CN109604042B - Wide-size-fraction pulsating shallow-groove heavy-medium separator - Google Patents
Wide-size-fraction pulsating shallow-groove heavy-medium separator Download PDFInfo
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- CN109604042B CN109604042B CN201811639303.2A CN201811639303A CN109604042B CN 109604042 B CN109604042 B CN 109604042B CN 201811639303 A CN201811639303 A CN 201811639303A CN 109604042 B CN109604042 B CN 109604042B
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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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
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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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/36—Devices therefor, other than using centrifugal force
- B03B5/40—Devices therefor, other than using centrifugal force of trough type
- B03B2005/405—Devices therefor, other than using centrifugal force of trough type using horizontal currents
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a wide-size-fraction pulsating shallow-groove heavy-medium separator which comprises a separation groove, a pulsating valve, a coal-medium mixing box, a clean coal discharge device and a scraper stone discharge device, wherein the separation groove is fixed on an equipment base, one side of the separation groove is provided with a stone discharge port, the bottom of the separation groove is connected with an ascending medium pipe, the pulsating valve is arranged on the ascending medium pipe, a control coil of the pulsating valve is connected with a pulse signal, the coal-medium mixing box and the clean coal discharge device are respectively arranged at a feeding end and a discharging end of the separation groove, and the scraper stone discharge device is arranged at the bottom of the separation groove and corresponds to the stone discharge port. The invention controls the repeated opening and closing of the pulse valve to enable the ascending medium to form the pulse ascending flow, and the pulse ascending flow can prevent the medium from precipitating to cause density change under the condition of low medium flow velocity, ensure the uniform density of the longitudinal medium in the separation tank and avoid the floating of high-density small particle substances, thereby effectively improving the separation effect of the raw coal.
Description
Technical Field
The invention relates to shallow-groove heavy medium sorting equipment for coal dressing, in particular to a wide-size-fraction pulsating energy-saving shallow-groove heavy medium sorting machine, and belongs to the technical field of separation.
Background
The shallow slot heavy medium separator is lump coal separation equipment, has high separation efficiency and strong adaptability, is a substitute device of a movable sieve jig, an inclined wheel heavy medium separator and an upright wheel heavy medium separator, is a preferred lump coal gangue discharge device of a large-scale power coal separation plant, and has wide market application prospect.
When the existing shallow-groove heavy medium separator operates, the medium flow in the separation groove comprises stable ascending flow and horizontal flow, the ascending medium flow accounts for 20% of the total suspension, and the horizontal medium flow accounts for 80% of the total suspension. The ascending medium flow greatly affects the sinking of small-granularity high-density particles, when the ascending medium flow velocity is larger than the sinking velocity of small-granularity high-density particles, the small-granularity high-density particles are inevitably mixed into the floating objects to seriously affect the floating object quality, and when the ascending medium flow velocity is too small, the medium in the separation tank is easy to precipitate, so that the medium density in the separation tank is longitudinally unstable, and the separation effect is affected.
Due to the reasons, the shallow slot dense medium separator has narrow separation size fraction and higher lower limit, is mainly used for separating 13-150mm coal, and has more high-density small particles in overflow when the-13 mm coal is separated, thereby influencing the quality of clean coal. Meanwhile, the shallow slot dense medium separator has a lower separation upper limit, is mainly used for separation of coal with the size of-150 mm, when the upper limit is larger than 150mm, large particles in overflow are easy to accumulate at the overflow port, the flow rate of a horizontal medium is increased, and the increase of the horizontal flow can not only shorten the separation time of raw coal in the slot and influence the separation effect, but also increase the power of a circulating medium pump, thereby increasing the processing cost; if the horizontal flow is too small, the raw coal cannot be effectively wetted, and the separation effect and the processing capacity are affected.
In summary, due to the unreasonable structure, the application of the existing shallow slot heavy medium separator is limited to a certain extent, and a wide-size efficient energy-saving shallow slot heavy medium separator is urgently needed.
Disclosure of Invention
The invention aims to provide a wide-size-fraction pulsating shallow-groove heavy-medium separator aiming at the defects of the prior art so as to improve the separation effect of raw coal.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a wide size fraction pulsation shallow slot dense medium sorter, includes that separation tank, pulsation valve, coal are situated between mixing box, clean coal discharge device and scraper blade and arrange the stone device in the constitution, the separation tank is fixed on equipment foundation, and one side of separation tank is equipped with row's stone mouth, and the bottom is connected with the medium pipe that rises, the pulsation valve is installed on the medium pipe that rises, and the control coil of pulsation valve connects pulse signal, the pan feeding end and the discharge end at the separation tank are installed respectively to coal situated between mixing box and clean coal discharge device, the stone device is arranged to the scraper blade and is installed in the bottom of separation tank and corresponding with row's stone mouth.
Above-mentioned wide size fraction pulsation shallow slot dense medium sorter, clean coal discharge device is including arranging the bin stock, arranging the material impeller and arranging the material motor, one side of arranging the bin stock is equipped with the bin outlet, and the opposite side is equipped with the feed inlet that docks mutually with the discharge gate on separation trough upper portion, arrange the material impeller and install in the bin stock and be located between the feed inlet and the bin outlet of arranging the bin stock, it constitutes the drive relation at the bin stock outside and through speed reducer and row material impeller to arrange the material motor.
Above-mentioned wide size fraction pulsation shallow slot dense medium sorter, the coal is said the mixing box and is included the box and go into the pipe, box one end is equipped with the pan feeding mouth, and the other end is equipped with the discharge gate that docks mutually with the feed inlet of separation groove, the one end and the box intercommunication of going into the pipe of mediating, the horizontal medium source of another termination.
Above-mentioned wide size fraction pulsation shallow slot dense medium sorter, scraper blade stone discharge device is including scraping chain, drive sprocket, driven sprocket and stone discharge motor, drive sprocket and driven sprocket install on the separation tank, scrape the chain around on drive sprocket and driven sprocket and pass through from the bottom and the stone discharge mouth in separation tank, the stone discharge motor is fixed on the separation tank and is connected with drive sprocket through drive mechanism.
In the wide-size-fraction pulsating shallow-groove dense-medium separator, the blades of the discharge impeller are provided with liquid leakage holes.
According to the wide-size-fraction pulsating shallow-groove heavy-medium separator, each scraper of the scraper chain is provided with the liquid leakage holes in a distributed mode.
The invention controls the repeated opening and closing of the pulse valve to enable the ascending medium to form the pulse ascending flow, and the pulse ascending flow can prevent the medium from precipitating to cause density change under the condition of low medium flow velocity, ensure the uniform density of the longitudinal medium in the separation tank and avoid the floating of high-density small particle substances, thereby effectively improving the separation effect of the raw coal.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a sectional view A-A;
FIG. 4 is a schematic structural view of a coal mixing box;
fig. 5 is a left side view of fig. 4.
The reference numbers in the figures are: 1. the coal medium separation device comprises a coal medium mixing box, 1-1 box body, 1-2 medium inlet pipes, 2 separation tank, 3 pulse valve, 4 clean coal discharge device, 4-1 discharge impeller, 4-2 discharge box, 4-3 discharge motor, 5 scraper stone discharge device, 5-1 scraper chain, 5-2 driven chain wheel, 5-3 stone discharge motor, 5-4 driving chain wheel, 6 stone discharge port and 7 ascending medium pipe.
Detailed Description
The invention provides a wide-grain-size pulsating shallow-groove heavy-medium separator which has wide separation grain size (high upper separation limit and low lower separation limit), high separation efficiency and good energy-saving effect.
Referring to fig. 1 to 4, the invention mainly comprises a coal media mixing box 1, a separation tank 2, a pulse valve 3, a clean coal discharging device 4 and a scraper stone discharging device 5.
The coal medium mixing box 1 comprises a box body 1-1 and a medium inlet pipe 1-2, the box body 1-1 is a semi-closed box body and is arranged at a material inlet end of a heavy medium sorting tank 2, raw coal and horizontal medium flow are fed through a material inlet at the upper part of the box body 1-1 and the medium inlet pipe 1-2 at the side surface of the box body 1-1 respectively, the pressure of the horizontal medium flow is large, the raw coal and the medium are fully stirred and wetted in the coal medium mixing box body under the action of high-speed medium flow, the medium is guaranteed to be fully contacted with the raw coal, the wetting of the raw coal is accelerated, the free agglomeration of the raw coal is prevented, and the uniform dispersion of.
The separation tank 2 is a box body filled with media and provides a separation space, raw coal is layered in the separation tank according to density, and heavy products are discharged through a scraper stone discharging device 5; and discharging the light products through a clean coal discharging device 4, and finally realizing the sorting according to the density.
The pulsating valve 3 is arranged on the ascending medium pipe 7 to realize the pulsation of the medium in the separation tank, ensure the uniformity of the density of the longitudinal medium in the separation tank and prevent the density change caused by medium precipitation; it also reduces the mismatch of high density small particles into the floe.
The clean coal discharging device is arranged at the discharging end of the separation tank, the clean coal discharging device adopts a reverse coal flow immersion forced discharging mode and mainly comprises a discharging impeller 4-1, a discharging box 4-2 and a discharging motor 4-3, holes are formed in discharging blades of the discharging impeller 4-1, adverse effects of water flow turbulence caused by water flow resistance on separation can be reduced, large-granularity clean coal can be discharged forcibly, the large-granularity clean coal can be guaranteed to be discharged out of the separation tank in time under the condition that 30% of horizontal medium flow is reduced, and therefore energy consumption can be reduced.
The scraper stone-discharging device 5 mainly comprises a scraper chain 5-1, a driven chain wheel 5-2, a stone-discharging motor 5-3 and a driving chain wheel 5-4, is arranged at the bottom of the separation tank, and can discharge high-density gangue sinking at the bottom of the separation tank in time. Holes are uniformly formed in the scrapers arranged along the scraper chain 5-1 (as shown in figure 3), so that the resistance during movement can be reduced, and the dewatering effect can be achieved after the liquid surface is discharged.
The working principle of the invention is as follows:
the raw coal and the suspension are respectively fed from a coal medium mixing box of the separator and an ascending medium pipe at the bottom of the separation tank, the suspension fed from the coal medium mixing box forms a horizontal medium flow, and the suspension fed from the ascending medium pipe at the bottom forms an ascending medium flow. The horizontal medium flow plays a role in conveying the floating materials, determines the residence time of the floating materials in the separation tank, influences the separation effect, influences the speed of the floating materials discharged from the separation tank, replenishes the suspension liquid all the time, and keeps the density of the suspension liquid in the separation tank stable. Ascending medium flow is discontinuously fed into the separation groove through the pulse valve to form pulse ascending flow, so that the stability of suspension can be ensured, the wrapping and agglomeration properties of particle groups can be damaged, the sinking of small-granularity high-density particles is promoted, and the possibility that the small-granularity high-density particles are mismatched to floats is reduced.
After raw coal enters a suspension liquid separation tank filled with certain density from a coal medium mixing box, according to the Archimedes law, materials smaller than the density of the suspension liquid float upwards, materials larger than the density of the suspension liquid sink, the materials are firstly layered according to the density and are divided into two products according to the density, heavy products with large density sink to the bottom of the tank and are discharged by a scraper stone discharge device, light products with small density are conveyed to the discharge end of the separation tank along with the medium flow of a horizontal medium and are discharged by a clean coal discharge device, and finally the materials are separated according to the density.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. The utility model provides a wide size fraction pulsation shallow slot dense medium sorter, characterized by, including clean coal discharge device (4) and scraper blade row stone device (5) of separation tank (2), pulsation valve (3), coal-mediated mixing box (1), the contrary coal stream submergence compulsory row material mode of constituting, separation tank (2) are fixed on the equipment foundation, and one side of separation tank (2) is equipped with row stone mouth (6), and the bottom of separation tank (2) is connected with ascending medium pipe (7), install on ascending medium pipe (7) pulsation valve (3), and the control coil of pulsation valve (3) connects pulse signal, the pan feeding end and the discharge end in separation tank (2) are installed respectively to coal-mediated mixing box (1) and clean coal discharge device (4), scraper blade row stone device (5) are installed in the bottom of separation tank (2) and are corresponding with row stone mouth (6), clean coal discharge device (4) are including arranging hopper (4-2), Arrange material impeller (4-1) and arrange material motor (4-3), one side of arranging material case (4-2) is equipped with the bin outlet, and the opposite side is equipped with the feed inlet that docks mutually with the discharge gate on separation trough (2) upper portion, arrange material impeller (4-1) and install in arranging material case (4-2) and lie in between the feed inlet and the bin outlet of arranging material case (4-2), arrange material motor (4-3) and fix in arranging material case (4-2) outside and through speed reducer and arrange material impeller (4-1) constitution drive relation.
2. The wide-size-fraction pulsating shallow-groove heavy-medium separator as claimed in claim 1, wherein the coal-medium mixing box (1) comprises a box body (1-1) and a medium inlet pipe (1-2), one end of the box body (1-1) is provided with a material inlet, the other end of the box body is provided with a material outlet which is connected with the material inlet of the separation groove (2), one end of the medium inlet pipe (1-2) is communicated with the box body (1-1), and the other end of the medium inlet pipe is connected with a horizontal medium source.
3. The wide-size-fraction pulsating shallow-groove heavy-medium separator as claimed in claim 2, wherein the scraper stone-discharging device (5) comprises a scraper chain (5-1), a driving sprocket (5-4), a driven sprocket (5-2) and a stone-discharging motor (5-3), the driving sprocket (5-4) and the driven sprocket (5-2) are installed on the separation groove (2), the scraper chain (5-1) is wound on the driving sprocket (5-4) and the driven sprocket (5-2) and passes through the bottom of the separation groove (2) and a stone-discharging opening (6), and the stone-discharging motor (5-3) is fixed on the separation groove (2) and is connected with the driving sprocket (5-4) through a transmission mechanism.
4. The wide-grade pulsating shallow-groove heavy-medium separator as claimed in claim 3, wherein the discharge impeller (4-1) has liquid leakage holes distributed on its blades.
5. The wide-size-fraction pulsating shallow-groove heavy-media separator as claimed in claim 4, wherein each scraper of said scraper chain (5-1) has liquid leakage holes distributed thereon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811639303.2A CN109604042B (en) | 2018-12-29 | 2018-12-29 | Wide-size-fraction pulsating shallow-groove heavy-medium separator |
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| CN201811639303.2A CN109604042B (en) | 2018-12-29 | 2018-12-29 | Wide-size-fraction pulsating shallow-groove heavy-medium separator |
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| CN109604042A CN109604042A (en) | 2019-04-12 |
| CN109604042B true CN109604042B (en) | 2021-03-09 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112844797B (en) * | 2021-02-18 | 2022-06-24 | 中国矿业大学(北京) | Dense medium separator and separation system |
| WO2022188177A1 (en) * | 2021-03-12 | 2022-09-15 | 方甡 | Sorting apparatus and combustion furnace provided with same |
| CN113210122B (en) * | 2021-04-27 | 2023-03-24 | 国能包头能源有限责任公司 | Heavy-medium shallow slot sorting machine and sorting method using same |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006476Y (en) * | 2007-01-08 | 2008-01-16 | 王迪业 | Heavy- medium shallow slot separator |
| CN101767051A (en) * | 2010-03-03 | 2010-07-07 | 中国矿业大学 | Fluidization classification equipment and method |
| CN101804382A (en) * | 2010-03-03 | 2010-08-18 | 中国矿业大学 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
| CN101927210A (en) * | 2009-06-25 | 2010-12-29 | 威海市海王旋流器有限公司 | Pulse turbulence flow field fluidized mineral separator |
| JP2012115838A (en) * | 2012-02-14 | 2012-06-21 | Kubota Corp | Wet sorting apparatus |
| CN203565186U (en) * | 2013-07-05 | 2014-04-30 | 安徽理工大学 | Microbubble impulsive motion liquid-solid fluidized bed coarse coal slime sorting machine |
| CN203899729U (en) * | 2014-06-27 | 2014-10-29 | 天地（唐山）矿业科技有限公司 | Pulsating-flow teetered bed separator suitable for separation of coarse coal slime in wide granularity grade |
| CN204710544U (en) * | 2015-05-26 | 2015-10-21 | 株洲天桥舜臣选煤机械有限责任公司 | Separator of heavy medium shallow slot discharge device |
| CN206104098U (en) * | 2016-09-30 | 2017-04-19 | 沈阳中矿科技有限公司 | Two product shallow slots sorter that heavily is situated between |
| CN107282284A (en) * | 2017-08-07 | 2017-10-24 | 中煤科工集团唐山研究院有限公司 | Shallow slot heavy-media separator with the uniform and stable monitoring adjustment system of density field |
| CN208050149U (en) * | 2018-02-09 | 2018-11-06 | 韩臻 | A kind of dense-medium shallow-tank separator and its level stream device and upper up-flow device |
| CN208082672U (en) * | 2018-03-07 | 2018-11-13 | 西安科技大学 | A kind of Separator of heavy medium shallow slot Anti-chock device |
| CN108906309A (en) * | 2018-09-04 | 2018-11-30 | 天津美腾科技有限公司 | Dense-medium shallow-tank separation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2558215B1 (en) * | 2010-04-15 | 2017-03-08 | Allmineral Aufbereitungstechnik GmbH&Co. Kg | Multi-deck air jigging machine |
-
2018
- 2018-12-29 CN CN201811639303.2A patent/CN109604042B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201006476Y (en) * | 2007-01-08 | 2008-01-16 | 王迪业 | Heavy- medium shallow slot separator |
| CN101927210A (en) * | 2009-06-25 | 2010-12-29 | 威海市海王旋流器有限公司 | Pulse turbulence flow field fluidized mineral separator |
| CN101767051A (en) * | 2010-03-03 | 2010-07-07 | 中国矿业大学 | Fluidization classification equipment and method |
| CN101804382A (en) * | 2010-03-03 | 2010-08-18 | 中国矿业大学 | Sorting and grading device of pulsating liquid-solid fluidized bed and method thereof |
| JP2012115838A (en) * | 2012-02-14 | 2012-06-21 | Kubota Corp | Wet sorting apparatus |
| CN203565186U (en) * | 2013-07-05 | 2014-04-30 | 安徽理工大学 | Microbubble impulsive motion liquid-solid fluidized bed coarse coal slime sorting machine |
| CN203899729U (en) * | 2014-06-27 | 2014-10-29 | 天地（唐山）矿业科技有限公司 | Pulsating-flow teetered bed separator suitable for separation of coarse coal slime in wide granularity grade |
| CN204710544U (en) * | 2015-05-26 | 2015-10-21 | 株洲天桥舜臣选煤机械有限责任公司 | Separator of heavy medium shallow slot discharge device |
| CN206104098U (en) * | 2016-09-30 | 2017-04-19 | 沈阳中矿科技有限公司 | Two product shallow slots sorter that heavily is situated between |
| CN107282284A (en) * | 2017-08-07 | 2017-10-24 | 中煤科工集团唐山研究院有限公司 | Shallow slot heavy-media separator with the uniform and stable monitoring adjustment system of density field |
| CN208050149U (en) * | 2018-02-09 | 2018-11-06 | 韩臻 | A kind of dense-medium shallow-tank separator and its level stream device and upper up-flow device |
| CN208082672U (en) * | 2018-03-07 | 2018-11-13 | 西安科技大学 | A kind of Separator of heavy medium shallow slot Anti-chock device |
| CN108906309A (en) * | 2018-09-04 | 2018-11-30 | 天津美腾科技有限公司 | Dense-medium shallow-tank separation system |
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