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 PDF

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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
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carborundum
sagger
silicon carbide
discarded
ramming mass
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CN107973610B (en
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刘会永
项冰
丛培源
彭云涛
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MCC WUHAN METALLURGICAL BUILDING RESEARCH INSTITUTE Co Ltd
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MCC WUHAN METALLURGICAL BUILDING RESEARCH INSTITUTE Co Ltd
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    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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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

A kind of carborundum ramming mass using discarded silicon carbide sagger as primary raw material
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.
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Cited By (7)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
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-wearing feature blast furnace copper cooling stave and preparation method

Patent Citations (5)

* Cited by examiner, † Cited by third party
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-wearing feature blast furnace copper cooling stave and preparation method

Cited By (9)

* Cited by examiner, † Cited by third party
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
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
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
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

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