CN219693879U - Composite furnace top structure of high-temperature kiln - Google Patents
Composite furnace top structure of high-temperature kiln Download PDFInfo
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- CN219693879U CN219693879U CN202320637436.6U CN202320637436U CN219693879U CN 219693879 U CN219693879 U CN 219693879U CN 202320637436 U CN202320637436 U CN 202320637436U CN 219693879 U CN219693879 U CN 219693879U
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- oven
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 49
- 239000011449 brick Substances 0.000 claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 239000000945 filler Substances 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 abstract description 2
- 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 description 7
- 229910052863 mullite Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 229910052593 corundum Inorganic materials 0.000 description 4
- 239000010431 corundum Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The composite furnace roof structure of a high-temperature kiln, relate to the technical field of the high-temperature kiln, including many oven bricks and ceramic square beams, the ceramic square beam is fixed on oven wall or oven shell, the inside of any one oven brick has cavities, there are ceramic fiber fillers in the cavity, the upper portion of left side and right side has right-angled steps of the inward recess, there are inclined planes that incline inwards in the inferior part of the right-angled step, the inferior part of the inclined plane has concave surfaces of "L" shape, the inferior part of the left side of the oven brick has projections, the inferior part of the right side has recesses, and projections and recesses bilateral symmetry are arranged, two adjacent oven bricks hang and set up on both sides of the ceramic square beam through the right-angled step, and the inferior part is docked with recess through the projections, there are ceramic fiber fillers between the concave surfaces of two oven bricks; the utility model has simple structure and can achieve the effects of improving the heat insulation effect and saving energy of the furnace top.
Description
Technical Field
The utility model relates to the technical field of high-temperature kilns, in particular to a composite furnace top structure of a high-temperature kiln.
Background
As is known, along with the rapid development of various industries in China, the high-temperature electric furnace is more and more widely applicable to various industries, however, the requirements on the furnace top structure and the use of materials of the high-temperature kiln are also higher and higher; in general, the furnace roof structure is mainly divided into a vault structure and a suspended ceiling structure, and as the enlargement, specialization and functionalization degree of the furnace are continuously improved, more and more furnaces adopting the suspended ceiling structure are adopted, and the suspended ceiling structure is to hoist the furnace roof bricks on a beam one by one to form the furnace roof; in the past, the roof bricks are mostly made of heavy refractory materials, and the main advantages of the heavy refractory materials are high strength and long service life, the main disadvantages of the heavy refractory materials are large heat storage capacity, high heat conductivity coefficient and large energy consumption, along with the continuous improvement of energy conservation consciousness, people increasingly use light-weight furnace tops, low-temperature ceramic fiber furnace tops are mostly used for low-temperature furnaces with the use temperature below 1400 ℃, and high-temperature ceramic fiber tops are also used for high-temperature furnaces with the use temperature above 1400 ℃, especially with the use temperature above 1600 ℃, besides the very high price: the surface is easy to melt or pulverize, the intensity is low, and the problem of easy damage is solved after long-term bearing of high temperature; therefore, the composite furnace top structure of the high-temperature kiln, which has high strength, good heat insulation effect and energy conservation, is provided and becomes a basic requirement for the technicians in the field.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model discloses a composite furnace top structure of a high-temperature furnace.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the utility model provides a compound furnace roof structure of high temperature kiln, including polylith crown brick and ceramic square beam, the ceramic square beam is fixed on furnace wall or stove outer covering, the inside of arbitrary one crown brick all is equipped with the cavity, be equipped with ceramic fiber filler in the cavity, the upper portion of left surface and right flank all is equipped with the right-angle step of inwards caving in, the lower part at right-angle step all is equipped with the inclined plane of inwards slope, the inclined plane lower part all is equipped with the concave surface of "L" shape, the lower part of crown brick left surface is equipped with the arch, the lower part of right flank is equipped with the recess, and arch and recess bilateral symmetry arrangement, two adjacent crown bricks hang through the right-angle step and establish the both sides at ceramic square beam, and the lower part is equipped with ceramic fiber filler through protruding and recess butt joint between the concave surface of two crown bricks.
The ceramic square beam is a square hollow ceramic tube.
The groove is a square groove or an arc groove, and the shape of the bulge is matched with that of the groove.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
according to the composite furnace roof structure of the high-temperature furnace, the ceramic fiber filler is arranged in the cavity in the furnace roof bricks, the ceramic fiber filler is also arranged between two adjacent furnace roof bricks, and the heavy material and the ceramic fiber filler are organically combined to form the composite furnace roof structure, so that the heat insulation effect and the energy saving effect of the furnace roof can be improved; the utility model has simple structure and effectively reduces the heat accumulation amount of the furnace top.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the structure of the crown block of the present utility model.
In the figure: 1. a roof brick; 2. a ceramic square beam; 3. ceramic fiber filler; 4. a right-angle step; 5. a concave surface; 6. an arc-shaped groove; 7. a cavity; 8. arc-shaped protrusions.
Detailed Description
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
The composite furnace roof structure of the high-temperature furnace comprises a plurality of furnace roof bricks 1 and ceramic square beams 2, wherein the ceramic square beams 2 are fixed on a furnace wall or a furnace shell, the furnace roof bricks 1 are made of corundum, mullite or alumina hollow spheres, cavities 7 are formed in any one furnace roof brick 1, ceramic fiber fillers 3 are arranged in the cavities 7, right-angled steps 4 which are concave inwards are formed in the upper parts of the left side face and the right side face, inclined planes which are inclined inwards are formed in the lower parts of the right-angled steps 4, L-shaped concave surfaces 5 are formed in the lower parts of the inclined planes, protrusions 8 are formed in the lower parts of the left side faces of the furnace roof bricks 1, grooves 6 are formed in the lower parts of the right side faces, the protrusions 8 and the grooves 6 are symmetrically arranged, two adjacent furnace roof bricks 1 are respectively hung on two sides of the ceramic square beams 2, the lower parts are butted with the grooves 6 through the protrusions 8, ceramic fiber fillers 3 are arranged between the concave surfaces 5 of the two furnace roof bricks 1, and the ceramic fiber fillers 3 can select one of high-alumina ceramic fiber, mullite and ceramic fiber according to the requirements of the furnace temperature.
Further, the ceramic square beam 2 is a square hollow ceramic tube, and the ceramic square beam is made of corundum, mullite or silicon carbide.
Further, the grooves 6 are square grooves or arc grooves, and the shape of the protrusions 8 is matched with that of the grooves 6, so that the sealing of the bottoms of the adjacent furnace roof bricks 1 is facilitated.
The installation mode is as follows: the ceramic fiber fillers 3 are placed in the cavity 7 of each furnace roof brick 1, the right-angle steps 4 of two adjacent furnace roof bricks 1 are respectively hung on two sides of the ceramic square beam 2, the lower parts of the two adjacent furnace roof bricks 1 are in sealing butt joint with the bulges 8 through the grooves 6, and the gaps between the two adjacent concave surfaces 5 are filled with the ceramic fiber fillers 3, so that the composite furnace roof structure is formed.
Example 1
Taking an intermittent heating furnace as an example, the using temperature is 1450 ℃, and the volume of a hearth is about 2m 3 The hearth adopts the composite furnace top structure, the external dimension of the furnace lining brick 1 is that the length A=200 mm, the height H=200 mm and the width B=300 mm; the material of the furnace roof brick 1 is mullite, the material of the ceramic square beam 2 is mullite, and the ceramic fiber filler 3 is high-alumina ceramic fiber.
Example 2
Taking an intermittent high-temperature test electric furnace as an example, the using temperature is 1800 ℃, the hearth size is length=500 mm, the width=300 mm and the height=200 mm. The hearth adopts the composite furnace top structure, and the external dimension of the furnace lining brick 1 is A=150mm, H=250mm and B=150mm; the furnace roof brick 1 is made of corundum, the ceramic square beam 2 is made of corundum, and the ceramic fiber filler 3 is alumina ceramic fiber.
Example 3
Taking an intermittent down-draft kiln as an example, the using temperature is 1600 ℃, the kiln chamber size is length=5000 mm, width=2000 mm, and height=2000 mm; the hearth adopts the composite furnace top structure; the external dimension of the furnace lining brick 1 is A=250mm, H=400mm, B=400mm, the material of the furnace top brick 1 is alumina hollow sphere, the material of the ceramic square beam 2 is silicon carbide, and the ceramic fiber filler 3 is mullite ceramic fiber.
Example 4
Taking a continuous tunnel kiln as an example, the using temperature is 1500 ℃, the hearth of the tunnel kiln adopts the composite furnace top structure, and the external dimensions of the lining bricks 1 are A=300mm, H=300mm and B=300mm; the furnace roof brick 1 is made of alumina hollow spheres, the ceramic square beam 2 is made of silicon carbide, and the ceramic fiber filler 3 is mullite ceramic fiber.
The utility model is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the present utility model are presently considered to be suitable, however, it is to be understood that the present utility model is intended to include all such variations and modifications as fall within the spirit and scope of the present utility model.
Claims (3)
1. The utility model provides a compound furnace roof structure of high temperature kiln, includes polylith crown brick and ceramic square beam, characterized by: the ceramic square beam is fixed on a furnace wall or a furnace shell, a cavity is formed in any one furnace roof brick, ceramic fiber fillers are arranged in the cavity, right-angle steps which are sunken inwards are formed in the upper parts of the left side face and the right side face, inclined planes which incline inwards are formed in the lower parts of the right-angle steps, concave faces which are L-shaped are formed in the lower parts of the inclined planes, protrusions are formed in the lower parts of the left side faces of the furnace roof bricks, grooves are formed in the lower parts of the right side faces, the protrusions are symmetrically distributed with the grooves, two adjacent furnace roof bricks are hung on two sides of the ceramic square beam through the right-angle steps, the lower parts of the adjacent furnace roof bricks are butted with the grooves through the protrusions, and the ceramic fiber fillers are arranged between the concave faces of the two furnace roof bricks.
2. The composite roof structure of a high temperature kiln according to claim 1, characterized in that: the ceramic square beam is a square hollow ceramic tube.
3. The composite roof structure of a high temperature kiln according to claim 1, characterized in that: the grooves are square grooves or arc grooves, and the shape of the protrusions is matched with that of the grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320637436.6U CN219693879U (en) | 2023-03-28 | 2023-03-28 | Composite furnace top structure of high-temperature kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320637436.6U CN219693879U (en) | 2023-03-28 | 2023-03-28 | Composite furnace top structure of high-temperature kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219693879U true CN219693879U (en) | 2023-09-15 |
Family
ID=87943477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320637436.6U Active CN219693879U (en) | 2023-03-28 | 2023-03-28 | Composite furnace top structure of high-temperature kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219693879U (en) |
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2023
- 2023-03-28 CN CN202320637436.6U patent/CN219693879U/en active Active
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