CN218443274U - Thermal radiation heating device of roller kiln - Google Patents
Thermal radiation heating device of roller kiln Download PDFInfo
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- CN218443274U CN218443274U CN202222624047.8U CN202222624047U CN218443274U CN 218443274 U CN218443274 U CN 218443274U CN 202222624047 U CN202222624047 U CN 202222624047U CN 218443274 U CN218443274 U CN 218443274U
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Abstract
The utility model relates to a thermal radiation heating device of roller kilns, include: the device comprises a combustion chamber group, a roller kiln body, a gas burner and a high-heat radiation flue gas pipe group; the four rows of combustion chamber groups are respectively arranged at the left upper part, the right upper part, the left lower part and the right lower part outside the roller kiln body, and the combustion chamber units of the four rows of combustion chamber groups are arranged along the length direction of the roller kiln body; and two ends of the high heat radiation flue gas pipe of the two high heat radiation flue gas pipe groups are respectively communicated with corresponding combustion chamber units in the combustion chamber groups corresponding to the left side and the right side of the roller kiln body to form an upper flue and a lower flue which are sequentially circuitous and communicated in series. The device has the advantages of full utilization of energy, energy conservation, compact structure, low failure rate and the like.
Description
Technical Field
The utility model relates to a thermal radiation heating device, concretely relates to be applied to thermal radiation heating device of roll table kiln belongs to and equips manufacturing technology and energy-conserving technical field.
Background
At present, when an anti-oxidation product is fired by a roller kiln, an electric heating tube is adopted for heating and is matched with a nitrogen protection measure, and a heat radiation heating mode of a quartz electric heating tube can be adopted to avoid oxidation reaction caused by the fact that materials are contacted with oxygen without air medium heat transfer. In addition, the method comprises the step of firing the powdery raw material, wherein the powder is prevented from floating due to hot air disturbance in the firing process only by adopting a heating mode of heat radiation in the firing process. The firing of electrode materials including new energy batteries also adopts the electric heating tube heating technology in a large quantity at present. However, the energy cost is greatly increased due to the expensive electricity price on one hand, and the production is greatly influenced in areas with electricity shortage, and in addition, the heating wire of the high-power electric heating tube is easy to burn out, and the maintenance rate is quite high.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and providing a thermal radiation heating device of a roller kiln, when high-temperature flue gas generated by a gas burner passes through a high-heat radiation flue gas pipe, the outside of the high-heat radiation flue gas pipe is converted into infrared radiation to heat materials, thereby avoiding the direct action of hot air on the materials to generate oxidation; all the flue gas is communicated to a flue gas outlet through a high-heat radiation flue gas pipe from a high-temperature area to a low-temperature area, so that the total length of the high-heat radiation flue gas pipe can be increased, the heat of the flue gas can be fully dissipated and transferred, and the energy consumption is further saved; the flux of the high-heat radiation flue gas pipe leading to the direction of the flue gas outlet is increased along with the increase of the accumulated number of the gas burners, so that the problem that the flue resistance is gradually increased along with the increase of the flue gas amount of the gas burners can be solved; the arrangement density of the gas burner is reduced along with the gradual increase of the size of the combustion chamber from the high-temperature area to the low-temperature area of the kiln, so that the heat demand distribution of the kiln from the high-temperature area to the low-temperature area is met; the energy consumption cost can be greatly saved by adopting natural gas heating rather than electric heating; the heating structure adopting the combustor is simpler and easier to install than an electric heating structure, and the failure rate of the equipment is lower.
In order to achieve the above object, the technical solution of the present invention is to provide a thermal radiation heating apparatus for a roller kiln, comprising:
four rows of combustion chamber groups and a roller kiln body; the combustion chamber group comprises a plurality of combustion chamber units which are arranged in parallel, four rows of combustion chamber groups are respectively arranged at the left upper part, the right upper part, the left lower part and the right lower part outside the roller kiln body, the combustion chamber units of the four rows of combustion chamber groups are arranged along the length direction of the roller kiln body, and two adjacent combustion chamber units in each combustion chamber group are separated by a refractory wall; the temperature of the roller kiln body decreases gradually from the high-temperature area to the low-temperature area from front to back, and a conveying roller bar row for transmission is arranged in the roller kiln body;
a gas burner; the gas burner is installed in each combustion chamber unit in the combustion chamber group;
two high-heat radiation flue gas pipe groups; the high heat radiation flue gas pipe of the high heat radiation flue gas pipe group consists of a ceramic pipe or a quartz pipe with high heat radiation performance; the high heat radiation flue gas pipe of one high heat radiation flue gas pipe group horizontally penetrates through the roller kiln body and is positioned in the space above the conveying roller bar row, two ends of the high heat radiation flue gas pipe group are respectively communicated with combustion chamber units corresponding to the combustion chamber groups on the left side and the right side above the roller kiln body to form an upper flue which sequentially turns around and is communicated in series, an upper flue gas outlet is arranged at the tail end of the upper flue, and after one combustion chamber unit is communicated in series with each upper flue from a high temperature region to a low temperature region of the roller kiln body, the number or the flux of the high heat radiation flue gas pipe connected subsequently is increased along with the increase; the high heat radiation flue gas pipe of another way high heat radiation flue gas pipe group passes through the roller kiln body in the horizontal direction and is located in the space below the conveying roller bar row, two ends of the high heat radiation flue gas pipe of the way high heat radiation flue gas pipe group are respectively communicated with the combustion chamber units corresponding to the combustion chamber groups on the left side and the right side below the roller kiln body to form a lower flue which is sequentially circuitous and communicated in series, a lower flue outlet is arranged at the tail end of the lower flue, and after one combustion chamber unit is communicated in series with each lower flue from the high temperature region to the low temperature region of the roller kiln body, the number or the flux of the high heat radiation flue gas pipe connected subsequently is increased along with the increase.
In the technical scheme, the length of the combustion chamber unit in the combustion chamber group is gradually increased from the high-temperature area to the low-temperature area of the roller kiln body, and the number or the flux of the high-heat radiation flue gas pipes correspondingly connected with the combustion chamber unit is larger.
In the technical scheme, as the accumulated number of the combustion chamber units communicated with the upper flue and the upper flue in series increases, the flux of a high-heat radiation flue gas pipe correspondingly connected with the upper flue increases; and as the accumulated number of the combustion chamber units communicated with the lower flue and the lower flue is increased, the flux of the high-heat radiation flue gas pipe correspondingly connected with the lower flue is increased.
In the technical scheme, the drift diameter of a high-heat radiation flue pipe in the high-heat radiation flue pipe group is 25-100 mm.
In the technical scheme, the increase of the total flux of the high-heat radiation flue gas pipe group can be realized by increasing the number of the high-heat radiation flue gas pipes or increasing the pipe diameters of the high-heat radiation flue gas pipes.
In the technical scheme, a temperature sensor is arranged in the roller kiln body, and the gas burner is electrically connected with the temperature sensor and controlled by the temperature sensor.
Compared with the prior art, the utility model the advantage do: when high-temperature flue gas generated by a gas burner passes through a high-heat radiation flue gas pipe, the outside of the high-heat radiation flue gas pipe is converted into infrared radiation to heat materials, so that hot air is prevented from directly acting on the materials to generate oxidation; all the flue gas is communicated to a flue gas outlet through a high-temperature flue gas pipe from a high-temperature area to a low-temperature area, so that the total length of the high-temperature flue gas pipe can be increased, the heat of the flue gas can be fully dissipated and transferred, and the energy consumption can be saved; the flux of the high-heat radiation flue gas pipe leading to the direction of the flue gas outlet is increased along with the increase of the accumulated number of the gas burners, so that the problem that the flue resistance is gradually increased along with the increase of the flue gas amount of the gas burners can be solved; the arrangement density of the gas burners is reduced along with the gradual increase of the size of the combustion chamber from the high-temperature area to the low-temperature area of the kiln, so that the heat demand distribution of the kiln from the high-temperature area to the low-temperature area is met; the energy consumption cost can be greatly saved by adopting natural gas heating rather than electric heating; the heating structure adopting the combustor is simpler and easier to install than an electric heating structure, and the failure rate of the equipment is lower.
Drawings
FIG. 1 is a schematic front view of embodiment 1;
FIG. 2 is a schematic top view of embodiment 1;
FIG. 3 is a schematic side view of example 1;
FIG. 4 is a schematic front view of embodiment 2;
FIG. 5 is a schematic side view of embodiment 2.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, the terms "upper" and "lower" indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
Example one
As shown in fig. 1 to 3, a thermal radiation heating apparatus for a roller kiln includes:
a four-row combustion chamber group 1 and a roller kiln body 5; the combustion chamber group 1 comprises a plurality of combustion chamber units 10 which are arranged in parallel, the four rows of combustion chamber groups 1 are respectively arranged at the left upper part, the right upper part, the left lower part and the right lower part outside the roller kiln body 5, the combustion chamber units 10 of the four rows of combustion chamber groups 1 are arranged along the length direction of the roller kiln body 5, and two adjacent combustion chamber units 10 in each combustion chamber group 1 are separated by a refractory wall 11; the temperature of the roller kiln body 5 is gradually decreased from a high temperature area to a low temperature area from front to back, and a conveying roller bar row 6 for transmission is arranged in the roller kiln body 5;
a gas burner 2; the gas burner 2 is installed in each combustor unit 10 in the combustor group 1;
two high heat radiation flue gas pipe groups 3; the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 is composed of a ceramic pipe with high heat radiation performance; the high heat radiation flue gas pipe 31 of one high heat radiation flue gas pipe group 3 horizontally penetrates through the roller kiln body 5 and is positioned in the upper space 51 of the conveying roller bar row 6, two ends of the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 are respectively communicated with the combustion chamber units 10 corresponding to the combustion chamber groups 1 on the left side and the right side above the roller kiln body 5 to form an upper flue which sequentially turns around and is communicated in series, the tail end of the upper flue is provided with an upper flue gas outlet 4, and after each combustion chamber unit 10 is communicated in series with the upper flue from a high temperature region of the roller kiln body 5 to a low temperature region, the number or the flux of the high heat radiation flue gas pipe 31 connected subsequently is increased along with the increase; the high heat radiation flue gas pipe 31 of the other high heat radiation flue gas pipe group 3 horizontally penetrates through the roller kiln body 5 and is located in the lower space 52 of the conveying roller bar row 6, two ends of the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 are respectively communicated with the combustion chamber units 10 corresponding to the combustion chamber groups 1 on the left side and the right side below the roller kiln body 5 to form a lower flue which sequentially turns around and is communicated in series, a lower flue outlet 40 is arranged at the tail end of the lower flue, and after each lower flue from the high temperature area to the low temperature area of the roller kiln body 5 is communicated with one combustion chamber unit 10, the number or the flux of the high heat radiation flue gas pipe 31 connected subsequently is increased along with the increase.
In the technical scheme, the length of the combustion chamber unit 10 in the combustion chamber group 1 is gradually increased from the high-temperature area to the low-temperature area of the roller kiln body 5, and the number or the flux of the high-heat radiation flue gas pipes 31 correspondingly connected with the combustion chamber unit is increased.
In the technical scheme, as the accumulated number of the combustion chamber units 10 communicated with the upper flue and the upper flue in series increases, the flux of the high-heat radiation flue gas pipe 31 correspondingly connected with the upper flue increases; as the cumulative number of the lower flues and the combustion chamber units 10 communicated in series with the lower flues increases, the flux of the high heat radiation flue gas pipe 31 correspondingly connected with the lower flues also increases.
In the technical scheme, the drift diameter of the high heat radiation flue pipe 31 in the high heat radiation flue pipe group 3 is 50mm-100mm.
In the present technical solution, the increase of the total flux of the high heat radiation flue gas pipe group 3 can be realized by increasing the number of the high heat radiation flue gas pipes 31 or increasing the pipe diameter of the high heat radiation flue gas pipes 31.
In the technical scheme, a temperature sensor is arranged in the roller kiln body 5, and the gas burner 2 is electrically connected with the temperature sensor and controlled by the temperature sensor.
In the present solution, the wall 12 of the combustion chamber is made of refractory material and heat insulating material.
The flux of the upper flue to the high-heat radiation flue pipe 31 in the direction of the upper flue gas outlet 4 is increased along with the increase of the accumulated number of the gas burners 2; the last upper flue is connected with an external upper flue gas outlet 4 after passing through the upper space 51 of the roller kiln body 5.
The flux of the lower flue to the high heat radiation flue pipe 31 in the direction of the lower flue gas outlet 40 is increased along with the increase of the accumulated number of the gas burners 2; the last lower flue is connected with the outer lower flue gas outlet 40 after passing through the lower space 52 of the roller kiln body 5.
The high-temperature area of the roller kiln 5 is close to the middle section position of the kiln, the low-temperature area of the roller kiln 5 is close to the inlet direction position of the material, and a high-heat radiation flue gas pipe 31 of the high-heat radiation flue gas pipe group 3 is sealed with the inner wall of the kiln.
In the first embodiment, a physical phenomenon that a large amount of infrared rays are radiated outside is utilized after a ceramic tube is heated, and a large amount of infrared rays are radiated to surrounding space and nearby materials after hot gas flowing in the ceramic tube is used as a heat source to heat the wall of the ceramic tube. The kiln is provided with a plurality of heating zones from a middle section high-temperature area to a material entering direction, the heat source of each heating zone is high-temperature flue gas generated by gas burners on two sides of the kiln, when the flue gas passes through a ceramic tube arranged in the kiln, the heat of the high-temperature flue gas can heat the inner space of the kiln and the material flowing through the inner space in a radiation mode, the ceramic tube can resist the high temperature above 1100 ℃, and the local space of the kiln can be heated to above 900 ℃ in the mode. For make full use of flue gas heat, discharge after the whole heating interval that the flue that forms through ceramic pipe is through the mode cluster that concatenates to the kiln to guarantee thermal make full use of and reduce the discharge temperature of flue gas. The high-temperature flue gas based on the continuous combustor in the path connected in series through the ceramic tubes is added, so that the flue gas volume in the flue is increased, the adverse effect caused by the increase of the resistance of the flue to increase the positive pressure of the pipeline and the combustion chamber is avoided, the drift diameter of the flue is designed to be increased, namely, when one combustor is added in the flue connected in series through the ceramic tubes, the drift diameter of the ceramic tubes behind the combustor is correspondingly increased, and the drift diameter can be increased by increasing the number of the ceramic tubes or increasing the drift diameter of a single ceramic tube on the basis of the number of the original ceramic tubes.
Because the first pass of the upper flue and the lower flue is close to the high-temperature area, the last pass of the upper flue and the lower flue is close to the low-temperature area, and the length size of the combustion chamber corresponding to the first section to the last section and the drift diameter of the ceramic pipe installed in the combustion chamber are also from small to large, the density of the burners distributed from the high-temperature area to the low-temperature area in the kiln is gradually reduced, and thus the temperature curve of gradually increasing the temperature and adding the entering materials is just met.
In most areas in the kiln, the heat acquisition comprises two parts of waste heat radiation of flue gas flowing down from a high-temperature section and radiation heat supplemented by a combustor at the current section, and the temperature of the area at the section can be adjusted by adjusting the combustion power of the combustor at the current section.
After the flue gas generated by all the burners 2 is subjected to radiation heat exchange, the low-temperature flue gas is finally collected to a flue gas outlet communicated with the tail section flue and is discharged.
Example two
As shown in fig. 4 to 5, a thermal radiation heating apparatus of a roller kiln includes:
a four-row combustion chamber group 1 and a roller kiln body 5; the combustion chamber group 1 comprises a plurality of combustion chamber units 10 which are parallel, the four rows of combustion chamber groups 1 are respectively arranged at the left upper part, the right upper part, the left lower part and the right lower part outside the roller kiln body 5, the combustion chamber units 10 of the four rows of combustion chamber groups 1 are arranged along the length direction of the roller kiln body 5, and two adjacent combustion chamber units 10 in each combustion chamber group 1 are separated by a refractory wall 11; the temperature of the roller kiln body 5 is gradually decreased from a high temperature area to a low temperature area from front to back, and a conveying roller bar row 6 for transmission is arranged in the roller kiln body 5;
a gas burner 2; the gas burner 2 is installed in each combustor unit 10 in the combustor group 1;
two high heat radiation flue gas pipe groups 3; the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 is composed of a quartz pipe with high heat radiation performance; the high heat radiation flue gas pipe 31 of one high heat radiation flue gas pipe group 3 horizontally penetrates through the roller kiln body 5 and is positioned in the upper space 51 of the conveying roller bar row 6, two ends of the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 are respectively communicated with the combustion chamber units 10 corresponding to the combustion chamber groups 1 on the left side and the right side above the roller kiln body 5 to form an upper flue which sequentially bypasses and is communicated in series, the tail end of the upper flue is provided with an upper flue gas outlet 4, and after each combustion chamber unit 10 is communicated with the upper flue from the high temperature region to the low temperature region of the roller kiln body 5, the number or the flux of the high heat radiation flue gas pipe 31 connected subsequently is increased along with the increase; the high heat radiation flue gas pipe 31 of the other high heat radiation flue gas pipe group 3 horizontally penetrates through the roller kiln body 5 and is located in the lower space 52 of the conveying roller bar row 6, two ends of the high heat radiation flue gas pipe 31 of the high heat radiation flue gas pipe group 3 are respectively communicated with the combustion chamber units 10 corresponding to the combustion chamber groups 1 on the left side and the right side below the roller kiln body 5 to form a lower flue which sequentially turns around and is communicated in series, a lower flue outlet 40 is arranged at the tail end of the lower flue, and after each lower flue from the high temperature area to the low temperature area of the roller kiln body 5 is communicated with one combustion chamber unit 10, the number or the flux of the high heat radiation flue gas pipe 31 connected subsequently is increased along with the increase.
In the technical scheme, the length of the combustion chamber unit 10 in the combustion chamber group 1 is gradually increased from the high-temperature area to the low-temperature area of the roller kiln body 5, and the number or the flux of the high-heat radiation flue gas pipes 31 correspondingly connected with the combustion chamber unit is increased.
In the technical scheme, as the accumulated number of the combustion chamber units 10 communicated with the upper flue and the upper flue in series increases, the flux of the high-heat radiation flue gas pipe 31 correspondingly connected with the upper flue increases; as the cumulative number of said flues and the flues in series connected with the combustion chamber unit 10 increases, the flux of the high heat radiation flue gas pipe 31 correspondingly connected with the flues also increases.
In the technical scheme, the drift diameter of the high heat radiation flue pipe 31 in the high heat radiation flue pipe group 3 is 25mm-50mm.
In the present technical solution, the increase of the total flux of the high heat radiation flue gas pipe group 3 can be realized by increasing the number of the high heat radiation flue gas pipes 31 or increasing the pipe diameter of the high heat radiation flue gas pipes 31.
In the technical scheme, a temperature sensor is arranged in the roller kiln body 5, and the gas burner 2 is electrically connected with the temperature sensor and controlled by the temperature sensor.
In this solution, the wall 12 of the combustion chamber is made of refractory material and heat-insulating material.
The flux of the upper flue to the high-heat radiation flue pipe 3 in the direction of the upper flue gas outlet 4 is increased along with the increase of the accumulated number of the gas burners 2; the last upper flue is connected with an external upper flue gas outlet 4 after passing through the upper space 51 of the roller kiln body 5.
The flux of the lower flue to the high heat radiation flue gas pipe 3 in the direction of the lower flue gas outlet 40 is increased along with the increase of the accumulated number of the gas burners 2; the last lower flue is connected with the outer lower flue gas outlet 40 after passing through the lower space 52 of the roller kiln body 5.
The high-temperature area of the roller kiln 5 is close to the middle section of the kiln, the low-temperature area of the roller kiln 5 is close to the inlet direction of the material, and a high-heat radiation flue gas pipe of the high-heat radiation flue gas pipe group 3 is sealed with the inner wall of the kiln.
The difference between the embodiment 2 and the embodiment 1 is that the embodiment 2 adopts the quartz tube with a smaller drift diameter as the high-heat radiation flue gas tube, the quartz material also has high heat radiation performance, the quartz tube can better resist the high temperature of more than 1400 ℃, the local temperature in the kiln can be increased to more than 1100 ℃, and because the heat radiation efficiency is related to the surface area, the surface area is larger by adopting a plurality of quartz tubes with smaller diameters under the same total flux of the flue, and the heat radiation efficiency can be improved.
The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention.
Claims (6)
1. The utility model provides a thermal radiation heating device of roller kilns which characterized in that includes:
a four-row combustion chamber group (1) and a roller kiln body (5); the combustion chamber group (1) comprises a plurality of combustion chamber units (10) which are parallel, the four rows of combustion chamber groups (1) are respectively arranged at the left upper part, the right upper part, the left lower part and the right lower part outside the roller kiln body (5), the combustion chamber units (10) of the four rows of combustion chamber groups (1) are arranged along the length direction of the roller kiln body (5), and two adjacent combustion chamber units (10) in each combustion chamber group (1) are separated by a refractory wall body (11); the temperature of the roller kiln body (5) is gradually decreased from the high temperature area to the low temperature area from the front to the back, and a conveying roller bar row (6) for transmission is arranged in the roller kiln body (5);
a gas burner (2); the gas burner (2) is installed in each combustion chamber unit (10) in the combustion chamber group (1);
two paths of high-heat radiation flue gas pipe groups (3); the high heat radiation flue gas pipe (31) of the high heat radiation flue gas pipe group (3) is composed of a ceramic pipe or a quartz pipe with high heat radiation performance; the high-heat radiation flue gas pipe (31) of one high-heat radiation flue gas pipe group (3) horizontally penetrates through the roller kiln body (5) and is positioned in an upper space (51) of the conveying roller bar row (6), two ends of the high-heat radiation flue gas pipe (31) of the high-heat radiation flue gas pipe group (3) are respectively communicated with combustion chamber units (10) corresponding to the combustion chamber groups (1) on the left side and the right side above the roller kiln body (5) to form an upper flue which sequentially turns around and is communicated, an upper flue outlet (4) is arranged at the tail end of the upper flue, and after each upper flue from a high-temperature area to a low-temperature area of the roller kiln body (5) is communicated with one combustion chamber unit (10), the number or the flux of the high-heat radiation flue gas pipe (31) connected subsequently is increased along with the increase; the high heat radiation flue gas pipe (31) of the other high heat radiation flue gas pipe group (3) penetrates through the roller kiln body (5) in the horizontal direction and is located in a lower space (52) of the conveying roller bar row (6), two ends of the high heat radiation flue gas pipe (31) of the other high heat radiation flue gas pipe group (3) are respectively communicated with combustion chamber units (10) corresponding to the combustion chamber groups (1) on the left side and the right side below the roller kiln body (5) to form lower flues which sequentially return and communicate in series, a lower flue gas outlet (40) is arranged at the tail end of each lower flue, and after each lower flue in a high-temperature region to a low-temperature region of the roller kiln body (5) communicates with one combustion chamber unit (10), the number or the flux of the high heat radiation flue gas pipe (31) connected subsequently is increased along with the increase.
2. The thermal radiant heating device of roller kilns according to claim 1, characterized in that the length dimension of the combustion chamber units (10) in said combustion chamber group (1) increases gradually from the high temperature zone to the low temperature zone of the roller kiln body (5), the greater the number or flux of the high heat radiation flue gas pipes (31) connected correspondingly thereto.
3. The thermal radiant heating device of roller kilns according to claim 1, characterised in that as the cumulative number of the combustion chamber units (10) crossed by the upper flues and the upper flues increases, the flux of the high thermal radiant flue pipes (31) correspondingly connected thereto also increases; as the cumulative number of the lower flues and the combustion chamber units (10) communicated with the lower flues increases, the flux of the high-heat radiation flue gas pipe (31) correspondingly connected with the lower flues also increases.
4. The thermal radiation heating device of the roller kiln according to the claim 1 is characterized in that the diameter of the high heat radiation flue gas pipe (31) in the high heat radiation flue gas pipe group (3) is 25mm-100mm.
5. The thermal radiation heating device of roller kiln according to claim 1, characterized in that the increase of the total flux of the group of high heat radiation flue gas pipes (3) is achieved by increasing the number of the high heat radiation flue gas pipes (31) or increasing the pipe diameter of the high heat radiation flue gas pipes (31).
6. The thermal radiation heating device of roller kilns according to claim 1, characterized in that a temperature sensor is arranged in the roller kiln body (5), and the gas burner (2) is electrically connected with the temperature sensor and controlled by the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222624047.8U CN218443274U (en) | 2022-10-08 | 2022-10-08 | Thermal radiation heating device of roller kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222624047.8U CN218443274U (en) | 2022-10-08 | 2022-10-08 | Thermal radiation heating device of roller kiln |
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| Publication Number | Publication Date |
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| CN218443274U true CN218443274U (en) | 2023-02-03 |
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| CN202222624047.8U Active CN218443274U (en) | 2022-10-08 | 2022-10-08 | Thermal radiation heating device of roller kiln |
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