CN1195075C - Combined cooling module and its manufacture method - Google Patents
Combined cooling module and its manufacture method Download PDFInfo
- Publication number
- CN1195075C CN1195075C CNB021392056A CN02139205A CN1195075C CN 1195075 C CN1195075 C CN 1195075C CN B021392056 A CNB021392056 A CN B021392056A CN 02139205 A CN02139205 A CN 02139205A CN 1195075 C CN1195075 C CN 1195075C
- Authority
- CN
- China
- Prior art keywords
- refrigerating module
- cooling water
- main body
- endosome
- water pipe
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The present invention relates to a cooling wall of a blast furnace, particularly to a combined cooling module which comprises the outer box body of the cooling module, the inner body of the cooling module and a U-shaped or snake-shaped circulating cooling water pipe, wherein the outer box body is made of a carbon-containing refractory material, and the inner body is rammed by a carbon-containing or silicon carbide-containing ramming material in the inner cavity of the outer box body of the cooling module. The inner body of the cooling module is sheathed in the inner cavity of the outer box body of the cooling module; the circulating cooling water pipe is inlaid in the inner body of the cooling module or is positioned between the inner body of the cooling module and the bottom surface of the inner cavity of the outer box body of the cooling module; the cooling surface of the cooling module is provided with the protecting sleeve pipe of the cooling water pipe and the installing and connecting piece of the cooling module. The present invention has the advantages of high cooling efficiency, strong resistance to the high-temperature damage of melted iron and chemical corrosion, elimination of the accidental burning-through accident danger of a furnace chamber, full utilization of the refractory brick lining of the furnace hearth, construction investment saving, extension of the service life of a blast furnace and advantage enhancement of the economic benefit of an enterprise, and is suitable for modern blast furnaces with different volume.
Description
(1), technical field: the present invention relates to a kind of blast furnace cooling stave, particularly a kind of built-up type refrigerating module and manufacture method thereof.
(2), background technology: at present, the furnace bottom of blast furnace, cupola well all adopt the cast-iron cooling wall of graphitic cast iron or other material iron casting, the steel circulating cooling water pipe that is cast into when the cast of cast iron high temperature is arranged in the cooling stave.Though, because the life-span of furnace bottom, brick lining is longer, this cooling wall breakage dangerous less is lower to the influence degree of blast furnace campaign.But the cast-iron cooling wall that uses with other position of blast furnace is the same, for preventing that the masking paste that carburizing is adopted from appearring in the steel circulating cooling water pipe when high temperature is cast, between circulating cooling water pipe and cast iron, produce the thermofin of high thermal resistance, reduced the cooling performance of cooling stave; And because the cast iron high temperature destruction that can not resist molten hot metal, in case the blast furnace lining breakage, when molten hot metal touched the cast-iron cooling wall surface, cast-iron cooling wall was melted immediately and causes the catastrophic failure that happens suddenly; Simultaneously, be that a kind of physics contacts fully between the amorphous refractory of in the cast-iron cooling wall slit, filling and the cast iron, molten hot metal is easy to break through this physical sealing and causes hearth breakout.For above-mentioned reasons, for prevent blast furnace produce in burst hearth breakout accident, when brick lining remnants that build by laying bricks or stones outside the cooling stave hot side～300mm, will carry out blast furnace overhaul.Like this, waste the residue bricking that originally can also continue to use, reduced blast furnace campaign, increased enterprise's production cost, influenced economic benefit of enterprises.
(3), summary of the invention: the objective of the invention is, overcome disadvantages of background technology, eliminate the danger of burst hearth breakout accident, make full use of brick lining, and therefore prolong blast furnace campaign, and improve the business economic benefit, develop built-up type refrigerating module and manufacture method thereof.
Technical scheme of the present invention is: a kind of built-up type refrigerating module; contain the outer casket body of refrigerating module; refrigerating module endosome and circulating cooling water pipe; suit is inlayed the refrigerating module endosome that has circulating cooling water pipe in the casket intracoelomic cavity outside refrigerating module; the bonding surface of outer casket body of refrigerating module and refrigerating module endosome is a vertical plane; or be intilted inclined-plane or curved surface; perhaps be provided with section form papillary each other with a determining deviation; or trapezoidal shape; or the coupling vertical plane of rectangular-shaped strip groove or raised line or intilted inclined-plane or curved surface; there is protective casing at the position that circulating cooling water pipe passed or entered refrigerating module endosome huyashi-chuuka (cold chinese-style noodles); refrigerating module endosome huyashi-chuuka (cold chinese-style noodles) is provided with the installation web member; by this web member refrigerating module is fixed on the last furnace shell, circulating cooling water pipe is U-shaped pipe or serpentine tube.
A kind of manufacture method of built-up type refrigerating module; main body material A and the coal-tar pitch wedding agent of forming the outer casket body of refrigerating module are mixed the mould that places the outer casket body of refrigerating module for synthetic material A; go into the kiln high-temperature roasting behind vibration or the ramming process; burn till postcooling; obtain the outer casket body of refrigerating module; mix and be synthetic material B forming the main body material B of refrigerating module endosome and resinoid bond; ramming process is outside refrigerating module in the casket intracoelomic cavity; embedding circulating cooling water pipe and the web member that is welded with protective casing of while; refrigerating module is placed oven dry under the low temperature; this web member is fixed on refrigerating module on the last furnace shell; by weight percentage; contain electric calcined anthracite 60～65% among the main body material A; 100～200 order Graphite Powder 99s 8～12%; 180～300 order carborundum powders 20～25%; 300～500 order metallic silicon powers 5～8%; it is 82～87% that synthetic material A contains main body material A; coal-tar pitch 18～13%; by weight percentage; contain electric calcined anthracite 70～80% among the main body material B; 100～200 order Graphite Powder 99s 5～15%; 300～500 order metallic silicon powers 5～8%; 180～300 order carborundum powders 10～15%; containing main body material B among the synthetic material B is 92～95%; resin 8～5%; the high-temperature roasting temperature is 1300～1450 ℃; the oven drying at low temperature temperature is less than or equal to 600 ℃; when ramming is made the refrigerating module endosome in the casket intracoelomic cavity outside the refrigerating module that high-temperature roasting becomes, be welded with the recirculated cooling water tube outer surface coating carbonaceous pug of protective casing.
A kind of manufacture method of built-up type refrigerating module; main body material A and the coal-tar pitch wedding agent of forming the outer casket body of refrigerating module are mixed the mould that places the outer casket body of refrigerating module for synthetic material A; go into the kiln high-temperature roasting behind vibration or the ramming process; burn till postcooling; obtain the outer casket body of refrigerating module; mix and be synthetic material B forming the main body material B of refrigerating module endosome and resinoid bond; ramming process is outside refrigerating module in the casket intracoelomic cavity; embedding circulating cooling water pipe and the web member that is welded with protective casing of while; refrigerating module is placed oven dry under the low temperature; this web member is fixed on refrigerating module on the last furnace shell; by weight percentage; contain electric calcined anthracite 80～85% among the main body material A; 100～200 order Graphite Powder 99s 8～12%; 300～500 order metallic silicon powers 5～8%; containing main body material A among the synthetic material A is 82～87%; coal-tar pitch 18～13%; by weight percentage; silicon carbide-containing 80～85% among the main body material B; 300～500 order metallic silicon powers 3～7%; 100～200 order Graphite Powder 99s 8～12%; 500～1000 order metallic aluminium powders 2～3%; containing main body material B among the synthetic material B is 92～95%; resin 8～5%; the high-temperature roasting temperature is 1300～1450 ℃; the oven drying at low temperature temperature is less than or equal to 600 ℃; when ramming is made the refrigerating module endosome in the casket intracoelomic cavity outside the refrigerating module that high-temperature roasting becomes, be welded with the recirculated cooling water tube outer surface coating carbonaceous pug of protective casing.
Useful positively effect of the present invention is:
(1) inner bottom surface and the refrigerating module endosome of the outer casket body of refrigerating module made of the circulating cooling water pipe of built-up type refrigerating module and carbon containing refractory closely contact heat transfer efficiency height, good cooling results.
(2) outer casket body opposing molten iron high temperature action of the refrigerating module made of carbon containing refractory and chemical erosion ability are strong, even when directly contacting molten hot metal, also can use the long period, have eliminated the danger of burst catastrophic failure.Like this, can make full use of the firebrick lining of building casket body heat face outside refrigerating module by laying bricks or stones, prolong blast furnace campaign.
(3) proportion of built-up type formula refrigerating module than cast-iron cooling wall little～80%, can reduce weight of equipment and construction investment significantly.
(4) the built-up type refrigerating module can prolong blast furnace campaign, reduces construction investment, improves the business economic benefit.
(4), description of drawings
Fig. 1 is the built-up type cooling module structure synoptic diagram with U-shaped bend cycles water-cooled tube.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the built-up type cooling module structure synoptic diagram with horizontal serpentine bend circulating cooling water pipe.
Fig. 4 is the B-B cross-sectional view of Fig. 3.
Fig. 5 is the built-up type cooling module structure synoptic diagram with vertical serpentine bend circulating cooling water pipe.
Fig. 6 is the C-C cross-sectional view of Fig. 5.
Fig. 7 is the built-up type cooling module structure synoptic diagram with horizontal serpentine bend circulating cooling water pipe.
Fig. 8 is the D-D cross-sectional view of Fig. 7.
(5), embodiment
The present invention is described in more detail below in conjunction with accompanying drawing.
Embodiment one, referring to Fig. 1 and Fig. 2.Among the figure; 1 places the outer casket body of the refrigerating module that burns till behind mould vibration or the ramming process for the synthetic material A after main body material A and coal-tar pitch being mixed evenly; 2 for being embedded in the U-shaped circulating cooling water pipe in the refrigerating module endosome 4; 3 is that U-shaped circulating cooling water pipe 2 is at the protective casing that passes or enter refrigerating module endosome 4 positions; the 4 refrigerating module endosomes of outside refrigerating module, smashing in the casket intracoelomic cavity for the synthetic material B after main body material B and resin being mixed evenly; 5 are the trapezoidal concavo-convex cross section shape matching structure on the bonding surface that is distributed in outer casket body 1 of refrigerating module and refrigerating module endosome 4 with a determining deviation; 6 for being arranged at the web member of refrigerating module huyashi-chuuka (cold chinese-style noodles), and 7 is last furnace shell.
At first, the outer casket phosphor bodies material A of refrigerating module that contains electric calcined anthracite 60%, 100～200 order Graphite Powder 99s 10%, 180～300 order carborundum powders 22%, 300～500 order metallic silicon powers 8% by weight percentage or contain electric calcined anthracite 82%, 100～200 order Graphite Powder 99s 12%, 300～500 order metallic silicon powers 6% is mixed, and with cold melt after coal-tar pitch by the outer casket phosphor bodies material A of refrigerating module be 84%, the weight percent of coal-tar pitch 16% is mixed is the outer casket body synthetic material A of refrigerating module.
Then, it is the base substrate with shape shown that the outer casket body synthetic material A of refrigerating module is placed mould vibration or ramming process, after in stoving oven, in 1300～1450 ℃ reducing atmosphere, burning till, and cooling.
Simultaneously, to contain electric calcined anthracite 75%, 100～200 order Graphite Powder 99s 8%, 300～500 order metallic silicon powers 6%, 180～300 order carborundum powders 11% by weight percentage or contain that phosphor bodies material B mixes in the refrigerating module of silicon carbide 82%, 300～500 order metallic silicon powers 6%, 100～200 order Graphite Powder 99s 10%, 500～1000 order metallic aluminium powders 2%, and with resin by phosphor bodies material B in the refrigerating module be 92%, the weight percent of resin 8% is mixed and is refrigerating module endosome synthetic material B.
Then, outside refrigerating module in the casket intracoelomic cavity, embedding circulating cooling water pipe and the web member that is welded with protective casing simultaneously is when embedding circulating cooling water pipe, at the outside surface coating carbon element pug of circulating cooling water pipe with refrigerating module endosome compound B ramming process.
At last, refrigerating module is placed under the low temperature oven dry, bake out temperature≤600 ℃.
Embodiment two, referring to Fig. 3 and Fig. 4.Among the figure, number identically, represent same meaning, do not repeat with embodiment one.Difference is: in the present embodiment, 2 for being embedded in the circulating cooling water pipe of the horizontal serpentine bend in the refrigerating module endosome 4, and 5 are the concavo-convex cross section of the rectangle shape matching structure on the bonding surface that is distributed in outer casket body 1 of refrigerating module and refrigerating module endosome 4 with a determining deviation.
At first, the outer casket phosphor bodies material A of refrigerating module that contains electric calcined anthracite 65%, 180 order Graphite Powder 99s 10%, 300 order carborundum powders 20%, 300 order metallic silicon powers 5% by weight percentage or contain electric calcined anthracite 84%, 180 order Graphite Powder 99s 8%, 500 order metallic silicon powers 8% is mixed, and with cold melt after coal-tar pitch by the outer casket phosphor bodies material A of refrigerating module be 85%, the weight percent of coal-tar pitch 15% is mixed is the outer casket body synthetic material A of refrigerating module.
Then, it is the base substrate with shape shown that the outer casket body synthetic material A of refrigerating module is placed mould vibration or ramming process, after in stoving oven, in 1300～1450 ℃ reducing atmosphere, burning till, and cooling.
Simultaneously, to contain electric calcined anthracite 70%, 180 order Graphite Powder 99s 13%, 500 order metallic silicon powers 6%, 180 order carborundum powders 11% by weight percentage or contain that phosphor bodies material B mixes in the refrigerating module of silicon carbide 80%, 300 order metallic silicon powers 7%, 180 order Graphite Powder 99s 11%, 1000 order metallic aluminium powders 2%, and with resin by phosphor bodies material B in the refrigerating module be 93%, the weight percent of resin 7% is mixed and is refrigerating module endosome synthetic material B.
Then, outside refrigerating module in the casket intracoelomic cavity, embedding circulating cooling water pipe and the web member that is welded with protective casing simultaneously is when embedding circulating cooling water pipe, at the outside surface coating carbon element pug of circulating cooling water pipe with refrigerating module endosome synthetic material B ramming.
At last, refrigerating module is placed under the low temperature oven dry, bake out temperature≤600 ℃.
Embodiment three, referring to Fig. 5 and Fig. 6.Among the figure, number identically, represent same meaning, do not repeat with embodiment one.Difference is: in the present embodiment, 2 for being embedded in the vertical serpentine bend circulating cooling water pipe in the refrigerating module endosome 4.
At first, the outer casket phosphor bodies material A of refrigerating module that contains electric calcined anthracite 63%, 100 order Graphite Powder 99s 12%, 180 order carborundum powders 22%, 300 order metallic silicon powers 3% by weight percentage or contain electric calcined anthracite 85%, 180 order Graphite Powder 99s 10%, 300 order metallic silicon powers 5% is mixed, and with cold melt after coal-tar pitch by the outer casket phosphor bodies material A of refrigerating module be 82%, the weight percent of coal-tar pitch 18% is mixed is the outer casket body synthetic material A of refrigerating module.
Then, it is the base substrate with shape shown that the outer casket body synthetic material A of refrigerating module is placed mould vibration or ramming process, after in stoving oven, in 1300～1450 ℃ reducing atmosphere, burning till, and cooling.
Simultaneously, to contain electric calcined anthracite 78%, 100 order Graphite Powder 99s 7%, 300 order metallic silicon powers 5%, 180 order carborundum powders 10% by weight percentage or contain that phosphor bodies material B mixes in the refrigerating module of silicon carbide 83%, 300 order metallic silicon powers 7%, 100 order Graphite Powder 99s 8%, 500 order metallic aluminium powders 2%, and with resin by phosphor bodies material B in the refrigerating module be 92%, the weight percent of resin 8% is mixed and is refrigerating module endosome synthetic material B.
Then, outside refrigerating module in the casket intracoelomic cavity, embedding circulating cooling water pipe and the web member that is welded with protective casing simultaneously is when embedding circulating cooling water pipe, at the surface applied carbon element pug of circulating cooling water pipe with refrigerating module endosome synthetic material B ramming.
At last, refrigerating module is placed under the low temperature oven dry, bake out temperature≤600 ℃.
Embodiment four, referring to Fig. 7 and Fig. 8.Among the figure, number identically, represent same meaning, do not repeat with embodiment one.Difference is: in the present embodiment, 2 for being embedded in the circulating cooling water pipe of the horizontal serpentine bend in the refrigerating module endosome 4,5 matching structures for the concavo-convex cross section of the mastoid process shape shape on the bonding surface that is distributed in outer casket body 1 of refrigerating module and refrigerating module endosome 4 with a determining deviation.
At first, the outer casket phosphor bodies material A of refrigerating module that contains electric calcined anthracite 60%, 100 order Graphite Powder 99s 8%, 180 order carborundum powders 25%, 300 order metallic silicon powers 7% by weight percentage or contain electric calcined anthracite 80%, 100 order Graphite Powder 99s 15%, 300 order metallic silicon powers 5% is mixed, and with cold melt after coal-tar pitch by the outer casket phosphor bodies material A of refrigerating module be 87%, the weight percent of coal-tar pitch 13% is mixed is the outer casket body synthetic material A of refrigerating module.
Then, it is the base substrate with shape shown that the outer casket body synthetic material A of refrigerating module is placed mould vibration or ramming process, after in stoving oven, in 1300～1450 ℃ reducing atmosphere, burning till, and cooling.
Simultaneously, to contain electric calcined anthracite 80%, 100 order Graphite Powder 99s 5%, 300 order metallic silicon powers 5%, 180 order carborundum powders 10% by weight percentage or contain that phosphor bodies material B mixes in the refrigerating module of silicon carbide 80%, 300 order metallic silicon powers 5%, 100 order Graphite Powder 99s 12%, 500 order metallic aluminium powders 3%, and with resin by phosphor bodies material B in the refrigerating module be 95%, the weight percent of resin 5% is mixed and is refrigerating module endosome synthetic material B.
Then, outside refrigerating module in the casket intracoelomic cavity, embedding circulating cooling water pipe and the web member that is welded with protective casing simultaneously is when embedding circulating cooling water pipe, at the surface applied carbon element pug of circulating cooling water pipe with refrigerating module endosome synthetic material B ramming.
At last, refrigerating module is placed under the low temperature oven dry, bake out temperature≤600 ℃.
Claims (6)
1. built-up type refrigerating module; contain the outer casket body of refrigerating module; refrigerating module endosome and circulating cooling water pipe; suit is inlayed the refrigerating module endosome that has circulating cooling water pipe in the casket intracoelomic cavity outside refrigerating module; it is characterized in that: the bonding surface of outer casket body of refrigerating module and refrigerating module endosome is a vertical plane; or be intilted inclined-plane or curved surface; perhaps be provided with section form papillary each other with a determining deviation; or trapezoidal shape; or the coupling vertical plane of rectangular-shaped strip groove or raised line or intilted inclined-plane or curved surface; there is protective casing at the position that circulating cooling water pipe passed or entered refrigerating module endosome huyashi-chuuka (cold chinese-style noodles); refrigerating module endosome huyashi-chuuka (cold chinese-style noodles) is provided with the installation web member, by this web member refrigerating module is fixed on the last furnace shell.
2. built-up type refrigerating module according to claim 1 is characterized in that: circulating cooling water pipe is U-shaped pipe or serpentine tube.
3. the manufacture method of a built-up type refrigerating module as claimed in claim 1; main body material A and the coal-tar pitch wedding agent of forming the outer casket body of refrigerating module are mixed the mould that places the outer casket body of refrigerating module for synthetic material A; go into the kiln high-temperature roasting behind vibration or the ramming process; burn till postcooling; obtain the outer casket body of refrigerating module; mix and be synthetic material B forming the main body material B of refrigerating module endosome and resinoid bond; ramming process is outside refrigerating module in the casket intracoelomic cavity; embedding circulating cooling water pipe and the web member that is welded with protective casing of while; refrigerating module is placed oven dry under the low temperature; this web member is fixed on refrigerating module on the last furnace shell; it is characterized in that: by weight percentage; contain electric calcined anthracite 60～65% among the main body material A; 100～200 order Graphite Powder 99s 8～12%; 180～300 order carborundum powders 20～25%; 300～500 order metallic silicon powers 5～8%; it is 82～87% that synthetic material A contains main body material A; coal-tar pitch 18～13%; by weight percentage; contain electric calcined anthracite 70～80% among the main body material B; 100～200 order Graphite Powder 99s 5～15%; 300～500 order metallic silicon powers 5～8%; 180～300 order carborundum powders 10～15%; containing main body material B among the synthetic material B is 92～95%; resin 8～5%; the high-temperature roasting temperature is 1300～1450 ℃, and the oven drying at low temperature temperature is less than or equal to 600 ℃.
4. manufacture method according to claim 3 is characterized in that: when ramming is made the refrigerating module endosome in the casket intracoelomic cavity outside the refrigerating module that high-temperature roasting becomes, be welded with the recirculated cooling water tube outer surface coating carbonaceous pug of protective casing.
5. the manufacture method of a built-up type refrigerating module as claimed in claim 1; main body material A and the coal-tar pitch wedding agent of forming the outer casket body of refrigerating module are mixed the mould that places the outer casket body of refrigerating module for synthetic material A; go into the kiln high-temperature roasting behind vibration or the ramming process; burn till postcooling; obtain the outer casket body of refrigerating module; mix and be synthetic material B forming the main body material B of refrigerating module endosome and resinoid bond; ramming process is outside refrigerating module in the casket intracoelomic cavity; embedding circulating cooling water pipe and the web member that is welded with protective casing of while; refrigerating module is placed oven dry under the low temperature; this web member is fixed on refrigerating module on the last furnace shell; it is characterized in that: by weight percentage; contain electric calcined anthracite 80～85% among the main body material A; 100～200 order Graphite Powder 99s 8～12%; 300～500 order metallic silicon powers 5～8%; containing main body material A among the synthetic material A is 82～87%; coal-tar pitch 18～13%; by weight percentage; silicon carbide-containing 80～85% among the main body material B; 300～500 order metallic silicon powers 3～7%; 100～200 order Graphite Powder 99s 8～12%; 500～1000 order metallic aluminium powders 2～3%; containing main body material B among the synthetic material B is 92～95%; resin 8～5%; the high-temperature roasting temperature is 1300～1450 ℃, and the oven drying at low temperature temperature is less than or equal to 600 ℃.
6. manufacture method according to claim 5 is characterized in that: when ramming is made the refrigerating module endosome in the casket intracoelomic cavity outside the refrigerating module that high-temperature roasting becomes, be welded with the recirculated cooling water tube outer surface coating carbonaceous pug of protective casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021392056A CN1195075C (en) | 2002-10-25 | 2002-10-25 | Combined cooling module and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021392056A CN1195075C (en) | 2002-10-25 | 2002-10-25 | Combined cooling module and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405329A CN1405329A (en) | 2003-03-26 |
| CN1195075C true CN1195075C (en) | 2005-03-30 |
Family
ID=4749955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021392056A Expired - Fee Related CN1195075C (en) | 2002-10-25 | 2002-10-25 | Combined cooling module and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1195075C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102414329B (en) * | 2009-05-06 | 2014-10-08 | 卢瓦塔埃斯波公司 | Method for producing a cooling element for pyrometallurgical reactor and the cooling element |
| CN102107271B (en) * | 2010-12-31 | 2013-01-16 | 烟台万隆真空冶金有限公司 | Endogenous-steam cooling casting method for castings |
| CN102719583A (en) * | 2012-07-03 | 2012-10-10 | 鞍钢集团工程技术有限公司 | Method for prolonging service life of furnace hearth and furnace bottom of blast furnace |
-
2002
- 2002-10-25 CN CNB021392056A patent/CN1195075C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1405329A (en) | 2003-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2853801Y (en) | Basque structure of melting-reduction furnace for chromium iron smelting | |
| CN101618969A (en) | Method for preparing compound lining material of blast furnace | |
| CN1195075C (en) | Combined cooling module and its manufacture method | |
| CN114315391B (en) | Expandable magnesium-carbon fire clay and preparation method and application thereof | |
| CN101796362B (en) | Tuyere structure of smelting furnace | |
| CN110256056B (en) | Titanium-containing furnace protection ramming mass for overall restoration of blast furnace hearth and use method | |
| CN1769239A (en) | Carbon brick for ironmaking blast furnace lining and preparation method thereof | |
| CN209740966U (en) | Hot-melting slag mineral wool electric furnace with condensing furnace lining | |
| CN101033144B (en) | A kind of composite mortar used for masonry graphite brick and silicon carbide brick in blast furnace body | |
| CN1195074C (en) | Non-metal cooling wall and mfg. method thereof | |
| CN2573504Y (en) | Blast furnace cooling wall with circulating cooling water pipe therein | |
| CN103620332B (en) | The protecting wall structure of molten metal container and the furnace wall construction method of molten metal container | |
| CN1197827C (en) | Burnt aluminum-carbon brick for torpedo hot metal mixer car and mfg. method thereof | |
| CN114688878A (en) | High-temperature-zone lining, graphitizing furnace lining and graphitizing furnace | |
| GB1585155A (en) | Arc-furnace lining | |
| CN222499197U (en) | Blast furnace cooling wall with dovetail grooves and blast furnace | |
| CN110906740A (en) | A kind of nickel-iron electric furnace with magnesium-carbon composite lining | |
| KR102372663B1 (en) | Refractory structure of melting furnace and melting furnace having the same | |
| CN109722549B (en) | Method for prolonging service life of power frequency induction furnace for regenerating brass | |
| CN115852074B (en) | Online grouting process for cold and hot surfaces of blast furnace | |
| CN203396241U (en) | Graphite composite material ramming furnace lining for ferroalloy furnace | |
| CN201945181U (en) | High-conductivity graphite block furnace bottom for submerged arc furnace | |
| CN222123952U (en) | Integrated furnace lining smelting device | |
| CN2665542Y (en) | Integral hearth lining capable of releasing thermal stress | |
| CN216864292U (en) | Composite furnace lining structure of pre-vacuumized high-temperature carburizing multipurpose furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |