CN101543738A - Equipment and method for forcibly mixing size - Google Patents
Equipment and method for forcibly mixing size Download PDFInfo
- Publication number
- CN101543738A CN101543738A CN200910030154A CN200910030154A CN101543738A CN 101543738 A CN101543738 A CN 101543738A CN 200910030154 A CN200910030154 A CN 200910030154A CN 200910030154 A CN200910030154 A CN 200910030154A CN 101543738 A CN101543738 A CN 101543738A
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- mixing
- impeller
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- forced
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- 238000002156 mixing Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 10
- 239000011707 mineral Substances 0.000 abstract description 10
- 239000002002 slurry Substances 0.000 abstract 6
- 238000007781 pre-processing Methods 0.000 abstract 2
- 239000003250 coal slurry Substances 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000008396 flotation agent Substances 0.000 abstract 1
- 238000010008 shearing Methods 0.000 description 6
- 238000005188 flotation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention relates to equipment and a method for forcibly mixing size. Main moving components of the equipment comprise a high-speed sheering combined impeller assembly and a mixing and stirring impeller assembly; the equipment adopts two-section multi-layer combined impellers according to the characteristics of material and fluid, is arranged in different special positions in a barrel and realizes the axial high sheering of mineral slurry in different flow layers under the dual actions of high sheering and forcibly stirred flow so as to increase the difference between coal surface hydrophobicity and attal surface hydrophobicity and preprocess the mineral slurry and flotation agent. The equipment has the functions of mineral slurry preprocessing, mineral surface modifying, high mineral slurry sheering and forcibly flow mixing, has better mineral slurry preprocessing effect than conventional equipment, solves the problem that the prior coal surface modifying equipment consumes more power, runs stably and reliably, is suitable for replacing conventional mineral slurry preparing equipment before separating fine-grained coal slurry which is difficult to separate and can be used as auxiliary equipment for effectively separating lean, mixed and micro-fine grained mineral which is difficult to separate.
Description
Technical field
The present invention relates to Forced Mixing size mixing equipment and method, especially a kind of method and apparatus that is applicable to that high grey difficulty selects the fine slime ore pulp to size mixing.
Background technology
High grey difficulty selects the main feature of Bed for Fine Coal to be " thin, assorted, difficulty ", embodies a concentrated expression of that mineral impurity component height in the coal, middle coal content are big, floatability difference and mineral disseminated grain size be thin.
At present, selecting Bed for Fine Coal surfaction and the method that the technology of sizing mixing adopts for difficulty is the method for physical or chemical treatment, mainly be make-coal grain Surface Physical, chemistry or the physicochemical properties of 0.5mm grade change, thereby reach the purpose that helps sorting or processing.Because coal-forming and occurrence condition, the surface hydrophobic of some coal is relatively poor, and floatability is also poor, and also some coal is owing to deposit the coal condition, and the surperficial oxidized of coal goes bad, and causes the surface hydrophobic variation, and floatability is variation thereupon also.Coal preparation plant if run into the coal of floatability difference, will cause the flotation effect variation in actual production process, even can not form the mineralized froth layer in the flotation device, and last whole flotation recovery system lost efficacy, and a large amount of coal slimes efflux.Contaminated environment so not only, and cause the tremendous economic loss owing to clean coal yield descends.Therefore, the development of new difficulty is selected Bed for Fine Coal surfaction and efficient size mixing equipment, for improving the difficult surface-active of selecting particulate, improve the selectivity of assorting room, reduce the head coal product ash content, accelerate flotation speed, improve the floatation clean coal productive rate, have important and practical meanings, and become one of efficient sorting key technology of high grey difficult separation coal.
Summary of the invention
The objective of the invention is at the problem that exists in the prior art, provide a kind of simple in structure, easy to operate, the excellent in efficiency of sizing mixing, Forced Mixing size mixing equipment and method that the floatation clean coal productive rate is high.
Forced Mixing size mixing equipment of the present invention: it comprises mixing cirtern, be fixed on the belt gear that mixing cirtern covers, the power transmission shaft that links to each other with belt gear, the power transmission shaft outer cover is equipped with holder, stretch in the mixing cirtern in the lump with holder, the power transmission shaft that stretches in the mixing cirtern is provided with stirring rotator, the periphery of stirring rotator is provided with the stirring stator that is fixed on the holder, the bottom of power transmission shaft is provided with coupling band, be connected with the wheel rotation axle by coupling band, the wheel rotation axle is provided with the high shear combined impeller, and the top of mixing cirtern bottom drain hole is provided with deflector, and deflector is provided with the turriform guide shell that covers impeller, the top of mixing cirtern is provided with blow tank, the bottom of blow tank is provided with discharging opening, and the top of mixing cirtern is provided with the floating agent case, and floating agent case bottom is provided with sends medicament into the pencil of going in the mixing cirtern.
Described holder is made of sleeve pipe, the bearing that is located at the sleeve pipe two ends and bearing (ball) cover; Described stirring stator is made up of a plurality of blades; The high shear combined impeller that is provided with on the described impeller shaft is two, is spaced up and down, and the diameter ratio of two impellers is about 2:1, and is up-small and down-big, and it is staggered that its locus is 90 degree; Described up and down spaced high shear combined impeller, above one be straight leaf impeller, but below one be the combined impeller of hinged joint.
Forced Mixing mixing method of the present invention: ore pulp is infeeded from the bottom, drain into high shear combined impeller zone through deflector, material is under the strong shear action of the hinged joint impeller in the high speed shear combined impeller, material is axially upwards discharged, again through the reverse compacting of turriform guide shell, material is forced to upgrading at the mechanical fluid active force, and the ore pulp behind the upgrading is eddy flow and upwards flows; At stirring rotator with stir the stator place and go into after floating agent that pencil sends into mixes, overflow enters blow tank, stablizes outflow along the discharging opening of blow tank through ore pulp that the turriform guide shell is derived.
Beneficial effect of the present invention: relative high speed rotation between impeller and turriform guide shell (linear velocity of quick runner rotor outer end〉12m/s) can produce very high shear stress and fluid force chemical effect, bring powerful shearing kinetic energy to ore pulp, and stirring rotator and stator by its upper side powerful mixing of carrying out ore pulp and medicament.Make comprehensive functions such as material moment generation fluid power of different nature shearing, friction collision, centrifugal extruding and strong turbulence, make respectively to produce multiple-effects such as high degree of dispersion, mixing, emulsification, fragmentation, activation, homogeneous in the ore pulp mutually, thereby improve the hydrophobicity and the floatability of coal.The frequency modulation motor that adopts can be adjusted rotating speed at any time at ore pulp character; The combined impeller that adopts can be respectively varigrained particle provides different upgrading energy and shear-mixed forms, give the bulky grain more energy on the one hand, avoid again granule was caused pulverizing on the one hand, with ore pulp in pump is squeezed into equipment, import near the high shear combined impeller zone through deflector, after the powerful shearing of hinged joint impeller, under the secondary shearing stream effect of straight leaf impeller, material is axially discharged again, material behind the upgrading enters into its upper side through guide shell, mix stirring at this place and medicament then, realize effective mineralising.It is simple in structure, and is easy to operate, easy to use, and the ore pulp pretreating effect is good, the efficient of sizing mixing height, and floatation clean coal productive rate height has practicality widely.
Description of drawings
Accompanying drawing is the structure chart of present device.
Among the figure: frequency modulation motor-1, go into pencil-2, stirring rotator-3 stirs stator-4, straight leaf impeller-5, guide shell-6, hinged joint impeller-7, deflector-8, feeding mouth-9, blow tank-10, discharging opening-11, small belt pulley-12, big belt pulley-13, holder-14, support-15, floating agent case-16, power transmission shaft-17, coupling sleeve-18, connecting axle-19, agitator-20 stirs bung-21.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
Forced Mixing size mixing equipment of the present invention, mainly constitute by mixing cirtern 20, belt gear, power transmission shaft 17, holder 14 and stirring system, belt gear is fixed on the bung 21 of sizing mixing, belt gear by frequency modulation motor 1, be located at small belt pulley 12 on frequency modulation motor 1 power transmission shaft, big belt pulley 13 by the belt interlock constitutes; Frequency modulation motor 1 is fixed on by support 15 and stirs on the bung 21; Big belt pulley is sleeved on the power transmission shaft 17, power transmission shaft 17 outer cover are equipped with holder 14, stretch in the lump in the mixing cirtern 20 with holder 14, holder 14 is made of sleeve pipe, the bearing that is located at the sleeve pipe two ends and bearing (ball) cover, the jacket exterior of holder 14 is provided with support, is fixed in to stir on the bung 21; The power transmission shaft 17 that stretches in the mixing cirtern 20 is provided with stirring rotator 3, and the periphery of stirring rotator 3 is provided with the stirring stator 4 that is fixed on the holder 14, stirs stator 4 and is made up of a plurality of blades.The bottom of power transmission shaft 17 is provided with coupling band 18, be connected with impeller shaft 19 by coupling band 18, impeller shaft 19 is provided with the high shear combined impeller, and the high shear combined impeller that is provided with on the impeller shaft 19 is two, is spaced up and down, the diameter ratio of two impellers is about 2:1, up-small and down-big, it is staggered that its locus is 90 degree, spaced up and down high shear combined impeller, above one be straight leaf impeller 5, but below one be the combined impeller 7 of hinged joint.The top of mixing cirtern 20 bottom feed mouths 9 is provided with deflector 8, deflector 8 is provided with the turriform guide shell 6 that covers impeller, the top of mixing cirtern 20 is provided with blow tank 10, the bottom of blow tank 10 is provided with discharging opening 11, the top of mixing cirtern 20 is provided with floating agent case 16, and floating agent case 16 bottoms are provided with medicament sent into goes into pencil 3 in the mixing cirtern 20.
Forced Mixing mixing method of the present invention: ore pulp infeeds with jet from the bottom cylinder edge, under the guiding of deflector 8, enter the high shear combined impeller zone in the turriform guide shell 6, under the hinged joint impeller 7 and 5 effects of straight impeller of high speed rotating, ore pulp is subjected to mechanical fluid stress effect upgrading.The turriform guide shell guides ore pulp to enter the agitator arm zone to carry out medicament and mix on the one hand, on the other hand, under the promotion of the eddy flow of pan feeding, through cone tank, the turbulent flow of ore pulp presents extruded eddy flow, under the effect of upwelling and eddy flow, material is according to the particle grade, layering appears in the difference of density, big particle is at skin, fine particle is at internal layer, and material axially discharges material under the axial flow effect of straight leaf impeller 5 under the strong shear action of the hinged joint impeller 7 in the high speed shear combined impeller again, again through the reverse compacting of turriform guide shell, form repeatedly and shear, ore pulp is eddy flow and upwards flows, under fluid force, material is forced to shear dispersion and reaches the homogeneous upgrading, and ore pulp is through deflector chute 10 stable outflows.Its diameter of impeller sets is all different with number and riding position, has solved the different cut modes of different material: big impeller provides more energy to big particle, and small impeller provides less energy to fine particle; The hinged joint impeller provides strong shear action, belongs to the shearing of sizing mixing at a high speed; Straight leaf impeller provides secondary shearing stream, belongs at a slow speed and sizes mixing the stage, avoids pulverizing.Putting of different blade combinations and diverse location promotes the homogenization after the realization material is sheared.
Claims (6)
1 one kinds of Forced Mixing size mixing equipments, it is characterized in that: it comprises mixing cirtern (20), be fixed on the belt gear on the bung of sizing mixing (21), the power transmission shaft that links to each other with belt gear (17), power transmission shaft (17) outer cover is equipped with holder (14), stretch in the lump in the mixing cirtern (20) with holder (14), the power transmission shaft (17) that stretches in the mixing cirtern (20) is provided with stirring rotator (3), the periphery of stirring rotator (3) is provided with the stirring stator (4) that is fixed on the holder (14), the bottom of power transmission shaft (17) is provided with coupling band (18), be connected with wheel rotation axle (19) by coupling band (18), wheel rotation axle (19) is provided with the high shear combined impeller, the top of mixing cirtern (20) bottom feed mouth (9) is provided with deflector (8), deflector (8) is provided with the turriform guide shell (6) that covers impeller, the top of mixing cirtern (20) is provided with blow tank (10), the bottom of blow tank (10) is provided with discharging opening (11), accent is provided with floating agent case (16) with the top of bucket (20), and floating agent case (16) bottom is provided with medicament sent into goes into pencil (2) in the mixing cirtern (20).
2. Forced Mixing size mixing equipment according to claim 1 is characterized in that: described holder (14) is made of sleeve pipe, the bearing that is located at the sleeve pipe two ends and bearing (ball) cover.
3. mixing size mixing equipment according to claim 1 is characterized in that: described stirring stator (4) is made up of a plurality of blades.
4. Forced Mixing size mixing equipment according to claim 1, it is characterized in that: it is two that described impeller shaft (19) is gone up the high shear combined impeller that is provided with, and is spaced up and down, and the diameter ratio of two impellers is about 2: 1, up-small and down-big, it is staggered that its locus is 90 degree.
5. Forced Mixing size mixing equipment according to claim 4 is characterized in that: described up and down spaced high shear combined impeller, above one be straight leaf impeller (5), but below one be the hinged joint impeller (7) of hinged joint.
6. Forced Mixing mixing method of equipment according to claim 1, it is characterized in that: (9) infeed from the bottom with ore pulp, drain into high shear combined impeller zone through deflector (8), material is under the strong shear action of the hinged joint impeller (7) in the high speed shear combined impeller, material is axially upwards discharged, again through the reverse compacting of turriform guide shell (6), material is under the effect of mechanical fluid power, be forced to upgrading, the ore pulp behind the upgrading is eddy flow and upwards flows; At stirring rotator (3) with stir stator (4) and locate and go into after floating agent that pencil (2) sends into mixes, overflow enters blow tank (10), stablizes outflow along the discharging opening (11) of blow tank (10) through ore pulp that turriform guide shell (6) is derived.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100301544A CN101543738B (en) | 2009-03-20 | 2009-03-20 | Equipment and method for forcibly mixing size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100301544A CN101543738B (en) | 2009-03-20 | 2009-03-20 | Equipment and method for forcibly mixing size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101543738A true CN101543738A (en) | 2009-09-30 |
| CN101543738B CN101543738B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100301544A Expired - Fee Related CN101543738B (en) | 2009-03-20 | 2009-03-20 | Equipment and method for forcibly mixing size |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172487A (en) * | 2011-01-26 | 2011-09-07 | 浙江港龙新材料有限公司 | Nano material dispersing device for spray painting and method for preparing ink absorption layer paint by using same |
| CN102649101A (en) * | 2011-02-23 | 2012-08-29 | 四川环能德美科技股份有限公司 | Mine magnetic dense medium recycling process |
| CN102921331A (en) * | 2012-12-04 | 2013-02-13 | 长兴适安特服装材料有限公司 | High-capacity size mixer |
| CN103120907A (en) * | 2013-03-01 | 2013-05-29 | 西安科技大学 | Multistage forcing mixing size mixing equipment |
| CN103272682A (en) * | 2013-06-07 | 2013-09-04 | 中南大学 | Pre-flotation pretreatment method for fine-particle weathered tungsten ore |
| CN103721620A (en) * | 2012-10-11 | 2014-04-16 | 北京三矿通科技有限公司 | Pulp modification blade, stirring system and pulp modification machine |
| CN105521727A (en) * | 2016-01-26 | 2016-04-27 | 安徽理工大学 | Combined slurry mixing equipment for fine coal difficult to float |
| CN105521738A (en) * | 2016-01-26 | 2016-04-27 | 安徽理工大学 | Integrated slurry mixing equipment for difficult-to-float fine coal |
| CN105750099A (en) * | 2016-02-29 | 2016-07-13 | 中国矿业大学 | Method for agglomerating and sorting fine coal slime by high-shearing oil |
| CN107537698A (en) * | 2017-09-26 | 2018-01-05 | 中国矿业大学 | One kind strengthens coarse slime flotation unit |
| CN107597450A (en) * | 2016-07-11 | 2018-01-19 | 中国黄金集团建设有限公司 | A kind of stirring system of flotation device |
| CN108246155A (en) * | 2018-02-10 | 2018-07-06 | 太原理工大学 | A kind of compound coal slime flotation high shear pretreatment unit |
| CN111871620A (en) * | 2020-06-22 | 2020-11-03 | 中国矿业大学 | Pre-selection efficient size mixing method suitable for wide-size-fraction flotation |
| CN112915837A (en) * | 2021-01-20 | 2021-06-08 | 吉林省德高文化传媒有限公司 | Chemical oil emulsification equipment |
| CN114618185A (en) * | 2022-03-01 | 2022-06-14 | 浙江长城搅拌设备股份有限公司 | Benzyl ester suspension crystallization kettle stirrer |
| CN115138484A (en) * | 2022-06-09 | 2022-10-04 | 株洲天桥舜臣选煤机械有限责任公司 | Flotation machine for mineral separation and mineral flotation method |
| CN115213020A (en) * | 2021-04-21 | 2022-10-21 | 中国煤矿机械装备有限责任公司 | Low-order power coal slime flotation process |
-
2009
- 2009-03-20 CN CN2009100301544A patent/CN101543738B/en not_active Expired - Fee Related
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| CN102172487A (en) * | 2011-01-26 | 2011-09-07 | 浙江港龙新材料有限公司 | Nano material dispersing device for spray painting and method for preparing ink absorption layer paint by using same |
| CN102649101A (en) * | 2011-02-23 | 2012-08-29 | 四川环能德美科技股份有限公司 | Mine magnetic dense medium recycling process |
| CN103721620B (en) * | 2012-10-11 | 2016-08-03 | 北京三矿通科技有限公司 | The modification blade of ore pulp, stirring system and ore pulp modifying machine |
| CN103721620A (en) * | 2012-10-11 | 2014-04-16 | 北京三矿通科技有限公司 | Pulp modification blade, stirring system and pulp modification machine |
| CN102921331A (en) * | 2012-12-04 | 2013-02-13 | 长兴适安特服装材料有限公司 | High-capacity size mixer |
| CN103120907A (en) * | 2013-03-01 | 2013-05-29 | 西安科技大学 | Multistage forcing mixing size mixing equipment |
| CN103272682A (en) * | 2013-06-07 | 2013-09-04 | 中南大学 | Pre-flotation pretreatment method for fine-particle weathered tungsten ore |
| CN103272682B (en) * | 2013-06-07 | 2015-10-21 | 中南大学 | A kind of for the preprocess method before fine weathering floatation of tungsten mineral |
| CN105521727A (en) * | 2016-01-26 | 2016-04-27 | 安徽理工大学 | Combined slurry mixing equipment for fine coal difficult to float |
| CN105521738A (en) * | 2016-01-26 | 2016-04-27 | 安徽理工大学 | Integrated slurry mixing equipment for difficult-to-float fine coal |
| CN105750099B (en) * | 2016-02-29 | 2018-04-13 | 中国矿业大学 | A kind of method of high shear oil aggregation sorting fine coal slime |
| CN105750099A (en) * | 2016-02-29 | 2016-07-13 | 中国矿业大学 | Method for agglomerating and sorting fine coal slime by high-shearing oil |
| CN107597450A (en) * | 2016-07-11 | 2018-01-19 | 中国黄金集团建设有限公司 | A kind of stirring system of flotation device |
| CN107537698A (en) * | 2017-09-26 | 2018-01-05 | 中国矿业大学 | One kind strengthens coarse slime flotation unit |
| CN107537698B (en) * | 2017-09-26 | 2024-04-26 | 中国矿业大学 | Reinforced coarse slime flotation device |
| CN108246155A (en) * | 2018-02-10 | 2018-07-06 | 太原理工大学 | A kind of compound coal slime flotation high shear pretreatment unit |
| CN111871620A (en) * | 2020-06-22 | 2020-11-03 | 中国矿业大学 | Pre-selection efficient size mixing method suitable for wide-size-fraction flotation |
| CN112915837A (en) * | 2021-01-20 | 2021-06-08 | 吉林省德高文化传媒有限公司 | Chemical oil emulsification equipment |
| CN115213020A (en) * | 2021-04-21 | 2022-10-21 | 中国煤矿机械装备有限责任公司 | Low-order power coal slime flotation process |
| CN114618185A (en) * | 2022-03-01 | 2022-06-14 | 浙江长城搅拌设备股份有限公司 | Benzyl ester suspension crystallization kettle stirrer |
| CN114618185B (en) * | 2022-03-01 | 2023-11-03 | 浙江长城搅拌设备股份有限公司 | Benzyl ester suspension crystallization kettle stirrer |
| CN115138484A (en) * | 2022-06-09 | 2022-10-04 | 株洲天桥舜臣选煤机械有限责任公司 | Flotation machine for mineral separation and mineral flotation method |
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| Publication number | Publication date |
|---|---|
| CN101543738B (en) | 2011-12-07 |
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Granted publication date: 20111207 Termination date: 20160320 |