CN201889240U - Coal slime swirler - Google Patents
Coal slime swirler Download PDFInfo
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- CN201889240U CN201889240U CN2010206106581U CN201020610658U CN201889240U CN 201889240 U CN201889240 U CN 201889240U CN 2010206106581 U CN2010206106581 U CN 2010206106581U CN 201020610658 U CN201020610658 U CN 201020610658U CN 201889240 U CN201889240 U CN 201889240U
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Abstract
The utility model discloses a coal slime swirler. The coal slime swirler comprises a swirler body, wherein the swirler body comprises a top cover, a cylinder and a conical barrel, which are sequentially connected; an underflow opening is formed at the bottom of the conical barrel-shaped; a feed pipe is arranged at the part where the lower part of the top cover is connected with the cylinder; the swirler further comprises a second overflow pipe with the diameter different form that of the first overflow pipe; the parts of the first overflow pipe and the second overflow pipe inserted into the swirler body are coaxial but have different lengths; in addition, a first outlet is formed on the first overflow pipe, and a second outlet is formed on the second overflow pipe; and the first outlet and the second outlet are positioned outside the swirler body and has reverse directions. The coal slime swirler is used in combination with a heavy-medium cyclone, a flotation machine and other mainwash equipment, the separation precision of the heavy-medium cyclone and the flotation machine is improved, the cleaned coal recovery rate is increased, the management of medium system is improved; in addition, the slime independent grading equipment or the coarse slime independent separation equipment is omitted.
Description
Technical field
The utility model relates to the mineral manufacture field, relates in particular to a kind of coal slime rotational flow device.
Background technology
One, the predictive desliming heavy medium cyclone more and more comes into one's own and generally adopts
Along with the exploitation and the utilization of coal resources, the quality of coal worse and worse, washability is more and more difficult.Since difficult choosing of heavy medium cyclone suitable treatment and utmost point difficult separation coal, and have the sharpness of separation advantages of higher, become the prefered method of coal separation gradually.The heavy medium cyclone coal preparation technique is divided predictive desliming and not desliming.Not desliming sorting, the heavy medium cyclone sharpness of separation is on the low side, and treating capacity reduces, for the subsequent medium recovery system is brought many difficulties etc.; Desliming sorting, heavy medium cyclone be the sharpness of separation height not only, and treating capacity is big, and medium system is convenient to management, and, greatly reduce dielectric dissipation.When slime content reached some, the viscosity of work suspension was excessive, will have influence on the rheological behavior of suspension, then must carry out the desliming sorting.In addition, along with the mining mechanization degree improves constantly, Bed for Fine Coal in the raw coal (＜2mm) content also improves constantly, and maximum can reach 40～50%.Therefore, the coal separation of predictive desliming heavy medium cyclone has obtained widespread usage gradually, simultaneously, in order to improve the desliming efficient of desliming screen, often the desliming screen sieve aperture is increased to 0.75～1.5mm.
Two, the washing situation of coal slime
At present, main coal preparation method is the gravity separation and the sorting of swimming.Effective lower limit of separation of gravity separation is 1 (or 2) mm; For the sorting of swimming, be limited to 0.3mm in the effective sorting of flotation device, to relatively poor less than 0.074mm fine slime separating effect, though flotation column is better to the fine slime separating effect, but to poor greater than 0.3mm Coarse Coal collecting ability.Therefore as can be known, the gravity separation and the sorting of swimming all can not be carried out effective sorting to the 2-0.3mm coarse slime.Separation of coarse slime equipment spiral, coal slime at present commonly used heavily is situated between cyclone etc. because defective separately, and fails to be widely used in industry.
In recent years, along with hindered bed separator and hydrocyclone sorting coarse slime Study on Technology and exploitation, prove that it is effective equipment of sorting coarse slime, these two kinds of equipment are the industry trial period.
The utility model content
The purpose of this utility model is to provide a kind of coal slime rotational flow device, based on the utility model, can realize classification and sorting to coal slime simultaneously.
A kind of coal slime rotational flow device of the utility model comprises cyclone body, and described cyclone body comprises top cover, cylindrical drum and circular cone tube, and described top cover, described cylindrical drum and described circular cone tube are linked in sequence successively; The bottom of described circular cone tube is provided with underflow opening; Described top cover bottom and cylindrical drum connecting place are provided with feeding pipe; Described cyclone also comprises first overflow pipe and second overflow pipe that diameter is different, and the part that described first overflow pipe and described second overflow pipe are inserted into described cyclone body is coaxial but length is different; And described first overflow pipe is provided with first outlet; Described second overflow pipe is provided with second outlet; Described first outlet is positioned at outside the described cyclone body with described second outlet, and direction is opposite.
Above-mentioned coal slime rotational flow device, the height of preferred described cylindrical drum are 1.5～2.5 times of diameter of described cylindrical drum.
Above-mentioned coal slime rotational flow device, the cone angle of preferred described circular cone tube are 70～140o.
Above-mentioned coal slime rotational flow device, preferred described underflow tap diameter and described cylindrical drum diameter ratio are 0.05-0.08.
In terms of existing technologies, the utility model can be realized coal slime (＜2mm) classification and sorting simultaneously; Masters such as the utility model and heavy medium cyclone and flotation device are washed equipment unite use, the Bed for Fine Coal that the predictive desliming sieve removes enters the compound coal slime cyclone of the utility model, avoid Bed for Fine Coal to enter the system that heavily is situated between, and can control the flotation device top size, improve the sharpness of separation of heavy medium cyclone and flotation device, increase clean coal recovery, improve the management of medium system; In addition, independent classification of coal slime or the independent screening installation of coarse slime have also been saved.
Description of drawings
Fig. 1 is the structural representation of the utility model coal slime rotational flow device first embodiment;
Fig. 2 is the structural representation of the utility model coal slime rotational flow device second embodiment.
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The specific embodiment
With reference to Fig. 1, Fig. 1 is the structural representation of compound coal slime cyclone first embodiment of the utility model.The mixture 3 usefulness pumps of coal slime and water are squeezed in the feeding pipe 4, feed in the cylindrical drum 7 along tangent line by 4, and material is made circular motion in 7.Under the effect of centrifugal force and drag force, material begins layering, and the particle that granularity is big, density is high forms outer at first to peripolesis; The particle that granularity is little, density is high takes second place; Little, the low density particle of granularity forms internal layer to axe movement; In the middle of big, the low density particle of granularity is positioned at.Whole material bed formation external spiral flows to motion down, when reaching circular cone tube 8, owing to be subjected to the obstruction of 8 inwalls, bed is loose, the particle that granularity is little, density is high is transported to skin by the space, big, the low density particle of granularity is moving thoroughly owing to being subjected to squeezing to internal layer, and material is according to the further layering of density like this.Outer field high density material is discharged (coal promptly) by underflow opening 9, because 9 diameter is smaller, all materials can not in time be discharged, the case of low density loads of internal layer can only reverses its direction move upward, form the inside spin stream identical with external spiral stream direction of rotation, inside spin enters in the excessive stream pipe 5 on flowing to, and has so just realized the sorting by density.Enter the case of low density loads in 5,5 and interior overflow pipe 6 inlet between the space in, under action of centrifugal force, will mainly carry out layering by granularity, the particle that granularity is big will move to skin, the overfall discharge (being cleaned coal) by 5; The little movement of particles of granularity is to internal layer, and the overfall by 6 is discharged (promptly less than 0.3mm coal slime), realizes classification.
With reference to Fig. 2, Fig. 2 is the structural representation of the utility model coal slime rotational flow device second embodiment.As shown in Figure 2, the mixture of coal slime and water enters in 7, carries out layering in 7, and the principle of stratification is with described in " one ", and the particle that granularity is little enters inside spin stream, and the overfall by 5 is discharged (promptly less than 0.3mm coal slime), realizes classification; Remaining material flows to motion down with external spiral, and arriving at 8 o'clock carries out sorting, and grading principle is described with above-mentioned embodiment, and the material that density is high is discharged (coal promptly) by 9, and the low material of density is discharged (being cleaned coal) by 6 overflow, realizes sorting.
The workflow that coal slime rotational flow device and heavy medium cyclone, flotation device are united use is: (specification is 0.5～2mm) to carry out the screening of coal grain by predictive desliming sieve to go into to wash raw coal, enter heavy medium cyclone greater than the Coarse Coal of 2mm on the sieve and carry out washing, enter compound coal slime cyclone less than the 2mm Bed for Fine Coal carries out classification and sorting to sieve down, isolate and enter flotation device less than the 0.3mm fine coal slurry and carry out sorting, and the coarse slime greater than 0.3mm carried out sorting, sub-elect cleaned coal and middle coal.
More than a kind of coal slime rotational flow device provided by the utility model is described in detail, used specific embodiment herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, part in specific embodiments and applications all can change.In sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a coal slime rotational flow device is characterized in that,
Comprise cyclone body, described cyclone body comprises top cover, cylindrical drum and circular cone tube, and described top cover, described cylindrical drum and described circular cone tube are linked in sequence successively; The bottom of described circular cone tube is provided with underflow opening; Described top cover bottom and cylindrical drum connecting place are provided with feeding pipe;
Described cyclone also comprises first overflow pipe and second overflow pipe that diameter is different, and the part that described first overflow pipe and described second overflow pipe are inserted into described cyclone body is coaxial but length is different;
And described first overflow pipe is provided with first outlet; Described second overflow pipe is provided with second outlet; Described first outlet is positioned at outside the described cyclone body with described second outlet, and direction is opposite.
2. coal slime rotational flow device according to claim 1 is characterized in that, the height of described cylindrical drum is 1.5～2.5 times of diameter of described cylindrical drum.
3. coal slime rotational flow device according to claim 2 is characterized in that, the cone angle of described circular cone tube is 70 °～140 °.
4. coal slime rotational flow device according to claim 3 is characterized in that, described underflow tap diameter and described cylindrical drum diameter ratio are 0.05-0.08.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206106581U CN201889240U (en) | 2010-11-17 | 2010-11-17 | Coal slime swirler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206106581U CN201889240U (en) | 2010-11-17 | 2010-11-17 | Coal slime swirler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889240U true CN201889240U (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206106581U Expired - Fee Related CN201889240U (en) | 2010-11-17 | 2010-11-17 | Coal slime swirler |
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| Country | Link |
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| CN (1) | CN201889240U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386374A (en) * | 2013-07-26 | 2013-11-13 | 清华大学 | Rotational flow dehydration and medium removing machine |
| CN103831176A (en) * | 2014-03-28 | 2014-06-04 | 中煤科工集团唐山研究院有限公司 | Three-product dense medium cyclone |
| CN103990558A (en) * | 2014-05-20 | 2014-08-20 | 中国矿业大学 | Three-product hydraulic vortex separator |
| CN105396706A (en) * | 2015-02-13 | 2016-03-16 | 杨林 | Hydraulic monomer slack coal coarse slime 11-grade-size clean coal product cyclone |
| CN107716129A (en) * | 2017-10-25 | 2018-02-23 | 成都科盛石油科技有限公司 | A kind of efficient mud separator |
| CN111050921A (en) * | 2017-06-22 | 2020-04-21 | 美卓矿物工业公司 | Cyclone separator |
-
2010
- 2010-11-17 CN CN2010206106581U patent/CN201889240U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103386374A (en) * | 2013-07-26 | 2013-11-13 | 清华大学 | Rotational flow dehydration and medium removing machine |
| CN103831176A (en) * | 2014-03-28 | 2014-06-04 | 中煤科工集团唐山研究院有限公司 | Three-product dense medium cyclone |
| CN103990558A (en) * | 2014-05-20 | 2014-08-20 | 中国矿业大学 | Three-product hydraulic vortex separator |
| CN105396706A (en) * | 2015-02-13 | 2016-03-16 | 杨林 | Hydraulic monomer slack coal coarse slime 11-grade-size clean coal product cyclone |
| CN111050921A (en) * | 2017-06-22 | 2020-04-21 | 美卓矿物工业公司 | Cyclone separator |
| CN111050921B (en) * | 2017-06-22 | 2022-02-01 | 美卓矿物工业公司 | Cyclone separator |
| CN107716129A (en) * | 2017-10-25 | 2018-02-23 | 成都科盛石油科技有限公司 | A kind of efficient mud separator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20131117 |