CN215983899U - Furnace structure of push plate type tunnel resistance furnace - Google Patents
Furnace structure of push plate type tunnel resistance furnace Download PDFInfo
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- CN215983899U CN215983899U CN202122445588.XU CN202122445588U CN215983899U CN 215983899 U CN215983899 U CN 215983899U CN 202122445588 U CN202122445588 U CN 202122445588U CN 215983899 U CN215983899 U CN 215983899U
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Abstract
The utility model discloses a hearth structure of a push plate type tunnel resistance furnace, which comprises a heat insulation layer, a left wedge-shaped cover plate, a convex top brick, a concave top brick, a right wedge-shaped cover plate, a left corner brick, a right corner brick, a burning bearing plate, an upper heating rod, a left upper wall brick, a right upper wall brick, a left lower wall brick, a right lower wall brick, a track plate, a left supporting brick, a right supporting brick, a push plate, a hearth body and a lower heating rod, wherein the left lower wall brick is fixed on the outer side of the left supporting brick; a right lower wall brick is fixed on the outer side of the right supporting brick; the upper end of the left lower wall brick is fixedly connected with a left upper wall brick; and the upper end of the right lower wall brick is fixedly connected with a right upper wall brick. The novel beneficial effects are that the temperature difference in the furnace is small, the electric furnace is not easy to collapse and damage, and the sintering atmosphere is more uniform.
Description
Technical Field
The utility model relates to the field of push plate type tunnel resistance furnaces, in particular to a hearth structure of a push plate type tunnel resistance furnace.
Background
When any ceramic is manufactured, sintering is the most important process, the ceramic cannot be real ceramic when sintering is not good, the temperature uniformity and the environment atmosphere in the furnace are all important factors influencing sintering, the structure of a hearth is also an important factor influencing the temperature, the uniformity and the atmosphere, and the electronic functional ceramic has higher requirements on sintering, but the structure of the current tunnel type resistance furnace is as follows: the electronic ceramic products to be sintered are stacked to a certain height and are positioned in the middle of a hearth, the upper part of each product is an upper heating cavity and consists of a heat source heating rod, a flat top cover plate and wall bricks, the left side and the right side of each product are the wall bricks, the lower part of each product is a burning bearing plate and is placed on a push plate together, a track plate is arranged below the push plate, and the lower heating cavity is positioned below the track plate and consists of a heat source silicon carbon rod, a bottom brick and the wall bricks. Such a structure has some drawbacks: 1. the temperature born by the product is uneven from top to bottom, the upper part of the product is radiated by the upper heating strong heat source, and the lower part of the product can be transmitted to the product after the heat source of the lower heating cavity heats the track plate, the push plate and the burning plate. 2. Wall brick and track board are pasted and are died, and the whole airtight structure of lower heating chamber only has conduction heat, does not have the convection heat, and lower heating chamber often need heat to the temperature higher than the product sintering just can make the product sintering, and long-term high temperature can make the lower heating chamber sink and cause the accident. 3. The top of the upper heating cavity is of a flat-top structure, the high-temperature sintering time is long, and the cover plate is easy to crack and break to cause furnace top collapse and damage. 4. The flat-top structure has small space and is not beneficial to the full discharge of volatile matters in the product. 5. The track plate is used as a bearing plate of a product and is only supported by a small step on the side surface of the wall brick, so that the track plate is easy to be broken under high temperature for a long time, and the supporting step is also easy to be broken to cause furnace collapse and furnace blockage accidents.
Therefore, it is necessary to design a hearth structure of the push plate type tunnel resistance furnace, which has small temperature difference in the furnace, is not easy to collapse and damage the electric furnace and has more uniform sintering atmosphere.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hearth structure of a push plate type tunnel resistance furnace, which can solve the problems in the background technology.
The utility model provides a hearth structure of a push plate type tunnel resistance furnace, which comprises a heat insulation layer, a left wedge-shaped cover plate, a convex top brick, a concave top brick, a right wedge-shaped cover plate, a left corner brick, a right corner brick, a burning bearing plate, an upper heating rod, a left upper wall brick, a right upper wall brick, a left lower wall brick, a right lower wall brick, a track plate, a left supporting brick, a right supporting brick, a push plate, a hearth body and a lower heating rod, wherein the left lower wall brick is fixed on the outer side of the left supporting brick; a right lower wall brick is fixed on the outer side of the right supporting brick; the upper end of the left lower wall brick is fixedly connected with a left upper wall brick; the upper end of the right lower wall brick is fixedly connected with a right upper wall brick; an upper heating rod is arranged between the right upper wall brick and the left upper wall brick; a lower layer heating rod is arranged among the left lower wall brick, the right lower wall brick, the left supporting brick and the right supporting brick; the upper end of the left upper wall brick is fixedly connected with a left corner brick; the upper end of the right upper wall brick is fixedly connected with a right angle brick; a convex top brick and a concave top brick are arranged between the left corner brick and the right corner brick; a left wedge-shaped cover plate is fixedly connected between the left corner brick and the convex top brick; a right wedge-shaped cover plate is fixed between the right corner brick and the concave top brick; an insulating layer is arranged in the hearth body; a track plate is arranged between the left supporting brick and the right supporting brick; and a push plate is arranged on the track plate.
Preferably, the convex top brick is embedded and meshed with the concave top brick; and the convex crown brick and the concave crown brick form a herringbone crown included angle of 150 degrees after being matched; the convex top brick and the concave top brick are made of 80 corundum mullite materials; and the thickness of the convex top brick and the concave top brick is 55-75 mm.
Preferably, the left corner brick and the right corner brick are made of 80 corundum mullite materials; and the thickness of the left corner brick and the right corner brick is 60-80 mm.
Preferably, the left upper wall brick, the right upper wall brick, the left lower wall brick and the right lower wall brick are all made of 80 corundum mullite materials; and the thicknesses of the left upper wall brick, the right upper wall brick, the left lower wall brick and the right lower wall brick are 55-75 mm.
Preferably, the track slab is made of 90 corundum mullite; and the thickness of the track plate is 30-40 mm.
Preferably, the left brick and the right brick are made of 80 corundum mullite materials; the thickness of the left brick and the right brick is 20-40 mm; the upper ends of the left and right bricks are raised; the width of the convex part is 20-40 mm.
Preferably, the push plate is made of 90 corundum mullite material; and the thickness of the push plate is 25-40 mm.
Preferably, the right wedge-shaped cover plate and the left wedge-shaped cover plate are made of light mullite; and the thickness of the right wedge-shaped cover plate and the left wedge-shaped cover plate is 130 mm.
Preferably, the upper heating rod and the lower heating rod are not limited to silicon carbide heating elements, silicon carbide rods, ceramic heating rods made of nickel-chromium alloy and iron-chromium-aluminum alloy, and quartz tube heating rods.
Preferably, the push plate is provided with a burning bearing plate for bearing a product to be burnt.
The utility model has the following beneficial effects:
1. in the hearth structure of the push plate type tunnel resistance furnace, a convex top brick and a concave top brick are arranged between a left corner brick and a right corner brick; the convex top brick is embedded and meshed with the concave top brick; and the convex crown brick and the concave crown brick form a herringbone crown included angle of 150 degrees after being matched; the convex top brick and the concave top brick are made of 80 corundum mullite materials; the thickness of the convex top brick and the concave top brick is 55-75 mm; the furnace top of the hearth body adopts a herringbone top supporting structure formed by convex top bricks and concave top bricks, the force is dispersed and conducted to two sides through the left corner bricks and the right corner bricks after being stressed, structural bodies are arranged at two sides to form supporting force to prevent the furnace top from being stressed and collapsed at high temperature, and the furnace top adopts the herringbone top structure formed by the convex top bricks and the concave top bricks, so that a product to be fired and the furnace top have enough space, and the decomposition and the discharge of organic matters in the product are facilitated.
2. In the hearth structure of the push plate type tunnel resistance furnace, a left lower wall brick is fixed on the outer side of a left supporting brick; a right lower wall brick is fixed on the outer side of the right supporting brick; the upper end of the left lower wall brick is fixedly connected with a left upper wall brick; the upper end of the right lower wall brick is fixedly connected with a right upper wall brick; an upper heating rod is arranged between the right upper wall brick and the left upper wall brick; a lower layer heating rod is arranged among the left lower wall brick, the right lower wall brick, the left supporting brick and the right supporting brick; lower floor's heating rod and upper heating rod independent installation are measured and are controlled, in case the difference in temperature appears from top to bottom in the product, can adjust upper strata or lower floor's temperature alone and make the product sintering time be heated more evenly, adopt a left side brick and a right side brick to make upper left wall brick, upper right wall brick, wall brick under a left side, leave the space between wall brick and the track board down in the right side and form the air flue, lower floor's heating rod is through convection current mode heating product, sintering temperature is more even, avoid down the super temperature of heating chamber to cause and sink, adopt a left side brick, a right side brick, track board area of contact is bigger, prevent that the track board from softening under the high temperature and splitting and sink.
Drawings
Fig. 1 is a schematic structural diagram of a hearth structure of a push plate type tunnel resistance furnace provided by the utility model.
Description of reference numerals: 1-an insulating layer; 2-a left wedge-shaped cover plate; 3-convex top brick; 4-concave top brick; 5-right wedge-shaped cover plate; 6-left corner brick; 7-right angle brick; 8-baking plate; 9-upper heating rod; 10-left upper wall brick; 11-right upper wall brick; 12-left lower wall tile; 13-right lower wall brick; 14-a track slab; 15-left brick; 16-right brick; 17-a push plate; 18-a hearth body; 19-lower heating rod.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
The hearth structure of the push plate type tunnel resistance furnace provided by the embodiment of the utility model comprises a heat-insulating layer 1, a left wedge-shaped cover plate 2, a convex top brick 3, a concave top brick 4, a right wedge-shaped cover plate 5, a left corner brick 6, a right corner brick 7, a burning bearing plate 8, an upper heating rod 9, a left upper wall brick 10, a right upper wall brick 11, a left lower wall brick 12, a right lower wall brick 13, a track plate 14, a left supporting brick 15, a right supporting brick 16, a push plate 17, a hearth body 18 and a lower heating rod 19, wherein a left lower wall brick 12 is fixed on the outer side of the left supporting brick 15; a right lower wall brick 13 is fixed on the outer side of the right supporting brick 16; the upper end of the left lower wall brick 12 is fixedly connected with a left upper wall brick 10; the upper end of the right lower wall brick 13 is fixedly connected with a right upper wall brick 11; an upper heating rod 9 is arranged between the right upper wall brick 11 and the left upper wall brick 10; a lower layer heating rod 19 is arranged among the left lower wall brick 12, the right lower wall brick 13, the left supporting brick 15 and the right supporting brick 16; the upper end of the left upper wall brick 10 is fixedly connected with a left corner brick 6; the upper end of the right upper wall brick 11 is fixedly connected with a right angle brick 7; a convex top brick 3 and a concave top brick 4 are arranged between the left corner brick 6 and the right corner brick 7; a left wedge-shaped cover plate 2 is fixedly connected between the left corner brick 6 and the convex top brick 3; a right wedge-shaped cover plate 5 is fixed between the right corner brick 7 and the concave top brick 4; an insulating layer 1 is arranged in the hearth body 18; a track plate 14 is arranged between the left supporting brick 15 and the right supporting brick 16; the track plate 14 is provided with a push plate 17.
In this embodiment, the convex top brick 3 and the concave top brick 4 are embedded and occluded; and the convex top brick 3 and the concave top brick 4 form a herringbone top included angle of 150 degrees after being matched; the convex top bricks 3 and the concave top bricks 4 are made of 80 corundum mullite materials; and the thickness of the convex top brick 3 and the concave top brick 4 is 55-75 mm.
In this embodiment, the left corner brick 6 and the right corner brick 7 are made of 80 corundum mullite material; and the thickness of the left corner brick 6 and the right corner brick 7 is 60-80 mm.
In this embodiment, the left upper wall brick 10, the right upper wall brick 11, the left lower wall brick 12 and the right lower wall brick 13 are all made of 80 corundum mullite material; and the thicknesses of the left upper wall brick 10, the right upper wall brick 11, the left lower wall brick 12 and the right lower wall brick 13 are 55-75 mm.
In this embodiment, the track slab 14 is made of 90 corundum mullite; and the thickness of the track plate 14 is 30-40 mm.
In this embodiment, the left brick 15 and the right brick 16 are made of 80 corundum mullite material; the thicknesses of the left brick 15 and the right brick 16 are 20-40 mm; the upper ends of the left brick 15 and the right brick 16 are raised; the width of the convex part is 20-40 mm.
In this embodiment, the push plate 17 is made of 90 corundum mullite; and the thickness of the push plate 17 is 25-40 mm.
In the embodiment, the right wedge-shaped cover plate 5 and the left wedge-shaped cover plate 2 are made of light mullite; and the thickness of the right wedge-shaped cover plate 5 and the left wedge-shaped cover plate 2 is 130 mm.
In this embodiment, the upper heating rod 9 and the lower heating rod 19 are not limited to silicon carbide heating elements, ceramic heating rods made of nichrome and iron-chromium-aluminum alloy, and quartz tube heating rods.
In this embodiment, the push plate 17 is provided with a burning plate 8 for bearing a product to be burned.
The working principle is as follows: the contact surfaces of the convex-top bricks 3 and the concave-top bricks 4 are embedded and occluded by adopting a concave-convex structure and are firmly matched, the left wedge-shaped cover plate 2 and the right wedge-shaped cover plate 5 play roles in heat insulation and heat preservation, and are the transition from a hearth body 18 to a heat preservation layer 1, the left corner bricks 6 and the right corner bricks 7 transmit the supporting force born by the convex-top bricks 3 and the concave-top bricks 4 to the two sides of the hearth body 18 to form supports, and are simultaneously occluded with the left upper wall bricks 10 and the right upper wall bricks 11 to prevent the left upper wall bricks 10 and the right upper wall bricks 11 from collapsing towards the middle part of the hearth body 18, the left upper wall bricks 10 and the right upper wall bricks 11 play roles in supporting the left corner bricks 6, the right corner bricks 7, the convex-top bricks 3 and the concave-top bricks 4 and are also the left side wall and the right side wall of the hearth body 18, the upper heating rod 9 is responsible for providing a heat source of an upper heating cavity, the left lower wall bricks 12 and the right lower wall bricks 13 are the bearing foundation of the left upper wall bricks 10, the right upper wall bricks 11, the left upper wall bricks 6, the right corner bricks 7, the right upper wall bricks, the left corner bricks 6, the right corner bricks 7, the right corner bricks 3 and the concave-top bricks 4, the upper wall bricks 10 and the right upper wall bricks 11 are prevented from toppling over the hearth body 18 after being meshed with the left lower wall bricks 12 and the right lower wall bricks 13, the left supporting bricks 15 and the right supporting bricks 16 play a role in supporting the track plate 14, the push plate 17 and the burning plate 8, the protruding parts of the left supporting bricks 15 and the right supporting bricks 16 separate the left upper wall bricks 10, the right upper wall bricks 11, the left lower wall bricks 12, the right lower wall bricks 13 and the track plate 14 to form an air duct, namely heat of a lower heating cavity, the heat of the lower heating cavity is easily conducted in a convection mode, the temperature of the hearth body 18 is more uniform, the lower heating cavity is not sealed and has no hidden danger of overtemperature collapse, the lower heating rod 19 is responsible for providing a heat source of the lower heating cavity, the track plate 14 is not only the bottom of the hearth body 18 but also a track for the push plate 17 to travel on the track plate 14 under the thrust effect, and the push plate 17 bears the burning plate 8 to travel on the track plate 14.
The technical effects are as follows: in the hearth structure of the push plate type tunnel resistance furnace, a convex top brick 3 and a concave top brick 4 are arranged between a left corner brick 6 and a right corner brick 7; the convex top brick 3 and the concave top brick 4 are embedded and occluded; and the convex top brick 3 and the concave top brick 4 form a herringbone top included angle of 150 degrees after being matched; the convex top brick 3 and the concave top brick 4 are made of 80 corundum mullite materials; the thickness of the convex top brick 3 and the concave top brick 4 is 55-75 mm; the furnace top of the hearth body 18 adopts a herringbone top supporting structure consisting of convex top bricks 3 and concave top bricks 4, the force is dispersed and conducted to two sides through left corner bricks 6 and right corner bricks 7 after being stressed, structural bodies are arranged on two sides to form supporting force to prevent the furnace top from being stressed and collapsed at high temperature, and the furnace top adopts the herringbone top structure consisting of the convex top bricks 3 and the concave top bricks 4, so that the product to be fired and the furnace top have enough space, and the decomposition and the discharge of organic matters in the product are facilitated. In the hearth structure of the push plate type tunnel resistance furnace, a left lower wall brick 12 is fixed on the outer side of a left supporting brick 15; a right lower wall brick 13 is fixed on the outer side of the right supporting brick 16; the upper end of the left lower wall brick 12 is fixedly connected with a left upper wall brick 10; the upper end of the right lower wall brick 13 is fixedly connected with a right upper wall brick 11; an upper heating rod 9 is arranged between the right upper wall brick 11 and the left upper wall brick 10; a lower layer heating rod 19 is arranged among the left lower wall brick 12, the right lower wall brick 13, the left supporting brick 15 and the right supporting brick 16; lower floor heating rod 19 and upper heating rod 9 independently install measurement and control, in case the difference in temperature appears from top to bottom in the product, can adjust upper strata alone or lower floor's temperature makes the product sintering time be heated more evenly, adopt left brick 15 and right brick 16 to make left upper wall brick 10, right upper wall brick 11, left lower wall brick 12, leave the space between right lower wall brick 13 and the track board 14 and form the air flue, lower floor heating rod 19 heats the product through the convection current mode, sintering temperature is more even, avoid heating chamber super temperature down to cause and sink, adopt left brick 15, right brick 16, track board 14 area of contact is bigger, prevent that track board 14 high temperature from softening splitting from sinking.
The above disclosure is only for the specific embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (10)
1. The utility model provides a furnace structure of push pedal formula tunnel resistance stove which characterized in that: the brick comprises a heat-insulating layer (1), a left wedge-shaped cover plate (2), a convex top brick (3), a concave top brick (4), a right wedge-shaped cover plate (5), a left corner brick (6), a right corner brick (7), a burning bearing plate (8), an upper heating rod (9), a left upper wall brick (10), a right upper wall brick (11), a left lower wall brick (12), a right lower wall brick (13), a track plate (14), a left supporting brick (15), a right supporting brick (16), a push plate (17), a hearth body (18) and a lower heating rod (19), wherein the left lower wall brick (12) is fixed on the outer side of the left supporting brick (15); a right lower wall brick (13) is fixed on the outer side of the right supporting brick (16); the upper end of the left lower wall brick (12) is fixedly connected with a left upper wall brick (10); the upper end of the right lower wall brick (13) is fixedly connected with a right upper wall brick (11); an upper heating rod (9) is arranged between the right upper wall brick (11) and the left upper wall brick (10); a lower layer heating rod (19) is arranged among the left lower wall brick (12), the right lower wall brick (13), the left supporting brick (15) and the right supporting brick (16); the upper end of the left upper wall brick (10) is fixedly connected with a left corner brick (6); the upper end of the right upper wall brick (11) is fixedly connected with a right corner brick (7); a convex top brick (3) and a concave top brick (4) are arranged between the left corner brick (6) and the right corner brick (7); a left wedge-shaped cover plate (2) is fixedly connected between the left corner brick (6) and the convex top brick (3); a right wedge-shaped cover plate (5) is fixed between the right corner brick (7) and the concave roof brick (4); an insulating layer (1) is arranged in the hearth body (18); a track plate (14) is arranged between the left supporting brick (15) and the right supporting brick (16); and a push plate (17) is arranged on the track plate (14).
2. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the convex crown bricks (3) are engaged with the concave crown bricks (4) in an embedding manner; and the convex crown bricks (3) and the concave crown bricks (4) form a herringbone crown included angle of 150 degrees after being matched; the convex-top bricks (3) and the concave-top bricks (4) are made of 80 corundum mullite materials; and the thickness of the convex top brick (3) and the concave top brick (4) is 55-75 mm.
3. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the left corner brick (6) and the right corner brick (7) are made of 80 corundum mullite material; and the thickness of the left corner brick (6) and the right corner brick (7) is 60-80 mm.
4. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the left upper wall brick (10), the right upper wall brick (11), the left lower wall brick (12) and the right lower wall brick (13) are all made of 80 corundum mullite material; and the thicknesses of the left upper wall brick (10), the right upper wall brick (11), the left lower wall brick (12) and the right lower wall brick (13) are 55-75 mm.
5. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the track plate (14) is made of 90 corundum mullite; and the thickness of the track plate (14) is 30-40 mm.
6. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the left support brick (15) and the right support brick (16) are made of 80 corundum mullite material; the thickness of the left supporting brick (15) and the right supporting brick (16) is 20-40 mm; the upper ends of the left supporting brick (15) and the right supporting brick (16) are raised; the width of the convex part is 20-40 mm.
7. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the push plate (17) is made of 90 corundum mullite material; and the thickness of the push plate (17) is 25-40 mm.
8. The hearth structure of the push plate type tunnel resistance furnace according to claim 1, wherein the right wedge-shaped cover plate (5) and the left wedge-shaped cover plate (2) are made of light mullite; and the thickness of the right wedge-shaped cover plate (5) and the left wedge-shaped cover plate (2) is 130 mm.
9. The hearth structure of a push plate type tunnel resistance furnace according to claim 1, wherein the upper heating rod (9) and the lower heating rod (19) are not limited to silicon carbide heating elements and ceramic heating rods and quartz tube heating rods made of nichrome and iron-chromium-aluminum alloy.
10. The hearth structure of a push plate type tunnel resistance furnace according to claim 1, characterized in that the push plate (17) is provided with a burning bearing plate (8) for bearing products to be burned.
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| CN202122445588.XU CN215983899U (en) | 2021-10-11 | 2021-10-11 | Furnace structure of push plate type tunnel resistance furnace |
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| CN202122445588.XU CN215983899U (en) | 2021-10-11 | 2021-10-11 | Furnace structure of push plate type tunnel resistance furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777486A (en) * | 2022-04-05 | 2022-07-22 | 无锡中工智能装备有限公司 | High temperature furnace hearth structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777486A (en) * | 2022-04-05 | 2022-07-22 | 无锡中工智能装备有限公司 | High temperature furnace hearth structure |
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