CN215447381U - Tunnel cave air supply mechanism - Google Patents
Tunnel cave air supply mechanism Download PDFInfo
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- CN215447381U CN215447381U CN202121827794.0U CN202121827794U CN215447381U CN 215447381 U CN215447381 U CN 215447381U CN 202121827794 U CN202121827794 U CN 202121827794U CN 215447381 U CN215447381 U CN 215447381U
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- tunnel kiln
- air supply
- fixedly connected
- pipe
- fan
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a tunnel kiln air supply mechanism, which relates to the technical field of refractory material production and comprises a tunnel kiln, a motor, a fan, an air supply pipeline and a waste heat utilization device; a motor and a fan are arranged on the outer side edge of the tunnel kiln; the fan is fixedly connected with the tunnel kiln through an air supply pipeline; a waste heat utilization device is arranged on the tunnel kiln; the arrangement of the first branch pipe and the second branch pipe can simultaneously supply air to the top end and the bottom end of the tunnel kiln, stir the airflow at the bottom of the kiln to rise, fully mix the hot flue gas in the kiln, reduce the temperature difference of the upper part and the lower part in the tunnel kiln, and improve the production efficiency and the product quality; the arrangement of the electric heating pipe can preheat air conveyed into the tunnel kiln, so that the firing efficiency and the firing quality of the tunnel kiln are improved; the heat emitted by the tunnel kiln in the production process is absorbed by water in the water tank, the water temperature rises, and the hot water is discharged through the water outlet for workers to use.
Description
Technical Field
The utility model relates to an air supply mechanism, in particular to an air supply mechanism of a tunnel kiln.
Background
The tunnel kiln is a modern continuous sintering thermal equipment and is widely used for the roasting production of refractory materials. Because the tunnel kiln is closed, the tunnel kiln needs supplementary air to support combustion during operation. The interior of the tunnel kiln is in a negative pressure state during working, so that a large amount of cold air leaks into the interface of the tunnel kiln, such as the interface of a kiln opening and a kiln wall, the cold air is high in density and is deposited at the lower part of the tunnel kiln, and the hot smoke with low density flows upwards, so that the temperature difference between the upper part and the lower part in the kiln is large, the stress of a grinding tool in the tunnel kiln is large in the firing process, the grinding tool is easy to crack, the quality of a final product is influenced, the firing time is prolonged, and the working efficiency is reduced; and the tunnel kiln consumes much energy, and a large amount of heat and waste heat are dissipated to the air in vain, thereby causing great waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to ensure that the air in the upper part and the lower part of the kiln is mixed more uniformly; the excess heat of the tunnel kiln is utilized.
In order to achieve the purpose, the utility model provides the following technical scheme:
a tunnel kiln air supply mechanism comprises a tunnel kiln, a motor, a fan, an air supply pipeline and a waste heat utilization device; a motor and a fan are arranged on the outer side edge of the tunnel kiln; the fan is fixedly connected with the tunnel kiln through an air supply pipeline; and a waste heat utilization device is arranged on the tunnel kiln.
Preferably: the air supply pipeline comprises an air supply pipe, a connecting pipe, a first branch pipe and a second branch pipe; the connecting pipe is arranged right above the tunnel kiln along the length direction of the tunnel kiln; one end of the blast pipe is fixedly connected with the top surface of the shell of the fan, and the other end of the blast pipe is fixedly connected with a through hole formed in the center of the top surface of the connecting pipe; an electromagnetic regulating valve is arranged on the blast pipe; the bottom surface of the connecting pipe is uniformly provided with a plurality of through holes along the length direction, the through holes are respectively and fixedly connected with the top ends of the first branch pipes, and the bottom ends of the first branch pipes penetrate through the through holes arranged at the corresponding positions of the top wall of the tunnel kiln and are fixedly connected with the top wall of the tunnel kiln; a set of through holes are symmetrically formed in two sides of the connecting pipe corresponding to each section of the first branch pipe, the through holes are respectively and fixedly connected with one ends of the second branch pipes, and the other ends of the second branch pipes penetrate through the through holes formed in the side wall of the bottom end of the tunnel kiln and are fixedly connected with the side wall of the tunnel kiln.
Preferably: the fan comprises a shell, fan blades and an electric heating pipe; the rotating shaft of the fan blade is rotatably connected to the inner side wall of the shell through a bearing; the output end of the motor passes through a through hole formed in the side wall of the shell and is fixedly connected with a rotating shaft of the fan blade; a plurality of electric heating pipes are uniformly distributed in the shell, two ends of each electric heating pipe are respectively and fixedly connected to two inner side walls of the shell, and the electric heating pipes are electrically connected with an external power supply through a switch; the top surface of the shell is provided with a through hole at one end far away from the motor, and the through hole is fixedly connected with an air supply pipe.
Preferably: the waste heat utilization device comprises a water tank; a section of groove is formed in the side wall of the top end of the tunnel kiln; a water tank is fixedly connected in the groove; the top end of the outer side surface of the water tank is provided with a water inlet; a water outlet is arranged at the bottom end of the outer side surface of the water tank; valves are arranged on the water inlet and the water outlet; the lower half part of the inner side wall of the water tank is provided with a low liquid level alarm.
Due to the adoption of the technical scheme, the utility model has the following advantages:
the arrangement of the first branch pipe and the second branch pipe can simultaneously supply air to the top end and the bottom end of the tunnel kiln, stir the airflow at the bottom of the kiln to rise, fully mix the hot flue gas in the kiln, reduce the temperature difference of the upper part and the lower part in the tunnel kiln, and improve the production efficiency and the product quality; the arrangement of the electric heating pipe can preheat air conveyed into the tunnel kiln, so that the firing efficiency and the firing quality of the tunnel kiln are improved; the heat emitted by the tunnel kiln in the production process is absorbed by water in the water tank, the water temperature rises, and the hot water is discharged through the water outlet for workers to use.
Drawings
Fig. 1 is a schematic structural diagram of an air supply mechanism of a tunnel kiln.
Fig. 2 is a schematic top view of the air blowing mechanism of the tunnel kiln.
Fig. 3 is a schematic structural diagram of a fan in the air supply mechanism of the tunnel kiln.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, an air supply mechanism for a tunnel kiln includes a tunnel kiln 1, a motor 2, a fan 3, an air supply duct 4, and a waste heat utilization device 5; a motor 2 and a fan 3 are arranged on the outer side edge of the tunnel kiln 1; the fan 3 is fixedly connected with the tunnel kiln 1 through an air supply pipeline 4; the tunnel kiln 1 is provided with a waste heat utilization device 5.
The air supply duct 4 comprises an air supply pipe 41, a connecting pipe 42, a first branch pipe 43 and a second branch pipe 44; the connecting pipe 42 is arranged right above the tunnel kiln 1 along the length direction of the tunnel kiln 1; one end of the blast pipe 41 is fixedly connected with the top surface of the shell of the fan 3, and the other end of the blast pipe 41 is fixedly connected with a through hole arranged in the center of the top surface of the connecting pipe 42; the air supply pipe 41 is provided with the electromagnetic regulating valve 45, so that the automation degree is improved, the required air quantity in the tunnel kiln 1 can be regulated, and the energy is saved and the consumption is reduced; a plurality of through holes are uniformly formed in the bottom surface of the connecting pipe 42 along the length direction, the top ends of the first branch pipes 43 are fixedly connected to the through holes respectively, and the bottom ends of the first branch pipes 43 penetrate through the through holes formed in the corresponding positions of the top surface of the tunnel kiln 1 and are fixedly connected with the top wall of the tunnel kiln 1; a group of through holes are symmetrically formed in the two sides of the connecting pipe 42 corresponding to each section of the first branch pipe 43, the through holes are respectively and fixedly connected with one end of the second branch pipe 44, and the other end of the second branch pipe 44 penetrates through the through hole formed in the side wall of the bottom end of the tunnel kiln 1 and is fixedly connected with the side wall of the tunnel kiln 1; the fan 3 sends wind into the connecting pipe 42 through the blast pipe 41 and then simultaneously sends the wind into the first branch pipe 43 and the second branch pipe 44, the first branch pipe 43 and the second branch pipe 44 simultaneously supply wind to the top end and the bottom end of the tunnel kiln 1, airflow at the bottom of the stirring kiln rises, hot smoke in the kiln is fully mixed, the temperature difference of the upper part and the lower part inside the tunnel kiln 1 is reduced, and the production efficiency and the product quality are improved.
The fan 3 comprises a shell 31, fan blades 32 and an electric heating pipe 33; the rotating shaft of the fan blade 32 is rotatably connected to the inner side wall of the shell 31 through a bearing; the output end of the motor 2 passes through a through hole formed in the side wall of the shell 31 and is fixedly connected with a rotating shaft of the fan blade 32; the plurality of electric heating pipes 33 are uniformly distributed inside the shell, two ends of each electric heating pipe 33 are respectively and fixedly connected to two inner side walls of the shell 31, and the electric heating pipes 33 are electrically connected with an external power supply through a switch; the electric heating pipe 33 can preheat the air conveyed into the tunnel kiln 1, so that the firing efficiency and the firing quality of the tunnel kiln 1 are improved; one end of the top surface of the shell 31, which is far away from the motor 2, is provided with a through hole, and the through hole is fixedly connected with an air supply pipe 41; the output end of the motor 2 drives the fan blade 32 to rotate through the rotating shaft of the fan blade 32, and the fan blade 32 blows the air heated by the electric heating pipe 33 into the air supply duct 4.
The waste heat utilization device 5 comprises a water tank 51; a section of groove is formed in the side wall of the top end of the tunnel kiln 1; a water tank 51 is fixedly connected in the groove; the top end of the outer side surface of the water tank 51 is provided with a water inlet 52; a water outlet 53 is arranged at the bottom end of the outer side surface of the water tank 51; the water inlet 52 and the water outlet 53 are both provided with valves 54; the lower half of the inner side wall of the water tank 51 is provided with a low liquid level alarm 55, when the water level in the water tank 51 is low, the low liquid level alarm 55 can give an alarm to remind a worker to add cold water into the water tank 51 through the water inlet 52, the heat emitted by the tunnel kiln 1 in the production process is absorbed by the water in the water tank 51, the water temperature rises, and the hot water is discharged through the water outlet 53 for the worker to use.
Claims (4)
1. A tunnel kiln air supply mechanism comprises a tunnel kiln (1), a motor (2), a fan (3), an air supply pipeline (4) and a waste heat utilization device (5); the tunnel kiln is characterized in that a motor (2) and a fan (3) are arranged on the outer side edge of the tunnel kiln (1); the fan (3) is fixedly connected with the tunnel kiln (1) through an air supply pipeline (4); the tunnel kiln (1) is provided with a waste heat utilization device (5).
2. The tunnel kiln air supply mechanism according to claim 1, wherein the air supply duct (4) includes an air supply duct (41), a connection pipe (42), a first branch pipe (43), and a second branch pipe (44); the connecting pipe (42) is arranged right above the tunnel kiln (1) along the length direction of the tunnel kiln (1); one end of the blast pipe (41) is fixedly connected with the top surface of the shell of the fan (3), and the other end of the blast pipe (41) is fixedly connected with a through hole arranged at the center of the top surface of the connecting pipe (42); an electromagnetic regulating valve (45) is arranged on the blast pipe (41); a plurality of through holes are uniformly formed in the bottom surface of the connecting pipe (42) along the length direction, the top ends of the first branch pipes (43) are fixedly connected to the through holes respectively, and the bottom ends of the first branch pipes (43) penetrate through the through holes formed in the corresponding positions of the top surface of the tunnel kiln (1) and are fixedly connected with the top wall of the tunnel kiln (1); a set of through holes are symmetrically formed in two sides of the connecting pipe (42) corresponding to each section of the first branch pipe (43), the through holes are respectively and fixedly connected with one end of the second branch pipe (44), and the other end of the second branch pipe (44) penetrates through the through hole formed in the bottom end side wall of the tunnel kiln (1) and is fixedly connected with the side wall of the tunnel kiln (1).
3. The tunnel kiln air supply mechanism according to claim 1, characterized in that the fan (3) comprises a housing (31), fan blades (32) and an electric heating pipe (33); the rotating shaft of the fan blade (32) is rotatably connected to the inner side wall of the shell (31) through a bearing; the output end of the motor (2) penetrates through a through hole formed in the side wall of the shell (31) and is fixedly connected with a rotating shaft of the fan blade (32); the plurality of electric heating pipes (33) are uniformly distributed inside the shell, two ends of each electric heating pipe (33) are respectively and fixedly connected to two inner side walls of the shell (31), and the electric heating pipes (33) are electrically connected with an external power supply through a switch; one end of the top surface of the shell (31) far away from the motor (2) is provided with a through hole, and the through hole is fixedly connected with an air supply pipe (41).
4. The tunnel kiln air supply mechanism according to claim 1, wherein the waste heat utilization device (5) comprises a water tank (51); a section of groove is formed in the side wall of the top end of the tunnel kiln (1); a water tank (51) is fixedly connected in the groove; a water inlet (52) is arranged at the top end of the outer side surface of the water tank (51); a water outlet (53) is arranged at the bottom end of the outer side surface of the water tank (51); valves (54) are arranged on the water inlet (52) and the water outlet (53); a low liquid level alarm (55) is arranged on the lower half part of the inner side wall of the water tank (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827794.0U CN215447381U (en) | 2021-08-06 | 2021-08-06 | Tunnel cave air supply mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121827794.0U CN215447381U (en) | 2021-08-06 | 2021-08-06 | Tunnel cave air supply mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215447381U true CN215447381U (en) | 2022-01-07 |
Family
ID=79691985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121827794.0U Active CN215447381U (en) | 2021-08-06 | 2021-08-06 | Tunnel cave air supply mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215447381U (en) |
-
2021
- 2021-08-06 CN CN202121827794.0U patent/CN215447381U/en active Active
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