CN107973610A - A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material - Google Patents
A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material Download PDFInfo
- Publication number
- CN107973610A CN107973610A CN201711247967.XA CN201711247967A CN107973610A CN 107973610 A CN107973610 A CN 107973610A CN 201711247967 A CN201711247967 A CN 201711247967A CN 107973610 A CN107973610 A CN 107973610A
- Authority
- CN
- China
- Prior art keywords
- carborundum
- sagger
- silicon carbide
- discarded
- ramming mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 105
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000002994 raw material Substances 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000004927 clay Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical class [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000011236 particulate material Substances 0.000 claims abstract description 10
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims description 5
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical group C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 25
- 238000001816 cooling Methods 0.000 abstract description 19
- 239000000463 material Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 239000010949 copper Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000011449 brick Substances 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000945 filler Substances 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 5
- 238000011056 performance test Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
- C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
- C04B2235/445—Fluoride containing anions, e.g. fluosilicate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses it is a kind of be suitable between filling blast furnace copper cooling stave horizontal, vertical gap, between groove, cooling wall inlaid brick gap carborundum ramming mass, belong to unshape refractory technical field.The carborundum ramming mass is with discarded silicon carbide sagger, each component and its shared mass percent include：Discarded silicon carbide sagger particulate material 50~65%, discards carborundum sagger powder 18~25%, silicon powder 2~5%, native graphite 1~6%, raw clay 1~3%, curing agent 1~2%, modified water glass 6~9%.Carborundum ramming mass of the present invention is prepared using waste and old silicon carbide sagger material as primary raw material, there is normal temperature cure, high strength after curing, consistency height, excellent heat conductivity, and it can realize the recycling problem of discarded silicon carbide sagger, and low in raw material price, source and the stable quality being related to, there is important economy and environmental benefit.
Description
Technical field
The invention belongs to unshape refractory field, and in particular to a kind of using discarded silicon carbide sagger as primary raw material
Carborundum ramming mass.
Background technology
Blast-furnace shaft, bosh, furnace bosh position, as cooling device, utilize the high-termal conductivity of copper generally using copper cooling wall
Can, furnace heat is taken away in time by cooling water.Horizontal, vertical gap between copper cooling wall, gap is equal between cooling wall inlaid brick
It is filled using highly heat-conductive material, cooling wall and high heat conduction filler collective effect, reduce the temperature of cooling wall body, more sharp
In forming slag crust protection inner lining material and cooling wall, and the filler of good compactness can effectively stop letting out for coal gas in blast furnace
Dew, protects furnace shell, extends blast furnace service life.According to filler heat conductivility is poor, consistency is low, when heat reaches the position
It is hindered, it is impossible to conduct in time, cause the position heat to be concentrated, temperature rise, accelerates the erosion of filler and cooling wall
Degree, cooling wall damage, burn-through when serious, it is necessary to carry out blowing out maintenance.Material density is low to cause high temperature and pressure in blast furnace
Coal gas, to furnace shell, causes casing temperature to raise by the gap string leakage of ramming mass, it is necessary to takes fetch water cooling or furnace shell perforate filling
Starch to block gap, influence blast furnace and normally produce.The quality of filler is the weak link in cooling system, and domestic and international blast furnace is general
Carborundum ramming mass is selected as the position filler.
The raw materials used general middle-grade carborundum for using content >=90% of Conventional silicon carbide ramming mass.Made using 90 carborundum
For material feedstock when, carborundum crystals are mostly needle-shaped or column crystal, crystallize that imperfect and crystal is smaller, plane of crystal consistency
It is not high, stomata is more；The material that part does not participate in reaction completely is deposited in carborundum as impurity, and heat conductivility is not high, smashes
Dnockout finished product thermal conductivity factor is not high, influences normal blast furnace cooling system heat transfer.
Substantial amounts of waste and old silicon carbide sagger product can be produced in national ceramic industry production process, these discarded saggar quantity
It is huge, and extremely difficult processing, most of discarded saggar exemplary process mode use to bury or degrading.Therefore enterprise needs to buy ground
Abandon or bury these increasing waste materials, increase production cost, while also result in the significant wastage of resource and serious
Environmental pollution.Since the carborundum species used in the waste and old saggar of separate sources, carborundum content, the porosity have bigger difference,
The quality of waste material is also different, and most of silicon carbide articles enterprise is higher to the quality requirements of carborundum, substantially will not be to waste and old
Material is recycled, therefore the recovery utilization rate of waste and scrap is relatively low.In national environmental protection, the situation is tense and resistance to material business economic
Under the pressure that benefit constantly declines, active response national energy-saving, consumption reduction policy, make the waste and old sagger in carborundum ramming mass
Regeneration become an important topic.
The content of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of using discarded silicon carbide sagger as primary raw material
Carborundum ramming mass, it has excellent compactness and heat conductivility, and the manufacturing cost being related to is low, raw material sources enrich, can
Effectively solve the problems, such as the recycling of waste and old sagger, there is good economy and environmental benefit.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material, each component wrap by mass percentage
Include：Discarded silicon carbide sagger particulate material 50~65%, discards carborundum sagger powder 18~25%, silicon powder 2~5%, natural stone
Ink 1~6%, raw clay 1~3%, curing agent 1~2%, modified water glass 6~9%.
Preferably, mass percent shared by the modified water glass is 6~7.5%.
In such scheme, the discarded silicon carbide sagger particulate material is recycled by discarded silicon carbide sagger, chosen, clearly
Wash, broken rear gained, it presses 1 by the two kinds of particles that particle diameter is 3~1mm and 1~0.074mm:The mass ratio of (0.7~0.9) mixes
Conjunction forms；SiC content >=80wt%.
In such scheme, the discarded carborundum sagger powder recycled via discarded silicon carbide sagger, chosen, cleaned,
Crushing and grinding, screening gained, it by granularity is≤0.074mm, two kinds of powders of≤0.045mm press 1:The quality of (0.1~0.3)
Than mixing；SiC content >=80wt%.
In such scheme, the curing agent is prodan, one or both of aluminous cement, granularity for≤
0.074mm。
In such scheme, in the native graphite：C >=98wt%, current density >=18A/cm2, granularity≤0.074mm.
In such scheme, granularity≤5 μm of the raw clay.
In such scheme, SiO in the silicon powder2>=94wt%, granularity≤5 μm.
In such scheme, the proportion of the modified water glass is 1.25~1.35g/cm3, modulus 2.6~3.
Compared with prior art, beneficial effects of the present invention are：
1) present invention is using waste and old silicon carbide sagger material as base stock, wherein discarded saggar product is through calcining repeatedly, in it
Portion is fully sintered, and consistency is higher；The additive amount of bonding agent is few needed for the ramming mass of waste and old silicon carbide sagger material production, has
Beneficial to reducing the porosity and improving consistency, gas leakage passage in blast furnace can be avoided the formation of, avoids high temperature and pressure coal gas string
Leakage causes casing temperature rise, rubescent or even production development accident etc., ensures the normal production run of blast furnace；Natural high power graphite
Belong to flexible material, can further lift the workability and heat conductivility of ramming mass；The room temperature of gained ramming mass, high-temperature behavior phase
There is certain lifting to 90 carborundum ramming masses, its key index thermal conductivity factor also greatly improves；The present invention is given birth to using waste and old saggar
The ramming mass of production fully meets cooling wall ramming mass performance requirement, can quickly conduct to outside stove furnace heat in time, more holds
Slag crust protection cooling wall body and filler are easily formed, extends the service life of blast furnace cooling system.
2) carborundum belongs to poor material, and the ramming mass workability of pure carborundum production is poor, need to add a certain amount of plasticising
(clay) is expected to increase its visco-plasticity, to reach its requirement；And the waste and old repressed shaping of saggar, itself is containing a certain amount of viscous
Soil, calcined bauxite in powder, and carborundum is formed and is wrapped up, the lean property of saggar silicon carbide waste after crushing substantially reduces, and workability is larger to be changed
It is kind, it only need to add a small amount of plasticizers and adjust its visco-plasticity can reach requirement, can largely reduce the addition of raw clay
(clay belongs to impurity component for carborundum ramming mass, can form a large amount of liquid phases at high temperature, reduces the high temperature of material
Performance), effectively lift heat conductivility and high-temperature behavior.
3) present invention substitutes common carborundum substantially using waste and old saggar carborundum, realizes waste and old silicon carbide sagger material and returns
The industrialization recycled is received, is turned waste into wealth, a large amount of mineral resources and the energy has been saved for country, has reduced environmental pollution；Carbonization
Silicon saggar is waste and scrap, and reserves are larger, and cost recovery is relatively low, largely reduces resistance to material enterprise's production cost, significantly
Ground improves the economic benefit and social benefit of enterprise.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
In following embodiments, the discarded silicon carbide sagger particulate material recycled by discarded silicon carbide sagger, chosen,
Cleaning, broken rear gained, it presses 1 by the two kinds of particles that particle diameter is 3~1mm and 1~0.074mm:0.8 mass ratio mixing and
Into；SiC content >=80%.
The discarded carborundum sagger powder is recycled via discarded silicon carbide sagger, chosen, being cleaned, crushing and grinding,
Screening gained, it by granularity is≤0.074mm, two kinds of powders of≤0.045mm press 1:0.2 mass ratio mixes；SiC contains
Amount >=80%.
The native graphite meets claimed below：C >=98%, current density >=18A/cm2, granularity≤0.074mm.
The raw clay meets claimed below：Granularity≤5 μm.
The silicon powder meets claimed below：SiO2>=94%, granularity≤5 μm.
The curing agent is prodan, and granularity is≤0.074mm.
The modified water glass meets claimed below：Proportion is 1.31g/cm3, modulus 2.8.
Embodiment 1
It is a kind of using discarded silicon carbide sagger as the ramming mass of primary raw material, each component and its shared mass percent are：It is useless
Abandon silicon carbide sagger particulate material 59%, waste and old silicon carbide sagger powder 24.6%, silicon powder 2%, raw clay 2%, native graphite
4%, curing agent 1.4%, modified water glass 7%.
According to above-mentioned formula, ramming mass point bi-component (powder and bonding agent) packaging is transported to construction site, by powder and
Bonding agent is mixed evenly in proportion, that is, obtains the carborundum ramming mass, and can be applied to blast furnace cooling stave gap into
Row ramming is constructed.The performance test results of carborundum ramming mass are shown in Table 1 obtained by the present embodiment.
The performance test results of carborundum ramming mass prepared by 1 embodiment 1 of table
| SiC% | 73.1 |
| Thermal conductivity factor (350 DEG C) W/m.k | 8.72 |
| Flexural strength (200 DEG C × 24h) MPa | 9.5 |
| Compressive resistance (200 DEG C × 24h) MPa | 33.7 |
| Bulk density (200 DEG C × 24h) g/cm3 | 2.43 |
Embodiment 2
It is a kind of using discarded silicon carbide sagger as the ramming mass of primary raw material, each component and its shared mass percent are：It is useless
Abandon silicon carbide sagger particulate material 61.4%, waste and old silicon carbide sagger fine powder 21%, silicon powder 4.2%, raw clay 1.5%, naturally
Graphite 3%, curing agent 1.6%, modified water glass 7.3%.
According to above-mentioned formula, ramming mass point bi-component (powder and bonding agent) packaging is transported to scene, by powder and combination
Agent is mixed evenly in proportion, that is, obtains the carborundum ramming mass, and can be applied to blast furnace cooling stave gap and smash
Play construction.The performance test results of carborundum ramming mass are shown in Table 2 obtained by the present embodiment.
The performance test results of carborundum ramming mass prepared by 2 embodiment 2 of table
| SiC% | 70.5 |
| Thermal conductivity factor (350 DEG C) W/m.k | 8.34 |
| Flexural strength (200 DEG C × 24h) MPa | 8.7 |
| Compressive resistance (200 DEG C × 24h) MPa | 32.1 |
| Bulk density (200 DEG C × 24h) g/cm3 | 2.42 |
Comparative example
The detection for the carborundum ramming mass for using 90 carborundum to be produced for raw material certain domestic factory, the detection is according to existing
National standard or professional standard carry out, and specific testing result is shown in Table 3.
Table 3 uses the performance test results for the carborundum ramming mass that 90 carborundum produce for raw material
| SiC% | 78.3 |
| Bonding agent % | 10% |
| Thermal conductivity factor (350 DEG C) W/m.k | 6.36 |
| Flexural strength (200 DEG C × 24h) MPa | 7.8 |
| Compressive resistance (200 DEG C × 24h) MPa | 29.4 |
| Bulk density (200 DEG C × 24h) g/cm3 | 2.31 |
The carborundum ramming mass volume for using waste and old silicon carbide sagger material to be prepared for raw material it can be seen from table 1,2,3
Density is higher than the ramming mass that 90 carborundum are raw material.The consistency for the saggar carborundum that the present invention uses is higher, and when stirring combines
Agent addition reduces, and dry posterior spiracle rate reduces, and causes bulk density to improve, material density increase；And the saggar after crushing
The lean property of silicon carbide waste substantially reduces, and advantageously reduces the plasticizers such as raw clay, effectively lifts heat conductivility and high-temperature behavior, institute
The thermal conductivity factor for obtaining carborundum ramming mass reaches more than 8.3W/m.k, the heat conduction better than traditional 90 carborundum for the ramming mass of raw material
Coefficient.
