CN106669960B - Technique is selected in the dissociation of coal again in a kind of coking particulate - Google Patents
Technique is selected in the dissociation of coal again in a kind of coking particulate Download PDFInfo
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- 239000003245 coal Substances 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000004939 coking Methods 0.000 title claims abstract description 25
- 238000010494 dissociation reaction Methods 0.000 title claims abstract description 25
- 230000005593 dissociations Effects 0.000 title claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 44
- 238000005188 flotation Methods 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 31
- 238000000227 grinding Methods 0.000 claims abstract description 25
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 238000004513 sizing Methods 0.000 claims abstract description 7
- 239000000047 product Substances 0.000 claims description 34
- -1 alkyl phenol Chemical compound 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 22
- 239000003921 oil Substances 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 15
- 239000004743 Polypropylene Substances 0.000 claims description 11
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 9
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 claims description 8
- 239000003350 kerosene Substances 0.000 claims description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 6
- SJWFXCIHNDVPSH-UHFFFAOYSA-N octan-2-ol Chemical compound CCCCCCC(C)O SJWFXCIHNDVPSH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 4
- 229910052592 oxide mineral Inorganic materials 0.000 claims description 4
- 229910052569 sulfide mineral Inorganic materials 0.000 claims description 4
- WUOACPNHFRMFPN-SECBINFHSA-N (S)-(-)-alpha-terpineol Chemical compound CC1=CC[C@@H](C(C)(C)O)CC1 WUOACPNHFRMFPN-SECBINFHSA-N 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- OVKDFILSBMEKLT-UHFFFAOYSA-N alpha-Terpineol Natural products CC(=C)C1(O)CCC(C)=CC1 OVKDFILSBMEKLT-UHFFFAOYSA-N 0.000 claims description 3
- 229940088601 alpha-terpineol Drugs 0.000 claims description 3
- 239000006227 byproduct Substances 0.000 claims description 3
- HPXRVTGHNJAIIH-UHFFFAOYSA-N cyclohexanol Chemical compound OC1CCCCC1 HPXRVTGHNJAIIH-UHFFFAOYSA-N 0.000 claims description 3
- 150000002170 ethers Chemical class 0.000 claims description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 3
- 150000002440 hydroxy compounds Chemical class 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 229920001470 polyketone Polymers 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- FCSHMCFRCYZTRQ-UHFFFAOYSA-N N,N'-diphenylthiourea Chemical compound C=1C=CC=CC=1NC(=S)NC1=CC=CC=C1 FCSHMCFRCYZTRQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 claims description 2
- 239000012991 xanthate Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 239000002956 ash Substances 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000010883 coal ash Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000035800 maturation Effects 0.000 abstract description 3
- 239000002245 particle Substances 0.000 description 9
- 239000003814 drug Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000006260 foam Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 4
- 235000009508 confectionery Nutrition 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 description 1
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical compound CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The present invention relates to a kind of dissociation of coal in coking particulate to select technique again, and the process of the technique includes: to carry out operation of sizing mixing to coal in particulate；It carries out throwing tail operation in advance using separation of coarse slime equipment；It is classified using classifying equipoment, the coarse-fine coal of output particulate and the coarse-fine coal of coarse grain；The coarse-fine coal of coarse grain is dissociated using coal-grinding equipment；Flotation operation is carried out to the coarse-fine coal of particulate using size mixing equipment；Ore pulp carries out roughing, output roughing cleaned coal after being sized mixing using roughing separation equipment to the coarse-fine coal of particulate；Selected, output cleaned coal is carried out to roughing cleaned coal using picking equipment.It is proposed by the present invention to select simple process flow, technology maturation, small investment, operating cost low again, remarkable in economical benefits；Not only ensure that tail coal ash content, but in ensure that simultaneously, low-ash material sufficiently dissociated；It avoids spoil and enters grinding machine, significantly reduce the load of grinding machine, reduce energy consumption, improve tail coal and smart coal yield.
Description
Technical field
The present invention relates to the dissociation for selecting coal in technology field more particularly to a kind of coking particulate again of coal to select work again
Skill.
Background technique
The present invention is based on the broken practical technique selected again of coal in coking particulate, and main purpose is the rare coking coal of recycling
Resource.
Rich coal resources in China, coal is complete, but each coal reserves differ greatly, and wherein coking coal resource reserves are not
To the one third of gross reserves.Coal average yield is 30% or more in the coking that the Oversized Coking Coal Cleaning Plant in China produces every year, this
The requirement that coking is not achieved in coal in the coking of part is used often as thermal coal, and the irrational utilization of resource results in great wave
Take, therefore studies coal dissociation in coking and select again and have great importance.
There are two types of middle coal sources, first is that being formed since sharpness of separation is not high by mispairing；Second is that low ash extract coal and inorganic mine
Object component is often with the mutually embedding cloth of superfine granularity, and coal selects needs by further dissociation again in this part.Domestic is many special
Family scholar selects again from the angle centering coal for improving sharpness of separation or dissociation and has carried out many beneficial explorations.Lv Yuting etc. is to high
Coal in jigging is individually sorted using a jigging machine when moral coal preparation plant is transformed, final clean coal yield increases 6.76 percentage points,
1,500,000 tons of feed coal meters per year, can at least increase benefit 20,000,000 yuan every year；Liu Junling etc. uses one section of two product dense medium eddy flow
Device sorts coal in jigging, and final clean coal yield is made to improve 5.39%, and increasing profit is more than 10,000,000 yuan.Zhao Wenda et al. pairs
In Wuhai coal preparation plant dense medium coal carried out dissociation selects experimental study again, using TBS to the 3-0.5mm grade in crushed product into
It has gone sorting, has obtained the cleaned coal that yield is 60%.But middle coal thinner for disseminated grain size, conventional cracking and sorting is usually
Satisfied separation results are unable to get, this kind of middle coal, which generally requires coal-grinding to thinner granularity, just can guarantee a degree of solution
From, such as after Zhang Lei is broken to coal in the dense medium of head of the horse coal preparation plant, 3-0.5mm grade sorts clean coal yield through big cone angle cyclone
Only 4.22%, therefore develop in new particulate that selecting technology is significant to the recycling of coking coal resource again for coal, it is following for dynamic
Power coal, which can be carried out selecting again for middle coal, also has certain reference.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide technique is selected in the dissociation of coal again in a kind of coking particulate, to overcome
The deficiency of the traditional technology of low ash extract coal is therefrom recycled in coal, fundamentally solving existing rare coking coal resource can not return
Receive the problem of recycling.
The purpose of the present invention is mainly achieved through the following technical solutions:
Technique is selected in the dissociation of coal again in a kind of coking particulate, and the process of the technique is as follows:
S1, operation of sizing mixing, ore pulp after coal is sized mixing in output particulate are carried out using coal size mixing equipment in particulate；
S2, sized mixing using separation of coarse slime equipment to coal in particulate after ore pulp carry out throwing tail operation in advance, output sorting is thick
Cleaned coal and sorting tail coal, sort tail coal as gangue treatment；
S3, graded operation, the coarse-fine coal of output particulate and the coarse-fine coal of coarse grain are carried out to coarse-fine coal is sorted using classifying equipoment；
S41, dissociation operation carried out to the coarse-fine coal of coarse grain using coal-grinding equipment, product and is recycled after output mill；
S42, the coarse-fine coal of particulate is mixed with floating agent, operation of sizing mixing is carried out to mixture using size mixing equipment,
Ore pulp after the coarse-fine coal of output particulate is sized mixing；
S5, sized mixing using roughing separation equipment to the coarse-fine coal of particulate after ore pulp carry out roughing operation, output roughing cleaned coal and roughing
Tail coal；
S6, selected operation, output cleaned coal and selected tail coal are carried out to roughing cleaned coal using picking equipment.
Sorting coarse-fine coal is the cleaned coal for needing to be further processed that sorting obtains, and sorting tail coal is used directly as spoil,
Not think have the value for being further processed obtained cleaned coal.The coarse-fine coal of particulate is the lesser coarse-fine coal of partial size obtained after being classified,
Since its partial size is smaller, thus it can directly carry out flotation operation；The coarse-fine coal of coarse grain is that obtained partial size is biggish thick after classification
Cleaned coal should not directly carry out flotation operation since its partial size is larger, and may contain more spoil in particle, thus need
It is further crushed, becomes the lesser particle of partial size, repeat graded operation, remove the impurity such as spoil therein, at
It is further selected in progress for the coarse-fine coal of particulate.
Coal-grinding equipment is short body rod mill or short body autogenous tumbling mill；
The recycling mode of product is as follows after opposite grinding:
After mill product meet simultaneously density level less than 1.6kg/L, yield less than 10%, ash content lower than 70% when, be back to
Process S3 carries out graded operation using product after classifying equipoment opposite grinding, and is sequentially completed process S41, S42, S5, S6；Otherwise, it returns
Be back to process S2, using product after separation of coarse slime equipment opposite grinding carry out throw tail operation, and be sequentially completed process S3, S41, S42,
S5、S6。
Roughing tail coal is mixed with selected tail coal, output tail coal.
Coal size mixing equipment is agitator in particulate；Agitator uses BGT series surface modification pulp mixing machine；
Separation of coarse slime equipment is spiral；Spiral uses high weir spiral classifier or sinking spiral
Grader；
Size mixing equipment is action of forced stirring device；
Roughing separation equipment is flotation device；
Picking equipment is flotation column；
Classifying equipoment is vibration sieve bend, slot size 0.5-1mm, to guarantee that screenings granularity is being suitable for the model of flotation
In enclosing；
Floating agent includes collecting agent and foaming agent.
Collecting agent includes: sulfide mineral collector, oxide mineral collector, oils collecting agent；
Sulfide mineral collector includes: alkyl xanthates, dialkyl thiophosphate, rhenocure CA；
Oxide mineral collector includes: sodium soap, quaternary ammonium salt, fatty amine；
Oils collecting agent includes: kerosene, diesel oil.
Foaming agent includes hydroxy compounds, ethers, ketone.
The raw material of floating agent and by total weight percent proportion be following one of which:
After smart X oil 20%-30% is mixed with kerosene 65%-75%, alkyl phenol polyoxyethylene ether 1%-2%, methyl is added
Isobutyl carbinol 1%-2%, glycol polypropylene 1%-2%；
After sec-octyl alcohol 25%-35% is mixed with kerosene 60%-70%, alkyl phenol polyoxyethylene ether 1%-2%, methyl is added
Isobutyl carbinol 1%-2%, glycol polypropylene 1%-2%；
After sec-octyl alcohol 15%-25% is mixed with α-terpineol 70%-80%, addition alkyl phenol polyoxyethylene ether 1%-2%,
Methyl isobutyl carbinol 1%-2%, glycol polypropylene 1%-2%.
Smart X oil is industrial products X oil refinement product, main component be molecule in containing there are four or five carbon atoms ketone
Type organic.
X oil is that industry prepares the by-product of cyclohexanone by cyclohexane oxidation, group mainly contain cyclohexanol, two polyketone,
Adipic acid cyclohexyl, oligomer.
Alkyl phenol polyoxyethylene ether is ethers foam improver, methyl isobutyl carbinol, glycol polypropylene, glycol polypropylene
For hydroxy compound species foam improver.
Smart X oil is industrial products X oil refinement product, main component be molecule in containing there are four or five carbon atoms ketone
Type organic.X oil is the by-product that industry prepares cyclohexanone by cyclohexane oxidation, and component is extremely complex, contains more than 20 kinds
Substance mainly contains cyclohexanol and accounts for 3.0%；Two polyketone (cyclohexyl ring hexanone+cyclohexenyl hexamethylene ketone) account for 39.9%；Adipic acid
Cyclohexyl accounts for 8.7%；There are also some other oligomer to account for 50%.
The present invention has the beneficial effect that:
1, the invention proposes coals in a kind of flotation based on the broken dissociation of middle coal to select technique again, realizes to rare refining
Effective recycling of coking coal resource.
2, spiral separating density is higher, can be thrown in advance under its best separating density except a part is through broken dissociation
High ash material out, not only ensure that tail coal ash content, but also avoided spoil simultaneously and enter grinding machine, significantly reduce the negative of grinding machine
Lotus reduces energy consumption, alleviates the pollution after high ash material is ground to subsequent flotation operation.
3, the quick pan feeding of short body grinding machine, quick discharge, not only ensure that in, low-ash material sufficiently dissociated, but also not
It is unfavorable for the overground phenomenon of subsequent flotation operation as generation.
4, the action of forced stirring device of flotation operation can be fully dispersed by medicament, raising pharmacy effect effect, and due to
To the scrubbing action of coal particle surface, thin mud the cover acts on to be mitigated significantly for high shear.
5, floating agent is mixed with by various medicaments, and the foaming effect of confection is obviously due to being used alone a kind of medicine
Effect of the agent as floating agent: under the same terms, it is much higher than using the foam height of confection unit volume using independent
The foam height of medicament；Under the same terms, what the service life of the foam generated using confection was generated compared to a kind of individually medicament
The longer life expectancy of foam.
6, roughing operation ensures that the recycling of low ash particle, selected operation ensure that flotation is selected using flotation column using flotation device
Selecting property.
7, proposed by the present invention to select simple process flow, technology maturation, small investment, operating cost low again, economic benefit is aobvious
It writes.
Other features and advantages of the present invention will illustrate in the following description, also, partial become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Fig. 1 selects process flow chart to be of the present invention again.
Fig. 2 is the equipment schematic diagram of the present invention for selecting technique again.
In Fig. 2, coal in 1 particulate, ore pulp after coal is sized mixing in 2 particulates, 3 sorting tail coals, the 4 coarse-fine coals of sorting, 5 coarse grain are coarse-fine
Coal, 6 mill after product, the coarse-fine coal of 7 particulates, 8 floating agents, ore pulp after the coarse-fine coal of 9 particulates is sized mixing, 10 roughing cleaned coal, 11 cleaned coal, 12
Tail coal, A agitator, B spiral, C vibration sieve bend, the short body rod mill of D, E action of forced stirring device, F flotation device, G flotation
Column.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention.
Embodiment one
As shown in Fig. 2, of the invention specifically selects process flow as follows again
S1, by granularity, coal 1 (raw material) feeds agitator A by feed pump (being not drawn into figure) in 3mm particulate below
It sizes mixing, ore pulp 2 after coal is sized mixing in output particulate.
S2, coal in particulate is sized mixing after ore pulp 2 feed spiral B carry out spiral throw tail operation, output high ash spoil
Particle output and retains the coarse-fine coal 4 of sorting as sorting tail coal 3；The ash content of sorting tail coal 3 can reach 70% or so, make
For gangue treatment.
S3, it coarse-fine coal 4 will be sorted feeds vibration sieve bend C and carry out graded operation, the slot size of vibration sieve bend is
0.5mm, for partition size about between 0.25-1mm, oversize is the coarse-fine coal 5 of coarse grain, and screenings is the coarse-fine coal 7 of particulate.
S41, the coarse-fine coal 5 of coarse grain is fed to short body rod mill D progress coal-grinding dissociation, product 6 after output mill passes through control and grinds
The coal time, so that product 6 in 0.5mm or less but is unlikely to that overground phenomenon occurs after mill.Product meets density level simultaneously after mill
Less than 1.6kg/L, yield less than 10%, ash content be lower than 70% when, be back to process S3, using product after classifying equipoment opposite grinding into
Row graded operation, and it is sequentially completed process S41, S42, S5, S6；Otherwise, it is back to process S2, uses separation of coarse slime equipment pair
Product carries out throwing tail operation after mill, and is sequentially completed process S3, S41, S42, S5, S6.
S42, the coarse-fine coal 7 of particulate and floating agent 8 are fed action of forced stirring device E and carries out operation of sizing mixing, output particulate is thick
Ore pulp 9 after cleaned coal is sized mixing.
S5, the coarse-fine coal of particulate is sized mixing after ore pulp 9 feed flotation device F and carry out roughing operation first, pan feeding pulp density is
80g/L, the roughing cleaned coal 10 and roughing tail coal for being 14-15% through flotation device F roughing output ash content.
S6, roughing cleaned coal 10 is fed to the selected operation of flotation column G progress, output cleaned coal 11 and selected tail coal, cleaned coal 11 is most
Whole ash content is 12.5% or so, and selected tail coal mixes output tail coal 12 with roughing tail coal.
Floating agent uses mass percent: after smart X oil 25% is mixed with kerosene 70%, alkyl phenol polyoxyethylene ether is added
1%, methyl isobutyl carbinol 2%, glycol polypropylene 2%.
Embodiment two
As shown in Fig. 2, of the invention specifically selects process flow as follows again
S1, by granularity, coal 1 (raw material) feeds agitator A by feed pump (being not drawn into figure) in 3mm particulate below
It sizes mixing, ore pulp 2 after coal is sized mixing in output particulate.
S2, coal in particulate is sized mixing after ore pulp 2 feed spiral B carry out spiral throw tail operation, output high ash spoil
Particle output and retains the coarse-fine coal 4 of sorting as sorting tail coal 3；It sorts tail coal 3 and is used as gangue treatment.
S3, it coarse-fine coal 4 will be sorted feeds vibration sieve bend C and carry out graded operation, the slot size of vibration sieve bend is
0.7mm, for partition size about between 0.25-1mm, oversize is the coarse-fine coal 5 of coarse grain, and screenings is the coarse-fine coal 7 of particulate.
S41, the coarse-fine coal 5 of coarse grain is fed to short body rod mill D progress coal-grinding dissociation, product 6 after output mill passes through control and grinds
The coal time, so that product 6 in 0.5mm or less but is unlikely to that overground phenomenon occurs after mill.Product meets density level simultaneously after mill
Less than 1.6kg/L, yield less than 10%, ash content be lower than 70% when, be back to process S3, using product after classifying equipoment opposite grinding into
Row graded operation, and it is sequentially completed process S41, S42, S5, S6；Otherwise, it is back to process S2, uses separation of coarse slime equipment pair
Product carries out throwing tail operation after mill, and is sequentially completed process S3, S41, S42, S5, S6.
S42, the coarse-fine coal 7 of particulate and floating agent 8 are fed action of forced stirring device E and carries out operation of sizing mixing, output particulate is thick
Ore pulp 9 after cleaned coal is sized mixing.
S5, the coarse-fine coal of particulate is sized mixing after ore pulp 9 feed flotation device F and carry out roughing operation first, pan feeding pulp density is
80g/L, the roughing cleaned coal 10 and roughing tail coal for being 14-15% through flotation device F roughing output ash content.
S6, roughing cleaned coal 10 is fed to the selected operation of flotation column G progress, output cleaned coal 11 and selected tail coal, cleaned coal 11 is most
Whole ash content is 12.5% or so, and selected tail coal mixes output tail coal 12 with roughing tail coal.
Floating agent uses mass percent: after sec-octyl alcohol 30% is mixed with kerosene 65%, alkylphenol-polyethenoxy is added
Ether 2%, methyl isobutyl carbinol 1%, glycol polypropylene 2%.
Embodiment three
As shown in Fig. 2, of the invention specifically selects process flow as follows again
S1, by granularity, coal 1 (raw material) feeds agitator A by feed pump (being not drawn into figure) in 3mm particulate below
It sizes mixing, ore pulp 2 after coal is sized mixing in output particulate.
S2, coal in particulate is sized mixing after ore pulp 2 feed spiral B carry out spiral throw tail operation, output high ash spoil
Particle output and retains the coarse-fine coal 4 of sorting as sorting tail coal 3；It sorts tail coal 3 and is used as gangue treatment.
S3, it coarse-fine coal 4 will be sorted feeds vibration sieve bend C and carry out graded operation, the slot size of vibration sieve bend is
1mm, for partition size about between 0.25-1mm, oversize is the coarse-fine coal 5 of coarse grain, and screenings is the coarse-fine coal 7 of particulate.
S41, the coarse-fine coal 5 of coarse grain is fed to short body rod mill D progress coal-grinding dissociation, product 6 after output mill passes through control and grinds
The coal time, so that product 6 in 0.5mm or less but is unlikely to that overground phenomenon occurs after mill.Product meets density level simultaneously after mill
Less than 1.6kg/L, yield less than 10%, ash content be lower than 70% when, be back to process S3, using product after classifying equipoment opposite grinding into
Row graded operation, and it is sequentially completed process S41, S42, S5, S6；Otherwise, it is back to process S2, uses separation of coarse slime equipment pair
Product carries out throwing tail operation after mill, and is sequentially completed process S3, S41, S42, S5, S6.
S42, the coarse-fine coal 7 of particulate and floating agent 8 are fed action of forced stirring device E and carries out operation of sizing mixing, output particulate is thick
Ore pulp 9 after cleaned coal is sized mixing.
S5, the coarse-fine coal of particulate is sized mixing after ore pulp 9 feed flotation device F and carry out roughing operation first, pan feeding pulp density is
80g/L, the roughing cleaned coal 10 and roughing tail coal for being 14-15% through flotation device F roughing output ash content.
S6, roughing cleaned coal 10 is fed to the selected operation of flotation column G progress, output cleaned coal 11 and selected tail coal, cleaned coal 11 is most
Whole ash content is 12.5% or so, and selected tail coal mixes output tail coal 12 with roughing tail coal.
Floating agent uses mass percent: after sec-octyl alcohol 23% is mixed with α-terpineol 73%, alkyl phenol polyoxy is added
Vinethene 1.5%, methyl isobutyl carbinol 1.5%, glycol polypropylene 1%.
In conclusion the embodiment of the invention provides a kind of dissociation of coal in coking particulate to select technique again, this selects the work to be again
The effective recycling of coal selected technique again, realize to rare coking coal resource in a kind of flotation of the skill based on the broken dissociation of middle coal；
This selects simple process flow, technology maturation, small investment, operating cost low again, remarkable in economical benefits.In addition, spiral point
Select density is higher (usually in 1.6Kg/L or more), can throw under its best separating density and dissociate except a part through broken in advance
High ash material, not only ensure that tail coal ash content, but also avoid spoil simultaneously and enter grinding machine, and significantly reduced the load of grinding machine,
Energy consumption is reduced, the pollution after high ash material is ground to subsequent flotation operation is alleviated；Short body grinding machine (autogenous tumbling mill or rod milling
Machine) quickly pan feeding, quick discharge, not only ensure that in, low-ash material sufficiently dissociated, but also be unlikely to generate be unfavorable for after
The overground phenomenon of continuous flotation operation；Bulk flotation medicament not only increases the amount of expansion of floatation process, also increases foam
Service life；The action of forced stirring device of flotation operation can be fully dispersed by medicament, improves pharmacy effect effect, and due to high shear
To the scrubbing action of coal particle surface, the effect of thin mud the cover mitigates significantly；Roughing operation ensures low ash particle using flotation device
Recycling, selected operation ensures flotation selectivity using flotation column.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (6)
1. technique is selected in the dissociation of coal again in a kind of coking particulate, which is characterized in that the process of the technique is as follows:
S1, operation of sizing mixing, ore pulp after coal is sized mixing in output particulate are carried out using coal size mixing equipment in particulate；
S2, sized mixing using separation of coarse slime equipment to coal in the particulate after ore pulp carry out throwing tail operation in advance, output sorting is thick
Cleaned coal and sorting tail coal, sort tail coal as gangue treatment；
S3, graded operation, the coarse-fine coal of output particulate and the coarse-fine coal of coarse grain are carried out to the coarse-fine coal of sorting using classifying equipoment；
S41, dissociation operation carried out to the coarse-fine coal of the coarse grain using coal-grinding equipment, product and is recycled after output mill；
S42, the coarse-fine coal of the particulate is mixed with floating agent, mixture is carried out using particulate coarse-fine coal size mixing equipment
It sizes mixing operation, ore pulp after the coarse-fine coal of output particulate is sized mixing；
S5, sized mixing using roughing separation equipment to the coarse-fine coal of the particulate after ore pulp carry out roughing operation, output roughing cleaned coal and roughing
Tail coal；
S6, selected operation, output cleaned coal and selected tail coal are carried out to the roughing cleaned coal using picking equipment；
The floating agent includes collecting agent and foaming agent；
The collecting agent includes: sulfide mineral collector, oxide mineral collector, oils collecting agent；
The sulfide mineral collector includes: alkyl xanthates, dialkyl thiophosphate, rhenocure CA；
The oxide mineral collector includes: sodium soap, quaternary ammonium salt, fatty amine；
The oils collecting agent includes: kerosene, diesel oil；
The foaming agent includes hydroxy compounds, ethers, ketone；
The raw material of the floating agent and by total weight percent proportion be following one of which:
Smart X oil 20%-30%, kerosene 65%-75%, alkyl phenol polyoxyethylene ether 1%-2%, methyl isobutyl carbinol 1%-
2%, glycol polypropylene 1%-2%；
Sec-octyl alcohol 25%-35%, kerosene 60%-70%, alkyl phenol polyoxyethylene ether 1%-2%, methyl isobutyl carbinol 1%-
2%, glycol polypropylene 1%-2%；
Sec-octyl alcohol 15%-25%, α-terpineol 70%-80%, alkyl phenol polyoxyethylene ether 1%-2%, methyl isobutyl carbinol
1%-2%, glycol polypropylene 1%-2%.
2. technique is selected in the dissociation of coal again in coking particulate according to claim 1, which is characterized in that the coal-grinding equipment is
Short body rod mill or short body autogenous tumbling mill；
It is as follows to the recycling mode of product after the mill:
After the mill product meet simultaneously density level less than 1.6kg/L, yield less than 10%, ash content lower than 70% when, be back to
The process S3 carries out graded operation using product after classifying equipoment opposite grinding, and is sequentially completed process S41, S42, S5, S6；It is no
Then, it is back to the process S2, carries out throwing tail operation using product after separation of coarse slime equipment opposite grinding, and be sequentially completed process
S3、S41、S42、S5、S6。
3. technique is selected in the dissociation of coal again in coking particulate according to claim 1, which is characterized in that by the roughing tail coal
It is mixed with selected tail coal, output tail coal.
4. technique is selected in the dissociation of coal again in coking particulate according to claim 1, which is characterized in that coal tune in the particulate
Slurry equipment is agitator；The agitator uses BGT series surface modification pulp mixing machine；
The separation of coarse slime equipment is spiral；The spiral uses high weir spiral classifier or sinking
Spiral classifier；
The coarse-fine coal size mixing equipment of particulate is action of forced stirring device；
The roughing separation equipment is flotation device；
The picking equipment is flotation column；
The classifying equipoment is vibration sieve bend, slot size 0.5-1mm, to guarantee that screenings granularity is being suitable for the model of flotation
In enclosing.
5. technique is selected in the dissociation of coal again in coking particulate according to claim 1, which is characterized in that the essence X oil is work
Industry product X oil refinement product, main component be molecule in containing there are four or five carbon atoms ketone organic matter.
6. technique is selected in the dissociation of coal again in coking particulate according to claim 5, which is characterized in that the X oil is industry
Prepare the by-product of cyclohexanone by cyclohexane oxidation, group mainly contains cyclohexanol, two polyketone, adipic acid cyclohexyl, oligomeric
Object.
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Families Citing this family (7)
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| CN107252735B (en) * | 2017-06-21 | 2018-12-14 | 中南大学 | A kind of sulfide flotation composite collector and its preparation method and application |
| CN108246493B (en) * | 2018-01-22 | 2020-07-31 | 西安科技大学 | Comprehensive utilization process for reducing oil shale ash content |
| CN109078747A (en) * | 2018-06-26 | 2018-12-25 | 山西天地王坡煤业有限公司 | The method and device of coarse-fine coal classification production |
| CN109174463B (en) * | 2018-08-21 | 2020-02-28 | 中国矿业大学 | Collecting agent for flotation of oxidized coal slime, preparation method and flotation method |
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| CN113426584A (en) * | 2021-07-02 | 2021-09-24 | 中国矿业大学 | Ore grinding-flotation system and method for enriching coal rock micro-components |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4802976A (en) * | 1988-01-04 | 1989-02-07 | Miller Francis G | Method for recovering fine clean coal |
| CA2214518A1 (en) * | 1995-03-08 | 1996-09-12 | Markku Elias Kuusisto | Method for grinding of granular material and grinding equipment |
| CN103831164A (en) * | 2014-02-24 | 2014-06-04 | 太原理工大学 | Gravity-flotation joint separation technology for coking middlings |
| CN104437831A (en) * | 2014-11-03 | 2015-03-25 | 中国矿业大学 | Gravity separation middling coal separation technology |
| CN104525358A (en) * | 2014-12-22 | 2015-04-22 | 纪玉华 | Process of coarse coal slime back washing in pre-desliming dense medium cyclone sorting |
-
2016
- 2016-06-20 CN CN201610443561.8A patent/CN106669960B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4802976A (en) * | 1988-01-04 | 1989-02-07 | Miller Francis G | Method for recovering fine clean coal |
| CA2214518A1 (en) * | 1995-03-08 | 1996-09-12 | Markku Elias Kuusisto | Method for grinding of granular material and grinding equipment |
| WO1996027443A1 (en) * | 1995-03-08 | 1996-09-12 | Valtion Teknillinen Tutkimuskeskus | Method for grinding of granular material and grinding equipment |
| CN103831164A (en) * | 2014-02-24 | 2014-06-04 | 太原理工大学 | Gravity-flotation joint separation technology for coking middlings |
| CN104437831A (en) * | 2014-11-03 | 2015-03-25 | 中国矿业大学 | Gravity separation middling coal separation technology |
| CN104525358A (en) * | 2014-12-22 | 2015-04-22 | 纪玉华 | Process of coarse coal slime back washing in pre-desliming dense medium cyclone sorting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947524A (en) * | 2019-12-11 | 2020-04-03 | 乌海市广纳洗煤有限公司 | Coal washing and sorting method |
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