CN203540734U - Recovery device of refractory coal slime with high ash content - Google Patents
Recovery device of refractory coal slime with high ash content Download PDFInfo
- Publication number
- CN203540734U CN203540734U CN201320695982.1U CN201320695982U CN203540734U CN 203540734 U CN203540734 U CN 203540734U CN 201320695982 U CN201320695982 U CN 201320695982U CN 203540734 U CN203540734 U CN 203540734U
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- Prior art keywords
- high frequency
- coal slime
- ash content
- shale shaker
- graded
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- 239000003245 coal Substances 0.000 title claims abstract description 35
- 238000011084 recovery Methods 0.000 title abstract description 9
- 238000000926 separation method Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 4
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 5
- 230000018044 dehydration Effects 0.000 abstract description 3
- 238000006297 dehydration reaction Methods 0.000 abstract description 3
- 238000005188 flotation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model relates to a coal slime recovery process, and particularly relates to a recovery device of refractory coal slime with high ash content. The recovery device of refractory coal slime with high ash content comprises a graded hydrocyclone, a high frequency vibrating screen and a concentration basin, wherein a second-stage overflow port of the graded hydrocyclone is communicated with an aqueduct of the high frequency vibrating screen through a pipeline, and a first-stage overflow port of the graded hydrocyclone and an undersize product outlet of the high frequency vibrating screen are respectively communicated with the concentration basin through pipelines. According to the device provided by the utility model, tailings are graded and sorted by adopting the two-stage hydrocyclone, and then graded coarser and lighter coal slime particles are screened by the high frequency vibrating screen to be subjected to ash reduction and dehydration, so that the input is low, the efficiency is high and the process is simple. By using the system to treat coal slime, the ash content of tailings is reduced to be below 10%, and the coal slime can be recovered again by 80%, so that the recovery device has good economical and social benefits.
Description
Technical field
The utility model relates to a kind of coal slime recovery process, particularly a kind of retracting device of high grey difficult separation coal mud.
Background technology
At present, the sorting of mine tailing and coal slime is generally flotation or thickening pond reclaims, for reducing ash content, do not have effective method more, in coal preparation industry, granularity between 0.3 ~ 3mm, the Bed for Fine Coal that is difficult to be undertaken by method for floating sorting is called coarse slime, in modern coal separation process, the amount of this part coal slime greatly increases, in colliery, the difficult separation coal mud particle below particle 3mm, ash content reaches 20% ~ 50%, generally as electric coal (low price), process, and ash content is less than 10% and can enters steel mill as cleaned coal.But ash content reaches 20% ~ 50% difficult separation coal mud, still have value greatly.According to one's analysis, at present the colliery of the exploitation of coal industry before being far from the precision in colliery high, so just need highlyer, recovery that can be better is difficult to the technique of the mine tailing of recovery.
In the coal preparation plant of part, use hindered bed separator TBS, coal slime particle that can separated 1mm ~ 0.25mm, but price is high, and if its ash content be reduced in 10% when following, its productive rate is also extremely low, can only reach 13% left and right, maintenance is simultaneously inconvenience also.
Summary of the invention
The purpose of this utility model is to provide a kind of and does separation to greatest extent for high ash content coarse slime, and cost is low, the centrifugal classification recovery system of the high ash content coarse slime that economic benefit is high.
The technical solution of the utility model is:
A kind of retracting device of high grey difficult separation coal mud, comprise classifying cyclone, high frequency shale shaker and concentration basin, two sections of overfalls of classifying cyclone are by the aqueduct of pipeline communication high frequency shale shaker, and one section of overfall of classifying cyclone and the undersized product outlet of high frequency shale shaker are respectively by pipeline communication concentration basin.
Concrete, high frequency shale shaker adopts lamination high frequency shale shaker, and two sections of overfalls of classifying cyclone are by the distributor import of pipeline communication distributor, and export distributor is by the aqueduct of pipeline communication lamination high frequency shale shaker.
Concrete, one section of inlet of some classifying cyclones is communicated with same minute slurry device.
The course of work of the present utility model is: mine tailing coal slime is supported to ore pulp, by slag stock pump, be drawn in classifying cyclone, the inlet pressure of classifying cyclone requires between 0.12 ~ 0.16Mpa; Classifying cyclone carries out one section of overflow product of classification, partition size is 0.075 ~ 0.15mm, if the ash content of one section of overflow product carries out flotation coal separation 20% with the next concentration basin that enters, if one section of overflow product at ash content, more than 20%, directly carry out discharge refuse processing; Classified cyclone carries out two sections of concentrated overflow products of classification and enters high frequency shale shaker dehydration, high frequency shale shaker undersized product, and its granularity, below 0.25mm, directly enters concentration basin and carries out flotation; The upper product of high frequency shale shaker sieve is cleaned coal.
The beneficial effects of the utility model are: the utility model adopts second cyclone group to carry out classification and sorting to tail coal, thick lighter coal slime particle after classification, with the screening of high frequency shale shaker sieve, ash dehydration is fallen to again, drop into low, efficiency is high, technique is simple, use this system to process coal slime tail coal and ash content is being reduced to 10% when following, the coal slime that can again reclaim reaches 80% productive rate, has good economic benefit and social benefit.
Accompanying drawing explanation
fig. 1 is the structural representation of the utility model embodiment 1.
fig. 2 is the structural representation of embodiment 2 a cluster cyclones used.
The upper product of 8 two sections of underflow openings of 1 classifying cyclone 2 distributor 37 two sections of overfalls of 6 one sections of overfalls of 5 one sections of inlets of lamination high frequency shale shaker 4 concentration basin, 9 distributor import 10 export distributor 11 aqueduct 12 sieve exports 13 undersized products and exports 14 pipelines.
The specific embodiment
Embodiment 1:
A kind of retracting device of high grey difficult separation coal mud, comprise classifying cyclone 1, lamination high frequency shale shaker 3 and concentration basin 4, two sections of overfalls 7 of classifying cyclone 1 are communicated with the distributor import 9 of distributor 2 by pipeline 14, export distributor 10 is communicated with the aqueduct 11 of lamination high frequency shale shakers 3 by pipeline 14, one section of overfall 6 of classifying cyclone 1 and the undersized product outlet 13 of high frequency shale shaker are communicated with concentration basins 4 by pipeline 14 respectively.
Embodiment 2:
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (3)
1. the retracting device of a high grey difficult separation coal mud, it is characterized in that, comprise classifying cyclone, high frequency shale shaker and concentration basin, two sections of overfalls of classifying cyclone are by the aqueduct of pipeline communication high frequency shale shaker, and one section of overfall of classifying cyclone and the undersized product outlet of high frequency shale shaker are respectively by pipeline communication concentration basin.
2. a kind of retracting device of high grey difficult separation coal mud according to claim 1, it is characterized in that, high frequency shale shaker adopts lamination high frequency shale shaker, two sections of overfalls of classifying cyclone are by the distributor import of pipeline communication distributor, and export distributor is by the aqueduct of pipeline communication lamination high frequency shale shaker.
3. a kind of retracting device of high grey difficult separation coal mud according to claim 1, is characterized in that, one section of inlet of some classifying cyclones is communicated with same minute slurry device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695982.1U CN203540734U (en) | 2013-11-07 | 2013-11-07 | Recovery device of refractory coal slime with high ash content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695982.1U CN203540734U (en) | 2013-11-07 | 2013-11-07 | Recovery device of refractory coal slime with high ash content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203540734U true CN203540734U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320695982.1U Expired - Lifetime CN203540734U (en) | 2013-11-07 | 2013-11-07 | Recovery device of refractory coal slime with high ash content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203540734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148278A (en) * | 2014-08-08 | 2014-11-19 | 湖南兆晟矿山机械有限公司 | Layered high-frequency fine vibrating screen |
| CN113289774A (en) * | 2021-05-17 | 2021-08-24 | 陕西陕煤铜川矿业有限公司 | Coarse slime coal recovery and clean coal system and method |
-
2013
- 2013-11-07 CN CN201320695982.1U patent/CN203540734U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104148278A (en) * | 2014-08-08 | 2014-11-19 | 湖南兆晟矿山机械有限公司 | Layered high-frequency fine vibrating screen |
| CN113289774A (en) * | 2021-05-17 | 2021-08-24 | 陕西陕煤铜川矿业有限公司 | Coarse slime coal recovery and clean coal system and method |
| CN113289774B (en) * | 2021-05-17 | 2023-04-11 | 陕西陕煤铜川矿业有限公司 | Coarse slime coal recovery and clean coal system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |