow
Overflowed above device 110, big granularity coal slime flows out below classifying cyclone 110, thus by flowing out below classifying cyclone 110
Big granularity coal slime is accommodated in pan feeding pallet 130, and then is flowed into liquid-solid fluid bed 120 by pan feeding pallet 130, and in liquid
It is sorted in solid fluid bed 120 as small density coal slime and big density coal slime.
It should be noted that in the assorting room of coal slime, the granularity (i.e. the partial size of coal slime particle) and coal slime of coal slime
Density have large effect to the sorting of coal slime.Therefore, the present invention is carried out by granularity of the classifying cyclone 110 to coal slime
Classification, is classified into big granularity coal slime and small grain size coal slime two parts for coal slime, and then pass through liquid-solid fluid bed 120 pairs of big granularities
Coal slime is further sorted, and by sorting at small density coal slime and big density coal slime two parts so that liquid-solid fluid bed
The particle size range of big granularity coal slime in 120 is more concentrated, and is reduced interference of the granularity to coal slime settling effect, is made liquid-solid fluid bed
The delaminating deposition effect of coal slime in 120 is more preferable.
In specific embodiment shown in Fig. 3, classifying cyclone underflow opening 112 is protruded into feed chute 131.Exist as a result,
In the course of work of slime separation device 100, the liquid higher than classifying cyclone underflow opening 112 could be formed in feed chute 131
Face forms air column to prevent air from entering in classifying cyclone 110, so improve classifying cyclone 110 to coal slime
Grading effect.
It should be noted that classifying cyclone 110 generates vortex by rotation, to make coal slime quilt under the influence of centrifugal force
Classification, in classification process, nearby pressure is lower than external atmosphere pressure to the central axis of classifying cyclone 110, and outside air is through dividing
Grade cyclone underflow opening 112, which enters in classifying cyclone 110 and is formed as air column, can reduce the classification of classifying cyclone 110
Effect.
As shown in figures 1 and 3, grafting protrusion 150 is additionally provided in pan feeding pallet 130, grafting protrusion 150 is through classifying cyclone
Underflow opening 112 protrudes into classifying cyclone underflow opening 112 partially to stop classifying cyclone underflow opening 112.Specifically, in pan feeding
Multiple grafting protrusions 150 are provided in the circumferential direction of pallet 130, grafting protrusion 150 passes through classifying cyclone underflow opening 112 to protrude into
Into classifying cyclone 110.The setting for passing through grafting protrusion 150 as a result, not only can further prevent the shape of air column
At, and the big granularity coal slime being located in pan feeding pallet 130 can be prevented in the work of classifying cyclone 110 and extraneous pressure difference
It under, flows back into classifying cyclone 110, to be effectively prevented from the appearance of suck-back phenomenon, improves the work of classifying cyclone 110
Stability.
In Fig. 1, Fig. 2, specific embodiment shown in Fig. 3, liquid-solid fluid bed 120 further include decelerating barrier 150, is slowed down
Baffle 150 is protruded into feed chute 131 and is spaced apart with the bottom wall of feed chute 131, and decelerating barrier 150 is radially positioned classification rotation
It flows between device 110 and the side wall of pan feeding pallet 130.
Specifically, the top of feed chute 131, the bottom wall of decelerating barrier 150 and feed chute 131 is arranged in decelerating barrier 150
Between the space that limits and the region where decelerating barrier 150 and classifying cyclone 110 be formed as being decelerated baffle 150 and divide
Every two layers of feed chute 131, and be connection between two layers.Not only it can hold and buffer by pan feeding pallet 130 as a result,
The big granularity coal slime flowed out by classifying cyclone underflow opening 112, and big granularity coal slime can be carried out by decelerating barrier 150
Preliminary flow velocity is cut down, and is further cut down by the outer wall of feed chute 131 flow velocity of big granularity coal slime, so that through
The flow velocity that pan feeding pallet 130 is flowed into the big granularity coal slime in liquid-solid fluid bed 120 is lower, and enters big granularity coal slime level stream
To in liquid-solid fluid bed 120, to reduce impact of the big granularity coal slime to liquid-solid fluid bed 120.
It is existing to the pan feeding mode for adding big granularity coal slime in liquid-solid fluid bed 120 to be here it is possible to understand
Big granularity coal slime (is directly added to liquid in liquid-solid fluid bed 120 top to fluidize admittedly in a manner of near vertical by heart pan feeding
In bed 120), it will lead to big granularity coal slime to liquid-solid fluid bed 120 impact, and then reduce liquid-solid fluid bed 120 separating effect.
As shown in figure 3, liquid-solid fluid bed 120 include lathe bed 121 and lamina tecti 126, pan feeding pallet 130 is located at sorting chamber
In room 127, internal discharge gate, feed chute 131 and sorting chamber 127 are limited between lamina tecti 126 and pan feeding pallet 130 jointly
Between connected by internal discharge gate.In this way, not only can by the upper inlet of 126 the cover of lamina tecti liquid-solid fluid bed 120,
To prevent small grain size coal slime or unassorted coal slime from entering in liquid-solid fluid bed 120, and can by lamina tecti 126,
Keep the flow for the big granularity coal slime being drained into liquid-solid fluid bed 120 in feed chute 131 more stable.
Further, the axial direction for extending perpendicularly to sorting chamber 127 of internal discharge gate.It is liquid-solid fluid bed as a result,
120 intermediate region limits internal discharge gate, to facilitate the arrangement of feed chute 131, makes each portion in slime separation device 100
The spatial distribution of part is more reasonable.
As shown in Figure 1, the number of classifying cyclone 110 be it is multiple, decelerating barrier 150 be annular, multiple classifying cyclones
110 are distributed in the inside of decelerating barrier 150.Thus, it is possible to according to the production needs of slime separation device 100, in decelerating barrier
Multiple classifying cyclones 110 are arranged in 150 inside so that the productivity of classifying cyclone 110 with liquid-solid fluid bed 120 production
Power matches, and then production capacity is avoided to waste, and improves production efficiency, reduces cost.
As shown in Fig. 2, the number of classifying cyclone 110 be it is multiple, decelerating barrier 150 be annular, multiple classifying cyclones
110 is uniformly distributed on the inside of decelerating barrier 150.In this way, can be arranged in the annular region that the decelerating barrier 150 of annular limits more
A classifying cyclone 110, so that the coal slime that multiple classifying cyclones 110 are classified can satisfy liquid-solid fluid bed 120 production
It needs, so that the productivity collocation between multiple classifying cyclones 110 and liquid-solid fluid bed 120 is more reasonable, when improving unit
The production efficiency of interior slime separation device 100.
As shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 7, liquid-solid fluid bed 120 include: lathe bed 121, and sorting is limited in lathe bed 121
Chamber 127, the open top of lathe bed 121 are simultaneously formed with overflow launder 1211, and overflow launder 1211 has material overflow port, pan feeding pallet 130
It is connect in the inner wall of lathe bed 121 with lathe bed 121, lathe bed 121 is including annular inner sidewall, lateral wall and is connected to inside
Multiple conical bottom walls 1212 between wall and lateral wall, multiple conical bottom walls 1212 are uniformly distributed along the circumferential direction of lathe bed 121, each taper
The bottom of bottom wall 1212 has underflow outlet 128.
Specifically, big granularity coal slime is sorted into small density coal slime and big density coal slime two in liquid-solid fluid bed 120
Part, small density coal slime are flowed into overflow launder 1211 along the upper end of lathe bed 121, and are discharged by material overflow port, big density coal slime
It is deposited in the centrum that multiple conical bottom walls 1212 limit.In this way, being deposited on big density coal slime in multiple centrums, not only make
The deposition effect of big density coal slime is more preferable, and increases the dehydration area of the big density coal slime in unit volume, makes big density
Faster, dehydrating effect is more preferable for coal slime dewatering, to improve liquid-solid fluid bed 120 dehydration efficiency.
As depicted in figs. 1 and 2, liquid-solid fluid bed 120 further include: controller 122, pressure sensor 123 and execution machine
Structure 124, pressure sensor 123 are set in sorting chamber 127, and pressure sensor 123 is electrically connected with controller 122 to believe pressure
Breath is sent to controller 122, and executing agency 124 has compression bar 1241, and a part of compression bar 1241 protrudes into sorting chamber 127 simultaneously
Underflow outlet 128 is blocked, controller 122 is electrically connected with executing agency 124, to drive executing agency when pressure is more than preset value
124 act and lift compression bar 1241 from underflow outlet 128.
In this way, can by multiple pressure sensors 123 with to sorting chamber 127 in pressure carry out real-time measurement, with
When sorting 127 some region of hypertonia of chamber, make the accordingly unlatching of underflow outlet 128, so that in sorting chamber 127
Pressure distribution is more uniform, and then keeps the distribution of big density coal slime liquid-solid fluid bed 120 inside more uniform, reduction bed pressure
Fluctuation keeps liquid-solid fluid bed 120 separating effect more ideal.
