CN108998144A - A kind of additive improving biomass molding fuel ash softening point - Google Patents
A kind of additive improving biomass molding fuel ash softening point Download PDFInfo
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- CN108998144A CN108998144A CN201810897674.4A CN201810897674A CN108998144A CN 108998144 A CN108998144 A CN 108998144A CN 201810897674 A CN201810897674 A CN 201810897674A CN 108998144 A CN108998144 A CN 108998144A
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- Prior art keywords
- parts
- additive
- softening point
- molding fuel
- biomass molding
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- 239000002028 Biomass Substances 0.000 title claims abstract description 61
- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 238000000465 moulding Methods 0.000 title claims abstract description 52
- 239000000654 additive Substances 0.000 title claims abstract description 46
- 230000000996 additive effect Effects 0.000 title claims abstract description 45
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 112
- 229910052742 iron Inorganic materials 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 26
- 238000002360 preparation method Methods 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 23
- 229910052651 microcline Inorganic materials 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 22
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- 239000011812 mixed powder Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 5
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 2
- 239000002956 ash Substances 0.000 abstract description 38
- 239000010882 bottom ash Substances 0.000 abstract description 9
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract description 8
- 229910052700 potassium Inorganic materials 0.000 abstract description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003337 fertilizer Substances 0.000 abstract description 5
- 239000011591 potassium Substances 0.000 abstract description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 244000271437 Bambusa arundinacea Species 0.000 description 1
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 241000124033 Salix Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of additive for improving biomass molding fuel ash softening point of the present invention is porous ceramics, microcline, bauxite, silicon carbide, sponge iron, Brown Alundum composition.A kind of additive for improving biomass molding fuel ash softening point of the present invention, sponge iron in additive is made of iron ore powder, ferrosilicon powder, clay, and optimize the preparation process of sponge iron, the sponge iron being prepared can promote the potassium element in biomass molding fuel to generate the high potassium carbonate of solubility, keep the fertilizer efficiency of bottom ash significant；It joined microcline, bauxite, silicon carbide, Brown Alundum in additive, biomass molding fuel ash softening point can be made to rise 100 DEG C or so.
Description
Technical field
The present invention relates to clean energy resourcies to utilize field, and in particular to a kind of to improve adding for biomass molding fuel ash softening point
Add agent.
Background technique
Biomass molding fuel is sliced-crushing-removal of impurities-fine powder-screening-mixing-using forest and agricultural biomass as main material
The techniques such as softening-quenched-extruding-drying-cooling-quality inspection-packaging, are eventually fabricated molding environment-protecting fuel.Biomass molding fuel
Smoke-free and tasteless, clean and environmental protection when burning, sulfur content, ash content, nitrogen content etc. are far below coal, and petroleum etc. is that a kind of environmental protection is clear
The clean energy enjoys the good reputation of " green coal ".
Since the constituent contents such as K, Na, Cl, Ca are higher in biomass fuel, the low-melting spy of biomass ash is determined
Property.The ash softening point (softening temperature ST) of plant is typically 850~1300 DEG C of section, and different plants has different ashes
Melting temperatur, 850~950 DEG C as herbaceous plant, general 1030~1300 DEG C of xylophyta are differed, and different tree species also have not
With ash softening point, such as 1020 DEG C of Chinese fir, 1200 DEG C of eucalyptus, 1300 DEG C of U.S. bamboo willow.The burner hearth central temperature of biomass boiler
Substantially all reach 1150 DEG C~1200 DEG C.Therefore, coking phenomenon, biomass fuel can all occur in most biomass molding fuel
Expect that burning machine special coking phenomenon is more prominent, not only reduce the thermal conversion rate of combustion apparatus, also equipment can be caused to corrode and grinds
Damage.To alleviate coking phenomenon, suitable additives such as aluminum oxide, magnesia, kaolin can be added in biomass fuel
Deng, then when firing biomass fuel, the potassium element in the bottom ash of generation exists mostly in the form of potassium silicate, leads to the bottom ash generated
Fertilizer efficiency is poor.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide simple processes, a kind of practical raising biology
The additive of matter shaped fuel ash softening point.
To achieve the goals above, The technical solution adopted by the invention is as follows:
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
45~50 parts of hole ceramics, 5~7 parts of microcline, 10~12 parts of bauxite, 3~5 parts of silicon carbide, 15~20 parts of sponge iron, palm fibre are just
It is 5~8 parts beautiful.
Preferably, a kind of additive improving biomass molding fuel ash softening point is grouped by the group of following parts by weight
At: 47 parts of porous ceramics, 6 parts of microcline, 11 parts of bauxite, 4 parts of silicon carbide, 16 parts of sponge iron, 6 parts of Brown Alundum.
Preferably, the sponge iron is grouped as by the group of following parts by weight: 80~90 parts of iron ore powder, ferrosilicon powder 3~5
Part, 7~10 parts of clay；The preparation method of the sponge iron includes next step: 1) mixing iron ore powder, ferrosilicon powder, clay
Uniformly, and 500 mesh~700 mesh are crushed to, obtain mixture；2) mixture is put into immersion 2h~3h in metabisulfite solution, then
It dries and pelletizes, obtain mixture particle；3) by mixture particle high temperature reduction, reduction temperature is 1000 DEG C~1200 DEG C, goes back
The former time is 6h~9h, obtains reduction particle；4) reduction particle to be taken out to be cooled to room temperature, cooling rate is 5 DEG C/s~10 DEG C/s,
Obtain the sponge iron.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 400 mesh~500 mesh, obtained
To mixed-powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 3~5:1, temperature be 45 DEG C~
50 DEG C, pressure be 1.2MPa~1.5MPa under conditions of impregnate 4h~6h；
(3) porous ceramics is added in the mixed liquor in step (2), is 5 DEG C~7 DEG C, stirring rate 300r/min in temperature
5h~8h is stirred under conditions of~500r/min；
(4) mixed liquor in step (3) 3h~5h is roasted to fire to get the raising biomass moulding at 800 DEG C~900 DEG C
Expect the additive of ash softening point.
Preferably, microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed in the step (1), and
450 mesh are crushed to, mixed-powder is obtained.
Preferably, mixed powder is added in the mixed liquor that M Cr and ether volume ratio are 4:1 in the step (2)
5h is impregnated under conditions of temperature is 47 DEG C, pressure is 1.3MPa in end.
Preferably, porous ceramics is added in mixed liquor in the step (3), temperature is 6 DEG C, stirring rate is
6h is stirred under conditions of 400r/min.
Preferably, the mixed liquor in step (3) 4h is roasted in the step (4) to give birth to get the raising at 850 DEG C
The additive of substance shaped fuel ash softening point.
A kind of additive for improving biomass molding fuel ash softening point of the present invention, by microcline, bauxite, carbonization
Silicon, sponge iron, Brown Alundum load on porous ceramics, and the ash softening point of biomass molding fuel not only can be improved, can be with
There is the potassium element in the bottom ash generated more in the form of potassium carbonate, keeps the fertilizer efficiency of bottom ash significant.
A kind of additive for improving biomass molding fuel ash softening point of the present invention, the sponge iron in additive is by iron ore
Powder, ferrosilicon powder, clay composition, and optimize the preparation process of sponge iron, the sponge iron being prepared can promote biomass at
Potassium element in type fuel generates the high potassium carbonate of solubility, keeps the fertilizer efficiency of bottom ash significant.
A kind of additive for improving biomass molding fuel ash softening point of the present invention, joined in additive microcline,
Bauxite, silicon carbide, Brown Alundum can make biomass molding fuel ash softening point rise 100 DEG C or so.
Specific embodiment
The following examples can help those skilled in the art that the present invention is more fully understood, but cannot be with any
Mode limits the present invention.
Embodiment 1
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
Hole ceramics 45 parts, 5 parts of microcline, 10 parts of bauxite, 3 parts of silicon carbide, 15 parts of sponge iron, 5 parts of Brown Alundum, the sponge iron by
The group of following parts by weight is grouped as: 80 parts of iron ore powder, 3 parts of ferrosilicon powder, 7 parts of clay；The preparation method of the sponge iron includes
Iron ore powder, ferrosilicon powder, clay: 1) being uniformly mixed by next step, and is crushed to 500 mesh, obtains mixture；2) by mixture
It is put into metabisulfite solution and impregnates 2h, then dry and pelletize, obtain mixture particle；3) by mixture particle high temperature reduction, also
Former temperature is 1000 DEG C, recovery time 6h, obtains reduction particle；4) it takes out reduction particle to be cooled to room temperature, cooling rate 5
DEG C/s, obtain the sponge iron.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 400 mesh, mixed
Powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 3:1, is 45 DEG C, pressure in temperature
To impregnate 4h under conditions of 1.2MPa；
(3) porous ceramics is added in the mixed liquor in step (2), in the condition that temperature is 5 DEG C, stirring rate is 300r/min
Lower stirring 5h；
(4) mixed liquor in step (3) is roasted to 3h at 800 DEG C to get the raising biomass molding fuel ash softening point
Additive.
Embodiment 2
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
Hole ceramics 50 parts, 7 parts of microcline, 12 parts of bauxite, 5 parts of silicon carbide, 20 parts of sponge iron, 8 parts of Brown Alundum, the sponge iron by
The group of following parts by weight is grouped as: 90 parts of iron ore powder, 5 parts of ferrosilicon powder, 10 parts of clay；The preparation method of the sponge iron includes
Iron ore powder, ferrosilicon powder, clay: 1) being uniformly mixed by next step, and is crushed to 700 mesh, obtains mixture；2) by mixture
It is put into metabisulfite solution and impregnates 3h, then dry and pelletize, obtain mixture particle；3) by mixture particle high temperature reduction, also
Former temperature is 1200 DEG C, recovery time 9h, obtains reduction particle；4) it takes out reduction particle to be cooled to room temperature, cooling rate is
10 DEG C/s, obtain the sponge iron.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 500 mesh, mixed
Powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 5:1, is 50 DEG C, pressure in temperature
To impregnate 6h under conditions of 1.5MPa；
(3) porous ceramics is added in the mixed liquor in step (2), in the condition that temperature is 7 DEG C, stirring rate is 500r/min
Lower stirring 8h；
(4) mixed liquor in step (3) is roasted to 5h at 900 DEG C to get the raising biomass molding fuel ash softening point
Additive.
Embodiment 3
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
Hole ceramics 47 parts, 6 parts of microcline, 11 parts of bauxite, 4 parts of silicon carbide, 16 parts of sponge iron, 6 parts of Brown Alundum, the sponge iron by
The group of following parts by weight is grouped as: 85 parts of iron ore powder, 4 parts of ferrosilicon powder, 8 parts of clay；The preparation method of the sponge iron includes
Iron ore powder, ferrosilicon powder, clay: 1) being uniformly mixed by next step, and is crushed to 600 mesh, obtains mixture；2) by mixture
It is put into metabisulfite solution and impregnates 2.5h, then dry and pelletize, obtain mixture particle；3) by mixture particle high temperature reduction,
Reduction temperature is 1100 DEG C, recovery time 7h, obtains reduction particle；4) it takes out reduction particle to be cooled to room temperature, cooling rate
For 7 DEG C/s, the sponge iron is obtained.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 450 mesh, mixed
Powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 4:1, is 47 DEG C, pressure in temperature
To impregnate 5h under conditions of 1.3MPa；
(3) porous ceramics is added in the mixed liquor in step (2), in the condition that temperature is 6 DEG C, stirring rate is 400r/min
Lower stirring 6h；
(4) mixed liquor in step (3) is roasted to 4h at 850 DEG C to get the raising biomass molding fuel ash softening point
Additive.
Embodiment 4
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
Hole ceramics 47 parts, 6 parts of microcline, 11 parts of bauxite, 4 parts of silicon carbide, 16 parts of sponge iron, 6 parts of Brown Alundum, the sponge iron
Iron-content reaches 98%.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 450 mesh, mixed
Powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 4:1, is 47 DEG C, pressure in temperature
To impregnate 5h under conditions of 1.3MPa；
(3) porous ceramics is added in the mixed liquor in step (2), in the condition that temperature is 6 DEG C, stirring rate is 400r/min
Lower stirring 6h；
(4) mixed liquor in step (3) is roasted to 4h at 850 DEG C to get the raising biomass molding fuel ash softening point
Additive.
Comparative example 1
Formula are as follows: a kind of additive for improving biomass molding fuel ash softening point, is to be grouped as by the group of following parts by weight: more
Hole ceramics 47 parts, 6 parts of microcline, 11 parts of bauxite, 4 parts of silicon carbide, 6 parts of Brown Alundum.
The preparation method comprises the following steps: a kind of preparation method for the additive for improving biomass molding fuel ash softening point, including it is following
Step:
(1) microcline, bauxite, silicon carbide, Brown Alundum are uniformly mixed, and are crushed to 450 mesh, obtain mixed-powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 4:1, is 47 DEG C, pressure in temperature
To impregnate 5h under conditions of 1.3MPa；
(3) porous ceramics is added in the mixed liquor in step (2), in the condition that temperature is 6 DEG C, stirring rate is 400r/min
Lower stirring 6h；
(4) mixed liquor in step (3) is roasted to 4h at 850 DEG C to get the raising biomass molding fuel ash softening point
Additive.
Comparative example 2
Biomass molding fuel is put into ignition in combustion apparatus, the step of biomass molding fuel ignition are as follows: 1)
The air of 12L/min is passed through in combustion chamber in combustion apparatus；2) biomass molding fuel is added in the combustion chamber；3) it catches fire
Burning: for setting chamber temperature from room temperature to 1100 DEG C, heating rate is 20 DEG C/min, and biomass molding fuel burning is complete
Finish.
The following table 1 provides the detection knot for the bottom ash that the biomass molding fuel burning in embodiment 1-4 and comparative example 1-2 obtains
Fruit.
Table 1
The detection knot for the bottom ash that the biomass molding fuel burning in embodiment 1-4 and comparative example 1-2 provided by table 1 obtains
Fruit, it is known that, a kind of additive for improving biomass molding fuel ash softening point of the present invention, the sponge iron in additive is by iron ore
Powder, ferrosilicon powder, clay composition, and optimize the preparation process of sponge iron, the sponge iron being prepared can promote biomass at
Potassium element in type fuel generates the high potassium carbonate of solubility, keeps the fertilizer efficiency of bottom ash significant；Joined in additive microcline,
Bauxite, silicon carbide, Brown Alundum can make biomass molding fuel ash softening point rise 100 DEG C or so.
Although above the present invention is described in detail with a general description of the specific embodiments,
On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause
This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.
Claims (8)
1. a kind of additive for improving biomass molding fuel ash softening point, which is characterized in that be by the component of following parts by weight
Composition: 45~50 parts of porous ceramics, 5~7 parts of microcline, 10~12 parts of bauxite, 3~5 parts of silicon carbide, sponge iron 15~20
Part, 5~8 parts of Brown Alundum.
2. a kind of additive for improving biomass molding fuel ash softening point according to claim 1, which is characterized in that be
It is grouped as by the group of following parts by weight: 47 parts of porous ceramics, 6 parts of microcline, 11 parts of bauxite, 4 parts of silicon carbide, sponge iron 16
Part, 6 parts of Brown Alundum.
3. a kind of additive for improving biomass molding fuel ash softening point according to claim 1, which is characterized in that institute
It states sponge iron to be grouped as by the group of following parts by weight: 80~90 parts of iron ore powder, 3~5 parts of ferrosilicon powder, 7~10 parts of clay；It is described
The preparation method of sponge iron includes next step: 1) iron ore powder, ferrosilicon powder, clay are uniformly mixed, and be crushed to 500 mesh~
700 mesh, obtain mixture；2) mixture is put into immersion 2h~3h in metabisulfite solution, then dries and pelletizes, obtain mixture
Particle；3) by mixture particle high temperature reduction, reduction temperature is 1000 DEG C~1200 DEG C, the recovery time is 6h~9h, is gone back
Former particle；4) it takes out reduction particle to be cooled to room temperature, cooling rate is 5 DEG C/s~10 DEG C/s, obtains the sponge iron.
4. a kind of preparation of the additive of raising biomass molding fuel ash softening point described in any one of claim 1-3
Method, which comprises the following steps:
(1) microcline, bauxite, silicon carbide, sponge iron, Brown Alundum are uniformly mixed, and are crushed to 400 mesh~500 mesh, obtained
To mixed-powder；
(2) mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 3~5:1, temperature be 45 DEG C~
50 DEG C, pressure be 1.2MPa~1.5MPa under conditions of impregnate 4h~6h；
(3) porous ceramics is added in the mixed liquor in step (2), is 5 DEG C~7 DEG C, stirring rate 300r/min in temperature
5h~8h is stirred under conditions of~500r/min；
(4) mixed liquor in step (3) 3h~5h is roasted to fire to get the raising biomass moulding at 800 DEG C~900 DEG C
Expect the additive of ash softening point.
5. a kind of preparation method of additive for improving biomass molding fuel ash softening point according to claim 4,
It is characterized in that, is uniformly mixed microcline, bauxite, silicon carbide, sponge iron, Brown Alundum in the step (1), and be crushed to
450 mesh, obtain mixed-powder.
6. a kind of preparation method of additive for improving biomass molding fuel ash softening point according to claim 4,
It is characterized in that, mixed-powder is added in the mixed liquor that M Cr and ether volume ratio are 4:1 in the step (2),
Temperature is 47 DEG C, pressure impregnates 5h under conditions of being 1.3MPa.
7. a kind of preparation method of additive for improving biomass molding fuel ash softening point according to claim 4,
It is characterized in that, porous ceramics is added in mixed liquor in the step (3), temperature is 6 DEG C, stirring rate is 400r/min's
Under the conditions of stir 6h.
8. a kind of preparation method of additive for improving biomass molding fuel ash softening point according to claim 4,
Be characterized in that, the mixed liquor in step (3) roasted at 850 DEG C in the step (4) 4h to get the raising biomass at
The additive of type fuel ash softening point.
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