CN105669228A - Spray coating for making lining of iron-smelting blast furnace - Google Patents
Spray coating for making lining of iron-smelting blast furnace Download PDFInfo
- Publication number
- CN105669228A CN105669228A CN201610064402.7A CN201610064402A CN105669228A CN 105669228 A CN105669228 A CN 105669228A CN 201610064402 A CN201610064402 A CN 201610064402A CN 105669228 A CN105669228 A CN 105669228A
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- Prior art keywords
- blast furnace
- bauxite
- granularity
- powder
- lining
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Classifications
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- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a spray coating for making a lining of an iron-smelting blast furnace. The spray coating for making the lining of the iron-smelting blast furnace comprises raw materials in percentage by weight as follows: 14%-16% of bauxite with the particle size of 0-1 mm, 18%-22% of bauxite with the particle size of 1-3 mm, 3%-6% of bauxite with the particle size of 180 meshes, 18%-20% of emery powder with the particle size of 180 meshes, 18%-22% of mullite powder, 3%-5% of alumina powder, 3%-5% of silica powder, 17%-19% of Secar71, 0.1%-0.3% of explosionproof fibers, 0.2%-0.5% of aluminum powder, 0.1%-0.3% of sodium tripolyphosphate and 0.2%-0.5% of sodium hexametaphosphate. The spray coating for making the lining of the iron-smelting blast furnace has excellent high-temperature resistance and corrosion resistance and higher compression strength and breaking strength, the linear change rate is low, the service life is long, and the requirement for the spray coating for making the lining of the iron-smelting blast furnace can be completely met.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to a kind of blast furnace and make lining spray paint.
Background technology
Prolonging campaign is the efficient important guarantee of iron and steel enterprise. Along with the development of blast furnace technology, furnace lining refractory material uses environment day by day harsh, and prolonging campaignization requires refractory material is proposed bigger challenge. In recent years, China's blast furnace is big or middle have been repaiied spray paint commonly used and has made lining and namely instead of sizing fire resistive material product with amorphous refractory, thus what greatly shorten blast furnace builds the time by laying bricks or stones, also shorten the maintenance time of blast furnace lining, and reduce maintenance cost. Although newly-built blast furnace uses molded article and uses compared with spray paint, the former phase uses the time longer, but with the building time of blast furnace, easy to maintenance compare, the latter is far superior to the former. Moreover, along with the development of refractory material scientific progress and intelligent machine technology, blastfurnace lining repair technology is more and more perfect, and service life is more and more longer. Blast furnace requires that furnace lining should have high temperature abrasion resistance and high temperature resistance sour gas aggressivity. Blastfurnace lining repair spray paint is gone into operation from constructing to needs have high adhesive rate, big adhesion strength and relatively low water content, to ensure not produce to collapse in spraying process, baking process does not crack and peels off, the heating processes such as low temperature, middle temperature, high temperature remain enough intensity, remains volume stability. Therefore, a kind of new blast furnace lining refractory material high temperature resistant, corrosion resistant is studied significant to extending the life of the blast furnace.
Summary of the invention
It is an object of the invention to provide a kind of blast furnace and make lining spray paint. This blast furnace is made lining spray paint and is had excellent high temperature resistant, decay resistance, long service life, it is possible to ensure the safe operation of blast furnace.
For realizing above-mentioned goal of the invention, the technical solution used in the present invention is:
A kind of blast furnace makes lining spray paint, represent with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14%-16% of 0-1mm, granularity is the bauxite 18%-22% of 1-3mm, granularity is the bauxite 3%-6% of 180 orders, granularity is the schmigel 18%-20% of 180 orders, mullite powder 18%-22%, alumina powder 3%-5%, silicon powder 3%-5%, Secar71 (Lafarge cement) 17%-19%, explosion-proof fiber 0.1%-0.3%, metallic aluminium powder 0.2%-0.5%, sodium tripolyphosphate 0.1%-0.3% and sodium hexametaphosphate 0.2%-0.5%.
Lining spray paint is made according to above-mentioned blast furnace, representing with weight percentage, described blast furnace is made the raw material composition of lining spray paint and is preferably: granularity is the bauxite 15% of 0-1mm, granularity to be the bauxite 20% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 20%, alumina powder 3%, silicon powder 3%, Secar71 (Lafarge cement) 17%, explosion-proof fiber 0.2%, metallic aluminium powder 0.3%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.3%.
Lining spray paint, Al in described Secar71 is made according to above-mentioned blast furnace2O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Described blast furnace makes the preparation method of lining spray paint: the raw material composition and ratio making lining spray paint by above-mentioned blast furnace weighs each raw material for standby, is then stirred by addition blender, namely obtains blast furnace of the present invention and make lining spray paint.
The positive beneficial effect that the present invention obtains:
(1) present invention is with bauxite, schmigel, mullite powder for primary raw material, with Secar71 for additional materials, add the blast furnace that silicon powder, alumina powder, explosion-proof fiber, metallic aluminium powder and Quadrafos prepare simultaneously and make lining spray paint, there is excellent high temperature resistant, decay resistance, and there is higher compressive resistance and rupture strength, Linear change rate is little, service life is up to 2-3, the blastfurnace lining repair requirement to spray paint can be fully met, it is possible to ensure the safe operation of blast furnace. Blast furnace of the present invention makes the properties of product detection parameter index of lining spray paint in Table 1.
(2) blast furnace of the present invention is made in lining spray paint and is added with explosion-proof fiber and polymeric phosphate so that the spray paint prepared has good explosion-proof performance, thermal shock resistance and scour resistance.
(3) blast furnace of the present invention makes lining spray paint formula simply, and low in raw material price, production cost is low, has significant economic benefit.
Table 1 blast furnace of the present invention makes the performance detection parameter of lining spray paint
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in further detail, but is not limiting as present disclosure.
Embodiment 1:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14% of 0-1mm, granularity to be the bauxite 20% of 1-3mm, granularity the be bauxite 5% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 18%, alumina powder 3%, silicon powder 4%, Secar7117%, explosion-proof fiber 0.2%, metallic aluminium powder 0.3%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.3%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 2:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 15% of 0-1mm, granularity to be the bauxite 20% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 20%, alumina powder 3%, silicon powder 3%, Secar7117%, explosion-proof fiber 0.2%, metallic aluminium powder 0.3%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.3%. Wherein, Al in described Secar712O3Content be 68%-71%;SiO in described silicon powder2Content >=96%.
Embodiment 3:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 16% of 0-1mm, granularity to be the bauxite 18% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 20% of 180 orders, mullite powder 18%, alumina powder 4%, silicon powder 3%, Secar7117%, explosion-proof fiber 0.1%, metallic aluminium powder 0.4%, sodium tripolyphosphate 0.1% and sodium hexametaphosphate 0.4%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 4:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14% of 0-1mm, granularity to be the bauxite 22% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 18%, alumina powder 3%, silicon powder 3%, Secar7118%, explosion-proof fiber 0.3%, metallic aluminium powder 0.2%, sodium tripolyphosphate 0.3% and sodium hexametaphosphate 0.2%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 5:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14% of 0-1mm, granularity to be the bauxite 18% of 1-3mm, granularity the be bauxite 6% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 18%, alumina powder 3%, silicon powder 3%, Secar7119%, explosion-proof fiber 0.1%, metallic aluminium powder 0.5%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.2%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 6:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14% of 0-1mm, granularity to be the bauxite 18% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 22%, alumina powder 4%, silicon powder 3%, Secar7117%, explosion-proof fiber 0.2%, metallic aluminium powder 0.2%, sodium tripolyphosphate 0.1% and sodium hexametaphosphate 0.5%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 7:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14% of 0-1mm, granularity to be the bauxite 18% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 18%, alumina powder 5%, silicon powder 5%, Secar7118%, explosion-proof fiber 0.2%, metallic aluminium powder 0.3%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.3%. Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Embodiment 8:
A kind of blast furnace makes lining spray paint, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 15% of 0-1mm, granularity to be the bauxite 18% of 1-3mm, granularity the be bauxite 5% of 180 orders, granularity are the schmigel 20% of 180 orders, mullite powder 18%, alumina powder 3%, silicon powder 3%, Secar7117%, explosion-proof fiber 0.1%, metallic aluminium powder 0.2%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.5%.Wherein, Al in described Secar712O3Content be 68%-71%; SiO in described silicon powder2Content >=96%.
Claims (4)
1. a blast furnace makes lining spray paint, it is characterized in that, represent with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 14%-16% of 0-1mm, granularity is the bauxite 18%-22% of 1-3mm, granularity is the bauxite 3%-6% of 180 orders, granularity is the schmigel 18%-20% of 180 orders, mullite powder 18%-22%, alumina powder 3%-5%, silicon powder 3%-5%, Secar7117%-19%, explosion-proof fiber 0.1%-0.3%, metallic aluminium powder 0.2%-0.5%, sodium tripolyphosphate 0.1%-0.3% and sodium hexametaphosphate 0.2%-0.5%.
2. blast furnace according to claim 1 makes lining spray paint, it is characterized in that, representing with weight percentage, described blast furnace is made the raw material of lining spray paint and is consisted of: granularity is the bauxite 15% of 0-1mm, granularity to be the bauxite 20% of 1-3mm, granularity the be bauxite 3% of 180 orders, granularity are the schmigel 18% of 180 orders, mullite powder 20%, alumina powder 3%, silicon powder 3%, Secar7117%, explosion-proof fiber 0.2%, metallic aluminium powder 0.3%, sodium tripolyphosphate 0.2% and sodium hexametaphosphate 0.3%.
3. blast furnace according to claim 1 and 2 makes lining spray paint, it is characterised in that Al in described Secar712O3Content be 68%-71%.
4. blast furnace according to claim 1 and 2 makes lining spray paint, it is characterised in that SiO in described silicon powder2Content >=96%.
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106187246A (en) * | 2016-07-25 | 2016-12-07 | 宜兴市中环耐火材料有限公司 | A kind of anti-rotten pottery putty |
CN106699205A (en) * | 2016-12-26 | 2017-05-24 | 中国京冶工程技术有限公司 | Sol-bonded wet-process spray coating for blast furnace lining and preparation method of sol-bonded wet spray coating |
CN107746216A (en) * | 2017-11-06 | 2018-03-02 | 陈兴 | A kind of insulating moulding coating of exhaust opening |
CN109824371A (en) * | 2019-03-28 | 2019-05-31 | 武汉科技大学 | A kind of gasification furnace work lining fire-proof spray coating and preparation method thereof |
CN110563470A (en) * | 2019-08-23 | 2019-12-13 | 河南恒耐尔耐火材料有限公司 | High-strength explosion-proof spray coating and preparation method thereof |
CN113024264A (en) * | 2019-12-09 | 2021-06-25 | 上海梅山钢铁股份有限公司 | Heat-insulating coating for permanent layer of torpedo ladle |
CN114031379A (en) * | 2021-11-05 | 2022-02-11 | 瑞泰科技股份有限公司 | Aluminum-silicon high-temperature spray coating |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106187246A (en) * | 2016-07-25 | 2016-12-07 | 宜兴市中环耐火材料有限公司 | A kind of anti-rotten pottery putty |
CN106699205A (en) * | 2016-12-26 | 2017-05-24 | 中国京冶工程技术有限公司 | Sol-bonded wet-process spray coating for blast furnace lining and preparation method of sol-bonded wet spray coating |
CN106699205B (en) * | 2016-12-26 | 2019-12-20 | 中国京冶工程技术有限公司 | Sol-combined blast furnace lining wet-process spray coating and preparation method thereof |
CN107746216A (en) * | 2017-11-06 | 2018-03-02 | 陈兴 | A kind of insulating moulding coating of exhaust opening |
CN109824371A (en) * | 2019-03-28 | 2019-05-31 | 武汉科技大学 | A kind of gasification furnace work lining fire-proof spray coating and preparation method thereof |
CN110563470A (en) * | 2019-08-23 | 2019-12-13 | 河南恒耐尔耐火材料有限公司 | High-strength explosion-proof spray coating and preparation method thereof |
CN113024264A (en) * | 2019-12-09 | 2021-06-25 | 上海梅山钢铁股份有限公司 | Heat-insulating coating for permanent layer of torpedo ladle |
CN114031379A (en) * | 2021-11-05 | 2022-02-11 | 瑞泰科技股份有限公司 | Aluminum-silicon high-temperature spray coating |
CN114031379B (en) * | 2021-11-05 | 2024-01-30 | 瑞泰科技股份有限公司 | Aluminum-silicon high-temperature spray paint |
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Application publication date: 20160615 |