CN212199113U - Coke oven door with high thermal shock resistance - Google Patents
Coke oven door with high thermal shock resistance Download PDFInfo
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- CN212199113U CN212199113U CN202020520161.4U CN202020520161U CN212199113U CN 212199113 U CN212199113 U CN 212199113U CN 202020520161 U CN202020520161 U CN 202020520161U CN 212199113 U CN212199113 U CN 212199113U
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- thermal shock
- erosion
- door frame
- shock resistant
- mullite
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Abstract
The utility model discloses a coke oven furnace gate with high thermal shock resistance, including the furnace door frame, it has anti erosion mullite brick layer to build by laying bricks or stones in the hot side of face of furnace door frame, and this anti erosion mullite brick layer's inboard is built by laying bricks or stones the mullite light brick layer, and zirconium-containing ceramic fiber board has been laid to the medial surface on mullite light brick layer, and the anti erosion mullite brick that constitutes anti erosion mullite brick layer is fixed in the furnace door frame through anchor bolt, has laid thermal shock resistance tile between the medial surface of zirconium-containing ceramic fiber board and furnace door frame, and the opening of this thermal shock resistance tile is towards zirconium-containing ceramic fiber board, and it has the honeycomb ceramic filling layer to fill between thermal shock resistance tile and the furnace door frame medial surface; thermal shock resistant ribbed plates of thermal shock resistant panels which are connected with each other are embedded in the brick body of the anti-erosion mullite brick, and the thermal shock resistant panels are parallel to the hot surface of the furnace door frame. The coke oven door not only can effectively block the erosion damage of high-temperature harmful gas to the oven door, but also has higher thermal shock resistance.
Description
Technical Field
The utility model relates to a clean heat recovery coke oven, in particular to a clean heat recovery coke oven machine side and coke side lower oven door structure with high thermal shock resistance and thermal shock resistance.
Background
The clean heat recovery coke oven mainly comprises a carbonization chamber oven top, a mechanical coke side oven door, a main wall, an oven bottom and the like. Wherein, the machine side furnace door and the coke side furnace door both adopt an upper section and a lower section, the upper section is a fixed furnace door, and the lower section is a movable furnace door. The clean heat recovery coke oven belongs to a large-volume coking chamber coke oven, and has the advantages of large coke lumpiness, uniform coke quality, less coal charging and coke discharging times and the like, but the large-volume coking chamber also causes the adverse effect of large oven door area.
The furnace door of the existing heat recovery coke furnace generally adopts heavy castable as the lining of the furnace door, the castable lining has large thermal conductivity and poor heat preservation performance, the furnace door is a main channel for radiating and transferring heat outwards of a coke furnace carbonization chamber, a large amount of heat is transferred and radiated outwards through the furnace door, the reduction of the thermal efficiency of the coke furnace carbonization chamber is inevitably caused, and the production efficiency of the coke furnace is lowered. Meanwhile, the hot inner side of the door surface of the coke oven directly bears the long-term action of the high temperature of the carbonization chamber, a large amount of harmful and highly corrosive high-temperature gas generated in the carbonization process erodes the high-temperature gas, and in the prior art, the heavy castable is difficult to block the long-term erosion damage of the high temperature and harmful gas to the high-temperature gas, the door is easy to crack and even burn through, so that the heat insulation layer of the door is peeled off, collapsed and damaged, the low-temperature gas is permeated, and the high-temperature heat energy is greatly dissipated, thereby not only reducing the heat energy utilization rate, but.
In order to overcome the defects of the prior art, the application applies for a low-heat-conduction high-heat-insulation coke oven door in 2016, 08 and 26 days, and the patent numbers are as follows: 201620950117.0, the patent adopts a multilayer composite fire-resistant heat insulation structure, and an anti-corrosion mullite brick layer and a mullite light brick layer are sequentially built on the hot side of the frame surface of the coke oven door, thereby improving the capability of resisting harmful gas corrosion of the coke oven door and having higher fire-resistant heat insulation performance. The coke oven door with the structure still has some obvious defects in use, firstly, the coke oven door bears large thermal shock when the coke oven is used for charging and discharging the coke, and the large temperature gradient can be generated between the multiple layers of the fire-resistant spacer layers of the coke oven door, so that internal stress and deformation are generated between the fire-resistant spacer layers, the internal stress and the deformation can cause the cracking and even collapse of the heat-insulating layer of the coke oven door, the service life of the coke oven door is greatly shortened, and the heat-insulating layer of the coke oven door is formed by overlapping multiple layers of fire-resistant materials, so that the heat conductivity and the thermal shock resistance of the heat-insulating layer of the coke oven door are still insufficient, and.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a coke oven door with high thermal shock resistance, which not only can effectively block the erosion damage of high-temperature harmful gas to the oven door, but also has higher thermal shock resistance.
In order to solve the technical problem, the utility model discloses a coke oven furnace gate with high thermal shock resistance, including the furnace door frame, it has anti-erosion mullite brick layer to build by laying bricks or stones in the hot side of face of furnace door frame, and the inboard on this anti-erosion mullite brick layer is built by laying bricks or stones has the mullite light brick layer, and zirconium-containing ceramic fiber board has been laid to the medial surface on mullite light brick layer, and the anti-erosion mullite brick that constitutes anti-erosion mullite brick layer is fixed in the furnace door frame through anchor bolt, has laid thermal shock resistant tile between the medial surface of zirconium-containing ceramic fiber board and furnace door frame, and this thermal shock resistant tile's opening is towards zirconium-containing ceramic fiber board, and it has the honeycomb ceramic filling layer to fill between thermal shock resistant tile and the furnace door frame medial surface; thermal shock resistant ribbed plates of thermal shock resistant panels which are connected with each other are embedded in the brick body of the anti-erosion mullite brick, and the thermal shock resistant panels are parallel to the hot surface of the furnace door frame.
In the structure, because the thermal shock resistant tile is laid between the zirconium-containing ceramic fiber board and the inner side surface of the furnace door frame, the honeycomb ceramic filling layer is filled between the thermal shock resistant tile and the furnace door frame, the arc-shaped thermal shock resistant tile can effectively absorb and release internal stress and deformation caused by violent temperature gradient, and convection-free air is contained in the inner cavity of the thermal shock resistant tile to form an excellent heat insulation structure, the filled honeycomb ceramic material contains countless equal holes, the geometric surface area of the carrier is greatly increased by the porous structure, and the thermal shock resistance are improved. And because the thermal shock resistant panel and the thermal shock resistant rib plate which are mutually connected are embedded in the brick body of the anti-erosion mullite brick, the mechanical strength and the thermal shock resistance of the brick body are effectively enhanced by the thermal shock resistant panel and the thermal shock resistant rib plate, the heat conducting property of the thermal shock resistant panel and the thermal shock resistant rib plate effectively homogenizes the temperature of the brick body, reduces the temperature gradient in the brick body and eliminates the internal stress of the brick body. The anti-erosion mullite brick is built on the hot inner side surface of the furnace door frame surface, has stronger high temperature resistance and harmful gas erosion resistance, not only effectively improves the fire-resistant and heat-insulating efficiency of the furnace door, enhances the mechanical strength and the thermal shock resistance of the furnace door, avoids the damage to a heat-insulating layer due to crack gaps generated by rapid cooling, rapid heating and mechanical impact, but also has light weight and long service life; the mullite light brick has the characteristics of low thermal conductivity, small thermal capacity and good thermal shock resistance, has the advantages of light weight and good thermal stability besides excellent fireproof heat preservation property, can effectively improve the fireproof heat preservation effect of the furnace door, and effectively reduces the dead weight of the furnace door.
The utility model discloses a preferred embodiment, the thermal shock resistance tile is the semicircle plate structure, and this thermal shock resistance tile sets gradually along the furnace door frame medial surface. Is convenient for manufacturing and laying.
The utility model discloses a preferred embodiment, the thermal shock resistant floor mutually perpendicular setting of the thermal shock resistant panel of inlaying in anti erosion mullite brick body, each anti erosion mullite brick corresponds a thermal shock resistant panel, fixedly connected with 2-6 thermal shock resistant floors on each thermal shock resistant panel. Can effectively improve the mechanical strength of the brick body and is easy to manufacture.
The utility model discloses a further embodiment, thermal shock resistant tile is made by heat-resisting steel, the honeycomb ceramic filling layer is formed by the honeycomb ceramic packing. Has good high temperature resistance and excellent mechanical property.
The utility model discloses a further embodiment, the anti-erosion mullite brick in the anti-erosion mullite brick layer is the hexahedron structure, and its transversal is trapezoidal, and the relative both sides face of this anti-erosion mullite brick is provided with thermal-insulated tenon and thermal-insulated recess respectively, and this thermal-insulated tenon and thermal-insulated recess can be joggled joint each other. The joggled heat-insulating tenon and the heat-insulating groove enable the bricks to be tightly meshed, the combination connecting force is strong, the furnace door is good integrally, and the joggled joint structure between the bricks also blocks the leakage of high-temperature flame and high-temperature airflow.
The utility model discloses a further embodiment, the mullite light brick on mullite light brick layer is regular hexahedron structure. Has reasonable structure and is convenient to process and manufacture.
Drawings
The coke oven door with high thermal shock resistance of the present invention will be further described with reference to the accompanying drawings and the following detailed description.
FIG. 1 is a schematic front view of one embodiment of a coke oven door having high thermal shock resistance of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of the embodiment shown in FIG. 1;
FIG. 3 is a schematic front view of the embodiment of FIG. 1 showing the construction of an erosion resistant mullite brick with bolt counterbores;
FIG. 4 is a schematic cross-sectional view B-B of the erosion resistant mullite brick of FIG. 3;
FIG. 5 is a schematic front view of the embodiment of FIG. 1 without the bolt counter bores in the erosion resistant mullite brick;
FIG. 6 is a schematic cross-sectional view C-C of the erosion resistant mullite brick of FIG. 5;
FIG. 7 is a schematic front view of the thermal shock resistant tile of the embodiment of FIG. 1;
fig. 8 is a top view of the structure shown in fig. 7.
In the figure, 1-furnace door frame, 2-frame reinforcing rib, 3-honeycomb ceramic filling layer, 4-zirconium-containing ceramic fiber board, 5-mullite light brick, 6-thermal shock resistant tile, 7-erosion resistant mullite brick layer, 8-anchoring bolt, 9-bolt protective plug, 10-heat insulation groove, 11-heat insulation tenon, 12-bolt counter bore, 13-thermal shock resistant panel and 14-thermal shock resistant rib plate.
Detailed Description
As shown in figures 1 and 2, the coke oven door with high thermal shock resistance comprises a door frame 1, wherein the door frame 1 is composed of a rectangular steel plate and a door frame surrounding the rectangular steel plate, so that the door frame 1 is in a rectangular structure with a shallow groove in the middle. The outer side surface of the furnace door frame 1 is provided with frame reinforcing ribs 2 which are arranged transversely and longitudinally in a staggered mode, and section steel forming the frame reinforcing ribs 2 is welded on the outer plate surface of the rectangular steel plate. An anti-erosion mullite brick layer 7 is built on the hot side of the surface of the shallow groove-shaped opening part of the furnace door frame 1, the anti-erosion mullite brick layer 7 is composed of anti-erosion mullite bricks, a mullite light brick layer 5 is built on the inner side surface of the anti-erosion mullite brick layer 7, and a zirconium-containing ceramic fiber plate 4 is laid on the inner side surface of the mullite light brick layer 5. Thermal shock resistant tiles 6 are laid between the zirconium-containing ceramic fiber plate 4 and the inner side surface of the furnace door frame 1, the thermal shock resistant tiles 6 are in a semi-arc plate structure, and the thermal shock resistant tiles 6 are made of heat-resistant steel. The thermal shock resistant tiles 6 of the semi-arc plate are arranged in sequence along the inner side surface of the furnace door frame 1 in a straight line, and the semi-circular openings of the thermal shock resistant tiles 6 face the zirconium-containing ceramic fiber plate 4. And a honeycomb ceramic filling layer 3 is filled between the thermal shock resistant tile 6 and the inner side surface of the furnace door frame 1, and the honeycomb ceramic filling layer 3 is formed by filling honeycomb ceramics.
The anti-erosion mullite brick layer 7 is formed by laying anti-erosion mullite bricks in a tiled mode, the anti-erosion mullite bricks at the crossing positions of every row and every column which are spaced from each other are fixed bricks, bolt counter bores 12 are formed in the fixed bricks of the anti-erosion mullite bricks, anchor bolts 8 penetrate through the anti-erosion mullite bricks, the mullite light bricks, the zirconium-containing ceramic fiber plates 4 and the thermal shock resistant tiles 6 from the bolt counter bores 12 and are screwed and fixed on the plate surface of the furnace door frame 1, the bolt protective plugs 9 are plugged in the bolt counter bores 12 in the anti-erosion mullite bricks by taking refractory cement as a material, and the bolt protective plugs 9 are located at the top ends of the anchor bolts 8. The anti-erosion mullite brick is exposed out of the frame of the furnace door frame with the rectangular shallow groove, and the mullite light brick layer is of a regular hexahedral structure.
As shown in fig. 3 and 4, the anti-erosion mullite brick constituting the anti-erosion mullite brick layer 7 has a hexahedral structure, the cross section of which is a trapezoidal section, the anti-erosion mullite brick is provided with a bolt counter bore 12 and a bolt through hole, and two opposite masonry side surfaces of the anti-erosion mullite brick are respectively provided with a heat insulation tenon 11 and a heat insulation groove 10. The heat insulation tenon 11 and the heat insulation groove 10 are mutually corresponding in shape and can be mutually joggled and joggled, and the adjacent anti-erosion mullite bricks are joggled and joggled with each other through the heat insulation tenon 11 and the heat insulation groove 10 during building. A thermal shock resistant panel 13 and thermal shock resistant rib plates 14 are embedded in the brick body of the anti-erosion mullite brick, a thermal shock resistant panel 13 is embedded in each brick body of the anti-erosion mullite brick, the thermal shock resistant panel 13 is close to and parallel to the surface thermal side face of the furnace door frame 1, four parallel thermal shock resistant rib plates 14 are vertically arranged on the thermal shock resistant panel 13, and each thermal shock resistant panel 13 can also be provided with 2-6 thermal shock resistant rib plates 14. The thermal shock resistant panel 13 and the thermal shock resistant rib 14 are also made of heat resistant steel.
The erosion resistant mullite brick shown in fig. 5 and 6 is different from the erosion resistant mullite brick described above in that the bolt counter bore 12 and the bolt through hole are not arranged on the brick body of the erosion resistant mullite brick, and the rest is the same. The anti-erosion mullite brick with the structure is connected to the furnace door frame through the joggle joint of the heat insulation tenon and the heat insulation groove and the adjacent anti-erosion mullite brick with the bolt counter bore.
As shown in fig. 7 and 8, the thermal shock resistant tiles 6 are in a half-arc tile structure, and the thermal shock resistant tiles 6 are made of heat resistant steel.
The above description has been made of a preferred embodiment of the present invention, but the present invention is not limited thereto, and many modifications and variations are possible. All such modifications are intended to be included within the scope of this invention without departing from the basic underlying principles thereof.
Claims (6)
1. The utility model provides a coke oven furnace gate with high thermal shock resistance, includes furnace door frame (1), hot side masonry has anti erosion mullite brick layer (7) in the face of furnace door frame (1), the inboard masonry of this anti erosion mullite brick layer (7) has mullite light brick layer (5), the medial surface of mullite light brick layer (5) has laid contains zirconium ceramic fiber board (4), the anti erosion mullite brick that constitutes anti erosion mullite brick layer (7) is fixed in on furnace door frame (1) through anchor bolt (8), its characterized in that: a thermal shock resistant tile (6) is laid between the zirconium-containing ceramic fiber plate (4) and the inner side surface of the furnace door frame (1), the opening of the thermal shock resistant tile (6) faces the zirconium-containing ceramic fiber plate (4), and a honeycomb ceramic filling layer (3) is filled between the thermal shock resistant tile (6) and the inner side surface of the furnace door frame (1); thermal shock resistant ribbed plates (14) of thermal shock resistant panels (13) which are connected with each other are embedded in the brick body of the anti-erosion mullite brick, and the thermal shock resistant panels (13) are parallel to the hot surface of the furnace door frame (1).
2. The coke oven door with high thermal shock resistance according to claim 1, characterized in that: the thermal shock resistant tile (6) is of a semi-arc plate structure, and the thermal shock resistant tiles (6) are sequentially arranged along the inner side surface of the furnace door frame (1).
3. The coke oven door with high thermal shock resistance according to claim 1, characterized in that: the thermal shock resistant rib plates (14) of the thermal shock resistant panels (13) embedded in the anti-erosion mullite bricks are arranged vertically, each anti-erosion mullite brick corresponds to one thermal shock resistant panel (13), and 2-6 thermal shock resistant rib plates (14) are fixedly connected to each thermal shock resistant panel (13).
4. The coke oven door with high thermal shock resistance according to claim 1, characterized in that: the thermal shock resistant tile (6) is made of heat resistant steel, and the honeycomb ceramic filling layer (3) is formed by filling honeycomb ceramic.
5. The coke oven door with high thermal shock resistance according to claim 1, characterized in that: the anti-erosion mullite brick in the anti-erosion mullite brick layer (7) is of a hexahedral structure, the cross section of the anti-erosion mullite brick is trapezoidal, the two opposite side surfaces of the anti-erosion mullite brick are respectively provided with a heat insulation tenon (11) and a heat insulation groove (10), and the heat insulation tenon (11) and the heat insulation groove (10) can be mutually joggled.
6. The coke oven door with high thermal shock resistance according to claim 1, characterized in that: the mullite light brick of the mullite light brick layer (5) is of a regular hexahedral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020520161.4U CN212199113U (en) | 2020-04-10 | 2020-04-10 | Coke oven door with high thermal shock resistance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020520161.4U CN212199113U (en) | 2020-04-10 | 2020-04-10 | Coke oven door with high thermal shock resistance |
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| CN212199113U true CN212199113U (en) | 2020-12-22 |
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| CN202020520161.4U Active CN212199113U (en) | 2020-04-10 | 2020-04-10 | Coke oven door with high thermal shock resistance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959892A (en) * | 2022-12-22 | 2023-04-14 | 江苏诺明高温材料股份有限公司 | Thermal shock resistant energy-saving durable furnace door brick for coke oven and preparation method thereof |
-
2020
- 2020-04-10 CN CN202020520161.4U patent/CN212199113U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115959892A (en) * | 2022-12-22 | 2023-04-14 | 江苏诺明高温材料股份有限公司 | Thermal shock resistant energy-saving durable furnace door brick for coke oven and preparation method thereof |
| CN115959892B (en) * | 2022-12-22 | 2023-09-15 | 江苏诺明高温材料股份有限公司 | Energy-saving durable furnace door brick for thermal shock resistant coke furnace and preparation method thereof |
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