CN207605861U - A kind of fine coal slurry desliming drop apparatus for ash - Google Patents
A kind of fine coal slurry desliming drop apparatus for ash Download PDFInfo
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- CN207605861U CN207605861U CN201721344787.9U CN201721344787U CN207605861U CN 207605861 U CN207605861 U CN 207605861U CN 201721344787 U CN201721344787 U CN 201721344787U CN 207605861 U CN207605861 U CN 207605861U
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- fine coal
- coal slurry
- cyclone
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- 239000003250 coal slurry Substances 0.000 title claims abstract description 63
- 239000003245 coal Substances 0.000 claims abstract description 31
- 238000004062 sedimentation Methods 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 2
- 238000010410 dusting Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract 1
- 235000019580 granularity Nutrition 0.000 description 10
- 239000010866 blackwater Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010334 sieve classification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model is related to a kind of fine coal slurry deslimings to drop apparatus for ash, belong to Coal Washing Techniques field, multi-level hierarchical cyclone of the device coal slime to be treated through leading portion selects 0.5mm fine coal slurries, it is sent into level-one multi-stage PCE cyclone and carries out multi-stage PCE, the fine coal slurry of overflow granularity 0.15mm is re-fed into two level multi-stage PCE cyclone and carries out multi-stage PCE after concentration, the fine coal slurry of underflow granularity 0.045mm is sent into fine coal slurry bucket after concentration, duff mud in fine coal slurry bucket is pumped into stack high-frequency vibration undersize sieve by slurry, its screen slot is 0.075mm, stack high-frequency vibration undersize sieve sieve above and under sieve is connect by conveying device with screen-bowl sedimentation centrifuge and concentration basin respectively；Advantageous effect：Accurate Classification can be reached using the device, realize drop ash；Increasing two level classification makes material concentration meet the requirements；Treated, and coal slime ash content is down to 18.63%；Less with equipment, investment is smaller, the features such as floor space is smaller.
Description
Technical field
The utility model is related to a kind of fine coal slurry deslimings to drop apparatus for ash, belong to Coal Washing Techniques field.
Background technology
The processing of black water and drying slime are comparison the key links in Coal Washing Techniques.With coal-cutting machinery
The raising of change degree, contained coal amount is increasing in raw coal, and coal also generates a certain amount of secondary slime in washing process.
So the reasonable recycling of coal slime can bring considerable economic benefit to enterprise.
Coal slime is divided into coarse slime (slime size 3-0.5mm) and fine coal slurry (coal slime caused by during coal washing
Granularity is less than 0.5mm).It is past, main to the processing of fine coal slurry to be carried out by the way of backfill, waste a large amount of coal money
Source；Currently, due to non-renewable, the coal used in down-stream enterprise of the environmental protection administration to mining listed corporations of coal resources
The requirement of standard improves, especially the raising to contained ash content standard requirement in coal and mining listed corporations self-growth
Demand, therefore seem extremely important to the washing of fine coal slurry.
In coal production, the characteristics of according to fine coal slurry, frequently with classifying cyclone+vibration sieve bend+coal slime centrifuge
Fine coal slurry desliming drop ash is carried out, there are classifying cyclone underflow densities during fine coal slurry desliming drop ash in this way
It is low, the requirement of vibration sieve bend feed thickness cannot be met, cause oversize moisture higher, cause coal slime after centrifuge dewatering
The moisture the problem of requirement of transport and storage is not achieved.
Invention content
The purpose of the utility model is to overcome shortcomings in the prior art, provide a kind of fine coal slurry desliming drop ash dress
It sets, which not only increases black water feed thickness, and the ash content index through the device treated fine coal slurry meets coal
The requirement of down-stream enterprise of charcoal manufacturing enterprise improves the utilization rate of fine coal slurry.
In order to realize the purpose of this utility model, we will adopt the following technical scheme that and be implemented.
A kind of fine coal slurry desliming drop apparatus for ash, it is characterised in that：Including：Level-one multi-stage PCE cyclone, two level classification are dense
Contracting cyclone, fine coal slurry bucket, Pulp pump, stack high-frequency vibration undersize sieve, conveying device, screen-bowl sedimentation centrifuge and concentration basin, institute
The level-one multi-stage PCE cyclone stated is connected to the slime separation device of leading portion, and the spill box of the level-one classifying cyclone is logical
Piping is connected to the feed box of two level multi-stage PCE cyclone, and the underflow of two level multi-stage PCE cyclone passes through pipeline and duff
The feeding mouth of mud bucket is connected to, and the discharge port of fine coal slurry bucket is connected by pipeline through the feed box of Pulp pump and stack high-frequency vibration undersize sieve
Logical, stack high-frequency vibration undersize sieve sieve above and under sieve is connect by conveying device with screen-bowl sedimentation centrifuge and concentration basin respectively.
Further, the feed box of the spill box and two level multi-stage PCE cyclone of the level-one multi-stage PCE cyclone
Difference in height is 11-15m.
Further, the preferred 12-13m of the difference in height.
Further, the screen-bowl sedimentation centrifuge is connected to by pipeline with concentration basin.
Further, the granularity of the level-one multi-stage PCE cyclone overflow fine coal slurry is less than 0.15mm, fine coal slurry mud
A concentration of 45-55g/l.
Further, the granularity of the two level multi-stage PCE cyclone underflow fine coal slurry is less than 0.045mm, underflow fine coal slurry
In be less than 0.045mm particle size fractions coal particle content be about 48%, in underflow fine coal slurry be less than 0.098mm particle size fractions coal particle
Content is about 62.5%；A concentration of 150-250g/l of underflow fine coal slurry mud；The flow of underflow fine coal slurry mud is 125-
175m3/h；Practical dry mine amount is 22.5-30t/h.
Further, the screen slot of the stack high-frequency vibration undersize sieve is chosen to be 0.075mm.
Further, the two level multi-stage PCE cyclone is at least arranged one.
Further, the stack high-frequency vibration undersize sieve is at least arranged one.
Advantageous effect
1, it according to the granularmetric composition situation of material, is combined using multi-stage PCE cyclone+stack high-frequency vibration undersize sieve
Classification reaches Accurate Classification purpose, realizes drop ash effect；
2, material is obtained by the overflow from level-one multi-stage PCE cyclone, itself concentration is only 50g/L, if directly used
Stack high-frequency vibration undersize sieve is classified, then is influenced by material concentration, and classification efficiency is relatively low, at the same need the quantity of equipment compared with
More, investment is larger, therefore increases two level multi-stage PCE cyclone before stack high-frequency vibration undersize sieve, be classified and concentrate in advance
Effect, makes material concentration reach 200g/L or so.
3, after stack high-frequency vibration undersize sieve desliming effect, the content of -0.098mm particle size fractions is down to by 78.25%
25.86%, the ash content of coal slime can be down to 18.63% by 33.85%.
4, the combination, which has, needs the quantity of equipment relatively fewer, and investment is relatively small, and floor space is relatively small to wait spies
Point.
Description of the drawings
Fig. 1 is the structural schematic diagram of device of the present invention；
Fig. 2 is the flow chart of the method for the invention.
Specific implementation mode
In conjunction with the accompanying drawings and embodiments, the present invention is described further.
As shown in Figure 1, a kind of structure of fine coal slurry desliming drop apparatus for ash is as described below：The level-one multi-stage PCE eddy flow
Device 1 is connected to the slime separation device of leading portion, and the spill box of the level-one classifying cyclone 1 is dense by pipeline and two level classification
The feed box of contracting cyclone 2 is connected to, and the underflow of two level multi-stage PCE cyclone 2 is connected by the feeding mouth of pipeline and fine coal slurry bucket 3
Logical, the discharge port of fine coal slurry bucket 3 is connected to through Pulp pump 4 with the feed box of stack high-frequency vibration undersize sieve 5 by pipeline, lamination high frequency
It is connect respectively with screen-bowl sedimentation centrifuge 6 and concentration basin 7 by conveying device on the sieve of vibrating fine screen 5 and under sieve.
Embodiment 1
As shown in Figure 1, the spill box of level-one multi-stage PCE cyclone 1 and entering for two level multi-stage PCE cyclone 2
The difference in height of hopper is 13m, ensure that 2 normal operation of two level multi-stage PCE cyclone.
Embodiment 2
As shown in Figure 1, the screen-bowl sedimentation centrifuge 6 is connected to by pipeline with concentration basin 7, the mud after conveying separation
It is stored into concentration basin 7, waits for handling in next step.
As depicted in figs. 1 and 2, a kind of method of fine coal slurry desliming drop ash, includes the following steps：
One, multi-level hierarchical cyclone of the coal slime through leading portion selects the fine coal slurry that granularity is less than 0.5mm；
Two, fine coal slurry of the granularity less than 0.5mm is after the processing of level-one multi-stage PCE cyclone 1, level-one multi-stage PCE eddy flow
Fine coal slurry of 1 overflow granularity of device less than 0.15mm enters two level multi-stage PCE cyclone 2 and is classified, two level multi-stage PCE eddy flow
Fine coal slurry of the 2 underflow granularity of device less than 0.045mm enters fine coal slurry bucket 3, and 2 overflow fine coal slurry of two level multi-stage PCE cyclone is sent into
Concentration basin 8；
Three, duff mud is classified through the feeding stack high-frequency vibration undersize sieve 5 of Pulp pump 4 in fine coal slurry bucket 3, lamination high frequency
The screen slot of vibrating fine screen 5 is chosen to be 0.075mm, and the oversize of stack high-frequency vibration undersize sieve 5 is sent into screen-bowl sedimentation centrifuge 6, is folded
The screenings of layer high frequency vibrating fine screen 5 is sent into concentration basin 7；
Four, the oversize for being sent into sedimentation centrifuge 6 isolates smalls and mud after solid-liquid separation treatment, and smalls is
Products obtained therefrom, mud are sent into concentration basin 7.
Embodiment 3
As depicted in figs. 1 and 2, the granularity of the 1 overflow fine coal slurry of level-one multi-stage PCE cyclone is less than 0.15mm, carefully
A concentration of 50g/l of coal slime mud.
Embodiment 4
As depicted in figs. 1 and 2, the granularity of the 2 underflow fine coal slurry of two level multi-stage PCE cyclone is less than 0.045mm,
Coal particle content in underflow fine coal slurry less than 0.045mm particle size fractions is about 48%, and 0.098mm granularities are less than in underflow fine coal slurry
The coal particle content of grade is about 62.5%；A concentration of 150-250g/l of underflow fine coal slurry mud；The stream of underflow fine coal slurry mud
Amount is 125-175m3/h；Practical dry mine amount is 22.5-30t/h.
Embodiment 5
As depicted in figs. 1 and 2, the screen slot of the stack high-frequency vibration undersize sieve 5 is chosen to be 0.075mm.
Embodiment 6
According to Fig. 1, the two level multi-stage PCE cyclone 2 is set as Er Shitai.
Embodiment 7
As shown in Figure 1, the stack high-frequency vibration undersize sieve 5 is arranged two.
Embodiment 8
The last pit ash is down to 17.5-18.5%；In smalls about less than the coal particle content of 0.098mm particle size fractions
For 24-26%.
Claims (9)
1. apparatus for ash drops in a kind of fine coal slurry desliming, it is characterised in that：Including：Level-one multi-stage PCE cyclone, two level multi-stage PCE
Cyclone, fine coal slurry bucket, Pulp pump, stack high-frequency vibration undersize sieve, conveying device, screen-bowl sedimentation centrifuge and concentration basin, it is described
Level-one multi-stage PCE cyclone be connected to the slime separation device of leading portion, the spill box of the level-one multi-stage PCE cyclone
Be connected to the feed box of two level multi-stage PCE cyclone by pipeline, the underflow of two level multi-stage PCE cyclone by pipeline with it is thin
The feeding mouth of coal slime bucket is connected to, and the discharge port of fine coal slurry bucket passes through feed box of the pipeline through Pulp pump and stack high-frequency vibration undersize sieve
Connection, stack high-frequency vibration undersize sieve sieve above and under sieve are connect by conveying device with screen-bowl sedimentation centrifuge and concentration basin respectively.
2. apparatus for ash drops in fine coal slurry desliming according to claim 1, it is characterised in that：The level-one multi-stage PCE eddy flow
The difference in height of the spill box of device and the feed box of two level multi-stage PCE cyclone is 11-15m.
3. apparatus for ash drops in fine coal slurry desliming according to claim 2, it is characterised in that：The preferred 12- of the difference in height
13m。
4. apparatus for ash drops in fine coal slurry desliming according to claim 1, it is characterised in that：The screen-bowl sedimentation centrifuge is logical
Piping is connected to concentration basin.
5. apparatus for ash drops in a kind of fine coal slurry desliming according to claim 1, it is characterised in that：The level-one multi-stage PCE
The granularity of cyclone overflow fine coal slurry is less than 0.15mm, a concentration of 45-55g/l of fine coal slurry mud.
6. apparatus for ash drops in a kind of fine coal slurry desliming according to claim 1, it is characterised in that：The two level multi-stage PCE
The granularity of cyclone underflow fine coal slurry is less than 0.045mm, and the coal particle content ≈ of 0.045mm particle size fractions is less than in underflow fine coal slurry
48%, the coal particle content ≈ 62.5% of 0.098mm particle size fractions is less than in underflow fine coal slurry；Underflow fine coal slurry mud it is a concentration of
150-250g/l；The flow of underflow fine coal slurry mud is 125-175m3/h；Practical dry mine amount is 22.5-30t/h.
7. apparatus for ash drops in a kind of fine coal slurry desliming according to claim 1, it is characterised in that：The lamination high-frequency vibration
The screen slot of dusting cover is chosen to be 0.075mm.
8. apparatus for ash drops in a kind of fine coal slurry desliming according to claims 1 or 2 or 6, it is characterised in that：Two fractions
Grade concentrate cyclone is at least arranged one.
9. apparatus for ash drops in a kind of fine coal slurry desliming according to claim 1 or claim 7, it is characterised in that：The lamination high frequency
Vibrating fine screen is at least arranged one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344787.9U CN207605861U (en) | 2017-10-09 | 2017-10-09 | A kind of fine coal slurry desliming drop apparatus for ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344787.9U CN207605861U (en) | 2017-10-09 | 2017-10-09 | A kind of fine coal slurry desliming drop apparatus for ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207605861U true CN207605861U (en) | 2018-07-13 |
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ID=62793586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721344787.9U Expired - Fee Related CN207605861U (en) | 2017-10-09 | 2017-10-09 | A kind of fine coal slurry desliming drop apparatus for ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207605861U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638951A (en) * | 2017-10-09 | 2018-01-30 | 冯爱成 | Apparatus for ash drops in a kind of fine coal slurry desliming |
| CN109731675A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | A method of therefrom sorting chemical industry coal in coal |
| CN111250021A (en) * | 2020-01-22 | 2020-06-09 | 中国矿业大学 | Environment-friendly fine coal chemical deashing equipment and method |
| CN114653474A (en) * | 2022-05-05 | 2022-06-24 | 山东博选矿物资源技术开发有限公司 | Coal slime water deep upgrading process |
-
2017
- 2017-10-09 CN CN201721344787.9U patent/CN207605861U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638951A (en) * | 2017-10-09 | 2018-01-30 | 冯爱成 | Apparatus for ash drops in a kind of fine coal slurry desliming |
| CN109731675A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | A method of therefrom sorting chemical industry coal in coal |
| CN111250021A (en) * | 2020-01-22 | 2020-06-09 | 中国矿业大学 | Environment-friendly fine coal chemical deashing equipment and method |
| CN114653474A (en) * | 2022-05-05 | 2022-06-24 | 山东博选矿物资源技术开发有限公司 | Coal slime water deep upgrading process |
| CN114653474B (en) * | 2022-05-05 | 2024-02-06 | 陕西博选科技有限公司 | Deep upgrading technology for slime water |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 |