CN102337170A - Boiler clinker removal agent - Google Patents
Boiler clinker removal agent Download PDFInfo
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- CN102337170A CN102337170A CN2011102161339A CN201110216133A CN102337170A CN 102337170 A CN102337170 A CN 102337170A CN 2011102161339 A CN2011102161339 A CN 2011102161339A CN 201110216133 A CN201110216133 A CN 201110216133A CN 102337170 A CN102337170 A CN 102337170A
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- combustion
- removal agent
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Abstract
The invention provides a clinker removal agent which is used for reducing and clearing coke blocks and deposited dust in a coal-fired boiler and an industrial boiler. The clinker removal agent comprises the following components in percentage by weight: 30%-50% of aluminium nitrate, 30%-40% of borax, 15%-20% of copper nitrate and 5%-10% of ammonium nitrate. According to the invention, copper ion in the clinker removal agent is a combustion-supporting catalyst and is capable of reducing the fire point of the deposited dust so as to promote the combustion of coal powder; the borax can crisp the coke blocks so as to promote the combustion of carbon in the coke blocks and simultaneously realize the drop of the coke blocks; and the nitrate is an oxidant, can release oxygen for support combustion at high temperature, and can also generate 'microexplosion' effect, thereby clearing the coke and deposited dust. The additive has cheap and available raw material and simple preparation process, is convenient for use, dose not result in any corrosion of the boiler and dose not produce secondary pollution.
Description
Technical field
The present invention relates to technical field of chemistry, relate in particular to a kind of minimizing, remove the coke button in coal firing boiler, the Industrial Boiler, the decoking agent of dust stratification.
Background technology
Coal firing boiler is because hot strength is big, temperature of combustion is high; Unreasonable or operate not in place or ature of coal and change etc. under the influence of various complicated factors in boiler design; Serious coking of very easy formation and dust stratification; Often therefore need blowing out decoking deashing, bring great financial loss to manufacturing enterprise.In the fired coal combustion process, owing to fouling of heating surface, coking, the boiler heat exchange efficiency descends, and funnel temperature raises, and energy consumption increases.And heating surface is prone to because coking seriously produces sulphate corrosion, shortens boiler work-ing life etc.
At present, for deashing, the coking of Industrial Boiler, large-sized station boiler, adopt in the operational process artificial decoking usually and blow the mode that ash combines, prior art can not be serious to coking, particularly especially big coke button accomplished decoking.In boiler, add particular chemical medicament (decoking agent), its with ash content in material react, utilize physics, chemical action to remove the fouling of heating surface coking, particularly remove big burnt and the big burnt formation of prevention, assurance boiler safety, economical operation.
Mostly decoking agent is the solid state powder shape, and staple is villaumite, MOX, chromic salts, rare earth oxide.Present many decoking agent product effective constituent proportionings are unreasonable, reduced the fusing point of coal ash, make cinder softening, the decoking DeGrain; Villaumite can cause the be heated high temperature corrosion of pipeline of burner hearth under hot conditions, shorten boiler work-ing life; The use of rare earth oxide can aggravate the additive cost and raw material sources lack; The chromium-base slag-removing ash-cleaning agent is a kind of more common dust-cleaning agent, contains the medicament of a certain amount of chromated oxide and other related components, and chromated oxide belongs to high temperature infusibility material, allocate medicament into after, be favourable to improving coal ash fusion temperature.But the greatest problem that this medicament exists is that chromic salts has strong oxidation, people's skin and mucous membrane is all had stronger toxicity, and can cause the heavy metal contamination of slag water.Healthy and the point of view of environment protection from the operations staff, this have more supervirulent medicament to need prudent the use.
Summary of the invention
Technical problem to be solved by this invention provide a kind of can effectively remove and prevent big burnt, the coking of burner hearth knot be prone to remove through blowing ash, to the decoking agent of human non-toxic spinoff.
In order to address the above problem, technical scheme provided by the present invention is:
A kind of boiler decoking agent, the component of said decoking agent and weight percent are: aluminum nitrate 30%～50%,
Borax 30%～40%, cupric nitrate 15%～20%, an ammonium nitrate 5%～10%.
Preferably, the component of described decoking agent and percentage composition are: aluminum nitrate 38%～42%, and borax 34%～
37%, cupric nitrate 16%～17%, an ammonium nitrate 6%～7%.
Preferably, described decoking agent granularity is 100 orders.
Beneficial effect of the present invention is:
1. the promotion coal dust firing reduces coking.Cupric nitrate is that to decomposite bivalent cupric ion be combustion supporting catalyst at 1000K in the decoking agent, and bivalent cupric ion reacts under reducing atmosphere and generates univalent copper ion under the hot conditions, promptly
Univalent copper ion can react with coal ash, reduces the point of ignition of carbon distribution, promotes the burning of coal dust; Nitrate salt is oxygenant in the decoking agent, can resolve into nitrite and oxygen during high temperature, can directly improve the carbon burning in the coke button, and the two rational proportion can guarantee at coal dust firing more abundant, thereby makes coal ash be difficult for coking; In addition, also can reduce coking through the content of controlling borax, borax is an alkaline matter; Need the consumption of its content of control and decoking agent, when the content of borax surpasses 40%, possibly cause reducing the fusing point of coal ash because of improper use; It is softening that coal is occurred, thereby accelerate coking.
2. effectively remove big lump coke.Slight blast effectiveness can take place in an ammonium nitrate under hot conditions, can directly remove big Jiao, reach ash-removal effect.
3. the shortcakeization coke button promotes the decoking effect.Borax can form the active ion of submicron order under hot conditions, the shortcakeization coke button promotes the burning of carbon in the coke button, realizes coming off of coke button simultaneously, can be completely achieved ash-removal effect in conjunction with the explosion wave of an ammonium nitrate;
4. prolonged boiler work-ing life.Aluminum nitrate generates nano level aluminum oxide in hot conditions reaction of following moment, and life-time service boiler decoking agent of the present invention, heating surface form fine and close aluminum oxide film, and protection heated surface corrosion, sweep of gases increase the service life.
Embodiment
For clearer elaboration technical scheme of the present invention, combine concrete embodiment to specify at this.Certainly; Cited embodiment is preferred part embodiment, is intended to explain technology contents, but not the limit technical scheme; Therefore, those skilled in the art still belong to protection scope of the present invention according to the technical scheme that listed examples and disclosed technology contents obviously obtain.
Embodiment 1
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 50, borax 30, cupric nitrate 15, an ammonium nitrate 5.It is 100 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 2
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 47, borax 31, cupric nitrate 16, an ammonium nitrate 6.It is 110 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 3
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 45, borax 32, cupric nitrate 16, an ammonium nitrate 7.It is 120 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 4
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 44, borax 33, cupric nitrate 15, an ammonium nitrate 8.It is 130 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 5
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 42, borax 34, cupric nitrate 15, an ammonium nitrate 9.It is 140 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 6
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 40, borax 35, cupric nitrate 16, an ammonium nitrate 9.It is 150 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 7
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 38, borax 36, cupric nitrate 17, an ammonium nitrate 9.It is 160 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 8
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 36, borax 37, cupric nitrate 19, an ammonium nitrate 8.It is 170 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 9
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 34, borax 38, cupric nitrate 20, an ammonium nitrate 8.It is 180 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 10
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 32, borax 39, cupric nitrate 20, an ammonium nitrate 9.It is 190 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Embodiment 11
Each component and weight percent thereof are in the present embodiment: aluminum nitrate 30, borax 40, cupric nitrate 20, an ammonium nitrate 10.It is 200 orders that above-mentioned raw materials fully is ground to granularity respectively, promptly obtains the decoking agent product.
Claims (3)
1. a boiler decoking agent is characterized in that, the component of said decoking agent and weight percent are: aluminum nitrate 30%～50%, borax 30%～40%, cupric nitrate 15%～20%, an ammonium nitrate 5%～10%.
2. boiler decoking agent according to claim 1 is characterized in that, the component of described decoking agent and percentage composition are: aluminum nitrate 38%～42%, borax 34%～37%, cupric nitrate 16%～17%, an ammonium nitrate 6%～7%.
3. boiler decoking agent according to claim 1 is characterized in that, described decoking agent granularity is 100 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216133.9A CN102337170B (en) | 2011-07-30 | 2011-07-30 | A kind of boiler decoking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110216133.9A CN102337170B (en) | 2011-07-30 | 2011-07-30 | A kind of boiler decoking agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102337170A true CN102337170A (en) | 2012-02-01 |
| CN102337170B CN102337170B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110216133.9A Expired - Fee Related CN102337170B (en) | 2011-07-30 | 2011-07-30 | A kind of boiler decoking agent |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660350A (en) * | 2012-04-25 | 2012-09-12 | 邢岗 | Liquid state antiscorching agent for boiler |
| CN102766498A (en) * | 2012-08-13 | 2012-11-07 | 卢新宇 | Chemical catalyzing decoking agent |
| CN102786998A (en) * | 2012-07-24 | 2012-11-21 | 周丽琴 | Boiler coke preventing and eliminating agent |
| CN103387864A (en) * | 2012-05-08 | 2013-11-13 | 湖南晟通科技集团有限公司 | Combustion-supporting liquid-state decoking agent |
| CN103387863A (en) * | 2012-05-08 | 2013-11-13 | 湖南晟通科技集团有限公司 | Liquid-state decoking agent |
| CN103525501A (en) * | 2012-07-06 | 2014-01-22 | 聂冰晶 | Boiler decoking agent |
| CN105670716A (en) * | 2016-04-06 | 2016-06-15 | 孔建萍 | Oxygenation decoking agent |
| CN108795534A (en) * | 2018-07-06 | 2018-11-13 | 佛山市陵谐环保科技有限公司 | A kind of boiler decoking agent |
| CN109082318A (en) * | 2018-07-09 | 2018-12-25 | 安徽冠建新能源科技有限公司 | A kind of resistive connection slag biology burning matter particle and its preparation process |
| CN109679704A (en) * | 2018-12-11 | 2019-04-26 | 汪保安 | A kind of boiler decoking agent |
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|---|---|---|---|---|
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| CN101338237A (en) * | 2008-08-08 | 2009-01-07 | 西安交通大学 | Preparation of ash-cleaning and coke-removing agent for city domestic refuse incinerator |
| CN101649240A (en) * | 2009-06-12 | 2010-02-17 | 袁锁营 | Multifunctional coal-fired energy-saving additive |
| CN101955818A (en) * | 2010-10-15 | 2011-01-26 | 鞠立梅 | Coke-removing and soot-cleaning combustion improver for boiler |
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2011
- 2011-07-30 CN CN201110216133.9A patent/CN102337170B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| CN101338237A (en) * | 2008-08-08 | 2009-01-07 | 西安交通大学 | Preparation of ash-cleaning and coke-removing agent for city domestic refuse incinerator |
| CN101649240A (en) * | 2009-06-12 | 2010-02-17 | 袁锁营 | Multifunctional coal-fired energy-saving additive |
| CN101955818A (en) * | 2010-10-15 | 2011-01-26 | 鞠立梅 | Coke-removing and soot-cleaning combustion improver for boiler |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102660350A (en) * | 2012-04-25 | 2012-09-12 | 邢岗 | Liquid state antiscorching agent for boiler |
| CN103387864A (en) * | 2012-05-08 | 2013-11-13 | 湖南晟通科技集团有限公司 | Combustion-supporting liquid-state decoking agent |
| CN103387863A (en) * | 2012-05-08 | 2013-11-13 | 湖南晟通科技集团有限公司 | Liquid-state decoking agent |
| CN103525501A (en) * | 2012-07-06 | 2014-01-22 | 聂冰晶 | Boiler decoking agent |
| CN102786998A (en) * | 2012-07-24 | 2012-11-21 | 周丽琴 | Boiler coke preventing and eliminating agent |
| CN102786998B (en) * | 2012-07-24 | 2014-04-02 | 周丽琴 | Boiler coke preventing and eliminating agent |
| CN102766498A (en) * | 2012-08-13 | 2012-11-07 | 卢新宇 | Chemical catalyzing decoking agent |
| CN105670716A (en) * | 2016-04-06 | 2016-06-15 | 孔建萍 | Oxygenation decoking agent |
| CN108795534A (en) * | 2018-07-06 | 2018-11-13 | 佛山市陵谐环保科技有限公司 | A kind of boiler decoking agent |
| CN109082318A (en) * | 2018-07-09 | 2018-12-25 | 安徽冠建新能源科技有限公司 | A kind of resistive connection slag biology burning matter particle and its preparation process |
| CN109679704A (en) * | 2018-12-11 | 2019-04-26 | 汪保安 | A kind of boiler decoking agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102337170B (en) | 2016-01-20 |
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| CB02 | Change of applicant information |
Address after: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha District of Wangcheng City Applicant after: Suntown Technology Group Corporation Address before: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha District of Wangcheng City Applicant before: Hunan Shengtong Technology Group Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: HUNAN SHENGTONG TECHNOLOGY GROUP CO., LTD. TO: SNTO TECHNOLOGY GROUP CO., LTD. |
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Granted publication date: 20160120 Termination date: 20180730 |