CN219010469U - Strip steel pickling device - Google Patents
Strip steel pickling device Download PDFInfo
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- CN219010469U CN219010469U CN202223074644.4U CN202223074644U CN219010469U CN 219010469 U CN219010469 U CN 219010469U CN 202223074644 U CN202223074644 U CN 202223074644U CN 219010469 U CN219010469 U CN 219010469U
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- electrode plate
- strip
- rotating roller
- pickling tank
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Abstract
The utility model relates to a strip steel pickling device, which comprises: a pickling tank; the first rotary roller is arranged above the pickling tank; the second rotary roller is arranged in the pickling tank; a strip steel which sequentially bypasses the first rotating roller and the second rotating roller; the electrode plate is arranged in the pickling tank; an atomizing nozzle provided above the first rotating roller, the atomizing nozzle being for spraying weakly alkaline rinse water to the first rotating roller; the wind nozzle is provided with a wind nozzle, which is aligned with the electrode plate in question, the tuyere is used for blowing weakly alkaline gas to the electrode plate. Through setting up atomizing nozzle in the first rotatory roller top of belted steel entry, can remain the roll surface in moist state all the time to reach and eliminate the easy sour crystallization precipitation that causes of roll surface, utilize the nozzle blowout alkaline gas to blow off exposing pickling solution electrode plate part simultaneously, can neutralize the acid mist value near diluting the electrode plate, destroy the continuous increase liquefaction's of acid mist concentration process, and then prevented the electrode plate crystallization and to the quality impact that belted steel caused.
Description
Technical Field
The utility model relates to the technical field of cleaning devices, in particular to a strip steel pickling device.
Background
In the strip steel production process, the strip steel is usually required to be pickled so as to play roles in cleaning microscopic impurities on the surface and activating the surface, the whole cleaning device is generally a sealed space, the strip steel is driven by an upper rotating roller and a lower rotating roller, the upper rotating roller is exposed in the air, and the lower rotating roller is immersed in an acidic solution.
The dilute sulfuric acid of the acidic working solution is volatilized, gasified and gradually rises, and particularly the first rotating roller is positioned in the direction of the strip steel running inlet, is immersed in wet acidic air for a long time and is air-dried by air continuously brought in a large amount from the outside, acid mist adhered to the surface of the roller is gradually liquefied, concentrated and settled, and finally high-concentration crystalline solid substances are formed, so that the surface of the strip steel is over-pickled, and the surface quality is affected; in addition, in order to ensure the concentration of acid ions in the working solution, electrode plates are arranged on two sides of the part of the strip steel extending into the acid solution, and in the long-term working process, the area of the electrode plates protruding out of the liquid surface can also produce crystallization to pollute the surface of the strip steel.
Disclosure of Invention
Therefore, the technical problem to be solved by the utility model is to solve the problem that the surface quality of the strip steel is affected due to acid deposition easily occurring on the rotating roller and the electrode plate of the strip steel cleaning device in the prior art.
In order to solve the technical problems, the utility model provides a strip steel pickling device, which comprises:
the pickling tank is provided with a plurality of pickling tank positions;
the first rotary roller is arranged above the pickling tank;
the second rotary roller is arranged in the pickling tank;
a strip steel which sequentially bypasses the first rotating roller and the second rotating roller;
the electrode plate is arranged in the pickling tank and comprises a cathode plate and an anode plate, and the cathode plate and the anode plate are positioned on two sides of the strip steel;
an atomizing nozzle provided above the first rotating roller, the atomizing nozzle being for spraying weakly alkaline rinse water to the first rotating roller;
and a tuyere aligned with the electrode plate, the tuyere being used for blowing weakly alkaline gas toward the electrode plate.
In one embodiment of the present utility model, the first rotating roller and the second rotating roller are each provided in plurality, and the strip steel sequentially bypasses the plurality of first rotating rollers and the plurality of second rotating rollers.
In one embodiment of the utility model, a cover plate is arranged above the pickling tank, and a pickling gas exhaust outlet is arranged on the cover plate.
In one embodiment of the utility model, a baffle is provided between a plurality of the first rotating rollers.
In one embodiment of the present utility model, a plurality of the atomizing nozzles are provided, and the plurality of atomizing nozzles are respectively located at both ends of the first rotating roller.
In one embodiment of the utility model, the pickling tank comprises a strip steel inlet, a rinsing water conveying pipe is arranged above the strip steel inlet, and a plurality of atomizing nozzles are connected with the rinsing water conveying pipe.
In one embodiment of the utility model, the air nozzles are knife-type air nozzles, a plurality of air nozzles are arranged, and the air nozzles are respectively positioned at two sides of the electrode plate.
In one embodiment of the utility model, the pickling tank is provided with a booster fan, and the booster fan is connected with a plurality of air nozzles through an air supply pipe.
In one embodiment of the utility model, a drip pan is provided in the pickling tank, the drip pan being provided with a conductivity meter.
In one embodiment of the utility model, the drip pan is disposed between the electrode plate and the first rotating roller.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
according to the strip steel pickling device, the atomizing nozzle is arranged above the first rotating roller at the strip steel inlet, so that the roller surface can be kept in a wet state all the time, acid crystals which are easy to cause on the roller surface are eliminated, meanwhile, alkaline gas sprayed by the air nozzle is utilized to blow out the part of the electrode plate exposed out of the pickling solution, the acid mist value near the diluted electrode plate can be neutralized, the process of continuously increasing the concentration of the acid mist is destroyed, the quality influence of the electrode plate crystals on strip steel is prevented, and the device can effectively avoid quality damage caused by acid deposition of internal structures in the strip steel cleaning process.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a front view of a strip pickling apparatus according to the present utility model;
FIG. 2 is a top view of the strip pickling apparatus of the present utility model;
FIG. 3 is a schematic diagram of the internal structure of the strip steel pickling device.
Description of the specification reference numerals: 1. a pickling tank; 101. a pickling tank; 2. a first rotating roller; 3. a second rotating roller; 4. strip steel; 5. an electrode plate; 6. an atomizing nozzle; 7. a tuyere; 8. a cover plate; 9. an acid washing gas exhaust port; 10. a baffle; 11. a rinse water delivery pipe; 12. an air supply pipe; 13. a drip pan; 14. conductivity detector.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1 to 3, the present utility model provides a strip steel 4 pickling apparatus comprising:
the pickling tank 1, the pickling tank 1 is provided with a plurality of pickling tank positions 101;
a first rotating roller 2 provided above the pickling tank 101;
a second rotating roller 3 provided in the pickling tank 101;
a strip steel 4 which sequentially bypasses the first rotating roller 2 and the second rotating roller 3;
the electrode plate 5 is arranged in the pickling tank 101, the electrode plate 5 comprises a cathode plate and an anode plate, and the cathode plate and the anode plate are positioned on two sides of the strip steel 4;
an atomizing nozzle 6 provided above the first rotating roller 2, the atomizing nozzle 6 being for spraying weakly alkaline rinse water to the first rotating roller 2;
and a tuyere 7 aligned with the electrode plate 5, the tuyere 7 being for blowing a weakly alkaline gas toward the electrode plate 5.
In summary, this kind of belted steel 4 pickling device, through setting up atomizing nozzle 6 above the first rotatory roller 2 of belted steel 4 entry, can remain the roll surface in moist state all the time, thereby reach and eliminate the easy sour crystallization precipitation that causes of roll surface, utilize tuyere 7 blowout alkaline gas to blow off exposing pickling solution electrode plate 5 part simultaneously, can neutralize the acid mist value near diluting electrode plate 5, destroy the continuous increase liquefaction's of acid mist concentration process, and then prevented the quality influence that electrode plate 5 crystallization led to the fact belted steel 4, this kind of device can effectively avoid the belted steel 4 to wash the in-process because of receiving the quality damage that internal structure acid deposit brought.
Specifically, dilute sulfuric acid pickling solution is contained in the pickling tank 1, and the second rotary roller 3 is immersed in the dilute sulfuric acid solution, so that the strip steel 4 passes through the first rotary roller 2 after entering from the inlet of the pickling tank 1, then is immersed in the pickling solution and bypasses the second rotary roller 3, and pickling of the strip steel 4 can be realized; the negative and positive poles of the electrode plate 5 are respectively positioned on two sides of the strip steel 4 and are very close to each other, the electrode plate 5 can enable the acid washing solution to always keep high concentration of acid ions, so that the acid washing effect is enhanced, a part of the liquid surface is exposed above the electrode plate 5 and is used for being connected with an external power supply, acid deposition is easy to be caused in the part, alkaline gas sprayed from the tuyere 7 can neutralize acid mist near the electrode plate 5, the possibility of acid deposition is reduced, the first rotating roller 2 is positioned above, the roller surface of the first rotating roller is kept wet by weak alkaline rinse water, and accumulation and crystallization of the acid mist can be prevented.
Further, the first rotating roller 2 and the second rotating roller 3 are provided in plurality, and the strip steel 4 sequentially bypasses the plurality of first rotating rollers 2 and the plurality of second rotating rollers 3.
Specifically, the upper side of the pickling tank 1 is a square tank body, a plurality of vertical tank bodies are welded below the pickling tank 1, dilute sulfuric acid solution is contained in the vertical tank bodies and used for pickling strip steel 4, the strip steel 4 sequentially bypasses the first rotating roller 2 close to one side of the pickling tank 1, and is immersed in the second rotating roller 3 in the pickling solution until being led out from the first rotating roller 2 at the other side of the pickling tank 1, so that the pickling effect of the strip steel 4 can be fully enhanced.
Further, a cover plate 8 is arranged above the pickling tank 1, and a pickling gas exhaust outlet 9 is arranged on the cover plate 8.
Specifically, the cover plate 8 forms a closed space for the whole pickling tank 1, so that liquid and acid volatile gas in the pickling tank 1 cannot pollute the environment and cause harm to operators, and meanwhile, an exhaust system is externally connected to the pickling gas exhaust port 9, so that pickling gas above pickling liquid can be timely discharged from a disc, and the aggravation of the acid deposition on the surface of the roller due to the condensation of the acid gas is prevented.
Further, a baffle 10 is provided between the plurality of first rotating rollers 2.
Specifically, the first rotating roller 2 at the inlet of the strip steel 4 is more easily air-dried by a large amount of externally carried air, so that the acid deposition phenomenon is most serious, and the baffle 10 is arranged between the first rotating roller and the adjacent first rotating roller 2, so that the influence of the strip steel 4 on the splashing of the acidic liquid on the roller surface in the running process can be prevented, and the beneficial factors of the acid deposition are reduced.
Further, a plurality of atomizing nozzles 6 are provided, and the plurality of atomizing nozzles 6 are respectively located at both ends of the first rotating roller 2.
Specifically, the power source of the atomizing nozzle 6 consists of compressed air and low-concentration alkaline rinsing water, weak alkaline water mist is sprayed along the 9 o' clock tangential direction of the rotating roller under the action of the high-flow atomizing nozzle 6, the high-flow weak alkaline water mist fully reacts with the acid mist before the acid mist is liquefied and is diluted, the acid mist liquefying condition is eliminated, and meanwhile, the acid mist is pressed below the rotating mechanism under the action of high-flow air flow, so that the possibility of residual acid mist deposition after neutralization is thoroughly eliminated.
More, compressed air input control criteria: the pressure is 2.5kg-3kg; low concentration alkaline rinse water control standard: rinse water sodium hydroxide concentration 0.1g/l-0.25g/l high flow atomizing nozzle 6 control standard: the pressure of the water source is input for 2-2.5kg; spraying the powder with the diameter of 40cm-60cm; spraying flow rate is 4-6l/h; spray angle and rotation of nozzle the tangential direction of the rollers is parallel, spacing 20cm; the nozzle mounting height was spaced 30cm from the horizontal tangent height of the rotating roll.
Further, the pickling tank 1 comprises a strip steel 4 inlet, a rinsing water conveying pipe 11 is arranged above the strip steel 4 inlet, the plurality of atomizing nozzles 6 are connected with a rinsing water delivery pipe 11.
Specifically, the length of the first rotating roller 2 is greater than the width of the strip steel 4, and the atomizing nozzles 6 are at least two and are aligned to the joint position areas of the strip steel 4 and the roller surface respectively, so that the roller surface can be kept in a wet state as much as possible, and acid deposition is prevented.
Further, the air nozzles 7 are knife-type air nozzles 7, a plurality of air nozzles 7 are arranged, and the air nozzles 7 are respectively positioned on two sides of the electrode plate 5. The pickling tank 1 is provided with a booster fan which is connected with a plurality of tuyeres 7 through an air supply pipe 12.
Specifically, the knife-shaped tuyere 7 can strengthen the blowing of the upper surface of the electrode plate 5, the booster fan pumps a certain pressure from the external alkaline system, the alkaline gas with a certain flow rate neutralizes the acid gas in the closed space and damages the progress of acid mist concentration increasing and liquefying continuously, so that the electrode plate 5 is organized to expose acid deposition of the pickling liquid part.
More, alkaline wash section air input control criteria: the pressure is 2.5kg-3kg; knife-type tuyere 7 control standard: the blade gap is 1mm-1.5mm, the length is 1100mm, and the width is 10mm; booster fan control standard: a pressure of 600pa; the flow rate is 5000 cubic/h.
Further, a drip pan 13 is provided in the pickling tank 1, and a conductivity detector 14 is provided in the drip pan 13.
Specifically, a proper amount of desalted water is placed in the liquid collecting disc 13, the conductivity of the solution in the disc is monitored by the conductivity detector 14, more conductivity detectors 14 are linked with the booster fan, when the conductivity is more than 20, the booster fan is automatically started, and when the monitored value of the conductivity detector is less than 20, the booster fan stops running. By repeating the steps, the acid value of acid mist in the acid space in a closed state is automatically adjusted, the liquefaction process of the acid mist is continuously increased, a booster fan is not required to be started for a long time, and the energy consumption is reduced.
Further, a drip pan 13 is provided between the electrode plate 5 and the first rotating roller 2.
Specifically, the acid mist condensation dew condensation near the electrode plate 5 can be more accurately collected, so that alkaline gas is introduced in time to neutralize the acid mist, and acid deposition on the surface of the electrode plate 5 is prevented.
It is apparent that the above embodiments are merely examples given for clarity of illustration, and not limited to the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. A strip steel pickling device, comprising:
the pickling tank is provided with a plurality of pickling tank positions;
the first rotary roller is arranged above the pickling tank;
the second rotary roller is arranged in the pickling tank;
the strip steel is processed into a strip steel, which sequentially bypasses the first rotating roller and the second rotating roller;
the electrode plate is arranged in the pickling tank and comprises a cathode plate and an anode plate, and the cathode plate and the anode plate are positioned on two sides of the strip steel;
an atomizing nozzle provided above the first rotating roller, the atomizing nozzle being for spraying weakly alkaline rinse water to the first rotating roller;
and a tuyere aligned with the electrode plate, the tuyere being used for blowing weakly alkaline gas toward the electrode plate.
2. The strip pickling device according to claim 1, wherein: the first rotating rollers and the second rotating rollers are all provided with a plurality of steel strips, and the steel strips sequentially bypass the first rotating rollers and the second rotating rollers.
3. The strip pickling device according to claim 1, wherein: the top of pickling tank is provided with the apron, be provided with the pickling gas air exit on the apron.
4. The strip pickling device according to claim 2, wherein: a baffle is arranged among the plurality of first rotating rollers.
5. The strip pickling device according to claim 1, wherein: the atomizing nozzles are arranged in a plurality, and the atomizing nozzles are respectively positioned at two ends of the first rotating roller.
6. The strip pickling device according to claim 5, wherein: the pickling tank comprises a strip steel inlet, a rinsing water conveying pipe is arranged above the strip steel inlet, and a plurality of atomizing nozzles are connected with the rinsing water conveying pipe.
7. The strip pickling device according to claim 1, wherein: the wind nozzles are knife-type wind nozzles, a plurality of wind nozzles are arranged, and the wind nozzles are respectively positioned on two sides of the electrode plate.
8. The strip pickling device of claim 7, wherein: the pickling tank is provided with a booster fan, and the booster fan is connected with a plurality of air nozzles through an air supply pipe.
9. The strip pickling device according to claim 1, wherein: the pickling tank is internally provided with a liquid collecting disc, and the liquid collecting disc is provided with a conductivity detector.
10. The strip pickling device according to claim 9, wherein: the drip pan is disposed between the electrode plate and the first rotating roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074644.4U CN219010469U (en) | 2022-11-18 | 2022-11-18 | Strip steel pickling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223074644.4U CN219010469U (en) | 2022-11-18 | 2022-11-18 | Strip steel pickling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219010469U true CN219010469U (en) | 2023-05-12 |
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ID=86234574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223074644.4U Active CN219010469U (en) | 2022-11-18 | 2022-11-18 | Strip steel pickling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219010469U (en) |
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2022
- 2022-11-18 CN CN202223074644.4U patent/CN219010469U/en active Active
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