CN215909653U - Kiln car for tunnel kiln - Google Patents
Kiln car for tunnel kiln Download PDFInfo
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- CN215909653U CN215909653U CN202122379080.4U CN202122379080U CN215909653U CN 215909653 U CN215909653 U CN 215909653U CN 202122379080 U CN202122379080 U CN 202122379080U CN 215909653 U CN215909653 U CN 215909653U
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Abstract
The utility model discloses a kiln car for a tunnel kiln, which comprises a kiln car main body and sand seal plates, wherein the kiln car main body comprises a kiln car framework, the middle parts of the sand seal plates are fixed at the two sides of the kiln car framework, refractory bricks are respectively fixed at the positions, close to the inner sides of the sand seal plates at each side, on the kiln car framework, the refractory bricks are sequentially arranged along the moving direction of the kiln car, a refractory heat-insulating layer is arranged between the refractory bricks at the two sides of the kiln car framework, and sealing heat-insulating layers are filled between the bottom surface of the refractory bricks and the upper surface of the kiln car framework and between the refractory bricks and the sand seal plates. The utility model can prevent high-temperature gas in the kiln from flowing into the lower part from the upper part of the kiln car and prevent moving devices such as wheels, rails and the like of the wall kiln car from being damaged by arranging the refractory bricks and the refractory heat-insulating layer on the kiln car framework, and the kiln car framework is not in direct contact with the high-temperature gas in the kiln by sealing the heat-insulating layer, thereby preventing the thermal expansion deformation and the thermal oxidation erosion of the kiln car framework caused by the high temperature in the kiln. Therefore, the kiln car for the tunnel kiln has the advantages of strong fire resistance, high heat sealability and long service cycle.
Description
Technical Field
The utility model relates to a kiln car for a tunnel kiln, and belongs to the technical field of refractory materials.
Background
Tunnel cave wide application in refractory material manufacturing enterprise, the kiln car is the key equipment that the tunnel cave was used, the kiln car includes kiln car main part and sand shrouding, the kiln car main part includes the kiln car framework, the sand shrouding is fixed in kiln car framework both sides position, because kiln car framework and sand shrouding comprise foundry goods or steel iron plate, be the structure with the interior high-temperature gas direct contact of tunnel cave, it is often in under the high temperature atmosphere, if can not stand deformation and the erosion of thermal oxidation that arouses because of the thermal energy, after the certain time, kiln car leakproofness can sharply reduce with the durability.
Once the kiln car quality is poor, hold in the palm the damage of brick board, and then can damage the kiln main part, mobile devices such as kiln bed, kiln car wheel and kiln rail in the kiln car constitution also can receive the damage. When the heat sealing performance of the sand sealing plate is deteriorated, high-temperature gas in the kiln flows into the lower part of the kiln car through a gap between the kiln wall and the side wall of the kiln car, so that the temperature distribution in the kiln is uneven, the sintering unevenness of a sintered material is increased, cold cracking is caused, and the product quality is reduced. Also, wheels and kiln rails are often damaged.
Disclosure of Invention
The utility model aims to provide a kiln car for a tunnel kiln, which has strong fire resistance, high heat sealability and long service cycle and is used for solving the technical problem of low durability of the kiln car in the prior art.
The utility model adopts the following technical scheme: the utility model provides a kiln car for tunnel kiln, includes kiln car main part and sand shrouding, and the kiln car main part includes the kiln car framework, and the middle part of sand shrouding is fixed in kiln car framework both sides position, the inboard position that is close to every side sand shrouding on the kiln car framework is fixed with resistant firebrick respectively, and resistant firebrick arranges in proper order along kiln car moving direction, is equipped with fire-resistant insulating layer between the resistant firebrick of both sides of kiln car framework, and it has sealed insulating layer all to fill between resistant firebrick bottom surface and the kiln car framework upper surface, resistant firebrick and the sand shrouding.
The bottom of the refractory brick is provided with a positioning bottom groove, the upper surface of the kiln car frame is provided with a positioning bulge inserted into the positioning bottom groove, and a sealing heat-insulating layer is filled between the positioning bottom groove and the positioning bulge.
The sealing and heat-insulating layer is a fiber blanket.
The top of the refractory brick is higher than the top of the sand seal plate, a groove is formed in the position, higher than the top of the sand seal plate, of the outer side face of the refractory brick, and the groove extends in the moving direction of the kiln car and is matched with the convex part on the side wall of the tunnel kiln.
The sand seal plate comprises more than two sand seal plate units which are butted together along the moving direction of the kiln car.
The sand seal plate is a steel plate with a fire-resistant ceramic layer on the surface.
