CN102786999A - Solid fuel modification additive - Google Patents
Solid fuel modification additive Download PDFInfo
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- CN102786999A CN102786999A CN2012102764400A CN201210276440A CN102786999A CN 102786999 A CN102786999 A CN 102786999A CN 2012102764400 A CN2012102764400 A CN 2012102764400A CN 201210276440 A CN201210276440 A CN 201210276440A CN 102786999 A CN102786999 A CN 102786999A
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Abstract
The invention discloses a solid fuel modification additive, which comprises the following ingredients in percentage by mass: 0.1 to 99.8 percent of silicon dioxide, 0.1 to 99.8 percent of aluminium oxide, 0.01 to 50 percent of titanium dioxide and 0.01 to 5 percent of copper compounds, wherein the copper compounds refer to compounds containing copper ions. Modification compounds and compounds for improving the ash melting point are added into fuel according to different proportions, the melting point of products including ash, slag and the like generated after the fuel combustion is improved, meanwhile, the crystallization form is changed, the coking and contamination of molten combustion products in the high-temperature combustion process of the fuel at a furnace hearth and a heating surface can be effectively relieved and avoided, meanwhile, the ash slag structures become porous, crystal, loose and fragile, and the clearing is convenient.
Description
Technical field
The present invention relates to a kind of property-modifying additive, refer in particular to a kind of solid fuel property-modifying additive.
Background technology
Solid fuel such as coal, when burning, inorganic mineral and metallorganics in the coal have formed residue, and this residue is exactly usually said coal ash.Coal firing boiler is because hot strength is big, temperature of combustion is high, and the coal ash of fusion and semi-melting state can deposit, be bonded on the boiler surface with the form of coking, contamination usually.Because the lime-ash thermal conductivity is low, thermal resistance is big, slagging scorification, contamination are in case formation can reduce caloric receptivity in the boiler stove; Improve stove internal combustion temperature, strengthen slagging scorification, contamination process, reduce boiler efficiency; Thereby overall thermal equilibrium process in the destruction stove; Have a strong impact on boiler output, even can make boiler be compelled blowing out, directly influence security, economy and the safety of boiler operatiopn.
Boiler surface slagging scorification, contamination are a kind of very complex phenomena, and influence factor is a lot.Result of study shows that the formation of components of coal ash is to influence the coal ash melting characteristic, causes the basic factor of the serious slagging scorification of boiler, contamination.Because the composition of coal ash is complicated, the sodium oxide in the coal ash, potassium oxide can distil in high temperature, exist with gaseous form, can on heating surface, condense after temperature reduces, and form the very low complex vitriolate of fusing point with sulphur in the flue gas.Though the red oxide of iron fusing point is high, still very easily form the fayalite and the hereynite of low melting glass respectively with silicon-dioxide and aluminium sesquioxide.These three kinds of compositions have played negative influence, and the every increase by 1% of content approximately reduces by 15～18 ℃ of softening temperatures in ash.
Thus; Develop a kind of slagging effect and composition of proportions that can be different according to components of coal ash; Change components of coal ash, thereby improve the fusing point and the structural strength that lowers slagging scorification, contamination of coal ash, the solid fuel property-modifying additive that fundamentally changes coal ash slagging scorification, contamination characteristic is badly in need of.
Summary of the invention
The technical problem that the present invention will solve provides a kind of solid fuel property-modifying additive, and the composition that this property-modifying additive can effectively change coal ash constitutes, and improves the fusing point of coal ash; Change cindery formation structure; Avoid or alleviate boiler scaling and stain phenomenon, simultaneously, change the coal ash particle crystallization and form; Impel slagging scorification, contamination structure to become loose, be easy to remove through blowing ash.
The technical problem that the present invention will solve is realized by following scheme: a kind of solid fuel property-modifying additive; It is characterized in that: said additive each component and shared mass percent are: the compound 0.001～5% of silicon-dioxide 0.1～99.8%, aluminium sesquioxide 0.1～99.8%, titanium oxide 0.01～50%, copper; Wherein, The compound of copper is meant the compound of copper ions, can be a kind of of cupric nitrate, cupric chloride, copper sulfate, COPPER OXYCHLORIDE 37,5 etc.
Above-mentioned property-modifying additive is directly sneaked in the coal with Powdered solid granulates form even blend by a certain percentage, sends into burner hearth and participates in the fuel combustion reaction, also can spray into and participate in combustion reactions in the stove.
Advantage of the present invention: additive adds with the powdery solid granules form.Investing method is can directly send into separately to participate in combustion reactions in the boiler furnace, or sneaks into the mode in the coal.Composition according to the solid fuel ignition product constitutes; The present invention changes its crystallization mode simultaneously through in fuel, press compound and the modified compound that different ratios adds the raising ash fusion point, improve the fusing point of products such as the ash that generates after the fuel combustion, slag; Effectively alleviate and avoid in the fuel high-temp combustion process fused products of combustion in coking, the contamination of burner hearth, heating surface; Simultaneously, make the lime-ash structure porous, loose, frangible that becomes, be convenient to remove.
Embodiment
Embodiment: make the 1000kg additive, wherein silicon-dioxide 480kg, aluminium sesquioxide 500kg, titanium oxide 18kg, cupric chloride 2kg.
Claims (1)
1. solid fuel property-modifying additive; It is characterized in that: said additive each component and shared mass percent are: the compound 0.001～5% of silicon-dioxide 0.1～99.8%, aluminium sesquioxide 0.1～99.8%, titanium oxide 0.01～50%, copper; Wherein, the compound of copper is meant the compound of copper ions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102764400A CN102786999A (en) | 2012-07-24 | 2012-07-24 | Solid fuel modification additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102764400A CN102786999A (en) | 2012-07-24 | 2012-07-24 | Solid fuel modification additive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102786999A true CN102786999A (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102764400A Pending CN102786999A (en) | 2012-07-24 | 2012-07-24 | Solid fuel modification additive |
Country Status (1)
| Country | Link |
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| CN (1) | CN102786999A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542891A (en) * | 2015-12-24 | 2016-05-04 | 高秀山 | Silicon fuel and preparation method thereof |
| CN107062277A (en) * | 2017-02-15 | 2017-08-18 | 上海浦东路桥建设股份有限公司 | Improve method and medicament that biomass boiler stains corrosion |
| WO2023177311A1 (en) | 2022-03-14 | 2023-09-21 | Latocha Elzbieta | A method of combusting coal solid fuels, an additive to coal solid fuels and a method of manufacturing an additive to coal solid fuels |
Citations (2)
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|---|---|---|---|---|
| KR100402542B1 (en) * | 1996-12-30 | 2003-12-18 | 두산중공업 주식회사 | Incinerating method of waste by fluidized bed |
| CN101775325A (en) * | 2009-01-14 | 2010-07-14 | 张保森 | Coal composite sulfur fixing agent |
-
2012
- 2012-07-24 CN CN2012102764400A patent/CN102786999A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100402542B1 (en) * | 1996-12-30 | 2003-12-18 | 두산중공업 주식회사 | Incinerating method of waste by fluidized bed |
| CN101775325A (en) * | 2009-01-14 | 2010-07-14 | 张保森 | Coal composite sulfur fixing agent |
Non-Patent Citations (3)
| Title |
|---|
| 《华中科技大学学报（自然科学版）》 20040108 游小清等 "CuO/gamma-Al2O3吸收SO2动力学模型试验研究" 45-48 1 第31卷, 第2期 * |
| 李培生等: "《固体废物的焚烧和热解》", 31 March 2006, 中国环境科学出版社, article "固体废物燃烧过程中污染物的形成、测量和控制", pages: 215-216 * |
| 游小清等: ""CuO/γ-Al2O3吸收SO2动力学模型试验研究"", 《华中科技大学学报（自然科学版）》, vol. 31, no. 2, 8 January 2004 (2004-01-08), pages 45 - 48 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105542891A (en) * | 2015-12-24 | 2016-05-04 | 高秀山 | Silicon fuel and preparation method thereof |
| CN105542891B (en) * | 2015-12-24 | 2018-09-18 | 高秀山 | A kind of silicon fuel and preparation method thereof |
| CN107062277A (en) * | 2017-02-15 | 2017-08-18 | 上海浦东路桥建设股份有限公司 | Improve method and medicament that biomass boiler stains corrosion |
| WO2023177311A1 (en) | 2022-03-14 | 2023-09-21 | Latocha Elzbieta | A method of combusting coal solid fuels, an additive to coal solid fuels and a method of manufacturing an additive to coal solid fuels |
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Application publication date: 20121121 |