CN214147950U - Waste gas treatment device of enameled wire baking furnace - Google Patents
Waste gas treatment device of enameled wire baking furnace Download PDFInfo
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- CN214147950U CN214147950U CN202023205666.0U CN202023205666U CN214147950U CN 214147950 U CN214147950 U CN 214147950U CN 202023205666 U CN202023205666 U CN 202023205666U CN 214147950 U CN214147950 U CN 214147950U
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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
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to an enameled wire baking furnace waste gas treatment device, which comprises a baking furnace and a waste gas pipeline; both ends of the baking furnace are respectively provided with an inlet and an outlet for the enameled wire to pass through; the first end of the waste gas pipeline is communicated with the position of the baking furnace close to the tail end of the baking furnace; a first catalytic combustion chamber, a second catalytic combustion chamber and a third catalytic combustion chamber are sequentially arranged in the waste gas pipeline; the second end of the waste gas pipeline is provided with a blower; and the waste gas generated in the baking furnace is sucked by the blower and sequentially passes through the first catalytic combustion chamber, the second catalytic combustion chamber and the third catalytic combustion chamber, and then is discharged out of the air from the second end of the waste gas pipeline. Enameled wire baking furnace exhaust treatment device, through setting up three-layer catalytic combustion room, make the nearly complete combustion of organic solvent of japanning evaporation, reach the highest effect, in with exhaust emission to reach standard atmosphere, reduce to extremely low to environmental pollution.
Description
Technical Field
The utility model relates to an enameled wire production technology exhaust-gas treatment technical field especially relates to an enameled wire baking furnace exhaust treatment device.
Background
An enamelling machine is a device for processing a wire into an enamelled wire, which consists of an internal wire and an insulating layer wrapping the wire. The insulation layer currently typically comprises an acetal layer, a polyester layer, a polyurethane layer, a polyimide layer. After the insulating layer is coated, the wire needs to be dried in an oven so that the insulating layer is reliably cured on the surface of the wire.
Because the used insulating paint contains toluene, xylene, cresol and other substances harmful to human bodies, a large amount of solvent vapor is generated by high-temperature baking. In the production, if the waste gas is directly discharged into the atmosphere without being subjected to necessary treatment, serious pollution is easily caused, and the solvent is volatilized to generate toxic gas to cause air pollution.
Solvent vapor and lysate generated in the baking process of the existing enameled wire baking oven are combusted in the first layer of high-temperature catalytic chamber, the VOC content does not reach the standard, and then the solvent vapor and the lysate enter the second layer of catalytic chamber for combustion, so that the national standard requirement still cannot be met, and even if a ceramic catalytic block is installed in the catalytic combustion chamber on the baking oven of the existing enameled equipment manufacturer, the combustion effect is still poor through process debugging.
In addition, most of the existing enameled wire baking ovens are hot air circulating baking ovens, the effect of enameled wire painting and curing is achieved by continuously circulating hot air in a hearth, but the circulating process is single, so that the heat circulating efficiency is low, and energy is wasted.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model aims at overcoming the shortcoming and not enough among the prior art, providing an enameled wire baking furnace exhaust treatment device.
An enameled wire baking furnace waste gas treatment device comprises a baking furnace and a waste gas pipeline;
both ends of the baking furnace are respectively provided with an inlet and an outlet for the enameled wire to pass through;
the first end of the waste gas pipeline is communicated with the position of the baking furnace close to the tail end of the baking furnace; a first catalytic combustion chamber, a second catalytic combustion chamber and a third catalytic combustion chamber are sequentially arranged in the waste gas pipeline; the second end of the waste gas pipeline is provided with a blower;
and the waste gas generated in the baking furnace is sucked by the blower and sequentially passes through the first catalytic combustion chamber, the second catalytic combustion chamber and the third catalytic combustion chamber, and then is discharged out of the air from the second end of the waste gas pipeline.
The waste gas treatment device of the enameled wire baking furnace of the utility model has the advantages that the three-layer catalytic combustion chamber is arranged, so that the organic solvent evaporated by painting almost completely burns, the highest effect is achieved, the standard waste gas is discharged into the atmosphere, and the environmental pollution is reduced to the lowest; the metal catalytic block can be preferably adopted in each catalytic combustion chamber, the catalytic temperature is increased to 450 ℃, the catalytic combustion effect is obviously improved, more than 95% of the effective standard requirement of VOC concentration can be achieved, the discharged outdoor waste gas can meet the national environmental protection standard value, the environment is protected, and the blue sky is protected.
Further, the combustion temperature of the third catalytic combustor was 450 ℃.
Further, the heat exchanger also comprises a first fan and a first heat exchange pipe; the first fan is connected with the input end of the first heat exchange pipe; the tube body of the first heat exchange tube is inserted in the waste gas pipeline, is positioned between the second catalytic combustion chamber and the third catalytic combustion chamber and is used for exchanging heat with waste gas in the waste gas pipeline; the output end of the first heat exchange pipe is communicated with the baking furnace.
Adopt above-mentioned further scheme's beneficial effect is, through setting up first fan and first heat exchange tube, the waste gas heat in the usable waste gas pipeline, and then cyclic utilization is used in the baking furnace, the energy can be saved.
Further, the device also comprises a second fan and a return pipe; the second fan is connected with the return pipe and provides power for air in the return pipe; the input and the output of back flow respectively with exhaust gas piping intercommunication, the input of back flow corresponds and is located the exit of second catalytic combustion room, the output of back flow corresponds and is located the entrance of first catalytic combustion room, the back flow with the waste gas water conservancy diversion after the second catalysis to the entrance of first catalytic combustion room.
Adopt above-mentioned further scheme's beneficial effect to be, through setting up second fan and back flow, can carry out catalytic combustion once more with the waste gas that is not fully catalyzed combustion by the second catalytic combustion chamber, make VOC volume up to standard.
Further, the heat exchanger also comprises a second heat exchange tube; the input end of the second heat exchange tube is connected with the output end of the first heat exchange tube; the second heat exchange tube is wound on the outer side of the return tube, and air in the tube body of the second heat exchange tube exchanges heat with waste gas in the return tube; and the output end of the second heat exchange tube is communicated with the baking furnace.
The beneficial effects of adopting above-mentioned further scheme are that, can carry out the heat transfer with the waste gas in the return pipe through setting up the second heat exchange tube, further improve thermal cycle efficiency, utilize the unnecessary heat of waste gas, and carry out catalytic combustion again after properly cooling down waste gas, can improve catalytic combustion effect.
Furthermore, the output end of the second heat exchange tube is connected with a plurality of branch tubes, and the output end of each branch tube is communicated with the baking furnace; the branch pipes are uniformly distributed along the circumferential direction of the side surface of the baking furnace and the length direction of the baking furnace.
The beneficial effect who adopts above-mentioned further scheme is that, through setting up many branch pipes, can make the fresh air after the heating evenly get into the baking furnace, make the inside ambient temperature of baking furnace even, and then can improve the enameled wire japanning solidification effect.
Furthermore, five groups of branch pipes are arranged along the length direction of the baking furnace; the branch pipes of each group are uniformly distributed around the circumferential direction of the side surface of the baking furnace, and the number of the branch pipes of each group is six.
The first thermocouple and the second thermocouple are respectively arranged at the inlet of the first catalytic combustion chamber and the outlet of the second catalytic combustion chamber and are used for detecting the ambient temperature; the first thermocouple and the second thermocouple are simultaneously electrically connected with the second motor, and the rotating speed of the second motor is regulated according to the temperatures of the first thermocouple and the second thermocouple.
The beneficial effect who adopts above-mentioned further scheme is that, through setting up first thermocouple and second thermocouple, can improve waste gas heat utilization ratio, improve heat exchange efficiency according to the rotational speed of the temperature regulation second motor of the entry of first catalytic combustion room, the export of second catalytic combustion room.
Further, the device also comprises an automatic VOC detection device; VOC automatic checkout device sets up exhaust duct's second end exit for detect the exhaust index of exhaust duct second end exit.
The beneficial effect who adopts above-mentioned further scheme is that, through setting up VOC automatic checkout device, but the waste gas index of real-time detection exhaust duct export, and then the rotational speed of adjustable first motor and second motor, and then adjust the catalytic speed of exhaust gas recirculation, also can improve waste gas heat utilization, improve heat exchange efficiency.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of the waste gas treatment device of the enameled wire baking furnace of the present invention;
FIG. 2 is a schematic structural view of the baking furnace and the exhaust gas duct of the present invention;
fig. 3 is a schematic sectional view of the structure at a-a in fig. 1.
In the figure: 10. baking furnace; 20. an exhaust gas conduit; 21. a blower; 31. a first catalytic combustor; 32. a second catalytic combustor; 33. a third catalytic combustor; 41. a first fan; 42. a first heat exchange tube; 43. a second fan; 44. a return pipe; 45. a second heat exchange tube; 46. a branch pipe; 51. a first thermocouple; 52. a second thermocouple; 60. VOC automatic checkout device.
Detailed Description
Referring to fig. 1 to 3, the waste gas treatment device of the enamelled wire baking furnace 10 of the present embodiment includes a baking furnace 10, a waste gas pipeline 20, a blower 21, a first catalytic combustion chamber 31, a second catalytic combustion chamber 32, a third catalytic combustion chamber 33, a first fan 41, a first heat exchange pipe 42, a second fan 43, a return pipe 44, a second heat exchange pipe 45, a first thermocouple 51, a second thermocouple 52 and an automatic VOC detection device 60;
specifically, both ends of the baking furnace 10 are respectively provided with an inlet and an outlet through which the enameled wire passes;
specifically, a first end of the exhaust gas pipeline 20 is communicated with the baking furnace 10 near the tail end thereof; a first catalytic combustion chamber 31, a second catalytic combustion chamber 32 and a third catalytic combustion chamber 33 are sequentially arranged in the exhaust gas pipeline 20; the metal catalytic blocks can be preferably adopted in each catalytic combustion chamber, and the combustion temperature of the third catalytic combustion chamber is 450 ℃; a second end of the exhaust gas duct 20 is provided with a blower 21;
the exhaust gas generated in the baking furnace 10 is sucked by the blower 21, passes through the first catalytic combustion chamber 31, the second catalytic combustion chamber 32, and the third catalytic combustion chamber 33 in this order, and is discharged to the outside from the second end of the exhaust gas duct 20.
In the preferred embodiment, the first fan 41 is connected to the input end of the first heat exchange pipe 42; the tube body of the first heat exchange tube 42 is inserted into the exhaust gas pipeline 20 and is positioned between the second catalytic combustion chamber 32 and the third catalytic combustion chamber 33, and is used for exchanging heat with the exhaust gas in the exhaust gas pipeline 20;
the second fan 43 is connected with the return pipe 44 and provides power for the air in the return pipe 44; the input end and the output end of the return pipe 44 are respectively communicated with the exhaust gas pipeline 20, the input end of the return pipe 44 is correspondingly positioned at the outlet of the second catalytic combustion chamber 32, the output end of the return pipe 44 is correspondingly positioned at the inlet of the first catalytic combustion chamber 31, and the return pipe 44 guides the exhaust gas after the second catalysis to the inlet of the first catalytic combustion chamber 31;
the input end of the second heat exchange tube 45 is connected with the output end of the first heat exchange tube 42; the second heat exchange tube 45 is wound outside the return tube 44, and air in the tube body of the second heat exchange tube 45 exchanges heat with waste gas in the return tube 44; the output end of the second heat exchange pipe 45 is communicated with the baking furnace 10.
In the preferred embodiment, the output end of the second heat exchange pipe 45 is connected with a plurality of branch pipes 46, and the output end of each branch pipe 46 is communicated with the baking furnace 10; the branch pipes 46 are uniformly distributed along the circumferential direction of the side surface of the baking furnace 10 and the length direction of the baking furnace 10; more specifically, five groups of branch pipes 46 are provided in the length direction of the baking furnace 10; the branch pipes 46 are uniformly distributed around the circumferential direction of the side surface of the baking furnace 10, and the number of the branch pipes 46 is six.
Specifically, a first thermocouple 51 and a second thermocouple 52 are respectively arranged at the inlet of the first catalytic combustor 31 and the outlet of the second catalytic combustor 32, and are used for detecting the ambient temperature; the first thermocouple 51 and the second thermocouple 52 are simultaneously electrically connected with the second motor, and the rotating speed of the second motor is regulated according to the temperatures of the first thermocouple 51 and the second thermocouple 52.
Specifically, the VOC automatic detection device 60 is disposed at the second end outlet of the exhaust gas duct 20, and is used for detecting the exhaust gas index at the second end outlet of the exhaust gas duct 20;
through setting up VOC automatic checkout device 60, but the exhaust gas index of real-time detection exhaust duct 20 export, and then the rotational speed of adjustable first motor and second motor, and then adjust the catalyzed speed of exhaust gas recirculation, also can improve waste gas heat utilization and rate, improve heat exchange efficiency.
The working process of the embodiment:
the exhaust gas generated in the baking furnace 10 is sucked by the blower 21, and the exhaust gas passes through the first catalytic combustion chamber 31, the second catalytic combustion chamber 32 and the third catalytic combustion chamber 33 in the exhaust gas duct 20 in sequence, and is discharged out of the house through the outlet of the exhaust gas duct 20; when the VOC automatic detection device 60 detects that the index of the exhaust gas does not reach the standard, the second fan 43 is started, and the exhaust gas at the outlet of the second catalytic combustion chamber 32 is introduced into the return pipe 44 and is combusted again in the first catalytic combustion chamber 31;
the first fan 41 introduces fresh air into the first heat exchange tube 42 to exchange heat with the waste gas between the second catalytic combustion chamber 32 and the third catalytic combustion chamber 33, and further exchange heat with the waste gas in the return tube 44 through the second heat exchange tube 45, so that multiple heat exchange can be realized, and the heat cycle utilization rate is greatly improved; the heated fresh air is guided into the baking furnace 10 through the branch pipes 46 for use.
When the first thermocouple 51 and the second thermocouple 52 detect that the temperature is too high, the rotating speeds of the first fan 41 and the second fan 43 can be controlled to be increased, and the heat exchange efficiency is improved.
Compared with the prior art, the utility model has the advantages that the three layers of catalytic combustion chambers are arranged, so that the organic solvent evaporated by painting almost completely burns, the highest effect is achieved, the standard-reaching waste gas is discharged into the atmosphere, and the environmental pollution is reduced to the lowest; the metal catalytic block can be preferably adopted in each catalytic combustion chamber, the catalytic temperature is increased to 450 ℃, the catalytic combustion effect is obviously improved, more than 95% of the effective standard requirement of VOC concentration can be achieved, the discharged outdoor waste gas can meet the national environmental protection standard value, the environment is protected, and the blue sky is protected.
Through setting up first fan and first heat exchange tube, the waste gas heat in the usable waste gas pipeline, and then cyclic utilization cures the interior use of stove, the energy can be saved.
Through setting up second fan and back flow, can carry out catalytic combustion once more with the waste gas that is not fully catalyzed combustion by the second catalytic combustion room, make VOC volume up to standard.
Through setting up the second heat exchange tube can carry out the heat transfer with the waste gas in the return pipe, further improve thermal cycle efficiency, utilize the unnecessary heat of waste gas, and carry out catalytic combustion again after properly cooling down waste gas, can improve catalytic combustion effect.
Through setting up many branch pipes, can make the fresh air after the heating evenly get into the baking furnace, make the inside ambient temperature of baking furnace even, and then can improve the enameled wire japanning solidification effect.
Through setting up first thermocouple and second thermocouple, can improve waste gas heat utilization ratio according to the rotational speed of the temperature regulation second motor of the entry of first catalytic combustion room, the export of second catalytic combustion room, improve heat exchange efficiency.
Through setting up VOC automatic checkout device, but the waste gas index of real-time detection exhaust duct export, and then the rotational speed of adjustable first motor and second motor, and then adjust the catalyzed speed of exhaust gas recirculation, also can improve waste gas heat utilization and rate, improve heat exchange efficiency.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. An enameled wire baking furnace exhaust treatment device is characterized by comprising
The two ends of the baking furnace are respectively provided with an inlet and an outlet for the enameled wire to pass through;
the first end of the waste gas pipeline is communicated with the position of the baking furnace close to the tail end of the baking furnace; a first catalytic combustion chamber, a second catalytic combustion chamber and a third catalytic combustion chamber are sequentially arranged in the waste gas pipeline; the second end of the waste gas pipeline is provided with a blower;
and the waste gas generated in the baking furnace is sucked by the blower and sequentially passes through the first catalytic combustion chamber, the second catalytic combustion chamber and the third catalytic combustion chamber, and then is discharged out of the air from the second end of the waste gas pipeline.
2. The wire enamel baking furnace exhaust gas treatment device according to claim 1, wherein the combustion temperature of the third catalytic combustion chamber is 450 ℃.
3. The enameled wire baking furnace exhaust gas treatment device of claim 2, further comprising a first fan and a first heat exchange pipe; the first fan is connected with the input end of the first heat exchange pipe; the tube body of the first heat exchange tube is inserted in the waste gas pipeline, is positioned between the second catalytic combustion chamber and the third catalytic combustion chamber and is used for exchanging heat with waste gas in the waste gas pipeline; the output end of the first heat exchange pipe is communicated with the baking furnace.
4. The enameled wire baking furnace waste gas treatment device according to claim 3, further comprising a second fan and a return pipe; the second fan is connected with the return pipe and provides power for air in the return pipe; the input and the output of back flow respectively with exhaust gas piping intercommunication, the input of back flow corresponds and is located the exit of second catalytic combustion room, the output of back flow corresponds and is located the entrance of first catalytic combustion room, the back flow with the waste gas water conservancy diversion after the second catalysis to the entrance of first catalytic combustion room.
5. The enameled wire baking furnace exhaust gas treatment device according to claim 4, characterized in that, further comprises a second heat exchange pipe; the input end of the second heat exchange tube is connected with the output end of the first heat exchange tube; the second heat exchange tube is wound on the outer side of the return tube, and air in the tube body of the second heat exchange tube exchanges heat with waste gas in the return tube; and the output end of the second heat exchange tube is communicated with the baking furnace.
6. The enameled wire baking furnace exhaust gas treatment device of claim 5, wherein the output end of the second heat exchange pipe is connected with a plurality of branch pipes, and the output end of each branch pipe is communicated with the baking furnace; the branch pipes are uniformly distributed along the circumferential direction of the side surface of the baking furnace and the length direction of the baking furnace.
7. The exhaust gas treatment device of the enameled wire baking furnace according to claim 6, wherein five groups of branch pipes are arranged along the length direction of the baking furnace; the branch pipes of each group are uniformly distributed around the circumferential direction of the side surface of the baking furnace, and the number of the branch pipes of each group is six.
8. The enameled wire baking furnace exhaust gas treatment device according to claim 6, further comprising a first thermocouple and a second thermocouple respectively disposed at an inlet of the first catalytic combustion chamber and an outlet of the second catalytic combustion chamber for detecting an ambient temperature; the first thermocouple and the second thermocouple are simultaneously electrically connected with the second motor, and the rotating speed of the second motor is regulated according to the temperatures of the first thermocouple and the second thermocouple.
9. The enameled wire baking furnace exhaust gas treatment device of claim 8, characterized in that, further comprises an automatic VOC detection device; VOC automatic checkout device sets up exhaust duct's second end exit for detect the exhaust index of exhaust duct second end exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205666.0U CN214147950U (en) | 2020-12-25 | 2020-12-25 | Waste gas treatment device of enameled wire baking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023205666.0U CN214147950U (en) | 2020-12-25 | 2020-12-25 | Waste gas treatment device of enameled wire baking furnace |
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| Publication Number | Publication Date |
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| CN214147950U true CN214147950U (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023205666.0U Active CN214147950U (en) | 2020-12-25 | 2020-12-25 | Waste gas treatment device of enameled wire baking furnace |
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| CN (1) | CN214147950U (en) |
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2020
- 2020-12-25 CN CN202023205666.0U patent/CN214147950U/en active Active
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Address after: 529200 Wenhua Development Zone B, Shuibu Town, Taishan City, Jiangmen City, Guangdong Province Patentee after: Guangdong Songtian Technology Co.,Ltd. Address before: No.8, zone B, Wenhua Development Zone, Shuibu Town, Taishan, Jiangmen City, Guangdong Province, 529200 Patentee before: MATSUDA ELECTRIC (TAISHAN) Co.,Ltd. |