CN109609242A - The modulation material of quasi- eastern coal combustion product structure can be changed and in the method to generate electricity, large scale uses quasi- eastern coal in heating boiler - Google Patents
The modulation material of quasi- eastern coal combustion product structure can be changed and in the method to generate electricity, large scale uses quasi- eastern coal in heating boiler Download PDFInfo
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- CN109609242A CN109609242A CN201910039366.2A CN201910039366A CN109609242A CN 109609242 A CN109609242 A CN 109609242A CN 201910039366 A CN201910039366 A CN 201910039366A CN 109609242 A CN109609242 A CN 109609242A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
Abstract
The present invention provides a kind of modulation materials that can change quasi- eastern coal combustion product chemical structure, comprising: the organic matter of the inanimate matter of 90~97 mass parts and 3~10 mass parts；The inanimate matter is synthesis inanimate matter or natural inanimate matter；The organic matter is selected from one or more of crude oil, heavy oil, residual oil and kerogen of kerogen structure.For inanimate matter of the invention in 700 DEG C or more of thermal field, last decomposition captures the harmful element sodium and sulphur in fuel, forms alkali metal persulfates, has solid sodium captured sulfur result, reduction heating surface stains and high temperature corrosion；The gas that decomposites simultaneously makes low melting point eutectic porosity and looseness and tear-away.The present invention modulates the organic matter in material and generates pyrolysis hysteresis by the low-temperature eutectic object package formed after inanimate matter and/or quasi- eastern coal combustion, after eutectic is bonded to heating surface, being persistently heated on 500 DEG C of heating surface makes the hot blasting effect of organic matter that binder short texture be made to fall off.Thoroughly solve contamination problems.
Description
Technical field
The present invention relates to chemical technology field, more particularly, to the modulation material that can change quasi- eastern coal combustion product structure with
And the method that large scale uses quasi- eastern coal in power generation, heating boiler.
Background technique
Eastern Junggar coalfield arrives Changji Hui Autonomous Prefecture, Xinjiang northern border west from the Changji, Xinjiang Fukang City county Dong Jie, the Dong Daomulei mausoleum Lao Jun, north
Kalamely Mountain southern foot, south connect ancient capital Xi'an the northern fringe, and thing is about the wide about 60km in the north and south 220km, and coalfield area is about
13000km2, predict that 390,000,000,000 t of coal resources reserves, the 17.8% of Zhan Quanjiang reserves (2.19 trillion t) account for national coal reserves
The 7% of (5.56 trillion t).21,300,000,000 t of coal resources reserves, the most thick reachable 80m in single layer coal seam have been verified by June, 2009, it can
Mining coal seam average thickness 43m, the abundant local 1km in coal seam2Coal reserves is Chinese or even maximum in the world up to 50,000,000 t
Self-contained coalfield.2006, country and autonomous region started large-scale development eastern Junggar coalfield.The quasi- regional coal resources prognostic reserves in east account for
The one third of full boundary, planning exploitation scale are annual 5.82 hundred million tons, are that the battle position of superior resources conversion and boundary electricity east are sent, is western
Gas east is defeated, the most important Energy Base of boundary coal transmission.
The quasi- regional coal ignition point in east is low, burn-off rate is high, the good height of flameholding, pollutant emission are low etc., but as power
With coal, the coal quality have the shortcomings that it is fatal, be exactly in coal alkali metal element content it is high, it is especially in the majority with sodium element content, in coal
Na in ash2O reaches 2-10%, considerably beyond the level less than 1% of current domestic bituminous coal even lignite ash.
Since quasi- eastern coal is compared with other domestic all coals, differ greatly in mineralogical composition, so that in-service
Coal-burning boiler be completely unsuitable for using, main cause is that these in-service boilers are before quasi- eastern coal exploitation, according to other cigarettes
The characteristic of coal manufactures and designs.However it is more serious, after the quasi- eastern coal power generation of development and utilization, electric power research is designed and manufactured
Department does not cause enough attention, so continues to use former mentality of designing appointing for the new power plant construction using quasi- eastern coal, causes to put into operation i.e.
It can not normal safe operation.For example, serious mistake occurs for the design of the supercritical boiler set of certain manufacturing enterprise, huge warp is caused
Ji loss.Even if later boiler design increases furnace width, after also fundamentally can not avoiding flue gas cool-down, high contamination flies
Deposition of the ash in heat convection face is stain.
For more than many 2,000 ten thousand kilowatts of in-service unit boilers of Wulumuqi Area, year consumes about 30,000,000 tons of standard coal.
Quasi- east coal only mixes burning with free-burning coal to be used on existing bituminous coal fired boiler, and ratio cannot be excessively high, typically not greater than
30%, it is otherwise easy to appear the water-cooling wall coking of hearth combustor area, boiler furnace outlet smoke temperature is caused to increase, horizontal flue is heated
Face high temperature stains, and dust stratification is serious, crosses reheater tube wall overtemperature tube burst, even must not on-stream decoking when serious.Wei Huliang, red wild goose
There is different degrees of slagging and contamination in one or two factory of pond, Wu Shihua power plant for self-supply, Tian Ye power plant, Gansu Jiu Gang power plant etc..Its
Zhong Jiu steel power plant 435t/h boiler used quasi- eastern coal after 1-2 months, and the regions such as large-size screen monitors, convection heating surface have also appeared serious height
Temperature corrosion, is forced blowing out, leads to the heat supply that has a power failure and stop, and causes to seriously affect to people all living creatures's work, especially unexpected in winter to stop
After warm, it will cause heat supply pipeline and freeze to burst, the indoor life security that will jeopardize the common people without warm severe winter.
The quasi- regional rich coal resources in east, but can not achieve the exclusive use of the coal in existing boiler combustion system, such as
In the case that fruit is not higher than 50% according to mixed-fuel burning proportion, the quasi- eastern coal of 1 ton of the every burning in power plant at least needs 1 ton of other coal of outward transport,
Economic cost is higher.As an energy output region, fuel still by outward transport, does not meet the mode of local development, is pair
Exploitative huge waste.Therefore realize that large scale uses quasi- eastern coal and becomes a urgent problem to be solved.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that providing a kind of quasi- eastern coal combustion product chemistry knot of energy change
The modulation material of structure, modulation material provided by the invention can thoroughly solve it in the slagging to boiler heating surface, contamination problems.
The present invention provides a kind of modulation materials that can change quasi- eastern coal combustion product chemical structure, comprising: 90~97 matter
Measure the inanimate matter of part and the organic matter of 3~10 mass parts；The inanimate matter is synthesis inanimate matter or natural inanimate matter；It is described organic
Matter is selected from one or more of crude oil, heavy oil, residual oil and kerogen of kerogen structure.
Preferably, the synthesis inanimate matter includes:
60~90 parts by weight of alumina silicate；
5~40 parts by weight of alkaline earth aluminosilicate；
5~10 parts by weight of alkaline earth metal carbonate.
Preferably, the alkali metal aluminosilicate include one of Almasilate, calcium aluminosilicate and manosil AS calcium and magnesium or
It is several；The alkali carbonate includes one or more of calcium carbonate, magnesium carbonate and miemite.
Preferably, the natural inanimate matter includes clay minerals and aluminosilicate mineral；The clay minerals include
One or more of shale, kaolinite, illite, montmorillonite, vermiculite and sepiolite；
It is 80~100% that the clay minerals, which account for nature inanimate matter mass fraction,；The aluminosilicate mineral includes silicon
One or more of line stone and mullite, it is than 5~20% that the aluminosilicate mineral, which accounts for nature inanimate matter mass fraction,.
Preferably, in the heavy oil or residual oil sulfur content below 1%.
The present invention provides can change quasi- eastern coal combustion product chemical structure described in above-mentioned technical proposal any one
Modulate application of the material in coal-fired electric generation furnace, heating boiler；The heating boiler includes but is not limited to pulverized-coal fired boiler, circulation
Fluidized-bed combustion boiler and Industrial Boiler.
Method that large scale uses quasi- eastern coal that the present invention provides a kind of in coal fired power generation, heating boiler, comprising:
To can change described in above-mentioned technical proposal any one the modulation material of quasi- eastern coal combustion product chemical structure with
Quasi- east coal mixing, burning.
Preferably, it is 5% or more that the accounting of the modulation material, which enters furnace burning material gross mass percentage,；The modulator
Material is 2 or more with Si/Ca ratio in the mixed material of quasi- eastern coal.
It preferably, further include that easy slagging boiler heating surface is periodically purged with soot blower.
Preferably, it is mixed after the modulation material that can change quasi- eastern coal combustion product chemical structure is broken with quasi- eastern coal；
Or
The modulation material that energy changes quasi- eastern coal combustion product chemical structure is crushed after mixing with quasi- east coal.
Compared with prior art, the present invention provides a kind of modulators that can change quasi- eastern coal combustion product chemical structure
Material, comprising: the organic matter of the inanimate matter of 90~97 mass parts and 3~10 mass parts；The inanimate matter is for synthesis inanimate matter or certainly
Right inanimate matter；The organic matter is selected from one or more of crude oil, heavy oil, residual oil and kerogen of kerogen structure.This hair
For the inanimate matter of bright offer in 700 DEG C or more of thermal field, last decomposition captures the harmful element sulphur in fuel, forms sulfuric acid alkali gold
Belong to salt, there is certain captured sulfur result, reduces heating surface high temperature corrosion；The gas decomposited simultaneously, keeps low melting point eutectic more
Hole is loose.The present invention modulates the organic matter in material and is wrapped up by the low-temperature eutectic object formed after inanimate matter and/or quasi- eastern coal combustion
Pyrolysis hysteresis is generated, after eutectic is bonded to heating surface, being persistently heated on 500 DEG C or so of heating surface keeps organic matter hot
Blasting effect makes binder short texture fall off.The present invention thoroughly solves compared with the technology of addition high-melting-point inert material
Contamination problems.With with strong points, additive amount is small, and energy-saving effect is good, high combustion efficiency, and corroding to equipment and wearing has improvement
Effect and effect.
Detailed description of the invention
Fig. 1 is that photo in kind is stain in effective slagging；
Fig. 2 is to no effect or in kind collect is stain in the boiler tube slagging of effect difference.
Specific embodiment
The present invention provides a kind of modulation materials that can change quasi- eastern coal combustion product chemical structure and one kind in fire coal
The method that large scale uses quasi- eastern coal in power generation, heating boiler, those skilled in the art can use for reference present disclosure, be suitably modified
Realization of process parameters.In particular, it should be pointed out that all similar substitutions and modifications be for a person skilled in the art it is aobvious and
It is clear to, they shall fall within the protection scope of the present invention.Method and application of the invention is carried out by preferred embodiment
Description, related personnel can obviously not depart from the content of present invention, are being modified in spirit and scope to methods herein and application
Or appropriate changes and combinations, carry out implementation and application the technology of the present invention.
The present invention provides a kind of modulation materials that can change quasi- eastern coal combustion product chemical structure, comprising: 90~97 matter
Measure the inanimate matter of part and the organic matter of 3~10 mass parts；The inanimate matter is synthesis inanimate matter or natural inanimate matter；It is described organic
Matter is selected from one or more of crude oil, heavy oil, residual oil and kerogen of kerogen structure.
The modulation material provided by the invention that quasi- eastern coal combustion product chemical structure can be changed, including 90~97 mass parts
Inanimate matter；Preferably include the inanimate matter of 91~97 mass parts；It more preferably include the inanimate matter of 92~97 mass parts.
Inanimate matter of the present invention is synthesis inanimate matter or natural inanimate matter.
According to the present invention, the synthesis inanimate matter includes:
60~90 parts by weight of alumina silicate；
5~40 parts by weight of alkaline earth aluminosilicate；
5~10 parts by weight of alkaline earth metal carbonate.
Specifically, synthesis inanimate matter provided by the invention includes the alumina silicate of 60~90 parts by weight；Preferably include 65~
The alumina silicate of 85 parts by weight；It more preferably include the alumina silicate of 70~80 parts by weight.
The present invention for the alumina silicate source and purity without limit, it is well known to those skilled in the art it is commercially available i.e.
It can.Such as Al2O9Si3。
Synthesis inanimate matter provided by the invention includes the alkaline earth aluminosilicate of 5~40 parts by weight；Preferably include 10~
The alkaline earth aluminosilicate of 35 parts by weight.Alkaline-earth metal of the present invention is preferably calcium or magnesium.
According to the present invention, the alkali metal aluminosilicate is preferably included in Almasilate, calcium aluminosilicate and manosil AS calcium and magnesium
One or more；Including but not limited to Ca2Al2(SiO3)5。
Synthesis inanimate matter provided by the invention preferably includes the alkaline earth metal carbonate of 5~10 parts by weight.It is of the present invention
Alkaline-earth metal is preferably calcium or magnesium.
According to the present invention, the alkali carbonate includes one or more of calcium carbonate, magnesium carbonate and miemite.
The present invention for the alumina silicate source and purity without limit, it is well known to those skilled in the art commercially available.
The alumina silicate, alkaline earth aluminosilicate, alkaline-earth metal carbon using above-mentioned extra fine quality part of the invention
Hydrochlorate coordinated, while can be only achieved high quasi- eastern coal additional amount of the invention, the slagging of boiler heating surface is few, it is small to stain.This
For the above-mentioned alkaline earth metal carbonate of invention in the thermal field of remaining 700 DEG C of cooperation or more, last decomposition captures the nocuousness in fuel
Elementary sulfur forms alkali metal persulfates, has certain captured sulfur result, reduces heating surface high temperature corrosion；The gas decomposited simultaneously
Body makes low melting point eutectic porosity and looseness.
Nature inanimate matter of the present invention includes clay minerals and aluminosilicate mineral；The clay minerals preferably wrap
Include one or more of kaolinite, illite, montmorillonite, vermiculite and sepiolite；The aluminosilicate mineral includes sillimanite
One or more of with mullite.The present invention is for the source of the alumina silicate and purity without restriction, art technology
It is commercially available known to personnel.It is preferably 80~100% that the clay minerals, which account for nature inanimate matter mass fraction,；The sial
It is than 0~20% that hydrochlorate mineral, which account for nature inanimate matter mass fraction,.
The modulation material provided by the invention that quasi- eastern coal combustion product chemical structure can be changed, including 3~10 mass parts
Organic matter；Preferably include the organic matter of 3~9 mass parts；It more preferably include the organic matter of 3~8 mass parts.
Organic matter of the present invention is selected from the organic matters such as the kerogen of crude oil, heavy oil, residual oil and kerogen structure.
In the present invention, in the heavy oil or residual oil sulfur content preferably below 1%.
The present invention limits in the mixed material of the modulation material and quasi- eastern coal Si/Ca ratio as 2 or more.It is above-mentioned by limiting
Final slagging is few, it is small to stain than making by Si/Ca.
The present invention provides a kind of preparation method of modulation material that can change quasi- eastern coal combustion product chemical structure, packets
It includes:
The inanimate matter of 90~97 mass parts and the organic matter of 3~10 mass parts are mixed.
The present invention is for above-mentioned specific mixed method without limiting.Above-mentioned concrete component and proportion, which have had, clearly retouches
It states, details are not described herein.
The present invention provides can change quasi- eastern coal combustion product chemical structure described in above-mentioned technical proposal any one
Modulate application of the material in coal fired power generation, heating boiler.
It is high that modulation material of the present invention is especially adapted for use in large scale safety in coal fired power generation or coal heating boiler
The degree of metamorphism that effect uses Xinjiang Uygur Autonomous Regions In The Eastern Junggar Basin coalfield (abbreviation eastern Junggar coalfield) production is middle low order
The categories of coal (referred to as quasi- eastern coal) of sodium element rich content in coal and coal.
Heating boiler of the present invention is suitable in all kinds such as pulverized-coal fired boiler, circulating fluidized bed boiler and Industrial Boilers
Coal-burning boiler, it is applied widely.
Do not occur after product of the present invention use heating surface of coal-fired boiler slagging, contamination, corrosion and influence safe operation and pot
Furnace thermal efficiency.
Method that large scale uses quasi- eastern coal that the present invention provides a kind of in coal fired power generation, heating boiler, comprising:
To can change described in above-mentioned technical proposal any one the modulation material of quasi- eastern coal combustion product chemical structure with
Quasi- east coal mixing, burning.
