CN101638591A - Recovery method of carbon in slag from gasifying furnace - Google Patents
Recovery method of carbon in slag from gasifying furnace Download PDFInfo
- Publication number
- CN101638591A CN101638591A CN 200910183787 CN200910183787A CN101638591A CN 101638591 A CN101638591 A CN 101638591A CN 200910183787 CN200910183787 CN 200910183787 CN 200910183787 A CN200910183787 A CN 200910183787A CN 101638591 A CN101638591 A CN 101638591A
- Authority
- CN
- China
- Prior art keywords
- slag
- ash
- carbon
- lime
- recovery method
- 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.)
- Pending
Links
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 47
- 239000002893 slag Substances 0.000 title claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000002956 ash Substances 0.000 claims description 44
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000010881 fly ash Substances 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 2
- 239000003245 coal Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000003818 cinder Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Landscapes
- Processing Of Solid Wastes (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention relates to a recovery method of uncombusted carbon in slag, in particular to a recovery method of carbon in slag from a gasifying furnace, which comprises the following steps: evenly feeding the slag discharged from the gasifying furnace into a screener or grader by a pump or feeder if the slag is wet, wherein the slag comprises rough slag, fine slag and fine dust; and then screeningor grading the slag by a wet method according to different carbon contents of the rough granular material and the fine granular material in the slag so as to obtain a high-carbon rough granular product or a low-carbon fine granular product; if the slag is dry, evenly feeding the slag into a screener or grader by a feeder or air flow conveyor, and then screening or grading the slag by a dry methodso as to obtain a high-carbon rough granular product or a low-carbon fine granular product; and discarding the low-carbon fine granular product as the final slag or comprehensively utilizing the low-carbon fine granular product after the slag is collected by a dust remover.
Description
Technical field
The present invention relates to the recovery method of uncompleted burned carbon in a kind of lime-ash, especially relate to the recovery method of carbon in a kind of slag from gasifying furnace.
Background technology
At present, China's raw coal is produced and consumes all very big, is coal production big country, also is the discharging big country of coal slag simultaneously, and throwing aside of cinder not only takies a lot of soils, and serious environment pollution, the waste resource.The cindery composition of coal is very complicated, and cindery comprehensive utilization is a difficult point to coal.Particularly in different coal gasifying process, the lime-ash that vapourizing furnace is discharged always contains some flammable carbon, and this not only causes valuable Energy resources waste, has increased the cost of gasification again.Also slag from gasifying furnace is not carried out sorting at present and reclaim the wherein open or report of application of flammable carbon.
Summary of the invention
The objective of the invention is provides the recovery method of carbon in a kind of slag from gasifying furnace for overcoming above-mentioned the deficiencies in the prior art part.This recovery method is that the lime-ash of will discharge from vapourizing furnace comprises thick slag, thin slag and thin ash, if wet lime-ash, feed sieve apparatus or grading machine equably by pump or feeding machine, carbon content according to coarse fraction material in the lime-ash and fine particle stage material is different, through wet sieving or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content, the fine fraction product that carbon content is low is abandoned or is fully utilized as final lime-ash after sedimentation concentrates or dewaters.If dry ash slag, feed sieve apparatus or grading machine equably by feeding machine or gas delivery equipment, carbon content according to coarse fraction material in the lime-ash and fine particle stage material is different, through dry screening or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content, the fine fraction product that carbon content is low is abandoned or is fully utilized as final lime-ash after fly-ash separator is collected.The coarse fraction product that carbon content is high can be further used as the fuel utilization of gasified raw material or elsewhere.
The present invention realizes with following technical scheme: the recovery method of carbon in a kind of slag from gasifying furnace, it is characterized in that: with the lime-ash of vapourizing furnace discharge, feed sieve apparatus or grading machine by pump or feeding machine or gas delivery equipment, through wet method or dry screening or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content.
The described lime-ash that vapourizing furnace is discharged comprises thick slag, thin slag and thin ash, and described lime-ash feeds sieve apparatus or grading machine for wet lime-ash equably by pump or feeding machine.
The described lime-ash that vapourizing furnace is discharged comprises thick slag, thin slag and thin ash, and described lime-ash is the dry ash slag, feeds sieve apparatus or grading machine equably by feeding machine or gas delivery equipment.
Described lime-ash feeds sieve apparatus or grading machine by pump or feeding machine or gas delivery equipment, through wet method or dry screening or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content, the fine fraction product that carbon content is low concentrates or dehydration or the final lime-ash of conduct after fly-ash separator is collected through sedimentation.
Advantage of the present invention is: this method technology is simple, cost is low, when reclaiming a large amount of valuable resources, has solved the residue contamination problem again.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment 1,
The ash content that vapourizing furnace is discharged is 55% wet lime-ash, thick slag, thin slag and thin ash mix, feed sieve apparatus with the slag stock pump, through wet sieving, obtain the low fine fraction product (ash content is 70%) of high coarse fraction product of carbon content (ash content is 25%) and carbon content, the coarse fraction product that carbon content is high is further used as the gasified raw material recycling, the fine fraction product that carbon content is low, and the final lime-ash of conduct is as the raw material of producing brick after sedimentation concentrates or dewaters.
Embodiment 2
The ash content that coal gasifier is discharged is 68% dry ash slag, thick slag, thin slag and thin ash mix, feed sieve apparatus equably by feeding machine or gas delivery equipment, through dry screening, obtain the low fine fraction product (ash content is 73%) of high coarse fraction product of carbon content (ash content is 30%) and carbon content, the fine fraction product that carbon content is low is used as the raw material of producing brick as final lime-ash after fly-ash separator is collected.
Claims (4)
1, the recovery method of carbon in a kind of slag from gasifying furnace, it is characterized in that: with the lime-ash of vapourizing furnace discharge, feed sieve apparatus or grading machine by pump or feeding machine or gas delivery equipment, through wet method or dry screening or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content.
2, the recovery method of carbon in a kind of slag from gasifying furnace according to claim 1, it is characterized in that: with the lime-ash of vapourizing furnace discharge, comprise thick slag, thin slag and thin ash, described lime-ash feeds sieve apparatus or grading machine for wet lime-ash equably by pump or feeding machine.
3, the recovery method of carbon in a kind of slag from gasifying furnace according to claim 1, it is characterized in that: with the lime-ash of vapourizing furnace discharge, comprise thick slag, thin slag and thin ash, described lime-ash is the dry ash slag, feeds sieve apparatus or grading machine equably by feeding machine or gas delivery equipment.
4, the recovery method of carbon in a kind of slag from gasifying furnace according to claim 1, it is characterized in that: described lime-ash feeds sieve apparatus or grading machine by pump or feeding machine or gas delivery equipment, through wet method or dry screening or classification, obtain high coarse fraction product of carbon content and the low fine fraction product of carbon content, the fine fraction product that carbon content is low concentrates or dehydration or the final lime-ash of conduct after fly-ash separator is collected through sedimentation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910183787 CN101638591A (en) | 2009-08-11 | 2009-08-11 | Recovery method of carbon in slag from gasifying furnace |
| CN201010162509.8A CN101870896B (en) | 2009-08-11 | 2010-04-12 | Recovery method of carbon in slag from gasifying furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910183787 CN101638591A (en) | 2009-08-11 | 2009-08-11 | Recovery method of carbon in slag from gasifying furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101638591A true CN101638591A (en) | 2010-02-03 |
Family
ID=41613771
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910183787 Pending CN101638591A (en) | 2009-08-11 | 2009-08-11 | Recovery method of carbon in slag from gasifying furnace |
| CN201010162509.8A Expired - Fee Related CN101870896B (en) | 2009-08-11 | 2010-04-12 | Recovery method of carbon in slag from gasifying furnace |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010162509.8A Expired - Fee Related CN101870896B (en) | 2009-08-11 | 2010-04-12 | Recovery method of carbon in slag from gasifying furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101638591A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777546A (en) * | 2019-02-26 | 2019-05-21 | 通用电气神华气化技术有限公司 | Gasify ash comprehensive utilization system and method |
| CN110548749A (en) * | 2019-09-25 | 2019-12-10 | 中国矿业大学(北京) | Novel method for grading and quality-grading utilization of coal gasification ash |
| CN110586622A (en) * | 2019-09-24 | 2019-12-20 | 新疆天业（集团）有限公司 | Method for comprehensively utilizing gasification furnace slag resources |
| CN110624506A (en) * | 2019-10-24 | 2019-12-31 | 陕西利人之星环保科技有限公司 | A method of using coal gasification slag to prepare water purifying agent and obtained water purifying agent |
| CN111644264A (en) * | 2020-06-16 | 2020-09-11 | 太原理工大学 | Gasification slag gravity-magnetic combined separation process |
| CN111659527A (en) * | 2020-06-16 | 2020-09-15 | 太原理工大学 | Gasification slag water medium cyclone gravity carbon ash separation device and method |
| CN111922026A (en) * | 2019-05-13 | 2020-11-13 | 天津城建大学 | Incineration fly ash triboelectric separation treatment equipment and method |
| CN111961492A (en) * | 2020-08-15 | 2020-11-20 | 新疆新业能源化工有限责任公司 | Tar residue resource utilization process |
| CN114798149A (en) * | 2022-05-06 | 2022-07-29 | 太原理工大学 | Method for sorting carbon residue from carbon-containing coal ash and airflow sorting system |
| CN115555383A (en) * | 2022-09-22 | 2023-01-03 | 四川锐源能环科技有限公司 | Method for producing sandstone aggregate by using coal gasification ash |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533300A (en) * | 2011-12-31 | 2012-07-04 | 山西沁新能源集团股份有限公司 | Clean-type coke byproduct high-ash coke powder industrial purifying device for heat recovery coke furnace |
| CN105964409A (en) * | 2016-05-19 | 2016-09-28 | 康洪强 | Method for treating fine slag of coal gasification device |
| CN107952588A (en) * | 2016-10-14 | 2018-04-24 | 中国石油化工股份有限公司 | The technique that carbon is recycled in coal gasification lime-ash |
| CN107641537B (en) * | 2017-09-28 | 2018-09-21 | 陕西融泰能源控股有限公司 | A kind of slag of coal gasification purifying process and the system for realizing its technique |
| CN110976075B (en) * | 2019-12-20 | 2021-11-26 | 郑州大学 | Method for extracting carbon and reducing ash by coarse grain tailing discarding and fine grain flotation of gasified slag |
| CN111644263B (en) * | 2020-06-16 | 2022-04-12 | 太原理工大学 | Combined separation process and device for realizing carbon-ash separation of gasified slag |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3733334C2 (en) * | 1987-10-02 | 1994-12-22 | Noell Gmbh | Method and device for processing fly ash |
| JP3233907B2 (en) * | 1998-10-02 | 2001-12-04 | 日本磁力選鉱株式会社 | How to treat shredder dust dry matter |
| CN201197963Y (en) * | 2008-04-07 | 2009-02-25 | 佛山市顺德区奇胜实业有限公司 | Fly ash flotation carbon production apparatus |
| CN101502820A (en) * | 2008-10-09 | 2009-08-12 | 湖南君毅科技发展有限公司 | Method for floatation of concentrate substance and mine tailing ash from mineral powder ash under 0.5mm |
| CN101486014B (en) * | 2009-02-27 | 2012-04-25 | 杨子毅 | Gravity separation spiral chute coal dressing device and method for gravity separation of clean coal by applying spiral chute |
-
2009
- 2009-08-11 CN CN 200910183787 patent/CN101638591A/en active Pending
-
2010
- 2010-04-12 CN CN201010162509.8A patent/CN101870896B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109777546A (en) * | 2019-02-26 | 2019-05-21 | 通用电气神华气化技术有限公司 | Gasify ash comprehensive utilization system and method |
| CN111922026A (en) * | 2019-05-13 | 2020-11-13 | 天津城建大学 | Incineration fly ash triboelectric separation treatment equipment and method |
| CN110586622A (en) * | 2019-09-24 | 2019-12-20 | 新疆天业（集团）有限公司 | Method for comprehensively utilizing gasification furnace slag resources |
| CN110548749A (en) * | 2019-09-25 | 2019-12-10 | 中国矿业大学(北京) | Novel method for grading and quality-grading utilization of coal gasification ash |
| CN110624506A (en) * | 2019-10-24 | 2019-12-31 | 陕西利人之星环保科技有限公司 | A method of using coal gasification slag to prepare water purifying agent and obtained water purifying agent |
| CN110624506B (en) * | 2019-10-24 | 2022-04-08 | 陕西利人之星环保科技有限公司 | Method for preparing water purifying agent using coal gasification slag and obtained water purifying agent |
| CN111659527A (en) * | 2020-06-16 | 2020-09-15 | 太原理工大学 | Gasification slag water medium cyclone gravity carbon ash separation device and method |
| CN111644264A (en) * | 2020-06-16 | 2020-09-11 | 太原理工大学 | Gasification slag gravity-magnetic combined separation process |
| CN111659527B (en) * | 2020-06-16 | 2022-04-08 | 太原理工大学 | Gasification slag water medium cyclone gravity carbon ash separation device and method |
| CN111644264B (en) * | 2020-06-16 | 2022-04-08 | 太原理工大学 | A heavy-magnetic combined separation process for gasification slag |
| CN111961492A (en) * | 2020-08-15 | 2020-11-20 | 新疆新业能源化工有限责任公司 | Tar residue resource utilization process |
| CN114798149A (en) * | 2022-05-06 | 2022-07-29 | 太原理工大学 | Method for sorting carbon residue from carbon-containing coal ash and airflow sorting system |
| CN114798149B (en) * | 2022-05-06 | 2023-07-21 | 太原理工大学 | Method for Separating Residual Carbon from Charcoal Coal Ash and Slag and Air Separation System |
| CN115555383A (en) * | 2022-09-22 | 2023-01-03 | 四川锐源能环科技有限公司 | Method for producing sandstone aggregate by using coal gasification ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101870896A (en) | 2010-10-27 |
| CN101870896B (en) | 2015-04-01 |
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Open date: 20100203 |