CN216482200U - Kiln tail cooling device for tunnel kiln - Google Patents
Kiln tail cooling device for tunnel kiln Download PDFInfo
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- CN216482200U CN216482200U CN202122934570.6U CN202122934570U CN216482200U CN 216482200 U CN216482200 U CN 216482200U CN 202122934570 U CN202122934570 U CN 202122934570U CN 216482200 U CN216482200 U CN 216482200U
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- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000007664 blowing Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010304 firing Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a kiln tail cooling device for a tunnel kiln, which comprises a tunnel kiln body, wherein a kiln tail section of the tunnel kiln body is provided with a hollow cavity part and an exhaust pipe, and one end of the exhaust pipe penetrates through the hollow cavity part and is communicated with the inside of the tunnel kiln body; the hollow cavity part is internally provided with a cut-off air curtain mechanism and a heat exchange cooling mechanism in sequence along the advancing direction of a kiln car in the tunnel kiln body; the kiln tail cooling device can generate an air wall for isolating airflow between a burning product to be cooled and a burning zone of the tunnel kiln, so that most heat is isolated for the cooling zone, and the cooling effect of an external cold source is improved; meanwhile, the heat exchange cooling mechanism can cool the wall of the tunnel kiln and blow cold air inwards, so that the cooling effect of a fired product is improved and the firing quality of the fired product is ensured.
Description
Technical Field
The utility model relates to the technical field of tunnel kilns, in particular to a kiln tail cooling device for a tunnel kiln.
Background
The tunnel kiln is a main device in the production process of refractory materials, plays a key role in the quality of the refractory materials, is generally a long linear tunnel, two sides and the top of the tunnel kiln are provided with fixed walls and vault, a kiln car runs on a track laid at the bottom, combustion equipment is arranged on two sides of the middle part of the tunnel kiln to form a fixed high-temperature zone, namely a burning zone, high-temperature flue gas generated by combustion flows towards the kiln head direction along the tunnel under the action of a chimney at the front end of the tunnel kiln or an induced draft fan, products entering the tunnel kiln are gradually preheated, the section forms a preheating zone of the tunnel kiln, cold air is blown into the tail of the tunnel kiln to cool the products at the rear section in the tunnel kiln, the blown cold air flows through the products to be heated, and then is pumped out and sent to a drier to be used as a heat source for drying green bodies, and the section forms a cooling zone of the tunnel kiln.
The traditional tunnel kiln cooling zone can only cool the fired product in a cold air feeding mode, however, when cold air provided from the outside does not enter the kiln tail, the hot air at the front end or the firing zone is still blown away or wrapped into hot air, and a good cooling effect cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a kiln tail cooling device for a tunnel kiln, which aims to solve the problem that when the tunnel kiln tail is cooled, cold air provided from the outside does not enter the kiln tail, hot air at the front end is still blown away or wrapped into hot air, and a fired product cannot be cooled well.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a kiln tail cooling device for a tunnel kiln comprises a tunnel kiln body, wherein a hollow cavity part and an exhaust pipe are arranged at the kiln tail section of the tunnel kiln body, and one end of the exhaust pipe penetrates through the hollow cavity part and is communicated with the inside of the tunnel kiln body;
wherein, a cut-off air curtain mechanism and a heat exchange cooling mechanism are sequentially arranged in the hollow cavity part along the advancing direction of the kiln car in the tunnel kiln body;
the intercepting air curtain mechanism comprises air blowing pipes, an air pump and a flow valve, at least one air blowing pipe is installed in the hollow cavity part in a U shape, the air outlet end of the air blowing pipe is located inside the tunnel kiln body, and the air pump is communicated with the air inlet end of the air blowing pipe through the flow valve;
the heat exchange cooling mechanism comprises a baffle wall pipe, a circulating pump, a blower and air supply pipes, wherein the baffle wall pipe is installed in the hollow cavity part in a U shape, the circulating pump is communicated with the baffle wall pipe through a water supplementing tank and forms a closed loop passage, the air supply pipes are installed on the outer wall of the tunnel kiln body in a U shape, the air outlet end of each air supply pipe is communicated with the inside of the hollow cavity part, and the air outlet end of the blower is communicated with the air inlet end of each air supply pipe;
and a plurality of air outlet notches which are arranged in a U shape and communicated with the inside of the tunnel kiln body are arranged on the inner wall of the hollow cavity part.
The further technical scheme is as follows: the cross section of the baffle wall pipe is a semicircular pipe.
The further technical scheme is as follows: and the air outlet end of the air blowing pipe is obliquely arranged and faces the feed end of the tunnel kiln body.
The further technical scheme is as follows: and the air outlet notch is hinged with a sealing single plate through a torsional spring.
The further technical scheme is as follows: the exhaust pipe is a telescopic sleeve.
The further technical scheme is as follows: and the air outlet end of the exhaust pipe is communicated with an exhaust fan.
Compared with the prior art, the utility model can at least achieve one of the following beneficial effects:
the utility model provides a kiln tail cooling device for a tunnel kiln, which can be used for generating an air wall for isolating airflow between a burning product to be cooled and a burning zone of the tunnel kiln, isolating most heat for the cooling zone and improving the cooling effect of an external cold source; meanwhile, the heat exchange cooling mechanism can cool the wall of the tunnel kiln and blow cold air inwards, so that the cooling effect of a fired product is improved, and the firing quality of the fired product is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a kiln tail cooling device for a tunnel kiln.
Fig. 2 is a schematic view of another view angle of fig. 1 according to the present invention.
Reference numerals: 1. a tunnel kiln body; 2. a hollow cavity portion; 3. an exhaust pipe; 4. an air curtain intercepting mechanism; 41. an air blowing pipe; 42. an air pump; 43. a flow valve; 5. a heat exchange cooling mechanism; 51. a baffle wall tube; 52. a circulation pump; 53. a blower; 54. an air supply pipe; 6. kiln car; 7. and (5) sealing the single plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the kiln tail cooling device for the tunnel kiln has the following structure: the tunnel kiln comprises a tunnel kiln body 1, wherein a hollow cavity part 2 and an exhaust pipe 3 are arranged at the kiln tail section of the tunnel kiln body 1, and one end of the exhaust pipe 3 penetrates through the hollow cavity part 2 and is communicated with the interior of the tunnel kiln body 1; the inside of the hollow cavity part 2 is sequentially provided with a cutoff air curtain mechanism 4 and a heat exchange cooling mechanism 5 along the advancing direction of a kiln car 6 in the tunnel kiln body 1; the intercepting air curtain mechanism 4 comprises air blowing pipes 41, an air pump 42 and a flow valve 43, wherein at least one air blowing pipe 41 is installed in the hollow cavity part 2 in a U shape, the air outlet end of the air blowing pipe 41 is positioned in the tunnel kiln body 1, and the air pump 42 is communicated with the air inlet end of the air blowing pipe 41 through the flow valve 43; the heat exchange cooling mechanism 5 comprises a baffle wall pipe 51, a circulating pump 52, a blower 53 and air supply pipes 54, wherein the baffle wall pipe 51 is installed in the hollow cavity part 2 in a U shape, the circulating pump 52 is communicated with the baffle wall pipe 51 through a water supplementing tank and forms a closed loop passage, the air supply pipes 54 are installed on the outer wall of the tunnel kiln body 1 in a U shape, the air outlet end of each air supply pipe 54 is communicated with the inside of the hollow cavity part 2, and the air outlet end of the blower 53 is communicated with the air inlet end of each air supply pipe 54; the inner wall of the hollow cavity part 2 is provided with a plurality of air outlet notches which are arranged in a U shape and are communicated with the inside of the tunnel kiln body 1.
The working process of the utility model is as follows: when the kiln car bears the weight of and burns the finished product and reach the kiln tail (cooling zone promptly), the air pump 42 of the air curtain mechanism 4 that dams is opened, at least one (preferably two) gas blow pipe 41 erupts the air current and form with tunnel kiln passageway cross-section assorted air curtain, cut high temperature air current, prevent that it from getting into the kiln tail, the baffling wall pipe 51 of rethread heat transfer cooling body 5 cools off the kiln wall of kiln tail section simultaneously, increase the refrigerated surface of kiln tail, and combine the air supply pipe 54 of blowing, go into the kiln tail with cold wind through the air-out notch, lower the temperature to burning the finished product, kiln tail gas flows and discharges through blast pipe 3 at last. The kiln tail cooling device can generate an air wall for isolating airflow between a burning finished product to be cooled and a burning zone of the tunnel kiln, so that most heat is isolated for the cooling zone, and the cooling effect of an external cold source is improved; meanwhile, the heat exchange cooling mechanism can cool the wall of the tunnel kiln and blow cold air inwards, so that the cooling effect of a fired product is improved, and the firing quality of the fired product is ensured.
Preferably, the baffle tube 51 is a semicircular tube in cross section.
The plane part of the semicircular pipe can be closer to the binding surface of the kiln wall, and the conduction effect is better.
Preferably, the air outlet end of the air blowing pipe 41 is obliquely arranged and faces the feeding end of the tunnel kiln body 1.
The gas blowing pipe 41 forms an air curtain between the kiln tail and the burning zone, the size of the air curtain is adjusted according to the flow valve 43, and the inclination angle is determined according to the actual situation.
Preferably, the air outlet notch is hinged with a sealing single plate 7 through a torsion spring.
The sealing single plate 7 can prevent the airflow in the kiln from flowing backwards into the heat exchange cooling mechanism 5, and prevent the equipment from being damaged.
Preferably, the exhaust pipe 3 is a telescopic pipe.
The telescopic part of the telescopic pipe is lifted at the tail of the kiln by the existing driving mechanism (means of matching a motor with a gear rack structure and the like), the telescopic part (air inlet) of the telescopic pipe can be close to a kiln car as far as possible to discharge the heat of the kiln car, the cooling effect of fired products is improved, and the like,
Preferably, the air outlet end of the exhaust pipe 3 is communicated with an exhaust fan.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (6)
1. The utility model provides a kiln tail cooling device for tunnel cave, includes tunnel cave body (1), its characterized in that: a hollow cavity part (2) and an exhaust pipe (3) are arranged at the kiln tail section of the tunnel kiln body (1), and one end of the exhaust pipe (3) penetrates through the hollow cavity part (2) to be communicated with the interior of the tunnel kiln body (1); wherein,
the inside of the hollow cavity part (2) is sequentially provided with a cut-off air curtain mechanism (4) and a heat exchange cooling mechanism (5) along the advancing direction of a kiln car (6) in the tunnel kiln body (1);
the intercepting air curtain mechanism (4) comprises air blowing pipes (41), an air pump (42) and a flow valve (43), at least one air blowing pipe (41) is installed in the hollow cavity part (2) in a U shape, the air outlet end of the air blowing pipe (41) is located inside the tunnel kiln body (1), and the air pump (42) is communicated with the air inlet end of the air blowing pipe (41) through the flow valve (43);
the heat exchange cooling mechanism (5) comprises a baffle wall pipe (51), a circulating pump (52), a blower (53) and air supply pipes (54), wherein the baffle wall pipe (51) is installed in the hollow cavity part (2) in a U shape, the circulating pump (52) is communicated with the baffle wall pipe (51) through a water supplementing box and forms a closed loop passage, the air supply pipes (54) are installed on the outer wall of the tunnel kiln body (1) in a U shape, the air outlet end of each air supply pipe (54) is communicated with the inside of the hollow cavity part (2), and the air outlet end of the blower (53) is communicated with the air inlet end of each air supply pipe (54);
the inner wall of the hollow cavity part (2) is provided with a plurality of air outlet notches which are arranged in a U shape and communicated with the inside of the tunnel kiln body (1).
2. The kiln tail cooling device for the tunnel kiln as claimed in claim 1, wherein: the cross section of the baffle wall pipe (51) is a semicircular pipe.
3. The kiln tail cooling device for the tunnel kiln as claimed in claim 1, wherein: the air outlet end of the air blowing pipe (41) is obliquely arranged and faces the feed end of the tunnel kiln body (1).
4. The kiln tail cooling device for the tunnel kiln as claimed in claim 1, wherein: the air outlet notch is hinged with a sealing single plate (7) through a torsion spring.
5. The kiln tail cooling device for the tunnel kiln as claimed in claim 1, wherein: the exhaust pipe (3) is a telescopic sleeve.
6. The kiln tail cooling device for the tunnel kiln as claimed in claim 1, wherein: and the air outlet end of the exhaust pipe (3) is communicated with an exhaust fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934570.6U CN216482200U (en) | 2021-11-26 | 2021-11-26 | Kiln tail cooling device for tunnel kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122934570.6U CN216482200U (en) | 2021-11-26 | 2021-11-26 | Kiln tail cooling device for tunnel kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216482200U true CN216482200U (en) | 2022-05-10 |
Family
ID=81400894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122934570.6U Active CN216482200U (en) | 2021-11-26 | 2021-11-26 | Kiln tail cooling device for tunnel kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216482200U (en) |
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2021
- 2021-11-26 CN CN202122934570.6U patent/CN216482200U/en active Active
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