CN1492031A - Additive for raw coal burning suporting and desulfurizing - Google Patents
Additive for raw coal burning suporting and desulfurizing Download PDFInfo
- Publication number
- CN1492031A CN1492031A CNA031336329A CN03133632A CN1492031A CN 1492031 A CN1492031 A CN 1492031A CN A031336329 A CNA031336329 A CN A031336329A CN 03133632 A CN03133632 A CN 03133632A CN 1492031 A CN1492031 A CN 1492031A
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- China
- Prior art keywords
- raw coal
- additive
- coal
- desulfurizing
- boiler
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- 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.)
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Abstract
The additive for supporting burning of raw coal and desulfurizing consists of combusrant, which comprises oxidant and catalyst and the has the main components including potassium carbonate, ferric oxide and copper oxide; and composite calcium sulfur fixing agent, which has the main components of potassium carbonate and calcium hydroxide. Adding the additive into raw coal can lower ignition temperature, make coal burn completely, make sulfur smelt in slag in the form of salt, save raw coal, lower cost and reduce environmental pollution caused by sulfur and the damage to boiler.
Description
Technical field:
The present invention relates to the advanced treatment of the fuel in a kind of boiler combustion system, particularly a kind of additive that is used for the raw coal combustion-supporting desulfurization.
Background technology:
China is that coal is the country of main energy sources structure, and coal accounts for about 80% of energy structure, is maximum in the world coal producer and coal-fired state.Yet, when using coal, closely there is 90% coal directly to be used without advanced treatment, though domestic units concerned have carried out development and exploitation in this respect, but mostly be the modified form of external prior art, have only for breadboard data, differ bigger with actual, also be to have continued to use method such as Wingdale merely aspect the solid sulphur.Because usage quantity is big, also be to have continued to use method such as Wingdale merely aspect the solid sulphur.Because usage quantity is big, influenced the thermo-efficiency of boiler, therefore be difficult to be accepted by market.
Technical scheme:
The object of the present invention is to provide a kind of additive that is used for the raw coal combustion-supporting desulfurization, present former coal additive is filled a prescription and the screening and the improvement of proportioning, make full use of the characteristics of the different properties between different additive and the mutual restriction of lacking, based on meager coal, develop novel oxygenant, catalyzer and compound calcium sulphur-fixing agent, reduce the kindling temperature of raw coal, make raw coal fully burning in " microexplosion ", and make sulphur composition in the raw coal, be fixed in the slag more completely with the form of salt.
The object of the present invention is achieved like this, in raw coal, add the compound calcium sulphur-fixing agent of the ignition dope of forming with 1.5～2.5% (ratio) oxygenants and catalyzer and 2～3% (certain proportion), the major ingredient of above oxygenant and catalyzer is salt of wormwood, ferric oxide and cupric oxide, and the major ingredient of compound calcium sulphur-fixing agent is magnesium oxide and calcium hydroxide.
During work, the oxygenant here is to make raw coal reduce kindling temperature, improves temperature of combustion, promotes burning.Simultaneously, because oxygenant initial decomposition temperature difference (180 ℃～1200 ℃), thereby guaranteed oxygen replenishment in the burning whole process, and catalyzer produces " microexplosion " after raw coal is caught fire, make the coal seam bulk, stirred the gas between coal seam and the coal seam, oxygen has been contacted with raw coal increase, the burning that makes former combustion is more fully with thorough.Because the effect of the compound calcium sulphur-fixing agent in the additive makes the element sulphur in the raw coal generate solid salt in combustion processes in the slag of boiler, thereby reduced the sulphur emissions in the boiler smoke, protect environment in addition, realized the efficient and cleanburning of raw coal.
The present invention owing to adopted in raw coal add ignition dope that oxygenant and catalyzer form and compound calcium sulphur-fixing agent, and employed various additive gets material extensively, low price is convenient for production, is easy to storing.After adding additive in the raw coal, reduced kindling temperature, raw coal combustion is got more fully thoroughly, made sulphur in the raw coal in combustion processes, be fused to slag simultaneously and hit with the form of salt.Saved raw coal, reduced cost, reduced the pollution of sulphur again simultaneously, reduced infringement boiler to atmospheric environment.
Embodiment:
Carried out using the raw coal of this additive at boiler, the compound calcium sulphur-fixing agent of the ignition dope and 2～3% (certain proportion) that its adding proportion 1.5～2.5% (ratio) oxygenant and catalyzer are formed, the combustion conditions of boiler has obtained tangible improvement, flame is limpid bright, the thermo-efficiency of boiler has improved nearly 3.5 percentage points, fractional energy savings is 2.5%, and alleviated the coking phenomenon in the boiler combustion process, not only reduced working strength of workers (owing to the ature of coal reason, produce coking during boiler combustion, need manually go to become flexible), and exerting oneself of boiler is improved.
Claims (2)
1, a kind of additive that is used for the raw coal combustion-supporting desulfurization is characterized in that: the compound calcium sulphur-fixing agent that adds the ignition dope of forming with 1.5～2.5% (ratio) oxygenants and catalyzer and 2～3% (certain proportion) in raw coal.
2, a kind of additive that is used for the raw coal combustion-supporting desulfurization according to claim 1, it is characterized in that: the major ingredient of oxygenant and catalyzer is salt of wormwood, ferric oxide and cupric oxide, the major ingredient of compound calcium sulphur-fixing agent is magnesium oxide and calcium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031336329A CN1492031A (en) | 2003-07-30 | 2003-07-30 | Additive for raw coal burning suporting and desulfurizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031336329A CN1492031A (en) | 2003-07-30 | 2003-07-30 | Additive for raw coal burning suporting and desulfurizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1492031A true CN1492031A (en) | 2004-04-28 |
Family
ID=34239892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031336329A Pending CN1492031A (en) | 2003-07-30 | 2003-07-30 | Additive for raw coal burning suporting and desulfurizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1492031A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311835A (en) * | 2011-08-09 | 2012-01-11 | 圣永业（厦门）能源集团股份有限公司 | Fire coal synergist |
| CN102311834A (en) * | 2011-08-09 | 2012-01-11 | 圣永业（厦门）能源集团股份有限公司 | Fire coal sulfur fixation, smoke abatement and denitration agent |
| CN101220313B (en) * | 2007-12-14 | 2012-06-20 | 华南理工大学 | Multifunctional fire coal catalyst and method for producing the same |
| CN107694322A (en) * | 2017-11-06 | 2018-02-16 | 嘉兴中泰节能科技有限公司 | A kind of furnace sulfur fixation coal-saving agent |
-
2003
- 2003-07-30 CN CNA031336329A patent/CN1492031A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101220313B (en) * | 2007-12-14 | 2012-06-20 | 华南理工大学 | Multifunctional fire coal catalyst and method for producing the same |
| CN102311835A (en) * | 2011-08-09 | 2012-01-11 | 圣永业（厦门）能源集团股份有限公司 | Fire coal synergist |
| CN102311834A (en) * | 2011-08-09 | 2012-01-11 | 圣永业（厦门）能源集团股份有限公司 | Fire coal sulfur fixation, smoke abatement and denitration agent |
| CN102311834B (en) * | 2011-08-09 | 2013-08-14 | 圣永业（厦门）能源集团股份有限公司 | Fire coal sulfur fixation, smoke abatement and denitration agent |
| CN102311835B (en) * | 2011-08-09 | 2013-09-04 | 圣永业（厦门）能源集团股份有限公司 | Fire coal synergist |
| CN107694322A (en) * | 2017-11-06 | 2018-02-16 | 嘉兴中泰节能科技有限公司 | A kind of furnace sulfur fixation coal-saving agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |