CN103789492A - Change method of externally-installed and bottom-blown air brick of steel ladle - Google Patents
Change method of externally-installed and bottom-blown air brick of steel ladle Download PDFInfo
- Publication number
- CN103789492A CN103789492A CN201410046308.XA CN201410046308A CN103789492A CN 103789492 A CN103789492 A CN 103789492A CN 201410046308 A CN201410046308 A CN 201410046308A CN 103789492 A CN103789492 A CN 103789492A
- Authority
- CN
- China
- Prior art keywords
- brick
- gas permeable
- permeable brick
- cup
- hold
- 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
Images
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to a change method of an externally-installed and bottom-blown air brick of a steel ladle. The method mainly comprises the steps of (1) installing a brick cup by a centering positioning mould, namely positioning a brick cup installing position by the centering positioning mould to guarantee the coaxiality between the brick cup and a hold-down mechanism, so that the coaxiality between the air brick and a base plate of the hold-down mechanism can be guaranteed; (2) installing the air brick, namely smearing fire clay onto the air brick, inserting an installing tool into an air inlet steel pipe of the air brick, and horizontally inserting into holes of the brick cup, so that the coaxiality between the brick cup and the air brick can be guaranteed; and (3) withdrawing the air brick, namely charging low-temperature compressed air, and withdrawing the air brick by a hollow piston hydraulic oil cylinder. After the method is used, the air brick can be exactly positioned and installed by a special tool, the air brick can be exactly aligned, and the air brick can be quickly withdrawn from the outer side of the steel ladle, so that the long-term hard work of workers under high-temperature environment can be avoided, the work safety factor can be improved, and the work efficiency can be improved.
Description
Technical field
The present invention relates to the replacing method of the exterior bottom-blown air brick of a kind of ladle.
Background technology
In steelmaking process, be used for storing the ladle of molten steel, be used as more and more refined molten steel container, for example, in the refining processs such as vacuum argon blowing stove (VD), vacuum argon oxygen stove (VOD), vacuum refinement (RH), ladle furnace (LF), all need to be blown into rare gas element argon gas from ladle bottom.Being blown into argon gas is generally all blown in molten steel by being arranged on the gas permeable brick of ladle bottom, gas permeable brick is shaped as taper type, its screwed steel pipe in bottom inserts breathable refractory materials, refractory materials coated outside one deck stainless steel sheet, the effect of steel pipe bottom thread is to connect outside to be blown into gas piping, surface stainless steel plate is in order to guarantee gas permeable brick physical dimension precision, gas permeable brick and the brick cup hole of location gas permeable brick are closely cooperated, while installation between gas permeable brick and the brick cup contact surface of location gas permeable brick, smear colloidality chamotte and make it firm.Brick cup profile is rectangular parallelepiped, and center is the taper type cavity matching with gas permeable brick, and brick cup act as location gas permeable brick, and forms ladle bottom high-temperature resistant inner lining with other rectangular parallelepiped refractory brick.
Gas permeable brick has two kinds of built in type and fitted outsides, and built in type gas permeable brick is arranged in brick cup, and the ladle box hat place of corresponding steel pipe position opens the aperture that a steel pipe passes through, and steel tube screw thread stretches out ladle outside and connects work with argon gas source pipeline.The life-span of ladle integral refractory lining is far longer than the life-span of gas permeable brick, generally be the 4-5 of gas permeable brick doubly, like this in a ladle furnace labour, need to change gas permeable brick 3-4 time, when replacing, need ladle cooling, change gas permeable brick and brick cup, then baking could normally be used, had a strong impact on like this ladle overall refractory lining work-ing life, increased energy consumption, reduce ladle service efficiency, be forced to increase the total quantity of ladle, increased undoubtedly operation cost.Fitted outside bottom-blown air brick has solved the problems referred to above preferably, open a hole slightly larger than gas permeable brick diameter in ladle shell gas permeable brick position, by a hold-down mechanism location fixed ventilation brick, after gas permeable brick finishes work-ing life, open hold-down mechanism, take out old gas permeable brick, after new gas permeable brick is installed, again compresses and can continue to use.
The mounting means of exterior bottom-blown air brick also has problems, mainly that gas permeable brick takes out comparatively difficulty, all generally that ladle is lain in to ground, utilize its taper type profile, with clash into gas permeable brick centering inside ladle compared with long pole, make the cracked disengaging brick cup of colloidality chamotte between gas permeable brick and brick cup, drop in ladle outside.Because ladle is darker, ladle temperature is higher again, so rod member must have higher high temperature strength and rigidity, weight is larger, needs many people's operations; Simultaneously centering difficulty, also needs long-time centering to attempt impacting, and often occurs breaking brick cup around of gas permeable brick or the situation of other refractory linings.Also there is the hydraulic impact device of use centering gas permeable brick to clash into removing method, due to impact bar limitation of length, hydraulic efficiency installation enters in the ladle of high temperature, as easy as rolling off a log sealing piece for pipe fittings, the damage equipment of burning out, the taking-up difficulty of gas permeable brick, become the development of the exterior bottom-blown air brick of restriction bottleneck.During simultaneously due to installation brick cup, gas permeable brick, be difficult to accurate centering, exist chamotte to smear irregular, impact under immersion at molten steel, increase the hidden danger that gas permeable brick comes off.
Summary of the invention
In order to overcome above-mentioned deficiency, the present invention aims to provide the replacing method of the exterior bottom-blown air brick of a kind of ladle, by using centering orientation tool accurate location and installation in the time that gas permeable brick is installed, using special-purpose taking to go out instrument accurately aligns, extract gas permeable brick from ladle outside fast, avoid several workmans to toil on for a long time in hot environment, improved operating safety factor, improved working efficiency.
The replacing method of the exterior bottom-blown air brick of a kind of ladle provided by the invention, is characterized in that: comprise the following steps:
(1) adopt centering locate moulds that brick cup is installed: brick cup installation site, centering locate moulds location, guarantees brick cup and hold-down mechanism right alignment, thereby guarantee gas permeable brick and hold-down mechanism substrate right alignment;
Adopt centering locate moulds, using hold-down mechanism substrate as benchmark, by coordinating of centering locate moulds shape and hold-down mechanism substrate, brick cup profile, accurately locate the position of brick cup; While making gas permeable brick be installed in brick cup, the relative hold-down mechanism substrate in position is fixed, and makes gas permeable brick plummet vertical with plane;
(2) gas permeable brick is installed:
Ladle is kept flat, gas permeable brick is smeared after chamotte, setting tool is inserted to gas permeable brick air inlet steel pipe, setting tool comprises frustum and steel pipe, the T-shaped setting of frustum and steel pipe, frustum is near gas permeable brick bottom surface, and level is inserted brick cup hole, the frustum conical surface closely cooperates mutually with brick cup hole lower taper, has guaranteed the right alignment of brick cup and gas permeable brick.
(3) take out gas permeable brick:
1. be first blown into the pressurized air of relative low temperature, the relative brick cup cooling of gas permeable brick that will dismantle is shunk, concrete operation method is: connect compressed air line, be blown into 1-5 minute pressurized air in gas permeable brick, pressure position 3-6bar pressurized air enters gas permeable brick by steel pipe, evenly enters ladle by gas permeable brick; The relative brick cup cooling of gas permeable brick that will dismantle is shunk;
2. use hollow piston hydraulic ram, take hold-down mechanism substrate as basis, use cylinder piston rod to be inserted in gas permeable brick bottom steel pipe, upper cover is positioned over hold-down mechanism pedestal, and internal thread disk is screwed on gas permeable brick bottom steel gas thread, and disk is near contact cylinder piston rod, use hydraulic oil pump to pass into pressure oil to oil cylinder, piston rod promotes internal thread disk under pressure, and internal thread disk pulls gas permeable brick by screw thread pair, thereby gas permeable brick is extracted from brick cup.
Further, the upper end of described centering locate moulds is taper type, and size matches with brick cup hole lower taper, and mould stage casing is identical with hold-down mechanism substrate thread root diameter, the upper surface annulus part of bottom cylinder and hold-down mechanism baseplate-laminating.
Further, described setting tool is divided into two portions, the frustum with an aperture centered by front end, and rear end is steel pipe, and frustum matches with brick cup hole lower taper, and centre hole is identical with setting tool pipe diameter, is greater than gas permeable brick air inlet steel pipe.
Further, described hydraulic ram comprises cylinder barrel, and the internal thread disk coordinating with gas permeable brick air inlet steel tube screw thread, in the middle of its cylinder barrel, is steel pipe, and cylinder barrel is up and down respectively into and out of hydraulic fluid port; Oil cylinder upper and lower covers shape and structure is identical, requires surfacing bright and clean, and upper and lower covers centre hole coordinates with oil cylinder piston by sealing-ring, and its piston rod is also that a slightly larger in diameter is in the steel pipe of gas permeable brick bottom; Disk internal thread coordinates with gas permeable brick bottom steel gas thread.
The exterior bottom blowing principle of work of ladle: bottom blowing brick cup is arranged in the middle of ladle refractory lining, gas permeable brick is arranged in brick cup by chamotte, and hold-down mechanism substrate is weldingly fixed on ladle outer casing bottom central position, and substrate is a hollow circular ring dish, inner ring is internal thread, coordinates with spiral hold-down mechanism.Substrate downside requires through machining surface processing, and as a reference plane, for locating miscellaneous equipment, spiral hold-down mechanism is used for compressing location bottom blowing brick.Adjust packing ring for adjusting the distance between spiral hold-down mechanism and gas permeable brick.External argon gas pipeline is connected with gas permeable brick by gas source pipe pipeline connector and air inlet steel pipe.External rare gas element stirs molten steel wherein as argon gas is blown into ladle by pipeline, gas permeable brick.
Of the present invention
beneficial effect:
(1) innovative design of the present invention brick cup centering locate moulds, setting tool, cooling gas permeable brick method, special-purpose taking go out hydraulic ram, make gas permeable brick installation, take out more convenient, quick;
(2) use special tool accurate location and installation in the time that gas permeable brick is installed, accurately align, and can extract gas permeable brick from ladle outside fast, avoided several workmans to toil on for a long time in hot environment, improved operating safety factor, improved working efficiency.
Accompanying drawing explanation
Fig. 1 is ladle bottom blowing fundamental diagram.
Fig. 2 is brick cup localization method schematic diagram.
Fig. 3 is exterior bottom-blown air brick method schematic diagram.
Fig. 4 is gas permeable brick removing method schematic diagram.
In figure, 1 is ladle housing, and 2 is brick cup, and 3 is gas permeable brick stainless steel sheet| and chamotte, and 4 is gas permeable brick, 5 is ladle refractory lining, and 6 is gas permeable brick air inlet steel pipe, and 7 is argon gas pipeline, 8 for adjusting packing ring, and 9 is spiral hold-down mechanism, and 10 is hold-down mechanism substrate, 11 is centering locate moulds, and 12 is setting tool frustum, and 13 is setting tool steel pipe, 14 is oil cylinder upper cover, and 15 is oil cylinder lower cover, and 18 is oil-in, 19 is oil outlet, and 16 is cylinder piston rod, and 17 is internal thread disk.
Embodiment
Further illustrate the present invention below by embodiment, but be not limited to following examples.
Embodiment 1:
1, the exterior bottom blowing principle of work of ladle
Fig. 1 is the exterior bottom blowing principle of work of ladle schematic diagram, and bottom blowing brick cup 2 is arranged in the middle of ladle refractory lining 5, and gas permeable brick 4 is arranged in brick cup by chamotte, adjusts packing ring 8 for adjusting the distance between spiral hold-down mechanism 9 and gas permeable brick 4.Spiral hold-down mechanism 9 is for compressing location bottom blowing brick.Hold-down mechanism substrate 10 is weldingly fixed on ladle shell 1, and hold-down mechanism substrate 10 is a hollow circular ring dish, and inner ring is internal thread, coordinates with spiral hold-down mechanism 9.Hold-down mechanism substrate 10 downsides require through machining surface processing, as a reference plane, for locating miscellaneous equipment.External argon gas pipeline 7, is connected with gas permeable brick 4 by gas permeable brick air inlet steel pipe 6.External rare gas element stirs molten steel wherein as argon gas is blown into ladle by pipeline, gas permeable brick.
2, brick cup localization method explanation
Fig. 2 is brick cup localization method schematic diagram, 11 is centering locate moulds, and this mould upper end is taper type, and size matches with brick cup hole lower taper, stage casing is identical with hold-down mechanism base thread internal diameter, the upper surface annulus part of bottom cylinder and hold-down mechanism baseplate-laminating.When brick cup is installed, centering locate moulds 11 and the 10 reference plane laminatings of hold-down mechanism substrate, insert gas permeable brick hole, brick cup 2 is packed into from ladle inner side, brick cup centering locate moulds 11 is inserted in brick cup hole, the right alignment that has so just guaranteed brick cup 2 and hold-down mechanism, has also just guaranteed the right alignment of bottom-blown air brick 4 with brick cup 2, with hold-down mechanism substrate 10 reference plane common guarantee the parallelism of gas permeable brick 4 downward force direction and gas permeable brick while extracting.Behind location, build periphery refractory lining by laying bricks or stones, assurance brick cup position is fixed.
When brick cup is installed, centering locate moulds 11 is inserted in brick cup hole, and frustum and brick cup hole engagement height are 100mm.
3, gas permeable brick installation method
Fig. 3 is gas permeable brick setting tool using method schematic diagram, setting tool is divided into two portions, setting tool frustum 12 with an aperture centered by front end, rear end is setting tool steel pipe 13, setting tool frustum 12 matches with brick cup hole lower taper, centre hole is identical with setting tool steel pipe 13 internal diameters, is slightly larger than gas permeable brick air inlet steel pipe 6.When gas permeable brick is installed, all generally that ladle keeps flat, gas permeable brick is smeared after chamotte, setting tool is inserted to gas permeable brick air inlet steel pipe 6 as shown in the figure, and frustum is near gas permeable brick bottom surface, and level is inserted brick cup hole, the frustum conical surface closely cooperates mutually with brick cup hole lower taper, guarantee like this right alignment of brick cup and gas permeable brick, made the unlikely extruding of chamotte irregular, be difficult to come off.External argon gas pipeline 7 is connected with gas permeable brick 4 and is blown into ladle rare gas element argon gas by gas permeable brick air inlet steel pipe 6.
4. gas permeable brick removing method
Take out in the time that ladle rolls off the production line replacing gas permeable brick with reference to figure 1 gas permeable brick, after the inner evacuation molten steel of ladle, ladle refractory lining 5 is red heat state with brick cup 2, gas permeable brick 4, and access pressurized air is blown into gas permeable brick.Connect compressed air line, be blown into 1-5 minute pressurized air in gas permeable brick, pressure is that 3 ~ 6bar pressurized air enters gas permeable brick by steel pipe, evenly enter ladle by gas permeable brick, drain by ladle cavity, pressurized air is taken away part heat in gas permeable brick, the brick cup temperature of its periphery reduces relatively, due to the relative cooling shrinkage of gas permeable brick, the fragility chamotte meeting partial rupture in brick cup and gas permeable brick gap, even produce gap, the resistance that takes out like this gas permeable brick can greatly reduce, and sometimes even directly comes off.
Fig. 4 is that air brick of steel ladle takes out principle of work schematic diagram, after pressure-air cooling, close source of the gas, pull down gas source connector, take out spiral hold-down mechanism and pad, design and produce special tool and take out gas permeable brick, special tool comprises a kind of specially designed oil cylinder, and an internal thread disk coordinating with gas permeable brick bottom steel gas thread.Oil cylinder principle of design, for as shown in the figure, is steel pipe in the middle of its cylinder barrel, and cylinder barrel has oil-in 18, oil outlet 19 up and down; Oil cylinder upper cover 14 is identical with lower cover 15 shape and structures, requires surfacing bright and clean, and upper and lower covers centre hole coordinates with oil cylinder piston by sealing-ring, and cylinder piston rod 16 internal diameters are greater than gas permeable brick bottom steel pipe 1mm.Thickness is that the internal thread disk internal thread gas permeable brick bottom steel gas thread of 30mm coordinates, and external diameter is close with special-purpose hydraulic cylinder piston rod external diameter.When use, remove and open and close hold-down mechanism, cylinder piston rod is inserted in gas permeable brick air inlet steel pipe 6, upper cover 14 contacts with hold-down mechanism substrate 10, internal thread disk 17 is screwed on gas permeable brick air inlet steel pipe 6 screw threads, disk is near contact cylinder piston rod 16, oil cylinder oil inlet mouth 18 connects extraneous, connect hydraulic oil pump, oil cylinder oil outlet 19 connects external fuel tank, use hydraulic hand-pump to pass into 5MPa pressure oil to cylinder upper cavity oil, cylinder piston rod 16 promotes internal thread disk 17 under pressure, internal thread disk 17 pulls gas permeable brick by screw thread pair, thereby gas permeable brick is extracted from brick cup.
Claims (5)
1. a replacing method for the exterior bottom-blown air brick of ladle, is characterized in that: comprise the following steps:
(1) adopt centering locate moulds that brick cup is installed: brick cup installation site, centering locate moulds location, guarantees brick cup and hold-down mechanism right alignment, thereby guarantee gas permeable brick and hold-down mechanism substrate right alignment;
(2) gas permeable brick is installed: gas permeable brick is smeared after chamotte, setting tool is inserted to gas permeable brick air inlet steel pipe, level is inserted brick cup hole, guarantees brick cup and gas permeable brick right alignment;
(3) take out gas permeable brick: be 1. first blown into the pressurized air of relative low temperature, the relative brick cup cooling of gas permeable brick that dismantle is shunk; 2. use hollow piston hydraulic ram, take hold-down mechanism substrate as basis, piston rod takes out gas permeable brick with the disk that promotion gas permeable brick steel tube screw thread coordinates.
2. the replacing method of the exterior bottom-blown air brick of ladle according to claim 1, it is characterized in that: the upper end of described centering locate moulds is taper type, size matches with brick cup hole lower taper, mould stage casing is identical with hold-down mechanism substrate thread root diameter, the upper surface annulus part of bottom cylinder and hold-down mechanism baseplate-laminating.
3. the replacing method of the exterior bottom-blown air brick of ladle according to claim 1, it is characterized in that: described setting tool is divided into two portions, frustum with an aperture centered by front end, rear end is steel pipe, frustum matches with brick cup hole lower taper, centre hole is identical with setting tool pipe diameter, is greater than gas permeable brick air inlet steel pipe.
4. the replacing method of the exterior bottom-blown air brick of ladle according to claim 1, it is characterized in that: described hydraulic ram comprises cylinder barrel, with the internal thread disk coordinating with gas permeable brick air inlet steel tube screw thread, in the middle of its cylinder barrel, be steel pipe, cylinder barrel is up and down respectively into and out of hydraulic fluid port; Oil cylinder upper and lower covers shape and structure is identical, requires surfacing bright and clean, and upper and lower covers centre hole coordinates with oil cylinder piston by sealing-ring, and its piston rod is that a slightly larger in diameter is in the steel pipe of gas permeable brick bottom; Disk internal thread coordinates with gas permeable brick bottom steel gas thread.
5. according to the replacing method of the exterior bottom-blown air brick of ladle described in claim 1 ~ 4 any one, it is characterized in that: comprise the following steps:
(1) adopt centering locate moulds, using hold-down mechanism substrate as benchmark, by coordinating of centering locate moulds shape and hold-down mechanism substrate, brick cup profile, accurately locate the position of brick cup; While making gas permeable brick be installed in brick cup, the relative hold-down mechanism substrate in position is fixed, and makes gas permeable brick plummet vertical with plane;
(2) gas permeable brick is installed:
Ladle is kept flat, gas permeable brick is smeared after chamotte, setting tool is inserted to gas permeable brick air inlet steel pipe, setting tool comprises frustum and steel pipe, the T-shaped setting of frustum and steel pipe, frustum is near gas permeable brick bottom surface, and level is inserted brick cup hole, the frustum conical surface closely cooperates mutually with brick cup hole lower taper, has guaranteed the right alignment of brick cup and gas permeable brick;
(3) take out gas permeable brick:
1. be first blown into the pressurized air of relative low temperature, connect compressed air line, be blown into 1-5 minute pressurized air in gas permeable brick, pressure position 3-6bar pressurized air enters gas permeable brick by steel pipe, evenly enters ladle by gas permeable brick; The relative brick cup cooling of gas permeable brick that will dismantle is shunk;
2. use hydraulic ram, take hold-down mechanism substrate as basis, use cylinder piston rod to be inserted in gas permeable brick bottom steel pipe, upper cover is positioned over hold-down mechanism pedestal, and internal thread disk is screwed on gas permeable brick bottom steel gas thread, and disk is near contact cylinder piston rod, use hydraulic oil pump to pass into pressure oil to oil cylinder, piston rod promotes internal thread disk under pressure, and internal thread disk pulls gas permeable brick by screw thread pair, thereby gas permeable brick is extracted from brick cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046308.XA CN103789492B (en) | 2014-02-10 | 2014-02-10 | The replacing options of the exterior bottom-blown air brick of a kind of ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046308.XA CN103789492B (en) | 2014-02-10 | 2014-02-10 | The replacing options of the exterior bottom-blown air brick of a kind of ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103789492A true CN103789492A (en) | 2014-05-14 |
| CN103789492B CN103789492B (en) | 2015-08-05 |
Family
ID=50665543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410046308.XA Active CN103789492B (en) | 2014-02-10 | 2014-02-10 | The replacing options of the exterior bottom-blown air brick of a kind of ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103789492B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819645A (en) * | 2015-04-21 | 2015-08-05 | 梧州市海邦科技有限公司 | Split-type ventilating brick and installation method thereof |
| CN105397076A (en) * | 2015-12-31 | 2016-03-16 | 保定安保能冶金设备有限公司 | Aluminum liquid tundish facilitating change of deaerated bricks |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030434Y (en) * | 2007-06-08 | 2008-03-05 | 武汉钢铁(集团)公司 | Ladle outer-loading air brick hot drawing apparatus |
| CN101497935A (en) * | 2008-02-03 | 2009-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Mounting and locating method for changeable air brick |
| CN201659285U (en) * | 2010-04-01 | 2010-12-01 | 濮阳濮耐高温材料（集团）股份有限公司 | Replaceable built-in air brick for molten iron ladle |
| CN102676730A (en) * | 2012-05-25 | 2012-09-19 | 宣化钢铁集团有限责任公司 | Converter bottom blowing air brick, special drilling machine and quick thermal replacement method of air brick |
-
2014
- 2014-02-10 CN CN201410046308.XA patent/CN103789492B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030434Y (en) * | 2007-06-08 | 2008-03-05 | 武汉钢铁(集团)公司 | Ladle outer-loading air brick hot drawing apparatus |
| CN101497935A (en) * | 2008-02-03 | 2009-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Mounting and locating method for changeable air brick |
| CN201659285U (en) * | 2010-04-01 | 2010-12-01 | 濮阳濮耐高温材料（集团）股份有限公司 | Replaceable built-in air brick for molten iron ladle |
| CN102676730A (en) * | 2012-05-25 | 2012-09-19 | 宣化钢铁集团有限责任公司 | Converter bottom blowing air brick, special drilling machine and quick thermal replacement method of air brick |
Non-Patent Citations (1)
| Title |
|---|
| 张道华等: "钢包热换式外装底吹氩透气砖工艺的开发与应用", 《连铸》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819645A (en) * | 2015-04-21 | 2015-08-05 | 梧州市海邦科技有限公司 | Split-type ventilating brick and installation method thereof |
| CN104819645B (en) * | 2015-04-21 | 2016-08-24 | 陕西阳光雨生态科技有限公司 | A kind of split type air brick and installation method thereof |
| CN105397076A (en) * | 2015-12-31 | 2016-03-16 | 保定安保能冶金设备有限公司 | Aluminum liquid tundish facilitating change of deaerated bricks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103789492B (en) | 2015-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103789492B (en) | The replacing options of the exterior bottom-blown air brick of a kind of ladle | |
| CN102401563B (en) | Water-cooling furnace cover of ladle refining furnace with high-temperature camera shooting function | |
| CN110846452A (en) | Device and method for searching leakage point of damaged cooling wall of blast furnace | |
| CN103582535A (en) | Refractory element, assembly and tundish for transferring molten metal | |
| CN102399931A (en) | Hot replacement method of bottom blowing element of top-bottom combined blown converter | |
| CN104403694A (en) | Liquid-state continuous slag discharge device and slag discharge method of fixed bed gasification furnace | |
| CN204294914U (en) | A kind of quick replacement device of ladle nozzle brick | |
| CN210254208U (en) | Long service life's whole air brick | |
| CN104878162A (en) | Device for monitoring water leakage of oxygen lance for vacuum refining furnace | |
| CN105087872A (en) | Repairing method of RH refining furnace vacuum chamber tank bottom and circulation pipe | |
| CN209702791U (en) | Suspender is used in a kind of dismounting of blast furnace bustle pipe | |
| CN207479571U (en) | A kind of sealing fixed structure of antigravity casting ceramic lift tube | |
| CN202903419U (en) | Sealing device for RH refining furnace vacuum degree detection | |
| CN201785317U (en) | Mullite mixed fiber precast block product | |
| CN104792605A (en) | High-pressure sealing digestion tank | |
| CN204224552U (en) | The liquid continuous discharging slag device of fixed-bed gasification furnace | |
| CN203778755U (en) | Air brick capable of conducting heat transfer | |
| CN204281545U (en) | A kind of molten tin bath puts tin device | |
| CN210773434U (en) | Furnace cap device of aluminum trichloride reaction furnace | |
| CN205188325U (en) | Iron notch of blast furnace mud cover making devices | |
| CN220739255U (en) | High-temperature forming die for rupture disk with temperature adjusting function | |
| CN204301507U (en) | A kind of Induction Furnace liner ejecting device | |
| CN217423303U (en) | Device for air vortex cooling flame detector | |
| CN219955295U (en) | Automatic monitoring device for gas boiler | |
| CN109868334A (en) | A kind of dismounting of blast furnace bustle pipe suspender and method for dismounting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |