CN104775129B - A kind of quick acid dip pickle and method of cold-strip steel - Google Patents
A kind of quick acid dip pickle and method of cold-strip steel Download PDFInfo
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- CN104775129B CN104775129B CN201510218912.0A CN201510218912A CN104775129B CN 104775129 B CN104775129 B CN 104775129B CN 201510218912 A CN201510218912 A CN 201510218912A CN 104775129 B CN104775129 B CN 104775129B
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- descaling bath
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Abstract
The present invention proposes a kind of quick acid dip pickle and method of cold-strip steel.The device includes descaling bath, capping and the pickling circulatory system, capping both sides are connected with hydraulic system, the both ends of descaling bath are equipped with overflow launder, isopipe root is provided with hole for back flow, descaling bath is provided with inlet opening on two side, the pickling circulatory system includes fluid reservoir, inlet tube and liquid back pipe, the side that inlet tube is connected with fluid reservoir is equipped with circulating pump, the other side is connected with jet pipe respectively, jet pipe is entered by inlet opening in descaling bath, liquid back pipe both ends are connected with hole for back flow respectively, it is connected with fluid reservoir in the middle part of liquid back pipe, it further include ultrasonic unit, ultrasonic unit includes supersonic generator and energy converter, energy converter uniform intervals are set to the top of capping, energy converter is connected with supersonic generator by cable.The present invention can improve pickling rate, and make acid cleaning process more easy to control, while production cost is relatively low.
Description
Technical field
The invention belongs to the quick acid dip pickle of the clean technical field of cold-strip steel more particularly to a kind of cold-strip steel and
Method.
Background technology
Hot rolled plate (raw material of cold rolling) hot rolling, batch, cool down and transportational process in can all generate iron scale, these oxygen
The processes such as postorder rolling, annealing can be influenced by changing iron sheet, thus hot rolled plate enter roll it is previous as to carry out pickling obtain it is clear
Clean surface.
Hot rolled silicon steel sheet in coil acid cleaning process mostly uses shallow slot turbulence acid dip technique at present, using hydrochloric acid as pickling medium.
The iron scale generation of cold-rolling pickling process section, hydrochloric acid and hot rolling plate surface is a series of chemically and physically to be acted on, and makes it from steel plate
Surface falls off, dissolves, to obtain clean surface.Shallow slot turbulence acid dip acid solution flow direction also strip direction on the contrary, and leading to
It crosses nozzle and sprays acid solution into acid tank, to accelerate acid solution flowing, realize turbulent flow, pickling speed is made to accelerate.Acid cleaning process is in fact
It is the process that acid solution and scale on surface are chemically reacted in belt steel surface, and chemical reaction rate is by reactant and production
The influence of object diffusion velocity, turbulence acid dip process acid solution and strip relative motion are fast, and reactant hydrogen ion, chlorion etc. are to surface
Diffusion is fast, and reaction product iron ion, ferrous ion are fast to solution diffusion, it is seen that the essence of turbulence acid dip is to speed up belt steel surface
Reactants and products ion is spread, and pickling speed is improved to accelerate to chemically react.
Invention content
Patented technology of the present invention is designed to provide a kind of quick acid dip pickle and method of cold-strip steel, by passing
Ultrasonic unit is arranged on system turbulence acid dip Process ba- sis, accelerates the pickling speed of cold-strip steel.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of quick acid dip pickle of cold-strip steel,
Including descaling bath, capping and the pickling circulatory system, the capping both sides are connected with hydraulic system, and the both ends of the descaling bath are also set
There are overflow launder, the isopipe root to be provided with hole for back flow, inlet opening, the pickling cyclic system are provided on descaling bath two side
System includes fluid reservoir, inlet tube and liquid back pipe, and the side that the inlet tube is connected with the fluid reservoir is equipped with circulating pump, the other side
Be connected respectively with jet pipe, the jet pipe is entered by inlet opening in descaling bath, the liquid back pipe both ends respectively with the hole for back flow
It is connected, is connected with fluid reservoir in the middle part of liquid back pipe, which is characterized in that further includes ultrasonic unit, the ultrasonic unit includes super
Sonic generator and energy converter, the energy converter uniform intervals are set to the top of the capping, and the energy converter is sent out with ultrasonic wave
Raw device is connected by cable.
By said program, the outer wall of the descaling bath is laid with ultrasonic wave absorbing film.
By said program, the capping is made of steel plate, the both sides top groove of two side bottom of capping and the descaling bath
Water-stop is formed, both ends bottom and the descaling bath both ends top of capping are equipped with gap.
Using a kind of above-mentioned method that the quick acid dip pickle of cold-strip steel carries out strip pickling, it is characterised in that：Cold rolling
Strip enters axially into the descaling bath, and the pickle in the fluid reservoir flows into the feed liquor under the action of circulating pump
Guan Zhong, then sprayed by the jet pipe and pickling is carried out to cold-strip steel, start the supersonic generator, is sent out to the energy converter
Electric signal, driving energy converter emit ultrasonic wave to descaling bath, and pickle generates cavitation effect, the dirt on cold-strip steel is made to shell
It falls, pickling chemical reaction velocity can also accelerated, cold rolling is acid washed more quickly, enters described overflow when pickle overflows descaling bath
Chute enters liquid back pipe by the hole for back flow, is finally back in fluid reservoir and recycles.
The beneficial effects of the invention are as follows：1, a kind of quick acid dip pickle and method of cold-strip steel are provided, in conventional turbulent flow
Increase on the basis of acid cleaning process plus ultrasonic technique, quickening pickling speed save the use of acid solution, to save production cost；2、
Since ultrasonic intensity adjusts the appearance that reaction is fast, can more preferably prevent overpickling, owe the defects of pickling so that cold-strip steel
Pickling controllability it is high；3, ultrasonic wave can play the role of improving pickling reaction speed, therefore can not use acid solution heating device
Pickle is heated, equipment input cost is reduced.
Description of the drawings
Fig. 1 is the front view of one embodiment of the invention.
Fig. 2 is the side view of one embodiment of the invention.
Wherein：1. descaling bath, 2. cappings, 3. overflow launders, 4. fluid reservoirs, 5. inlet tubes, 6. liquid back pipes, 7. circulating pumps, 8.
Jet pipe, 9. supersonic generators, 10. energy converters.
Specific implementation mode
To more fully understand the present invention, the invention will be further described with reference to the accompanying drawings and examples.
As shown in Figs. 1-2, the quick acid dip pickle of a kind of cold-strip steel, including descaling bath 1, capping 2 and pickling cyclic system
System, capping is made of steel plate, and the both sides top groove of two side bottoms and descaling bath forms water-stop, the both ends bottom of capping with
It is equipped with gap at the top of descaling bath both ends, so that cold-strip steel is passed therethrough, capping both sides are connected with hydraulic system, pass through hydraulic system
Automatic vertical unlocking；Descaling bath is welded by certain thickness stainless-steel sheet, internal line with rubber, acid corrosion-resistant, anti-corrosion brick paving
Pickling trench bottom and both sides are located at, prevent acid solution from corroding descaling bath, and heat-insulation and heat-preservation, the both ends of descaling bath are additionally provided with overflow launder 3,
It collects and flows back for pickling, isopipe root is provided with hole for back flow, and descaling bath is provided with inlet opening on two side；Pickling recycles
System includes fluid reservoir 4, inlet tube 5 and liquid back pipe 6, and the side that inlet tube is connected with fluid reservoir is equipped with circulating pump 7, the other side point
It is not connected with jet pipe 8, jet pipe is entered by inlet opening in descaling bath, and liquid back pipe both ends are connected with hole for back flow respectively, in liquid back pipe
Portion is connected with fluid reservoir, recycling pickle recycling；Further include ultrasonic unit, ultrasonic unit includes supersonic generator
9 and energy converter 10, energy converter uniform intervals are set to the top of capping, are connected by cable with supersonic generator；Descaling bath
Outer wall be laid with ultrasonic wave absorbing film, prevent injury of the ultrasonic wave to human body.
The method for carrying out the quick pickling of strip using the present apparatus, cold-strip steel enter axially into descaling bath 1, in fluid reservoir 4
Pickle flowed into inlet tube 5 under the action of circulating pump 7, then by jet pipe 8 spray to cold-strip steel carry out pickling, start
Supersonic generator 9 emits electric signal to energy converter 10, and driving energy converter emits ultrasonic wave to descaling bath, and pickle generates empty
To change effect, the dirt on cold-strip steel is made to peel off, pickling chemical reaction velocity can also accelerated, cold rolling is acid washed more quickly,
Enter overflow launder 3 when pickle overflows descaling bath, liquid back pipe 6 is entered by hole for back flow, being finally back to cycle in fluid reservoir makes
With.
When ultrasonic wave occurring into acid solution, it will make liquid that ultrasonic vibration occur, liquid internal increases for pressure instantaneous reduction
In big cycle, when pressure reduces suddenly, the small hole of many vacuum can be formed inside acid solution, the gas meeting being dissolved in acid solution
It is inhaled into hole and forms minute bubbles, but after minute bubbles are formed, pressure increases and is oppressed suddenly, there is time generation impact
Wave, on the one hand these shock waves, which are happened at belt steel surface, to be made to generate percussion to scale on surface, promote the stripping of iron oxide
From, on the other hand surface is promoted to play stirring action, accelerates belt steel surface pickling reaction reactants and products ion diffusion, from
And greatly promote the progress of pickling.
By the cavitation effect principle of ultrasonic wave, accelerate the mobility of acid solution, belt steel surface acid solution made to change the quickening of liquid speed degree,
To accelerate pickling chemical reaction velocity, the use of current pickle is reduced, entire unit speed is further increased, due to ultrasound
Intensity of wave adjusts reaction soon, therefore the appearance that can more preferably prevent overpickling, owe the defects of pickling so that acid washing method of the present invention can
Control property is high.
Claims (2)
1. a kind of quick acid dip pickle of cold-strip steel, including descaling bath, capping and the pickling circulatory system, the capping both sides with
Hydraulic system is connected, and the both ends of the descaling bath are additionally provided with overflow launder, and the isopipe root is provided with hole for back flow, descaling bath both sides
It is provided with inlet opening on wall, the pickling circulatory system includes fluid reservoir, inlet tube and liquid back pipe, the inlet tube and the liquid storage
The connected side of tank is equipped with circulating pump, and the other side is connected with jet pipe respectively, and the jet pipe is entered by inlet opening in descaling bath, institute
It states liquid back pipe both ends to be respectively connected with the hole for back flow, be connected with fluid reservoir in the middle part of liquid back pipe, which is characterized in that further include ultrasound
Wave apparatus, the ultrasonic unit include supersonic generator and energy converter, and the energy converter uniform intervals are set to the capping
Top, the energy converter is connected with supersonic generator by cable, and the outer wall of descaling bath is laid with ultrasonic wave absorbing film, capping
It is made of steel plate, the both sides top groove of two side bottom of capping and descaling bath forms water-stop, the both ends bottom of capping and pickling
Gap is equipped at the top of slot both ends.
2. the method for carrying out pickling using a kind of quick acid dip pickle of cold-strip steel described in the claims 1, feature
It is：Cold-strip steel enters axially into the descaling bath, and the pickle in the fluid reservoir flows under the action of the circulating pump
Enter in the inlet tube, then sprayed by the jet pipe and pickling is carried out to cold-strip steel, starts the supersonic generator, to institute
Energy converter transmitting electric signal is stated, driving energy converter emits ultrasonic wave to descaling bath, and pickle generates cavitation effect, makes cold-strip steel
On dirt peel off, pickling chemical reaction velocity can also accelerated, cold rolling is acid washed more quickly, when pickle overflows descaling bath
Into the overflow launder, liquid back pipe is entered by the hole for back flow, is finally back in fluid reservoir and recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510218912.0A CN104775129B (en) | 2015-04-29 | 2015-04-29 | A kind of quick acid dip pickle and method of cold-strip steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510218912.0A CN104775129B (en) | 2015-04-29 | 2015-04-29 | A kind of quick acid dip pickle and method of cold-strip steel |
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| CN104775129A CN104775129A (en) | 2015-07-15 |
| CN104775129B true CN104775129B (en) | 2018-07-24 |
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| CN106011902A (en) * | 2016-07-06 | 2016-10-12 | 湖北大帆金属制品有限公司 | Pickling tank |
| CN107520261A (en) * | 2017-09-26 | 2017-12-29 | 德清县荣昌冷轧带钢有限公司 | A kind of novel all-in-one cold rolled strip steel production device |
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| CN108914035A (en) * | 2018-09-03 | 2018-11-30 | 德清县欣琪电子有限公司 | A kind of copper covered steel wire tinning stack of double-station |
| CN109161830A (en) * | 2018-09-03 | 2019-01-08 | 德清县欣琪电子有限公司 | A kind of adjustable copper covered steel wire double-station tinning stack |
| CN109536980B (en) * | 2019-01-23 | 2020-12-08 | 安徽清泓环境科技有限公司 | Strip steel pickling circulating equipment |
| CN110420922A (en) * | 2019-08-27 | 2019-11-08 | 中冶南方工程技术有限公司 | Sparge pipe, energy-saving type cleaning device and band processing system |
| CN111235586A (en) * | 2020-02-28 | 2020-06-05 | 马鞍山钢铁股份有限公司 | Low acid consumption environment-friendly pickling acid mist pumping and discharging system |
| CN111607800A (en) * | 2020-06-24 | 2020-09-01 | 江苏苏讯新材料科技有限公司 | Stainless steel strip hydrochloric acid pickling circulation system and method thereof |
| CN112144064B (en) * | 2020-09-16 | 2021-07-13 | 惠民万顺节能新材料有限公司 | Cold-rolled strip steel manufacturing process |
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| JP5262127B2 (en) * | 2008-01-23 | 2013-08-14 | Ｊｆｅスチール株式会社 | How to recover, regenerate and supply acid solutions in steel strip pickling equipment, annealing / pickling equipment and pickling tanks |
| CN203284471U (en) * | 2013-05-27 | 2013-11-13 | 攀钢集团攀枝花钢钒有限公司 | Shallow-slot pickling device |
| CN204234411U (en) * | 2014-09-25 | 2015-04-01 | 杭州华光焊接新材料股份有限公司 | A kind of welding wire continuous ultrasonic cleaning equipment |
| CN204676164U (en) * | 2015-04-29 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of fast acid cleaning device of cold rolled strip |
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| CN2307008Y (en) * | 1997-08-21 | 1999-02-10 | 鞍山钢铁集团公司 | Continuous strip steel pickling shallow slot using hydrochloric acid |
| CN201659108U (en) * | 2010-03-01 | 2010-12-01 | 王兆谦 | Ultrasonic cleaning machine |
| CN202199544U (en) * | 2011-07-26 | 2012-04-25 | 张家港华裕有色金属材料有限公司 | Ultrasonic wave cleaner for titanium and titanium alloy pipe |
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| CN104775129A (en) | 2015-07-15 |
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