CN202725309U - Coarse slime separation system - Google Patents
Coarse slime separation system Download PDFInfo
- Publication number
- CN202725309U CN202725309U CN 201220452208 CN201220452208U CN202725309U CN 202725309 U CN202725309 U CN 202725309U CN 201220452208 CN201220452208 CN 201220452208 CN 201220452208 U CN201220452208 U CN 201220452208U CN 202725309 U CN202725309 U CN 202725309U
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- Prior art keywords
- cone angle
- cyclone
- slime
- angle water
- desliming
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Abstract
The utility model discloses a coarse slime separation system which comprises a first desliming screen, a slime barrel and a tri-cone angle water-only cyclone. A base flow pipe of the tri-cone angle water-only cyclone leads to a second desliming screen, an overflow pipe of the tri-cone angle water-only cyclone leads to a third desliming screen, and a slime centrifugal machine is arranged at the bottom of the third desliming screen. According to the coarse slime separation system, the tri-cone angle water-only cyclone and a dense medium system are combined, so that cleans ash of the tri-cone angle water-only cyclone can be guaranteed, large-particle clean coal which is lost from a base flow can be recycled, the coarse slime system can be improved, and combined efficiencies are improved by 4-5 percentage points.
Description
Technical field
The utility model belongs to the coal preparation technology field.
Background technology
In the coal preparation industry, be pressed into the mode of washing can be divided into desliming enter to wash and not desliming enter to wash.The technology relevant with the utility model is that desliming enters to wash technique.
Traditional desliming enters to wash technique, raw coal is after the classification of 1-2mm sieve, undersize material enters again classification of hydraulic classification swirler, overflow in the hydraulic classification swirler enters slime water system, and underflow is sneaked into after high-frequency screen dehydration and fed together the cyclone that heavily is situated between in the raw coal sizing screen on-the-sieve material and carry out sorting.The shortcoming of above-mentioned sorting process is: 1, the graded desliming effect of hydraulic classification swirler is undesirable, because cyclone has obvious inspissation in classification, so that a large amount of thin mud are blended in the underflow, reenter the system that heavily is situated between, do not reach raw coal preparation of deslimed raw coal purpose; 2, the system's clay content height that heavily is situated between not only affects the system that heavily is situated between and normally moves, and separating effect descends; Also affect simultaneously the working effect of magnetic separator, dense media can not obtain high efficiente callback, and dielectric loss is serious.
Advanced desliming grade washing technique is that after the hydraulic classiciation classification, coarse slime is processed with Slime dense medium cyclone separately with the classification undersize material at present.The classification on-the-sieve material adopts dual medium cyclone dressing.The shortcoming of this technique is to introduce new heavily Jie system and medium recovery system, makes the coal preparation technique process more complicated, the increase of investment of not only founding the factory, and also production management is complicated, and medium reclaims more difficult, and the consumption that is situated between increases, and production cost improves.
Also have a kind of desliming grade washing technique to be, after the hydraulic classification equipment classification, independent water Jie of coarse slime screening installation is processed, such as TBS sorting process, spiral chute sorting process with the classification undersize material.The classification on-the-sieve material adopts dual medium cyclone dressing.The shortcoming of this technique is that the sorting precision such as separation of coarse slime equipment TBS, spiral chute are low, although cleans ash can satisfy the customer requirements standard, (coal in thick) loses a large amount of cleaned coal in underflow, and the business economic loss is more serious.
The applicant once applied for a kind of three cone angle water-only cyclone (application numbers: 201220202374.8) for coal slime on April 28th, 2012, this hydrocyclone structure is: it comprises one section cyclone cylindrical shell and one section cyclone cone, and the cyclone cylindrical shell is connected ring flange with the cyclone cone and connects; Cyclone cylindrical shell one side is provided with feeding pipe, is inserted with overflow pipe in the cylinder chamber of cyclone, and the cyclone cone base is provided with underflow pipe, and the cone of described cyclone is spliced by the hollow cone intercepting round platform of three different cone angle.After the shunting of three cone angle water-only cyclones, light product flows out along overflow pipe, and heavy product is flowed out by underflow pipe, realizes the density stratification of pressing of coarse slime.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of low cost, high efficiency separation of coarse slime system.
For achieving the above object, separation of coarse slime of the present utility model system comprises the first desliming screen, coal slime bucket and the three cone angle water-only cyclones of arranging successively from top to bottom; The underflow pipe of three cone angle water-only cyclones leads to the second desliming screen, and the overflow pipe of three cone angle water-only cyclones leads to the 3rd desliming screen.
In order to reduce moisture of cleaned coal, also be provided with coal slime centrifuge or screen bowl centrifuge in the 3rd desliming screen bottom.
Sorting process of the present utility model is:
The first step:
Raw coal at first enters the first desliming screen, obtains the first screenings and the first oversize;
Second step:
The first screenings enters the coal slime bucket, directly squeezes into three cone angle water-only cyclone sortings with pump, obtains three cone angle water-only cyclone underflow thing and overflow substance;
The 3rd step:
Three cone angle water-only cyclone underflow things enter the second desliming screen desliming, obtain the second screenings and the second oversize;
Three cone angle water-only cyclone overflow substance enter the 3rd desliming screen desliming, obtain the 3rd screenings and the 3rd oversize;
The 4th step:
The second oversize and the first oversize are mixed into heavily, and Jie system carries out sorting;
The 3rd oversize can directly be sneaked into cleaned coal;
The 5th step:
The second screenings and the 3rd screenings mix and enter the slime water system processing, and the black water of slime water system can directly enter the flotation link, also can directly enter concentrated link recycling.
Above-mentioned the first desliming screen aperture is Φ 1-2mm;
Above-mentioned the second desliming screen aperture is Φ 0.5mm;
The aperture of above-mentioned the 3rd desliming screen is Φ 0.25mm.
In the utility model the 4th step, the 3rd oversize enters the centrifuge centrifugation when moisture of cleaned coal is strict, obtains centrifugate and cleaned coal; Centrifugate enters slime water system again and processes.
The utility model has the advantages that:
1, three cone angle water-only cyclones have the classification and sorting effect, can guarantee that the thin mud of the overwhelming majority in the pan feeding is got rid of with overflow, avoid a large amount of thin mud to enter the system that heavily is situated between, and the normal operation and the medium that affect the system that heavily is situated between reclaim;
2, take full advantage of the sorting of three cone angle water-only cyclones, reclaim most of cleaned coal, reduce the system loading that heavily is situated between, stay leeway for the raising raw coal enters the amount of washing;
3, the cleaned coal that sub-elects of three cone angle water-only cyclones reclaims separately, has reduced the head coal sculpingscreen load, can improve de-medium effectiveness, reduces dielectric dissipation, reduces production costs, and makes the raw coal processing charges reduce 1-3 yuan/ton;
4, three cone angle water-only cyclones recovery coarse slime technique is simple, arrangement convenience.Technical cost is low, and system forms, is more suitable for the old coal preparation plant technological transformation of technology arrangement compactness.
5, the utility model with three cone angle water-only cyclones and heavily Jie system combine, not only can guarantee the cleans ash of three cone angle water-only cyclones, can also reclaim the bulky grain cleaned coal that runs off in the underflow, both are in conjunction with making the coarse slime system perfecting, and overall efficiency improves 4-5 percentage point.
Description of drawings
The below further specifies technical process of the present utility model with reference to the accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment two.
Among the figure: 1-the first desliming screen, 2-the second desliming screen, 3-the 3rd desliming screen, 4-coal slime bucket, 5-three cone angle water-only cyclones, the 6-system that heavily is situated between, 7-slime water system, 8-cleaned coal storehouse, 9-centrifuge.
The specific embodiment
Structure below in conjunction with description of drawings the utility model separation system.
As shown in Figure 1, the separation of coarse slime system of the utility model embodiment one comprises the first desliming screen 1, coal slime bucket 4 and the three cone angle water-only cyclones 5 of arranging successively from top to bottom; The overflow pipe that the underflow pipe of three cone angle water-only cyclones 5 leads to the second desliming screen 2, three cone angle water-only cyclones 5 leads to the 3rd desliming screen 3.
As shown in Figure 2, separation of coarse slime system and Fig. 1 of the utility model embodiment two are basic identical, and different is also to be provided with coal slime centrifuge or screen bowl centrifuge 9 in the 3rd desliming screen bottom, in order to further reduce moisture of cleaned coal.
After the sorting of coarse slime process the utility model, the oversize of the oversize of the second desliming screen 2 and the first desliming screen 1 is mixed into the system 6 that heavily is situated between and carries out sorting; The screenings of the screenings of the second desliming screen 2, the 3rd desliming screen 3 and centrifugate mix and enter slime water system 7 processing, and the black water of slime water system 7 can directly enter the flotation link, also can directly enter concentrated link recycling; The cleaned coal that sorts out enters cleaned coal storehouse 8.
Claims (2)
1. a separation of coarse slime system is characterized in that, it comprises the first desliming screen, coal slime bucket and the three cone angle water-only cyclones of arranging successively from top to bottom; The underflow pipe of three cone angle water-only cyclones leads to the second desliming screen, and the overflow pipe of three cone angle water-only cyclones leads to the 3rd desliming screen.
2. separation of coarse slime as claimed in claim 1 system is characterized in that, also is provided with coal slime centrifuge or screen bowl centrifuge in the 3rd desliming screen bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452208 CN202725309U (en) | 2012-09-01 | 2012-09-01 | Coarse slime separation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220452208 CN202725309U (en) | 2012-09-01 | 2012-09-01 | Coarse slime separation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202725309U true CN202725309U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220452208 Expired - Fee Related CN202725309U (en) | 2012-09-01 | 2012-09-01 | Coarse slime separation system |
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| CN (1) | CN202725309U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433123A (en) * | 2013-09-16 | 2013-12-11 | 江苏迈安德智能装备有限公司 | Process for ore pulp desliming and ore slurry dehydration |
| CN103464272A (en) * | 2013-09-02 | 2013-12-25 | 山东科技大学 | Coarse coal slime two-section water medium sorting method |
| CN103495494A (en) * | 2013-10-21 | 2014-01-08 | 煤炭工业济南设计研究院有限公司 | Coarse coal slime sorting equipment and technology of coarse coal slime sorting equipment |
| CN105233973A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | Graded desliming system and process for mica |
| CN105964392A (en) * | 2016-06-20 | 2016-09-28 | 中国神华能源股份有限公司 | Coal dressing and desliming system |
| CN109731675A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | A method of therefrom sorting chemical industry coal in coal |
-
2012
- 2012-09-01 CN CN 201220452208 patent/CN202725309U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464272A (en) * | 2013-09-02 | 2013-12-25 | 山东科技大学 | Coarse coal slime two-section water medium sorting method |
| CN103464272B (en) * | 2013-09-02 | 2016-04-13 | 山东科技大学 | A kind of coarse slime two sections of water Jie method for separating |
| CN103433123A (en) * | 2013-09-16 | 2013-12-11 | 江苏迈安德智能装备有限公司 | Process for ore pulp desliming and ore slurry dehydration |
| CN103495494A (en) * | 2013-10-21 | 2014-01-08 | 煤炭工业济南设计研究院有限公司 | Coarse coal slime sorting equipment and technology of coarse coal slime sorting equipment |
| CN103495494B (en) * | 2013-10-21 | 2016-05-18 | 煤炭工业济南设计研究院有限公司 | A kind of separation of coarse slime equipment and technique thereof |
| CN105233973A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | Graded desliming system and process for mica |
| CN105964392A (en) * | 2016-06-20 | 2016-09-28 | 中国神华能源股份有限公司 | Coal dressing and desliming system |
| CN109731675A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | A method of therefrom sorting chemical industry coal in coal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140901 |
|
| EXPY | Termination of patent right or utility model |