Hybrid mode of the present invention is well known to those skilled in the art without limiting.
According to the present invention, it is 5% or more that the accounting of the modulation material, which enters furnace burning material gross mass percentage,；Preferably
It " is 5%~25%, minimum ratio can reach 5% ".
Si/Ca ratio is 2 or more in the mixed material of the modulation material and quasi- eastern coal.The present invention limits the modulation
Si/Ca ratio is 2 or more in the mixed material of material and quasi- eastern coal.By limiting above-mentioned Si/Ca, than making, final slagging is few, stains
It is small.
It needs periodically to purge easy slagging boiler heating surface with soot blower after addition present invention modulation material.
The application method of modulation material of the present invention is preferred are as follows: can change quasi- eastern coal combustion product chemical structure for described
Modulation material it is broken after mixed with quasi- east coal；Or
The modulation material that energy changes quasi- eastern coal combustion product chemical structure is crushed after mixing with quasi- east coal；
Present invention preferably employs sodium element escapement ratios to characterize solid sodium effect, and the sodium element escapement ratio is sodium member in material
The mass fraction of sodium element in the quality accounting raw material of ontology is fled from the volatilization of element at high temperature, and the escapement ratio the low then to consolidate sodium effect
Fruit is more excellent.
Sodium high temperature escapement ratio measuring method in the coal specifically:
1, sample ashing reacts
The ashing of sample is carried out referring to GB/T 212: in the cupel of preparatory calcination to constant mass, being weighed granularity and is less than
The coal sample of 0.2mm or mixing sample (1 ± 0.1) g for being added to modulation material, rise in Muffle furnace and are ashed in 400 DEG C of constant temperature calcinations
2h obtains 400 DEG C of ashing samples until ashing is completely.
2, high-temperature fusion is reacted
The pyramid method referring to as defined in GB/T 219, above-mentioned 400 DEG C of ashing sample preparations are bored at ash, are placed on ash fusion point high temperature furnace
According to national standard temperature programming and control atmosphere, after rising to 1100 DEG C of target temperature stop heating, after being cooled to room temperature, take out
Ash cone is used as high-temperature fusion sample.
3, sodium element assay
Disappeared using 3000 microwave dissolver of Multiwave that Anton Paar company produces to ash sample and raw coal sample
Solution, ash sample weigh 20mg or so, and coal sample weighs 400mg or so, ash sample Hydrolytic acid: 5mL HNO3 and 1mLHF, coal sample resolution are used
Acid: 6mL HNO3,1mLHF and 2mL H2O2.Then 8000 ICP-OES of Optima produced using PerkinElmer company
Inductively coupled plasma atomic emission spectrometer measures 400 DEG C of ashing samples respectively and its high-temperature fusion sample sodium element contains
Amount.
4, the calculating of sodium escapement ratio
The escapement ratio of its sodium in high-temperature fusion reaction is calculated on the basis of converting to 400 DEG C of ashes.
Ψ=100 (alpha-beta)/α
In formula
The escapement ratio of Ψ --- sodium, %；
α --- the content of sodium, g in 400 DEG C of ashing samples；
β --- the content of sodium, g in corresponding 1100 DEG C of high-temperature fusion samples.
The present invention provides a kind of modulation materials that can change quasi- eastern coal combustion product chemical structure, comprising: 90~97 matter
Measure the inanimate matter of part and the organic matter of 3~10 mass parts；The inanimate matter is synthesis inanimate matter or natural inanimate matter；It is described organic
Matter is selected from the organic matter of kerogen structure, the organic matter of sapropel structure, heavy oil kind organic matter or residual oil class organic matter.The present invention mentions
For the inanimate matter of confession in 700 DEG C or more of thermal field, last decomposition captures the harmful element sulphur in fuel, forms alkali metal
Salt has certain captured sulfur result, reduces heating surface high temperature corrosion；The gas decomposited simultaneously, keeps low melting point eutectic porous
It is loose.The present invention modulates the organic matter in material and is produced by the low-temperature eutectic object package formed after inanimate matter and/or quasi- eastern coal combustion
Heat solution hysteresis, after eutectic is bonded to heating surface, being persistently heated on 500 DEG C or so of heating surface makes organic matter thermal explosion
Broken effect makes binder short texture fall off.The present invention is thoroughly solved and is stained with compared with the technology of addition high-melting-point inert material
Dirty problem.With with strong points, additive amount is small, and energy-saving effect is good, high combustion efficiency, corrodes and wear the work for having improvement to equipment
With and effect.
In order to further illustrate the present invention, with reference to embodiments to a kind of quasi- eastern coal combustion of energy change provided by the invention
A kind of method that the modulation material of product chemistry structure and large scale in coal fired power generation, heating boiler use quasi- eastern coal carries out
Detailed description.
Embodiment 1
Certain quasi- eastern coal 94%, modulator adding proportion is 6%, and inorganic matter 94% in modulator, in the inorganic matter: silicon
Sour aluminium: 90%；Aluminum magnesium silicate: 5%；Magnesium carbonate 5%；Organic matter 6% is heavy oil.
Mixture Si/Ca ratio is 2.00., sodium element escapement ratio 5.32%.
Corresponding slagging contamination product structure is loose, easy to fall off, is not easy slagging, is not easy to stain.
Embodiment 2
Certain quasi- eastern coal 90%, modulator adding proportion is 10%, and in modulator: inorganic matter 93%: alumina silicate: 80%；
Calcium aluminosilicate: 15%；Calcium carbonate 5%；Organic matter 7%: residual oil.
Mixture Si/Ca ratio is 2.22, sodium element escapement ratio 2.43%.
Corresponding slagging contamination product structure is loose, easy to fall off, is not easy slagging, is not easy to stain.
Embodiment 3
Certain quasi- eastern coal 85%, modulator adding proportion is 15%, and in modulator: inorganic matter 95%: alumina silicate: 75%；
Calcium aluminosilicate: 20%；Calcium carbonate 5%；Organic matter 5%: crude oil.
Mixture Si/Ca ratio is 2.68, sodium element escapement ratio 0.00%.
Corresponding slagging contamination product structure is loose, easy to fall off, is not easy slagging, is not easy to stain.
Embodiment 4
Certain quasi- eastern coal 80%, modulator adding proportion is 20%, and in modulator: inorganic matter 96%: alumina silicate: 80%；
Calcium aluminosilicate: 10%；Calcium carbonate 10%；Organic matter 4%: kerogen extract.
Mixture Si/Ca ratio is 2.85, sodium element escapement ratio 0.00%.
Embodiment 5
Certain quasi- eastern coal 90%, modulator adding proportion is 10%, and in modulator: inorganic matter 94%: kaolinite 80%；Not
Carry out stone 20%；Organic matter 6%: heavy oil.
Mixture Si/Ca ratio is 2.53, sodium element escapement ratio 0.00%.
Corresponding slagging contamination product structure is loose, easy to fall off, is not easy slagging, is not easy to stain.
Embodiment 9
Certain quasi- eastern coal 90%, modulator adding proportion is 10%, and in modulator: inorganic matter 93%: montmorillonite 80%；Silicon
Line stone 20%；Organic matter 7%: residual oil.
Mixture Si/Ca ratio is 2.24, sodium element escapement ratio 2.00%.
Corresponding slagging contamination product structure is loose, easy to fall off, is not easy slagging, is not easy to stain.
Corresponding slagging contamination product structure is loose in all embodiments, if Fig. 1, Fig. 1 are that effective slagging is stain in fact
Object photo.
Comparative example 1
When modulator 0% adds, certain quasi- eastern coal Si/Ca ratio is 0.20, and sodium element sodium element escapement ratio is in quasi- east coal
41.54%.
It is fine and close that product structure is stain in corresponding slagging, as shown in Fig. 2, Fig. 2 is to no effect or the boiler tube slagging of effect difference is stained with
Dirty collection in kind.
Comparative example 2
Certain quasi- eastern coal 85%, modulator adding proportion is 15%, and in modulator: inorganic matter 96%: quartz sand 40%；Water chestnut
Magnesium mine 60%；Organic matter 4%: heavy oil.
Although mixture Si/Ca ratio is the sodium element escapement ratio 38% greater than 2.
Due to the SiO in quartz sand2Reactionless activity so sodium element can not be captured, and causes seriously heating surface
Abrasion.
Comparative example 3
Certain quasi- eastern coal 90%, modulator adding proportion is 15%, and in modulator: inorganic matter 97%: alumina silicate: 60%；
Calcium aluminosilicate: 40%；Organic matter 3%: heavy oil.
Mixture Si/Ca ratio is 2.00, sodium element escapement ratio 4.90%.
But SOx discharge increases.
Comparative example 4
Certain quasi- eastern coal 85%, modulator adding proportion is 15%, and in modulator: inorganic matter 100%: alumina silicate: 60%；
Calcium aluminosilicate: 35%；Calcium carbonate 5%.
Mixture Si/Ca ratio is 2.17, sodium element escapement ratio 4.00%.
But slagging, similar to Fig. 2, compact structure is easy, stains in heating surface not easily to fall off.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of modulation material that can change quasi- eastern coal combustion product chemical structure, comprising: the inanimate matter of 90~97 mass parts and 3
The organic matter of~10 mass parts；The inanimate matter is synthesis inanimate matter or natural inanimate matter；The organic matter is selected from crude oil, again
One or more of oil, residual oil and kerogen of kerogen structure.
2. modulation material according to claim 1, which is characterized in that the synthesis inanimate matter includes:
60~90 parts by weight of alumina silicate；
5~40 parts by weight of alkaline earth aluminosilicate；
5~10 parts by weight of alkaline earth metal carbonate.
3. modulation material according to claim 2, which is characterized in that the alkali metal aluminosilicate include Almasilate,
One or more of calcium aluminosilicate and manosil AS calcium and magnesium；The alkali carbonate includes calcium carbonate, magnesium carbonate and calcium carbonate
One or more of magnesium.
4. modulation material according to claim 1, which is characterized in that the nature inanimate matter includes clay minerals and silicon
Aluminium mineral material；The clay minerals include one of shale, kaolinite, illite, montmorillonite, vermiculite and sepiolite or
Several, it is 80~95% that the clay minerals, which account for nature inanimate matter mass fraction,；The aluminosilicate mineral includes sillimanite
One or more of with mullite, it is than 5~20% that the aluminosilicate mineral, which accounts for nature inanimate matter mass fraction,.
5. modulation material according to claim 1, which is characterized in that sulfur content is below 1% in the heavy oil or residual oil.
6. the modulation material of quasi- eastern coal combustion product chemical structure can be changed described in Claims 1 to 5 any one in fire coal
Application in electricity generation boiler, heating boiler；The power generation, heating boiler include but is not limited to pulverized-coal fired boiler, recirculating fluidized bed pot
Furnace and Industrial Boiler.
7. a kind of method that large scale in coal fired power generation, heating boiler uses quasi- eastern coal characterized by comprising
It will can change modulation material and the quasi- east of quasi- eastern coal combustion product chemical structure described in Claims 1 to 5 any one
Coal mixing, burning.
8. the method according to the description of claim 7 is characterized in that the accounting of the modulation material enters furnace burning material gross mass
Percentage is 5% or more；Si/Ca ratio is 2 or more in the mixed material of the modulation material and quasi- eastern coal.
9. the method according to the description of claim 7 is characterized in that further including periodically purging easy slagging boiler with soot blower to be heated
Face.
10. the method according to the description of claim 7 is characterized in that the energy changes quasi- eastern coal combustion product chemical structure
It is mixed after modulation material is broken with quasi- eastern coal；Or
The modulation material that energy changes quasi- eastern coal combustion product chemical structure is crushed after mixing with quasi- east coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039366.2A CN109609242B (en) | 2019-01-16 | 2019-01-16 | Material preparation capable of changing structure of combustion product of eastern Junggar coal and method for combusting eastern Junggar coal in large proportion in power generation and heat supply boilers |
Applications Claiming Priority (1)
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| CN110747033A (en) * | 2019-10-22 | 2020-02-04 | 宋文奇 | Method for solving contamination during combustion of high-sodium coal by forming composite sodium compound |
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| CN102329676A (en) * | 2011-07-30 | 2012-01-25 | 湖南晟通科技集团有限公司 | Liquid coke inhibitor |
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