In specific embodiment shown in Fig. 4, liquid-solid fluid bed 120 further include: water supply pipe 125, water supply pipe 125
With the outlet pipe 1251 being located in sorting chamber 127, the number of outlet pipe 1251 be it is multiple, each outlet pipe 1251 is along lathe bed
121 radially extend and multiple outlet pipes 1251 are uniformly distributed along the circumferential direction of lathe bed 121, have on each outlet pipe 1251 multiple along bed
The water jet 12511 that the radial direction of body 121 is sequentially distributed, water jet 12511 on outlet pipe 1251 from inside to outside distribution density by
It is cumulative big.
In this way, not only outlet pipe 1251 radially distributed in sorting chamber 127 makes to be formed uniformly in sorting chamber 127
Ascending current, and the water jet 12511 that density is gradually increased from inside to outside can effectively buffer pan feeding impact, in turn
It is consistent with the ascending current flow velocity in remaining region to make the flow velocity of the ascending current in liquid-solid fluid bed 120 pan feeding region, and then makes
Liquid-solid fluid bed 120 efficiency of separation is more stable, and job stability is higher.
It is described in detail referring to the course of work of the Fig. 1 to the slime separation device 100 of the embodiment of the present invention.
As shown in Figure 1, firstly, water supply pipe 125 supplies water to liquid-solid fluid bed 120, so as to be formed in liquid-solid fluid bed 120
Ascending current, and it is flowed into a part of water in feed chute 131 so that the liquid level of water did not had classifying cyclone bottom in feed chute 131
Head piece 112.
In turn, it is driven into coal slime in classifying cyclone 110 through Pulp pump 600, is classified in classifying cyclone 110
Big granularity coal slime and small grain size coal slime, small grain size coal slime are discharged to down by being located at the discharger 111 of 110 top of classifying cyclone
One process, big granularity coal slime flows out in pan feeding pallet 130 by classifying cyclone underflow opening 112, in pan feeding pallet 130,
Big granularity coal slime flows out to liquid-solid fluid bed 120 by the side wall of feed chute 131 by after buffering reduction of speed.
In liquid-solid fluid bed 120, big granularity coal slime is sorted into big density coal slime and small density coal slime, small density coal slime
Under the action of ascending current, sorting chamber 127 is flowed out along overflow launder 1211, and be discharged to subsequent processing through material overflow port, it is big close
Degree coal slime is deposited on multiple 128 tops of underflow outlet, and multiple pressure sensors 123 acquire multiple 128 tops of underflow outlet respectively
Pressure, and pressure be more than calibration value when, by controller 122 make executing agency 124 it is electric, thus in executing agency 124
Driving under, compression bar 1241 works so that underflow outlet 128 is opened, and then makes big density coal slime discharge liquid-solid fluid bed 120,
To complete the sorting of coal slime, and when below pressure recovery to calibration value, underflow outlet 128 is closed.
Wherein, the corresponding executing agency 124 of each pressure sensor 123 and a controller 122 and each
Pressure sensor 123 can work independently with corresponding executing agency 124 and controller 122, so that some or multiple bottoms
Outflux 128 is opened, to maintain the pressure in sorting chamber 127 to stablize.
Thus, it is possible to reach following technical effect:
(1) make to form good working environment inside classifying cyclone 110, be effectively prevented the generation of air column, and prevent
The only appearance of suck-back phenomenon improves the grading effect of classifying cyclone 110.
(2) stream that big granularity coal slime flows to liquid-solid fluid bed 120 is reduced by pan feeding pallet 130 and decelerating barrier 150
Speed, and be allowed to flow into liquid-solid fluid bed 120 in the horizontal direction, to reduce impact of the big granularity coal slime to liquid-solid fluid bed 120, mention
The separating effect of height liquid-solid fluid bed 120.
(3) multiple classifying cyclones 110 can be arranged, so that liquid fluidizes admittedly according to liquid-solid fluid bed 120 separation velocity
Bed 120 and the production collocation of classifying cyclone 110 are more reasonable, improve production efficiency, reduce production capacity waste.
(4) multiple pressure sensors 123, compression bar 1241 and the setting of executing agency 124 make the pressure for sorting chamber 127
Power distribution is more uniform, and then the material for making to sort in chamber 127 is distributed more uniform, the bed density phase one of each region
It causes, so that liquid-solid fluid bed 120 separating effect keeps stable, reliable.