The sand sealing plate is provided with a through hole, an L-shaped connecting piece is arranged between the sand sealing plate and the kiln car framework, one end of the L-shaped connecting piece is welded on the bottom surface of the kiln car framework, and the other end of the L-shaped connecting piece is fixedly connected with the sand sealing plate through a bolt penetrating through the through hole.
The refractory heat-insulating layer is flush with the upper surface of the refractory brick.
The utility model has the beneficial effects that: the fireproof bricks and the fireproof heat-insulating layer are arranged on the kiln car frame, so that high-temperature gas in the kiln can be prevented from flowing into the lower part from the upper part of the kiln car, and moving devices such as wheels of the kiln car, kiln rails and the like on the wall surface are prevented from being damaged; the sealing and heat-insulating layers are filled between the bottom surface of the refractory brick and the upper surface of the kiln car framework and between the refractory brick and the sand sealing plate, so that the kiln car framework is not in direct contact with high-temperature gas in the kiln, and the thermal expansion deformation and thermal oxidation erosion of the kiln car framework caused by high temperature in the kiln can be prevented. Therefore, the kiln car for the tunnel kiln has the advantages of strong fire resistance, high heat sealability and long service cycle.
Preferably, the positioning bottom groove on the bottom surface of the refractory brick is matched with the positioning protrusion on the kiln car frame, the positioning effect is achieved on the installation of the refractory brick, the refractory brick can be prevented from shifting when the kiln car moves, and the sealing heat insulation layer between the positioning bottom groove and the positioning protrusion further achieves the sealing heat insulation effect.
Preferably, the sealing and heat insulating layer is a fiber blanket, and has the characteristics of fire resistance, flame retardance and good sealing property.
Preferably, the grooves on the outer side surface of the refractory bricks can be matched with the protrusions on the wall surface of the tunnel kiln, so that the movement of the kiln car is guided.
Preferably, the sand seal board is formed by a plurality of sand seal board unit butt joints, when sand seal board partial damage leads to the sand seal board leakproofness to reduce, can continue to operate the kiln, also is convenient for change the sand seal board unit of damage during the maintenance.
Preferably, the sand shrouding has the fire-resistant ceramic layer for the surface to make the fire resistance of sand shrouding higher.
Preferably, the sand sealing plate is detachably connected with the kiln car framework through the L-shaped connecting piece and the bolts, so that the sand sealing plate can be maintained and replaced conveniently.
Preferably, the refractory heat insulating layer is flush with the upper surface of the refractory bricks without affecting the flatness of the kiln bed.
Drawings
Fig. 1 is a schematic structural view of a kiln car for a tunnel kiln according to an embodiment of the present invention;
fig. 2 is a schematic side view of the kiln car for a tunnel kiln of fig. 1.
In the figure: the method comprises the following steps of 1-kiln car main body, 2-kiln car frame, 21-positioning protrusion, 3-sand seal plate, 31-sand seal plate unit, 4-refractory brick, 41-groove, 5-refractory heat insulation layer, 6-sealing heat insulation layer, 7-L-shaped connecting piece and 71-bolt.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
The kiln car for the tunnel kiln in the embodiment of the utility model is shown in fig. 1-2, and comprises a kiln car main body 1 and sand seal plates 3, wherein the kiln car main body 1 comprises a kiln car frame 2, the middle parts of the sand seal plates 3 are fixed at two sides of the kiln car frame 2, refractory bricks 4 are respectively fixed at positions on the kiln car frame 2 close to the inner sides of the sand seal plates 3 at each side, the refractory bricks 4 are sequentially arranged along the moving direction of the kiln car, a refractory heat insulation layer 5 is arranged between the refractory bricks 4 at two sides of the kiln car frame 2, and a seal heat insulation layer 6 is respectively filled between the bottom surface of the refractory bricks 4 and the upper surface of the kiln car frame 2 and between the refractory bricks 4 and the sand seal plates 3.
The bottom of the refractory brick 4 is provided with a positioning bottom groove, the upper surface of the kiln car frame 2 is provided with a positioning bulge 21 inserted into the positioning bottom groove, and a sealing heat-insulating layer 6 is also filled between the positioning bottom groove and the positioning bulge 21. In this embodiment, the sealing and heat insulating layer is a fiber blanket.
The top of the refractory brick 4 is higher than the top of the sand seal plate 3, a groove 41 is formed in the position, higher than the top of the sand seal plate 3, of the outer side face of the refractory brick 4, and the groove 41 extends in the moving direction of the kiln car and is matched with a convex part on the side wall of the tunnel kiln. The refractory heat insulation layer 5 is flush with the upper surface of the refractory bricks 4.
The sand seal plate 3 comprises more than two sand seal plate units 31 which are butted together along the moving direction of the kiln car, and the sand seal plate 3 is a steel plate with a refractory ceramic layer on the surface. The sand seal plate 3 is provided with a through hole, an L-shaped connecting piece 7 is arranged between the sand seal plate 3 and the kiln car frame 2, one end of the L-shaped connecting piece 7 is welded on the bottom surface of the kiln car frame 2, and the other end of the L-shaped connecting piece is fixedly connected with the sand seal plate 3 through a bolt 71 penetrating through the through hole.
When the kiln car is installed, a fireproof heat insulation layer is arranged in the middle position above a kiln car framework, refractory bricks are arranged at two side positions above the kiln car framework, positioning protrusions on the kiln car framework are embedded with positioning bottom grooves on the refractory bricks to achieve positioning of the refractory bricks, sliding of the refractory bricks is prevented, sealing heat insulation layers are filled between the bottom surface of the refractory bricks and the upper surface of the kiln car framework, between the refractory bricks and sand seal plates and between the positioning bottom grooves and the positioning protrusions, then sand seal plates are fixed at two side positions of the kiln car framework through bolts, all the sand seal plate units are butted together to form a complete sand seal plate, the refractory bricks and the fireproof heat insulation layer on the kiln car framework can prevent high-temperature gas in a kiln from flowing into the lower part from the upper part of the kiln car, and moving devices such as wall-surface kiln car wheels and kiln rails are damaged; the sealed heat-insulating layer can prevent the kiln car framework from directly contacting with high-temperature gas in the kiln, and can prevent the thermal expansion deformation and thermal oxidation erosion of the kiln car framework caused by high temperature in the kiln.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should be construed as the protection scope of the present invention.
Claims (8)
1. The utility model provides a kiln car for tunnel cave, includes kiln car main part and sand shrouding, and the kiln car main part includes the kiln car framework, and the middle part of sand shrouding is fixed in kiln car framework both sides position, its characterized in that: the kiln car framework is provided with a sand seal plate, the sand seal plate is arranged on the upper surface of the kiln car framework, the inner side position of the sand seal plate on each side of the kiln car framework is respectively fixed with refractory bricks, the refractory bricks are sequentially arranged along the moving direction of the kiln car, a refractory insulating layer is arranged between the refractory bricks on two sides of the kiln car framework, and a sealing insulating layer is filled between the bottom surface of the refractory bricks and the upper surface of the kiln car framework and between the refractory bricks and the sand seal plate.
2. The kiln car for a tunnel kiln as defined in claim 1, wherein: the bottom of the refractory brick is provided with a positioning bottom groove, the upper surface of the kiln car frame is provided with a positioning bulge inserted into the positioning bottom groove, and a sealing heat-insulating layer is filled between the positioning bottom groove and the positioning bulge.
3. The kiln car for a tunnel kiln as defined in claim 2, wherein: the sealing and heat-insulating layer is a fiber blanket.
4. The kiln car for a tunnel kiln as defined in claim 1, wherein: the top of the refractory brick is higher than the top of the sand seal plate, a groove is formed in the position, higher than the top of the sand seal plate, of the outer side face of the refractory brick, and the groove extends in the moving direction of the kiln car and is matched with the convex part on the side wall of the tunnel kiln.
5. The kiln car for a tunnel kiln as defined in claim 1, wherein: the sand seal plate comprises more than two sand seal plate units which are butted together along the moving direction of the kiln car.
6. The kiln car for a tunnel kiln as defined in claim 1, wherein: the sand seal plate is a steel plate with a fire-resistant ceramic layer on the surface.
7. The kiln car for a tunnel kiln as defined in claim 1, wherein: the sand sealing plate is provided with a through hole, an L-shaped connecting piece is arranged between the sand sealing plate and the kiln car framework, one end of the L-shaped connecting piece is welded on the bottom surface of the kiln car framework, and the other end of the L-shaped connecting piece is fixedly connected with the sand sealing plate through a bolt penetrating through the through hole.
8. The kiln car for a tunnel kiln as defined in claim 1, wherein: the refractory heat-insulating layer is flush with the upper surface of the refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122379080.4U CN215909653U (en) | 2021-09-29 | 2021-09-29 | Kiln car for tunnel kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122379080.4U CN215909653U (en) | 2021-09-29 | 2021-09-29 | Kiln car for tunnel kiln |
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| Publication Number | Publication Date |
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| CN215909653U true CN215909653U (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122379080.4U Active CN215909653U (en) | 2021-09-29 | 2021-09-29 | Kiln car for tunnel kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143766A (en) * | 2022-06-30 | 2022-10-04 | 重庆安都陶瓷有限公司 | Control system and method for pottery pot firing kiln |
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2021
- 2021-09-29 CN CN202122379080.4U patent/CN215909653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143766A (en) * | 2022-06-30 | 2022-10-04 | 重庆安都陶瓷有限公司 | Control system and method for pottery pot firing kiln |
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