CN105541352A - Chromium-alumina-carbon bricks and preparation method therefor - Google Patents
Chromium-alumina-carbon bricks and preparation method therefor Download PDFInfo
- Publication number
- CN105541352A CN105541352A CN201510964882.8A CN201510964882A CN105541352A CN 105541352 A CN105541352 A CN 105541352A CN 201510964882 A CN201510964882 A CN 201510964882A CN 105541352 A CN105541352 A CN 105541352A
- Authority
- CN
- China
- Prior art keywords
- chromium
- carrying
- alumina
- granularity
- electric smelting
- 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
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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
- C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
- C04B35/0473—Refractories from grain sized mixtures containing chromium oxide or chrome ore obtained from fused grains
-
- 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
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
- C04B35/651—Thermite type sintering, e.g. combustion sintering
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
-
- 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
- C04B2235/70—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses chromium-alumina-carbon bricks and a preparation method therefor and relates to the chromium-alumina-carbon bricks. The chromium-alumina-carbon bricks are prepared from the following ingredients in percentage by mass: 75-90% of electric-melted high-chromium sand materials, of which the granularity of each is 5-0 mesh and 240 meshes, 3-8% of alpha-Al2O3 micropowder, 0.1-6% of zirconia micropowder, 0.1-3% of metal aluminum powder material, of which the granularity is smaller than 180 meshes, 0.1-3% of graphite powder, 3-8% of chrome oxide green and 2-4% of additional binder. The chromium-alumina-carbon bricks are prepared through the preparing steps of carrying out material proportioning, carrying out fine-powder premixing, carrying out granule pre-wrapping, carrying out mixing, carrying out molding, carrying out drying and carrying out burning. According to the chromium-alumina-carbon bricks and the preparation method therefor, the aims of greatly improving thermal shock resistance and prolonging service lives are achieved.
Description
[technical field]
The present invention relates to a kind of coal water slurry pressurized gasifier chromium aluminum-carbon brick, relate to a kind of chromium aluminum-carbon brick and preparation method thereof.
[background technology]
Known, the Coal Gasification Technology that China adopts at present mostly be efficiency higher, produce gas composition and to pressurize preferably Texaco water co al slurry gasification process and have the multi-nozzle water coal slurry pressurized gasification technology of independent intellectual property right; The vapourizing furnace liner of these two kinds of gasification technologies is chromium aluminium zirconia block, i.e. high-chrome brick.Build consensus in the industry now, the service condition of vapourizing furnace liner high-chrome brick is the very important factor determining whole system performance driving economy and reliability.Along with the development of coal chemical industry, the quantity exponentially situation growth of coal water slurry pressurized gasifier, the vapourizing furnace of high working pressure, large coal feeding amount gets more and more, because changing refractory liner, coal chemical industry enterprises is produced and the impact of social resources loss also by increasing, therefore, objectively need the appearance of the high-chrome brick of more long life, from world wide, extend the greatest requirements having become vapourizing furnace user the work-ing life of refractory materials.
In operational process, especially there is larger temperature fluctuation when start-stop car in coal water slurry pressurized gasifier, therefore the thermal shock resistance of high-chrome brick is the very important factor determining its work-ing life; In addition, in high-chrome brick life cycle, along with the tiny crack formed by defect own in the growth high-chrome brick of duration of service continues expansion, structural strength reduces; Meanwhile, along with the infiltration of grey slag ingredient, high-chrome brick metamorphic layer bulk under the effect of mechanical effect and thermal stresses etc. is peeled off from hot side, eventually by air-flow at a high speed and carry slag erosion secretly and fall.These three kinds of factors make the damage speed of high-chrome brick greatly increase, especially more obvious in the middle and later periods in high-chrome brick life-span.
At present, the effective approach improving high-chrome brick thermal shock performance utilizes zirconic martensitic transformation, and mechanism is divided into: the branch of stress-induced phase transformation toughening mechanisms, microcrack evolution equation, crackle and deflect toughness reinforcing, surface strengthening is toughness reinforcing and yttria stabilizator.In theory, the means improving refractory materials thermal shock performance are varied, as the homogeneity of strongthener, reduce subsurface defect etc., and these means also can lift structure intensity while raising material thermal shock performance; And reduce the void content of refractory materials, effectively can intercept the infiltration of grey slag ingredient, that slows down high-chrome brick peels off damage, but but can reduce the thermal shock performance of high-chrome brick.Therefore, the means reducing high-chrome brick damage speed also exist in theory with the constraint in practice, overcome these constraints, just can make the side towards the fire brick of vapourizing furnace, high-chrome brick, life-span have lifting by a relatively large margin.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention discloses a kind of chromium aluminum-carbon brick and preparation method thereof, achieving thermal shock resistance and significantly promote, the object increased the service life.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
A kind of chromium aluminum-carbon brick, is made up of by mass percent following compositions:
Granularity is respectively 5 ~ 0 and 240 object electric smelting high chromium sand materials: 75 ~ 90%;
α-Al
2o
3micro mist: 3 ~ 8%;
Zirconium white micro mist: 0.1 ~ 6%;
Granularity is less than 180 object metallic aluminium powder materials: 0.1 ~ 3%;
Graphite Powder 99: 0.1 ~ 3%;
Chromoxide green: 3 ~ 8%;
The amount of additional bonding agent: 2 ~ 4%.
Described chromium aluminum-carbon brick, described bonding agent is one or several in the organic or inorganic bonding agents such as dextrin, resin, spent pulping liquor.
A preparation method for chromium aluminum-carbon brick, said method comprising the steps of:
(1) prepare burden: take for subsequent use respectively according to the ratio of above-mentioned each component;
(2) fine powder Preblend: by the 240 order electric smelting high chromium sands, the α-Al that take
2o
3micro mist, zirconium white micro mist, Graphite Powder 99, chromoxide green add in vibrations ball mill machine carries out pre-mixing, and mixing time is 30 ~ 60min;
(3) particle pre-wrapped: the electric smelting high chromium sand premix by granularity being 5-1mm, adds bonding agent and mix, then add metallic aluminium powder and mix, makes metallic aluminium powder be wrapped in the outside of the electric smelting high chromium sand of hybrid junctions mixture;
(4) batch mixing: be that the electric smelting high chromium sand of 1-0mm and the fine powder Preblend of the middle acquisition of step (2) add mixer by granularity, continue to be mixed to evenly;
(5) shaping: the batch mixing of step (4) to be weighed according to the specification of quality of different brick from the particle pre-wrapped material of step (3), joins in mould shaping on friction press or hydropress;
(6), dry: the green compact after shaping are the drying kiln for drying 12 ~ 48 hours of 110 ~ 150 DEG C;
(7), burn till: dried green compact in high temperature kiln under reducing atmosphere 1550 ~ 1700 DEG C burn till 8 ~ 10 hours.
Owing to adopting technique scheme, the present invention has following beneficial effect:
The present invention, by adding metallic aluminium powder, forms the carrying out of liquid phase acceleration of sintering and fills pore, reducing the void content of finished product when reducing atmosphere sinters, in use slow oxidation volumetric expansion hinders the expansion of tiny crack in goods and stops the oxidation of Graphite Powder 99; Add the thermal conductivity that Graphite Powder 99 can improve goods, and then improve the thermal shock resistance of goods; Add zirconium white micro mist, second-phase can be formed in goods, promote the sintering of goods, improve goods final strength; Can be found out by result shown in table 1, the novel chromium aluminum-carbon brick of one of the present invention, not only normal temperature and hot strength are better than existing market product, and thermal shock resistance also has and significantly promotes, and can ensure the work-ing life more grown;
Table 1
[embodiment]
Can explain the present invention in more detail by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
Embodiment 1
A kind of novel chromium aluminum-carbon brick each composition of filling a prescription consists of:
5 ~ 1 electric smelting high chromium sand particles 47 parts
1 ~ 0 electric smelting high chromium sand particle 18 parts
Electric smelting high chromium sand fine powder 18 parts
Alumina powder 8 parts
Metallic aluminium powder 1 part
Zirconium white micro mist: 3 parts
Graphite Powder 99: 1 part
Chrome green 4 parts
Additional bonding agent 2 parts.
