CN104694948A - Prestressed steel strand aeration acid pickling tank and acid pickling method thereof - Google Patents
Prestressed steel strand aeration acid pickling tank and acid pickling method thereof Download PDFInfo
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- CN104694948A CN104694948A CN201510161287.0A CN201510161287A CN104694948A CN 104694948 A CN104694948 A CN 104694948A CN 201510161287 A CN201510161287 A CN 201510161287A CN 104694948 A CN104694948 A CN 104694948A
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- steel strand
- aeration
- acid pickling
- pickling tub
- acid
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Abstract
The invention discloses a prestressed steel strand aeration acid pickling tank and an acid pickling method thereof and belongs to the manufacturing field of steel strands. The prestressed steel strand aeration acid pickling tank comprises an acid pickling tank body (1), an aeration pipe (2) and a compressed air pump, wherein the aeration pipe (2) is arranged on the periphery of the inner wall of the acid pickling tank body (1) in a spiral mode, one end of the aeration pipe (2) is connected with the external compressed air pump, the other end of the aeration pipe (2) is sealed, and aeration holes (4) are evenly formed in the inner side, facing the interior of the tank, of the aeration pipe (2). The acid pickling method of the aeration acid pickling tank includes the steps of acid adding, aeration, oxide layer removal, washing, phosphorization and boronation so that a steel strand (3) can be subjected to acid pickling. The prestressed steel strand aeration acid pickling tank and the acid pickling method thereof can achieve the goal that the steel strand is cleaned clearly and completely and transported easily, the required acid pickling tank is small, acid pickling efficiency is high, and less acid liquor is consumed.
Description
Technical field
The present invention relates to steel strand and manufacture field, more particularly, relate to a kind of prestress wire aeration pickling tub and acid washing method.
Background technology
Need heating at the wire raw material wire rods of prestress wire industry because of rolling, all can there be one deck chlorination iron sheet on last surface, so all the pickling of surface chlorination iron sheet is fallen with hydrochloric acid or sulfuric acid before drawing.Wire rod reacts at pickling tub, and one by concentration, and two by the time, and three by fully contacting with acid solution surface.Now to the wire rod Dou Shi manufacturer abundant urgent bundle of steel wire of factory, be convenient to next step transport, if separate bundle before pickling, wire rod unclamps, and volume is very large, and sour pond must be built very large, forwards next procedure transport difficult after washing to.As puzzled bundle, because very tight between wire rod gap, what be just difficult to wash is clean, causes next procedure drawing difficulty.Current most of producer does not all understand bundle, takes to extend pickling time and solves.
Stir in the large multipair pickling tub of existing pickling tub, to increase the flow velocity in pickling tub, accelerate pickling reaction, Chinese patent application, application number 201310212602.9, publication date on November 27th, 2013, discloses a kind of pickling tub, comprise acid bath, some disturbance plate and disturbance plate driving mechanism, described disturbance plate is reciprocating in described acid bath under the driving of disturbance plate driving mechanism connects.The present invention by arranging the mobility that disturbance plate accelerates acid solution in pickling tub, thus the compound being conducive to metallic surface diffuses in acid solution, then accelerates pickling process, improves pickling efficiency.This pickling tub only stirs the acid solution in pickling tub, with this, acid solution is fully contacted, and pickling efficiency is not carried out substance and improves, and reaction is abundant not, and acid solution consumption is still larger.
Summary of the invention
1. the technical problem that will solve
For exist in prior art be difficult to wash clean, transport difficult, pickling tub is large, efficiency is not high, consume the many problems of acid solution, the invention provides a kind of prestress wire aeration pickling tub and acid washing method, it can realize cleaning steel strand clean fully, transport simple target, required pickling tub is little, pickling efficiency is high, acid solution consumption is few.
2. technical scheme
Object of the present invention is achieved through the following technical solutions.
A kind of prestress wire aeration pickling tub, comprise pickling tub, also comprise aeration tube and air driven pump, described aeration tube spirals and is arranged at pickling tub inwall surrounding, aeration tube one end is connected with outside air driven pump, the other end is closed, and aeration tube is evenly provided with solarization air cap inside pond.
Further, described aeration tube is the pvc pipe of diameter 12.5mm, and pvc pipe is acidproof, is corrosion-resistantly suitable as equipment use in pickling tub.
Further, described solarization air cap aperture is 5mm, and the spacing of adjacent holes is 10mm.
Further, it is 0.6Mpa that described air driven pump produces air pressure.
Use an acid washing method for described prestress wire aeration pickling tub, its step is as follows:
A) in pickling tub, add the hydrochloric acid of mass concentration 18%-21%, the steel strand tied up are placed in pickling tub inside;
B) air driven pump connects aeration tube, and open air driven pump, adjustable pressure is 0.6Mpa, ventilates to aeration tube, and aeration inner air tube is overflowed by solarization air cap, accelerates acid solution flowing in pickling tub;
C) through the 8min time, take out steel strand, the zone of oxidation of steel strand surface is removed;
D) high-pressure pump is used to step C) steel strand of removing zone of oxidation rinse, and remove the residual acid of steel strand surface;
E) phosphatization: middle temperature phosphating is carried out to steel strand, temperature is 60-80 DEG C, and the ratio of solution free acidity and total acidity is 1:(6-10), total acidity 35-60 " point ", steel strand surface adsorbs one deck phosphatize phosphate coat;
F) boronation: working concentration is the borax neutralization procedure E of 10%-30%) process after the residual acid of steel strand surface, be beneficial to oilness during drawing.
Further, described boronation temperature at 80 DEG C-90 DEG C, solution temperature is high to be conducive to neutralizing fully the residual acid of steel strand surface, increase the solubleness of borax in water and uniformity coefficient and after improving coating steel strand surface temperature and be easy to dry.
3. beneficial effect
Compared to prior art, the invention has the advantages that:
(1) use this pickling tub to carry out steel strand pickling, steel strand without the need to separate bundle, pickling tub can volume a little bit smaller.If the area separating bundle pond original is 12m
2, not understanding bundle pool area only needs 6m
2, the degree of depth is constant, and hydrochloric acid consumption can save half, can reach identical effect;
(2) pickling tub area reduces, and the volatilization of acid solution reduces, and acid solution utilization ratio is high, saves acid solution;
(3) use aeration tube that acid solution is fully contacted with wire rod, surface acid-washing is perfect, and drawn steel wire quality is better, and pickling effect is good;
(4) can make to react when acid solution and wire rod contact reacts rapider efficiency with the pressurized air of aeration tube higher, pickling time reduces, and efficiency increases.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is that aeration tube is towards side schematic diagram in pond.
Number in the figure illustrates:
1, pickling tub; 2, aeration tube; 3, steel strand; 4, solarization air cap.
Embodiment
Below in conjunction with Figure of description and specific embodiment, invention is described in detail.
Embodiment 1
As depicted in figs. 1 and 2, be directed to the pickling of steel strand 3, the invention provides a kind of prestress wire aeration pickling tub, comprise pickling tub 1, aeration tube 2 and air driven pump, described aeration tube 2 spirals and is arranged at the surrounding of pickling tub 1 inwall, arranges evenly arrange in surrounding, between the upper and lower apart from 100mm, aeration tube 2 spirals from top to bottom or spirals from down to up, arranges like this and the pickle solution in full pond can be allowed all to bear pressure, ensures steel strand about 3 all wash cleans.Under preferred scheme, pickling tub 1 is provided with hydrochloric acid trough, and hydrochloric acid trough is provided with alkali lye spray neutralising arrangement, prevents hydrochloric acid when temperature is too high, the pollution caused of volatilizing in a large number.
Aeration tube 2 one end is connected with outside air driven pump, it is 0.6Mpa that air driven pump produces air pressure, the air pressure of 0.6Mpa can make the pickle solution in pickling tub 1 evenly exchange, and certain pressure is formed to pickle solution, in the gap that pickle solution can fully be penetrated between steel strand 3, the reaction of the iron scale in gap is removed.The other end of aeration tube 2 is closed, and aeration tube 2 is evenly provided with solarization air cap 4 inside pond, and solarization air cap 4 aperture is 5mm, between each adjacent holes, the distance at center is 10mm, there is good giving vent to anger property, medium density, can comprehensively give appropriate air and exchange by the pressure of air pressure.Described aeration tube 2 is the pvc pipe of diameter 12.5mm, and pvc pipe is acidproof, is corrosion-resistantly suitable as equipment use in pickling tub.
Use an acid washing method for described prestress wire aeration, its step is as follows:
A) in pickling tub 1, add the hydrochloric acid of mass concentration 18%, the steel strand 3 tied up are placed in pickling tub 1 inner; Do not need steel strand 3 to dismiss, eliminate to tie up and conciliate the bundle time, and operation and convenient transportation, efficiency improves.
B) air driven pump connects aeration tube 2, and open air driven pump, adjustable pressure is 0.6Mpa, ventilate to aeration tube 2, air compressing can allow the pickle solution in full pond all bear pressure, ensures that steel strand 3 fully contact with hydrochloric acid, mobility is fast, and contact is good, up and down whole wash clean.
C) through the 8min time, take out steel strand 3, the zone of oxidation on steel strand 3 surface is removed, and the 8min time can be carried out zone of oxidation for single bundle steel strand 3 and be removed fully.
D) high-pressure pump is used to step C) steel strand 3 of removing zone of oxidation rinse, and remove the residual acid on steel strand 3 surface.
E) phosphatization: use middle temperature phosphating, temperature is 80 DEG C, and the ratio of solution free acidity and total acidity is 1:10; total acidity 60 " point ", steel strand 3 surface adsorption one deck phosphatize phosphate coat, phosphatize phosphate coat is protected steel strand 3; smooth in follow-up drawing of protection, prevents from scratching.
F) boronation: working concentration is 10% borax Na
2b
4o
710H
2o neutralization procedure E) process after the surperficial residual acid of steel strand 3, boronation temperature is at 80 DEG C, be beneficial to oilness during drawing, solution temperature is high to be conducive to neutralizing fully the residual acid of steel strand surface, increase the solubleness of borax in water and uniformity coefficient and after improving coating steel strand surface temperature and be easy to dry.The pH value of borax soln should remain on 9.3, for stability during boronation, ensure that and the stability that borax is combined with steel strand improves the antirust ability of steel strand.
Above method is adopted to carry out pickling to steel strand, pickling is simple and convenient, steel strand are without the need to separating bundle, it is little that pickling tub takies volume, and place demand reduces, and decreases the volatilization of pickle solution, use aeration tube that acid solution is fully contacted with wire rod, surface acid-washing is perfect, and drawn steel wire quality is better, and pickling effect is good.Be beneficial to popularization, reduce pickling cost, waste liquid is few.
Embodiment 1
As depicted in figs. 1 and 2, be directed to the pickling of steel strand 3, the invention provides a kind of prestress wire aeration pickling tub, comprise pickling tub 1, aeration tube 2 and air driven pump, described aeration tube 2 spirals and is arranged at the surrounding of pickling tub 1 inwall, arranges evenly arrange in surrounding, between the upper and lower apart from 100mm, aeration tube 2 spirals from top to bottom or spirals from down to up, arranges like this and the pickle solution in full pond can be allowed all to bear pressure, ensures steel strand about 3 all wash cleans.Under preferred scheme, pickling tub 1 is provided with hydrochloric acid trough, and hydrochloric acid trough is provided with alkali lye spray neutralising arrangement, prevents hydrochloric acid when temperature is too high, the pollution caused of volatilizing in a large number.
Aeration tube 2 one end is connected with outside air driven pump, it is 0.6Mpa that air driven pump produces air pressure, the air pressure of 0.6Mpa can make the pickle solution in pickling tub 1 evenly exchange, and certain pressure is formed to pickle solution, in the gap that pickle solution can fully be penetrated between steel strand 3, the reaction of the iron scale in gap is removed.The other end of aeration tube 2 is closed, and aeration tube 2 is evenly provided with solarization air cap 4 inside pond, and solarization air cap 4 aperture is 5mm, between each adjacent holes, the distance at center is 10mm, there is good giving vent to anger property, medium density, can comprehensively give appropriate air and exchange by the pressure of air pressure.Described aeration tube 2 is the pvc pipe of diameter 12.5mm, and pvc pipe is acidproof, is corrosion-resistantly suitable as equipment use in pickling tub.
Use an acid washing method for described prestress wire aeration, its step is as follows:
A) in pickling tub 1, add the hydrochloric acid of mass concentration 21%, the steel strand 3 tied up are placed in pickling tub 1 inner; Do not need steel strand 3 to dismiss, eliminate to tie up and conciliate the bundle time, and operation and convenient transportation, efficiency improves.
B) air driven pump connects aeration tube 2, and open air driven pump, adjustable pressure is 0.6Mpa, ventilate to aeration tube 2, air compressing can allow the pickle solution in full pond all bear pressure, ensures that steel strand 3 fully contact with hydrochloric acid, mobility is fast, and contact is good, up and down whole wash clean.
C) through the 8min time, take out steel strand 3, the zone of oxidation on steel strand 3 surface is removed, and the 8min time can be carried out zone of oxidation for single bundle steel strand 3 and be removed fully.
D) high-pressure pump is used to step C) steel strand 3 of removing zone of oxidation rinse, and remove the residual acid on steel strand 3 surface.
E) phosphatization: use middle temperature phosphating, temperature is 60 DEG C, and the ratio of solution free acidity and total acidity is 1:6; total acidity 35 " point ", steel strand 3 surface adsorption one deck phosphatize phosphate coat, phosphatize phosphate coat is protected steel strand 3; smooth in follow-up drawing of protection, prevents from scratching.
F) boronation: working concentration is 30% borax Na
2b
4o
710H
2o neutralization procedure E) process after the surperficial residual acid of steel strand 3, boronation temperature is at 90 DEG C.The pH value of borax soln should remain on 9, for stability during boronation, ensure that and the stability that borax is combined with steel strand improves the antirust ability of steel strand.
Below be schematically described the invention and embodiment thereof, this description does not have restricted, and one of embodiment of the also just the invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from this creation aim, designing the frame mode similar to this technical scheme and embodiment without creationary, the protection domain of this patent all should be belonged to.
Claims (6)
1. a prestress wire aeration pickling tub, comprise pickling tub (1), it is characterized in that: also comprise aeration tube (2) and air driven pump, described aeration tube (2) spirals and is arranged at pickling tub (1) inwall surrounding, aeration tube (2) one end is connected with outside air driven pump, the other end is closed, and aeration tube (2) is evenly provided with solarization air cap (4) inside pond.
2. a kind of prestress wire aeration pickling tub according to claim 1, is characterized in that: the pvc pipe that described aeration tube (2) is diameter 12.5mm.
3. a kind of prestress wire aeration pickling tub according to claim 1 and 2, it is characterized in that: described solarization air cap (4) aperture is 5mm, the spacing of adjacent holes is 10mm.
4. a kind of prestress wire aeration pickling tub according to claim 1, is characterized in that: it is 0.6Mpa that described air driven pump produces air pressure.
5. use an acid washing method for the prestress wire aeration pickling tub described in claim 1, its step is as follows:
A) in pickling tub (1), add the hydrochloric acid of mass concentration 18%-21%, the steel strand tied up (3) are placed in pickling tub (1) inner;
B) air driven pump connects aeration tube (2), and open air driven pump, adjustable pressure is 0.6Mpa, ventilates to aeration tube (2);
C) through the 8min time, take out steel strand (3), the zone of oxidation on steel strand (3) surface is removed;
D) high-pressure pump is used to step C) steel strand (3) that eliminate zone of oxidation rinse, and remove the residual acid on steel strand (3) surface;
E) phosphatization: middle temperature phosphating is carried out to steel strand (3), temperature is 60-80 DEG C, the ratio of solution free acidity and total acidity is 1:(6-10), total acidity 35-60 " point ", steel strand (3) surface adsorption one deck phosphatize phosphate coat;
F) boronation: working concentration is the borax neutralization procedure E of 10%-30%) process after the surperficial residual acid of steel strand (3).
6. the acid washing method of prestress wire aeration pickling tub according to claim 5, is characterized in that: described boronation temperature is at 80 DEG C-90 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510161287.0A CN104694948B (en) | 2015-04-07 | 2015-04-07 | A kind of prestress wire aeration pickling tube and acid washing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510161287.0A CN104694948B (en) | 2015-04-07 | 2015-04-07 | A kind of prestress wire aeration pickling tube and acid washing method |
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| CN104694948A true CN104694948A (en) | 2015-06-10 |
| CN104694948B CN104694948B (en) | 2018-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906464A (en) * | 2017-03-27 | 2017-06-30 | 启东市海纳特钢有限公司 | A kind of production technology of small line footpath spring steel wire |
| CN110144574A (en) * | 2019-04-09 | 2019-08-20 | 山东大业股份有限公司 | A kind of lubricant coating of steel wire and the method for forming lubricant coating in steel wire surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786280A (en) * | 2005-12-13 | 2006-06-14 | 武汉市源锋线材制品有限公司 | Treatment technology of prestressed wire material surface |
| CN102277612A (en) * | 2011-08-02 | 2011-12-14 | 威海银兴预应力线材有限公司 | Steel strand drawn wire online phosphorization and saponification device |
| CN203080067U (en) * | 2012-12-24 | 2013-07-24 | 浙江大学 | Stainless steel pickling system |
| CN103397333A (en) * | 2013-08-14 | 2013-11-20 | 中国南方航空工业(集团)有限公司 | Dynamic pickling method and device |
-
2015
- 2015-04-07 CN CN201510161287.0A patent/CN104694948B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786280A (en) * | 2005-12-13 | 2006-06-14 | 武汉市源锋线材制品有限公司 | Treatment technology of prestressed wire material surface |
| CN102277612A (en) * | 2011-08-02 | 2011-12-14 | 威海银兴预应力线材有限公司 | Steel strand drawn wire online phosphorization and saponification device |
| CN203080067U (en) * | 2012-12-24 | 2013-07-24 | 浙江大学 | Stainless steel pickling system |
| CN103397333A (en) * | 2013-08-14 | 2013-11-20 | 中国南方航空工业(集团)有限公司 | Dynamic pickling method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906464A (en) * | 2017-03-27 | 2017-06-30 | 启东市海纳特钢有限公司 | A kind of production technology of small line footpath spring steel wire |
| CN110144574A (en) * | 2019-04-09 | 2019-08-20 | 山东大业股份有限公司 | A kind of lubricant coating of steel wire and the method for forming lubricant coating in steel wire surface |
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| Publication number | Publication date |
|---|---|
| CN104694948B (en) | 2018-07-06 |
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