CN105750099B - A kind of method of high shear oil aggregation sorting fine coal slime - Google Patents
A kind of method of high shear oil aggregation sorting fine coal slime Download PDFInfo
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- CN105750099B CN105750099B CN201610107574.8A CN201610107574A CN105750099B CN 105750099 B CN105750099 B CN 105750099B CN 201610107574 A CN201610107574 A CN 201610107574A CN 105750099 B CN105750099 B CN 105750099B
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- high shear
- coal
- ore pulp
- coal slime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Processing Of Solid Wastes (AREA)
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Abstract
The present invention discloses a kind of method of high shear oil aggregation sorting fine coal slime, and a. coal slimes enter in ore pulp preprocessor with the ore pulp that water is formed sizes mixing；B. sizing mixing while toward adding non-polar hydrocarbon oil in ore pulp preprocessor；C. the slurry ore deposit after mineralising is sized mixing enters in high shear reaction kettle through Pulp pump to be handled；D. the coal slime for completing high shear oil aggregation process enters hydroclone classification；E. fine grain not agglomerating tail coal enters cyclone overflow port, and pockets of cleaned coal enters cyclone underflow opening.Beneficial effect is：First using the high speed shear selectively fine beans of reunion, form the cleaned coal floc sedimentation that granularity is big, intensity is higher, then cleaned coal floc sedimentation is separated with fine spoil particle using the method for cyclone classification again, sorting process can sort high grey thin mud content big coal slime while simplification, achieve the purpose that aid for Micro-fine Coal Slurry Dewatering efficient separation.
Description
Technical field
The present invention relates to a kind of method for separating, and in particular to a kind of method of high shear oil aggregation sorting fine coal slime.
Background technology
As the raising of mining mechanization degree, mining depth are deepened, coal resources geological conditions runs down, particulate
Ratio shared in raw coal sharply increases with ultra-fine coal slurry, and the trend that high grey difficulty selects superfine coal slurry content increase is presented.
Coal is as a kind of non-renewable resources, and with the continuous reduction of coal reserves, the high-efficiency cleaning of coal slime resource, which utilizes, has weight
Researching value and realistic meaning are wanted, and realizes coal resources efficient separation, the emphasis utilized and difficult point at present.
At present, flotation is that graded shot fine coal is most ripe, effective method, and is widely used in industrial production.Flotation
Journey, acts in ore pulp Chinese medicine and mineral surfaces first, increases the surface property differences of hydrophobic coal grain and hydrophily ore particle,
Then by the floating of bubble, carry surface hydrophobic coal slime and float and enters froth bed, ultimately form cleaned coal, and hydrophilic ore particle
Stay in ore pulp, finally discharged with tailing, become tail coal.
However, when high ash thin mud content is big in coal slime, high ash thin mud passes through moisture mechanical entrapment, coal grain surface the cover etc.
Process influences flotation, the loss of pollution and low ash extract coal of the high grey thin mud to floatation clean coal easily occurs so that flotation is difficult to
Reach comparatively ideal sorting to descend, cause floatation clean coal ash content to meet product quality requirement, and lose the flammable body of cleaned coal
The rate of recovery.
Therefore, for the big coal slime of high grey thin mud content, it is necessary to take significantly more efficient method for separating, more managed with obtaining
The separating effect thought, to meet the economic needs of enterprise, and the strategic demand that non-renewable resources maximally utilize.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of side of high shear oil aggregation sorting fine coal slime
Method, can sort the big coal slime of high grey thin mud content.
To achieve these goals, the technical solution adopted by the present invention is：A kind of high shear oil aggregation sorts fine coal slime
Method, including ore pulp preprocessor, Pulp pump, high shear reaction kettle and hydrocyclone, bottom, the side of ore pulp preprocessor
Face offers feeding mouth, discharge port respectively, and the top of ore pulp preprocessor is equipped with the first motor, the discharge port of ore pulp preprocessor
Connected with the feed inlet of Pulp pump, the discharge port of Pulp pump is connected by the feed inlet of reaction kettle pan feeding valve and high shear reaction kettle
Logical, the top of high shear reaction kettle is equipped with the second motor, and the discharge port of high shear reaction kettle passes through cyclone pan feeding valve and water
The feed inlet connection of power cyclone, top, the bottom of hydrocyclone open up cyclone overflow port, cyclone underflow opening respectively；
A. coal slime enters in ore pulp preprocessor with the ore pulp that water is formed and sizes mixing；
B. sizing mixing while toward adding non-polar hydrocarbon oil in ore pulp preprocessor；
C. the slurry ore deposit after mineralising is sized mixing enters in high shear reaction kettle through Pulp pump to be handled；
D. the coal slime for completing high shear oil aggregation process enters hydroclone classification；
E. fine grain not agglomerating tail coal enters cyclone overflow port, and pockets of cleaned coal enters cyclone underflow opening.
