CN212084773U - Degaussing device for welding construction in strong magnetic field environment in electrolytic aluminum industry - Google Patents
Degaussing device for welding construction in strong magnetic field environment in electrolytic aluminum industry Download PDFInfo
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- CN212084773U CN212084773U CN202020888727.9U CN202020888727U CN212084773U CN 212084773 U CN212084773 U CN 212084773U CN 202020888727 U CN202020888727 U CN 202020888727U CN 212084773 U CN212084773 U CN 212084773U
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Abstract
The utility model discloses a degaussing device for welding construction in the strong magnetic field environment of the electrolytic aluminum industry, wherein the U-shaped structure main body consists of a vertical plate, an upper flat plate and a lower flat plate, the upper flat plate and the lower flat plate are respectively welded at the upper end and the lower end of the vertical plate, and the upper flat plate and the lower flat plate are both wound with coils; the coil is formed by winding a colloid or plastic insulated enameled wire around the upper flat plate and the lower flat plate respectively in an annular shape, and two ends of the coil are connected with an externally arranged welding machine; the center position of going up the flat board is provided with the lug, the lug is used for conveniently hanging demagnetizer on electric hoist, makes demagnetizer remove along with the welding orbit. The utility model discloses eliminate because of the influence that magnetic field caused to the welding, guaranteed the safe high-efficient operation of desulfurization tower section of thick bamboo storehouse construction.
Description
Technical Field
The utility model relates to a demagnetization device technical field especially relates to a welding construction's demagnetization device under electrolytic aluminum trade high-intensity magnetic field environment.
Background
In the modern electrolytic aluminum industrial production, a cryolite-alumina molten salt electrolysis method is adopted, wherein molten cryolite is a solvent, oxidized aluminum is used as a solute, a carbon body is used as an anode, aluminum liquid is used as a cathode, and after strong direct current is introduced, electrochemical reaction is carried out on two electrodes in an electrolytic cell at 950-970 ℃. The electrolytic aluminum is produced by melting alumina powder by contacting an electric positive electrode and an electric negative electrode; the production process can produce the electromagnetic field, and the more produced electromagnetic field that power consumption is big is just big, and the strong magnetic field of continuity can appear in view of this kind of reason peripheral environment, will appear magnetic blow, magnetism and break up, phenomenon such as magnetic adsorption when carrying out welding construction to SOx/NOx control unit, leads to unable normal welding.
Aiming at the phenomenon, some special equipment for degaussing is purchased in the market, and various degaussing process measures such as steel belt connection, fire baking, stainless steel weldment and object isolation weldment are repeatedly tested. According to related technical documents, the fact that in the magnetic field intensity level division, a weak magnetic environment is below 2000 gauss, a strong magnetic environment is above 5000 gauss, a medium magnetic environment is in the middle, the field magnetic field intensity which cannot be solved is measured to be 3000 gauss, the medium magnetic environment is adopted, the measures of steel strip connection, fire baking and object isolation weldments are only suitable for demagnetization in the weak magnetic environment, and a demagnetization method is needed to overcome the influence of magnetic blow in the medium magnetic environment, namely, a magnetic field opposite to the field magnetic field is generated at a welding joint to offset the magnetic field at the welding joint, so that the demagnetization device for welding construction in the strong magnetic field environment in the electrolytic aluminum industry is developed through multiple technical researches and experiments.
SUMMERY OF THE UTILITY MODEL
To the problem of above-mentioned prior art, the to-be-solved technical problem of the utility model lies in providing a demagnetizing device of welding construction under the strong magnetic field environment of electrolytic aluminum trade to reach the effect of eliminating magnetic field under strong magnetic field environment.
The utility model discloses a realize above-mentioned purpose, the technical scheme who takes is: a degaussing device for welding construction in a high-intensity magnetic field environment in the electrolytic aluminum industry is characterized in that a U-shaped structure main body is composed of a vertical plate, an upper flat plate and a lower flat plate, the upper flat plate and the lower flat plate are respectively welded to the upper end and the lower end of the vertical plate, and coils are wound on the upper flat plate and the lower flat plate; the coil is formed by winding a colloid or plastic insulated enameled wire around the upper flat plate and the lower flat plate respectively in an annular shape, and two ends of the coil are connected with an externally arranged welding machine; the center position of going up the flat board is provided with the lug, the lug is used for conveniently hanging demagnetizer on electric hoist, makes demagnetizer remove along with the welding orbit.
The coil is connected to a direct-current double-module welding machine by respectively winding the coil on the upper flat plate and the lower flat plate of the U-shaped structure main body, the welding machine is started to enable the coil to be electrified, and due to the magnetic effect of the current, the larger the current passing through the coil is, the stronger the generated magnetic field is. When the U-shaped structure main body acts on the desulfurizing tower silo, the magnetic field in the U-shaped structure main body and the magnetic field on the desulfurizing tower silo can be mutually offset, so that the effect of demagnetization is achieved.
Usually, two sides of a silo of the desulfurization tower are provided with electrolytic aluminum workshops, a construction site is located between the two electrolytic aluminum workshops, when the electrolytic aluminum workshops are fed and unloaded, an electrolytic cell is closed, so that a magnetic field changes, a path of the magnetic field in the middle of a steel plate changes, when the electrolytic cell of one electrolytic aluminum workshop is closed, the magnetic field deviates towards the direction of a welded steel plate of the electrolytic cell of the other electrolytic aluminum workshop which is not closed, and moreover, the magnetic field of the whole silo of the desulfurization tower also deviates towards the direction of the welded seam which is not welded, so that the magnetic field strength of the welded part of the steel plate is increased. In view of the reasons, the size and specification of the steel plate of the U-shaped structure main body, the winding number of the coils and the current of the welding machine are adjusted, so that the magnetic field generated by the U-shaped structure main body is adaptive to the magnetic field intensity in the welding range of the desulfurization tower barrel bin, and the aim of mutually offsetting the two magnetic fields is fulfilled.
As the utility model discloses a further improvement, when welding range when desulfurization tower section of thick bamboo storehouse height 0 ~ 6m, the magnetic field intensity in the welding range is 4000 gauss, the specification of U type main structure body is: the length is 460mm, the width is 400mm, the height is 400mm, and the thickness of the adopted steel plate is 60 mm; the winding structure of the coil is double-layer winding, and the number of winding turns of each layer is 18.
As the utility model discloses a further improvement, when welding range when desulfurization tower section of thick bamboo storehouse height 6 ~ 12m, magnetic field intensity in the welding range is 8000 gauss, U type main structure's specification is: the length is 800mm, the width is 400mm, the height is 600mm, and the thickness of the steel plate is 100 mm; the winding structure of the coil is double-layer winding, and the winding number of each layer is 20.
As a further improvement, when the welding range is 12 ~ 24m in desulfurization tower section of thick bamboo storehouse height, the magnetic field intensity in the welding range is 12000 gauss, the specification of U type main structure body is: the length is 1000mm, the width is 400mm, the height is 800mm, and the thickness of the adopted steel plate is 200 mm; the winding structure of the coil is double-layer winding, and the winding number of each layer is 25.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the embodiment of the present invention
In the figure: 1-U-shaped structure main body, 2-coil, 3-lifting lug, 4-electric hoist, 5-desulfurizing tower silo and 6-welding track.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a demagnetizing device for welding construction in a high-intensity magnetic field environment in the electrolytic aluminum industry is characterized in that a U-shaped structure body 1 is composed of a vertical plate, an upper flat plate and a lower flat plate, the upper flat plate and the lower flat plate are respectively welded to the upper end and the lower end of the vertical plate, and the upper flat plate and the lower flat plate are both wound with coils 2; the coil 2 is formed by winding a colloid or plastic insulated enameled wire around the upper flat plate and the lower flat plate respectively in an annular shape, and two ends of the coil 2 are connected with an externally arranged welding machine; the center position of going up the flat board is provided with lug 3, lug 3 is used for conveniently hanging demagnetizing device on electric hoist 4, makes demagnetizing device remove along with welding track 6.
The coil 2 is respectively wound on the upper flat plate and the lower flat plate of the U-shaped structure main body 1, the coil 2 is connected to a direct-current double-module welding machine, the welding machine is started to enable the coil 2 to be electrified, and due to the magnetic effect of the current, the larger the current passing through the coil 2 is, the stronger the generated magnetic field is. When the U-shaped structure main body 1 acts on the desulfurizing tower silo 5, the magnetic field in the U-shaped structure main body 1 and the magnetic field on the desulfurizing tower silo 5 can be mutually offset, so that the effect of demagnetization is achieved.
Usually, the two sides of the silo 5 of the desulfurization tower are electrolytic aluminum workshops, a construction site is located between the two electrolytic aluminum workshops, when the electrolytic aluminum workshops are fed and unloaded, the electrolytic bath can be closed, so that a magnetic field changes, the path of the magnetic field in the middle of a steel plate also changes, when one electrolytic bath of one electrolytic aluminum workshop is closed, the magnetic field can deviate towards the direction of the welded steel plate of the electrolytic bath of the other electrolytic aluminum workshop which is not closed, and not only can the magnetic field of the whole silo 5 of the desulfurization tower also deviate towards the direction of the welded seam which is not welded, so that the magnetic field intensity of the welded part of the steel plate is increased. In view of the above, the size specification of the steel plate of the U-shaped structural body 1, the number of winding turns of the coil 2 and the current of the welding machine are adjusted to adapt the magnetic field generated by the U-shaped structural body to the magnetic field intensity in the welding range of the desulfurization silo 5, so that the purpose of mutually offsetting the two magnetic fields is achieved.
As a further improvement, when the welding range is 0 ~ 6m in the 5 high levels of desulfurizing tower silo, the magnetic field intensity in the welding range is 4000 gausses, the specification of U type main structure body 1 is: the length is 460mm, the width is 400mm, the height is 400mm, and the thickness of the adopted steel plate is 60 mm; the winding structure of the coil 2 is double-layer winding, and the number of winding turns of each layer is 18.
As a further improvement, when the welding range is 6 ~ 12m high in 5 of desulfurizing tower silo, the magnetic field intensity in the welding range is 8000 gausses, U type main structure 1's specification is: the length is 800mm, the width is 400mm, the height is 600mm, and the thickness of the steel plate is 100 mm; the winding structure of the coil 2 is double-layer winding, and the winding number of each layer is 20.
As a further improvement, when the welding range is 12 ~ 24m high in desulfurizing tower silo 5, the magnetic field intensity in the welding range is 12000 gauss, the specification of U type main structure body 1 is: the length is 1000mm, the width is 400mm, the height is 800mm, and the thickness of the steel plate is 200 mm; the winding structure of the coil 2 is double-layer winding, and the winding number of each layer is 25.
The direct current electromagnetic fields with different spatial positions in various directions and different strengths are generated due to different distribution positions of various conductive units (buses, cathodes, anodes, aluminum liquid and the like) in the electrolysis workshop. The magnetic fields with different directions exert different strengths on the welding of the desulfurization silo 5, the desulfurization silo 5 can generate a magnetic field due to the existence of the surrounding magnetic field, and the magnetic field is increased along with the continuous increase of the height of the desulfurization silo 5, and the following description is provided by three embodiments.
Example 1
When the welding height of desulfurizing tower silo 5 was 0 ~ 6m, the magnetic field intensity of welding within range was 4000 gausses, and U type main structure 1 designs to be: the length is 460mm, the width is 400mm, the height is 400mm, and the thickness of the adopted steel plate is 60 mm; the winding structure of the coil 2 is double-layer winding, and the number of winding turns of each layer is 18. The demagnetizing device is hung on an electric hoist 4 through a lifting lug 3, so that a welding seam is just arranged in the middle of a U-shaped structure main body 1, two ends of a coil 2 are connected with a direct-current double-module welding machine, the welding machine is started, the current of the welding machine is adjusted to be 70-100A, the coil 2 is wound around an upper flat plate and a lower flat plate of the U-shaped structure main body 1 respectively, the diameter of the wire and the size of the U-shaped structure main body 1 determine the strength of a magnetic field, namely, the larger the current flowing in the wire and the larger the size of the U-shaped structure main body are, the stronger the generated magnetic field is. Therefore, through a plurality of experiments, the magnetic field intensity generated after the demagnetizing device manufactured by adopting the structure is electrified is about 4000 gausses, and the magnetic field intensity is exactly offset with the magnetic field of the desulfurizing tower silo 5 with the height within the welding range of 0-6 meters.
Example 2
When the welding height of the desulfurizing tower silo 5 is 6-12 m, the design of the U-shaped structure main body 1 is as follows: the length is 800mm, the width is 400mm, the height is 600mm, and the thickness of the steel plate is 100 mm; the winding structure of the coil 2 is double-layer winding, and the number of winding turns of each layer is 20. The demagnetizing device is hung on an electric hoist 4 through a lifting lug 3, so that a welding seam is just arranged in the middle of a U-shaped structure main body, two ends of a coil 2 are connected with a direct-current double-module welding machine, the welding machine is started, and the current of the welding machine is adjusted to 90-130A. Similarly, the intensity of the magnetic field generated by the demagnetizing device manufactured by adopting the structure through the experiment after being electrified is about 8000 gauss, and the intensity of the magnetic field is exactly offset with the magnetic field of the desulfurizing tower silo 5 with the height within the welding range of 6-12 meters.
Example 3
When the welding height of the desulfurizing tower silo 5 is 12-24 m, the specification of the U-shaped structure main body 1 is as follows: the length is 1000mm, the width is 400mm, the height is 800mm, and the thickness of the steel plate is 200 mm; the winding structure of the coil 2 is double-layer winding, and the winding number of each layer is 25. The demagnetizing device is hung on an electric hoist 4 through a lifting lug 3, so that a welding seam is just arranged in the middle of a U-shaped structure main body 1, two ends of a coil 2 are connected with a direct-current double-module welding machine, the welding machine is started, and the current of the welding machine is adjusted to be 100-160A. Similarly, the magnetic field intensity generated after the demagnetization device manufactured by adopting the structure is electrified through experiments is about 12000 gauss, and the magnetic field intensity is exactly offset with the magnetic field of the desulfurization tower silo 5 with the height within the welding range of 12-24 meters.
The utility model provides a demagnetization device removes along the welding track under the drive of electric hoist 4, and both operating personnel weld which demagnetization device just remove which to eliminate because of the influence that the magnetic field caused to the welding, guaranteed the safe high-efficient operation of the 5 construction of desulfurizing tower silo.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The demagnetizing device for welding construction in the high-intensity magnetic field environment in the electrolytic aluminum industry comprises a U-shaped structure main body, and is characterized in that the U-shaped structure main body consists of a vertical plate, an upper flat plate and a lower flat plate, the upper flat plate and the lower flat plate are respectively welded at the upper end and the lower end of the vertical plate, and the upper flat plate and the lower flat plate are both wound with coils; the coil is formed by winding a colloid or plastic insulated enameled wire around the upper flat plate and the lower flat plate respectively in an annular shape, and two ends of the coil are connected with an externally arranged welding machine; the center position of going up the flat board is provided with the lug, the lug is used for conveniently hanging demagnetizer on electric hoist, makes demagnetizer remove along with the welding orbit.
2. The demagnetizing device for welding construction in the high-intensity magnetic field environment of the electrolytic aluminum industry according to claim 1, wherein when the welding range is 0-6 m in height of a desulfurization tower barrel bin, the magnetic field strength in the welding range is 4000 gauss, and the specifications of the U-shaped structural body are as follows: the length is 460mm, the width is 400mm, the height is 400mm, and the thickness of the adopted steel plate is 60 mm; the winding structure of the coil is double-layer winding, and the number of winding turns of each layer is 18.
3. The demagnetizing device for welding construction in the high-intensity magnetic field environment of the electrolytic aluminum industry according to claim 1, wherein when the welding range is 6-12 m in height of a desulfurization tower barrel bin, the magnetic field strength in the welding range is 8000 gauss, and the specification of the U-shaped structural body is as follows: the length is 800mm, the width is 400mm, the height is 600mm, and the thickness of the adopted steel plate is 100 mm; the winding structure of the coil is double-layer winding, and the winding number of each layer is 20.
4. The demagnetizing device for welding construction in the high-intensity magnetic field environment of the electrolytic aluminum industry according to claim 1, wherein when a welding range is 12-24 m in height of a desulfurization tower barrel bin, the magnetic field intensity in the welding range is 12000 gauss, and the specifications of the U-shaped structural body are as follows: the length is 1000mm, the width is 400mm, the height is 800mm, and the thickness of the adopted steel plate is 200 mm; the winding structure of the coil is double-layer winding, and the winding number of each layer is 25.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020888727.9U CN212084773U (en) | 2020-05-22 | 2020-05-22 | Degaussing device for welding construction in strong magnetic field environment in electrolytic aluminum industry |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020888727.9U CN212084773U (en) | 2020-05-22 | 2020-05-22 | Degaussing device for welding construction in strong magnetic field environment in electrolytic aluminum industry |
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| CN212084773U true CN212084773U (en) | 2020-12-04 |
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| CN202020888727.9U Active CN212084773U (en) | 2020-05-22 | 2020-05-22 | Degaussing device for welding construction in strong magnetic field environment in electrolytic aluminum industry |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220216 Address after: 252000 Room 501, unit 1, building 6, No. 8, Yuxin street, Dongchangfu District, Liaocheng City, Shandong Province Patentee after: Wang Xingwen Address before: 271000 No. 342, Lingshan street, Taishan District, Tai'an City, Shandong Province Patentee before: Li Jingjun |
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Effective date of registration: 20220301 Address after: 252000 No. 2001, 20 / F, 1 / F, international building, Contemporary International Plaza, 177 Dongchang East Road, Liaocheng Economic and Technological Development Zone, Shandong Province Patentee after: Shandong yuzhitong Construction Engineering Co.,Ltd. Address before: 252000 Room 501, unit 1, building 6, No. 8, Yuxin street, Dongchangfu District, Liaocheng City, Shandong Province Patentee before: Wang Xingwen |