CN102660350A - Liquid state antiscorching agent for boiler - Google Patents
Liquid state antiscorching agent for boiler Download PDFInfo
- Publication number
- CN102660350A CN102660350A CN2012101242121A CN201210124212A CN102660350A CN 102660350 A CN102660350 A CN 102660350A CN 2012101242121 A CN2012101242121 A CN 2012101242121A CN 201210124212 A CN201210124212 A CN 201210124212A CN 102660350 A CN102660350 A CN 102660350A
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- boiler
- nitrate
- percent
- antiscorch
- ing
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Abstract
The invention relates to a liquid state antiscorching agent for a boiler. The liquid state antiscorching agent comprises the following raw materials in percentage by weight: 5.5-18.3 percent of copper nitrate, 3.1-21 percent of magnesium nitrate, 8.5-20.9 percent of potassium nitrate, 1.4-8.0 percent of boracic acid, 1.4-20.0 percent of aluminum nitrate, 0.3-19.0 percent of sodium nitrate and 64.8-79.8 percent of deionized water. According to the liquid state antiscorching agent for the boiler, which is disclosed by the invention, non-volatile residue on each heated surface of the boiler can be quickly removed and the tube bursting due to tube wall coking is prevented.
Description
Technical field
The present invention relates to a kind of liquid boiler antiscorch(ing).
Background technology
At present existing chemical coke removing agent mainly exists with " solid-state " form; Solid-state deslagging agent chemical formulation is inaccurate; Its composition can not carry out effecting reaction with boiler scaling and dust stratification, and its main method of use is that solid-state deslagging agent is carried out with boiler oil and mixes; And then send into burner hearth and burn; This use-pattern has determined the chemical smoke that produces behind its fired vapour can't be abound with burner hearth, has the dead angle, can't react with the slagging scorification and the dust stratification that are abound with burner hearth fully; In addition, the composition of solid-state deslagging agent mainly is made up of rhombspar, Wingdale, Potcrate and red stone, above-mentioned substance can not with the mullite (Al in the boiler scaling
2(Al
2.5Si
1.5) O
9.75), hereynite (Fe
+ 2Al
2O
4), cristobalite (SiO
2) carry out effective chemical reaction, therefore, this series products exists that the technological element of a product is low, slagging-off, press down shortcomings such as slag DeGrain, use cost height.
Boiler coke is the process of the physics and the chemical transformation of a complicacy, and boiler coke mainly is divided into: two big types of slagging scorification and dust stratifications.Slagging scorification mainly is meant and contains eutectic alkaline metal oxide and vitriol in the fuel ash, distillation at high temperature takes place or form the eutectic eutectic, and running into colder heating surface tube wall is grieshoch in condensation gets off to form; Dust stratification is meant that mainly the flying dust in the high-temperature flue gas environment is deposited on grieshoch outside heated surface bundle outside surface loose.Dust stratification can be divided into three parts according to its meltable degree.Molten ash mainly is metal chloride and sulfide (NaCl, Na at the end
2SO
4, MgCl
2, Al (SO
4)
3) wait them fusing point mostly at 700～800 ℃.In the staple of molten ash be FeS, Na
2SiO
3, K
2SO
4Deng, 900～1100 ℃ of fusing points.High molten ash is by pure-oxide (SiO
2, Al
2O
3, CaO, MgO, Fe
2O
3) wait composition, 1600～2800 ℃ of fusing points.Different according to institute's incendiary coal, staple is in the general boiler coke body: Al
2(Al
2.5Si
1.5) O
9.75(mullite), Fe
+ 2Al
2O
4(hereynite), SiO
2(cristobalite).
Summary of the invention
Technical problem to be solved by this invention provides a kind of be used to remove, the suppress slagging scorification of boiler combustion postadhesion on heating surface and the liquid boiler antiscorch(ing) of dust stratification.
The technical scheme that the present invention solves the problems of the technologies described above is following: a kind of liquid boiler antiscorch(ing); Comprise following raw materials by weight percent: cupric nitrate 5.5～18.3%, magnesium nitrate 3.1～21%, saltpetre 8.5～20.9%, boric acid 1.4～8.0%, aluminum nitrate 1.4～20.0%, SODIUMNITRATE 0.3～19.0%, deionized water 64.8～79.8%.
" prescription " of liquid boiler antiscorch(ing) of the present invention exists with " liquid state " form; Can in boiler operatiopn, spray into the furnace combustion zone territory through specific equipment; The a large amount of chemical smoke that produce behind the high-temperature evaporation like this can be abound with burner hearth and can carry out sufficient chemical reaction with boiler scaling and dust stratification, do not stay the dead angle.
Will soon gasify after liquid boiler antiscorch(ing) of the present invention sprays into high-temperature burner hearth, these gaseous state particles are littler than the particle of combustion substance, therefore free more easily being dispersed in the combustion gases; Metallic compound in its composition can reduce unburned carbon contained point of ignition; Nitrate compound can provide enough oxygen for reaction, so before forming settling, can be with all carbon cpd perfect combustion.
Metallic compound reduces the point of ignition of existing carbon, makes original settling perfect combustion, reaches the effect of scattered removing, and nitrate salt provides oxygen; With its whole burnings, reach the effect of scattered removing equally, magnesium compound and aluminum compound are in thermal-flame; Be attached on the coking body of high tackyness, during greater than 600 ℃, this dissociant that contains magnesium, aluminium composition can be separated hydroxyl and expand in temperature; At the inner expansion crack that forms of coking, thus the intensity of reduction coking, and be easy to removed by sootblower.
Do not contain the sulphur composition in the liquid boiler antiscorch(ing) that the present invention sends out; The pH value slant acidity mainly comes from acid-salt compound wherein; Its significant feature is to impel the boiler coke body to strengthen the property that stagnates; To improve ash fusion point, acidic oxide and basic oxide that the chemical element that contains in the liquid boiler antiscorch(ing) is prone to contained with the boiler coke body react.As: saltpetre can take place more than 400 ℃ to decompose and emit organism (like CH4) and sulphur in oxygen and itself and the coking body mixes after meeting generation spontaneous combustion, impel boiler oil fully to burn.Cupric nitrate can be decomposed into cupric oxide and oxygen more than 200 ℃; Its carbon, sulphur in the coking body heats, and friction or bump can cause burning and microexplosion phenomenon more than 700 ℃; The main effect of cupric nitrate is to impel the unburned carbon in the coking body further to burn; After the burning of unburned carbon in the coking body, that the coking body will become is loose, porous, be cellular, reaches the purpose that the effect at self gravitation comes off.Magnesium nitrate can provide intensive combustion-supporting effect in the oxygen mix that is converted into Natural manganese dioxide and saltpetre, cupric nitrate and SODIUMNITRATE decomposition back generation more than 400 ℃ fully; Boiler oil has only abundant burning just can suppress new coking generation, cooperates with cupric nitrate to produce good decoking effect.Aluminum nitrate can with the SiO in the coking body
2(cristobalite) at high temperature reacts and generates silicate, thereby with compact structure, the higher SiO of hardness in the coking body
2(cristobalite) is converted into relatively loose silicate, and nitric acid is received to be warmed to and promptly is decomposed into Sodium Nitrite and oxygen more than 380 ℃, has the combustion-supporting effect of intensive, and its with slagging scorification in phosphorus, sulphur friction after can generation microexplosion phenomenon; Boric acid can decompose the generation boron oxide more than 400 ℃; FES reacts in one-tenth branch under the unbound state and the boiler oil; Force ferrous ion to be oxidized to ferric ion, generate dystectic Z 250 rapidly, thereby destroy the higher SiO of hardness in the coking body
2(cristobalite) and Fe
+ 2Al
2O
4(hereynite) skeleton decomposes rapidly, comes off thereby make attached to the coking body on the heating surface.
The invention has the beneficial effects as follows:
1, can change the boiler characteristic of char residue, make the loose of coke button change, it is Powdered that cinder is, and avoids because of falling the improper stop frequency that big coke block causes;
2, significantly the slag system working strength is dragged in improvement, reduces the maintaining requirement;
3, can remove each heating surface cinder of boiler fast, prevent the booster phenomenon that causes because of the tube wall coking;
4, slow down SO
3And sulfuric acid corrosion, prolong service life of equipment, reduce production costs;
5, exempt the boiler manual work and beat Jiao, reduce employee work intensity, be convenient to adjust boiler operating parameter;
6, use behind the liquid boiler antiscorch(ing) of the present invention because of controlling boiler coke to a certain extent, therefore, the boiler of stand can be mixed burning low price, cheap low grade coal, saves production cost;
7, boiler also can be mixed and burn high calorie high-quality coal raising boiler load;
8, effectively promote boiler efficiency, strengthen heat exchange, practice thrift coal-fired;
9, reduce the boiler soot-blowing number of times, reduce funnel temperature and desuperheating water usage quantity, save energy consumption in a large number.
On the basis of technique scheme, the present invention can also do following improvement.
Further; Said liquid boiler antiscorch(ing); Preferably comprise following raw materials by weight percent: cupric nitrate 6.0～14.4%, magnesium nitrate 3.5～12%, saltpetre 8.6～14%, boric acid 2.0～5.5%, aluminum nitrate 2.2～13.6%, SODIUMNITRATE 0.5～11%, deionized water 68.7～77.2%.
The complete processing of the liquid boiler antiscorch(ing) of the present invention is:
1, at first raw material cupric nitrate, magnesium nitrate, saltpetre, boric acid, aluminum nitrate and SODIUMNITRATE are detected, and then above-mentioned raw materials is handled;
2, Jiang Shui handles, and removes the impurity that is ionic species, makes deionized water;
3, the deionized water in raw material of handling well in the step 1 and the step 2 is put into mixing tank and mix, heat again, vibrating makes it mix fully, precipitate, mix, the sedimentary time is 4 hours, obtains throw out;
4, again throw out is carried out slaking, get final product.
Embodiment
Below principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 15.3%, magnesium nitrate 3.1%, saltpetre 8.6%, boric acid 1.4%, aluminum nitrate 1.4%, SODIUMNITRATE 0.3%, deionized water 69.1%.
Embodiment 2
A kind of liquid boiler antiscorch(ing); It is characterized in that: comprise following raw materials by weight percent: a kind of liquid boiler antiscorch(ing) of nitric acid; Comprise following raw materials by weight percent: cupric nitrate 5.5%, magnesium nitrate 18%, saltpetre 8.6%, boric acid 1.4%, aluminum nitrate 1.4%, SODIUMNITRATE 0.3%, deionized water 64.8%.
Embodiment 3
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 5.5%, magnesium nitrate 3.1%, saltpetre 18.9%, boric acid 1.4%, aluminum nitrate 1.4%, SODIUMNITRATE 0.3%, deionized water 69.4%.
Embodiment 4
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 5.5%, magnesium nitrate 3.1%, saltpetre 8.5%, boric acid 8.0%, aluminum nitrate 1.4%, SODIUMNITRATE 0.3%, deionized water 73.2%.
Embodiment 5
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 5.5%, magnesium nitrate 3.1%, saltpetre 8.5%, boric acid 1.4%, aluminum nitrate 15.5%, SODIUMNITRATE 0.3%, deionized water 65.7%.
Embodiment 6
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 5.5%, magnesium nitrate 3.1%, saltpetre 8.5%, boric acid 1.4%, aluminum nitrate 1.4%, SODIUMNITRATE 12.6%, deionized water 67.5%.
Embodiment 7
A kind of liquid boiler antiscorch(ing) comprises following raw materials by weight percent: cupric nitrate 6.0%, magnesium nitrate 3.8%, saltpetre 8.6%, boric acid 2.0%, aluminum nitrate 2.0%, SODIUMNITRATE 1.6%, deionized water 76%.
Below specify liquid boiler antiscorch(ing) of the present invention through concrete embodiment.
A stove has carried out ten months experiment to liquid boiler antiscorch(ing) of the present invention in the XXXX power station year October in December, 2009 to 2010, has obtained good result of use, below is experimental data:
1,2,3, No. 4 boilers in XXXX power station are a resuperheat list of the subcritical parameter of BGWB-1025/18.44-M drum natural circulation waterpipe type coal-powder boiler, are the ∏ type and arrange.Firing system is joined 4 MPS-225 medium-speed pulverizers, and three one of operations are subsequent use.Design coal is that refreshing Fu Dong wins coal, but because electric coal is in short supply, so the actual coal that uses is more assorted, Actual combustion coal and design coal parameters differ far away, coal changes more frequent.In 1# stove actual motion; Flame kernel is higher, air preheater air leak rate of air curtain big (A side 15.3%B side 17.08%), fan outlet blast are higher, cause the serious coking of a stove top heating surface; Burnt body is attached on the heat exchanger tube; Cause rate of heat exchange to descend, thereby reduce the security and the economy of boiler operatiopn greatly.
One, experimentation
From October 20,2009 5 days to 2010 December in, be primarily aimed at the whole coking situation of burner hearth, each peephole sprays liquid antiscorch(ing) at 1# stove 17m place.Improvement along with the whole coking of burner hearth; Be directed to the serious situation of 1# stove two stage superheater inlet coking; Be primarily aimed at the two stage superheater coking problem and change eject position, each peephole sprays liquid antiscorch(ing) at 1# stove 37m place in decision, sprays the medicine phase herein to last till 1# stove on the 20th blowing out October in 2010.
Two, experimental data:
1, the forward and backward stove of experiment under identical mill operation scheme, blew the close flow in ash back 1 hour 30 minutes, each section cigarette temperature contrasts like following table:
Before a, the use: (table one)
B, use back: (table two)
2, the forward and backward stove economic target of experiment contrasts (table three) as follows:
Three, experiment conclusion:
1, after blowing out on October 20 in 2010; 1# stove water wall, furnace arch, furnace nose, suphtr, reheater, economizer coking situation are observed; Find that water wall, suphtr, reheater have not had obvious coking body; Especially large-size screen monitors, two are crossed pipe and are cleared clearly, and the decoking effect is obvious, and 1# stove metal pipe-wall is not caused any corrosion.
The slag situation is fallen in water seal according to 1# stove furnace bottom, and the 1# stove is behind this product of experiment, and slag is Powdered fully to be distinguished obviously with not testing preceding boiler slag, under the situation of coal frequent variations, guarantees normal, the safe operation of 1# stove slag crusher; Its ash-slag disposal system turnaround prolonged after the 1# stove used this product, and the ash disposal unit consumption reduces.
2, behind this product of 1# stove experiment; Obvious decline is all arranged before each section cigarette temperature is compared experiment under close operating mode, and (the cigarette temperature descends 34 ℃ before the reheater; Cigarette temperature descends 11.75 ℃ before the primary superheater, and cigarette temperature descends 1.25 ℃ behind the economizer) and the overtemperature punctuate of preceding 1# stove suphtr of experiment and the existence of reheater metal pipe-wall eliminate fully.Because of boiler coke causes the oepration at full load continuously of 1# stove, after experiment, then realize the continuous large load operation of 1# stove fully before the experiment.
3, behind this product of 1# stove experiment, check funnel temperature and before testing, descended 5.3 ℃; Burner hearth is described because of the experiment cleaning that becomes, heat exchanger effectiveness rises; 1# stove suction fan power consumption unit consumption is than the 0.04kwh/t that descended before using.The air preheater blocking problem had obtained effective improvement before the decline of suction fan unit consumption proved absolutely, for requiring summer the 1# stove to exert oneself at full capacity powerful guarantee was provided.
4, after this stage experiment of the present invention finished, the coal consumption of 1# stove was than the 2.59g/kwh that descended before using.Though the influence that net coal consumption rate is changed by coal and actual condition; But (use back coal calorific value than before using and reduce 2.38MJ/KG from the variation contrast of coal calorific value; Use the back ash and raise 4.11% than before using) and the net coal consumption rate fall judge, test this product and played suitable effect reducing 1# stove net coal consumption rate.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. liquid boiler antiscorch(ing); It is characterized in that: comprise following raw materials by weight percent: cupric nitrate 5.5～18.3%, magnesium nitrate 3.1～21%, saltpetre 8.5～20.9%, boric acid 1.4～8.0%, aluminum nitrate 1.4～20.0%, SODIUMNITRATE 0.3～19.0%, deionized water 64.8～79.8%.
2. liquid boiler antiscorch(ing) according to claim 1; It is characterized in that: comprise following raw materials by weight percent: cupric nitrate 6.0～14.4%, magnesium nitrate 3.5～12%, saltpetre 8.6～14%, boric acid 2.0～5.5%, aluminum nitrate 2.2～13.6%, SODIUMNITRATE 0.5～11%, deionized water 68.7～77.2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101242121A CN102660350A (en) | 2012-04-25 | 2012-04-25 | Liquid state antiscorching agent for boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101242121A CN102660350A (en) | 2012-04-25 | 2012-04-25 | Liquid state antiscorching agent for boiler |
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| Publication Number | Publication Date |
|---|---|
| CN102660350A true CN102660350A (en) | 2012-09-12 |
Family
ID=46769934
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|---|---|---|---|
| CN2012101242121A Pending CN102660350A (en) | 2012-04-25 | 2012-04-25 | Liquid state antiscorching agent for boiler |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897766A (en) * | 2014-03-21 | 2014-07-02 | 冯智勇 | Energy-saving and environment-friendly ash scavenger for coal-fired boiler |
| CN104327904A (en) * | 2014-10-30 | 2015-02-04 | 北京晟辉兴业科技有限公司 | Liquid boiler coking inhibitor |
| CN104774672A (en) * | 2014-04-08 | 2015-07-15 | 李珍锡 | A combustion improver for waste and fossil fuel |
| CN113201376A (en) * | 2021-03-26 | 2021-08-03 | 江苏精科嘉益工业技术有限公司 | Multifunctional combustion aid and application thereof |
| CN114907899A (en) * | 2022-06-10 | 2022-08-16 | 南方电网电力科技股份有限公司 | Composite decoking agent for household garbage incineration boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177628A (en) * | 1997-09-30 | 1998-04-01 | 覃戊文 | Energy-saving sweetening smoke-abatment agent |
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| 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 |
| CN102337170A (en) * | 2011-07-30 | 2012-02-01 | 湖南晟通科技集团有限公司 | Boiler clinker removal agent |
-
2012
- 2012-04-25 CN CN2012101242121A patent/CN102660350A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177628A (en) * | 1997-09-30 | 1998-04-01 | 覃戊文 | Energy-saving sweetening smoke-abatment agent |
| CN1487262A (en) * | 2003-06-27 | 2004-04-07 | 琦 戴 | Boiler coke eliminating agent |
| 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 |
| CN102337170A (en) * | 2011-07-30 | 2012-02-01 | 湖南晟通科技集团有限公司 | Boiler clinker removal agent |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103897766A (en) * | 2014-03-21 | 2014-07-02 | 冯智勇 | Energy-saving and environment-friendly ash scavenger for coal-fired boiler |
| CN103897766B (en) * | 2014-03-21 | 2016-06-08 | 冯智勇 | The soot cleaning of coal-fired boiler agent of a kind of energy-conserving and environment-protective |
| CN104774672A (en) * | 2014-04-08 | 2015-07-15 | 李珍锡 | A combustion improver for waste and fossil fuel |
| CN104774672B (en) * | 2014-04-08 | 2017-06-23 | 株式会社吉椰福 | For waste and the combustion adjuvant of fossil fuel |
| CN104327904A (en) * | 2014-10-30 | 2015-02-04 | 北京晟辉兴业科技有限公司 | Liquid boiler coking inhibitor |
| CN113201376A (en) * | 2021-03-26 | 2021-08-03 | 江苏精科嘉益工业技术有限公司 | Multifunctional combustion aid and application thereof |
| CN114907899A (en) * | 2022-06-10 | 2022-08-16 | 南方电网电力科技股份有限公司 | Composite decoking agent for household garbage incineration boiler |
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Application publication date: 20120912 |