CN213350162U - Fine sediment recycle system of coal slurry gasification - Google Patents
Fine sediment recycle system of coal slurry gasification Download PDFInfo
- Publication number
- CN213350162U CN213350162U CN202022018049.3U CN202022018049U CN213350162U CN 213350162 U CN213350162 U CN 213350162U CN 202022018049 U CN202022018049 U CN 202022018049U CN 213350162 U CN213350162 U CN 213350162U
- Authority
- CN
- China
- Prior art keywords
- feed inlet
- coal
- discharge gate
- export
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 44
- 239000003250 coal slurry Substances 0.000 title claims abstract description 13
- 239000013049 sediment Substances 0.000 title abstract description 12
- 239000003245 coal Substances 0.000 claims abstract description 52
- 239000012141 concentrate Substances 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 28
- 238000005188 flotation Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000004062 sedimentation Methods 0.000 claims abstract description 6
- 239000010797 grey water Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000002002 slurry Substances 0.000 claims description 37
- 238000004064 recycling Methods 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002562 thickening agent Substances 0.000 description 7
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000010866 blackwater Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Images
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model discloses a coal slurry gasification fine slag recycle system, including the shale shaker, the rod mill, the pulp pond, the ore pulp preprocessor, the flotation machine, the concentrate groove, first pressure filter and clean coal storehouse, the feed inlet of shale shaker is connected through the underflow opening of the grey water sedimentation tank of first delivery pump with coal slurry gasification workshop, the oversize material export of shale shaker is connected with the feed inlet of rod mill, the discharge gate of rod mill is connected with the feed inlet of pulp pond, the discharge gate of ore pulp pond is connected with the feed inlet of ore pulp preprocessor through first control valve and second delivery pump, the discharge gate of ore pulp preprocessor is connected with the feed inlet of flotation machine, the concentrate export of flotation machine is connected with the feed inlet of concentrate groove, the discharge gate of clean ore groove is connected with the feed inlet of first pressure filter, the discharge gate of first pressure filter is connected with the feed inlet of clean coal storehouse. The utility model discloses can realize the high-efficient hierarchical branch matter utilization of the thin sediment resource of coal gasification, entire system convenient operation.
Description
Technical Field
The utility model belongs to the technical field of solid useless utilization, specifically relate to a thin sediment recycle system of coal slurry gasification.
Background
The coal gasification technology is the leading technology of the modern coal chemical technology, and can obviously improve the clean conversion utilization rate of coal. However, the coal gasification industry is rapidly developed, and the utilization problem of waste slag is increasingly severe. The existing treatment mode of the gasified slag is mainly piled and buried, the gasified slag is not effectively utilized, and enterprises need to invest a large amount of capital to carry out the treatment of the gasified slag every year. According to the 2020 statistics of China geological survey bureau, in only Ordos areas, more than 200 million tons of ash are discharged every year, and a large amount of land is occupied by the ash in landfill and accumulation. Under the situation that the current environmental bearing capacity is increasingly severe, the research on the reduction and resource utilization technology of coal gasification slag is the key point for realizing the combination of economic benefit and environmental protection benefit of coal gasification and coal indirect oil-making enterprises.
In recent years, the separation and enrichment and high value-added utilization of unburned carbon in ash slag are gradually paid attention by researchers of coal chemical industry enterprises. Chinese patent application publication No. CN203602571U discloses a method for recycling fine slag discharged from an anthracite coal water slurry gasification furnace and a structure thereof, wherein the gasified fine slag discharged from the gasification furnace is respectively connected with a flotation charging bucket and a tail coal mud charging bucket through pumps, and then enters respective flotation machines, and the refined carbon after flotation is only used for blending combustion of the gasification furnace and a coal boiler, so that the concentrate product is not fully gasified or the adsorption performance is not exerted. Chinese patent application publication No. CN105524669A discloses a method for sorting and recycling coal gasification fine slag, in which ash and black water is settled and concentrated and then pumped into a flotation device, the selected carbon-rich component enters a pulping coal mill to be returned to pulping, and the low-carbon component is used as an ash melting point regulator; this may lead to conditions where the carbon content of the concentrate ash and tailings does not meet the standards, since the gasification fines are not fully dissociated. Chinese patent application publication No. CN107855103A provides a method for preparing an adsorbing material from coal gasification fine slag, in which fine slag slurry is subjected to gravity cyclone separation to obtain carbon-rich composite slurry, and then subjected to wet ball milling, dehydration and drying to obtain carbon-rich composite powder, and steam is used for activation treatment, so that the prepared adsorbing material has both polar and non-polar adsorption effects. The method provides a good direction for utilizing the adsorption performance of the gasified fine slag, but does not relate to a desliming link of the gasified fine slag, and may cause the yield of the carbon-rich component to be low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the above-mentioned prior art, provide a fine sediment recycle system of coal slurry gasification, it is the additional recovery system of establishment on coal slurry pressure gasification system, selects separately the enrichment combustible body carbon through wet process grading to the wet-state fine sediment that the gasification produced, and the concentrate uses as building material as gasification raw materials or adsorption material etc. fine mud tailing product, can realize the high-efficient comprehensive utilization of the fine sediment of gasification.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a coal slurry gasification fine slag recycle system which characterized in that: including shale shaker, rod mill, pulp pit, ore pulp preprocessor, flotation machine, concentrate groove, first pressure filter and clean coal storehouse, the feed inlet of shale shaker is connected through the underflow mouth of the grey water sedimentation tank of first delivery pump and coal slurry gasification workshop, the oversize material export of shale shaker is connected with the feed inlet of rod mill, the discharge gate of rod mill is connected with the feed inlet of pulp pit, the discharge gate of pulp pit is connected with the feed inlet of ore pulp preprocessor through first control valve and second delivery pump, the import of first control valve is connected with the discharge gate of pulp pit, the export of first control valve and the access connection of second delivery pump, the export of second delivery pump is connected with the feed inlet of ore pulp preprocessor, the discharge gate of ore pulp preprocessor is connected with the feed inlet of flotation machine, the concentrate export of flotation machine is connected with the feed inlet of concentrate groove, the discharge port of the concentrate tank is connected with the feed inlet of the first filter press, and the discharge port of the first filter press is connected with the feed inlet of the clean coal bin.
The fine slag recycling system for coal water slurry gasification is characterized in that: still include the circulating water pond, the coal slime water export of first pressure filter is connected with the access connection in circulating water pond.
The fine slag recycling system for coal water slurry gasification is characterized in that: still include concentrated machine, second pressure filter and fine mud storehouse, the discharge gate of concentrated machine is connected with the feed inlet of second pressure filter, the discharge gate of second pressure filter is connected with the feed inlet in fine mud storehouse, the coal slime water export of concentrated machine and second pressure filter all with the access connection in circulation pond, the undersize fine mud material export of shale shaker and the tailing export of flotation cell all are connected with the feed inlet of concentrated machine.
The fine slag recycling system for coal water slurry gasification is characterized in that: still include second control valve, third delivery pump and swirler, the export of second control valve and the access connection of third delivery pump, the export of third delivery pump is connected with the feed inlet of swirler, the discharge gate of swirler is connected with the feed inlet of ore pulp preprocessor, the overflow mouth of swirler is connected with the feed inlet of concentrator, the import of second control valve is connected with the discharge gate in ore pulp pond.
The fine slag recycling system for coal water slurry gasification is characterized in that: the cyclone is a hydrocyclone.
The fine slag recycling system for coal water slurry gasification is characterized in that: the vibrating screen is a high-frequency vibrating screen with the screen hole size of 0.074 mm.
The fine slag recycling system for coal water slurry gasification is characterized in that: the rod mill is a wet rod mill.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses can provide a good direction for the recycle of the thin sediment of coal slurry gasification, improve the terminal flow of coal gasification technology, save the belt filter-pressing link after the current thin sediment of gasification factory subsides.
2. The utility model discloses a desliming in advance, ore grinding, secondary desliming, flotation come enrichment solid combustible body carbon and inorganic impurity, can realize the high-efficient hierarchical branch matter utilization of the fine sediment resource of coal gasification, entire system convenient operation.
3. The utility model discloses an additional recovery system of establishment on coal slurry pressurization gasification system selects separately through wet process grading to the fine sediment of wet attitude that the gasification produced and gathers combustible body carbon, and the concentrate uses as building material as gasification raw materials or adsorption material etc. fine mud tailing product, can realize the high-efficient comprehensive utilization of the fine sediment of gasification.
4. The utility model discloses selected the technical form that can better combine with former technology, technical feasibility is strong, is favorable to later stage technology transformation.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1-an ash water sedimentation tank; 2, vibrating a screen; 3, a rod mill;
4-slurry pond; 5, a swirler; 6, a pulp preprocessor;
7-flotation machine; 8-concentrate trough; 9 — a first control valve;
10-a first filter press; 11-a thickener; 12-a second filter press;
13-clean coal bunker; 14-circulating water pool; 15-fine mud bin;
16 — a first delivery pump; 17-a third delivery pump; 18-a second delivery pump;
19-second control valve.
Detailed Description
As shown in figure 1, the utility model comprises a vibrating screen 2, a rod mill 3, a slurry tank 4, an ore pulp preprocessor 6, a flotation machine 7, a concentrate tank 8, a first filter press 10 and a concentrate coal bin 13, wherein the feed inlet of the vibrating screen 2 is connected with the bottom flow port of a grey water sedimentation tank 1 of a coal water slurry gasification workshop through a first delivery pump 16, the oversize material outlet of the vibrating screen 2 is connected with the feed inlet of the rod mill 3, the discharge outlet of the rod mill 3 is connected with the feed inlet of the slurry tank 4, the discharge outlet of the slurry tank 4 is connected with the feed inlet of the ore pulp preprocessor 6 through a first control valve 9 and a second delivery pump 18, the inlet of the first control valve 9 is connected with the discharge outlet of the slurry tank 4, the outlet of the first control valve 9 is connected with the inlet of the second delivery pump 18, the outlet of the second delivery pump 18 is connected with the feed inlet of the ore pulp preprocessor 6, the discharge gate of ore pulp preprocessor 6 is connected with the feed inlet of flotation device 7, the concentrate export of flotation device 7 is connected with the feed inlet of concentrate groove 8, the discharge gate of concentrate groove 8 is connected with the feed inlet of first pressure filter 10, the discharge gate of first pressure filter 10 is connected with the feed inlet of clean coal storehouse 13.
As shown in FIG. 1, the utility model also comprises a circulating water tank 14, and the coal slime water outlet of the first filter press 10 is connected with the inlet of the circulating water tank 14.
As shown in fig. 1, the utility model discloses still include concentrated machine 11, second pressure filter 12 and fine mud storehouse 15, the discharge gate of concentrated machine 11 is connected with the feed inlet of second pressure filter 12, the discharge gate of second pressure filter 12 is connected with the feed inlet of fine mud storehouse 15, the coal slime water export of concentrated machine 11 and the coal slime water export of second pressure filter 12 all with circulation water tank 14's access connection, the undersize fine mud material export of shale shaker 2 and the tailing export of flotation machine 7 all are connected with concentrated machine 11's feed inlet.
As shown in fig. 1, the utility model discloses still include second control valve 19, third delivery pump 17 and swirler 5, the export of second control valve 19 and the access connection of third delivery pump 17, the export of third delivery pump 17 is connected with swirler 5's feed inlet, swirler 5's discharge gate and pulp preprocessor 6's feed inlet are connected, swirler 5's overflow mouth is connected with thickener 11's feed inlet, second control valve 19's import and pulp chest 4's discharge gate are connected. In this embodiment, the cyclone 5 is a hydrocyclone.
In the embodiment, the screening form of the vibrating screen 2 is wet screening, the vibrating screen 2 is a high-frequency vibrating screen with the screen hole size of 0.074mm, and fine and high-ash materials are removed from the materials through a high-frequency vibrating screen surface.
In the present embodiment, the rod mill 3 is a wet rod mill.
The utility model discloses a theory of operation does: firstly, the bottom flow of a grey water sedimentation tank 1 of a coal water slurry gasification workshop is sent to a vibrating screen 2 with the screen hole size of 0.074mm through a first delivery pump 16 to remove fine mud materials.
Materials on the screen of the vibrating screen 2 enter the rod mill 3 for wet grinding, and fine mud materials under the screen of the vibrating screen 2 sequentially enter the thickener 11 and the second filter press 12 for dehydration.
The ground product is discharged into the slurry tank 4. In practice, the flow direction of the slurry in the slurry tank 4 is controlled by the second control valve 19 and the first control valve 9. If the carbon content of the material with the diameter of-0.074 mm in the slurry pond 4 is less than about 30 percent, secondary desliming is required, namely, the second control valve 19 is opened and the first control valve 9 is closed, and the slurry is sent into the cyclone 5 through the third delivery pump 17 to be deslimed. Wherein, the underflow of the cyclone 5 enters a pulp preprocessor 6, the overflow of the cyclone 5 enters a thickener 11 and a second filter press 12 in sequence for dehydration, and the removed water enters a circulating water pool 14. If the carbon content of the material with the thickness of-0.074 mm in the pulp tank 4 is more than about 30 percent, secondary desliming is not needed, namely the second control valve 19 is closed and the first control valve 9 is opened, and the material in the pulp tank 4 is directly conveyed into the pulp preprocessor 6 through the second conveying pump 18.
After the pulp pre-processor 6 is used for size mixing treatment, the pulp enters a flotation machine 7 for separation and enrichment, and concentrate obtained by flotation enters a concentrate tank 8 and enters a concentrate coal bin 13 for storage after being dehydrated by a first filter press 10. The flotation tailings enter a thickener 11 and a second filter press 12 in sequence for dehydration, and the removed water enters a circulating water tank 14. The concentrate obtained by flotation can be used as a pulping raw material to enter a coal water slurry gasification system for cyclic conversion and utilization, and the concentrate can also be used as an adsorbing material after being co-fired or activated as an electric coal ingredient according to the heat value and the adsorbability.
And the undersize mud of the vibrating screen 2, the overflow of the cyclone 5 and the flotation tailings enter a thickener 11 for dehydration, and then are subjected to filter pressing and dehydration by a second filter press 12 to form a filter cake rich in inorganic substances, and the filter cake is stored in a fine mud bin 15 for being used as a building material.
In the whole process, clarified coal slurry obtained by the first filter press 10, the thickener 11 and the second filter press 12 enters a circulating water tank 14 of a factory building. The water stored in the circulating water tank 14 can be used for supplying water for the gasification system and circulating water in the system, and can be used for supplying water for wet screening, slurry mixing, flotation and coal water slurry gasification workshops in the system, so that water resources are saved.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform that the above embodiment was done the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. The utility model provides a coal slurry gasification fine slag recycle system which characterized in that: comprises a vibrating screen (2), a rod mill (3), a slurry tank (4), a slurry pre-processor (6), a flotation machine (7), a concentrate tank (8), a first filter press (10) and a concentrate coal bin (13), wherein a feed inlet of the vibrating screen (2) is connected with a bottom flow port of a grey water sedimentation tank (1) of a coal water slurry gasification workshop through a first delivery pump (16), an oversize material outlet of the vibrating screen (2) is connected with a feed inlet of the rod mill (3), a discharge outlet of the rod mill (3) is connected with a feed inlet of the slurry tank (4), a discharge outlet of the slurry tank (4) is connected with a feed inlet of the slurry pre-processor (6) through a first control valve (9) and a second delivery pump (18), an inlet of the first control valve (9) is connected with a discharge outlet of the slurry tank (4), an outlet of the first control valve (9) is connected with an inlet of the second delivery pump (18), the export of second delivery pump (18) is connected with the feed inlet of ore pulp preprocessor (6), the discharge gate of ore pulp preprocessor (6) is connected with the feed inlet of flotation machine (7), the concentrate export of flotation machine (7) is connected with the feed inlet of concentrate groove (8), the discharge gate of concentrate groove (8) is connected with the feed inlet of first pressure filter (10), the discharge gate of first pressure filter (10) is connected with the feed inlet of concentrate coal bunker (13).
2. The system for recycling the coal water slurry gasified fine slag according to claim 1, which is characterized in that: still include circulation pond (14), the coal slime water export of first pressure filter (10) and the access connection of circulation pond (14).
3. The system for recycling the coal water slurry gasified fine slag according to claim 2, which is characterized in that: still include concentrated machine (11), second pressure filter (12) and fine mud storehouse (15), the discharge gate of concentrated machine (11) is connected with the feed inlet of second pressure filter (12), the discharge gate of second pressure filter (12) is connected with the feed inlet of fine mud storehouse (15), the coal slime water export of concentrated machine (11) and second pressure filter (12) export all with the access connection of circulation pond (14), the undersize fine mud material export of shale shaker (2) and the tailing export of flotation machine (7) all are connected with the feed inlet of concentrated machine (11).
4. The system for recycling the coal water slurry gasified fine slag according to claim 3, which is characterized in that: still include second control valve (19), third delivery pump (17) and swirler (5), the exit of second control valve (19) and the access connection of third delivery pump (17), the export of third delivery pump (17) is connected with the feed inlet of swirler (5), the discharge gate of swirler (5) is connected with the feed inlet of ore pulp preprocessor (6), the overflow mouth of swirler (5) is connected with the feed inlet of concentrator (11), the import of second control valve (19) is connected with the discharge gate of ore pulp pond (4).
5. The system for recycling the coal water slurry gasified fine slag according to claim 4, wherein: the cyclone (5) is a hydrocyclone.
6. The system for recycling the coal water slurry gasified fine slag according to any one of claims 1 to 5, wherein: the vibrating screen (2) is a high-frequency vibrating screen with the screen hole size of 0.074 mm.
7. The system for recycling the coal water slurry gasified fine slag according to any one of claims 1 to 5, wherein: the rod mill (3) is a wet rod mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018049.3U CN213350162U (en) | 2020-09-15 | 2020-09-15 | Fine sediment recycle system of coal slurry gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022018049.3U CN213350162U (en) | 2020-09-15 | 2020-09-15 | Fine sediment recycle system of coal slurry gasification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213350162U true CN213350162U (en) | 2021-06-04 |
Family
ID=76152061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022018049.3U Expired - Fee Related CN213350162U (en) | 2020-09-15 | 2020-09-15 | Fine sediment recycle system of coal slurry gasification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213350162U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351365A (en) * | 2021-06-08 | 2021-09-07 | 商南天和泥浆有限公司 | Weathered coal desilting flotation system |
| CN113458126A (en) * | 2021-07-30 | 2021-10-01 | 李晓慧 | Solid waste recycling equipment for coal gasification slag |
| CN114534909A (en) * | 2022-04-07 | 2022-05-27 | 中国矿业大学 | Separation system and separation method for flotation and decarburization of gasified slag |
| CN114768989A (en) * | 2022-04-02 | 2022-07-22 | 西安科技大学 | Efficient quality-dividing process system for coal water slurry gasification fine slag |
-
2020
- 2020-09-15 CN CN202022018049.3U patent/CN213350162U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351365A (en) * | 2021-06-08 | 2021-09-07 | 商南天和泥浆有限公司 | Weathered coal desilting flotation system |
| CN113458126A (en) * | 2021-07-30 | 2021-10-01 | 李晓慧 | Solid waste recycling equipment for coal gasification slag |
| CN114768989A (en) * | 2022-04-02 | 2022-07-22 | 西安科技大学 | Efficient quality-dividing process system for coal water slurry gasification fine slag |
| CN114768989B (en) * | 2022-04-02 | 2024-05-14 | 西安科技大学 | Operation method of coal water slurry gasification fine slag efficient quality separation process system |
| CN114534909A (en) * | 2022-04-07 | 2022-05-27 | 中国矿业大学 | Separation system and separation method for flotation and decarburization of gasified slag |
| CN114534909B (en) * | 2022-04-07 | 2023-03-10 | 中国矿业大学 | Separation system and separation method for flotation and decarburization of gasified slag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213350162U (en) | Fine sediment recycle system of coal slurry gasification | |
| CA3099448C (en) | Underground coal separation process | |
| CN103350027B (en) | Graded desliming pressurized feeding three products heavy medium cyclone coal preparation technique | |
| CN111659527B (en) | Gasification slag water medium cyclone gravity carbon ash separation device and method | |
| CN105597915B (en) | The wide dual Jie's whole coarse slime separating process of grade can be achieved in one kind | |
| CN111644263A (en) | Combined separation process and device for realizing carbon-ash separation of gasified slag | |
| CN212383872U (en) | System for reducing clean coal mud ash content in heavy-medium coal separation process | |
| CN102489391B (en) | High-sulfur power raw coal sorting process | |
| CN110899001B (en) | Two-stage flotation process for difficult-to-float coal slime | |
| CN110560258B (en) | Device and process for selecting ultra-clean coal by physical cyclone recovery jigging overflow coal slime | |
| CN105233975A (en) | Tailing treatment process in poor magnetic iron ore beneficiation process | |
| CN105728156A (en) | Preparation technology of super pure coal | |
| CN105381866A (en) | Beneficiation method for extracting iron and carbon from blast furnace bag dust | |
| CN105170306A (en) | Washing process for high-ash high-clay high-gangue coal | |
| CN112371323A (en) | Combined separation process of pressurized two-product and pressurized three-product cyclones | |
| CN205851092U (en) | The secondary recovery system of coal in a kind of texaco gasification lime-ash | |
| CN105195304A (en) | Sorting process for improving quality and reducing impurities of low-grade magnetite concentrate | |
| CN102500472A (en) | Concentrating, filtering and dehydrating process for flotation clean coal | |
| CN209997781U (en) | Coarse coal slime dense medium sorting system | |
| CN114749269B (en) | Full-size recycling process for gasified fine slag of coal water slurry | |
| CN110052326B (en) | System and method for purifying and recycling refined coal slime | |
| CN115318426A (en) | Harmless treatment and resource utilization method for sulfur-containing coal gangue | |
| CN104741214A (en) | System and method for preparing pulverized coal fuel of pulverized-coal boiler by using coal washing tailings | |
| CN113600332A (en) | Fine-grained refractory coking coal separation system with high medium coal content | |
| CN103230831A (en) | Processing and utilizing method for extracting carbon and iron from blast furnace metallurgy dust and sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210604 |