CN220258319U - Device for recycling gasification slag by two-step method - Google Patents
Device for recycling gasification slag by two-step method Download PDFInfo
- Publication number
- CN220258319U CN220258319U CN202321411675.6U CN202321411675U CN220258319U CN 220258319 U CN220258319 U CN 220258319U CN 202321411675 U CN202321411675 U CN 202321411675U CN 220258319 U CN220258319 U CN 220258319U
- Authority
- CN
- China
- Prior art keywords
- inlet
- stirring barrel
- flotation column
- outlet
- flotation
- 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.)
- Active
Links
- 239000002893 slag Substances 0.000 title claims abstract description 30
- 238000002309 gasification Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004064 recycling Methods 0.000 title claims abstract description 19
- 238000005188 flotation Methods 0.000 claims abstract description 92
- 238000003756 stirring Methods 0.000 claims abstract description 53
- 239000002002 slurry Substances 0.000 claims abstract description 47
- 230000002000 scavenging effect Effects 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 19
- 239000003153 chemical reaction reagent Substances 0.000 claims description 18
- 239000007791 liquid phase Substances 0.000 claims description 6
- 239000007790 solid phase Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 4
- 239000002956 ash Substances 0.000 abstract description 3
- 239000010883 coal ash Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 230000008676 import Effects 0.000 description 3
- 239000002516 radical scavenger Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003250 coal slurry Substances 0.000 description 2
- 239000008396 flotation agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a device for recycling gasification furnace slag by a two-step method, which comprises a wet rough mill, a slurry mixing stirring barrel, a rough separation flotation column, a scavenging stirring barrel, a scavenging flotation column, a concentration stirring barrel, a concentration flotation column, a filter press, a wet fine mill and a slurry pump which are sequentially connected through pipelines. According to the utility model, the two-step method is adopted to grind the gasification slag, so that the technical problems of reduced flotation separation effect, high loss of refined coal ash and tailing due to small particle size of the gasification slag after grinding are solved, the application range of gasification slag resource utilization is further improved through secondary grinding, and the produced refined coal product has the advantages of low ash content and high heat value, and has good economic and social benefits.
Description
Technical Field
The utility model relates to the technical field of solid waste resource utilization, in particular to a device for utilizing gasification furnace slag in a two-step method.
Background
The gasification furnace slag is the main industrial solid waste generated in the coal chemical industry, and is mainly ash and unburned carbon residue formed by melting of aluminosilicate minerals. Because the gasification furnace slag has the characteristics of high loss on ignition and high moisture content, the present stage mainly uses landfill treatment, not only occupies a large amount of land resources, but also causes serious pollution to soil, water and air.
The silicon-aluminum raw materials used in the building material industry have standard requirements on fineness and specific surface area, but if the gasification slag is directly ground into fineness and specific surface area required by building material production, flotation separation is adopted, so that the flotation separation effect is reduced due to the fact that the gasification slag particle size is too small, loss of refined coal ash and tailing is increased, the recycling range of gasification slag is reduced, and the use amount of flotation agents is increased.
Disclosure of Invention
Aiming at the technical defects caused by primary grinding, the utility model provides a device for recycling gasification furnace slag by a two-step method, which can avoid the technical problems of reduced flotation separation effect, increased loss of refined coal ash and tailing caused by undersize primary grinding particle size, improve the recycling utilization range of gasification furnace slag and reduce the dosage of flotation agents.
In order to achieve the above purpose, the utility model provides a device for recycling gasification furnace slag by a two-step method, which comprises a wet rough mill, a slurry mixing stirring barrel, a rough concentration flotation column, a scavenging stirring barrel, a scavenging flotation column, a carefully concentration stirring barrel, a carefully concentration flotation column, a filter press, a wet fine mill and a slurry pump which are connected in sequence by pipelines, and is characterized in that: the wet rougher, the size mixing stirring barrel, the rougher stirring barrel and the rougher flotation column are sequentially connected through pipelines, the overflow outlet of the rougher flotation column is sequentially connected with the fine mixing stirring barrel and the fine flotation column through pipelines, the overflow outlet of the fine flotation column is connected with the inlet of the clean coal filter press, the underflow outlet of the fine flotation column is connected with the inlet of the rougher stirring barrel through pipelines, the underflow outlet of the rougher flotation column is sequentially connected with the scavenging stirring barrel and the scavenging flotation column through pipelines, the overflow outlet of the scavenging flotation column is connected with the inlet of the rougher stirring barrel through pipelines, the underflow outlet of the scavenging is connected with the inlet of the tailings filter press through pipelines, the solid phase outlet of the tailings filter press is connected with the inlet of the wet fine grinding machine through conveying equipment, multiple flotation separation of residual carbon contained in gasified slag is realized, and ash and loss of tailings of clean coal products are reduced.
The device for recycling gasification slag by the two-step method is characterized in that: a slurry pump is arranged between the outlet of the slurry mixing stirring barrel and the inlet of the rougher flotation barrel, a slurry pump is arranged between the overflow outlet of the rougher flotation barrel and the inlet of the carefully chosen stirring barrel, a slurry pump is arranged between the outlet of the carefully chosen stirring barrel and the inlet of the carefully chosen flotation barrel, a slurry pump is arranged between the overflow outlet of the carefully chosen flotation barrel and the inlet of the clean coal filter press, and a slurry pump is arranged between the underflow outlet of the carefully chosen flotation barrel and the inlet of the rougher flotation barrel. A slurry pump is arranged between an underflow outlet of the roughing flotation column and an inlet of the scavenging stirring barrel, a slurry pump is arranged between an outlet of the scavenging stirring barrel and an inlet of the scavenging flotation column, a slurry pump is arranged between an overflow outlet of the scavenging flotation column and an inlet of the roughing stirring barrel, and a slurry pump is arranged between an underflow outlet of the scavenging flotation column and an inlet of the tailing filter press, so that slurry can flow mutually, and pipeline blockage is avoided.
The device for recycling gasification slag by the two-step method is characterized in that: the rougher flotation agitator sets up rougher flotation reagent import and rougher flotation reagent case and is connected through the pipeline, and carefully select the agitator sets up carefully select flotation reagent import and carefully select flotation reagent case and is connected through the pipeline, and the scavenger agitator sets up scavenger flotation reagent import and scavenger flotation reagent case and is connected through the pipeline, controls the quantity and the kind of flotation reagent to different flotation indexes, improves flotation efficiency, reduces the flotation reagent quantity.
The device for recycling gasification slag by the two-step method is characterized in that: the liquid phase outlet of the clean coal filter press is connected with the inlet of the slurry mixing stirring barrel through a pipeline, and the liquid phase outlet of the tailing filter press is connected with the inlet of the slurry mixing stirring barrel through a pipeline, so that the recycling of the process water is realized.
The utility model has the beneficial effects that: breaking adhesion and wrapping of gasification slag through a wet coarse mill, controlling the grain size of the gasification slag to be in a range suitable for flotation separation, performing flotation separation to obtain clean coal and tailings, grinding the tailings to fineness and specific surface area required by building material production through a wet fine mill, reducing the dosage of a flotation reagent through a two-step grinding method, and improving the recycling range of the gasification slag.
Drawings
Fig. 1: schematic diagram of a device for recycling gasification slag by a two-step method.
Reference numerals: 1-wet rough grinding machine, 2-pulp mixing stirring barrel, 3-pulp pump a, 4-roughing stirring barrel, 5-roughing reagent box, 6-pulp pump b, 7-roughing flotation column, 8-pulp pump c, 9-selection stirring barrel, 10-selection reagent box, 11-pulp pump d, 12-selection flotation column, 13-pulp pump e, 14-pulp pump f, 15-clean coal filter press, 16-pulp pump g, 17-scavenging reagent box, 18-scavenging stirring barrel, 19-pulp pump h, 20-scavenging flotation column, 21-pulp pump k, 22-pulp pump m, 23-tailing filter press and 24-wet fine grinding machine.
Description of the embodiments
The embodiments of the present utility model will be described below with reference to specific embodiments, but the present utility model may be embodied or applied in different embodiments, and in order to better describe the embodiments of the present utility model, identical or similar components are corresponding to identical or similar reference numerals in the drawings of the embodiments of the present utility model, in the description of the embodiments of the present utility model, terms describing the positional relationship are merely used for exemplary illustration, and not to be construed as limiting the present utility model, and it will be understood by those of ordinary skill in the art that the specific meaning of the terms described above will be understood according to the specific circumstances.
Referring to fig. 1 of the accompanying drawings, gasification furnace slag from coal chemical industry is sent into a wet rough mill 1, ground into slurry after controlling the grinding particle size, then sent into a slurry mixing stirring barrel 2, mixed with filtered water discharged by a clean coal filter press 15 and a tailings filter press 23, mixed and stirred to a concentration suitable for flotation separation, sent into a rough concentration stirring barrel 4 through a slurry pump a, and mixed and stirred with rough concentration chemicals from a rough concentration chemical tank 5.
The slurry stirred by the roughing stirring barrel 4 is sent into a roughing flotation column 7 through a slurry pump b, the floated clean coal slurry is sent into a fine selection stirring barrel 9 through a slurry pump c through an overflow outlet of the roughing flotation column 7, and is sent into a fine selection flotation column 12 through a slurry pump d after being stirred and mixed with a fine selection agent from a fine selection agent box 10, and the clean coal produced after the clean flotation column 12 is used for recleaning the clean coal slurry is sent into a clean coal filter press 15 through a slurry pump e through an overflow outlet of the fine selection flotation column, so that a clean coal product is produced. The filtered water produced by the clean coal filter press 15 is returned to the slurry mixing stirring barrel 2 through a pipeline. The underflow from the beneficiation flotation column 12 is returned to the rougher mixer 4 by a slurry pump f.
The underflow of the rougher flotation column 7 is sent to a scavenging stirring barrel 18 through a slurry pump g, and is stirred and mixed with scavenging chemical from a scavenging chemical box 17, then sent to a scavenging flotation column 20 through a slurry pump h, and slurry generated at an overflow outlet of the scavenging flotation column 20 returns to the rougher stirring barrel 4 through a slurry pump m. The bottom of the scavenging flotation column 20 flows through a slurry pump k to be sent into a tailing filter press 23, tailings produced by the tailing filter press 23 are sent into a wet fine mill 24 through conveying equipment to be ground, and the ground tailings are used as raw materials of building material products for recycling. The filtered water produced by the tailings filter press 23 is returned to the size mixing stirring barrel 2 through a pipeline.
The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.
Claims (6)
1. The utility model provides a device of two step method utilization gasification slag, includes wet process rough mill, size mixing agitator, rougher flotation column, sweeps the agitator, sweeps the flotation column, carefully select agitator, carefully select flotation column, clean coal pressure filter, tailings pressure filter, wet process fine mill and thick liquid pump and connects gradually its characterized in that with the pipeline: the clean coal filter press is provided with a liquid phase outlet and an inlet, the pulp mixing stirring barrel is provided with an inlet and an outlet, the scavenging flotation column is provided with an overflow outlet, an underflow outlet and an inlet, the roughing stirring barrel is provided with an inlet, the roughing flotation column is provided with an overflow outlet, an underflow outlet and an inlet, the concentrating stirring barrel is provided with an inlet and an outlet, the concentrating flotation column is provided with an outflow outlet, an underflow outlet and an inlet, and the tailings filter press is provided with a solid phase outlet, a liquid phase outlet and an inlet; the wet rough mill, the size mixing stirring barrel, the roughing stirring barrel and the roughing flotation column are sequentially connected through pipelines, the upper end of the roughing flotation column is provided with an overflow outlet, and the wet rough mill, the size mixing stirring barrel, the roughing stirring barrel and the roughing flotation column are connected with the carefully chosen flotation column after being connected with the carefully chosen stirring barrel through pipelines, and the upper end of the carefully chosen flotation column is provided with an overflow outlet which is connected with the refined coal filter press through pipelines; the lower part of the fine flotation column is provided with an underflow outlet which is connected with an inlet arranged on the roughing stirring barrel through a pipeline; the lower part of the roughing flotation column is provided with an underflow outlet which is connected with a scavenging stirring barrel through a pipeline, and then is connected with the scavenging flotation column, and an overflow outlet arranged on the scavenging flotation column is connected with an inlet of the roughing stirring barrel through a pipeline; the bottom flow outlet arranged at the bottom of the scavenging flotation column is connected with the inlet arranged on the tailing filter press through a pipeline, the solid phase outlet arranged at the bottom of the tailing filter press is connected with the inlet arranged on the wet fine mill, and the upper outlet arranged on the tailing filter press is connected with the inlet arranged on the slurry mixing stirring barrel.
2. The device for recycling gasification slag by a two-step method according to claim 1, wherein: a slurry pump a is further arranged between an outlet arranged on the slurry mixing stirring barrel and an inlet arranged on the rougher flotation barrel, a slurry pump b is arranged between an outlet arranged on the slurry mixing stirring barrel and an inlet arranged on the rougher flotation column, a slurry pump c is arranged between an overflow outlet arranged on the rougher flotation column and an inlet arranged on the fine flotation barrel, a slurry pump d is arranged between an outlet arranged on the fine flotation barrel and an inlet arranged on the fine flotation column, a slurry pump e is arranged between an overflow outlet arranged on the fine flotation column and an inlet arranged on the clean coal filter press, and a slurry pump f is arranged between an underflow outlet arranged on the fine flotation column and an inlet arranged on the rougher flotation barrel; a slurry pump g is arranged between an underflow outlet arranged on the roughing flotation column and a scavenging stirring barrel, a slurry pump h is arranged between a scavenging stirring barrel and an inlet arranged on the scavenging flotation column, a slurry pump m is arranged between an overflow outlet arranged on the scavenging flotation column and an inlet of the roughing stirring barrel, and a slurry pump k is arranged between an underflow outlet arranged on the scavenging flotation column and an inlet arranged on the tailing filter press.
3. The device for recycling gasification slag by a two-step method according to claim 1, wherein: the rougher mixing drum is also provided with a rougher flotation reagent inlet and is connected with a rougher flotation reagent box through a pipeline.
4. The device for recycling gasification slag by a two-step method according to claim 1, wherein: the selection stirring barrel is also provided with a selection flotation reagent inlet and is connected with a selection flotation reagent box through a pipeline.
5. The device for recycling gasification slag by a two-step method according to claim 1, wherein: the scavenging stirring barrel is also provided with a scavenging flotation reagent inlet and is connected with a scavenging flotation reagent box through a pipeline.
6. The device for recycling gasification slag by a two-step method according to claim 1, wherein: the liquid phase outlet of the clean coal filter press is connected with the inlet of the slurry mixing stirring barrel through a pipeline, and the liquid phase outlet of the tailing filter press is connected with the inlet of the slurry mixing stirring barrel through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321411675.6U CN220258319U (en) | 2023-06-05 | 2023-06-05 | Device for recycling gasification slag by two-step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321411675.6U CN220258319U (en) | 2023-06-05 | 2023-06-05 | Device for recycling gasification slag by two-step method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220258319U true CN220258319U (en) | 2023-12-29 |
Family
ID=89300983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321411675.6U Active CN220258319U (en) | 2023-06-05 | 2023-06-05 | Device for recycling gasification slag by two-step method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220258319U (en) |
-
2023
- 2023-06-05 CN CN202321411675.6U patent/CN220258319U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105524669B (en) | Coal gasification fine slag sorts and the method for reuse | |
| CN101602566B (en) | Novel process for comprehensively treating oily sludge of oil field | |
| AU2019437717B2 (en) | Flotation process for treating coal slime by using salt-containing wastewater | |
| CN108380397A (en) | A kind of recovery method of low concentration calcite type containing mica fluorite tailing | |
| CN110422975B (en) | Integrated process for hot washing and fine slag high-value utilization of oily waste based on gasified black water | |
| CN107303539A (en) | A kind of floatation process of coal gasification fine slag | |
| CN102744146A (en) | Ore-dressing method for low-grade bauxite | |
| CN103497791B (en) | A kind of Novel sludge coal-water slurry and preparation method thereof | |
| CN204298355U (en) | A kind of preparation system of sludge water-coal-slurry | |
| CN111389597B (en) | Polar mixed reagent for low-rank coal flotation and flotation process | |
| CN104342186A (en) | Water washing separation method and water washing separation system for oil sand | |
| CN102974468A (en) | Non-ferrous metal mineral flotation agent | |
| CN210875709U (en) | Carbide slag edulcoration processing system | |
| CN101507947A (en) | Quartz sand flotation method | |
| CN220258319U (en) | Device for recycling gasification slag by two-step method | |
| CN110790469B (en) | Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag | |
| RU2692334C1 (en) | Method of extracting unburned carbon from tpp fly ash | |
| CN215087945U (en) | Coal gasification ash sorting system based on spiral chute | |
| CN106244267A (en) | A kind of clean combustion type water-coal-slurry and preparation method thereof | |
| CN106635208B (en) | The technique that a kind of coal preparation plant's thickener underflow directly prepares water-coal-slurry | |
| CN205796736U (en) | Ball milling mine tailing directly sieves dewatering system | |
| CN209260030U (en) | The device of moulded coal is produced using oily mud in oil refinery as carburetting adhesive | |
| CN210419599U (en) | High-concentration water-coal-slurry additive wastewater recovery device | |
| CN113354321A (en) | Method and device for recycling waste slurry water of mixing plant | |
| CN101928056A (en) | Device and method for treating printing ink wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |