CN220793873U - Anti-torsion and long-life submerged arc furnace door - Google Patents
Anti-torsion and long-life submerged arc furnace door Download PDFInfo
- Publication number
- CN220793873U CN220793873U CN202321185910.2U CN202321185910U CN220793873U CN 220793873 U CN220793873 U CN 220793873U CN 202321185910 U CN202321185910 U CN 202321185910U CN 220793873 U CN220793873 U CN 220793873U
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- Prior art keywords
- furnace door
- refractory
- life
- locking
- submerged arc
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- 239000011449 brick Substances 0.000 claims abstract description 62
- 239000010410 layer Substances 0.000 claims abstract description 34
- 238000005520 cutting process Methods 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000011247 coating layer Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052863 mullite Inorganic materials 0.000 claims description 5
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 8
- 238000003723 Smelting Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000001595 contractor effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an anti-torsion and long-service-life submerged arc furnace door, which comprises a transverse beam and a longitudinal beam, wherein a furnace door bottom plate is fixedly paved on a furnace door frame formed by the transverse beam and the longitudinal beam, a peripheral plate is fixedly arranged around the periphery of the furnace door bottom plate, the peripheral plate and the furnace door bottom plate enclose a fireproof heat insulation groove, and an anchor plate is fixedly connected to the transverse beam or the longitudinal beam and extends into the fireproof heat insulation groove; a heat-insulating pouring layer, a refractory fiber layer and a masonry layer of refractory bricks are sequentially paved on a furnace door bottom plate in the refractory heat-insulating groove towards the direction of the notch, and a high-temperature glue coating layer is coated on the masonry layer of the refractory bricks; adjacent two refractory bricks are mutually locked through the locking cutting, and the refractory bricks are also connected to the anchor plate through the connecting cutting. The furnace door of the submerged arc furnace has the advantages that the binding force of the built refractory bricks is strong, the anti-bending deformation capability of the furnace door is good, the heat energy can be effectively prevented from being leaked, and the service life of the furnace door is long.
Description
Technical Field
The utility model relates to an ore smelting furnace for metal smelting, in particular to an improvement of a furnace door structure of the ore smelting furnace.
Background
The submerged arc furnace is a continuous operation industrial electric furnace with wide application, and is mainly used for producing ferroalloys such as ferrosilicon, ferromanganese, ferrotungsten, ferrosilicon and the like. The furnace door is an important part of the submerged arc furnace, and is frequently opened due to the requirements of feeding and pushing operations, so that the furnace door bears larger temperature gradient and thermal shock, and the furnace door is smooth to start and drop and good in sealing performance and bears larger temperature difference between the inner wall and the outer wall.
The traditional submerged arc furnace door is characterized in that heavy castable is poured on a furnace door frame to serve as a furnace door lining structure, but the furnace door lining layer with the structure is prone to lamellar cracks, has insufficient heat insulation performance and is relatively short in service life. For this reason, the applicant applied for the patent of the utility model of "submerged arc furnace door" on the 2015, 05 and 01, patent No.: 201520274579.0 the utility model replaces the furnace door castable lining with the mullite sintered brick lining, thereby greatly improving the heat insulation performance of the furnace door and prolonging the service life of the furnace door. However, the mullite baked bricks are mutually arranged on the furnace door frame by means of wedge-shaped inclined planes on adjacent brick bodies, and the furnace door temperature is continuously and severely changed due to frequent opening of the furnace door, so that the furnace door refractory brick masonry layer is repeatedly subjected to the repeated action of heat expansion and cold contraction changes. When the furnace door is closed, the refractory bricks are mutually extruded, and when the furnace door is opened, the refractory bricks are mutually separated, and the refractory brick masonry layer is continuously expanded and contracted, so that hot air in the furnace can permeate into the metal furnace door frame along the masonry seams, corrosion is formed on the metal furnace door frame, more serious, the repeated thermal expansion and contraction effect is realized, the masonry seams are continuously accumulated and enlarged, the refractory bricks are caused to fall off, the refractory brick masonry layer is collapsed, and the service life and the heat insulation performance of the furnace door are seriously influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the utility model is to provide the anti-torsion and long-service-life submerged arc furnace door which not only has strong binding force of the built refractory bricks, but also can effectively prevent heat energy from leaking out, and has long service life.
In order to solve the technical problems, the anti-torsion and long-service-life submerged arc furnace door comprises a transverse beam and a longitudinal beam, wherein a furnace door bottom plate is fixedly paved on a furnace door frame formed by the transverse beam and the longitudinal beam, a peripheral plate is fixedly arranged around the periphery of the furnace door bottom plate, the peripheral plate and the furnace door bottom plate enclose a fireproof heat insulation groove, and an anchor plate is fixedly connected to the transverse beam or the longitudinal beam and extends into the fireproof heat insulation groove; a heat-insulating pouring layer, a refractory fiber layer and a masonry layer of refractory bricks are sequentially paved on a furnace door bottom plate in the refractory heat-insulating groove towards the direction of the notch, and a high-temperature glue coating layer is coated on the masonry layer of the refractory bricks; adjacent two refractory bricks are mutually locked through the locking cutting, and the refractory bricks are also connected to the anchor plate through the connecting cutting.
In the structure, because the two adjacent refractory bricks are mutually locked through the locking cutting and the refractory bricks are connected to the anchor plate through the connecting cutting, the connecting and fixing structure through the locking cutting and the connecting cutting can ensure that the refractory bricks are mutually firmly locked into a whole on one hand, the mutual binding force of the refractory bricks on the lining building layer of the furnace door is greatly improved, the brick falling and collapse caused by the change of the brick joints of the building bricks can not occur even under the working condition of frequent temperature change, and on the other hand, the refractory bricks are connected to the anchor plate through the connecting cutting, so that the connecting contact area is large and the connection is more firm and reliable; the locking cutting and the connecting cutting which are positioned in the masonry joint or the connecting joint also block the heat energy in the furnace from leaking to the door frame body of the furnace along the refractory brick joint, thereby not only effectively ensuring the temperature in the furnace and improving the heat efficiency, but also reducing the erosion of harmful hot air to the metal frame and prolonging the service life of the furnace door. And because the heat-insulating pouring layer and the refractory fiber layer are paved between the refractory brick masonry layer and the bottom plate of the furnace door, the heat-insulating property of the furnace door is effectively improved, the heat energy loss in the furnace is avoided, the smelting electric energy is saved, the heat expansion and cold contraction effects of the heat energy on the furnace door frame are also lightened by the structure, the thermal deformation of the furnace door is lightened, and the smoothness of the movement of the furnace door is improved.
In a preferred embodiment of the utility model, the anchor sheet extends into the insulation channel to a height less than the height of the refractory bricks. The two opposite side surfaces of the refractory brick are respectively provided with a locking slot and a connecting slot; the other two opposite sides of the refractory brick are respectively provided with tenons and mortises. Two parallel locking slots are arranged on one side surface of the refractory brick, and a parallel locking slot and a parallel connecting slot are arranged on the other opposite side surface of the refractory brick. The structural refractory bricks have stronger locking combination degree and can lighten the adverse effect of air flow on the anchor plate.
In a preferred embodiment of the utility model, the locking slots on two adjacent refractory bricks are arranged opposite to each other, and locking cutting strips made of heat-resistant stainless steel are inserted into the opposite locking slots. An anchor plate connecting groove is formed in the anchor plate, and a connecting cutting is inserted between the opposite anchor plate connecting groove and the connecting slot. The locking and connecting inserts are each made of heat resistant stainless steel, the locking and connecting inserts extending from one side peripheral plate to the opposite side peripheral plate. Forming a firm oven door liner.
According to the preferred embodiment of the utility model, the refractory brick is a mullite sintered brick, the refractory fiber layer is a zirconium aluminum ceramic fiber blanket, and the heat insulation casting layer is an alumina hollow sphere light casting material casting layer. Has better heat insulation performance.
Drawings
The torsion-resistant and long-life submerged arc furnace door of the utility model is further described below with reference to the accompanying drawings and the detailed description.
FIG. 1 is a schematic diagram of the front structure of one embodiment of the torsion resistant and long life submerged arc furnace door of the present utility model;
FIG. 2 is a schematic view of the structure of section A-A in FIG. 1;
FIG. 3 is an enlarged partial schematic view of section I of FIG. 2;
FIG. 4 is a front view of the refractory block of FIG. 1;
FIG. 5 is a left side view of FIG. 4;
fig. 6 is a top view of fig. 4.
In the figure, 1-peripheral plate, 2-furnace door bottom plate, 3-transverse beam, 4-longitudinal beam, 5-pressing plate, 6-hanging ring seat, 7-sliding guide wheel, 8-reinforcing plate, 9-high temperature cement coating, 10-refractory brick, 11-locking cutting, 12-connecting cutting, 13-anchoring plate, 14-refractory fiber layer, 15-heat insulation casting layer, 16-locking slot, 17-tenon, 18-connecting slot and 19-tenon slot.
Detailed Description
The anti-torsion and long-life submerged arc furnace door shown in fig. 1 is formed by fixedly connecting a transverse beam 3 and a longitudinal beam 4 which are mutually perpendicular and crossed by a welding method, wherein the transverse beam 3 and the longitudinal beam 4 are both I-shaped steel. The furnace door frame comprises 10 transverse beams 3 which are parallel to each other and 5 longitudinal beams 4 which are parallel to each other, wherein the transverse beams 3 are communicated along the height direction of the furnace door, namely, each transverse beam 3 is a continuous I-steel. The longitudinal beam 4 is formed by welding 11 short beams along the width of the furnace door, each short beam is perpendicularly and crosswise welded on the transverse beam 3, and a triangular plate-shaped reinforcing plate 8 is welded between the perpendicularly-crossed transverse beam 3 and the longitudinal beam 4 along the surface of the perpendicularly-crossed transverse beam and the longitudinal beam. The furnace door frame formed by the transverse beam 3 and the longitudinal beam 4 is fixedly paved with a furnace door bottom plate 2, the periphery of the furnace door frame is welded with a peripheral plate 1, the furnace door bottom plate 2 and the peripheral plate 1 enclose a fire-resistant heat-insulating groove with an outward opening, and the furnace door bottom plate 2 and the peripheral plate 1 are both made of heat-resistant stainless steel plates. Two sliding guide wheels 7 are arranged on two sides of the furnace door frame through guide wheel supports, and two hanging ring seats 6 are welded at the upper end of the furnace door frame so as to lift the furnace door.
As shown in fig. 2 and 3, in the cavity of the refractory and heat-insulating tank, a heat-insulating casting layer 15, a refractory fiber layer 14 and a masonry layer of the refractory brick 10 are laid in this order from the door bottom plate 2 toward the notch position, and a high-temperature cement coating layer 9 is applied to the outer surface of the masonry layer of the refractory brick 10. The heat insulation casting layer 15 is formed by casting alumina hollow sphere light casting material; the refractory fiber layer 14 is formed by paving a zirconium-aluminum ceramic fiber blanket; the refractory brick 10 is a mullite sintered brick; the high-temperature cement coating 9 is a hardened high-temperature-resistant cement coating.
An anchor plate 13 extending towards the refractory and heat-insulating groove cavity is fixedly welded on the transverse beam 3, and the anchor plate 13 can be welded on the longitudinal beam 4. Two mutually parallel locking grooves 16 are arranged on the masonry joint side surfaces of two adjacent refractory bricks 10, locking cutting bars 11 are inserted into the opposite locking grooves 16, the locking cutting bars 11 are heat-resistant stainless steel bars with rectangular cross sections, and the locking cutting bars 11 extend from the peripheral plate 1 on one side of the furnace door to the peripheral plate 1 on the opposite side. The side of the refractory brick 10 corresponding to the anchor plate 13, which is bonded by masonry, is provided with a locking slot 16 and a connecting slot 18 which are parallel to each other, wherein the locking slot 16 and the opposite locking slot 16 on the adjacent refractory brick are also inserted with a locking cutting 11, the connecting slot 18 and the anchor plate connecting slot of the opposite anchor plate 13 are inserted with a connecting cutting 12, the connecting cutting 12 is also a heat-resistant stainless steel bar with a rectangular section, and the connecting cutting 12 is also a peripheral plate extending from one side of the furnace door to the other side. The anchor plate 13 has a lower height in the refractory and heat-insulating tank than the refractory bricks 10, and thus the anchor plate 13 is buried in the masonry joint of two adjacent refractory bricks 10.
As shown in fig. 4, 5 and 6, the upper and lower end surfaces of the refractory brick 10 are planar, the opposite left and right sides of the refractory brick 10 are respectively provided with a locking slot 16 and a connecting slot 18, the left side is provided with two parallel locking slots 16, the right side of the refractory brick 10 is provided with a locking slot 16 and a connecting slot 18, and the locking slot 16 is parallel to the connecting slot 18. A tongue 17 is provided on the front side of the refractory brick 10, and a groove 19 is provided on the rear side thereof, the groove 19 being shaped to match the tongue 17 for mutual insertion during masonry.
Claims (8)
1. The utility model provides a hot stove furnace gate in antitorque length life-span ore deposit, includes transverse beam (3) and longitudinal beam (4), has fixedly laid furnace gate bottom plate (2) on the stove door frame that transverse beam (3) and longitudinal beam (4) constitute, and the periphery of furnace gate bottom plate (2) is fixed with peripheral board (1) around ground, and this peripheral board (1) and furnace gate bottom plate (2) enclose into fire-resistant heat-insulating groove, its characterized in that: an anchor plate (13) is fixedly connected to the transverse beam (3) or the longitudinal beam (4), and the anchor plate (13) extends into the fireproof heat insulation groove; a heat insulation pouring layer (15), a refractory fiber layer (14) and a masonry layer of the refractory brick (10) are sequentially paved on a furnace door bottom plate (2) in the refractory heat insulation groove towards the direction of the notch, and a high-temperature glue coating layer (9) is coated on the masonry layer of the refractory brick (10); adjacent refractory bricks (10) are mutually locked through locking cutting (11), and the refractory bricks (10) are also connected to an anchor plate (13) through connecting cutting (12).
2. The torsion-resistant variable-life submerged arc furnace door of claim 1, wherein: the height of the anchor plate (13) extending into the heat insulation groove is lower than the height of the refractory bricks (10).
3. The torsion-resistant and long-life submerged arc furnace door according to claim 1 or 2, wherein: the two opposite side surfaces of the refractory brick (10) are respectively provided with a locking slot (16) and a connecting slot (18); the opposite two sides of the refractory brick (10) are respectively provided with a tenon (17) and a mortise (19).
4. The torsionally resistant, variable life submerged arc furnace door of claim 3, wherein: two parallel locking slots (16) are arranged on one side surface of the refractory brick (10), and the other opposite side surface is provided with the parallel locking slots (16) and connecting slots (18).
5. The torsion-resistant and long-life submerged arc furnace door according to claim 1 or 2, wherein: the locking slots (16) on two adjacent refractory bricks (10) are oppositely arranged, and locking cutting strips (11) are inserted into the opposite locking slots (16), and the locking cutting strips (11) are made of heat-resistant stainless steel.
6. The torsion-resistant and long-life submerged arc furnace door according to claim 1 or 2, wherein: an anchor plate connecting groove is arranged on the anchor plate (13), and a connecting cutting (12) is inserted between the opposite anchor plate connecting groove and the connecting slot (18).
7. The torsion-resistant variable-life submerged arc furnace door of claim 1, wherein: the locking and connecting inserts (11, 12) are each made of heat resistant stainless steel, the locking and connecting inserts (11, 12) extending from one side peripheral plate (1) to the opposite side peripheral plate (1).
8. The torsion-resistant variable-life submerged arc furnace door of claim 1, wherein: the refractory brick (10) is a mullite sintered brick, the refractory fiber layer (14) is a zirconium aluminum ceramic fiber blanket, and the heat insulation pouring layer (15) is an aluminum oxide hollow sphere light pouring material pouring layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185910.2U CN220793873U (en) | 2023-05-17 | 2023-05-17 | Anti-torsion and long-life submerged arc furnace door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321185910.2U CN220793873U (en) | 2023-05-17 | 2023-05-17 | Anti-torsion and long-life submerged arc furnace door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220793873U true CN220793873U (en) | 2024-04-16 |
Family
ID=90660320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321185910.2U Active CN220793873U (en) | 2023-05-17 | 2023-05-17 | Anti-torsion and long-life submerged arc furnace door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220793873U (en) |
-
2023
- 2023-05-17 CN CN202321185910.2U patent/CN220793873U/en active Active
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