CN105665124B - High intergrowth high ash sulphur coal sorts slurrying integral process - Google Patents
High intergrowth high ash sulphur coal sorts slurrying integral process Download PDFInfo
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- CN105665124B CN105665124B CN201610226849.XA CN201610226849A CN105665124B CN 105665124 B CN105665124 B CN 105665124B CN 201610226849 A CN201610226849 A CN 201610226849A CN 105665124 B CN105665124 B CN 105665124B
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- 239000003245 coal Substances 0.000 title claims abstract description 169
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000005864 Sulphur Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 59
- 238000002156 mixing Methods 0.000 claims abstract description 56
- 238000005188 flotation Methods 0.000 claims abstract description 40
- 239000003250 coal slurry Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000004513 sizing Methods 0.000 claims abstract description 13
- 230000003750 conditioning effect Effects 0.000 claims abstract description 12
- 239000000654 additive Substances 0.000 claims abstract description 10
- 230000000996 additive effect Effects 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 238000010494 dissociation reaction Methods 0.000 claims abstract description 4
- 230000005593 dissociations Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 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
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Paper (AREA)
Abstract
A kind of high intergrowth high ash sulphur coal sorting slurrying integral process, uses suitable for minerals separation technical field.1mm classification is carried out ,+1mm material feeds mixing pond, sorts to obtain cleaned coal I, middle coal I and spoil I by two section of two product heavy-medium cyclone, coal I in broken, operation of sizing mixing is carried out to the middle coal II after dissociation, material is fed after sizing mixing is sorted through flotation device I, obtains cleaned coal II and tail coal I；It isolates and enters mixing pond I less than 1mm material, carry out 0.2mm classification, the 1-0.2mm material separated squeezes into autogenous medium cyclone and sorted to obtain cleaned coal III and spoil II；The 0.2mm material that is less than isolated feeds kaskad apparatus for pre-flotation pulp conditioning and obtains ore pulp, and ore pulp feeds flotation device II and obtains cleaned coal IV and tail coal II；Stirring to obtain product mix feeds filter pulp system after all cleaned coal V are added water and high efficiency complex additive, removes output water-coal-slurry after impurity.Which reduce energy consumption, reduce the pollution to environment, remarkable in economical benefits.
Description
Technical field
The present invention relates to a kind of high ash sulphur coal to sort slurrying integral process, is particularly suitable for minerals separation technical field
Used in high intergrowth high ash sulphur coal sort slurrying integral process.
Background technique
Present invention design is to sort slurrying practical technique based on high intergrowth high ash sulphur coal, mainly that high intergrowth is high
The sorting of grey sulphur coal and the production technology of water-coal-slurry combine, and not only increase the recycling of high intergrowth high ash sulphur coal
And eliminate the ore grinding in original coal water slurry process system and be crushed link, the process system of water-coal-slurry is simplified, energy is reduced
Consumption.
With a large amount of exploitations of coal in China, opened from original superficial part seam mining and low-sulfur coal in China's coal field development
The exploitation for turning to deep layer high-sulfur dirty coal is adopted, current China contains a large amount of high-sulfur dirty coal, and minable coal seam high ash is high
The ratio of sulphur coal accounted for is very big, and the development ratio of sulphur coal is bigger.Therefore a large amount of height can be sub-elected in coal preparation plant's assorting room
The coal slime of sulphur high ash, these coal slimes can not be used directly since the high combustion of sulfur of high ash can generate pernicious gas pollution environment,
In order to improve coal comprehensive utilization efficiency, need further progress to sort and be used high ash sulphur coal, do not have also at present
There is the complete process system of the relatively broad sorting processing and utilization for high ash sulphur coal, a large amount of high ash sulphur coal does not have
The utilization of further high-efficiency environment friendly is obtained, therefore is a technical problem to the sorting processing and utilization of high ash sulphur coal.
As a kind of novel, efficient, cleaning, novel Coal-based Liquid Fuel, water-coal-slurry is a kind of coal dust by 65%-70%,
The coal base liquid fuel of the high-efficiency and low-pollution of the water of 29%-30% and the chemical addition agent composition less than 1%.Water-coal-slurry conduct
The raw material of excellent fuel and gasification, the yield of water-coal-slurry will be with the development of domestic industry technology and the hair of gasification technology
Exhibition, the demand of water-coal-slurry will also further increase.But due to a large amount of exploitation of domestic fat coal consumption and fat coal
Reserves are reduced year by year, in addition the water-coal-slurry equal each side factor that the cost is relatively high, water-coal-slurry mass production are restricted.
Currently, coal is still the main energy sources of Chinese society and industrial development, 70% of non-renewable energy or so is accounted for, in future
In quite long period, the principal status of public economy of the coal in China's energy resource structure will not change.On the one hand, a large amount of exploitations of fat coal
And consumption, the amount of adopting of fat coal are reduced, the content of high ash sulphur coal increases.There are no to this part high ash high-sulfur at this stage
The technique for sorting reprocessing, high ash sulphur coal are not fully utilized.On the other hand, at present the processing technology cost of water-coal-slurry compared with
Height, wherein the energy consumption of ore grinding part accounts for entire energy consumption a big chunk ratio, and the cost for reducing water-coal-slurry product is also present water
One problem of coal slurry technology.
Summary of the invention
In view of the above technical problems, a kind of simple process is provided, solves the recycling of high intergrowth high ash sulphur coal
The problem of, the efficiency of the comprehensive utilization of coal is improved, energy consumption is reduced, reduces the pollution to environment, remarkable in economical benefits
High intergrowth high ash sulphur coal sorting process.
To realize the above-mentioned technical purpose, high intergrowth high ash sulphur coal of the invention sorts slurrying integral process, step
It is rapid as follows: high intergrowth high ash sulphur coal, which is fed, to classifying screen carries out 1mm classification, the material more than 1mm, i.e.+1mm material quilt
It isolates and feeds mixing pond ,+1mm the material for feeding mixing pond feeds two section of two product heavy-medium cyclone ,+1mm by pump I
Material sorts to obtain cleaned coal I, middle coal I and spoil I by two section of two product heavy-medium cyclone, is obtained using crusher to sorting
Middle coal I carry out selective crushing operation, be crushed middle coal I again and sufficiently dissociate, using kaskad apparatus for pre-flotation pulp conditioning in after dissociation
Coal II carries out operation of sizing mixing, and material is fed after the middle coal obtained after operation of sizing mixing is sized mixing sorts through flotation device I, through flotation
Sorting obtains cleaned coal II and tail coal I under machine I and ore pulp circulating pump collective effect；
It is isolated by gradation sizing grade less than 1mm material, i.e. the material of -1mm then enters mixing pond I, in mixing pond I
The material of -1mm classification vortex sieve fed by pump III carry out 0.2mm classification, the 1-0.2mm material being classified out feeds mixing
Pond II, the 1-0.2mm material in mixing pond II are squeezed into autogenous medium cyclone by pump II and are sorted, and cleaned coal III and cash are obtained
II two kinds of products of stone；The material less than 0.2mm isolated, the i.e. material of -0.2mm feed and obtain after kaskad apparatus for pre-flotation pulp conditioning is sized mixing
To ore pulp, the ore pulp after sizing mixing feeds the sorting of flotation device II and obtains cleaned coal IV and tail coal II；All cleaned coal sub-elected are fed
Blender, and stirring to obtain product mix feeds filter pulp system after adding water and high efficiency complex additive, is gone using filter pulp system
Except impurity output water coal slurry.
The cleaned coal that obtained cleaned coal IV and autogenous medium hydrocyclone sub-elect is sorted through flotation device II in all cleaned coal
III does not feed blender, and middle coal II is fed ore pulp standard by the middle coal II that middle coal I, cleaned coal III and cleaned coal IV are formed after being crushed jointly
Material after coal is sized mixing in standby device generation, material is fed after coal in generation is sized mixing sorts through flotation device I, through I He of flotation device
Sorting obtains cleaned coal II and tail coal I under ore pulp circulating pump collective effect, and cleaned coal II and cleaned coal I feed blender, adds water and height
Stirring to obtain product mix after effect compound additive.
The utility model has the advantages that
The preparation process of sorting and water-coal-slurry to high intergrowth high ash sulphur coal is combined；It realizes to high adhesion
The secondary sorting of body high ash sulphur coal utilizes, and improves the comprehensive utilization ratio of coal resources；Improve high intergrowth high ash high-sulfur
The recycling of coal useful resources decreases ore grinding energy consumption simultaneously, and the ore grinding in assorting room eliminates in water-coal-slurry link
Ore grinding operation, the simple production process power consumption relative to traditional coal-water-slurry is small, and operating cost is low, remarkable in economical benefits；Due to
It is not broken to the sorting cleaned coal of two section of two product heavy-medium cyclone in sorting, it can achieve and taken with the thickness of other products
Match, realize the packing efficiency of preferable water-coal-slurry endoparticle, reaches preferable gradation effect.
Detailed description of the invention
Fig. 1 is the high intergrowth high ash sulphur coal sorting slurrying integral process flow diagram of the embodiment of the present invention one；
Fig. 2 is the equipment signal that the high intergrowth high ash sulphur coal of the embodiment of the present invention one sorting slurrying integral process uses
Figure；
Fig. 3 is the high intergrowth high ash sulphur coal sorting slurrying integral process flow diagram of the embodiment of the present invention two；
Fig. 4 is the equipment signal that the high intergrowth high ash sulphur coal of the embodiment of the present invention two sorting slurrying integral process uses
Figure.
In figure: A- vibrating screen, B- mixing pond, C- pump I, D-, two section of two product heavy-medium cyclone, E- crusher, F- ore pulp
Prepare device, G- flotation device I, H- ore pulp circulating pump, I- valve, J- mixing pond I, K- classification vortex sieve, L- mixing pond II, M- pump
II, N- autogenous medium hydrocyclone, O- kaskad apparatus for pre-flotation pulp conditioning, P- flotation device II, Q- circulating pump, R- agitator, S- filter pulp system,
T- pump III, 1- high intergrowth high ash sulphur coal, 2-+1mm material, 3- cleaned coal I, coal I in 4-, 5- spoil I, coal II in 6-, in 7-
Material after coal is sized mixing, 8- cleaned coal II, 9- tail coal I, the material of 10--1mm, 11-1-0.2mm material, 12- cleaned coal III, 13- spoil
The material of II, 14--0.2mm, 15- ore pulp, 16- cleaned coal IV, 17- tail coal II, 18- cleaned coal, 19- product mix, 20- are efficiently multiple
Close additive, 21- impurity, 22- water-coal-slurry.
Specific embodiment
Embodiment is described further with reference to the accompanying drawing:
As depicted in figs. 1 and 2, high intergrowth high ash sulphur coal of the invention sorts slurrying integral process, and step is such as
Under:
High intergrowth high ash sulphur coal 1, which is fed, to classifying screen A carries out 1mm classification, the material more than 1mm, i.e.+1mm object
Material 2, which is separated, feeds mixing pond B, and+1mm the material 2 for feeding mixing pond B feeds two section of two product dense medium cyclone by I C of pump
Device D is flowed ,+1mm material 2 sorts to obtain cleaned coal I 3, middle coal I 4 and spoil I 5 by two section of two product heavy-medium cyclone D, utilizes
Crusher E carries out selective crushing operation to the middle coal I 4 that sorting obtains, and is crushed middle coal I 4 again and sufficiently dissociates, utilizes ore pulp
Prepare device F operation of sizing mixing is carried out to the middle coal II 6 after dissociation, after the middle coal obtained after operation of sizing mixing is sized mixing material 7 feed through
I G of flotation device is sorted, and obtains cleaned coal II 8 and tail coal I 9 through sorting under I G of flotation device and ore pulp circulating pump H collective effect；
It is isolated by classifying screen A less than 1mm material 10, i.e. the material 10 of -1mm then enters I J of mixing pond, mixes
The material 10 of -1mm in I J of material pond feeds classification vortex sieve K progress 0.2mm classification, the 1-0.2mm being classified out by pumping III T
Material 11 feeds II L of mixing pond, 1-0.2mm material 11 in II L of mixing pond by II M of pump squeeze into autogenous medium cyclone N into
Row sorting, obtains II 13 two kinds of products of cleaned coal III 12 and spoil；The material less than 0.2mm isolated, the i.e. object of -0.2mm
Material 14, which is fed after kaskad apparatus for pre-flotation pulp conditioning O is sized mixing, obtains ore pulp 15, and the ore pulp 15 after sizing mixing feeds II P of flotation device and sorts to obtain essence
Coal IV 16 and tail coal II 17；All cleaned coal 18 sub-elected are fed into blender R, and after adding water and high efficiency complex additive 20
Stirring to obtain product mix 19 feeds filter pulp system S, removes 21 output water-coal-slurry 22 of impurity using filter pulp system S.
The cleaned coal IV 16 and autogenous medium hydrocyclone N sorted in all cleaned coal 18 through II P of flotation device sub-elects
Cleaned coal III 12 do not feed blender R, the middle coal II 6 formed after middle coal I 4, cleaned coal III 12 and cleaned coal IV 16 are jointly broken, will in
Coal II 6 feed kaskad apparatus for pre-flotation pulp conditioning F generate in coal size mixing after material 7, after coal in generation is sized mixing material 7 feed through I G of flotation device into
Row sorting obtains cleaned coal II 8 and tail coal I 9, cleaned coal II 8 and cleaned coal through sorting under I G of flotation device and ore pulp circulating pump H collective effect
I 3 feed blender R, add stirring to obtain product mix 19 after water and high efficiency complex additive 20.
1. -1mm screenings-vortex sieve,-floatation clean coal and autogenous medium cyclone cleaned coal-sizes mixing-flotation-water processed
Coal slurry: -1mm screenings 10 enters I J of mixing pond and carries out 0.2mm classification, 1-0.2mm object by classification vortex sieve K by III T of pump
Material 11 is squeezed into autogenous medium cyclone N by II M of pump into II L of mixing pond and is sorted, and sorting obtains cleaned coal III 12 and spoil
The material 14 of II 13 two parts products, -0.2mm is sized mixing by kaskad apparatus for pre-flotation pulp conditioning O, and flotation device II is entered after the ore pulp 15 after sizing mixing
P, sorting obtain cleaned coal IV 16 and tail coal II 17.The cleaned coal III 12 and flotation device II that autogenous medium hydrocyclone is sorted
It sorts obtained cleaned coal IV 16 while entering kaskad apparatus for pre-flotation pulp conditioning F and size mixing, and size mixing with the broken middle coal of two section of two product
Material 7 enters I G of flotation device jointly and is sorted afterwards.By I G of the flotation device cleaned coal II 8 sorted and heavy medium cyclone point
The cleaned coal I 3 of choosing obtains product mix 19 after blender R stirring by a certain amount addition water and high efficiency complex additive 20
Impurity 21, output water-coal-slurry 22 are removed into filter pulp system S.
2. -1mm screenings-vortex sieve-floatation clean coal and autogenous medium cyclone cleaned coal-water-coal-slurry processed.- 1mm material
Separation operation: after being classified by vibrating screen to high intergrowth high ash sulphur coal, screenings enter cyclone classification sieve carry out two
Secondary classification, partition size 0.2mm.- 1mm screenings 10 enters mixing pond J and carries out 0.2mm points by vortex sieve K by pump T
Grade, 1-0.2mm material 11 are squeezed into autogenous medium cyclone N by II M of pump into II L of mixing pond and are sorted, and sorting obtains essence
II 13 two parts product of coal III 12 and spoil.The material 14 of -0.2mm is sized mixing by kaskad apparatus for pre-flotation pulp conditioning O, after the ore pulp 15 after sizing mixing
Into II P of flotation device, sorting obtains cleaned coal IV 16 and tail coal II 17.And with the cleaned coal II 8 sorted by I G of flotation device and
The cleaned coal I 3 of heavy medium cyclone sorting is by a certain amount addition water and high efficiency complex additive 20, after agitator R stirring
It obtains product mix 19 and enters filter pulp system S removal impurity 21, output water-coal-slurry 22.
Claims (2)
1. a kind of high intergrowth high ash sulphur coal sorts slurrying integral process, it is characterised in that steps are as follows: to classifying screen (A)
Feed high intergrowth high ash sulphur coal (1) and carry out 1mm classification, the material more than 1mm, i.e.+1mm material (2) be separated to
Enter mixing pond (B) ,+1mm material (2) for feeding mixing pond (B) feeds two section of two product heavy-medium cyclone by I (C) of pump
(D) ,+1mm material (2) obtains cleaned coal I (3), middle coal I (4) and spoil I by two section of two product heavy-medium cyclone (D) sorting
(5), selective crushing operation is carried out to the middle coal I (4) that sorting obtains using crusher (E), is crushed middle coal I (4) again and fills
It decomposes from using kaskad apparatus for pre-flotation pulp conditioning (F) carrying out operation of sizing mixing to the middle coal II (6) after dissociation, obtained after the operation that will size mixing
Material (7) is fed after coal is sized mixing is sorted through flotation device I (G), through under flotation device I (G) and ore pulp circulating pump (H) collective effect
Sorting obtains cleaned coal II (8) and tail coal I (9)；
It is isolated by classifying screen (A) less than 1mm material (10), i.e. the material of -1mm (10) then enters mixing pond I
(J), the material (10) of -1mm in mixing pond I (J) feeds classification vortex sieve (K) progress 0.2mm classification by pumping III (T),
The 1-0.2mm material (11) being classified out is fed mixing pond II (L), and the 1-0.2mm material (11) in mixing pond II (L) is by pump
II (M) squeezes into autogenous medium cyclone (N) and is sorted, and obtains two kinds of products of cleaned coal III (12) and spoil II (13)；It isolates
The material less than 0.2mm, i.e. the material of -0.2mm (14) feeds after kaskad apparatus for pre-flotation pulp conditioning (O) is sized mixing and obtains ore pulp
(15), the ore pulp (15) after sizing mixing feeds flotation device II (P) sorting and obtains cleaned coal IV (16) and tail coal II (17)；By what is sub-elected
All cleaned coal (18) feed blender (R), and add water and high efficiency complex additive (20) stirring to obtain product mix (19) afterwards
Filter pulp system (S) is fed, removes impurity (21) output water-coal-slurry (22) using filter pulp system (S).
2. the high intergrowth high ash sulphur coal sorts slurrying integral process according to claim 1, it is characterised in that: institute
There are the cleaned coal IV (16) and autogenous medium hydrocyclone (N) that obtain in cleaned coal (18) through flotation device II (P) sorting to sub-elect
Cleaned coal III (12) is not fed blender (R), the middle coal that middle coal I (4), cleaned coal III (12) and cleaned coal IV (16) are formed after being crushed jointly
II (6), by middle coal II (6) feed kaskad apparatus for pre-flotation pulp conditioning (F) generate in coal size mixing after material (7), material after coal in generation is sized mixing
(7) it feeds and is sorted through flotation device I (G), obtain cleaned coal through sorting under flotation device I (G) and ore pulp circulating pump (H) collective effect
II (8) and tail coal I (9), cleaned coal II (8) and cleaned coal I (3) are fed blender (R), after adding water and high efficiency complex additive (20)
Stirring to obtain product mix (19).
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105950238A (en) * | 2016-07-18 | 2016-09-21 | 中国矿业大学(北京) | System for preparing coal water slurry |
| CN110575903A (en) * | 2019-08-27 | 2019-12-17 | 西安中原机械有限公司 | Process for extracting clean coal from middlings |
| CN110961241A (en) * | 2019-11-05 | 2020-04-07 | 乌拉特中旗毅腾矿业有限责任公司 | Efficient and environment-friendly flotation feeding process and screening device thereof |
| CN114522798A (en) * | 2021-12-30 | 2022-05-24 | 淮北矿业股份有限公司 | Separation process for ultrafine high-ash coal slime difficult to separate |
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