CN218756142U - Annular polar plate device for electrolytic cleaning and cold-rolled strip steel electrolytic cleaning device - Google Patents
Annular polar plate device for electrolytic cleaning and cold-rolled strip steel electrolytic cleaning device Download PDFInfo
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- CN218756142U CN218756142U CN202222995003.6U CN202222995003U CN218756142U CN 218756142 U CN218756142 U CN 218756142U CN 202222995003 U CN202222995003 U CN 202222995003U CN 218756142 U CN218756142 U CN 218756142U
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Abstract
The utility model discloses an electrolytic cleaning uses ring-shaped polar plate device, including a left polar plate, a right polar plate and a pair of sealed wringing roller, left polar plate, right polar plate and two sealed wringing rollers constitute an opening alkali lye storage chamber up jointly. The utility model also discloses a cold-rolled strip steel electrolytic cleaning device, including last cell body and alkali lye collecting vat, be equipped with the circular polar plate device for electrolytic cleaning in the alkali lye collecting vat, belted steel passes the circular polar plate device for electrolytic cleaning and carries out electrolytic cleaning. The utility model provides a cold-rolled strip steel electrolytic cleaning device has the advantages of no need of strict sealing, simple and convenient assembly and disassembly, fast circulation and flow of alkali liquor, rapid gas escape, alkali liquor saving and energy consumption reduction.
Description
Technical Field
The utility model relates to a cold-rolled strip steel continuous electrolytic cleaning technical field, concretely relates to electrolytic cleaning is with ring-shaped polar plate device and cold-rolled strip steel electrolytic cleaning device.
Background
After the hot-rolled strip steel is cold-rolled by a cold rolling mill, a large amount of dirt is on the surface of the hot-rolled strip steel, the main components of the hot-rolled strip steel are grease, dust and iron powder, and the total amount of a single surface of the hot-rolled strip steel is generally as high as 300-600 mg/m 2 . In the subsequent processing unit, such as: continuous electrolysis unit, continuous annealing unit and continuous platingThe zinc units are all provided with a degreasing and cleaning process. In the degreasing process, the dirt on the surface of the strip steel is generally removed by adopting alkali soaking and alkali scrubbing, but the surface of the strip steel cannot be completely cleaned by adopting the alkali soaking and alkali scrubbing because the surface of the rolled strip steel has certain roughness, a plurality of oil dirt particles and dirt particles are adhered to pits on the surface of the strip steel and are not easy to completely remove, and the dirt is usually removed by adopting an electrolytic degreasing method in actual production.
Electrolytic degreasing is performed by adopting an electrochemical method, the currently adopted mode is that strip steel is soaked in an electrolytic bath, electrodes are arranged on two sides of the soaked strip steel, direct current is applied, and when the electrodes are in a polar state, the strip steel is induced to have a polarity opposite to that of the electrodes. When the electrode is negative, the strip steel is positive. On the contrary, when the electrode is in positive polarity, the strip steel is in negative polarity. However, a large amount of gas is precipitated regardless of the positive or negative polarity of the strip. The mechanism is as follows:
the chemical process of electrolysis is actually the process of electrolysis of water, in solution water decomposition occurs, i.e. 4H 2 O＝4H + +4OH；
At the cathode the following reaction takes place, evolving hydrogen gas: 4H + +4e＝2H 2 ；
At the anode the following reaction takes place, oxygen evolving: 4OH - -4e＝O 2 +2H 2 O；
Along with the generation and the escape of a large amount of gas on the surface of the strip steel, the escaped gas can lead dirt in the pits of the strip steel to leave the strip steel, thus playing a role of degreasing.
At present, the electrolytic bath is filled with alkali liquor, so that the following problems are caused, firstly, the electrolytic bath has large volume, and in order to fill the electrolytic bath, a large amount of alkali liquor needs to be circulated, so that the energy consumption is high, a large amount of foam can be generated, and the alkali liquor loss is increased. The tank body is filled with tank liquid, so that the water hammer phenomenon of the electrolyte input pipe is aggravated when the machine is stopped, and pipelines and related instruments are easily damaged; the second step is as follows: the roll neck of the sinking roll shaft needs to be completely sealed, the device is easy to wear, the sealing effect is influenced due to expansion caused by heat and contraction caused by cold, and the production environment is influenced due to the fact that alkali liquor drips and leaks on the site for a long time. And thirdly: the electrolyte is filled in the cell body and is completely contacted with the cell body, so that the inner wall of the cell body of the electrolytic cell needs to be lined with glue, but the lining glue layer is easy to age and damage along with the prolonging of time, and the electrolytic efficiency is influenced; fourthly, the method comprises the following steps: the electrode plate is a vulnerable part, but is limited by the arrangement of the existing structure, and the strip steel needs to be cut off during replacement, so that the operation and maintenance are complicated.
For the above reasons, there is a need to develop a new electrolytic cell which can clean the contaminants in the pits of the strip steel during the electrolytic cleaning process and avoid the above disadvantages.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a cold-rolled strip steel electrolytic cleaning device which has the advantages of no need of strict sealing, simple and convenient assembly and disassembly, fast circulation and flow of alkali liquor, rapid gas escape, alkali liquor saving and energy consumption reduction.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the utility model provides an electrolytic cleaning uses ring-shaped polar plate device, including a left polar plate, a right polar plate and a pair of sealed wringing roller, left side polar plate and right polar plate connect into one and supply belted steel to pass annular channel wherein, the annular channel below is located to a pair of sealed wringing roller, the clearance is adjustable between the roller of two sealed wringing rollers, left side polar plate, right side polar plate and two sealed wringing rollers constitute an opening alkali lye storage chamber up jointly, left side polar plate is equipped with the copper bar connecting plate, right side polar plate is equipped with alkali lye and spouts the interface, belted steel passes the clearance between the roller of alkali lye storage chamber and two sealed wringing rollers, alkali lye in the input alkali lye storage chamber rises and from the opening overflow.
Preferably, the left pole plate and the right pole plate are both provided with a plurality of alkali liquor jet holes; the diameter of the alkali liquor jet hole of the left polar plate is 12 mm-20 mm, and 6-10 rows are arranged; the diameter of the alkali liquor jet hole of the right pole plate is 12 mm-20 mm, and 6-10 rows are arranged.
Preferably, the left polar plate and the right polar plate are made of stainless steel materials and are connected through stainless steel bolts.
Preferably, the left polar plate and the right polar plate are respectively 800 mm-1200 mm in length.
Preferably, the sealing wringing roller is an idler roller with the diameter of 300mm, and is a surface rubber-lined roller.
The utility model also provides a cold-rolled steel strip electrolytic cleaning device, including last cell body and alkali lye collecting vat, cell body bottom is gone up in the alkali lye collecting vat intercommunication, go up and be equipped with entry steering roll and export steering roll in the cell body, steering roll in the middle of being equipped with in the alkali lye collecting vat, belted steel is in proper order through the entry steering roll, middle steering roll is U type conveying with export steering roll, the entry steering roll disposes the entry compression roller, export steering roll disposes the export compression roller, between entry steering roll and the middle steering roll, and be equipped with foretell circular polar plate device for electrolytic cleaning between export steering roll and the middle steering roll, belted steel passes each circular polar plate device for electrolytic cleaning, alkali lye collecting vat bottom is equipped with alkali lye backward flow interface.
Furthermore, the alkali liquor collecting tank is made of stainless steel, and the diameter of the alkali liquor backflow interface is 300-450 mm.
Furthermore, the copper bar connecting plate is arranged at the transmission end of the left polar plate, the alkali liquor spraying interface is arranged at the transmission end of the right polar plate, and the operation end of the left polar plate and the operation end of the right polar plate are respectively provided with a balance weight hoisting shaft.
Furthermore, an operation side of the alkali liquor collecting tank is provided with a pole plate hoisting hole and a middle steering roller mounting hole, and the pole plate hoisting hole is provided with a detachable cover plate.
Preferably, four annular polar plate devices for electrolytic cleaning are arranged in the alkali liquor collecting tank in two rows and two columns, a first polar plate hoisting hole and a second polar plate hoisting hole are formed in the operation side of the alkali liquor collecting tank, and the first polar plate hoisting hole and the second polar plate hoisting hole correspond to the two rows of annular polar plate devices for electrolytic cleaning respectively.
The utility model provides a cold-rolled steel strip electrolytic cleaning device has following beneficial effect:
1) Because the inlet press roll, the outlet press roll and the sealing wringing roll are arranged, the strip steel between the two polar plates can not lose tension, so that the distance between the inner cavity wall of the polar plate and the strip steel can be reduced to 30mm, the resistance loss of alkali liquor during electrolysis can be reduced, and the cleaning efficiency is improved.
2) Alkali liquor is collected through the alkali liquor collecting tank and is recycled in a backflow mode, and no rubber lining is needed on the inner wall of the tank body of the whole device.
3) Each polar plate is equipped with counterweight hoist and mount axle, and alkali lye collecting vat lateral wall is equipped with the polar plate hole of hoist, when needing to change the polar plate, unpacks apart the apron, adopts the counterweight hoist and mount, need not to cut off belted steel, improves the operating efficiency.
4) No need of strict sealing, simple and convenient assembly and disassembly, quick circulation and flow of alkali liquor, quick gas escape, alkali liquor saving and energy consumption reduction.
Drawings
FIG. 1 is a schematic structural view of an electrolytic cleaning device for cold-rolled strip steel according to an embodiment of the present invention;
FIG. 2 is a front view of an annular plate device for electrolytic cleaning according to an embodiment of the present invention;
FIG. 3 is a view from the direction A of FIG. 2;
FIG. 4 is a view from the direction B of FIG. 2;
FIG. 5 is a view along direction C of FIG. 2, showing the left and right plates separated;
FIG. 6 is a schematic structural diagram of an alkali liquor collecting tank according to an embodiment of the present invention.
Description of reference numerals: 1. strip steel; 2. an upper trough body; 3. an alkali liquor collecting tank; 4. an inlet turning roll; 5. a middle turning roll; 6. an exit turn roll; 7. an inlet press roll; 8. an outlet press roll; 9. an annular polar plate device for electrolytic cleaning; 10. sealing the wringing roller; 91. a balance weight hoisting shaft; 92. an alkali liquor jet hole; 93. a polar plate connecting plate; 94. alkali liquor is sprayed into the interface; 95. a copper bar connecting plate; 96. a left polar plate; 97. a right pole plate; 31. an alkali liquor backflow interface; 32. a middle steering roller mounting hole; 33. a first polar plate hoisting hole; 34. second polar plate hole for hoist.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 and fig. 6, the present embodiment discloses a cold-rolled strip steel electrolytic cleaning device, which includes an upper tank 2 and an alkali collecting tank 3, the alkali collecting tank 3 is communicated with the bottom of the upper tank 2, an inlet steering roller 4 and an outlet steering roller 6 are arranged in the upper tank 2, a middle steering roller 5 is arranged in the alkali collecting tank 3, the strip steel 1 sequentially passes through the inlet steering roller 4, the middle steering roller 5 and the outlet steering roller 6 to form a U-shaped transmission, the inlet steering roller 4 is configured with an inlet pressure roller 7, the outlet steering roller 6 is configured with an outlet pressure roller 8, annular polar plate devices 9 for electrolytic cleaning are arranged between the inlet steering roller 4 and the middle steering roller 5, and between the outlet steering roller 6 and the middle steering roller 5, the strip steel 1 passes through the annular polar plate devices 9 for electrolytic cleaning, alkali backflow holes are arranged at the bottom of the alkali tank 3, and an alkali backflow port 31 is arranged at the alkali backflow hole.
As shown in fig. 2 to 5, the annular plate device 9 for electrolytic cleaning comprises a left plate 96, a right plate 97 and a pair of sealing squeeze rollers 10, wherein the left plate 96 and the right plate 97 are connected to form an annular passage through which the strip steel 1 passes, the pair of sealing squeeze rollers 10 are arranged below the annular passage, the gap between the rollers of the two sealing squeeze rollers 10 is adjustable, the left plate 96, the right plate 97 and the two sealing squeeze rollers 10 jointly form an alkali liquor storage cavity with an upward opening, the alkali liquor storage cavity can be filled with alkali liquor, the left plate 96 is provided with a copper bar connecting plate 95, the right plate 97 is provided with an alkali liquor spraying interface 94, the strip steel 1 passes through the alkali liquor storage cavity and the gap between the rollers of the two sealing squeeze rollers 10, and the alkali liquor overflows from the upper half part by controlling the input amount of an alkali liquor circulating system. The alkali liquor input by the alkali liquor injection interface 94 rises and overflows in the alkali liquor storage cavity to form a current loop to finish the electrolytic cleaning process.
Preferably, the left and right plates 96 and 97 are provided with a plurality of lye jet holes 92. The diameter of the alkali liquor jet hole 92 on the left polar plate 96 is 12 mm-20 mm, and 6-10 rows are arranged; the diameter of the alkali liquor jet hole 92 on the right polar plate 97 is 12 mm-20 mm, and 6-10 rows are arranged. The main purpose of the alkali liquor spouting holes 92 is to accelerate the flow of alkali liquor, facilitate the escape of gas and improve the cleaning efficiency.
The left and right plates 96, 97 are made of stainless steel, preferably 316. The lengths of the left polar plate 96 and the right polar plate 97 are 800 mm-1200 mm respectively, and the width of the alkali liquor storage cavity is 1 +500mm of the maximum strip steel. Both ends of the left pole plate 96 and both ends of the right pole plate 97 are provided with pole plate connecting plates 93, each pole plate connecting plate 93 is provided with a bolt mounting hole, and the left pole plate 96 and the right pole plate 97 are connected through stainless steel bolts, so that the quick disassembly is convenient.
Preferably, the sealing wringing roller 10 is an idler roller with a diameter of 300mm and is a surface-lined roller.
Preferably, the alkali liquor collecting tank 3 is made of stainless steel, and the diameter of the alkali liquor backflow connector 31 is 300-450 mm. Adopt the alkali lye collecting vat 3 that need not the lining glue, set up alkali lye backward flow hole, alkali lye backward flow hole makes alkali lye flow out fast, avoids alkali lye to spill over in alkali lye collecting vat 3.
Specifically, the copper bar connecting plate 95 is arranged at the transmission end of the left pole plate 96 and connected with the positive electrode of the rectifier, and the alkali liquor injection pipe interface is arranged at the transmission end of the right pole plate 97. The operation end of the left pole plate 96 and the operation end of the right pole plate 97 are respectively provided with a balance weight hoisting shaft 91 which is used for being fixed with one end of a balance weight during replacement hoisting.
An operating side of the alkali liquor collecting tank 3 is provided with a polar plate hoisting hole and a middle steering roller mounting hole 32. The size of polar plate hole for hoist sets up according to the size of polar plate, and the apron that the plus can dismantle fast when needing to change the polar plate, unpacks apart the entry apron, adopts the counter weight hoist and mount, need not to cut off belted steel 1 and improves the operating efficiency.
In this embodiment, specifically, four annular polar plate devices 9 for electrolytic cleaning are arranged in the alkali liquor collecting tank 3 in two rows and two columns, and the first polar plate lifting holes 33 and the second polar plate lifting holes 34 corresponding to the two rows of annular polar plate devices 9 for electrolytic cleaning are opened on the operation side of the alkali liquor collecting tank 3.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; these modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and therefore, all other embodiments obtained by those skilled in the art without any creative effort fall within the protection scope of the present invention.
Claims (10)
1. Annular polar plate device for electrolytic cleaning, its characterized in that: the device comprises a left pole plate (96), a right pole plate (97) and a pair of sealing wringing rollers (10), wherein the left pole plate (96) and the right pole plate (97) are connected into an annular passage through which strip steel (1) passes, the pair of sealing wringing rollers (10) are arranged below the annular passage, the gap between the rollers of the two sealing wringing rollers (10) is adjustable, the left pole plate (96), the right pole plate (97) and the two sealing wringing rollers (10) jointly form an alkali liquor storage cavity with an upward opening, the left pole plate (96) is provided with a copper bar connecting plate (95), the right pole plate (97) is provided with an alkali liquor spraying interface (94), the strip steel (1) passes through the alkali liquor storage cavity and the gap between the rollers of the two sealing wringing rollers (10), and alkali liquor input into the alkali liquor storage cavity rises and overflows from the opening.
2. The annular plate device for electrolytic cleaning according to claim 1, characterized in that: the left polar plate (96) and the right polar plate (97) are both provided with a plurality of alkali liquor jet holes (92); the diameter of the alkali liquor jet hole (92) of the left polar plate (96) is 12 mm-20 mm, and 6-10 rows are arranged; the diameter of the alkali liquor jet hole (92) of the right polar plate (97) is 12 mm-20 mm, and 6-10 rows are arranged.
3. The circular plate apparatus for electrolytic cleaning according to claim 1, wherein: the left pole plate (96) and the right pole plate (97) are both made of stainless steel materials, and the left pole plate (96) is connected with the right pole plate (97) through stainless steel bolts.
4. The annular plate device for electrolytic cleaning according to claim 1, characterized in that: the left polar plate (96) and the right polar plate (97) are respectively 800 mm-1200 mm in length.
5. The annular plate device for electrolytic cleaning according to claim 1, characterized in that: the sealing wringing roller (10) is an idler roller with the diameter of 300mm and is a surface rubber-lined roller.
6. The electrolytic cleaning device for the cold-rolled strip steel is characterized in that: including last cell body (2) and alkali lye collecting vat (3), alkali lye collecting vat (3) intercommunication is gone up cell body (2) bottom, go up and be equipped with entry steering roll (4) and export steering roll (6) in cell body (2), be equipped with middle steering roll (5) in alkali lye collecting vat (3), belted steel (1) is the conveying of U type through entry steering roll (4) in proper order, middle steering roll (5) and export steering roll (6), entry steering roll (4) dispose entry compression roller (7), export steering roll (6) dispose export compression roller (8), entry steering roll (4) and middle steering roll (5) between, and export steering roll (6) and middle steering roll (5) between be equipped with according to any one of claims 1 to 5 annular polar plate device for electrolytic cleaning, belted steel (1) pass each annular polar plate device for electrolytic cleaning, alkali lye collecting vat (3) bottom is equipped with alkali lye backward flow interface (31).
7. The electrolytic cleaning apparatus for cold-rolled steel strip as claimed in claim 6, wherein: the alkali liquor collecting tank (3) is made of stainless steel, and the diameter of the alkali liquor backflow connector (31) is 300-450 mm.
8. The electrolytic cleaning apparatus for cold-rolled steel strip as claimed in claim 6, wherein: the copper bar connecting plate (95) is arranged at the transmission end of the left polar plate (96), the alkali liquor spraying interface (94) is arranged at the transmission end of the right polar plate (97), and the operation end of the left polar plate (96) and the operation end of the right polar plate (97) are respectively provided with a balance weight lifting shaft (91).
9. The electrolytic cleaning apparatus for cold-rolled steel strip according to claim 8, wherein: an operation side of the alkali liquor collecting tank (3) is provided with a polar plate hoisting hole and a middle steering roller mounting hole (32), and the polar plate hoisting hole is provided with a detachable cover plate.
10. The electrolytic cleaning apparatus for cold-rolled steel strip as claimed in claim 9, wherein: the device is characterized in that four annular polar plate devices for electrolytic cleaning are arranged in the alkali liquor collecting tank (3) in two rows and two columns, a first polar plate hoisting hole (33) and a second polar plate hoisting hole (34) are formed in the operation side of the alkali liquor collecting tank (3), and the first polar plate hoisting hole (33) and the second polar plate hoisting hole (34) correspond to the two rows of annular polar plate devices for electrolytic cleaning respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222995003.6U CN218756142U (en) | 2022-11-10 | 2022-11-10 | Annular polar plate device for electrolytic cleaning and cold-rolled strip steel electrolytic cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222995003.6U CN218756142U (en) | 2022-11-10 | 2022-11-10 | Annular polar plate device for electrolytic cleaning and cold-rolled strip steel electrolytic cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218756142U true CN218756142U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222995003.6U Active CN218756142U (en) | 2022-11-10 | 2022-11-10 | Annular polar plate device for electrolytic cleaning and cold-rolled strip steel electrolytic cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218756142U (en) |
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2022
- 2022-11-10 CN CN202222995003.6U patent/CN218756142U/en active Active
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