CN103266344B - Cold-strip steel high-speed Cleaning Line electrolytic clean unit - Google Patents
Cold-strip steel high-speed Cleaning Line electrolytic clean unit Download PDFInfo
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- CN103266344B CN103266344B CN201310181748.1A CN201310181748A CN103266344B CN 103266344 B CN103266344 B CN 103266344B CN 201310181748 A CN201310181748 A CN 201310181748A CN 103266344 B CN103266344 B CN 103266344B
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Abstract
A kind of cold-strip steel high-speed Cleaning Line electrolytic clean unit, comprises electrolyzer, it is characterized in that: described electrolyzer and in battery lead plate, high pressure spray shower pipe and the sinking roller set as more than two covers being arranged side by side; The upper part of the electrolytic cell be arranged side by side more than two covers arranges holistic ramp pan, in ramp pan, be provided with deflector roll, and ramp pan front and back end is provided with band steel entrance and band steel exports, and the top of ramp pan is provided with steam outlet; Battery lead plates in the above electrolyzer be arranged side by side of described two cover are arranged respectively according to the battery lead plate two kinds of positive-negative polarity, and in all electrolyzer rearmost positions of establishing the electrolyzer of negative el to be positioned to be arranged side by side.Electrolytic clean unit cleaning performance of the present invention is good, effectively can eliminate the hydrogen penetrating in cleaning process and be with in steel, avoid the generation of Hydrogen Brittleness Phenomena, ensure that the quality with steel after electrolytic cleaning is unaffected.
Description
Technical field
The present invention relates to a kind of strip cleaning device, particularly a kind of cold-strip steel high-speed Cleaning Line electrolytic clean unit.
Background technology
Electrolytic clean unit is important component devices in strip cleaning equipment (steel mill is often referred to as wet section), and a band steel Cleaning Line is made up of multiple single devices.Generally comprise alkali spray, alkali rinse wash, electrolytic cleaning, high pressure water cleaning, high pressure water spray, the equipment composition such as water scrubs, oven dry, its objective is greasy dirt and the impurity of fully removing belt steel surface, for continuous annealing, zinc-plated, zinc-plated, chromium plating, color coating are ready.
The greasy dirt of cold rolled strip and impurity are generally deposited by the ROLLING OIL of band steel in the operation of rolling, the iron powder that during rolling, surface friction produces, and the dust that band steel gathers, the flue dust that strip steel head welding produces and welding slag etc. produce.Accompanying drawing 2 is greasy dirt on band steel and the schematic diagram of impurity, and in figure, A is iron powder.
Band steel is rinsed to wash washed by most greasy dirt by alkali spray, alkali, but due to the impact of steel plate roughness, particularly autobody sheet breaker roll when rolling carries out frosting treatment, there are many greasy dirt particles and booty particle in such surface of steel plate convex-concave place, be not easy very much to remove, if adopt the method for electrolytic cleaning just can remove these dirts.Accompanying drawing 3 is greasy residues thing schematic diagram that roughness causes, and in figure, B is the residue that roughness causes.
Electrolytic cleaning adopts electrochemical method to remove greasy dirt, generally load onto battery lead plate in band steel both sides, and pass through direct current, when electrode strip polarity chron, the polarity contrary with battery lead plate can be brought because of induction with steel, steel is with to be negative pole when battery lead plate is positive pole, otherwise, be with steel to be positive pole when battery lead plate is negative pole.No matter be with steel to be positive pole or negative pole, all can produce a large amount of gas, the process of electrolytic cleaning is actually the process of brine electrolysis, and the decomposition of water occurs in electrolytic solution, to react precipitated oxygen at anode, to react precipitation hydrogen at negative electrode.Along with belt steel surface gas produces in a large number, force the greasy dirt particle of belt steel surface to leave band steel, serve the effect of further cleaning by degreasing.
Early stage strip cleaning line speed is lower, but along with the progressive strip cleaning line speed of technology is more and more higher, develop into 600 ms/min (more than 400 ms/min at a high speed) by original 200 ms/min, such high velocity sweep just has three problems to need to carry out studying and solving: (1) current density and band steel in electrode relative retention time on the impact of removing greasy dirt; Current density is greatly except speed oil is fast, but current density and not being directly proportional except speed oil, when current density increases to a certain degree, except speed oil increases just not obvious, undue increase current density makes power consumption increase on the contrary, so current density generally remains in certain scope, band steel residence time in electrode is directly proportional to removing greasy dirt speed, but because strip speed increases, band steel residence time in electrode shortens, and the effect of greasy dirt is removed in impact.(2) when be with steel be just (sun) pole time, be called negative (the moon) pole oil removing; When band steel is negative (the moon) pole, be just called (sun) pole oil removing; The oil removing of negative (the moon) pole can produce a large amount of hydrogen at belt steel surface, the drum that the oil removing of negative (the moon) pole produces for just (sun) pole oil removing is little, quantity is many, so its deoiling effect is good, but the hydrogen produced can be seeped in band steel and go, increase the possibility of band steel generation hydrogen embrittlement, hydrogen is seeped in the inherent subsequent coating operation of band steel easily to separate out and causes vesicle in addition, affects the quality of coating.(3) strip speed increase can make electrolyte atomizing increase a large amount of steam of generation thus bring electrolyzer to seal difficulty.
Fig. 3 is the electrolyzer schematic diagram of prior art conventional electrolysis cleaning product line, band steel band steel entrance 11 enters electrolyzer, turn to through deflector roll 3, band steel enters in battery lead plate 5, and high pressure spray shower pipe 4 sprays into electrolytic solution, and band steel 8 proceeds to opposite side battery lead plate by sinking roller 6, after deflector roll turn to, there is band steel exports 1 to export again, electrolytic solution flows into circulation of elecrolyte case by electrolyte outlet 7, then has recycle pump to be input to high pressure spray shower pipe to recycle, and the steam that electrolysis produces is got rid of by steam outlet 12.This electrolytic cleaning tank is applicable to the lower cleaning product line of strip speed, when belt speed declines greatly higher than cleaning performance when 200 ms/min, can not meet the requirement of cleaning quality.The cleaning product line speed of present customer requirement will reach 600 ms/min, and therefore the strip cleaning production line of prior art far can not meet production requirement.
Summary of the invention
The object of this invention is to provide a kind of cold-strip steel high-speed Cleaning Line electrolytic clean unit.
The object of the present invention is achieved like this: a kind of cold-strip steel high-speed Cleaning Line electrolytic clean unit, comprise electrolyzer, battery lead plate, high pressure spray shower pipe and sinking roller is provided with in electrolyzer, bottom of electrolytic tank is provided with electrolyte outlet, electrolyte outlet is communicated with circulation of elecrolyte case by pipeline, high pressure spray shower pipe connects circulating-pump outlet by pipeline, pump entry is communicated with circulation of elecrolyte case, it is characterized in that: described electrolyzer and in battery lead plate, high pressure spray shower pipe and the sinking roller set as more than two covers being arranged side by side; The upper part of the electrolytic cell be arranged side by side more than two covers arranges holistic ramp pan, in ramp pan, be provided with deflector roll, and ramp pan front and back end is provided with band steel entrance and band steel exports, and the top of ramp pan is provided with steam outlet; Battery lead plates in the above electrolyzer be arranged side by side of described two cover are arranged respectively according to the battery lead plate two kinds of positive-negative polarity, and in all electrolyzer rearmost positions of establishing the electrolyzer of negative el to be positioned to be arranged side by side; With the band steel entrance of steel by ramp pan, through deflector roll, enter electrolyzer downwards, then by turning to again by opposite side battery lead plate through sinking roller after the battery lead plate of side, upwards enter ramp pan, enter again in the next electrolyzer that is arranged side by side through deflector roll, until exported by the band steel exports of ramp pan after last electrolyzer, complete electrolytic cleaning task.
Object of the present invention can also realize like this: the described electrolyzer be arranged side by side and in battery lead plate, high pressure spray shower pipe and the sinking roller set as three covers, battery lead plate wherein in the first two cover connects positive source, for anode electrode plate, rear a set of interior battery lead plate connects power cathode, is negative el.
Squeezing roller is provided be with steel exports in ramp pan before.
The present invention has following beneficial effect: effectively can solve cold-strip steel high-speed cleaning tape steel residence time section in battery lead plate, the problem of cleaning performance difference; Solve and produce a large amount of steam because strip speed increase makes electrolyte atomizing increase thus bring electrolyzer to seal difficult problem; Adopt positive and negative electrode two kinds of battery lead plates more in a cell, and be in the end provided with negative el in an electrolyzer, effectively eliminate the hydrogen penetrated in band steel, avoid the generation of Hydrogen Brittleness Phenomena, ensure that the quality with steel after electrolytic cleaning is unaffected.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention
Greasy dirt on Fig. 2 band steel and the schematic diagram of impurity
The greasy residues thing schematic diagram that Fig. 3 roughness causes
The electrolyzer schematic diagram of Fig. 4 prior art conventional electrolysis cleaning product line
Embodiment
In figure, part numbers is as follows: band steel exports 1, squeezing roller 2, deflector roll 3, high pressure spray shower pipe 4, battery lead plate 5, sinking roller 6, electrolyte outlet 7, band steel 8, electrolyzer 9, ramp pan 10, band steel entrance 11, steam outlet 12.
For the problem that band steel high velocity sweep produces, the present invention proposes following solution: more than two electrolyzers are arranged side by side by (1), and band steel continues through multiple electrolyzer, solves the problem being with steel residence time in battery lead plate short.(2) electrolyzer of prior art is decomposed into upper and lower two portions, bottom is multiple monomer cell constructions, battery lead plate is contained in monomer electrolyzer, be convenient to processing, transport and maintenance like this, it is ramp pan that the top of the electrolyzer of prior art is integrated into a cell body, sets within it organizing deflector roll more, share a gangway, which reduces gangway, the steam that the band steel of high-speed cruising is formed is collected in larger ramp pan container, and sealing relatively easily realizes.(3) in the electrolyzer of multiple monomer, before several battery lead plates connect just (sun) pole of power supply, band steel is negative (the moon) pole, and be bear (the moon) pole oil removing mode, drum is little, and quantity is many, and deoiling effect is good.In last monomer electrolyzer, battery lead plate connects negative (the moon) pole, makes to be seeped into hydrogen particle in band steel like this and separates out under the effect of reverse electrode, reduces the condition that band steel hydrogen embrittlement occurs and creates for subsequent figure coating procedure.
Concrete structure of the present invention is: a kind of cold-strip steel high-speed Cleaning Line electrolytic clean unit, comprise electrolyzer 9, battery lead plate 5, high pressure spray shower pipe 4 and sinking roller 6 is provided with in electrolyzer 9, electrolyte outlet 7 is provided with bottom electrolyzer 9, electrolyte outlet 7 is communicated with circulation of elecrolyte case by pipeline, high pressure spray shower pipe 4 connects circulating-pump outlet by pipeline, pump entry is communicated with circulation of elecrolyte case, it is characterized in that: described electrolyzer 4 and in battery lead plate 5, high pressure spray shower pipe 4 and the sinking roller 6 set as more than two covers being arranged side by side; Electrolyzer 4 top be arranged side by side more than two covers arranges holistic ramp pan 10, is provided with deflector roll 3 in ramp pan 10, and ramp pan 10 front and back end is provided with band steel entrance 11 and band steel exports 1, and the top of ramp pan 10 is provided with steam outlet 12; Battery lead plates 5 in the above electrolyzer 4 be arranged side by side of described two cover are arranged respectively according to the battery lead plate two kinds of positive-negative polarity, and in all electrolyzer rearmost positions of establishing the electrolyzer of negative el to be positioned to be arranged side by side; With the band steel entrance 11 of steel 8 by ramp pan 10, through deflector roll 3, enter electrolyzer 9, then by turning to again by opposite side battery lead plate through sinking roller 6 after the battery lead plate of side, upwards enter ramp pan, enter again in the next electrolyzer that is arranged side by side through deflector roll 3, until exported by the band steel exports 1 of ramp pan 10 after last electrolyzer, complete electrolytic cleaning task.
The described electrolyzer 9 be arranged side by side and in battery lead plate 5, high pressure spray shower pipe 4 and the sinking roller 6 set as three covers, the battery lead plate 5 wherein in the first two cover connects positive source, is anode electrode plate, rear a set of in battery lead plate 5 connect power cathode, be negative el.
For making band steel dry before ramp pan band steel exports, be with steel exports 1 in ramp pan 10 before, be provided with squeezing roller 2.
See accompanying drawing 1:1 for being with steel exports, 11 is band steel entrance, 2 is squeezing roller, effect is extracted by the liquid on band steel, 3 is deflector roll, totally six groups, by turn to proceed in electrolyzer by band steel battery lead plate in carry out electrolytic cleaning, 4 is high pressure spray shower pipe, electrolytic cleaning solution is sprayed in electrolyzer with the pressure of 1.2Mp and is with on steel, 5 is battery lead plate, the polarity of battery lead plate represents by sign symbol, the first two battery lead plate connects power supply just (sun) pole, a rear battery lead plate connects power-(the moon) pole, 8 is band steel, 6 is sinking roller, sinking in the electrolytic solution, play the effect that band steel turns to simultaneously, 7 is electrolyte outlet, again pump into high pressure spray shower pipe by recycle pump after circulating box got back to by electrolytic solution to recycle, position that simultaneously can be certain on electrolyzer has overflow port, and be switched in circulating box, make the height that electrolysis liquid surface keeps certain in electrolyzer, 9 is electrolyzer, be made up of rolling hitch structure, 10 is ramp pan, it is an one-piece construction, 12 is steam outlet, because electrolyte temperature is at about 80 DEG C, add the band steel of high-speed cruising, continuous generation steam is discharged by steam outlet 12, purifying treatment is carried out after collecting.
Claims (3)
1. a cold-strip steel high-speed Cleaning Line electrolytic clean unit, comprise electrolyzer (9), battery lead plate (5) is provided with in electrolyzer (9), high pressure spray shower pipe (4) and sinking roller (6), electrolyzer (9) bottom is provided with electrolyte outlet (7), electrolyte outlet (7) is communicated with circulation of elecrolyte case by pipeline, high pressure spray shower pipe (4) connects circulating-pump outlet by pipeline, pump entry is communicated with circulation of elecrolyte case, it is characterized in that: electrolyzer is decomposed into upper and lower two portions, bottom is multiple monomer cell constructions, battery lead plate is contained in monomer electrolyzer, it is ramp pan that top is integrated into a cell body, set within it organizing deflector roll more, share a gangway, the steam that the band steel of high-speed cruising is formed is collected in larger ramp pan container, sealing is relatively easy to be realized, described electrolyzer (9) and in battery lead plate (5), high pressure spray shower pipe (4) and the sinking roller (6) set as more than two covers being arranged side by side, electrolyzer (4) top be arranged side by side more than two covers arranges holistic ramp pan (10), deflector roll (3) are provided with in ramp pan (10), ramp pan (10) front and back end is provided with band steel entrance (11) and band steel exports (1), and the top of ramp pan (10) is provided with steam outlet (12), battery lead plates (5) in the above electrolyzer (9) be arranged side by side of described two cover are arranged respectively according to the battery lead plate two kinds of positive-negative polarity, and in all electrolyzer rearmost positions of establishing the electrolyzer of negative el to be positioned to be arranged side by side, band steel (8) is by the band steel entrance (11) of ramp pan (10), through deflector roll (3), enter electrolyzer (9) downwards, then turn to again by opposite side battery lead plate by after the battery lead plate of side through sinking roller (6), upwards enter ramp pan (10), enter again in the next electrolyzer that is arranged side by side through deflector roll (3), until exported by the band steel exports (1) of ramp pan (10) after last electrolyzer, complete electrolytic cleaning task.
2. cold-strip steel high-speed Cleaning Line electrolytic clean unit according to claim 1, it is characterized in that: the described electrolyzer (9) be arranged side by side and in battery lead plate (5), high pressure spray shower pipe (4) and the sinking roller (6) set as three covers, battery lead plate (5) wherein in the first two cover connects positive source, for anode electrode plate, rear a set of interior battery lead plate (5) connects power cathode, is negative el.
3. cold-strip steel high-speed Cleaning Line electrolytic clean unit according to claim 1 and 2, is characterized in that: in ramp pan (10), band steel exports (1) is front is provided with squeezing roller (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310181748.1A CN103266344B (en) | 2013-05-15 | 2013-05-15 | Cold-strip steel high-speed Cleaning Line electrolytic clean unit |
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| CN201310181748.1A CN103266344B (en) | 2013-05-15 | 2013-05-15 | Cold-strip steel high-speed Cleaning Line electrolytic clean unit |
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| CN103266344A CN103266344A (en) | 2013-08-28 |
| CN103266344B true CN103266344B (en) | 2016-02-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7020452B2 (en) * | 2019-04-22 | 2022-02-16 | Ｊｆｅスチール株式会社 | Vertical metal band processing device, electrode replacement method for vertical metal band processing device, and electrode replacement jig |
| CN111519240B (en) * | 2020-04-26 | 2022-04-15 | 浙江龙盛薄板有限公司 | Safe cleaning line for cold-rolled steel strip |
| CN111850667A (en) * | 2020-07-14 | 2020-10-30 | 肇庆宏旺金属实业有限公司 | Electrolytic cleaning and activating method and system for stainless steel band |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202786491U (en) * | 2012-07-30 | 2013-03-13 | 中冶南方工程技术有限公司 | Liquid chamber type electrolytic cleaning device |
| CN202786490U (en) * | 2012-07-11 | 2013-03-13 | 中冶南方工程技术有限公司 | Electrolytic cleaning electrode for cold-rolling strip steel |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202786490U (en) * | 2012-07-11 | 2013-03-13 | 中冶南方工程技术有限公司 | Electrolytic cleaning electrode for cold-rolling strip steel |
| CN202786491U (en) * | 2012-07-30 | 2013-03-13 | 中冶南方工程技术有限公司 | Liquid chamber type electrolytic cleaning device |
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Address after: 065200 Langfang city of Hebei province Hanvon Sanhe economic and Technological Development Zone Yanjiao Road No. 302 Patentee after: Hebei Shougang Yanjiao machinery Limited by Share Ltd Address before: 065201, No. 11 East Street, Yanjiao Economic Development Zone, Langfang, Hebei, Sanhe Patentee before: Hebei Shougang Yanjiao Machinery Co., Ltd. |
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Address after: 065200 Hebei Province, Sanhe Yanjiao economic and Technological Development Zone Hanvon Road No. 302 Patentee after: Hebei first swallow machinery Limited by Share Ltd Address before: 065200 Hebei Province, Sanhe Yanjiao economic and Technological Development Zone Hanvon Road No. 302 Patentee before: Hebei Shougang Yanjiao machinery Limited by Share Ltd |
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Effective date of registration: 20210127 Address after: 063200 Hebei province Tangshan City Caofeidian District Tang Hai Town West Economic Zone Patentee after: TANGSHAN CAOFEIDIAN DISTR SHOUYAN MACHINERY Co.,Ltd. Address before: No. 302, Hanwang Road, Yanjiao Economic and Technological Development Zone, Sanhe City Patentee before: HEBEI SHOUYAN MACHINERY Co.,Ltd. |
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