Compared with prior art, the present invention is first using the high speed shear selectively fine beans of reunion, and formation granularity is big, intensity
Higher cleaned coal floc sedimentation, is then again separated cleaned coal floc sedimentation with fine spoil particle using the method for cyclone classification, sorting process
High grey thin mud content big coal slime can be sorted while simplification, achievees the purpose that aid for Micro-fine Coal Slurry Dewatering efficient separation.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
In figure：1st, ore pulp preprocessor, 2, Low speed electric motor, 3, feeding mouth, 4, discharge port, 5, Pulp pump, 6, reaction kettle,
7th, high shear reaction kettle, 8, pot motor, 9, cyclone pan feeding valve, 10, hydrocyclone, 11, cyclone overflow, 12,
Cyclone underflow opening.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, this high shear oil aggregation sorting fine coal slime method, including ore pulp preprocessor 1, Pulp pump 5,
High shear reaction kettle 7 and hydrocyclone 10, bottom, the side of ore pulp preprocessor 1 offer feeding mouth 3, discharge port respectively
4, the top of ore pulp preprocessor 1 is equipped with the first motor 2, and the first motor 2 is Low speed electric motor, the discharging of ore pulp preprocessor 1
Mouth 4 is connected with the feed inlet of Pulp pump 5, and the discharge port of Pulp pump 5 passes through reaction kettle pan feeding valve 6 and high shear reaction kettle 7
Feed inlet connects, and the top of high shear reaction kettle 7 is equipped with the second motor 8, and the second motor 8 is pot motor, and rotating speed is
1300rpm-1500rpm, the discharge port of high shear reaction kettle 7 pass through the charging of cyclone pan feeding valve 9 and hydrocyclone 10
Mouth connection, top, the bottom of hydrocyclone 10 open up cyclone overflow port 11, cyclone underflow opening 12 respectively；
A. the ore pulp that selected coal slime is formed with water initially enters sizes mixing in ore pulp preprocessor 1, and ore pulp preprocessor 1 pushes up
Portion is provided with the first motor 2, and the first motor 2 is Low speed electric motor, drives rotor to slowly run；
B. toward addition non-polar hydrocarbon oil in ore pulp preprocessor 1 while the first motor 2 slowly runs and sizes mixing；
C. the slurry ore deposit after advance mineralising is sized mixing is discharged by discharge port 4, through Pulp pump 5 and reaction kettle pan feeding valve 6
Control, which enters in high shear reaction kettle 7, to be handled, and the top of high shear reaction kettle 7 is equipped with the second motor 8, in 8 rotating speed of the second motor
For under the drive of 1300rpm-1500rpm, coal slime particle completes high shear oil aggregation process within the regular hour；
D. the coal slime for completing high shear oil aggregation process enters hydrocyclone by the control of cyclone pan feeding valve 9
10 classifications；
E. fine grain not agglomerating tail coal enters cyclone overflow port 11, and pockets of cleaned coal enters cyclone underflow opening
12, by the post-treatment procedures such as being further dehydrated, form final low ash extract coal.
High shear oil aggregation method is to sort another effective method of fine beans, and basic principle is according to coal surface
With the hydrophobic difference of mineral surfaces, invigoration effect is sheared by the stirring of high speed, using the bridge linking effect of non-polar oil micro-
Particulate, hydrophobic coal wrap up in into small granule, and hydrophilic gangue particle is dispersed in water, then by grading granule from water
In separate, high shear oil aggregation process is not related to air bubble problem, it is possible to prevente effectively from mechanical caused by bubble hydration shell
Entrainment problem, while high speed shear acts on, can be by thin mud the cover coal grain compulsory commutation, and cause hydrophobicity coal slime and non-polar oil
Hydrophobic forces are continuously increased, the intensity and granularity for making granule constantly increase, and the present invention is first selectively reunited using high speed shear
Fine beans, forms the cleaned coal floc sedimentation that granularity is big, intensity is higher, then again using cyclone classification method by cleaned coal floc sedimentation with it is micro-
Thin spoil particle separation, achievees the purpose that aid for Micro-fine Coal Slurry Dewatering efficient separation.
Claims (4)
- A kind of 1. method of high shear oil aggregation sorting fine coal slime, it is characterised in that including ore pulp preprocessor（1）, slurry Pump（5）, high shear reaction kettle（7）And hydrocyclone（10）, ore pulp preprocessor（1）Bottom, side offer respectively into Material mouth（3）, discharge port（4）, ore pulp preprocessor（1）Top be equipped with the first motor（2）, ore pulp preprocessor（1）Discharging Mouthful（4）With Pulp pump（5）Feed inlet connection, Pulp pump（5）Discharge port pass through reaction kettle pan feeding valve（6）It is anti-with high shear Answer kettle（7）Feed inlet connection, high shear reaction kettle（7）Top be equipped with the second motor（8）, high shear reaction kettle（7）Go out Material mouth passes through cyclone pan feeding valve（9）With hydrocyclone（10）Feed inlet connection, hydrocyclone（10）Top, bottom Portion opens up cyclone overflow port respectively（11）, cyclone underflow opening（12）；A. the ore pulp that coal slime is formed with water enters ore pulp preprocessor（1）In size mixing；B. sizing mixing while toward ore pulp preprocessor（1）Middle addition non-polar hydrocarbon oil；C. the slurry ore deposit after mineralising is sized mixing is through Pulp pump（5）Into high shear reaction kettle（7）Middle processing；D. the coal slime for completing high shear oil aggregation process enters hydrocyclone（10）Classification；E. fine grain not agglomerating tail coal enters cyclone overflow port（11）, and pockets of cleaned coal enters cyclone underflow opening （12）.
- 2. the method for a kind of high shear oil aggregation sorting fine coal slime according to claim 1, it is characterised in that described First motor（2）For Low speed electric motor.
- 3. the method for a kind of high shear oil aggregation sorting fine coal slime according to claim 1, it is characterised in that described Second motor（8）For pot motor.
- 4. the method for a kind of high shear oil aggregation sorting fine coal slime according to claim 3, it is characterised in that described Second motor（8）Rotating speed is 1300rpm-1500rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610107574.8A CN105750099B (en) | 2016-02-29 | 2016-02-29 | A kind of method of high shear oil aggregation sorting fine coal slime |
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| CN201610107574.8A CN105750099B (en) | 2016-02-29 | 2016-02-29 | A kind of method of high shear oil aggregation sorting fine coal slime |
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| CN105750099A CN105750099A (en) | 2016-07-13 |
| CN105750099B true CN105750099B (en) | 2018-04-13 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248697A (en) * | 1979-05-29 | 1981-02-03 | Consolidation Coal Company | Oil agglomeration process |
| CN2068016U (en) * | 1990-02-23 | 1990-12-26 | 煤炭科学研究总院唐山分院 | Double feed port water media cyclone group for coal washery |
| CA2172028A1 (en) * | 1996-03-18 | 1997-09-19 | Olev Trass | Flotation of oil-agglomerated coal for ash and pyrite removal-simultaneous grinding and agglomeration |
| CN101543738A (en) * | 2009-03-20 | 2009-09-30 | 中国矿业大学 | Equipment and method for forcibly mixing size |
| CN102430481A (en) * | 2011-10-19 | 2012-05-02 | 中国矿业大学 | Sorting process for high-ash and difficult-separation coal slime |
| CN103962251A (en) * | 2014-04-18 | 2014-08-06 | 松阳县中奇环境工程有限公司 | Shearing emulsifying smashing device for processing materials containing ferrites |
-
2016
- 2016-02-29 CN CN201610107574.8A patent/CN105750099B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4248697A (en) * | 1979-05-29 | 1981-02-03 | Consolidation Coal Company | Oil agglomeration process |
| CN2068016U (en) * | 1990-02-23 | 1990-12-26 | 煤炭科学研究总院唐山分院 | Double feed port water media cyclone group for coal washery |
| CA2172028A1 (en) * | 1996-03-18 | 1997-09-19 | Olev Trass | Flotation of oil-agglomerated coal for ash and pyrite removal-simultaneous grinding and agglomeration |
| CN101543738A (en) * | 2009-03-20 | 2009-09-30 | 中国矿业大学 | Equipment and method for forcibly mixing size |
| CN102430481A (en) * | 2011-10-19 | 2012-05-02 | 中国矿业大学 | Sorting process for high-ash and difficult-separation coal slime |
| CN103962251A (en) * | 2014-04-18 | 2014-08-06 | 松阳县中奇环境工程有限公司 | Shearing emulsifying smashing device for processing materials containing ferrites |
Non-Patent Citations (1)
| Title |
|---|
| 微细粒矿物疏水聚团的研究现状及进展;陈军等;《矿物学报》;20140630;第34卷(第2期);第3.3.2、4.1.2、4.2、5节 * |
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