(5) by the setting of multiple conical bottom walls 1212 below sorting chamber 127, make in big density coal slime unit volume
Dehydration area it is bigger, to effectively improve the dehydration efficiency of big density coal slime.
As shown in figure 8, according to a second aspect of the present invention the slime separation system of embodiment include: coal slime storage device 200,
As in above-described embodiment slime separation device 100, coarse medium slime a screening plant 300, coarse medium slime a screening plant 400 and
Cleaned coal flotation unit 500.
Wherein, coal slime storage device 200 is revolved for storing coal slime raw material, the discharge port of coal slime storage device 200 and classification
It flows device feed inlet 113 to connect, classifying cyclone 110 has discharger 111, and liquid-solid fluid bed 120 bottom has underflow outlet
128。
Coarse medium slime a screening plant 300 includes high frequency shale shaker 310, concentrator 320 and the first filter press 330, high frequency
Vibrating screen 310 is suitable for sifting out coarse medium slime a and supplies liquid after sieve to concentrator 320, the solid outlet of concentrator 320 and the
The connection of one filter press 330, and the liquid outlet of concentrator 320 is connect with the liquid outlet of the first filter press 330, the first filter press
330 solid outlet is suitable for discharge tail coal mud c.
Coarse medium slime a screening plant 400 includes concentrate cyclone 410 and connect with the underflow opening of concentrate cyclone 410
Linear vibrating screen 420, the underflow opening of concentrate cyclone 410 connect with linear vibrating screen 420, and linear vibrating screen 420 is suitable for sieve
Coarse coal slurry b out.
Cleaned coal flotation unit 500 includes kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520 and the second filter press 530, straight-line oscillation
Liquid converges with the overflow port of concentrate cyclone 410, the discharger 111 of classifying cyclone 110 and prepares with ore pulp after 420 sieve of sieve
The feed inlet of device 510 is connected to, and the outlet of kaskad apparatus for pre-flotation pulp conditioning 510 is connect with flotation column 520, the bottom outlet of flotation column 520 with it is dense
The feed inlet of machine 320 connects, and the overflow port of flotation column 520 is connected to the feed inlet of the second filter press 530, the second filter press 530
Solid outlet be suitable for discharge floatation clean coal d, the liquid outlet of filter press is suitable for being connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning 510.
Coal slime is supplied in slime separation device 100 by coal slime storage device 200 as a result, and slime separation device 100 is by coal
After mud sorting classifying, it is fed separately to coarse medium slime a screening plant 300, coarse medium slime a screening plant 400 and cleaned coal flotation
Device 500 is to respectively obtain coarse medium slime a, coarse coal slurry b, tail coal mud c and floatation clean coal d.
As shown, present invention further proposes a kind of method for separating using above-mentioned slime separation system to include:
Classification and sorting: coal slime raw material is sub-elected into small grain size coal slime and big granularity coal slime, big grain by cyclonic separation process
Degree coal slime fluidizes process sorting admittedly through liquid to obtain big density coal slime and small density coal slime；
Coarse medium slime a sorting: big density coal slime is selected through high frequency shale shaker 310, coarse medium slime a, screenings are obtained on sieve
It is dehydrated, filters pressing, finally obtains tail coal mud c and recirculated water e；
Coarse coal slurry b sorting: small density coal slime being concentrated, is screened to the solid obtained after concentration, on sieve
To coarse coal slurry b, the liquid of the generation in screenings and enrichment process is conveyed to flotation；
Cleaned coal flotation: by small grain size coal slime obtained in classification and sorting, coarse coal slurry b sorting obtained in screenings with it is dense
The liquid of generation in contracting process is mixed together, flotation, filters pressing, to obtain floatation clean coal d, the liquid that filters pressing generates after filters pressing
It is back to mixed processes.
Slime separation system of the invention and method for separating are described in detail referring to Fig. 8.
As shown in figure 8, slime separation system includes coal slime storage device 200, slime separation device 100, coarse medium slime a sieve
Screening device 300, coarse medium slime a screening plant 400 and cleaned coal flotation unit 500.Wherein, slime separation device 100 is by being classified
Cyclone 110, liquid-solid fluid bed 120 and pan feeding pallet 130 form；Coarse medium slime a screening plant 300 is by high frequency shale shaker
310, concentrator 320 and the first filter press 330 composition；Coarse medium slime a screening plant 400 is by concentrate cyclone 410 and straight line
Vibrating screen 420 forms；Cleaned coal flotation unit 500 is made of kaskad apparatus for pre-flotation pulp conditioning 510, flotation column 520 and the second filter press 530.
As shown in figure 8, method for separating is to inject ascending current in liquid-solid fluid bed 120, until shape in liquid-solid fluid bed 120
At after uncertain ascending current and after ascending current do not had classifying cyclone underflow opening 112.Make storage in coal slime storage device 200
Unprocessed coal slime, be flowed into classifying cyclone 110 under the action of Pulp pump 600, divided in classifying cyclone 110
At big granularity coal slime and small grain size coal slime, small grain size coal slime flows through the discharger 111 of classifying cyclone 110 and is imported into essence grade
In coal flotation device 500.
Big granularity coal slime is flowed into pan feeding pallet 130 by classifying cyclone underflow opening 112, then by pan feeding pallet 130
It is flowed into liquid-solid fluid bed 120, big density coal slime and small density coal slime is sorted into liquid-solid fluid bed 120, it is small close
Coal slime is spent under the action of ascending current, via liquid-solid fluid bed overflow port outflow liquid-solid fluid bed 120 and is imported into coal in thick
Mud a screening plant 400, big density coal slime deposit in liquid-solid fluid bed 120, and when pressure exceeds setting value, in the machine of execution
Open liquid-solid fluid bed 120 underflow outlet 128 under the action of structure 124, and then big density coal slime is flowed into coarse medium slime a sieve
In screening device 300.
Further, screening of the big density coal slime in coarse medium slime a screening plant 300 in high frequency shale shaker 310
Under be divided into coarse medium slime a and screenings two parts, after screenings is dehydrated into concentrator 320, enter the first filter press 330 into
One step is dehydrated and is formed as tail coal mud c, and the moisture of abjection is continued to participate in the form of recirculated water e in sorting process.
After small density coal slime in coarse medium slime a screening plant 400 is concentrated the dehydration of cyclone 410, shake in straight line
It is further sorted on dynamic sieve 420, to be divided into coarse coal slurry b and screenings two parts, screenings is imported into cleaned coal flotation dress
Set 500.
Ore pulp is entered to, small grain size coal slime and together by the screenings in coarse medium slime a screening plant 400 prepare
In device 510, the concentration of small grain size coal slime and screenings is adjusted in kaskad apparatus for pre-flotation pulp conditioning 510, and is allowed to after concentration is suitable
It enters in flotation column 520, flotation column 520 carries out flotation to it, and it is divided into two parts, and a portion enters second
Be formed as floatation clean coal d after 530 flotation of filter press, another part, which enters in concentrator 320, is formed as tail coal mud c after dehydration.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the structure of indication or suggestion meaning or unit must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (12)
1. a kind of slime separation device characterized by comprising
Classifying cyclone；
It is liquid-solid fluid bed, it is described liquid-solid fluid bed with sorting chamber；And
Pan feeding pallet, the pan feeding pallet is in the liquid-solid fluid bed top and the liquid-solid fluid bed connection, the pan feeding
Pallet is located in the sorting chamber room, and the pan feeding pallet has the feed chute with the sorting chamber.
2. slime separation device according to claim 1, which is characterized in that the classifying cyclone has classifying cyclone
Underflow opening, the classifying cyclone underflow opening protrude into the feed chute.
3. slime separation device according to claim 1 or 2, which is characterized in that be additionally provided with grafting in the pan feeding pallet
Protrusion, the grafting protrusion are protruded into the classifying cyclone underflow opening partially to stop the classifying cyclone underflow opening.
4. slime separation device according to claim 1, which is characterized in that it further include decelerating barrier, the decelerating barrier
It protrudes into the feed chute and is spaced apart with the bottom wall of the feed chute, the decelerating barrier is radially positioned the classification rotation
It flows between device and the side wall of the pan feeding pallet.
5. slime separation device according to claim 4, which is characterized in that described liquid-solid fluid bed including lathe bed and the cover
Lamina tecti on the lathe bed, the decelerating barrier are connected to the lamina tecti, and the pan feeding pallet is located at the sorting chamber
Interior, limits internal discharge gate jointly between the lamina tecti and the roof of the pan feeding pallet, the feed chute with it is described
It is connected between sorting chamber by internal discharge gate.
6. slime separation device according to claim 5, which is characterized in that the extending direction of the internal discharge gate is vertical
In the axial direction of the sorting chamber.
7. slime separation device according to claim 5, which is characterized in that the cross section of the sorting chamber is annular,
The side wall of the lathe bed includes inner sidewall and lateral wall, and the pan feeding pallet is connected to the inner sidewall of the sorting unit.
8. slime separation device according to claim 1, which is characterized in that the number of the classifying cyclone be it is multiple,
The decelerating barrier is annular, and multiple classifying cyclones are uniformly distributed in the inside of the decelerating barrier.
9. slime separation device according to claim 1, which is characterized in that described liquid-solid fluid bed to include:
Lathe bed, limits the sorting chamber in the lathe bed, and the open top of the lathe bed forms material overflow port, it is described enter material torr
Disk is connect in the inner wall of the lathe bed with the lathe bed, and the lathe bed includes inner sidewall, lateral wall and the connection of annular
Multiple conical bottom walls between the inner sidewall and the lateral wall, the multiple conical bottom wall is along the circumferential equal of the lathe bed
The bottom of cloth, each conical bottom wall has underflow outlet.
10. slime separation device according to claim 8, which is characterized in that described liquid-solid fluid bed further include:
Water supply pipe, the water supply pipe, which has, is located at the indoor outlet pipe of the sorting chamber, and the number of the outlet pipe is more
It is a, each outlet pipe along the lathe bed radially extend and multiple outlet pipes are uniformly distributed along the circumferential direction of the lathe bed, often
The water jet being sequentially distributed on a outlet pipe with multiple radial directions along the lathe bed, water jet on the outlet pipe from
Distribution density is gradually increased from inside to outside.
11. a kind of slime separation system characterized by comprising
Coal slime storage device, the coal slime storage device is for storing coal slime raw material；
Such as slime separation device of any of claims 1-10, the discharge port of the coal slime storage device with described point
The feed inlet connection of grade cyclone, the classifying cyclone have discharger, and the liquid-solid fluid bed bottom is flowed out the bottom of with
Mouthful；
Coarse medium slime screening plant, the coarse medium slime screening plant include high frequency shale shaker, concentrator and the first filter press,
The high frequency shale shaker is suitable for sifting out coarse medium slime and supplying liquid after sieve to concentrator, the solid outlet of concentrator and first
Filter press connection, and the liquid outlet of concentrator and the liquid outlet of the first filter press converge, the solid outlet of the first filter press
Suitable for tail coal mud is discharged；
Coarse coal slurry screening plant, the coarse coal slurry screening plant include concentrate cyclone and the underflow with concentrate cyclone
The linear vibrating screen of mouth connection, the underflow opening of concentrate cyclone are connect with linear vibrating screen, and linear vibrating screen is suitable for sifting out coarse-fine
Coal slime；
Cleaned coal flotation unit, the cleaned coal flotation unit include kaskad apparatus for pre-flotation pulp conditioning, flotation column and the second filter press, the straight line
The overflow port of liquid and concentrate cyclone, the discharger convergence of classifying cyclone and the charging with kaskad apparatus for pre-flotation pulp conditioning after Vibration Screen
Mouth connection, the outlet of the kaskad apparatus for pre-flotation pulp conditioning are connect with flotation column, the charging of the bottom outlet of the flotation column and the concentrator
Mouth connection, the overflow port of the flotation column are connected to the feed inlet of second filter press, and the solid of second filter press goes out
Mouth is suitable for discharge floatation clean coal, and the liquid outlet of the filter press is suitable for being connected to the feed inlet of kaskad apparatus for pre-flotation pulp conditioning.
12. a kind of method for separating using the slime separation system described in claim 11 characterized by comprising
Classification and sorting: coal slime raw material is sub-elected into small grain size coal slime and big granularity coal slime, the big grain by cyclonic separation process
Degree coal slime fluidizes process sorting admittedly through liquid to obtain big density coal slime and small density coal slime；
Coarse medium slime sorting: big density coal slime being screened through high-frequency vibration, obtains coarse medium slime on sieve, screenings is dehydrated,
Filters pressing finally obtains tail coal mud and recirculated water；
Coarse coal slurry sorting: small density coal slime is concentrated, the solid obtained after concentration is screened, is obtained on sieve coarse-fine
The liquid of generation in coal slime, screenings and enrichment process is conveyed to flotation；
Cleaned coal flotation: by screenings obtained in small grain size coal slime obtained in classification and sorting, coarse coal slurry sorting and concentration work
The liquid of generation in sequence is mixed together, flotation, filters pressing, to obtain floatation clean coal, the liquid reflux that filters pressing generates after filters pressing
To mixed processes.
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