CN209810412U - Shallow slot heavy medium separator - Google Patents
Shallow slot heavy medium separator Download PDFInfo
- Publication number
- CN209810412U CN209810412U CN201920288171.7U CN201920288171U CN209810412U CN 209810412 U CN209810412 U CN 209810412U CN 201920288171 U CN201920288171 U CN 201920288171U CN 209810412 U CN209810412 U CN 209810412U
- Authority
- CN
- China
- Prior art keywords
- shallow slot
- medium
- upflow
- slot body
- shallow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The shallow slot heavy medium separator comprises a shallow slot body, a driving device arranged on the shallow slot body, a gangue discharge part which is arranged in the shallow slot body and driven by the driving device, an upflow medium slot arranged at the bottom of the shallow slot body, a water fluid medium slot arranged on the side surface of the shallow slot body and an overflow weir which is arranged on the shallow slot body and used for discharging light products. The utility model discloses the mismatch when having significantly reduced to select separately, it is higher to select separately the precision, reduces the clean coal loss, has solved the easy problem of blockking up of upflow system, prevents that the indent accident from taking place in the gathering of isopycnic intermediate product in the cell body.
Description
Technical Field
The utility model relates to a lump coal selects equipment of washing, in particular to shallow slot dense medium sorter.
Background
The shallow slot heavy medium separator has become an important lump coal cleaning device for heavy medium coal separation due to the characteristics of high efficiency, good separation effect and strong adaptability. When the shallow slot dense medium separator works, dense medium suspension liquid is respectively fed into the shallow slot body from the lower part and the side surface of the shallow slot body, and fed raw coal is fed into the shallow slot body from the side surface of the separator and is completely immersed into the suspension liquid under the action of the adjusting baffle. At the moment, raw coal begins to be layered in the suspension, low-density objects such as clean coal and the like float on the upper layer, and high-density objects such as gangue and the like sink to the bottom of the tank body. In the sinking process, the low-density matter mixed with the gangue continuously floats upwards after being fully dispersed due to the action of the upward flow, and the low-density matter floating on the upper part is discharged by an overflow weir under the action of the horizontal flow to form a clean coal product; under the action of the gangue discharge part, high-density matters sinking to the bottom of the tank body are discharged from the gangue discharge port to form gangue products, so that the separation process is completed.
The ascending medium flow is fed into the shallow slot body through the ascending medium slot, and the ascending medium flow has the functions of stabilizing the flow velocity of the heavy medium suspension, preventing the iron powder from sinking and enabling the suspension in the slot body to have uniform density. In the current practical application, because the distribution of the upflow medium grooves is uneven, the flow field of the suspension liquid in the groove body is unstable, and vortexes are easily formed in the separation area, so that mismatching substances during separation are increased, the separation precision is limited, the phenomena of clean coal in gangue belt and clean coal in clean belt always occur, the product quality is influenced, and the clean coal loss is caused.
The separation product of the shallow-slot heavy-medium separator is two products of clean coal and gangue, partial materials with similar separation density always suspend in a separation area in the separation process, particularly, in the shutdown process, a large amount of middlings float in suspension liquid and do not float or sink, the partial materials are finally discharged from a gangue discharge port and enter a gangue system, and a large amount of coal loss is caused by long-term accumulation. Meanwhile, the coal quality of some coal preparation plants is seriously muddy, so that the parking and medium removing time is prolonged indefinitely, the serious loss of equipment and electric charge is caused, even an upflow system is blocked, and the labor intensity of workers is greatly increased.
In the operation process of the shallow slot dense medium separator, under the condition of large material quantity similar to separation density, the phenomenon of medium density aggregation can also be generated, and a slot pressing event can be caused in serious conditions, so that the separation fails and accidents occur on a gangue discharge part.
SUMMERY OF THE UTILITY MODEL
The utility model provides a shallow slot dense medium sorter, greatly reduced the mismatch when selecting separately, the sorting precision is higher, reduces the clean coal loss, has solved the easy problem of blockking up of upflow system, prevents that the indent accident from taking place in the gathering of isopycnic intermediate product in the cell body.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the shallow slot heavy medium separator comprises a shallow slot body, a driving device arranged on the shallow slot body, a gangue discharge part which is arranged in the shallow slot body and driven by the driving device, an upflow medium slot arranged at the bottom of the shallow slot body, a water fluid medium slot arranged on the side surface of the shallow slot body and an overflow weir which is arranged on the shallow slot body and used for discharging light products.
Preferably, the top of the upflow pressure bin is communicated with the shallow groove body, the bottom of the upflow pressure bin is communicated with the upflow medium groove, and the volume of the upflow pressure bin is 1/5 ~ 1/4 of the volume of the shallow groove body.
Preferably, the upflow pressure bin is cuboid or conical, the top of the upflow pressure bin is in sealing fit with the bottom of the shallow groove body, the upflow pressure bin is communicated with the shallow groove body through a medium distribution plate, and the medium distribution plate is uniformly provided with a plurality of upflow medium holes.
Preferably, the bottom of the upflow pressure bin is connected with a plurality of upflow medium grooves which are uniformly distributed at intervals.
Preferably, the shallow slot body is also provided with a discharge device, and the discharge device is positioned at the bottom of the shallow slot body.
Preferably, the discharge device is arranged at a position higher than the upflow medium groove and lower than a gangue discharge port of the gangue discharge part.
Preferably, the discharging device comprises a discharging chute and a valve for controlling the opening and closing of the discharging chute.
The utility model has the advantages that:
1. an upflow pressure bin for stabilizing the flow velocity of the dense medium suspension is arranged between the upflow medium tank and the shallow tank body, the dense medium suspension fed from the upflow medium tank forms fluid with certain pressure in the upflow pressure bin and then enters the shallow tank body, and the flow velocity of the dense medium suspension is stabilized through the upflow pressure bin, so that the flow field of the suspension in the shallow tank body is more stable, eddies are not easy to form in a separation region, mismatched substances during separation are greatly reduced, the separation precision is improved, and the loss of clean coal is reduced.
2. The suspension flow field in the shallow groove body is more stable due to the arrangement of the upflow pressure bin, so that the horizontal medium flow can be stopped firstly in the shutdown process of the shallow groove dense medium separator, the intermediate product is discharged by the discharging device, the coal floating effectively ascends along with the upflow medium flow, and the upflow medium flow is stopped after the material is emptied, so that the problem that an upflow system is easy to block is solved.
3. The discharging device is used for timely discharging coal deposited in the shallow groove body and used as a down-flow device in the shallow groove dense medium separator, so that the density of suspension is more stable, an up-flow system is further effectively prevented from being blocked, and the groove pressing accident caused by the aggregation of equal-density intermediate products in the groove body is prevented.
4. The discharge device can also be used as an emergency discharge device in the event of a separator failure.
Drawings
Fig. 1 is a main view of the shallow slot dense medium separator of the present invention.
Fig. 2 is a side view of the shallow slot dense medium separator of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 1.
Fig. 4 is a sectional view taken along line B-B of fig. 1.
Detailed Description
The following describes embodiments of the present invention in detail with reference to fig. 1 to 4.
The shallow slot heavy medium separator comprises a shallow slot body 1, a driving device 2 arranged on the shallow slot body 1, a gangue discharge part 3 which is arranged in the shallow slot body 1 and driven by the driving device 2, an upflow medium slot 4 arranged at the bottom of the shallow slot body 1, a water fluid medium slot 5 arranged on the side surface of the shallow slot body 1 and an overflow weir 10 which is arranged on the shallow slot body 1 and used for discharging light products, and is characterized in that an upflow pressure bin 6 used for stabilizing the flow velocity of heavy medium suspension liquid is arranged between the upflow medium slot 4 and the shallow slot body 1, and the heavy medium suspension liquid is fed from the upflow medium slot 4 and enters the shallow slot body 1 after being stabilized by the upflow pressure bin 6.
As shown in the figure, the shallow slot heavy medium separator drives a waste rock discharge part 3 to move in a shallow slot groove body 1 through a driving device 2, heavy medium suspension liquid is respectively fed into the shallow slot groove body 1 through a horizontal flow medium groove 5 and an ascending flow medium groove 4, suspension liquid fed into the ascending flow medium groove forms fluid with certain pressure in an ascending flow pressure bin, then the fluid is uniformly fed into the shallow slot groove body 1, after the density of the heavy medium suspension liquid in the shallow slot groove body 1 is stable, sorted materials are fed, heavy products sink into the bottom of the groove body and are lifted to a waste rock discharge port by the waste rock discharge part 3 to be discharged, and light products are discharged through an overflow weir 10. An up-flow pressure bin 6 used for stabilizing the flow velocity of the suspension of the heavy medium is arranged between the up-flow medium tank 4 and the shallow tank body 1, the up-flow pressure bin 6 stabilizes the flow of the suspension in the shallow tank body, so that the flow field of the suspension in the shallow tank body is more stable, a vortex is not easily formed in a separation area, mismatched substances during separation are greatly reduced, the separation precision is improved, and the loss of clean coal is reduced. In the shutdown process of the shallow slot heavy medium separator, the horizontal medium flow can be stopped firstly, the intermediate product is discharged by the discharging device, the coal floats and effectively rises along with the ascending medium flow, and the ascending medium flow is stopped after the material is emptied, so that the problem that an ascending flow system is easy to block is solved.
The top of the upflow pressure bin 6 is communicated with the shallow groove tank body 1, the bottom of the upflow pressure bin is communicated with the upflow medium groove 4, and the volume of the upflow pressure bin 6 is 1/5 ~ 1/4 of the volume of the shallow groove tank body 1, so that the heavy medium suspension liquid is effectively accumulated in the upflow pressure bin 6 at a constant speed.
The upflow pressure bin 6 is cuboid or conical, the top of the upflow pressure bin is in sealing fit connection with the bottom of the shallow groove body 1, the upflow pressure bin 6 is communicated with the shallow groove body 1 through the medium distribution plate 7, and the medium distribution plate 7 is uniformly provided with a plurality of upflow medium holes 11. The upflow medium holes 11 ensure that the fluid in the upflow pressure bin 6 is uniformly fed into the shallow slot body 1.
The bottom of the upflow pressure bin 6 is connected with a plurality of upflow medium grooves 4 which are uniformly distributed at intervals, so that the feeding amount is ensured.
Wherein, the shallow slot body 1 is also provided with a discharge device 8, and the discharge device 8 is positioned at the bottom of the shallow slot body 1. The discharging device 8 is used for timely discharging coal deposited in the shallow groove body and used as a down-flow device in the shallow groove dense medium separator, so that the density of suspension is more stable, an up-flow system is further effectively prevented from being blocked, and the groove pressing accident caused by the aggregation of equal-density intermediate products in the groove body is prevented. The discharge device can also be used as an emergency discharge device in the event of a separator failure.
The discharge device 8 is arranged at a position higher than the upflow medium trough 4 and lower than a waste discharge port 9 of the waste discharge part 3, so that discharge is facilitated.
The discharging device 8 comprises a discharging chute 12 and a valve 13 for controlling the opening and closing of the discharging chute 12, wherein the valve 13 can be controlled manually or electrically.
The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Claims (7)
1. The shallow slot heavy medium separator comprises a shallow slot body (1), a driving device (2) arranged on the shallow slot body (1), a gangue discharge part (3) arranged in the shallow slot body (1) and driven by the driving device (2), an ascending flow medium groove (4) arranged at the bottom of the shallow slot body (1), a water fluid medium groove (5) arranged on the side surface of the shallow slot body (1) and an overflow weir (10) arranged on the shallow slot body (1) and used for discharging light products, and is characterized in that an ascending flow pressure bin (6) used for stabilizing the flow velocity of heavy medium suspension is arranged between the ascending flow medium groove (4) and the shallow slot body (1), and the heavy medium suspension enters from the ascending flow medium groove (4) and enters the shallow slot body (1) after being stabilized by the ascending flow pressure bin (6).
2. The shallow slot heavy medium separator as claimed in claim 1, wherein the top of the upflow pressure bin (6) is communicated with the shallow slot body (1), the bottom is communicated with the upflow medium slot (4), and the volume of the upflow pressure bin (6) is 1/5 ~ 1/4 of the volume of the shallow slot body (1).
3. The shallow slot heavy medium separator as claimed in claim 2, wherein the upflow pressure bin (6) is cuboid or conical, the top of the upflow pressure bin is hermetically matched and connected with the bottom of the shallow slot body (1), the upflow pressure bin (6) is communicated with the shallow slot body (1) through a medium distribution plate (7), and a plurality of upflow medium holes (11) are uniformly formed in the medium distribution plate (7).
4. The shallow slot heavy medium separator according to claim 3, characterized in that the bottom of the upflow pressure bin (6) is connected with a plurality of upflow medium slots (4) which are evenly distributed at intervals.
5. The shallow slot heavy medium separator as claimed in claim 1, wherein the shallow slot body (1) is further provided with a discharging device (8), and the discharging device (8) is positioned at the bottom of the shallow slot body (1).
6. The shallow slot dense medium separator as claimed in claim 5, characterized in that the discharge device (8) is installed at a position higher than the upflow medium trough (4) and lower than the discharge opening (9) of the discharge portion (3).
7. The shallow slot dense medium separator as claimed in claim 5, wherein the discharge device (8) comprises a discharge chute (12) and a valve (13) for controlling the opening and closing of the discharge chute (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288171.7U CN209810412U (en) | 2019-03-07 | 2019-03-07 | Shallow slot heavy medium separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288171.7U CN209810412U (en) | 2019-03-07 | 2019-03-07 | Shallow slot heavy medium separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209810412U true CN209810412U (en) | 2019-12-20 |
Family
ID=68874619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920288171.7U Active CN209810412U (en) | 2019-03-07 | 2019-03-07 | Shallow slot heavy medium separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209810412U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676028A (en) * | 2020-11-12 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Mineral separation process for separating manganese ore lump ore by using dense medium shallow grooves |
| CN112774851A (en) * | 2020-12-23 | 2021-05-11 | 中煤科工集团唐山研究院有限公司 | Shallow slot separator experiment table and experiment method |
| CN112934454A (en) * | 2021-01-21 | 2021-06-11 | 国家能源集团国源电力有限公司 | Shallow slot sorting machine |
| CN113908970A (en) * | 2021-09-26 | 2022-01-11 | 中国矿业大学 | Heavy-medium shallow-slot intelligent heavy-medium density adjusting system based on machine vision |
-
2019
- 2019-03-07 CN CN201920288171.7U patent/CN209810412U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676028A (en) * | 2020-11-12 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Mineral separation process for separating manganese ore lump ore by using dense medium shallow grooves |
| CN112676028B (en) * | 2020-11-12 | 2022-12-02 | 中冶长天国际工程有限责任公司 | Mineral separation process for separating manganese ore lump ore by using dense medium shallow grooves |
| CN112774851A (en) * | 2020-12-23 | 2021-05-11 | 中煤科工集团唐山研究院有限公司 | Shallow slot separator experiment table and experiment method |
| CN112934454A (en) * | 2021-01-21 | 2021-06-11 | 国家能源集团国源电力有限公司 | Shallow slot sorting machine |
| CN112934454B (en) * | 2021-01-21 | 2022-08-02 | 国家能源集团国源电力有限公司 | Shallow slot sorting machine |
| CN113908970A (en) * | 2021-09-26 | 2022-01-11 | 中国矿业大学 | Heavy-medium shallow-slot intelligent heavy-medium density adjusting system based on machine vision |
| CN113908970B (en) * | 2021-09-26 | 2024-04-26 | 中国矿业大学 | System for dense medium shallow slot intelligent regulation dense medium density based on machine vision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209810412U (en) | Shallow slot heavy medium separator | |
| CN104226458B (en) | Three product shallow slot heavy-media separators | |
| CN201676741U (en) | Desliming type liquid-solid fluidized bed coarse slime sorting and grading device | |
| CN101850293A (en) | Coarse coal slime sorting and grading plant for desliming type liquid-solid fluid bed | |
| CN201692871U (en) | Fine mineral hindered settling classifier | |
| CN109604042B (en) | Wide-size-fraction pulsating shallow-groove heavy-medium separator | |
| CN106334627A (en) | Flotation column and method for separating ore pulp through same | |
| CN101628256A (en) | Hindered bed separator | |
| CN206008970U (en) | A kind of Separator of heavy medium shallow slot upper up-flow anti-block apparatus | |
| CN101712012A (en) | High-efficiency dense-medium shallow-tank separator | |
| CN101844104A (en) | Hydraulic classifier | |
| US1966609A (en) | Method and apparatus for separating materials of differing specific gravities | |
| CN104307623B (en) | System and method for adjusting horizontal flow in heavy-medium shallow tank | |
| CN201026407Y (en) | Taper cone type sloping plate subsider | |
| WO2020186591A1 (en) | Pulsating-type heavy medium shallow slot separating device and method | |
| CN105396702A (en) | Fine coal centrifugal separation equipment capable of discharging materials continuously | |
| CN106669953B (en) | Clay-removing type liquid-solid fluidized bed coarse slime separation overflow clean coal grading device | |
| CN205379970U (en) | Horizontal medium of large -scale heavy jie shallow slot sorting machine flows equipartition device | |
| CN211275003U (en) | Heavy-medium shallow-groove separator for re-separating washed gangue | |
| CN201552054U (en) | Highly effective heavy media shallow slot sorting machine | |
| CN209718363U (en) | A kind of waste plastics floatation system | |
| KR100695917B1 (en) | Method and appatatus for classified impurity of sand | |
| CN1023688C (en) | Heavy medium separator exhausting waste rock from bottom | |
| CN212663861U (en) | Dry discharge system is united to tailing | |
| CN215030057U (en) | Multi-layer and multi-stage separation tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |