CN211275003U - Heavy-medium shallow-groove separator for re-separating washed gangue - Google Patents
Heavy-medium shallow-groove separator for re-separating washed gangue Download PDFInfo
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- CN211275003U CN211275003U CN201921849392.3U CN201921849392U CN211275003U CN 211275003 U CN211275003 U CN 211275003U CN 201921849392 U CN201921849392 U CN 201921849392U CN 211275003 U CN211275003 U CN 211275003U
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Abstract
A heavy-medium shallow slot separator for re-separating washed waste rock belongs to the technical field of coal washing equipment, can solve the problems of low stability, low separation precision and large lower limit of feeding of the existing separation equipment, comprises a shallow groove box body, the top of shallow slot box is equipped with aircraft nose sprocket and tail sprocket respectively, the bottom is equipped with scrapes the chain slide, aircraft nose sprocket and tail sprocket pass through to scrape the chain connection, it passes scrapes the chain slide to scrape the chain, one side lateral wall of shallow slot box is equipped with the pan feeding mouth, the opposite side lateral wall is equipped with floats the thing bin outlet, aircraft nose sprocket bottom is equipped with heavy thing bin outlet, bottom one side of shallow slot box is equipped with the medium back flow, the bottom both sides of shallow slot box are equipped with the inclined medium pan feeding pipe respectively, the outside of shallow slot box is equipped with the pan feeding pipe that is used for horizontal medium pan feeding, the pan feeding pipe, the tip intercommunication of medium pan feeding. The utility model discloses change the mode of medium pan feeding, change both sides pan feeding into by the bottom pan feeding, solved the stable problem of medium flow.
Description
Technical Field
The utility model belongs to the technical field of coal washing equipment, concretely relates to heavy-duty medium shallow slot sorting machine for washing last waste rock and sorting again.
Background
At present, in a pulverized coal production system (the particle size of fed materials is 1.5-13 mm) in the coal washing and selecting industry, two-product dense medium cyclone is mostly adopted for separation, the ash content of tailings is about 65 percent generally, the coal content is about 25 percent, and the method has high recovery value.
The separation equipment with higher separation precision in the coal washing and selecting industry is a dense medium cyclone and a dense medium shallow slot, and if the dense medium cyclone is adopted to perform re-separation on the tailings, the separation equipment has the following defects:
(1) the dense medium cyclone has pressure feeding and low system stability.
(2) The heavy medium cyclone has low separation precision and the recovery rate cannot reach the expected target.
The heavy medium shallow groove sorting machine is adopted, the sorting with the feed granularity larger than or equal to 13mm is mature in the prior art, the sorting precision is high, a few users extend the lower limit of the feed of the shallow groove to 8mm, and the lower limit of the feed reaches 1.5 mm.
According to the traditional heavy-medium shallow slot, media are mainly fed from the bottom, holes are formed in the bottom plate of the shallow slot, the bottom plate is easy to wear and change frequently, and if the shallow slot is used for sorting fine-grained materials, the holes of the bottom plate are large in size, gangue easily enters a medium circulation system, the holes of the bottom plate are small in size, the medium flow is insufficient, and the holes are easily blocked.
Disclosure of Invention
The utility model discloses to current sorting equipment stability is not high, selects separately the problem that the precision is not high and the pan feeding lower limit is big, provides a heavy-duty shallow slot sorter for washing last waste rock and select separately again.
The utility model adopts the following technical scheme:
the utility model provides a heavy meson shallow slot separator for wash last waste rock is selected separately again, including the shallow slot box, the top of shallow slot box is equipped with aircraft nose sprocket and tail sprocket respectively, the bottom is equipped with scrapes the chain slide, aircraft nose sprocket and tail sprocket pass through and scrape the chain connection, it passes and scrapes the chain slide to scrape the chain, one side lateral wall of shallow slot box is equipped with the pan feeding mouth, the opposite side lateral wall is equipped with the flotage bin outlet, aircraft nose sprocket bottom is equipped with the sediment bin outlet, bottom one side of shallow slot box is equipped with the medium back flow, the bottom both sides of shallow slot box are equipped with the inclined medium pan feeding pipe respectively, the outside of shallow slot box is equipped with the pan feeding pipe that is used for horizontal medium pan feeding, the pan feeding pipe.
And a valve for adjusting the flow is arranged on the feeding pipe.
And a valve for adjusting the flow is arranged on the medium feeding pipe.
And a valve for adjusting the flow is arranged on the medium return pipe.
The utility model has the advantages as follows:
1. the utility model discloses change the mode of medium pan feeding, change both sides pan feeding into by the bottom pan feeding, solved the stable problem of medium flow.
2. The utility model discloses a shallow slot box's bottom plate is whole bottom plate, need not trompil, has solved bottom plate wearing and tearing, plugged hole, waste rock piece entering circulation system's problem, has guaranteed the stability of system.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
wherein: 1-shallow groove box body; 2-a head sprocket; 3-a tail chain wheel; 4-scraper chain slide; 5-scraper chain; 6-a feeding port; 7-a float discharge outlet; 8-a sediment discharge port; 9-medium return pipe; 10-a medium feeding pipe; 11-feeding pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the figure, a heavy-duty shallow slot sorting machine for separating waste rock again, including shallow slot box 1, shallow slot box 1's top is equipped with aircraft nose sprocket 2 and tail sprocket 3 respectively, the bottom is equipped with scrapes chain slide 4, aircraft nose sprocket 2 and tail sprocket 3 pass through scraper chain 5 and connect, it passes scraper chain slide 4 to scrape chain 5, one side lateral wall of shallow slot box 1 is equipped with pan feeding mouth 6, the opposite side lateral wall is equipped with floats bin outlet 7, aircraft nose sprocket 2 bottom is equipped with heavy material bin outlet 8, bottom one side of shallow slot box 1 is equipped with medium back flow 9, shallow slot box 1's bottom both sides are equipped with inclined medium pan feeding pipe 10 respectively, shallow slot box 1's the outside is equipped with pan feeding pipe 11 that is used for horizontal medium pan feeding, pan feeding pipe 11, medium pan feeding pipe 10 and medium back flow 9's tip intercommunication.
And a valve for adjusting the flow is arranged on the feeding pipe 11.
And a valve for adjusting the flow is arranged on the medium feeding pipe 10.
And a valve for adjusting the flow is arranged on the medium return pipe 9.
The utility model changes the bottom feeding mode of the medium flow of the traditional shallow groove separator into the two-side feeding mode, the medium enters from two sides, and the stable ascending medium flow can be formed in the shallow groove by adjusting the flow of the pipelines at two sides; through adjusting the horizontal medium flow, the overflow thickness and the speed of the shallow groove are controlled, the medium flow stability of the separation area is kept, the separation precision is ensured, and the expected separation effect is achieved.
The utility model discloses mainly be applicable to wash the reselection of last waste rock (less than or equal to 13 mm).
(1) The washed gangue is separated by a dense medium cyclone and then dehydrated by medium removal, the material is fully wetted, the pulverized coal with the granularity less than or equal to 1.5mm is removed, the material is in a loose shape, and after entering a dense medium shallow groove, the phenomena of uneven mixing, non-sinking and the like of the bulk material and the medium can not occur, thereby being beneficial to material separation.
(2) The coal content in the tailings is greatly reduced after the washed gangue is separated by the dense medium cyclone, the floating amount is relatively less after the gangue enters the dense medium shallow slot, and the separation precision cannot be influenced by the excessively thick floating layer.
The dense medium shallow groove of the utility model separates the washed gangue again, the refined coal ash is divided into about 25 percent, is close to the standard fine coal quality index, and is directly sold as the standard fine coal; the ash content of the gangue is about 80 percent and is discharged; the recovery rate reaches about 25 percent.
Claims (4)
1. The utility model provides a heavy-medium shallow slot sorting machine for washing last waste rock is selected separately again which characterized in that: comprises a shallow slot box body (1), the top end of the shallow slot box body (1) is respectively provided with a machine head chain wheel (2) and a machine tail chain wheel (3), the bottom end is provided with a scraper chain slideway (4), the machine head chain wheel (2) and the machine tail chain wheel (3) are connected through a scraper chain (5), the scraper chain (5) passes through the scraper chain slideway (4), one side wall of the shallow slot box body (1) is provided with a feeding hole (6), the other side wall is provided with a floating material discharging hole (7), the bottom of the machine head chain wheel (2) is provided with a sinking material discharging hole (8), one side of the bottom of the shallow slot box body (1) is provided with a medium return pipe (9), two sides of the bottom of the shallow slot box body (1) are respectively provided with an oblique medium feeding pipe (10), the outer side of the shallow slot box body, the medium feeding pipe (10) is communicated with the end part of the medium return pipe (9).
2. The heavy-medium shallow slot separator for recleaning of tailings as claimed in claim 1, wherein: and a valve for adjusting the flow is arranged on the feeding pipe (11).
3. The heavy-medium shallow slot separator for recleaning of tailings as claimed in claim 1, wherein: and a valve for adjusting the flow is arranged on the medium feeding pipe (10).
4. The heavy-medium shallow slot separator for recleaning of tailings as claimed in claim 1, wherein: and a valve for adjusting the flow is arranged on the medium return pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849392.3U CN211275003U (en) | 2019-10-31 | 2019-10-31 | Heavy-medium shallow-groove separator for re-separating washed gangue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849392.3U CN211275003U (en) | 2019-10-31 | 2019-10-31 | Heavy-medium shallow-groove separator for re-separating washed gangue |
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| Publication Number | Publication Date |
|---|---|
| CN211275003U true CN211275003U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921849392.3U Active CN211275003U (en) | 2019-10-31 | 2019-10-31 | Heavy-medium shallow-groove separator for re-separating washed gangue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2019
- 2019-10-31 CN CN201921849392.3U patent/CN211275003U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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