CN203999830U - A kind of whirlwind-type acid-washing stainless steel system - Google Patents
A kind of whirlwind-type acid-washing stainless steel system Download PDFInfo
- Publication number
- CN203999830U CN203999830U CN201420404804.3U CN201420404804U CN203999830U CN 203999830 U CN203999830 U CN 203999830U CN 201420404804 U CN201420404804 U CN 201420404804U CN 203999830 U CN203999830 U CN 203999830U
- Authority
- CN
- China
- Prior art keywords
- acid solution
- distribution piping
- acid
- pickling tank
- pressurized air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 21
- 239000010935 stainless steel Substances 0.000 title claims abstract description 21
- 238000005406 washing Methods 0.000 title claims abstract description 17
- 239000002253 acid Substances 0.000 claims abstract description 88
- 238000009826 distribution Methods 0.000 claims abstract description 66
- 238000005554 pickling Methods 0.000 claims abstract description 40
- 239000003814 drug Substances 0.000 claims abstract description 26
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 18
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 18
- 239000004571 lime Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000005215 recombination Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 45
- 238000000034 method Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The utility model discloses a kind of whirlwind-type acid-washing stainless steel system, system comprises pickling tank, acid solution transfer lime, acid cycle pump, medicament make-up pump, blowpipe, pressurized air distribution piping and acid solution distribution piping, acid solution transfer lime interlude is provided with acid cycle pump, medicament make-up pump is connected with acid solution transfer lime, in pickling tank bottom, surrounding is provided with pressurized air distribution piping and acid solution distribution piping, blowpipe is connected with pressurized air distribution piping, and acid solution transfer lime is connected with acid solution distribution piping.The utility model can be realized supplementary medicament and add in pipeline, by acid solution distribution piping, it is evenly added in pickling tank, improves the reaction efficiency of medicament, thereby saves medicament usage quantity and running cost.In addition, under the acting in conjunction of pressurized air distribution piping and acid solution distribution piping, acid solution is eddy flow shape in pickling tank, can accelerate peeling off of stainless steel surface iron scale, significantly improves pickling efficiency, be one not only efficiently but also simple acid-washing stainless steel system.
Description
Technical field
The utility model relates to a kind of whirlwind-type acid-washing stainless steel system.
Background technology
When stainless steel becomes various sheet material and section bar from hot rolling of steel billet, surface can be by airborne O
2oxidation, the tight zone of oxidation of generation black, yellow, in order to improve stainless outward appearance and solidity to corrosion, the stainless steel after processing must carry out cleanup acid treatment.Adopt the nitration mixture (HNO containing nitric acid
3+ HF) acid cleaning process can produce a large amount of containing NO
xacid mist, if do not take effective treatment measures, can cause actual bodily harm to operator, simultaneously also can cause serious corrosion to workshop appliance.In addition, acid mist directly outer row also can produce serious chimney " Huanglong " phenomenon, will the healthy of surrounding environment, the people and other animals and plants be produced to serious harm.In recent years, adopt with H
2sO
4with the mixed acid system of HF, and the auxiliary strong oxidizing property H that utilizes
2o
2obtained application development without nitric acid acid washing process for stainless steel.Due to H
2o
2conventionally add H in one end of pickling tank
2o
2skewness, causes its utilising efficiency very low.In addition, in acid cleaning process, acid solution is the circulation of laminar flow shape conventionally, and the peeling rate of iron scale is slower.
Summary of the invention
The purpose of this utility model is to overcome H in existing acid cleaning process
2o
2dosing method is improper, mixes inhomogeneously with acid solution, and iron scale peeling rate waits not enough slowly, and a kind of whirlwind-type acid-washing stainless steel system is provided.
Whirlwind-type acid-washing stainless steel system comprises pickling tank, acid solution transfer lime, acid cycle pump, medicament make-up pump, blowpipe, pressurized air distribution piping and acid solution distribution piping, acid solution transfer lime interlude is provided with acid cycle pump, medicament make-up pump is connected with acid solution transfer lime, in pickling tank bottom, surrounding is provided with pressurized air distribution piping and acid solution distribution piping, blowpipe is connected with pressurized air distribution piping, and acid solution transfer lime is connected with acid solution distribution piping.
The impeller material of described acid cycle pump is surface recombination tetrafluoroethylene.Described medicament make-up pump is volume pump.Described acid solution distribution piping is arranged in pickling tank bottom inside surrounding, is connected state, the acid solution distribution piping of pickling tank one long end inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole; The acid solution distribution piping of another long end of pickling tank inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole, fluid hole spacing is 5～20cm, fluid hole diameter is 3～10mm.Described pressurized air distribution piping is arranged directly over acid solution distribution piping, be arranged in the inner surrounding in pickling tank bottom, be connected state, the pressurized air distribution piping of pickling tank one long end inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore, the pressurized air distribution piping of another long end of pickling tank inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore, production well spacing is 5～20cm, and production well diameter is 1～5mm.
The utility model in pickling tank bottom inner surrounding arrange acid solution distribution piping and pressurized air distribution piping, by medicament make-up pump by H
2o
2add in acid solution transport pipe, acid solution and supplementary medicament mixed solution spray from the fluid hole of acid solution distribution piping in the mode of jet, and the airflow function of supplementary compressed air, make the acid solution in pickling tank be eddy flow shape, peeling off of accelerated oxidation iron sheet, greatly improve reaction efficiency, save medicament usage quantity and running cost.
brief description of the drawings
Fig. 1 is whirlwind-type acid-washing stainless steel system architecture schematic diagram;
Fig. 2 is pressurized air distribution piping and acid solution distribution piping sectional view;
In figure, pickling tank 1, acid solution transfer lime 2, acid cycle pump 3, medicament make-up pump 4, blowpipe 5, pressurized air distribution piping 6, acid solution distribution piping 7, production well 8, fluid hole 9.
Embodiment
As shown in Figure 1, whirlwind-type acid-washing stainless steel system comprises pickling tank 1, acid solution transfer lime 2, acid cycle pump 3, medicament make-up pump 4, blowpipe 5, pressurized air distribution piping 6 and acid solution distribution piping 7, acid solution transfer lime 2 interludes are provided with acid cycle pump 3, medicament make-up pump 4 is connected with acid solution transfer lime 2, in pickling tank 1 bottom, surrounding is provided with pressurized air distribution piping 6 and acid solution distribution piping 7, blowpipe 5 is connected with pressurized air distribution piping 6, and acid solution transfer lime 2 is connected with acid solution distribution piping 7.
The impeller material of described acid cycle pump 3 is surface recombination tetrafluoroethylene.Described medicament make-up pump 4 is volume pump.Described acid solution distribution piping 7 is arranged in pickling tank 1 bottom inside surrounding, is connected state, the acid solution distribution piping 7 of pickling tank 1 one long ends inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole 9; The acid solution distribution piping 7 of pickling tank 1 another long end inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole 9, fluid hole 9 spacing are 5～20cm, fluid hole 9 diameters are 3～10mm.
Described pressurized air distribution piping 6 is arranged directly over acid solution distribution piping 7, be arranged in the inner surrounding in pickling tank 1 bottom, be connected state, the pressurized air distribution piping 6 of pickling tank 1 one long ends inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore 8, the pressurized air distribution piping 6 of pickling tank 1 another long end inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore 8, production well 8 spacing are 5～20cm, and production well 8 diameters are 1～5mm.
Whirlwind-type acid-washing stainless steel method is: the valve of opening acid solution transfer lime 2, acid cycle pump 3, medicament make-up pump 4 and blowpipe 5, add at regular time and quantity required supplementary medicament by medicament make-up pump 4, acid cycle pump 6 mixes rapidly acid solution and supplementary medicament in pipeline, acid solution distribution piping 7 evenly adds in pickling tank 1 it to, the flow of acid cycle pump 3 is 1 ~ 10 times of pickling tank 1 volume, and the air flow of blowpipe 5 is 2～20 m
3/ m
3h, under pressurized air distribution piping 6 and 7 actings in conjunction of acid solution distribution piping, acid solution is eddy flow shape in pickling tank 1, accelerates peeling off of stainless steel surface iron scale, improves pickling efficiency.
The utility model passes through medicament make-up pump by H
2o
2add in acid solution transport pipe Deng medicament, in pickling tank bottom, surrounding is arranged acid solution distribution piping and pressurized air distribution piping, the acid solution distribution piping and the pressurized air distribution piping that are connected state can make its each section of pressure distribution even, the acid solution distribution piping of long end and pressurized air distribution piping along central shaft sea line up and down 10～30 ° arrange respectively liquid effluent hole and a production well, acid solution and supplementary medicament mixed solution spray from the fluid hole of acid solution distribution piping in the mode of jet, and the airflow function of supplementary compressed air, fluid hole and production well positioned opposite up and down, can make the acid solution in pickling tank roll up and down, thereby form the pickle solution of eddy flow shape, peeling off of accelerated oxidation iron sheet, greatly improve reaction efficiency, save medicament usage quantity and running cost.
Can find out from experimental result, whirlwind-type acid washing process for stainless steel can be saved H
2o
2consumption more than 50%, improves more than 100% pickling efficiency.
Claims (5)
1. a whirlwind-type acid-washing stainless steel system, it is characterized in that comprising pickling tank (1), acid solution transfer lime (2), acid cycle pump (3), medicament make-up pump (4), blowpipe (5), pressurized air distribution piping (6) and acid solution distribution piping (7), acid solution transfer lime (2) interlude is provided with acid cycle pump (3), medicament make-up pump (4) is connected with acid solution transfer lime (2), in pickling tank (1) bottom, surrounding is provided with pressurized air distribution piping (6) and acid solution distribution piping (7), blowpipe (5) is connected with pressurized air distribution piping (6), acid solution transfer lime (2) is connected with acid solution distribution piping (7).
2. a kind of whirlwind-type acid-washing stainless steel system according to claim 1, is characterized in that the impeller material of described acid cycle pump (3) is surface recombination tetrafluoroethylene.
3. a kind of whirlwind-type acid-washing stainless steel system according to claim 1, is characterized in that described medicament make-up pump (4) is volume pump.
4. a kind of whirlwind-type acid-washing stainless steel system according to claim 1, it is characterized in that described acid solution distribution piping (7) is arranged in pickling tank (1) bottom inside surrounding, be connected state, the acid solution distribution piping (7) of pickling tank (1) one long end inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole (9); The acid solution distribution piping (7) of another long end of pickling tank (1) inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a liquid effluent hole (9), fluid hole (9) spacing is 5～20cm, fluid hole (9) diameter is 3～10mm.
5. a kind of whirlwind-type acid-washing stainless steel system according to claim 1, pressurized air distribution piping (6) described in it is characterized in that is arranged directly over acid solution distribution piping (7), be arranged in the inner surrounding in pickling tank (1) bottom, be connected state, the pressurized air distribution piping (6) of pickling tank (1) one long end inwardly along on central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore (8), the pressurized air distribution piping (6) of another long end of pickling tank (1) inwardly along under central shaft horizontal alignment 10～30 ° be evenly arranged a discharge pore (8), production well (8) spacing is 5～20cm, production well (8) diameter is 1～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404804.3U CN203999830U (en) | 2014-07-22 | 2014-07-22 | A kind of whirlwind-type acid-washing stainless steel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420404804.3U CN203999830U (en) | 2014-07-22 | 2014-07-22 | A kind of whirlwind-type acid-washing stainless steel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203999830U true CN203999830U (en) | 2014-12-10 |
Family
ID=52039859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420404804.3U Withdrawn - After Issue CN203999830U (en) | 2014-07-22 | 2014-07-22 | A kind of whirlwind-type acid-washing stainless steel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203999830U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152931A (en) * | 2014-07-22 | 2014-11-19 | 浙江大学 | Spiral-flow type stainless steel pickling system and method |
| EP3483304A1 (en) * | 2017-11-13 | 2019-05-15 | Feuerverzinkung Hannover GmbH & Co. KG | Method and device for surface treatment |
-
2014
- 2014-07-22 CN CN201420404804.3U patent/CN203999830U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152931A (en) * | 2014-07-22 | 2014-11-19 | 浙江大学 | Spiral-flow type stainless steel pickling system and method |
| EP3483304A1 (en) * | 2017-11-13 | 2019-05-15 | Feuerverzinkung Hannover GmbH & Co. KG | Method and device for surface treatment |
| EP3967790A1 (en) * | 2017-11-13 | 2022-03-16 | Seppeler Holding und Verwaltungs GmbH & Co. KG | Method and device for surface treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141210 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |