CN100496673C - Composite sulfur fixing agent - Google Patents
Composite sulfur fixing agent Download PDFInfo
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- CN100496673C CN100496673C CNB2004100280865A CN200410028086A CN100496673C CN 100496673 C CN100496673 C CN 100496673C CN B2004100280865 A CNB2004100280865 A CN B2004100280865A CN 200410028086 A CN200410028086 A CN 200410028086A CN 100496673 C CN100496673 C CN 100496673C
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- sulfur
- fixing agent
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Abstract
The invention relates a kind of high-temperature complex fixing sulfur, which can decline the pollution of sulfur dioxide in industrial exhaust gas and decline endangerment of acid rain. The invention can be achieves by that compound with a stated proportion of fixing sulfur, an additive and an aid additive and then elaborate by the certain procedure. In the condition of 1200 centigrade, the addition of fixing sulfur can make the fix sulfur effect of burning coal up to 67%, make the fix sulfur effect of type coal up to 78%, and make the fix sulfur of calcium puff in kiln up to more than 80%. Moreover, the main products of the invention are all composed with native mineral, and it has the predominance of convenient origin, low costs and so on. So it especially has virtual value and potential of extending market.
Description
Technical field
The present invention relates to the air pollution control technique field, specifically relate to a kind of high temperature compound sulphur-fixing agent that reduces the sulfur dioxide pollution in the industrial waste gas and alleviate acid rain harm.
Background technology
Up to now, the technology of coal combustion and sulfur fixation nearly more than 20 kinds, has all played effect preferably aspect coal combustion and sulfur fixation, played due effect to improving atmosphere quality.But no matter how good the effect of its announcement is, because the sulphur-fixing agent cost is too high, or owing to limit by the flammability the subject of knowledge and the object of knowledge, it is reported that coal-fired actual solid sulphur efficiency is no more than 60%, if when being used for moulded coal, actual solid sulphur efficiency is no more than 70%, and its compressive strength is poor, and combustibility is undesirable; In-furnace calcium spraying-afterbody humidification desulfurization rate is not higher than 75%.
Summary of the invention
The objective of the invention is to shortcoming, a kind of high temperature compound sulphur-fixing agent that reduces the sulfur dioxide pollution in the industrial waste gas and alleviate acid rain harm is provided at the prior art existence.Use high-temperature desulfurization agent of the present invention can make captured sulfur result that fire coal has been reached 67%, moulded coal has been reached 78%, in-furnace calcium spraying is reached more than 80%.And sulphur-fixing agent cost of the present invention reduces about 50% than existing sulphur-fixing agent, meets China's actual conditions, and atmosphere SO 2 pollutes and the harm of acid rain has significance for reducing and alleviating.
For achieving the above object, the present invention has taked following technical scheme:
A kind of compound sulphur-fixing agent, by mass percentage, be made up of following material: agstone or carbide slag 70～90, aluminium vanadine 5～25 helps additive (contain potassium or contain strontium mineral for natural) 1～5.
A is mainly potassic feldspar, sericite, illite, potash etc.;
B is celestine, strontium feldspar, strontium chloride etc.
Weight consumption between A and the B is than being 1:0.5～1:2.
A kind of compound sulphur-fixing agent, the percentage meter is made up of following material: agstone 93, aluminium vanadine 5, potassic feldspar 1, celestine 1 by weight.
As a kind of preferred, described compound sulphur-fixing agent by mass percentage, is made up of following material: carbide slag 88, aluminium vanadine 8, sericite 2, celestine 2.
Preferred as another kind, described compound sulphur-fixing agent by mass percentage, is made up of following material: agstone 87, aluminium vanadine 10, potash 1.5, strontium feldspar 1.5.
Agstone or carbide slag, aluminium vanadine, help additive A and B to be ground into the powder of 100 order granularities, wherein help additive A can reduce the sintering of high-temperature oxydation calcium, help additive B can promote lime stone, aluminium vanadine and SO
2Reaction generates resistant to elevated temperatures resistant mineral phase.Four kinds of components mix in proportion, and are packaged into bag.
When being processed into moulded coal, dispose by following mass percent: coal dust 75～96%, high temperature compound sulphur-fixing agent and clay 4～25%, three's mixing add suitable quantity of water and are pressed into moulded coal, can do coal-fired the use; If when being used for the in-furnace calcium spraying desulfurization, dispose by following mass percent: coal dust 90～96%, high temperature compound sulphur-fixing agent 4～10% can directly be sprayed into for four jiaos by the burner hearth top after mixing.
Compared with the prior art, the present invention has following beneficial effect:
(1) the coal combustion and sulfur fixation effect 67%, and the capturing sulfur briquette effect reaches 78%, and the in-furnace calcium spraying sulfur-fixing rate is more than 80%;
(2) form by natural minerals mostly, have convenient sources, with low cost, reduce by 50% than existing sulphur-fixing agent cost;
(3) obviously improved the compression strength of moulded coal;
(4) during in-furnace calcium spraying if be furnished with the afterbody humidifying device, desulfurized effect obviously improves, and need not big scrap build, initial investment is few, operating cost is low.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
The used raw coal sulfur content 0.75% of certain FCFC, high temperature compound sulphur-fixing agent proportioning is: agstone 93%, aluminium vanadine 5% helps additive A and B to be respectively 1.0%, and wherein A is a potassic feldspar, and B is a celestine.With sulfur content is 20000 kilograms in 0.75% raw coal, 1432 kilograms high temperature compound sulphur-fixing agent mixing.This fire coal and the equal sulfur content that does not add any sulphur-fixing agent is coal-fired and add the fire coal of equal sulfur content of the common sulphur-fixing agent of calcium base, in same coal-burning boiler, burn, measure the concentration of emission of its sulfur dioxide respectively.Test result is: the average emission concentration of sulfur dioxide that does not add the fire coal of any sulphur-fixing agent is: 1395.7 milligrams/cubic metre, the average emission concentration of sulfur dioxide of fire coal that adds the common sulphur-fixing agent of calcium base is: 977.8 milligrams/cubic metre, and the average emission concentration of sulfur dioxide that adds the fire coal of this kind high temperature compound sulphur-fixing agent is: 445.2 milligrams/cubic metre, sulfur-fixing rate is 68.1%.
Embodiment 2
The used raw coal sulfur content of certain Metallurgical Factory is 1.28%, and high temperature compound sulphur-fixing agent proportioning is: carbide slag 88%, and aluminium vanadine 8%, helping additive A and B respectively is 2%, and wherein A is a sericite, and B is a celestine.With sulfur content is 2000 kilograms in 1.28% raw coal, 235 kilograms of high temperature compound sulphur-fixing agents, and surplus is that clay mixes, and adds suitable quantity of water again and is processed into moulded coal.With the common moulded coal of processing of this moulded coal with the equal sulfur content that does not increase temperature compound sulphur-fixing agent, fixed number is measured the concentration of emission of its sulfur dioxide respectively in fixing air return stove internal combustion.Test result is: common moulded coal sulfur dioxide average emission concentration is 1852.5 milligrams/cubic metre, and the compound solid sulphur formed coal sulfur dioxide of high temperature average emission concentration is 407.6 milligrams/cubic metre, and sulfur-fixing rate is 78.0%.
Embodiment 3
The used raw coal sulfur content of certain paper plant is 0.64%, and high temperature compound sulphur-fixing agent quality proportioning is: agstone 87%, aluminium vanadine 10%, help additive A and B each 1.5%, wherein A is a potash, B is the strontium feldspar.After mixing 3000 kilograms of high temperature compound sulphur-fixing agents are evenly sprayed in the coal furnace by four jiaos of places of upper furnace, addition is 53 kilograms of/ton coals, and at boiler tail humidifying device is installed.Compare with the pulverized coal friring that does not increase temperature compound sulphur-fixing agent of equal sulfur content, measuring sulfur dioxide average emission concentration respectively is 198.7 milligrams/cubic metre and 1056.3 milligrams/cubic metre, and sulfur-fixing rate is 81.19%.
Claims (4)
1, a kind of compound sulphur-fixing agent is characterized in that by mass percentage, is made up of following material:
Agstone or carbide slag 70～90
Aluminium vanadine 5～25
Help additive A and B 1～5
Described A is mainly potassic feldspar, sericite, illite or potash;
Described B is celestine, strontium feldspar or strontium chloride;
Weight consumption between A and the B is than being 1:0.5～1:2.
2, a kind of compound sulphur-fixing agent is characterized in that by mass percentage, is made up of following material:
Agstone 93
Aluminium vanadine 5
Potassic feldspar 1
Celestine 1.
3, compound sulphur-fixing agent according to claim 1 is characterized in that by mass percentage, is made up of following material:
Carbide slag 88
Aluminium vanadine 8
Sericite 2
Celestine 2.
4, compound sulphur-fixing agent according to claim 1 is characterized in that by mass percentage, is made up of following material:
Agstone 87
Aluminium vanadine 10
Potash 1.5
Strontium feldspar 1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100280865A CN100496673C (en) | 2004-07-15 | 2004-07-15 | Composite sulfur fixing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100280865A CN100496673C (en) | 2004-07-15 | 2004-07-15 | Composite sulfur fixing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1593722A CN1593722A (en) | 2005-03-16 |
| CN100496673C true CN100496673C (en) | 2009-06-10 |
Family
ID=34664140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100280865A Expired - Fee Related CN100496673C (en) | 2004-07-15 | 2004-07-15 | Composite sulfur fixing agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN100496673C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134521B (en) * | 2010-01-21 | 2013-10-16 | 泰山学院 | Method for producing sulfur-fixing agent and sulfur-fixing briquette by using waste dry battery |
| CN105505516A (en) * | 2015-11-27 | 2016-04-20 | 广西阔能霸能源科技开发有限责任公司 | Fire coal synergist containing 75% ferrosilicon powder and preparation method thereof |
| CN105400566A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Energy-saving synergist for briquette and preparation method for synergist |
| CN105400565A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Environment-friendly coal combustion synergist and preparation method thereof |
| CN105400568A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Coal synergist containing potassium feldspar and preparation method thereof |
| CN105505518A (en) * | 2015-11-27 | 2016-04-20 | 广西阔能霸能源科技开发有限责任公司 | Fire coal synergist containing sodium peroxycarbonate and preparation method thereof |
| CN105368536A (en) * | 2015-11-27 | 2016-03-02 | 广西阔能霸能源科技开发有限责任公司 | Ferrocene-containing fuel coal synergist and preparation method therefor |
| CN105400564A (en) * | 2015-11-27 | 2016-03-16 | 广西阔能霸能源科技开发有限责任公司 | Coal synergist containing celestite and preparation method of coal synergist |
| CN105733634B (en) * | 2016-02-24 | 2019-04-05 | 太原理工大学 | The calcium base potassium magnesium silicon compound additive and preparation method of raising domestic coke high-temperature fixed sulfur effect and application |
| CN107057796A (en) * | 2017-06-09 | 2017-08-18 | 太原理工大学 | A kind of high-temperature fixed sulfur additive and its preparation method and application |
| CN113980714B (en) * | 2021-11-05 | 2023-08-22 | 济南大学 | Preparation method of desulfurization and denitrification water-soluble coal-fired catalyst |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172151A (en) * | 1997-07-03 | 1998-02-04 | 张斯恒 | Bunker coal combustion adjuvant suitable for many kinds of coal |
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2004
- 2004-07-15 CN CNB2004100280865A patent/CN100496673C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1172151A (en) * | 1997-07-03 | 1998-02-04 | 张斯恒 | Bunker coal combustion adjuvant suitable for many kinds of coal |
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| CN1593722A (en) | 2005-03-16 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: DONGGUAN ACE STARS KNITTED PRINT LTD. Assignor: South China University of Technology Contract record no.: 2011440000722 Denomination of invention: Composite sulfur-fixing agent and application thereof Granted publication date: 20090610 License type: Exclusive License Open date: 20050316 Record date: 20110719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20120715 |