CN217351548U - Acid liquor adding and impurity removing system of pickling tank and steel pipe pickling production line - Google Patents
Acid liquor adding and impurity removing system of pickling tank and steel pipe pickling production line Download PDFInfo
- Publication number
- CN217351548U CN217351548U CN202220733754.8U CN202220733754U CN217351548U CN 217351548 U CN217351548 U CN 217351548U CN 202220733754 U CN202220733754 U CN 202220733754U CN 217351548 U CN217351548 U CN 217351548U
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- pickling
- acid
- tank
- bath
- pickling tank
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- 238000005554 pickling Methods 0.000 title claims abstract description 146
- 239000002253 acid Substances 0.000 title claims abstract description 122
- 239000012535 impurity Substances 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 21
- 239000010959 steel Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 30
- 238000005507 spraying Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000000243 solution Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 15
- 239000007924 injection Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 3
- 239000012530 fluid Substances 0.000 abstract description 20
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 210000005056 cell body Anatomy 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005246 galvanizing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The utility model provides a pickling bath acidizing fluid adds edulcoration system and steel pipe pickling production line belongs to the pickling installation field. The acid liquor adding and impurity removing system of the pickling tank comprises the pickling tank, a premixing tank and a filtering and spraying unit. The bottom of the pickling tank is obliquely arranged; the premixing tank is arranged at the higher end of the bottom of the pickling tank, the bottom of the premixing tank is communicated with the pickling tank through a through hole, and the top of the premixing tank is provided with a water inlet and an acid inlet; the filtering and spraying unit is provided with a liquid extracting port communicated with the lower end of the pickling tank and a spraying port communicated with the bottom of the premixing tank, the spraying port faces the through hole, and a spraying line of the spraying port is arranged from high to low along the bottom of the pickling tank. The steel pipe pickling production line comprises the pickling tank acid liquor adding and impurity removing system. The acid liquor adding and impurity removing system of the pickling tank can be used for cleaning impurities at the bottom of the pickling tank and can also be used for adding acid liquor simultaneously, the impurities at the bottom of the pickling tank can be cleaned without personnel contact, and the added concentrated acid and water can be better mixed with the original acid liquor, so that the concentration of the acid liquor in the pickling tank is more uniform.
Description
Technical Field
The utility model belongs to the technical field of pickling installation, more specifically say, relate to a pickling bath acidizing fluid adds edulcoration system and steel pipe pickling production line.
Background
Pickling refers to a method of removing scale and rust on the surface of steel using an acid solution. The article is generally immersed in an aqueous solution of sulfuric acid, hydrochloric acid, or the like to remove a thin film of oxide or the like on the metal surface.
In the processing process of hot galvanizing of steel pipes, the steel pipes need to be pickled before hot galvanizing. When a large amount of steel pipes are pickled in the pickling tank, a certain amount of acid liquor is consumed in the pickling tank, and the concentration of the acid liquor is reduced, a certain amount of acid liquor needs to be supplemented into the pickling tank to recover the concentration and keep the liquid level of the acid liquor at a proper level. In addition, during the steel pipe pickling process, various impurities attached to the steel pipe are gradually deposited on the bottom of the pickling tank.
Because acid liquor is volatile and has strong corrosivity, and the damage to the health of personnel is extremely large, the existing pickling plants are generally provided with an automatic control system. When the automatic control system detects that the concentration or the liquid level of the acid liquor is too low, the acid liquor with a proper amount can be automatically supplemented into the pickling tank, manual operation is not needed, and the personnel safety is ensured. However, for impurities deposited at the bottom of the pickling tank, the conventional automatic control system cannot realize automatic cleaning, and the pickling tank still needs to be emptied periodically and the bottom of the pickling tank needs to be cleaned manually; therefore, the manual cleaning influences production on one hand, and on the other hand, the acid liquor remained in the tank is extremely easy to injure cleaning personnel.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pickling bath acidizing fluid adds edulcoration system and steel pipe pickling production line to the impurity of the pickling bath bottom of the pool that exists among the solution prior art needs artifical clearance, influences production, very easily leads to the fact the technical problem of injury to the cleanup crew.
In order to achieve the above object, the utility model adopts the technical scheme that an acid liquor adding and impurity removing system for a pickling tank is provided, which comprises:
the pickling tank is obliquely arranged at the bottom;
the premixing tank is arranged at the higher end of the bottom of the pickling tank, the bottom of the premixing tank is communicated with the pickling tank through a through hole, and the top of the premixing tank is provided with a water inlet and an acid inlet; and
and the filtering and spraying unit is provided with a liquid pumping port communicated with the lower end of the pickling tank and a spraying port communicated with the bottom of the premixing tank, the spraying port faces the through hole, and the spraying line of the spraying port is arranged from high to low along the bottom of the pickling tank.
As another embodiment of the present application, the filtering spray unit includes:
the liquid inlet cavity of the filtering component is provided with the liquid pumping port; and
and the pump inlet of the acid pump is connected with the filtrate cavity of the filtering assembly, and the pump outlet of the acid pump forms the jet orifice.
As another embodiment of the application, a plurality of bearing supports are arranged in the pickling tank, and a gap is formed between each bearing support and the bottom of the pickling tank.
As another embodiment of this application, the pickling bath acidizing fluid adds edulcoration system includes the cell body that the bottom slope set up, the cell body passes through the baffle and separates the pickling bath with mix the pond in advance, the baffle with the bottom of the pool interval certain distance of cell body forms the perforating hole.
As another embodiment of this application, be equipped with the horizontal orifice plate of a plurality of range upon range of settings in the premix pond, and adjacent the hole dislocation of orifice plate, the water inlet with advance sour mouthful and be located above.
As another embodiment of the present application, the ejection ports and the through-holes are located below a plurality of the orifice plates.
As another embodiment of the application, the upper part of the pickling tank is provided with an overflow circulating port communicated with the upper part of the premixing tank.
The embodiment of the utility model provides a pickling bath acidizing fluid adds edulcoration system's beneficial effect lies in: compared with the prior art, the acid liquor adding and impurity removing system for the pickling tank provided by the embodiment of the utility model can be used for cleaning impurities at the bottom of the pickling tank independently and adding acid liquor simultaneously; the impurity and the acidizing fluid of pickling bath bottom low side are taken out together to the drawing liquid mouth of filtration injection unit and are filtered, the acidizing fluid after the filtration is spout from the jet, wash the impurity of pickling bath bottom to the low side of bottom of the pool, the impurity clean up of pickling bath bottom is circulated like this, need not personnel's contact and can realize the impurity of cleaning the bottom of the pool, at this in-process, can add proportioned water and concentrated acid to premixing pond through water inlet and acid inlet, when the jet of filtration injection unit sprays, the acidizing fluid in the premixing pond gets into the pickling bath along with the acidizing fluid that sprays, thereby accomplish simultaneously and add the acidizing fluid to the pickling bath, and because the velocity of the liquid flow of spraying is fast, can be better with the concentrated acid that adds, water mixes with original acidizing fluid, make the concentration of acidizing fluid in the pickling bath more even.
The utility model discloses another technical scheme be, provide a steel pipe pickling production line, include: the acid liquor adding and impurity removing system of the pickling tank.
The embodiment of the utility model provides a steel pipe pickling production line's beneficial effect lies in: compared with the prior art, the steel pipe pickling line provided by the embodiment of the utility model can be used for cleaning impurities at the bottom of the pickling tank independently and adding acid liquor simultaneously by adopting any one of the acid liquor adding and impurity removing systems of the pickling tank; the impurity and the acidizing fluid of pickling bath bottom low side are taken out together to the drawing liquid mouth of filtration injection unit and are filtered, the acidizing fluid after the filtration is spout from the jet, wash the impurity of pickling bath bottom to the low side of bottom of the pool, the impurity clean up of pickling bath bottom is circulated like this, need not personnel's contact and can realize the impurity of cleaning the bottom of the pool, at this in-process, can add proportioned water and concentrated acid to premixing pond through water inlet and acid inlet, when the jet of filtration injection unit sprays, the acidizing fluid in the premixing pond gets into the pickling bath along with the acidizing fluid that sprays, thereby accomplish simultaneously and add the acidizing fluid to the pickling bath, and because the velocity of the liquid flow of spraying is fast, can be better with the concentrated acid that adds, water mixes with original acidizing fluid, make the concentration of acidizing fluid in the pickling bath more even.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an acid liquor adding and impurity removing system of a pickling tank provided by an embodiment of the utility model.
Wherein, in the figures, the respective reference numerals:
1-a pickling tank; 11-a through hole; 12-a carrier support; 2-a premixing pool; 21-a water inlet; 22-acid inlet; 23-well plate; 3-acid pump; 31-an ejection port; 4-a filter assembly; 41-a liquid suction port; 5-a pool body; 51-a separator.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In addition, in the description of the present invention, "a plurality" or "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, a system for adding and removing impurities in acid liquor in a pickling tank according to an embodiment of the present invention will be described. An acid liquor adding and impurity removing system for a pickling bath comprises:
a pickling tank 1, wherein the tank bottom is obliquely arranged;
the premixing tank 2 is arranged at the higher end of the bottom of the pickling tank 1, the bottom of the premixing tank is communicated with the pickling tank 1 through a through hole 11, and the top of the premixing tank is provided with a water inlet 21 and an acid inlet 22; and
and a filtration and injection unit having a liquid suction port 41 communicating with the lower end of the pickling tank 1 and an injection port 31 communicating with the bottom of the premix tank 2, wherein the injection port 31 faces the through hole 11, and the injection line of the injection port 31 is arranged from high to low along the bottom of the pickling tank 1.
Compared with the prior art, the acid liquor adding and impurity removing system for the pickling tank provided by the embodiment of the utility model can be used for cleaning impurities at the bottom of the pickling tank independently and adding acid liquor simultaneously; the impurity and the acid liquor of pickling bath 1 bottom low side are taken out together to filter by the liquid pumping port 41 of the filtering and spraying unit, the filtered acid liquor is sprayed out from the spray port 31, the impurity of the pickling bath 1 bottom is washed to the low side of the bath bottom, the impurity of the pickling bath 1 bottom is cleaned in such a circulation mode, the impurity of the bath bottom can be cleaned without personnel contact, in the process, proportioned water and concentrated acid can be added into the premixing bath 2 through the water inlet 21 and the acid inlet 22, when the spray port 31 of the filtering and spraying unit sprays, the acid liquor in the premixing bath 2 enters the pickling bath 1 along with the sprayed acid liquor, so that the acid liquor is added into the pickling bath 1 at the same time, and the sprayed concentrated acid and the water can be better mixed with the original acid liquor due to the high flow speed of the sprayed liquor, and the concentration of the acid liquor in the pickling bath 1 is more uniform.
In this embodiment, the pickling tank 1 may have substantially the same structure as the conventional pickling tank 1, and only the tank bottom is inclined. The premixing tank 2 is close to the higher end of the tank bottom of the pickling tank 1, and the premixing tank 2 is communicated with the pickling tank 1 by arranging a through hole 11 at the adjacent part of the premixing tank 2 and the pickling tank 1. The injection port 31 of the filtration injection unit communicates on the side wall of the premix tank 2, and the injection port 31 is opposed to the through hole 11. The spray nozzles 31 and the through holes 11 are positioned close to or in close proximity to the bottom of the pickling tank 1, so that the direction of the spray nozzles 31 can be changed from high to low along the bottom of the pickling tank 1, and impurities on the bottom of the pickling tank can be flushed to the lower end of the bottom of the pickling tank by the sprayed acid liquid.
In particular, the filtering and spraying unit can adopt a pump with a filtering function, and can also adopt a combination of a filter and a common pump.
Referring to fig. 1, as a specific embodiment of the acid liquor adding and impurity removing system for the pickling bath provided by the present invention, the filtering and spraying unit includes:
the liquid inlet cavity of the filtering component 4 is provided with a liquid pumping port 41; and
and the pump inlet of the acid pump 3 is connected with the filtrate cavity of the filter assembly 4, and the pump outlet forms a jet orifice 31.
In this embodiment, filter and spray the unit and adopt independent filter assembly 4, can choose suitable filter assembly 4 for use according to the condition of impurity in the acidizing fluid to compromise filtration efficiency and filter effect, clearance filter residue that also can be convenient.
In particular, the acid pump 3 pumps acid through the filter assembly 4 at the pump inlet. The acid liquor and impurities in the pickling tank 1 enter the liquor inlet cavity of the filtering component 4 from the lower end of the tank bottom of the pickling tank 1, and the acid liquor filtered by the filter element enters the filtering liquor cavity of the filtering component 4 and is finally pumped away by the acid pump 3. The filter component 4 adopts a filter element which is resistant to acid corrosion, and the filter component 4 which is convenient for replacing the filter element is preferably selected. The pump outlet of the acid pump 3 is directly communicated with the wall of the premixing tank 2 to be used as the jet orifice 31, and the position of the acid pump 3 can be close to the premixing tank 2 as much as possible, so that the jetted acid liquor keeps a high flow velocity, and impurities at the bottom of the pickling tank 1 can be better flushed.
Referring to fig. 1, as a specific embodiment of the acid liquor adding and impurity removing system for the pickling tank of the present invention, a plurality of supporting frames 12 are disposed in the pickling tank 1, and a gap is formed between the supporting frames 12 and the bottom of the pickling tank 1.
In this embodiment, the supporting frame 12 is used for supporting the parts to be pickled, so as to prevent the parts from being directly placed at the bottom of the pickling tank, and the gap between the supporting frame 12 and the bottom of the pickling tank 1 can be used for the acid solution sprayed by the spraying port 31 to pass through, so that the supporting frame 12 and the parts do not affect the acid solution sprayed by the spraying port 31 to wash the bottom of the pickling tank.
In a specific implementation, the supporting frame 12 may be formed by a plurality of beams or longitudinal beams fixed on the side walls of the pickling tank 1, and the beams or longitudinal beams have a certain height from the bottom of the pickling tank, so as to form a gap.
Referring to fig. 1, as a specific embodiment of the acid liquor adding and impurity removing system for the pickling tank provided by the present invention, the acid liquor adding and impurity removing system for the pickling tank includes a tank body 5 having a bottom inclined, the tank body 5 is divided into a pickling tank 1 and a pre-mixing tank 2 by a partition plate 51, and the partition plate 51 is spaced from the bottom of the tank body 5 by a certain distance to form a through hole 11.
In this embodiment, the acid solution ejected from the ejection port 31 can smoothly flow along the bottom of the tank body 5, and washes away the sludge at the bottom of the pickling tank 1.
Referring to fig. 1, as a specific embodiment of the acid liquor adding and impurity removing system for the pickling tank of the present invention, a plurality of horizontal pore plates 23 are stacked in the premixing tank 2, and the holes of the adjacent pore plates 23 are staggered, and the water inlet 21 and the acid inlet 22 are located above the horizontal pore plates.
In this embodiment, the concentrated acid and the water flowing from the water inlet 21 and the acid inlet 22 are primarily mixed when passing through the multi-layer orifice plate 23, and finally are further uniformly mixed under the impact of the acid solution sprayed from the spray opening 31.
In a specific implementation, a plurality of layers of horizontal orifice plates 23 are arranged in the premixing tank 2 from top to bottom, and the hole dislocation of adjacent orifice plates 23 can be completely staggered or can allow partial overlapping.
Referring to fig. 1, as a specific embodiment of the acid solution adding and impurity removing system for the pickling bath provided by the present invention, the injection ports 31 and the through holes 11 are located below the plurality of hole plates 23.
In the present embodiment, the orifice plate 23 is located above the ejection port 31 and the through hole 11, and thus the flow rate of the acid solution ejected from the ejection port 31 is not affected.
Referring to fig. 1, as a specific embodiment of the acid liquor adding and impurity removing system for the pickling tank of the present invention, an overflow circulation port communicated with the upper portion of the premixing tank 2 is disposed at the upper portion of the pickling tank 1.
In this embodiment, when the injection port 31 injects the acid solution, the acid solution in the premixing tank 2 enters the pickling tank 1 along with the injected acid solution, at this time, the acid solution in the pickling tank 1 is replenished to the upper portion of the premixing tank 2 through the circulation port, and the replenished acid solution is mixed with the water and the concentrated acid added from the water inlet 21 and the acid inlet 22, so that the acid solution is mixed more quickly and uniformly.
Referring to fig. 1, an embodiment of the present invention further provides a steel pipe pickling line, where the steel pipe pickling line includes: the acid liquor adding and impurity removing system of the pickling tank.
Compared with the prior art, the steel pipe pickling line provided by the embodiment of the utility model can independently clean impurities at the bottom of the pickling tank and simultaneously add acid liquor by adopting any one acid liquor adding and impurity removing system of the pickling tank; the impurities at the lower end of the tank bottom of the pickling tank 1 and the acid liquor are pumped out and filtered together through the liquid pumping port 41 of the filtering and spraying unit, the filtered acid liquor is sprayed out from the spraying port 31, the impurities at the tank bottom of the pickling tank 1 are washed to the lower end of the tank bottom, the impurities at the tank bottom of the pickling tank 1 are cleaned in such a circulating manner, the impurities at the tank bottom can be cleaned without being contacted by personnel, in the process, proportioned water and concentrated acid can be added into the premixing tank 2 through the water inlet 21 and the acid inlet 22, when the spraying port 31 of the filtering and spraying unit sprays, the acid liquor in the premixing tank 2 enters the pickling tank 1 along with the sprayed acid liquor, so that the acid liquor is added into the pickling tank 1 at the same time, and the added concentrated acid and the water can be better mixed with the original acid liquor due to the high speed of the sprayed liquor, and the concentration of the acid liquor in the pickling tank 1 is more uniform.
Specifically, the steel pipe pickling production may further include a crown block for transporting the steel pipe, an exhaust gas treatment device, a waste liquid treatment device, and a subsequent passivation tank, and the like.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. Acid liquor adding and impurity removing system for pickling bath, which is characterized by comprising:
the pickling tank is obliquely arranged at the bottom;
the premixing tank is arranged at the higher end of the bottom of the pickling tank, the bottom of the premixing tank is communicated with the pickling tank through a through hole, and the top of the premixing tank is provided with a water inlet and an acid inlet; and
and the filtering and spraying unit is provided with a liquid pumping port communicated with the lower end of the pickling tank and a spraying port communicated with the bottom of the premixing tank, the spraying port faces the through hole, and the spraying line of the spraying port is arranged from high to low along the bottom of the pickling tank.
2. The pickling acid addition and impurity removal system of claim 1, wherein the filtration and injection unit comprises:
the liquid inlet cavity of the filtering component is provided with the liquid pumping port; and
and the pump inlet of the acid pump is connected with the filtrate cavity of the filtering assembly, and the pump outlet of the acid pump forms the jet orifice.
3. The acid washing bath acid liquor adding and impurity removing system of claim 1, wherein a plurality of bearing supports are arranged in the acid washing bath, and a gap is formed between each bearing support and the bottom of the acid washing bath.
4. The acid pickling bath acid liquid addition and impurity removal system according to claim 1, wherein the acid pickling bath acid liquid addition and impurity removal system comprises a bath body with an inclined bottom, the bath body is divided into the acid pickling bath and the premixing bath by a partition plate, and the partition plate is spaced from the bath bottom of the bath body by a certain distance to form the through holes.
5. The acid pickling bath acid solution adding and impurity removing system according to claim 1, wherein a plurality of horizontal pore plates are arranged in a stacked manner in the pre-mixing tank, holes of adjacent pore plates are staggered, and the water inlet and the acid inlet are positioned above each other.
6. The pickling acid addition and impurity removal system of claim 5 wherein said spray ports and said through holes are located below a plurality of said orifice plates.
7. The acid pickling bath acid solution adding and impurity removing system of claim 1, wherein an overflow circulation port communicated with the upper part of the premixing bath is arranged at the upper part of the acid pickling bath.
8. Steel pipe pickling production line, its characterized in that includes: the acid pickling bath acid solution addition and impurity removal system of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220733754.8U CN217351548U (en) | 2022-03-31 | 2022-03-31 | Acid liquor adding and impurity removing system of pickling tank and steel pipe pickling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220733754.8U CN217351548U (en) | 2022-03-31 | 2022-03-31 | Acid liquor adding and impurity removing system of pickling tank and steel pipe pickling production line |
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| CN217351548U true CN217351548U (en) | 2022-09-02 |
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| CN202220733754.8U Active CN217351548U (en) | 2022-03-31 | 2022-03-31 | Acid liquor adding and impurity removing system of pickling tank and steel pipe pickling production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116555778A (en) * | 2023-06-09 | 2023-08-08 | 江苏博隆锦欣环保设备有限公司 | Pickling equipment based on steel sheet surface cleaning |
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2022
- 2022-03-31 CN CN202220733754.8U patent/CN217351548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116555778A (en) * | 2023-06-09 | 2023-08-08 | 江苏博隆锦欣环保设备有限公司 | Pickling equipment based on steel sheet surface cleaning |
| CN116555778B (en) * | 2023-06-09 | 2023-10-20 | 江苏博隆锦欣环保设备有限公司 | Pickling equipment based on steel sheet surface cleaning |
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