CN102851100B - A kind of boiler decoking agent - Google Patents
A kind of boiler decoking agent Download PDFInfo
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- CN102851100B CN102851100B CN201110182659.XA CN201110182659A CN102851100B CN 102851100 B CN102851100 B CN 102851100B CN 201110182659 A CN201110182659 A CN 201110182659A CN 102851100 B CN102851100 B CN 102851100B
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Abstract
A kind of Fire coal boiler liquid decoking agent of the present invention, belongs to coal firing boiler cleanburning, technical field of environmental protection control.It is characterized in that the weight percent of described each component is, separates burnt agent 0.5 ~ 5, oxygenant 5 ~ 25, combustion supporting catalyst 1 ~ 10, sanitas 5 ~ 30, surplus is water.Separate burnt agent can promote focus layer substance combustion and come off; Oxygenant nitrate releasing oxygen under the high temperature conditions, promotes dust stratification and the carbon burning of different sites; Combustion supporting catalyst potassium permanganate and manganese oxide can serve as the carrier that Sauerstoffatom reacts under the high temperature conditions, catalysis coal dust firing.Low melting component in focus layer can be converted into loose high melting compound by sanitas modified nano-alumina or nano magnesia, coking layer can be assisted in removing, high temperature corrosion can be prevented again, life-time service, nano aluminium oxide or nano magnesia can be attached on heating surface, form the micron-sized preservative coat of one deck.
Description
Technical field
The present invention relates to a kind of boiler decoking agent, particularly relating to a kind of decoking agent for removing the coking of coal firing boiler water wall pipeline.
Background technology
Coal firing boiler is in fired coal combustion process, and the coking of water wall pipeline heating surface, mistake, reheater piping dust stratification, boiler heat exchange decrease in efficiency, funnel temperature raises, and energy consumption increases.Pipeline heating surface, easily because coking seriously produces sulphate corrosion, shortens boiler work-ing life etc.These problems can have a strong impact on boiler safety, economical operation above.
Chemical additive is industrial a kind of conventional deashing, decoking, and deashing main at present, decoking additive mainly contain powder-type and the large class of solution-type two.Powder-type additive first usage quantity is large, causes cost high.Second be difficult to during the dosing of powder-type additive ensure that dispensing evenly, must use special chemicals dosing plant.Receive the restriction of some conditions during three uses, fire box temperature will keep being greater than 1200 DEG C, just can produce a desired effect; Solvent-borne type additive usage quantity is few, and cost is lower, and comparatively powder-type additive has dispensing evenly, without advantages such as dead angles.Comprehensive decoking agent patent analyses at present, current liquid decoking agent function singleness, energy-saving effect is not obvious.
China Patent No.: 03132103.8 discloses a kind of and human body boiler decoking agent, primarily of saltpetre, cupric nitrate, magnesium nitrate, aluminum nitrate, boron aqueous acid composition.The patented product mainly utilizes nitrate " microexplosion " under the high temperature conditions to act on deashing, and permanence operation is better, but combustion-supporting without effect to coal dust.The present invention is intended to develop that a kind of ash-cleaning and coke-removing effect is good, the obvious boiler additives product of combustion-supporting effect.
Summary of the invention
Technical problem to be solved by this invention is by a kind of consumption is few, easy to use, cost is low, the decoking agent of safety, good combination property.
In order to solve the problem, technical scheme provided by the present invention is:
A kind of decoking agent, comprise and separate burnt agent, oxygenant, is characterized in that described decoking agent also comprises combustion supporting catalyst, sanitas, the weight percent of described each component is, separates burnt agent 0.5 ~ 5, oxygenant 5 ~ 25, combustion supporting catalyst 1 ~ 10, sanitas 5 ~ 30, surplus is water.
Preferably, the per-cent of each component of described decoking agent is: separate burnt agent 1 ~ 3, oxygenant 10 ~ 20, combustion supporting catalyst 5 ~ 8, sanitas 10 ~ 25, and surplus is water.
Preferably, described oxygenant comprises cupric nitrate, saltpetre, at least one in ammonium nitrate.
Preferably, described combustion supporting catalyst comprises potassium permanganate, at least one in manganese oxide.
Preferably, described sanitas comprises modified nano-alumina, at least one in modified Nano magnesium oxide.
Preferably, described oxygenant comprises cupric nitrate, saltpetre, at least one in ammonium nitrate, described combustion supporting catalyst comprises potassium permanganate, at least one in manganese oxide, described sanitas comprises modified nano-alumina, at least one in modified Nano magnesium oxide.
In the present invention, separate burnt agent and can form submicron order active ion under the high temperature conditions, shortcakeization focus layer, promoting focus layer substance combustion and come off, can remove by blowing ash; Oxygenant nitrate releasing oxygen under the high temperature conditions, can ensure to continue in from low temperature to high temperature range to release oxygen, promotes dust stratification and the carbon burning of different sites; Combustion supporting catalyst potassium permanganate and manganese oxide can not only provide oxygen under the high temperature conditions, more importantly can serve as the carrier of Sauerstoffatom reaction, catalysis coal dust firing.Sanitas modified nano-alumina or nano magnesia are fabulous high temperature ceramic material, low melting component in focus layer can be converted into loose high melting compound, coking layer can be assisted in removing, high temperature corrosion can be prevented again, life-time service decoking agent of the present invention, nano aluminium oxide or nano magnesia can be attached on heating surface, form the micron-sized preservative coat of one deck.
The present invention possesses following advantage: 1. dosage is few, decoking agent consumption be only fuel mass 100,000/to 2/100000ths; 2. easy to use.Without the need to carrying out any transformation to boiler, during use, decoking agent being passed through special medicine machine, utilizing pressurized air to spray into burner hearth; 3. suitability is wide.Good effect is all had to coal firing boiler and fuel industrial boiler; 4. economical.Compared with general decoking agent, for 300MW coal firing boiler, year, cost of use was less than 500,000 yuan, far below other like products; 5. safety, nontoxic, the non-corrosiveness of this product, to the person without harm.
Embodiment
In order to clearly set forth technology contents of the present invention; be described in detail in conjunction with specific embodiments at this; obviously; cited embodiment is the preferred embodiment of the technical program, and the other technologies scheme that those skilled in the art can draw apparently according to disclosed technology contents still belongs to protection scope of the present invention.
Embodiment 1
A kind of decoking agent, its composition and weight percent are: boric acid 0.1, cupric nitrate 15, saltpetre 10, potassium permanganate 2, manganese oxide 1, modified nano-alumina 3, modified Nano magnesium oxide 2, water 66.9.
Embodiment 2
A kind of decoking agent, its composition and weight percent are: boric acid 0.7, cupric nitrate 23, potassium permanganate 2, manganese oxide 3, modified nano-alumina 3.5, modified Nano magnesium oxide 4, water 64.8.
Embodiment 3
A kind of decoking agent, its composition and weight percent are: boric acid 1, saltpetre 16, ammonium nitrate 5, manganese oxide 3, modified nano-alumina 10, water 64.7.
Embodiment 4
A kind of decoking agent, its composition and weight percent are: boric acid 1.9, cupric nitrate 15, ammonium nitrate 5, potassium permanganate 2, modified Nano magnesium oxide 12.5, water 64.6.
Embodiment 5
A kind of decoking agent, its composition and weight percent are: boric acid 2.5, cupric nitrate 7, saltpetre 10, potassium permanganate 1, modified nano-alumina 5, modified Nano magnesium oxide 10, water 64.5.
Embodiment 6
A kind of decoking agent, its composition and weight percent are: boric acid 3, cupric nitrate 10, saltpetre 5, potassium permanganate 5, manganese oxide 5, modified nano-alumina 17.5, water 54.4.
Embodiment 7
A kind of decoking agent, its composition and weight percent are: boric acid 3.7, cupric nitrate 7, saltpetre 6, potassium permanganate 5, manganese oxide 4, modified nano-alumina 10, modified Nano magnesium oxide 10, water 54.3.
Embodiment 8
A kind of decoking agent, its composition and weight percent are: boric acid 4.3, cupric nitrate 7, ammonium nitrate 3, potassium permanganate 4, manganese oxide 4, modified nano-alumina 12.5, modified Nano magnesium oxide 10, water 54.2.
Embodiment 9
A kind of decoking agent, its composition and weight percent are: boric acid 4.5, saltpetre 7, ammonium nitrate 2, potassium permanganate 5, manganese oxide 2, modified nano-alumina 15, modified Nano magnesium oxide 10, water 54.5.
Embodiment 10
A kind of decoking agent, its composition and weight percent are: boric acid 5, cupric nitrate 5, potassium permanganate 6, modified Nano magnesium oxide 30, water 54.
Embodiment 11
A preparation method for decoking agent, according to the component in embodiment 1 ~ 10 and degree mix and blend.
Claims (2)
1. a decoking agent, comprise and separate burnt agent, oxygenant, it is characterized in that described decoking agent also comprises combustion supporting catalyst, sanitas, the weight percent of described each component is, separates burnt agent 0.5 ~ 5, oxygenant 5 ~ 25, combustion supporting catalyst 1 ~ 10, sanitas 5 ~ 30, surplus is water, and described oxygenant comprises cupric nitrate, saltpetre, at least one in ammonium nitrate, described combustion supporting catalyst comprises potassium permanganate, at least one in manganese oxide, described sanitas comprises modified nano-alumina, at least one in modified Nano magnesium oxide.
2. a kind of decoking agent according to claim 1, is characterized in that: the per-cent of each component of described decoking agent is: separate burnt agent 1 ~ 3, oxygenant 10 ~ 20, combustion supporting catalyst 5 ~ 8, sanitas 10 ~ 25, and surplus is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110182659.XA CN102851100B (en) | 2011-07-01 | 2011-07-01 | A kind of boiler decoking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110182659.XA CN102851100B (en) | 2011-07-01 | 2011-07-01 | A kind of boiler decoking agent |
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| Publication Number | Publication Date |
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| CN102851100A CN102851100A (en) | 2013-01-02 |
| CN102851100B true CN102851100B (en) | 2015-08-26 |
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| CN201110182659.XA Expired - Fee Related CN102851100B (en) | 2011-07-01 | 2011-07-01 | A kind of boiler decoking agent |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215100A (en) * | 2013-04-08 | 2013-07-24 | 湖南省湘电试验研究院有限公司 | Boiler decoking agent for 600MW and higher thermal power generator sets |
| CN103215101B (en) * | 2013-04-08 | 2014-07-09 | 湖南省湘电试验研究院有限公司 | Decoking and coal-saving additive for supercritical or super-supercritical boiler |
| CN103254962A (en) * | 2013-04-27 | 2013-08-21 | 晟通科技集团有限公司 | Boiler coke restraining and removing agent |
| CN104312656A (en) * | 2014-07-25 | 2015-01-28 | 王天云 | A decoking coal-saving agent and a using method thereof |
| CN104327904A (en) * | 2014-10-30 | 2015-02-04 | 北京晟辉兴业科技有限公司 | Liquid boiler coking inhibitor |
| CN108059992A (en) * | 2017-11-15 | 2018-05-22 | 绵阳双甘科技有限公司 | A kind of ENERGY-SAVING AGENT FOR and its manufacturing method |
| CN108384597A (en) * | 2018-02-06 | 2018-08-10 | 武汉凯迪绿色能源开发运营有限公司 | Biomass recirculating fluidized bed boiler anti-coking additive and its preparation and application method |
| CN110527574B (en) * | 2019-06-13 | 2021-05-18 | 山东马王芳凤新能源科技有限公司 | Formula and production process of biomass fuel particles |
| CN110982579B (en) * | 2019-12-19 | 2021-04-20 | 湖北美和科技有限公司 | Boiler coking inhibitor and preparation method thereof |
| CN115418258B (en) * | 2022-09-14 | 2024-03-22 | 滁州智慧城市环保科技有限责任公司 | Boiler coking inhibitor and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| CN101333467A (en) * | 2007-06-28 | 2008-12-31 | 詹姆士·肯尼思·桑德斯 | Nano-sized metal and metal oxide particles for more complete fuel combustion |
-
2011
- 2011-07-01 CN CN201110182659.XA patent/CN102851100B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| CN101333467A (en) * | 2007-06-28 | 2008-12-31 | 詹姆士·肯尼思·桑德斯 | Nano-sized metal and metal oxide particles for more complete fuel combustion |
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| CN102851100A (en) | 2013-01-02 |
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Address after: Sheng Tong Industrial Park No. 109 Venus 410200 Hunan province Changsha road in Wangcheng County Applicant after: Suntown Technology Group Corporation Address before: Sheng Tong Industrial Park No. 109 Venus 410200 Hunan province Changsha road in Wangcheng County Applicant before: Hunan Shengtong Technology Group Co., Ltd. |
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Address after: Taoyuan County in Hunan province Changde city 415700 disk town Chuangyuan Industrial Park Patentee after: Suntown Technology Group Corporation Address before: Sheng Tong Industrial Park No. 109 Venus 410200 Hunan province Changsha road in Wangcheng County Patentee before: Suntown Technology Group Corporation |
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