A kind of preparation technology's flow process of novel chromium aluminum-carbon brick is:
1, prepare burden: according to recipe requirements, each raw material is weighed up;
2, pre-mixing: added by load weighted matrix fine powder material in vibrations ball mill machine and carry out pre-mixing, mixing time is 30 ~ 60min;
3, particle pre-wrapped: by the particles of aggregates premix of granularity at more than 1mm, then add resin or spent pulping liquor liquid binder, add metallic aluminium powder after mixing, continue to mix;
4, batch mixing: the various raw materials of below 1mm are added mixer, continues to be mixed to evenly;
5, shaping: the batch mixing of step 4 to be weighed according to the specification of quality of different brick from the particle pre-wrapped material of step 3, joins in mould shaping on friction press or hydropress;
6, dry: the green compact after shaping are the drying kiln for drying 48 hours of 150 DEG C;
7, burn till: dried green compact in high temperature kiln under reducing atmosphere 1700 DEG C burn till 10 hours.
Embodiment 2
A kind of novel chromium aluminum-carbon brick each composition of filling a prescription consists of:
5 ~ 1 electric smelting high chromium sand particles 45 parts
1 ~ 0 electric smelting high chromium sand particle 20 parts
Electric smelting high chromium sand fine powder 18 parts
Alumina powder 6 parts
Metallic aluminium powder 1 part
Zirconium white micro mist: 2 parts
Graphite Powder 99: 2 parts
Chrome green 6 parts
Additional bonding agent 2 parts.
Above-mentioned a kind of coal water slurry pressurized gasifier backing sichromal brick preparation technology's flow process with embodiment 1.
Embodiment 3
A kind of novel chromium aluminum-carbon brick each composition of filling a prescription consists of:
5 ~ 1 electric smelting high chromium sand particles 45 parts
1 ~ 0 electric smelting high chromium sand particle 20 parts
Electric smelting high chromium sand fine powder 14 parts
Alumina powder 10 parts
Metallic aluminium powder 0.5 part
Zirconium white micro mist: 3 parts
Graphite Powder 99: 1.5 parts
Chrome green 6 parts
Additional bonding agent 2 parts.
Above-mentioned a kind of coal water slurry pressurized gasifier backing sichromal brick preparation technology's flow process with embodiment 1.
Claims (3)
1. a chromium aluminum-carbon brick, is characterized in that: be made up of by mass percent following compositions:
Granularity is respectively 5 ~ 0 and 240 object electric smelting high chromium sand materials: 75 ~ 90%;
α-Al
2o
3micro mist: 3 ~ 8%;
Zirconium white micro mist: 0.1 ~ 6%;
Granularity is less than 180 object metallic aluminium powder materials: 0.1 ~ 3%;
Graphite Powder 99: 0.1 ~ 3%;
Chromoxide green: 3 ~ 8%;
The amount of additional bonding agent: 2 ~ 4%.
2. chromium aluminum-carbon brick according to claim 1, is characterized in that: described bonding agent is one or several in the organic or inorganic bonding agents such as dextrin, resin, spent pulping liquor.
3. a preparation method for chromium aluminum-carbon brick, is characterized in that: said method comprising the steps of:
(1) prepare burden: take for subsequent use respectively according to the ratio of above-mentioned each component;
(2) fine powder Preblend: by the 240 order electric smelting high chromium sands, the α-Al that take
2o
3micro mist, zirconium white micro mist, Graphite Powder 99, chromoxide green add in vibrations ball mill machine carries out pre-mixing, and mixing time is 30 ~ 60min;
(3) particle pre-wrapped: the electric smelting high chromium sand premix by granularity being 5-1mm, adds bonding agent and mix, then add metallic aluminium powder and mix, makes metallic aluminium powder be wrapped in the outside of the electric smelting high chromium sand of hybrid junctions mixture;
(4) batch mixing: be that the electric smelting high chromium sand of 1-0mm and the fine powder Preblend of the middle acquisition of step (2) add mixer by granularity, continue to be mixed to evenly;
(5) shaping: the batch mixing of step (4) to be weighed according to the specification of quality of different brick from the particle pre-wrapped material of step (3), joins in mould shaping on friction press or hydropress;
(6), dry: the green compact after shaping are the drying kiln for drying 12 ~ 48 hours of 110 ~ 150 DEG C;
(7), burn till: dried green compact in high temperature kiln under reducing atmosphere 1550 ~ 1700 DEG C burn till 8 ~ 10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964882.8A CN105541352B (en) | 2015-12-21 | 2015-12-21 | A kind of chromium Al2O3C Bricks and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964882.8A CN105541352B (en) | 2015-12-21 | 2015-12-21 | A kind of chromium Al2O3C Bricks and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105541352A true CN105541352A (en) | 2016-05-04 |
| CN105541352B CN105541352B (en) | 2018-06-22 |
Family
ID=55820974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964882.8A Active CN105541352B (en) | 2015-12-21 | 2015-12-21 | A kind of chromium Al2O3C Bricks and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105541352B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986656A (en) * | 2017-06-03 | 2017-07-28 | 嘉兴新耐建材有限公司 | A kind of limekiln resistive connection skin abrasion-resistant prefabricated brick |
| CN107010975A (en) * | 2017-06-03 | 2017-08-04 | 嘉兴新耐建材有限公司 | A kind of limekiln resistive connection skin wear-resistant castable |
| CN107141000A (en) * | 2017-06-03 | 2017-09-08 | 嘉兴新耐建材有限公司 | A kind of resistive connection skin wear-resistant castable |
| CN112194473A (en) * | 2020-06-30 | 2021-01-08 | 中国建筑材料科学研究总院有限公司 | Chrome corundum brick with high erosion resistance and thermal shock resistance prepared by secondary mixed grinding and drying and process thereof |
| CN114230351A (en) * | 2021-12-28 | 2022-03-25 | 宜兴瑞泰耐火材料工程有限公司 | Vacuum casting high-chromium brick and preparation process thereof |
| CN116789457A (en) * | 2023-06-25 | 2023-09-22 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing aluminum chrome brick by using waste aluminum chrome catalyst of Catofin process and performing innocent treatment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335282A (en) * | 2001-08-30 | 2002-02-13 | 营口青花耐火材料股份有限公司 | Melt particle-recombined magnesia-chrome brick and its production process |
| CN101591189A (en) * | 2009-03-19 | 2009-12-02 | 宜兴新威利成耐火材料有限公司 | Cr-Zr brick for coal slurry gasifier and preparation method thereof |
| CN102731121A (en) * | 2012-07-12 | 2012-10-17 | 辽宁中镁合金股份有限公司 | High-performance magnesium-aluminum-chromium composite spinel brick and manufacturing method thereof |
| CN102786314A (en) * | 2012-08-23 | 2012-11-21 | 武汉钢铁(集团)公司 | Fused-rebonded magnesite-chrome brick with excellent thermal shock resistance and production process |
-
2015
- 2015-12-21 CN CN201510964882.8A patent/CN105541352B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335282A (en) * | 2001-08-30 | 2002-02-13 | 营口青花耐火材料股份有限公司 | Melt particle-recombined magnesia-chrome brick and its production process |
| CN101591189A (en) * | 2009-03-19 | 2009-12-02 | 宜兴新威利成耐火材料有限公司 | Cr-Zr brick for coal slurry gasifier and preparation method thereof |
| CN102731121A (en) * | 2012-07-12 | 2012-10-17 | 辽宁中镁合金股份有限公司 | High-performance magnesium-aluminum-chromium composite spinel brick and manufacturing method thereof |
