CN218561610U - Enamel firing furnace - Google Patents
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- CN218561610U CN218561610U CN202221824786.5U CN202221824786U CN218561610U CN 218561610 U CN218561610 U CN 218561610U CN 202221824786 U CN202221824786 U CN 202221824786U CN 218561610 U CN218561610 U CN 218561610U
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Abstract
The utility model discloses an enamel firing furnace, it belongs to enamel sintering device technical field, and enamel firing furnace includes low temperature zone, high temperature zone and conveyor. The high-temperature area is at least partially positioned in the low-temperature area, and a first low-temperature area and a second low-temperature area are respectively arranged on two sides of the high-temperature area; the conveying device is arranged in the enamel firing furnace and can guide the conveyed piece to enter the high-temperature area through the first low-temperature area and the second low-temperature area in sequence and then move out of the high-temperature area through the second low-temperature area and the first low-temperature area in sequence. The utility model discloses can preheat the work piece that has the enamel glaze to the coating earlier in first low temperature district and second low temperature district, carry the work piece to the high temperature district after preheating the end in, enamel closely combines on the work piece, forms the product, can give off the heat after the product of carrying out from the high temperature district gets into second low temperature district and first low temperature district, keeps warm to the high temperature district, avoids the energy waste.
Description
Technical Field
The utility model relates to an enamel sintering device technical field especially relates to an enamel firing furnace.
Background
When the inner container of the water heater is enamel-produced, an enamel firing furnace is generally required.
In the prior art, as shown in fig. 1, an enamel firing furnace is U-shaped and includes a first low temperature zone 10, a high temperature zone 20 and a second low temperature zone 30 connected in sequence. A heating device is arranged in the high-temperature zone 20, and the internal temperature is above 800 ℃. When the water heater liner is subjected to enamel firing, the liner body coated with the enamel glaze is conveyed to the high-temperature region 20 through the first low-temperature region 10 by the conveying device, and the enamel glaze coated on the liner body is tightly combined with the liner body at the high temperature of 800 ℃, so that the enamel liner is formed.
However, in the prior art, since the temperature of the first low-temperature region 10 is lower than that of the high-temperature region 20, after the liner body suddenly enters the high-temperature region 20 from the first low-temperature region 10, the temperature rise speed of the liner body is too high, which results in poor quality of the enamel layer of the liner; after the enamel firing is finished, the inner container enters the second low-temperature area 30 from the high-temperature area 20, the temperature of the inner container is very high at the moment, and the inner container can enter the next procedure only by cooling the inner container by using a fan after coming out of the second low-temperature area 30, so that energy waste is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an enamel firing furnace to there is the extravagant technical problem of energy in the quality of the inner bag enamel layer that exists among the solution prior art is bad, the inner bag enamel layer course of working.
As the above conception, the utility model discloses the technical scheme who adopts is:
an enamel firing furnace comprising:
a low temperature zone;
the high-temperature area is at least partially positioned inside the low-temperature area, and a first low-temperature area and a second low-temperature area are respectively arranged on two sides of the high-temperature area;
and the conveying device is arranged in the enamel firing furnace and can guide the conveyed piece to enter the high-temperature area through the first low-temperature area and the second low-temperature area in sequence and then move out of the high-temperature area through the second low-temperature area and the first low-temperature area in sequence.
When the enamel firing furnace works, the high-temperature area is at least partially positioned in the low-temperature area, and the first low-temperature area and the second low-temperature area are respectively arranged on two sides of the high-temperature area in the low-temperature area, so that the high-temperature area can dissipate heat to the first low-temperature area and the second low-temperature area, when a workpiece coated with enamel glaze initially enters the enamel firing furnace, the workpiece is preheated in the first low-temperature area and the second low-temperature area, the workpiece is conveyed to the high-temperature area by the conveying device after preheating is finished, enamel is tightly combined on the workpiece in the high-temperature area to form a product, the product conveyed from the high-temperature area sequentially enters the second low-temperature area and the first low-temperature area after the product comes out of the high-temperature area, the temperature of the product just coming out of the high-temperature area is high, the heat can be dissipated to the second low-temperature area and the first low-temperature area, and the high-temperature area is insulated, so that energy waste is avoided. When the product is output from the enamel firing furnace after sequentially passing through the second low-temperature zone and the first low-temperature zone, the traveling path is longer, the heat dissipation time is longer, and the temperature is greatly reduced, so that the energy consumed by the fan for cooling the product can be saved.
Optionally, the enamel firing furnace includes a high-temperature-region thermal insulation wall and a low-temperature-region thermal insulation wall, the high-temperature-region thermal insulation wall encloses the high-temperature region, and the low-temperature-region thermal insulation wall encloses the low-temperature region.
Arranging a high-temperature area heat-insulating wall to enclose a high-temperature area so as to ensure the heat-insulating effect of the high-temperature area; the low-temperature-zone heat-insulation wall is arranged and surrounded to form a low-temperature zone, so that the heat-insulation effect of the low-temperature zone is guaranteed, the preheating effect of a workpiece without an enamel layer is further guaranteed, and energy waste caused by too fast heat dissipation is avoided.
Optionally, the height of the high-temperature-zone heat-insulating wall is smaller than that of the low-temperature-zone heat-insulating wall, and the upper end cover of the high-temperature zone is provided with a high-temperature-zone top heat-insulating layer.
Ensuring that the heat emitted from the high-temperature area is fully positioned in the low-temperature area; the arrangement of the heat-insulating layer on the top of the high-temperature area avoids the influence on the enamel firing effect caused by excessive heat dissipation of the high-temperature area.
Optionally, the heat-insulating layer at the top of the high-temperature area is provided with a conveying device walking channel.
The conveyed piece can smoothly pass through the high-temperature area.
Optionally, the conveying device includes a conveying track, the conveying track includes an input track and an output track, free ends of the input track and the output track are both located in the first low-temperature region, and the other ends of the input track and the output track enter the high-temperature region via the second low-temperature region and are connected to each other.
The input track and the output track are arranged so that the conveying device can continuously run. When the products finished enamel firing are conveyed outwards along the output track, the products enter the second low-temperature region from the high-temperature region and are output from the enamel firing furnace after passing through the first low-temperature region; the workpiece coated with the enamel glaze and to be subjected to enamel firing sequentially passes through the first low-temperature region and the second low-temperature region along the conveying track and then enters the high-temperature region. In the first low-temperature region and the second low-temperature region, the temperature of a product subjected to enamel firing is higher, and the product can carry out heat radiation on a workpiece to be subjected to enamel firing, so that the preheating effect of the workpiece is improved.
Optionally, the low-temperature zone heat-insulating wall is arranged in a U shape and comprises a first low-temperature wall body, a second low-temperature wall body and a third low-temperature wall body which are sequentially connected; the high-temperature-region heat-insulation wall is arranged in a U shape and comprises a first high-temperature wall body, a second high-temperature wall body and a third high-temperature wall body which are sequentially connected, at least part of the first high-temperature wall body is arranged opposite to the first low-temperature wall body, at least part of the second low-temperature wall body is arranged opposite to the second high-temperature wall body, and at least part of the third low-temperature wall body is arranged opposite to the third high-temperature wall body.
The high-temperature area is at least partially positioned in the low-temperature area, and the formation of the first low-temperature area and the second low-temperature area is ensured.
Optionally, a connecting wall is connected between one end of the first high-temperature wall body, which is far away from the second high-temperature wall body, and one end of the third low-temperature wall body, which is far away from the second low-temperature wall body, so as to form a clip structure.
Due to the arrangement of the paper clip structure, only one inlet and outlet of the enamel firing furnace is provided, and the preheating of a workpiece is prevented from being influenced by excessive heat dissipation in a low-temperature region.
Optionally, the thickness of the high-temperature-region heat-insulating wall is greater than that of the low-temperature-region heat-insulating wall;
the thickness of the connecting wall body is the same as that of the high-temperature area heat-insulating wall; or alternatively
The thickness of the connecting wall body is the same as that of the low-temperature area heat-insulating wall.
The thickness of the connecting wall body is the same as that of the heat-insulating wall in the high-temperature area, so that the workpieces can stay in the high-temperature area for enough time, and the enamel processing quality is ensured; the thickness of the connecting wall body is the same as that of the low-temperature-region heat-insulating wall, and the processing cost can be reduced.
Optionally, the upper end cover of the low-temperature zone is provided with a low-temperature zone top insulating layer.
Avoid low temperature region heat loss, influence the preheating of work piece.
Optionally, heating elements are disposed on both sides of the conveying device in the high-temperature zone.
The molding quality of the enamel layer on the workpiece is ensured.
The utility model provides an enamel firing furnace when carrying to the enamel firing furnace in to the work piece that has enamel glaze in the coating, the work piece that has enamel glaze in the coating is as being carried the piece, is guided by conveyor, in getting into the high temperature area via first low temperature district, second low temperature district in proper order, shifts out via second low temperature district and first low temperature district in proper order from the high temperature area again.
Because the part of the high-temperature area, which is positioned in the low-temperature area, divides the low-temperature area into a first low-temperature area and a second low-temperature area, and the high-temperature area radiates heat, the first low-temperature area and the second low-temperature area have certain temperatures, when a workpiece enters the enamel firing furnace, the workpiece is preheated in the first low-temperature area and the second low-temperature area through the first low-temperature area and the second low-temperature area, and the preheating time is longer, so that the preheating effect is ensured; after preheating is finished, the workpiece enters a high-temperature area, and the phenomenon that the forming quality of an enamel layer is influenced by the fact that the temperature rising speed of the workpiece is too high is avoided.
The workpiece after enamel firing is a product, the temperature of the product is higher after the product comes out of the high-temperature area, the heat dissipation time of the workpiece is prolonged through the second low-temperature area and the first low-temperature area in sequence, the tapping temperature of the workpiece is reduced, the temperature difference between the workpiece and the ambient temperature is smaller, and the energy consumed by cooling of a fan is saved. Meanwhile, heat dissipated by the workpiece coming out of the high-temperature area is located in the first low-temperature area and the second low-temperature area, so that the temperature in the first low-temperature area and the temperature in the second low-temperature area are increased, the high-temperature area can be insulated, the workpiece which is newly entered into the low-temperature area and is not subjected to enamel sintering can be preheated and dried, and the enamel firing quality of the workpiece is further ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic view of a prior art enamel firing furnace;
fig. 2 is an elevation view of an enamel firing furnace provided by an embodiment of the present invention;
FIG. 3 isbase:Sub>A schematic view of one form of section A-A of FIG. 2;
fig. 4 isbase:Sub>A schematic view ofbase:Sub>A further alternative form of sectionbase:Sub>A-base:Sub>A in fig. 2.
In fig. 1:
10. a first low temperature zone; 20. a high temperature zone; 30. a second low temperature zone;
in fig. 2-4:
1. a low temperature zone insulation wall; 11. a first low temperature zone; 12. a second low temperature zone; 13. a first low temperature wall; 14. a second low temperature wall; 15. a third low temperature wall;
2. a high temperature zone insulation wall; 21. a high temperature zone; 22. a heat-insulating layer at the top of the high-temperature area; 221. a conveyor walking channel; 23. a first high temperature wall; 24. a second high temperature wall; 25. a third high temperature wall; 26. the top of the low temperature zone is provided with an insulating layer;
3. a conveying track;
4. a conveying device;
5. heat-sealing the board;
6. connecting the wall body;
7. a heating element.
Detailed Description
In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further explained below by means of specific embodiments in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At present, the inner container of the water storage type water heater is generally made of an enamel inner container. The manufacturing process of the enamel liner comprises the following steps: firstly, manufacturing a formed inner container body by using a metal substrate; then, one or more layers of enamel glaze are coated on the inner surface of the liner body, and the liner body coated with the enamel glaze can be tightly combined on the liner body only by being fired in a high-temperature furnace at the temperature of over 800 ℃. Optionally, the metal substrate is a steel plate. The high-temperature furnace is an enamel firing furnace.
Because the quality of the inner container enamel layer of the enamel firing furnace in the prior art is poor and the technical problem of energy waste exists in the processing process of the inner container enamel layer, referring to fig. 2-4, the embodiment provides the enamel firing furnace which can preheat a workpiece coated with enamel glaze, convey the workpiece into the high-temperature area 21 after preheating is finished, combine the enamel on the workpiece tightly to form a product, and the product conveyed out of the high-temperature area 21 can emit heat to preserve heat of the high-temperature area 21 and preheat the low-temperature area, thereby avoiding energy waste.
In the embodiment, the enamel firing furnace is used for enamel production of the enamel inner container of the water heater, the workpiece is an inner container body, and the product is the enamel inner container with enamel tightly combined with the inner container body.
Specifically, in the present embodiment, the enamel firing furnace includes a low temperature region, a high temperature region 21, and a conveying device 4.
The high temperature zone 21 is at least partially located inside the low temperature zone, and the first low temperature zone 11 and the second low temperature zone 12 are respectively located on both sides of the high temperature zone 21.
The conveying device 4 is arranged in the enamel firing furnace and can guide the conveyed piece to enter the high-temperature area 21 through the first low-temperature area 11 and the second low-temperature area 12 in sequence and then move out of the high-temperature area 21 through the second low-temperature area 12 and the first low-temperature area 11 in sequence.
Specifically, in the present embodiment, the conveying device 4 includes the conveying rail 3, the conveying rail 3 includes an input rail and an output rail, free ends of the input rail and the output rail are both located at the first low-temperature region 11, and the other ends of the input rail and the output rail are both entered into the high-temperature region 21 via the second low-temperature region 12 and are connected to each other. That is, the conveying track 3 is a double track, and the double track can realize the continuous conveying of a plurality of conveyed parts, so that the production efficiency is high. The lines with arrows in fig. 3 and 4 indicate the movement path of the conveyed member in the enamel firing furnace. It can be understood that, in fig. 3 and 4, the furnace inlet direction and the furnace outlet direction of the workpiece can be interchanged, and the selection is performed according to the requirements of the process layout.
When the enamel firing furnace provided by the embodiment conveys the workpiece coated with the enamel into the enamel firing furnace, the workpiece coated with the enamel is guided by the conveying track 3, enters the high temperature region 21 through the first low temperature region 11 and the second low temperature region 12 in sequence, and then is removed from the high temperature region 21 through the second low temperature region 12 and the first low temperature region 11 in sequence.
Because the part of the high-temperature area 21 positioned in the low-temperature area divides the low-temperature area into the first low-temperature area 11 and the second low-temperature area 12, the high-temperature area 21 radiates heat, so that the first low-temperature area 11 and the second low-temperature area 12 have certain temperatures, when a workpiece enters the enamel firing furnace, the workpiece firstly passes through the first low-temperature area 11 and the second low-temperature area 12 to be preheated and dried in the first low-temperature area 11 and the second low-temperature area 12, and because the walking path of the workpiece is tortuous, the preheating time is longer, and the preheating effect and the drying effect are ensured; after preheating is finished, the workpiece enters the high-temperature area 21, and the phenomenon that the forming quality of the enamel layer is influenced by the fact that the temperature rising speed of the workpiece is too high is avoided.
After the workpiece subjected to enamel firing comes out from the high-temperature area 21, the temperature of the workpiece is higher, the workpiece sequentially passes through the second low-temperature area 12 and the first low-temperature area 11, the heat dissipation time of the workpiece is prolonged, the tapping temperature of the workpiece is reduced, the temperature difference between the workpiece and the ambient temperature is smaller, and the energy consumed by cooling of a fan is saved. Meanwhile, the heat dissipated by the workpiece from the high-temperature area 21 is located in the first low-temperature area 11 and the second low-temperature area 12, the temperature in the first low-temperature area 11 and the temperature in the second low-temperature area 12 are increased, the high-temperature area 21 can be insulated, the workpiece which newly enters the low-temperature area and is not finished with enamel sintering can be preheated and dried, and the enamel firing quality of the workpiece is further ensured.
Generally, the process of coating enamel on the inner container of the water heater is a wet process enameling process, the inner container of the water heater needs to be dried after being coated with enamel glaze slurry, and the inner container of the water heater enters an enamel firing furnace after the drying is finished. After drying, the liner body is required to be completely dried without water stains; however, due to the influence of regions and climate, the drying effect after drying may not reach the drying standard easily, and if the drying effect is not ideal, the liner body enters the high temperature region 21 to be fired without being completely dried, which may affect the quality of enamel.
In this embodiment, after the drying is finished, the workpiece is preheated and dried in the first low-temperature region 11 and the second low-temperature region 12 before entering the high-temperature region 21, so as to ensure the drying effect.
Specifically, in the present embodiment, the enamel firing furnace includes a high-temperature-region heat-insulating wall 2 and a low-temperature-region heat-insulating wall 1. The high-temperature zone insulation wall 2 is surrounded to form a high-temperature zone 21, and the low-temperature zone insulation wall 1 is surrounded to form a low-temperature zone.
Specifically, in this embodiment, the thickness of the high-temperature-region thermal insulation wall 2 is greater than that of the low-temperature-region thermal insulation wall 1. The high-temperature area heat-insulating wall 2 has larger thickness and better heat-insulating capability, and avoids excessive heat dissipation in the high-temperature area 21.
Arranging a high-temperature zone heat-insulating wall 2 which encloses a high-temperature zone 21 to ensure the heat-insulating effect of the high-temperature zone 21; the low-temperature-region heat-insulation wall 1 is arranged to surround and form a low-temperature region, so that the heat-insulation effect of the low-temperature region is guaranteed, the preheating effect of a workpiece without an enamel layer is further guaranteed, and energy waste caused by too fast heat dissipation is avoided.
Specifically, in the present embodiment, the height of the high-temperature-region thermal insulation wall 2 is smaller than that of the low-temperature-region thermal insulation wall 1, so that the height of the high-temperature region 21 is smaller than that of the low-temperature region, and the heat dissipated from the high-temperature region 21 is ensured to be sufficiently located in the low-temperature region, thereby ensuring the preheating effect of the workpiece with the enamel layer formed in the low-temperature region. Meanwhile, the upper end cover of the high-temperature area 21 is provided with a high-temperature area top heat-insulating layer 22, so that the influence of excessive heat dissipation of the high-temperature area 21 on the enamel firing effect is avoided. By such an arrangement, the furnace top residual heat of the high temperature region 21 can be effectively utilized.
Further, in this embodiment, the top insulating layer 22 of the high temperature area is provided with a conveying device traveling channel 221, which ensures that the conveyed object, i.e., the workpiece, can smoothly pass through the high temperature area 21.
Preferably, the upper end cover of the low-temperature area is provided with a low-temperature area top heat preservation layer 26 to avoid heat loss of the low-temperature area.
Further, in this embodiment, the conveying device 4 further includes a conveying belt and a conveying chain. The conveyer belt sets up on transfer orbit 3, and the interval is provided with a plurality of conveying chain on the conveyer belt, and the upper end of each conveying chain is portable to be set up on transfer orbit 3, and the lower extreme can hang one and be carried the piece. Specifically, in the present embodiment, the transported member is a liner body. Specifically, the vertical setting of conveying chain, the inner bag body that the coating has enamel glaze hangs in the lower extreme of conveying chain, and the conveying chain is under the drive of conveyer belt, and follow delivery track 3 and walk in the enamel firing stove in succession, and the back is come out from the enamel firing stove to the inner bag body, and the enamel work of inner bag body is accomplished promptly.
Preferably, in order to avoid the heat in the high temperature region 21 from overflowing from the conveyor traveling path 221 seriously, in this embodiment, the heat sealing plate 5 is disposed on the portion of the conveyor 4 higher than the conveyor traveling path 221. Specifically, the portion of the conveyor chain higher than the conveyor running path 221 is provided with a heat seal plate 5. The projection along the vertical direction, the projection of the heat sealing plate 5 can cover the conveying device walking channel 221, and the hot air in the high-temperature area 21 is prevented from overflowing greatly, so that excessive heat loss in the high-temperature area 21 is avoided.
Specifically, in this embodiment, the heat sealing plate 5 is a fish scale plate.
Specifically, the heating element 7 is disposed in the high-temperature region 21 to ensure that the temperature in the high-temperature region 21 can reach 800 ℃. Preferably, the temperature of the high temperature zone 21 is 860 ℃ or higher.
Preferably, in the high temperature zone 21, both sides of the conveyor 4 are provided with heating elements 7. When the conveyed piece is suspended at the lower end of the conveying device 4 and moves along with the conveying device 4, heating elements 7 are arranged on two sides of the conveyed piece, and enamel forming quality of the conveyed piece is guaranteed. In particular, in the high temperature zone 21, the sides of the conveyor chain are each provided with a heating element 7.
Alternatively, in the present embodiment, the heating element 7 is a resistance band or a heat radiation tube.
Specifically, referring to fig. 3, in the present embodiment, the low-temperature-region thermal insulation wall 1 is disposed in a U shape, and includes a first low-temperature wall 13, a second low-temperature wall 14, and a third low-temperature wall 15, which are connected in sequence. The high-temperature-region heat-insulation wall 2 is arranged in a U shape and comprises a first high-temperature wall 23, a second high-temperature wall 24 and a third high-temperature wall 25 which are sequentially connected, at least part of the first high-temperature wall 23 is arranged opposite to the first low-temperature wall 13, at least part of the second low-temperature wall 14 is arranged opposite to the second high-temperature wall 24, and at least part of the third low-temperature wall 15 is arranged opposite to the third high-temperature wall 25.
Specifically, in this embodiment, the first high-temperature wall 23 is disposed opposite to the first low-temperature wall 13, the second low-temperature wall 14 is disposed opposite to the second high-temperature wall 24, and the third low-temperature wall 15 is disposed opposite to the third high-temperature wall 25. A first low-temperature zone 11 is arranged between the first high-temperature wall 23 and the first low-temperature wall 13, and an opening at the end part of the first low-temperature zone 11 is an inlet/outlet of the enamel firing furnace. A second low temperature zone 12 is arranged between the third low temperature wall 15 and the third high temperature wall 25, and the part between the second low temperature wall 14 and the second high temperature wall 24 is connected with the first low temperature zone 11 and the second low temperature zone 12. A third low temperature zone connecting the first low temperature zone 11 and the second low temperature zone 12 is provided between the second low temperature wall 14 and the second high temperature wall 24.
Further, in this embodiment, the connection wall 6 is connected between the end of the first high-temperature wall 23 far from the second high-temperature wall 24 and the end of the third low-temperature wall 15 far from the second low-temperature wall 14 to form a clip structure, so that only one inlet and outlet of the enamel firing furnace is provided, and the preheating of the workpiece is prevented from being affected by excessive heat dissipation in the low-temperature region.
Specifically, in the embodiment, the thickness of the connecting wall body 6 is the same as that of the high-temperature-region heat-insulating wall 2, so that the workpiece can stay in the high-temperature region 21 for a sufficient time, and the enamel processing quality is ensured.
Of course, in other embodiments, as shown in fig. 4, the thickness of the connecting wall 6 is the same as that of the thermal insulation wall 1 in the low temperature region, so as to reduce the manufacturing cost.
Specifically, in the present embodiment, the input track extends from the inlet/outlet to the enamel firing furnace, and enters the high temperature zone 21 through the first low temperature zone 11 and the second low temperature zone 12 in sequence; the output rail extends from the high temperature zone 21, passes through the second low temperature zone 12 and the first low temperature zone 11 in sequence, and then passes through the inlet and outlet. In the high temperature zone 21, the input track and the output track are connected. Exemplarily, referring to fig. 3, in the present embodiment, the enamel firing process of the inner container body is as follows:
1. the normal-temperature liner body coated with the enamel glaze enters the first low-temperature zone 11 from the inlet and the outlet along the input track of the conveying track 3 and enters the high-temperature zone 21 through the second low-temperature zone 12;
2. the enamel glaze on the liner body is sintered in the high-temperature area 21, and the enamel glaze is fused on the metal substrate to form the enamel liner;
3. the enamel liner is output from the high-temperature area 21 and sequentially passes through the second low-temperature area 12 and the first low-temperature area 11 along the output track of the conveying track 3, the enamel liner has higher temperature at the moment, and can exchange heat with the liner body which does not finish the enamel sintering and runs in the opposite direction in the low-temperature area, so that the liner body which does not finish the enamel sintering can be preheated and dried; along with the continuous operation of the enamel liner along the output track, the enamel liner gradually approaches to the inlet and the outlet, the temperature of the enamel liner is continuously reduced, the temperature of the liner body of the enamel layer to be sintered, which operates in the opposite direction, is gradually increased, the liner body of the enamel layer to be sintered enters the high-temperature area 21 to be subjected to enamel firing after reaching a certain temperature, namely, the enamel liner completing the enamel sintering and the liner body not completing the enamel sintering complete heat exchange in the low-temperature area, and the energy is saved;
4. the enamel inner container is output from the inlet and the outlet; the enamel inner container finishes heat exchange at the moment, the temperature of the enamel inner container after the enamel inner container is discharged is basically close to the ambient temperature, the enamel inner container can enter the next procedure without using a fan for blowing cooling or only needing the fan for slightly cooling, and energy waste is avoided.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An enamel firing furnace, comprising:
a low temperature zone;
a high temperature zone (21), wherein at least part of the high temperature zone (21) is positioned inside the low temperature zone, and a first low temperature zone (11) and a second low temperature zone (12) are respectively arranged at two sides of the high temperature zone (21);
and the conveying device (4) is arranged in the enamel firing furnace and can guide the conveyed piece to enter the high-temperature area (21) through the first low-temperature area (11) and the second low-temperature area (12) in sequence and then move out of the high-temperature area (21) through the second low-temperature area (12) and the first low-temperature area (11) in sequence.
2. Enamel firing furnace according to claim 1, characterized in that it comprises a high-temperature zone insulation wall (2) and a low-temperature zone insulation wall (1), the high-temperature zone insulation wall (2) enclosing the high-temperature zone (21), the low-temperature zone insulation wall (1) enclosing the low-temperature zone.
3. Enamel firing furnace according to claim 2, characterized in that the height of the high-temperature-zone insulation wall (2) is smaller than the height of the low-temperature-zone insulation wall (1), and the upper end cover of the high-temperature zone (21) is provided with a high-temperature-zone top insulation layer (22).
4. Enamel firing furnace according to claim 3, characterized in that the high temperature zone top insulation (22) is provided with conveyor walking channels (221).
5. The enamel firing furnace as claimed in claim 4, characterized in that the conveyor (4) comprises a conveyor track (3), the conveyor track (3) comprising an input track and an output track, the free ends of the input track and the output track each being located at the first low-temperature zone (11), the other ends of the input track and the output track entering the high-temperature zone (21) via the second low-temperature zone (12) and being connected to one another.
6. The enamel firing furnace as claimed in claim 2, characterized in that said low-temperature zone insulating walls (1) are arranged in a U-shape, comprising a first low-temperature wall (13), a second low-temperature wall (14) and a third low-temperature wall (15) connected in sequence; high temperature district thermal-insulation wall (2) are the U type setting, including first high temperature wall body (23), second high temperature wall body (24) and third high temperature wall body (25) that connect gradually, first high temperature wall body (23) at least part with first low temperature wall body (13) set up relatively, second low temperature wall body (14) with second high temperature wall body (24) set up relatively, third low temperature wall body (15) at least part with third high temperature wall body (25) set up relatively.
7. Enamel firing furnace according to claim 6, characterized in that a connecting wall (6) is connected between the end of the first high temperature wall (23) remote from the second high temperature wall (24) and the end of the third low temperature wall (15) remote from the second low temperature wall (14) to form a paperclip structure.
8. The enamel firing furnace as claimed in claim 7, characterized in that the thickness of the high-temperature-region heat-insulating wall (2) is greater than the thickness of the low-temperature-region heat-insulating wall (1);
the thickness of the connecting wall body (6) is the same as that of the high-temperature area heat-insulating wall (2); or
The thickness of the connecting wall body (6) is the same as that of the low-temperature-area heat-insulating wall (1).
9. Enamel firing furnace according to any of the claims 1-8, characterized in that the upper end cover of the low temperature zone is provided with a low temperature zone top insulation layer (26).
10. Enamel firing furnace according to any of the claims 1-8, characterized in that in the high temperature zone (21) both sides of the conveyor (4) are provided with heating elements (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221824786.5U CN218561610U (en) | 2022-07-14 | 2022-07-14 | Enamel firing furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221824786.5U CN218561610U (en) | 2022-07-14 | 2022-07-14 | Enamel firing furnace |
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| CN218561610U true CN218561610U (en) | 2023-03-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117385357A (en) * | 2023-10-30 | 2024-01-12 | 娄底湘信新材料科技有限公司 | Sintering furnace for producing acid-resistant enamel glaze |
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2022
- 2022-07-14 CN CN202221824786.5U patent/CN218561610U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117385357A (en) * | 2023-10-30 | 2024-01-12 | 娄底湘信新材料科技有限公司 | Sintering furnace for producing acid-resistant enamel glaze |
| CN117385357B (en) * | 2023-10-30 | 2024-03-29 | 娄底湘信新材料科技有限公司 | Sintering furnace for producing acid-resistant enamel glaze |
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