CN215810124U - Tunnel kiln slow cooling area structure - Google Patents
Tunnel kiln slow cooling area structure Download PDFInfo
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- CN215810124U CN215810124U CN202121957164.5U CN202121957164U CN215810124U CN 215810124 U CN215810124 U CN 215810124U CN 202121957164 U CN202121957164 U CN 202121957164U CN 215810124 U CN215810124 U CN 215810124U
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- heat exchange
- slow cooling
- tunnel kiln
- exchange tubes
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Abstract
The utility model discloses a tunnel kiln slow cooling area structure which is used for uniformly and slowly cooling ceramic tiles in a tunnel kiln and avoiding cold cracking of ceramic tile products on the same cross section of the tunnel kiln due to stress generated by different positions of the ceramic tile products at different cooling speeds. The ceramic tile slow-cooling device comprises a slow-cooling chamber, wherein the slow-cooling chamber is provided with a plurality of sticks for conveying ceramic tiles, and the sticks are arranged at intervals along the conveying direction of the ceramic tiles; it still includes: the air draft assembly comprises a fan and an air draft pipe, and the air inlet end of the fan is connected with one end of the air draft pipe; the first heat exchange assembly comprises a plurality of first heat exchange tubes which are positioned above the sticks and arranged at intervals along the conveying direction of the ceramic tiles, the rear ends of the first heat exchange tubes are provided with first air inlets, and the front ends of the first heat exchange tubes are communicated with the exhaust pipes; the second heat exchange assembly comprises a plurality of second heat exchange tubes which are positioned above the sticks and are arranged at intervals along the conveying direction of the ceramic tiles, the front ends of the second heat exchange tubes are provided with second air inlets, and the rear ends of the second heat exchange tubes are communicated with the exhaust pipes; the first heat exchange assemblies and the second heat exchange assemblies are alternately arranged along the tile conveying direction.
Description
Technical Field
The utility model relates to the technical field of ceramic tile firing equipment, in particular to a tunnel kiln slow cooling area structure.
Background
During the ceramic tile firing process, a slow cooling stage must be set, in order to prevent the ceramic tile from generating cold cracks due to the rapid cooling through the gentle cooling. At present, a plurality of heat exchange tubes are basically arranged at intervals in the tunnel kiln, and cold air in the heat exchange tubes and high-temperature gas in the tunnel kiln are subjected to heat exchange in an indirect heat exchange mode, so that the ceramic tiles are slowly cooled. The same end of the heat exchange pipe is provided with an air inlet for sucking cold air, and the other end of the heat exchange pipe is connected with an exhaust pipe for discharging hot air absorbing heat outwards. However, in actual work, the temperature of one end of cold air is low, and the temperature of one end of hot air is high, so that stress is generated at different positions of a ceramic tile product on the same cross section of the tunnel kiln due to inconsistent cooling speed, and the ceramic tile is subjected to cold cracking.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tunnel kiln slow cooling zone structure, which is used for solving one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a tunnel kiln slow cooling area structure which comprises a slow cooling chamber, wherein the slow cooling chamber is provided with a plurality of sticks for conveying ceramic tiles, and the sticks are arranged at intervals along the conveying direction of the ceramic tiles; wherein, tunnel cave slow cooling district structure still includes:
the air draft assembly comprises a fan and an air draft pipe; the air inlet end of the fan is connected with one end of the exhaust pipe;
the first heat exchange assembly comprises a plurality of first heat exchange tubes positioned above the sticks, the plurality of first heat exchange tubes are arranged at intervals along the conveying direction of the ceramic tiles, a first air inlet is formed in the rear end of each first heat exchange tube, and the front ends of the first heat exchange tubes are communicated with the exhaust pipes;
the second heat exchange assembly comprises a plurality of second heat exchange tubes positioned above the sticks, the plurality of second heat exchange tubes are arranged at intervals along the conveying direction of the ceramic tiles, a second air inlet is formed in the front end of each second heat exchange tube, and the rear ends of the second heat exchange tubes are communicated with the exhaust pipes; the first heat exchange assemblies and the second heat exchange assemblies are alternately arranged along the tile conveying direction.
The utility model has at least the following beneficial effects: set up first heat exchange assembly and second heat exchange assembly in turn along ceramic tile direction of delivery in the top of rod, first heat exchange assembly includes many first heat exchange tubes, the rear end of first heat exchange tube is equipped with first air intake, the front end and the exhaust column intercommunication of first heat exchange tube, and, second heat exchange assembly includes many second heat exchange tubes, the front end of second heat exchange tube is equipped with the second air intake, the rear end and the exhaust column intercommunication of second heat exchange tube, the exhaust column is connected with the air inlet end of fan, under the drive of fan, the air in first heat exchange tube and the air in the second heat exchange tube are outwards discharged through the exhaust column, and, the first air intake of first heat exchange tube and the second air intake position of second heat exchange tube are different, inhale cold wind respectively from both sides around the tunnel kiln, carry out comparatively even slow cooling to the ceramic tile in the tunnel kiln, can avoid taking place the different positions of the ceramic tile product on the same cross section of tunnel kiln and produce stress because of cooling speed is inconsistent and lead to the ceramic tile appearance In the case of cold cracking.
As a further improvement of the technical scheme, the device also comprises a pipe sleeve; an air inlet is formed in the peripheral surface of the pipe sleeve, and a sealing plate is arranged at one end of the pipe sleeve; the rear end of the first heat exchange tube is sleeved with the tube sleeve, and the peripheral surface of the first heat exchange tube is provided with a first inlet which can be communicated with the air inlet; the front end of the second heat exchange tube is sleeved with the tube sleeve, and the peripheral surface of the second heat exchange tube is provided with a second inlet which can be communicated with the air inlet.
The rear end of the first heat exchange tube and the front end of the second heat exchange tube are both provided with a tube sleeve, one end of the tube sleeve is provided with a sealing plate, the sealing plate can seal the port of the first heat exchange tube and the port of the second heat exchange tube, the outer peripheral surface of the tube sleeve is provided with an air inlet, the outer peripheral surface of the first heat exchange tube is correspondingly provided with a first inlet, the outer peripheral surface of the second heat exchange tube is correspondingly provided with a second inlet, and the air inlet amount of the first heat exchange tube and the air inlet amount of the second heat exchange tube are adjusted by rotating the tube sleeve, so that the slow cooling degree in the tunnel kiln is controlled.
As a further improvement of the technical scheme, the sealing plate is a circular plate, and anti-skid grains are arranged along the circumferential surface of the sealing plate. Set up the shrouding into the plectane to set up anti-skidding line at its periphery, increase the frictional force between shrouding and the staff hand, make things convenient for the staff to grip the shrouding and rotate, reduce the regulation degree of difficulty.
As a further improvement of the above technical solution, the air inlet, the first inlet and the second inlet are all rectangular openings. The air inlet, the first inlet and the second inlet are designed in a rectangular shape, so that the maximum air inlet volume of the first heat exchange tube and the maximum air inlet volume of the second heat exchange tube can be expanded.
As a further improvement of the technical scheme, the first heat exchange tube and the second heat exchange tube are positioned on the same horizontal plane. By the design, the height between the ceramic tile and the first heat exchange tube and the height between the ceramic tile and the second heat exchange tube are consistent, the ceramic tile can be stably cooled, and cracks are avoided.
Drawings
The utility model is further described with reference to the accompanying drawings and examples;
FIG. 1 is a schematic structural diagram of an embodiment of a slow cooling zone structure of a tunnel kiln provided by the present invention;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
FIG. 3 is a cross-sectional view of section B-B of FIG. 1;
FIG. 4 is a schematic view of a pipe sleeve in a slow cooling zone structure of a tunnel kiln provided by the present invention.
The drawings are numbered as follows: 100. a slow cooling chamber; 110. a stick; 200. a pipe fitting; 201. a rectangular opening; 210. a first heat exchange assembly; 220. a second heat exchange assembly; 310. a first exhaust pipe; 320. a second exhaust pipe; 400. a fan; 500. pipe sleeve; 510. and (7) closing the plate.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.
In the description of the present invention, if words such as "a plurality" are described, it means one or more, a plurality is two or more, more than, less than, more than, etc. are understood as not including the present number, and more than, less than, etc. are understood as including the present number. If any description to first, second and third is only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
It should be noted that, in the figure, the direction X is from the rear side of the slow cooling zone structure of the tunnel kiln to the front side; the Y direction is from the left side of the tunnel kiln slow cooling zone structure to the right side; the Z direction is from the lower side of the tunnel kiln slow cooling zone structure to the upper side. In addition, the direction of the arrow in the drawings indicates the flow direction of air.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, several examples of the slow cooling zone structure of the tunnel kiln of the present invention will be described.
As shown in fig. 1 to 4, an embodiment of the present invention provides a slow cooling zone structure of a tunnel kiln, which includes a slow cooling chamber 100, wherein the slow cooling chamber 100 is provided with a plurality of sticks 110 for conveying tiles, the sticks 110 are provided at intervals along a tile conveying direction (i.e., a left-right direction of the slow cooling chamber 100), and both ends of the sticks 110 extend in a front-rear direction.
The tunnel kiln slow cooling area structure further comprises an air draft assembly, a first heat exchange assembly 210 and a second heat exchange assembly 220.
The extraction assembly includes a fan 400 and an extraction duct. The air inlet end of the fan 400 is connected with one end of the exhaust pipe, the air outlet end of the fan 400 can be connected with a discharge pipe, and the other end of the exhaust pipe can be provided with a blind plate for sealing. The blower 400 and the exhaust duct are disposed above the slow cooling chamber 100.
First heat exchange assembly 210 includes many first heat exchange tubes that are located the club 110 top, many first heat exchange tubes set up along ceramic tile direction of delivery interval, and many first heat exchange tubes are in on the same horizontal plane. The rear end of the first heat exchange tube is provided with a first air inlet, and the front end of the first heat exchange tube is communicated with the exhaust pipe, so that cold wind can flow in from the first air inlet, can exchange heat with high-temperature gas in the slow cooling chamber 100 in the first heat exchange tube, can flow into the exhaust pipe after being changed into hot wind, and can be discharged outwards under the driving of the fan 400.
Second heat exchange assembly 220 includes that the many are located the second heat exchange tube of rod 110 top, many the second heat exchange tube sets up along ceramic tile direction of delivery interval, and many second heat exchange tubes are in on the same horizontal plane, the front end of second heat exchange tube is equipped with the second air intake, the rear end of second heat exchange tube with the exhaust column intercommunication, so, cold air can flow in from the second air intake, and the high-temperature gas in with slow cooling room 100 carries out the heat exchange in the second heat exchange tube, and cold wind absorbs the heat and becomes hot-blast, under fan 400's effect, hot-blast process exhaust column toward outer discharge.
In this embodiment, a first exhaust pipe 310 and a second exhaust pipe 320 are provided, the first heat exchange pipe is connected to the first exhaust pipe 310, the second heat exchange pipe is connected to the second exhaust pipe 320, and one end of the first exhaust pipe 310 and one end of the second exhaust pipe 320 are connected to the air inlet end of the fan 400.
The first heat exchange assemblies 210 and the second heat exchange assemblies 220 are alternately arranged along the tile conveying direction. The first heat exchange tube and the second heat exchange tube are positioned on the same horizontal plane.
Because the first air inlet of first heat exchange tube and the second air inlet position of second heat exchange tube are different, inhale into cold wind respectively from the front and back both sides of tunnel cave, carry out comparatively even slow cooling to the ceramic tile in the tunnel cave, can avoid taking place the different positions of the ceramic tile product on the same cross section of tunnel cave and lead to the condition that the ceramic tile appears the cold crack because of the inconsistent stress that produces of cooling rate.
In some embodiments, a tube sleeve 500 is also included. The pipe sleeve 500 may be made of plastic, and the outer circumferential surface of the pipe sleeve 500 is provided with two air inlets, which may be disposed oppositely. A sealing plate 510 is provided at one end of the tube housing 500. The sealing plate 510 is a circular plate, and the sealing plate 510 is provided with anti-slip patterns along the circumferential surface thereof.
In this embodiment, the air inlet, the first inlet and the second inlet are all rectangular openings and are of uniform size. Of course, a design with a circular opening is not excluded.
The pipe sleeve 500 is sleeved at the rear end of the first heat exchange pipe, and a first inlet which can be communicated with the air inlet is formed in the peripheral surface of the first heat exchange pipe; the front end of the second heat exchange tube is sleeved with the tube sleeve 500, and the outer peripheral surface of the second heat exchange tube is provided with a second inlet which can be communicated with the air inlet.
As shown in fig. 4, the first heat exchange tube and the second heat exchange tube are both circular tubes 200 of the same specification, and one end of each tube 200 is provided with a rectangular opening 201 corresponding to an air inlet. Hold shrouding 510 and rotate arbitrary angle when the staff, can adjust the overlap area size between air inlet and the rectangle opening 201 to the control flows into the cold wind volume of pipe fitting 200, and then controls the slow cooling degree in slow cold chamber 100, prevents that the cold crack condition from appearing in the ceramic tile.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the utility model as set forth in the claims appended hereto.
Claims (5)
1. A tunnel kiln slow cooling area structure comprises a slow cooling chamber (100), wherein a stick (110) used for conveying tiles is arranged in the slow cooling chamber (100), and a plurality of sticks (110) are arranged at intervals along the conveying direction of the tiles; its characterized in that, tunnel cave slow cooling district structure still includes:
the air draft assembly comprises a fan (400) and an air draft pipe; the air inlet end of the fan (400) is connected with one end of the exhaust pipe;
the first heat exchange assembly (210) comprises a plurality of first heat exchange tubes positioned above the stick (110), the plurality of first heat exchange tubes are arranged at intervals along the tile conveying direction, the rear ends of the first heat exchange tubes are provided with first air inlets, and the front ends of the first heat exchange tubes are communicated with the air exhaust pipes;
the second heat exchange assembly (220) comprises a plurality of second heat exchange tubes positioned above the stick (110), the plurality of second heat exchange tubes are arranged at intervals along the tile conveying direction, a second air inlet is formed in the front end of each second heat exchange tube, and the rear ends of the second heat exchange tubes are communicated with the air exhaust pipes; the first heat exchange assemblies (210) and the second heat exchange assemblies (220) are alternately arranged along the tile conveying direction.
2. The slow cooling zone structure of a tunnel kiln as claimed in claim 1, further comprising a pipe sleeve (500); an air inlet is formed in the outer peripheral surface of the pipe sleeve (500), and a sealing plate (510) is arranged at one end of the pipe sleeve (500); the pipe sleeve (500) is sleeved at the rear end of the first heat exchange pipe, and a first inlet which can be communicated with the air inlet is formed in the peripheral surface of the first heat exchange pipe; the front end of the second heat exchange tube is sleeved with the tube sleeve (500), and the outer peripheral surface of the second heat exchange tube is provided with a second inlet which can be communicated with the air inlet.
3. The slow cooling zone structure of a tunnel kiln according to claim 2, wherein the sealing plate (510) is a circular plate, and the sealing plate (510) is provided with anti-slip lines along its circumferential surface.
4. The slow cooling zone structure of a tunnel kiln as claimed in claim 3, wherein the air inlet, the first inlet and the second inlet are rectangular openings.
5. The slow cooling zone structure of a tunnel kiln as claimed in claim 4, wherein the first heat exchange tube and the second heat exchange tube are on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121957164.5U CN215810124U (en) | 2021-08-19 | 2021-08-19 | Tunnel kiln slow cooling area structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121957164.5U CN215810124U (en) | 2021-08-19 | 2021-08-19 | Tunnel kiln slow cooling area structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215810124U true CN215810124U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121957164.5U Active CN215810124U (en) | 2021-08-19 | 2021-08-19 | Tunnel kiln slow cooling area structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215810124U (en) |
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2021
- 2021-08-19 CN CN202121957164.5U patent/CN215810124U/en active Active
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