| CN102786314A (en) * | 2012-08-23 | 2012-11-21 | 武汉钢铁(集团)公司 | Fused-rebonded magnesite-chrome brick with excellent thermal shock resistance and production process |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986656A (en) * | 2017-06-03 | 2017-07-28 | 嘉兴新耐建材有限公司 | A kind of limekiln resistive connection skin abrasion-resistant prefabricated brick |
| CN107010975A (en) * | 2017-06-03 | 2017-08-04 | 嘉兴新耐建材有限公司 | A kind of limekiln resistive connection skin wear-resistant castable |
| CN107141000A (en) * | 2017-06-03 | 2017-09-08 | 嘉兴新耐建材有限公司 | A kind of resistive connection skin wear-resistant castable |
| CN112194473A (en) * | 2020-06-30 | 2021-01-08 | 中国建筑材料科学研究总院有限公司 | Chrome corundum brick with high erosion resistance and thermal shock resistance prepared by secondary mixed grinding and drying and process thereof |
| CN112194473B (en) * | 2020-06-30 | 2022-05-27 | 中国建筑材料科学研究总院有限公司 | Chrome corundum brick with high erosion resistance and thermal shock resistance prepared by secondary mixed grinding and drying and process thereof |
| CN114230351A (en) * | 2021-12-28 | 2022-03-25 | 宜兴瑞泰耐火材料工程有限公司 | Vacuum casting high-chromium brick and preparation process thereof |
| CN116789457A (en) * | 2023-06-25 | 2023-09-22 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing aluminum chrome brick by using waste aluminum chrome catalyst of Catofin process and performing innocent treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105541352B (en) | 2018-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105541352A (en) | Chromium-alumina-carbon bricks and preparation method therefor | |
| CN107698266B (en) | Hot-blast stove pipeline sealing material and preparation method thereof | |
| CN104355634B (en) | A kind of aluminum oxide electric furnace cover and preparation method thereof | |
| CN106187248B (en) | A kind of MULTILAYER COMPOSITE runner brick and its production method | |
| CN102731121B (en) | High-performance magnesium-aluminum-chromium composite spinel brick and manufacturing method thereof | |
| CN108484138A (en) | A kind of sliding plate brick and preparation method thereof adding composite alumina micro mist and carbon source | |
| CN105645977A (en) | Air brick for special steel refining and preparation method thereof | |
| CN101121609A (en) | Baking-free hot-metal bottle lining brick | |
| CN109879661B (en) | Tundish coating material and preparation method thereof | |
| CN102757251A (en) | Nanometer material contained ladle bottom argon blowing permeable brick and preparation process thereof | |
| CN102329137A (en) | Carbon-free alumina-magnesia unburned brick and preparation method and application thereof | |
| CN103373856B (en) | High-stress-strain low-creepage high-thermal-shock-resistance refractory brick and manufacturing method thereof | |
| CN103864443B (en) | Cement kiln siliceous mullite brick and preparation method thereof | |
| CN101875561A (en) | Nano-SiO2 and nano-CaO composite ceramic bond siliceous refractory castable and preparation method thereof | |
| CN110563449A (en) | Environment-friendly magnesia-carbon gunning mix for RH furnace and preparation method thereof | |
| CN106830955B (en) | Method for preparing unfired modified high-purity magnesium aluminate spinel composite brick by microwave drying | |
| CN110256057A (en) | Exempt to impregnate sliding plate brick and preparation method thereof | |
| CN106966739A (en) | A kind of RH gunning refractories of improvement | |
| CN102584288B (en) | Silica corundum brick | |
| CN102320844B (en) | Aluminum-magnesium-zirconium brick for RH impregnating pipe and circulating pipe and preparation method thereof | |
| CN102898168A (en) | Compound magnesium-aluminum-chrome refractory castable for copper smelting tundish | |
| CN104909774B (en) | Aluminous cement combination properties of alumina-magnesia castables and preparation method thereof | |
| CN101475383B (en) | Kiln alkaline brick for producing vanadium nitrogen alloy and method for producing the same | |
| CN106946550B (en) | A kind of magnesia-spinel brick and preparation method thereof that antistrip performance is excellent | |
| WO2011153932A1 (en) | Structure and heat insulation integrated composite brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210125 Address after: 471322 Baisha Town Industrial Agglomeration Area, Yichuan County, Luoyang City, Henan Province Patentee after: Luoyang Lier Functional Materials Co.,Ltd. Address before: 471023 entrance of Mudan Avenue, zhangheng street, Luolong District, Luoyang City, Henan Province Patentee before: LUOYANG LIER REFRACTORY MATERIAL Co.,Ltd. |