To sum up, carborundum ramming mass of the present invention using waste and old silicon carbide sagger as main material production fully meets blast furnace carbon
The technical requirements of SiClx-carbon rammed mass, turn waste into wealth, and can be used as a kind of high-quality refractory material, largely alleviate by
Sharp rise the immense pressure caused by Nai Cai enterprises in the prices of raw materials.Industrialization recycling to waste and old saggar product is sharp again
With, reduce resource consumption and low emission operation, entreprise cost be greatly reduced, adds the performance of enterprises, alleviates environmental pollution,
Realize and reduce solid waste discharge and energy-saving target, there is important economy and environmental benefit.
Obviously, above-described embodiment is only intended to clearly illustrate made example, and is not the limitation to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change or change therefore amplified
Move within still in the protection domain of the invention.
Claims (9)
1. a kind of to discard carborundum ramming mass of the silicon carbide sagger as primary raw material, each component includes by mass percentage：
Discarded silicon carbide sagger particulate material 50~65%, discards carborundum sagger powder 18~25%, silicon powder 2~5%, native graphite 1
~6%, raw clay 1~3%, curing agent 1~2%, modified water glass 6~9%.
2. carborundum ramming mass according to claim 1, it is characterised in that the discarded silicon carbide sagger particulate material is by grain
Two kinds of discarded silicon carbide sagger particles that footpath is 3~1mm and 1~0.074mm press 1:The mass ratio of (0.7~0.9) mixes；
Wherein SiC content >=80%.
3. carborundum ramming mass according to claim 1, it is characterised in that the discarded carborundum sagger powder is by granularity
≤ 0.074mm, two kinds of≤0.045mm discarded carborundum sagger powder bodies press 1:The mass ratio of (0.1~0.3) mixes；Its
Middle SiC content >=80%.
4. carborundum ramming mass according to claim 1, it is characterised in that the curing agent is prodan, calcium aluminate
One or both of cement, granularity are≤0.074mm.
5. carborundum ramming mass according to claim 1, it is characterised in that in the native graphite：C >=98%, electric current
Density >=18A/cm2, granularity≤0.074mm.
6. carborundum ramming mass according to claim 1, it is characterised in that granularity≤5 μm of the raw clay.
7. carborundum ramming mass according to claim 1, it is characterised in that SiO in the silicon powder2>=94%, granularity≤
5μm。
8. carborundum ramming mass according to claim 1, it is characterised in that the proportion of the modified water glass for 1.25~
1.35g/cm3, modulus 2.6~3.
9. the preparation method of any one of the claim 1~8 carborundum ramming mass, it is characterised in that
1) each raw material is weighed by proportioning, each component includes by mass percentage：Discarded silicon carbide sagger particulate material 50~65%,
Discarded carborundum sagger powder 18~25%, silicon powder 2~5%, native graphite 1~6%, raw clay 1~3%, curing agent 1~
2%, modified water glass 6~9%；
2) by the discarded silicon carbide sagger particulate material weighed, discarded carborundum sagger powder, silicon powder, native graphite, raw clay, solid
Agent carries out mechanical agitation and is mixed into uniform aggregates in a dry state, then adds modified water glass, after being sufficiently mixed and stirring evenly i.e.
It can carry out ramming construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247967.XA CN107973610B (en) | 2017-12-01 | 2017-12-01 | Silicon carbide ramming mass taking waste silicon carbide saggar as main raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711247967.XA CN107973610B (en) | 2017-12-01 | 2017-12-01 | Silicon carbide ramming mass taking waste silicon carbide saggar as main raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107973610A true CN107973610A (en) | 2018-05-01 |
| CN107973610B CN107973610B (en) | 2021-02-09 |
Family
ID=62009003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711247967.XA Active CN107973610B (en) | 2017-12-01 | 2017-12-01 | Silicon carbide ramming mass taking waste silicon carbide saggar as main raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107973610B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759736A (en) * | 2019-11-28 | 2020-02-07 | 沈洋 | Recrystallized silicon carbide sagger and application thereof to burning of lithium battery anode material |
| CN110818396A (en) * | 2019-11-29 | 2020-02-21 | 北京建筑材料科学研究总院有限公司 | High-temperature-resistant material and preparation method thereof |
| CN111440004A (en) * | 2020-05-19 | 2020-07-24 | 河北昊兴耐火炉料有限公司 | Nano composite material carbon pressed sealing material for blast furnace |
| CN111763088A (en) * | 2019-04-02 | 2020-10-13 | 上海梅山钢铁股份有限公司 | Spray paint for joint of blast furnace cast iron cooling wall and blast furnace lining and preparation method thereof |
| CN111777417A (en) * | 2020-07-29 | 2020-10-16 | 攀钢冶金材料有限责任公司 | Silicon carbide-carbon ramming mass for blast furnace slag high-temperature carbonization electric furnace and preparation method thereof |
| CN112661523A (en) * | 2021-01-23 | 2021-04-16 | 江苏锦耐新材料科技有限公司 | Ramming material for steel ladle and preparation method thereof |
| CN113319258A (en) * | 2021-06-02 | 2021-08-31 | 中钢南京环境工程技术研究院有限公司 | Method for preparing fluorine-free continuous casting covering slag by using rear lithium battery sagger |
| CN114737012A (en) * | 2022-04-29 | 2022-07-12 | 河南机电职业学院 | Slag melting agent prepared from waste saggars for converter steelmaking |
| CN114736039A (en) * | 2022-04-29 | 2022-07-12 | 河南机电职业学院 | Waste sagger tundish coating and using method |
| CN115321985A (en) * | 2022-08-22 | 2022-11-11 | 中冶武汉冶金建筑研究院有限公司 | High-thermal-conductivity filler for blast furnace |
| CN116334737A (en) * | 2023-04-11 | 2023-06-27 | 通威微电子有限公司 | Crucible, recycling device and recycling method for recycling silicon carbide waste material by liquid phase method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153357A (en) * | 2010-12-23 | 2011-08-17 | 河南科技大学 | Ultra-low cement or non-cement in-situ silicon carbide whisker self-bonding silicon carbide prefabricated part and preparation method |
| CN103880448A (en) * | 2014-03-27 | 2014-06-25 | 中钢集团洛阳耐火材料研究院有限公司 | Large casting-molding self-combined silicon carbide product |
| CN106045529A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner castable containing 80% of waste refractories or above |
| CN106045528A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner ramming material containing 90% of waste refractories or above |
| CN107794324A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | High-wear-resistance blast furnace copper cooling wall and manufacturing method thereof |
-
2017
- 2017-12-01 CN CN201711247967.XA patent/CN107973610B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153357A (en) * | 2010-12-23 | 2011-08-17 | 河南科技大学 | Ultra-low cement or non-cement in-situ silicon carbide whisker self-bonding silicon carbide prefabricated part and preparation method |
| CN103880448A (en) * | 2014-03-27 | 2014-06-25 | 中钢集团洛阳耐火材料研究院有限公司 | Large casting-molding self-combined silicon carbide product |
| CN106045529A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner castable containing 80% of waste refractories or above |
| CN106045528A (en) * | 2016-05-31 | 2016-10-26 | 中国冶集团有限公司 | Iron runner ramming material containing 90% of waste refractories or above |
| CN107794324A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | High-wear-resistance blast furnace copper cooling wall and manufacturing method thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111763088A (en) * | 2019-04-02 | 2020-10-13 | 上海梅山钢铁股份有限公司 | Spray paint for joint of blast furnace cast iron cooling wall and blast furnace lining and preparation method thereof |
| CN111763088B (en) * | 2019-04-02 | 2022-03-15 | 上海梅山钢铁股份有限公司 | Spray paint for joint of blast furnace cast iron cooling wall and blast furnace lining and preparation method thereof |
| CN110759736A (en) * | 2019-11-28 | 2020-02-07 | 沈洋 | Recrystallized silicon carbide sagger and application thereof to burning of lithium battery anode material |
| CN110818396A (en) * | 2019-11-29 | 2020-02-21 | 北京建筑材料科学研究总院有限公司 | High-temperature-resistant material and preparation method thereof |
| CN111440004B (en) * | 2020-05-19 | 2022-04-15 | 河北昊兴耐火炉料有限公司 | Nano composite material carbon pressed sealing material for blast furnace |
| CN111440004A (en) * | 2020-05-19 | 2020-07-24 | 河北昊兴耐火炉料有限公司 | Nano composite material carbon pressed sealing material for blast furnace |
| CN111777417A (en) * | 2020-07-29 | 2020-10-16 | 攀钢冶金材料有限责任公司 | Silicon carbide-carbon ramming mass for blast furnace slag high-temperature carbonization electric furnace and preparation method thereof |
| CN112661523A (en) * | 2021-01-23 | 2021-04-16 | 江苏锦耐新材料科技有限公司 | Ramming material for steel ladle and preparation method thereof |
| CN113319258A (en) * | 2021-06-02 | 2021-08-31 | 中钢南京环境工程技术研究院有限公司 | Method for preparing fluorine-free continuous casting covering slag by using rear lithium battery sagger |
| CN113319258B (en) * | 2021-06-02 | 2022-11-29 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing fluoride-free continuous casting covering slag by using used lithium battery sagger |
| CN114737012A (en) * | 2022-04-29 | 2022-07-12 | 河南机电职业学院 | Slag melting agent prepared from waste saggars for converter steelmaking |
| CN114736039A (en) * | 2022-04-29 | 2022-07-12 | 河南机电职业学院 | Waste sagger tundish coating and using method |
| CN115321985A (en) * | 2022-08-22 | 2022-11-11 | 中冶武汉冶金建筑研究院有限公司 | High-thermal-conductivity filler for blast furnace |
| CN116334737A (en) * | 2023-04-11 | 2023-06-27 | 通威微电子有限公司 | Crucible, recycling device and recycling method for recycling silicon carbide waste material by liquid phase method |
| CN116334737B (en) * | 2023-04-11 | 2023-12-05 | 通威微电子有限公司 | Crucible, recycling device and recycling method for recycling silicon carbide waste material by liquid phase method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107973610B (en) | 2021-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107973610A (en) | A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material | |
| CN109704774B (en) | Preparation method of high-thermal-conductivity castable for hearth of blast furnace bottom instead of carbon brick | |
| CN108484138A (en) | A kind of sliding plate brick and preparation method thereof adding composite alumina micro mist and carbon source | |
| CN109836136A (en) | A kind of low-carbon aluminium-magnesia carbon brick and preparation method thereof | |
| CN101284736A (en) | Antisticking coating mixture for steel-smelting and preparation method threreof | |
| CN108083765B (en) | Low-heat-conduction anti-stripping brick and preparation method thereof | |
| CN105060905B (en) | Low alkaline-resisting mullite brick of aluminium and preparation method thereof | |
| CN101734936A (en) | Preparation method of Si3N4-SiC-C fire-resistant material powder | |
| CN103880447B (en) | COREX stove corundum-mullite composite brick and preparation method thereof | |
| CN105294133A (en) | Mullite silicon carbide composite brick with low thermal conductivity and preparation method thereof | |
| CN106588059A (en) | Prefabricated member for lime rotary kiln and preparation method of prefabricated member | |
| CN110683851A (en) | Environment-friendly acid furnace lining dry type vibration material | |
| CN112456974B (en) | Magnalium spinel brick for co-processing cement kiln and preparation method and application thereof | |
| CN115321956B (en) | High-temperature liquid phase toughened magnesia carbon brick and preparation method thereof | |
| CN103864443B (en) | Cement kiln siliceous mullite brick and preparation method thereof | |
| CN113087504A (en) | High-thermal-conductivity compact silica brick and preparation method thereof | |
| CN110563449A (en) | Environment-friendly magnesia-carbon gunning mix for RH furnace and preparation method thereof | |
| CN104944979A (en) | Preparation method of firebrick used for rotary kiln | |
| CN111925189A (en) | Composite magnesia carbon brick and preparation method thereof | |
| CN103896606B (en) | A kind of blast furnace ceramic cup refractory materials | |
| CN106946550B (en) | A kind of magnesia-spinel brick and preparation method thereof that antistrip performance is excellent | |
| CN107540351A (en) | A kind of high-purity composite of seawater magnesia magnesium aluminate spinel zirconium oxide | |
| CN109133880B (en) | Preparation method of corundum-mullite light brick | |
| CN102424586A (en) | Preparation method of SiC fireproof raw material powder | |
| CN104355635A (en) | Casting material and preparation method and use thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |