CN103590061B - Recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist and using method thereof not - Google Patents
Recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist and using method thereof not Download PDFInfo
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- CN103590061B CN103590061B CN201310467892.1A CN201310467892A CN103590061B CN 103590061 B CN103590061 B CN 103590061B CN 201310467892 A CN201310467892 A CN 201310467892A CN 103590061 B CN103590061 B CN 103590061B
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Abstract
The present invention relates to the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist and method: utilize steel band submergence in the sink, end-plate lower end that the contiguous tank pressure roller in acid tank direction is arranged, sealed attachment is inserted in tank water; And utilizing steel band to be immersed in rinse bath, in this submergence section of acid tank direction, the upper plate of liquid level and overflow water sealing assembly and side plate form simple space, fuse contact surface acid mist at this spatial placement cascade; Two kinds of port envelope acid mist structures, all can seal the acid mist spread in port that acid tank produces and not escape.Roller footpath can cause the acid mist leaked all to fuse through the gap that cap wall is formed, and easily debug by " wet silk group formula " movable sealing structure, and the rotary resistance of roller footpath is little.Be designed to high hat height space, the gaseous state thing hydrogen utilizing pickling to produce and acid mist severe widely different, the feature that both do not fuse, in cap, hydrogen, acid mist are by being in different zones highly respectively, from high cap upper end recover hydrogen, in high cap, lower end is acid mist condenser zone.
Description
Technical field
The present invention relates to the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist and method, belong to strip pickling manufacturing field of equipment.
Background technology
At present, use conventional hot rolled strip for raw material carry out cold rolling before, generally all must carry out scale removal operation.Now conventional thicker oxide skin minimizing technology, general technology is that first alternating bending makes oxide skin part peel off or loosens, and then pickling; Or adopt mechanical means again.
During pickling, more oxide skin reacts by acid and base steel the hydrogen generated to peel off, so it is effective to descale, is the method that cold rolled strip industry generally uses so far.The process characteristic of acid wash, acid need be warmed to 70 degrees centigrade (depending on acids), and pickling effect is good.But, thereby increase the generation of acid mist.What present strip pickling production line was conventional is roller press type technique, and acid tank respectively has a stone roll in end; Forward and backward cover is had above stone roll; Above forward and backward cover, respectively exhaust equipment is installed; Acid tank section principal piece, between the cover of front and back, employing is added a cover, and water is inserted on lid limit, escapes with water seal acid-mist; As band steel passage, import and export are open, or hang that many formulas are soft moulds curtain; Be the negative pressure relying on the flow into and out of end vacuum fan exhausting to be formed in the pressure difference of this region and air, acid mist suction treating column processed further, acid mist is not leaked.With chemical pickling, have hydrogen to produce, prior art is all that outer row does not reclaim.Namely band steel out enters open space afterwards from acid tank, is introduced into residual sour operation; Then through modified roller assembly, the function of this assembly is by spacing for band steel, raises, and in order in residual acid backflow acid tank, is then that water rinses operation.Enter Rinsing Area cleaning subsequently, go out Rinsing Area through modified roller, enter passivation procedure, after purifying, pickling process terminates.More than existing pickling line conventional equipment and conventional process flow.
Background technology strip pickling line weak point is: one is be generally by configuring high-power vacuum fan, the acid mist of generation all can be aspirated in theory, but, at import and export cross section each point, the negative pressure formed when working with the vacuum fan of the T-shaped installation of band steel direct of travel is discrepant, in fact not easily avoids acid mist to overflow; It is many that high-power vacuum fan consumes sour power consumption, and production cost is higher; It is comparatively Universal Problems that current strip pickling escapes that acid mist pollutes air; Two is acid mists is gaseous form of acid solution, and being aspirated is waste acid solution; Vacuum fan power consumption, acid mist treatment tower power consumption, consumptive material, water consumption, acid mist treatment tower also has secondary pollution problem; Three is that the hydrogen that the pickling chemical reaction of considerable amount generates directly is entered air, causes energy dissipation; And hydrogen is the protective atmosphere of applicable band steel heat treatment or can be used for the high-grade energy of acid solution heating etc.; Four is adopt extensive style drip washing, and water consumption is large; Need the water yield of environmental protection treatment many.It is worth mentioning, overflow type pickling is applied to wire acid cleaning, and acid-mist structure is that acid tank in-out end respectively extends the water seal of one section of employing water curtain type.Wire rod compares with band steel, have single wire rod sectional area little, easily exceptionally straight, to be entirely immersed in overflow acid, can side lead-in wire, residual acid easily let out under cascade between dirty, line can be exclusive by the wire rod into and out of the basic full water seal of end section feature, it is better that acid-mist escapes effect; Pickling tank length is shorter.And be with steel not possess
These characteristics, should not adopt overflow type pickling.Existing wire rod overflow type underpickling part is: one is that the acid solution part of condensation flows into water sealed tank, and the part that acid mist is a considerable number of and cascade fuse, and are unfavorable for that saving acid economizes on water; Two is that hydrogen is not recycled, and this is also unfavorable for acid mist condensation.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design both recyclable hydrogen, again not pump drainage acid mist, and there is strip pickling line and the method for water-saving result.
Design: the present invention in structure design primarily of forward (FWD) carrying roller; Forward (FWD) tank; Forward (FWD) tank pressure roller; Port lower end plug-in water sealing assembly; Forward (FWD) spacing and changed course assembly; Acid tank; Acid tank height cap; Acid tank is into and out of band pressure roller; Acid tank is into and out of band pressure roller height cap; Go out to be with spacing and changed course assembly; Overflow water sealing assembly; Rinse bath; Rinse bath pressure roller; " wet silk group formula " dynamic sealing assembly of acid tank pressure roller and modified roller; Air-blowing is swept and drip washing assembly, roller between groove; Purifying groove; Purifying groove pressure roller; Gas sweep module; Go out to be with carrying roller; Acid heating and circulation device; The compositions such as electricity instrument controlling box.Constructional feature of the present invention is set forth below by pickling process order:
The present invention is provided with forward (FWD) carrying roller, forward (FWD) tank, forward (FWD) tank pressure roller, forward (FWD) spacing and changed course assembly, above-mentioned setting can make steel band be immersed in forward (FWD) tank, above the submergence section in acid tank direction, be provided with end-plate lower end plug-in water sealing assembly, this assembly is by the capping of condensation downflow system, upper plate, side plate, opening welding flange, acidproof rubber seal part, the compositions such as shrouding, more than arrange and utilize the submergence of band steel in the sink, contiguous tank pressure roller, the lower end of the end-plate of sealed attachment is inserted in tank water, the acid mist spread in port that acid tank produces all can be sealed and not escape, the capping of condensation downflow system has manhole plate function in addition, forward (FWD) tank secondary role is the dirt in band steel face capable of washing.Forward (FWD) modified roller that is spacing and changed course assembly coordinates with forward (FWD) rinse bath pressure roller and forms inclined-plane, and the water that band steel is taken out of from forward (FWD) tank flows back to forward (FWD) tank along inclined-plane.
Intensity with steel is comparatively large, has again rolled form deviation, and band steel, in pickling operating mode, can swing and fluctuate up and down, can apply larger reactive force to touching thing.In rinse bath, acid tank and purifying groove, face, left and right is granite slab, can limit band steel and to swing scope; Be granite slab below, the above is grouan roll surface, can limit the upper and lower fluctuation range of band steel.
Spacing and the changed course module position at forward (FWD), face, left and right is granite slab, can limit band steel and to swing scope; Be changed course roll surface below, playing position-limiting action above, is upper limit axle.
Upper limit axial wood matter of the present invention is acid-resistant stainless steel, connects with upper limit axle, is also the acid resisting material of high strength, and the power of being touched by band steel by upper limit pedestal cap passes to the mounting bracket of high strength from upper limit axle, avoid the acidproof cover body that intensity is less; For operation and easy to maintenance, make dismountable, upper limit pedestal possesses the function of manhole plate in addition; The water-sealed component arranged makes acid mist not leak, and adds the dirty coaming plate of condensation, very most of condensation acid solution below this lid is drawn and drips back in cover.
Enter acid tank section, feature of the present invention is: the original functional part only playing simple closed acid mist function be commonly called as acid tank cover, front shroud, back cover is all designed to high hat, and called after acid tank height cap, acid tank forward (FWD) pressure roller height cap, acid tank go out to be with pressure roller height cap respectively.
The object being designed to high cap shaped is: utilize the height space that high hat is formed, and the gaseous state thing that pickling produces is covered and separated up and down; Gaseous state thing fundamental component is acid mist and hydrogen, and acid mist is volatilized by acid and hydrogenchloride that in acid solution, chemical reaction generates or the sour gas such as hydrogen sulfide, the solvate of water-soluble steam, the gas such as hydrogenchloride or hydrogen sulfide is very easily water-soluble, and hydrogen is water-soluble hardly; Distinguish by severe, the two difference is very large; And hydrogen and acid mist do not fuse; So each gaseous state thing in cover is by being in different zones highly respectively, with hydrogen, by the speed of pump drainage, upper and lower level fluctuates two region interface.
In relative closure space, in high cap, gaseous state thing is in: high cap upper end is hydrogen region, at the recyclable hydrogen in this region; Appropriate extraction; Newborn hydrogen rises supplementary continually.In high cap, lower end is acid mist region, in this region, instant the fusing with water vapour of the gases such as newly-generated hydrogenchloride or hydrogen sulfide becomes acid mist, and------acid mist constantly generate fill the air supplementary---reaches once more to saturation ratio and to be condensed into acid solution dirty to be condensed into acid solution after the acid mist degree of reaching capacity of generation dirty ..., be in dynamic circulation.And during actual production, acid solution need be heated, water vapour is sufficient; And high cap wall is in air physical environment, naturally there is condensation effects.Each cap is relatively independent, acid mist not easily channelling between each cap, and in each cap, hydrogen and acid mist fluctuate more stable; High hat also add condensation area.Peripherally in inverted U-shaped under high cap, U-shaped base and high cap seat board are sitting on acid tank side plate and connection board, U-shaped inner edge and the dirty plate of condensation and high cap wall are with being integrated, acid tank is flowed back to along under limit in order to after acid mist condensation: and this inner edge is long under high cap seat board, limit high cap by inclination during side force, (only having flat lifting to certain altitude just can shift out); Outside U-shaped, namely water seal board inserts in the U-shaped tank that on acid tank, outside U-board is communicated with biside plate, carries out water seal to the acid mist through gap.Like this, the acid solution formed by condensation seldom flows into outside U-lag, has both economized on acid amount, and has avoided again the too fast acidifying of the water in U-shaped water sealed tank, can water saving.For improving pickling efficiency, band steel acid tank length is generally all more than 30M, and acid tank height cap has multiple, reclaims, contact between each high cap with three-way tube valve in order to hydrogen is unified; And the controlled hydrogen output valve of corresponding configuration gas composition analyzer, this analyser output signal, configuration minute-pressure indicator gauge etc.Band steel go out acid tank backward on enter out band spacing and changed course assembly, the structure and fuction of this assembly is spacing with forward (FWD) and the assembly that alters course is identical; The most of following current of residual acid is returned acid tank or is instilled residual sour supporting plate and returns acid tank.
The present invention is provided with overflow water sealing assembly, rinse bath, rinse bath pressure roller, goes out to be with spacing and changed course assembly, above-mentioned setting can make steel band be immersed in rinse bath, in acid tank direction, the upper plate of this submergence section liquid level and overflow water sealing assembly and side plate form simple space, at this spatial placement cascade.Cascade solvable conjunction contact surface acid mist, all can seal the acid mist spread in port that acid tank produces and not escape; Because band steel acid tank is long, port cascade area and liquid level area always relate to acid mist area with acid tank compared with accounting little, so water-soluble acid mist accounting is not quite, very most acid mist is condensed into acid solution direct reuse.It must be noted that: above two kinds of ports envelope acid mist structure, i.e. shrouding lower end plug-in water sealing assembly and overflow water sealing assembly, the acid mist spread in port that acid tank produces all can be sealed and not escape, can use respectively, also can only use wherein a kind of in two ends.
Acid mist of the present invention not pump drainage, just there is strict requirement to the stopping property in pickling cover, require that in cover be pressure-fired, so could form acid mist saturation ratio environment, and acid mist not leak be to basic demand of the present invention, and strip pickling is due to features such as band hardness of steel are large and acid tank is long, and the present invention adopts roller press type, the many rollers of pickling line are driven roll, and roll shaft footpath and the dynamic seal of cover wall are large keys of success or failure of the present invention.
The present invention is provided with " wet silk group formula " movable sealing structure, principle of design is the characteristic utilizing acid mist and water electrode easily to mix, and the silk of appropriate degree of tightness is rolled into a ball bootable flowing water and filled gap in needing to seal.At dynamic seal gap place, it is all water-soluble that the acid mist appeared at gap place rolled into a ball by the wet silk around roller footpath, therefore do not have acid mist to overflow.Sour water process Posterior circle uses.The silk group of appropriateness degree of tightness is little to diameter of axle rotational resistance." wet silk group formula " movable sealing structure is primarily of compositions such as water filling pipe valve, upper semi-circle trim ring, resistance to aching and limp silk group, hydrolock rising pipe, lower half circle trim ring, acid-resisting rubber pads, hydrolock rising pipe irrigating gate height is lower than lower end, roller footpath, the silk group of supporting convenient width vertically, acid solution fused is like this unlikely to cross flow vertically, and rising pipe water seal can prevent from leaking acid mist in the middle of resistance to aching and limp silk group.Trim ring is divided into half garden in order that easy to adjust.
" formula rolled into a ball by wet silk " dynamic seal of acid tank pressure roller and modified roller, method is identical, and structure is slightly different.
The residual acid in rinse bath cleaning tape steel face, so groove scavenging solution must neutralize to recycle with alkali solution.Rinse bath pressure roller coordinates with roller between groove and forms inclined-plane, and the liquid that band steel is taken out of from rinse bath flows back to rinse bath along inclined-plane; Between groove, roller relative horizontal position is slightly high.
Air-blowing sweep and drip washing arrangement of components between rinse bath pressure roller and groove between roller, residual water backflow rinse bath, such compact construction; This assembly function part is arranged on mobile trolley, the position ground track vertical with band steel direct of travel expels dolly, can carry out threading operation.
In order to cleaning performance well water saving again, the present invention adopts gas, the drip washing of water built-up type; General employing four is managed, first pipe tracheae, the residual water (containing more impurity in residual water) taken out of from rinse bath by band steel purges clean, second pipe water pipe, the oxymuriate that cleaning tape steel face is residual or vitriol (oxymuriate is easier to cleaning), the 3rd pipe water pipe, whether the cleaning quality depending on front water pipe determines open-minded, 4th pipe tracheae, purges dry band steel face clear water, in order to avoid dilution refined solution.
After band steel goes out purifying liquid level, the present invention is provided with gas sweep module, contributes to water saving, saves purifying agent and the drying of band steel.
The theory related to the present invention several feature below or principle are simply reported:
1, (hydrochloric acid) pickling (mainly) chemical equation: Fe+2HCl=FeCl
2+ H
2
(sulfuric acid) pickling (mainly) chemical equation: Fe+H
2sO
4=FeSO
4+ H
2
From the generation of the visible hydrogen of reaction formula, estimating of molecular weight can draw the output of hydrogen.
From the above-mentioned reaction formula proportion of strip pickling acid consumption speed, known hydrogen gas production rate.
Strip pickling area is large, and acid tank is long, so the more worth recovery of hydrogen output.
Hydrogen recovery of the present invention also contributes to acid mist condensation.The nothing of cascade and acid tank height cap compresses and places, and ensure that in cap, hydrogen gathering is safe.
2, acid mist emission speed: to fluid molecule amount, with corresponding to the saturated vapo(u)r pressure component in air under fluid temperature, with unit surface water vapour vaporator rate, relevant with evaporation area etc.
3, water Cleaning principle:
Mass transfer process meets Fourier's law: dq ∝ dvw △ c
Namely rate of mass transfer and rinsing liquid movement velocity, with the rinsing water yield, with workpiece and rinse water in required for clean the concentration difference of material, be associated.
Air-blowing of the present invention is swept and drip washing assembly, significantly can expand required concentration difference of cleaning material in workpiece and rinse water, therefore can reduce water loss.
Technical scheme 1: recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist not, and forward (FWD) carrying roller is positioned at tank front end; Tank pressure roller is positioned at tank; The lower end of the shrouding of end-plate lower end plug-in water sealing assembly is inserted in the water of tank; Forward (FWD) is spacing and alter course assembly between tank and acid tank; Acid tank forward (FWD) pressure roller and acid tank go out the front and rear laid respectively at pressure roller in acid tank; Acid tank forward (FWD) pressure roller height cap, more than one piece acid tank height cap and acid tank go out to be with the water seal of pressure roller height cap to cover on acid tank mouth, and acid tank forward (FWD) pressure roller and acid tank are gone out jacket with pressure within it; Acid tank forward (FWD) pressure roller height cap, more than one piece acid tank height cap are gone out with acid tank the hydrogen pipe valve be all equipped with pressure roller height cap and are communicated with by hydrogen series winding pipe, and hydrogen is exported to user; Go out to be with spacing and alter course assembly between acid tank and rinse bath; Residual sour supporting plate is at acid tank and go out to be with between spacing and changed course assembly; Follow by overflow water sealing assembly; Rinse bath pressure roller is positioned at rinse bath; Air-blowing sweep and drip washing arrangement of components between rinse bath pressure roller and groove between roller; Purifying groove is after rinse bath; Above purifying groove is adjacent with rinse bath, be provided with roller between groove, purifying groove pressure roller is positioned at purifying groove, and gas sweep module is positioned at before band carrying roller.
Technical scheme 2: recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist not, differing from technical scheme 1 part is: forward (FWD) end and go out these two ends of band edge and all adopt end-plate lower end plug-in water sealing assembly shutoff acid mist.The advantage of technical scheme 2 without water service pump, can deduct the area of the molten acid mist of cascade, energy-saving acid.Shortcoming is that when producing adjustment, part operation personnel may feel not too to facilitate.
Technical scheme 3: recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist not, differs from scheme 1 and scheme 2 part is: forward (FWD) end and go out these two ends of band edge and all adopt overflow water sealing assembly shutoff acid mist.
Method: the method for the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist, band steel first enters tank through the changed course of forward (FWD) carrying roller, pass through at tank pressure roller lower roll surface, enter plug-in water sealing assembly region, shrouding lower end, under the state that band steel submerges in water, shrouding is by the complete shutoff in space on its ingress's water surface, then steel upwards and changed course assembly spacing through forward (FWD) is with, alter course through modified roller, enter acid tank downwards, go out to be with pressure roller lower roll surface through acid tank forward (FWD) pressure roller lower roll surface and acid tank, acid tank forward (FWD) pressure roller height cap is had in vain through on region in way, hydrogen series winding pipe, acid tank height cap, acid tank goes out to be with pressure roller height cap, in residual sour supporting plate overhead process, upwards enter out band spacing and changed course assembly, through modified roller changed course after, enter overflow water sealing assembly region, and enter rinse bath downwards, through rinse bath pressure roller lower roll surface, under the state that band steel submerges in water, cascade is by complete for space on it shutoff, be with steel to be upward through air-blowing subsequently to sweep and drip washing assembly, through between groove, roller changed course, enters purifying groove downwards, from purifying groove pressure roller lower roll surface through later, is upward through gas sweep module, finally by going out to be with carrying roller to alter course, terminates pickling process.
The present invention is compared with background technology, and one is the height space utilizing high hat to be formed, and the gaseous state thing that pickling produces is covered and is separated up and down, realize the recovery of hydrogen, and hydrogen recovery also contributes to acid mist condensation; Two is not pump drainage acid mists; Closing cover, cover in, acid mist is in: generate--saturated-condensation-generation-running balance; Three is water saving, energy-conservation, joint consumptive material, environmental protection: the present invention eliminates the acid mist treatment tower of water consumption consumptive material power consumption; Acid tank is returned in the drainage of most condensation acid solution, favourable to joint acid, the also not easily acidifying of acid tank water seal use water; Adopt air-blowing to sweep and the thin water wash of multitube fan stream shower nozzle, significantly can expand required concentration difference of cleaning material in workpiece and rinse water, drip washing water consumption can be decreased; Four is that purifying groove goes out band place and increases air-blowing and sweep, and contributes to water saving, saves purifying agent and band steel is dry; Five is placing without compressing of cascade and acid tank height cap, ensure that the safety that in cap, hydrogen is assembled.
Accompanying drawing explanation
Fig. 1 (Fig. 1 a, Fig. 1 b) is the front view of the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist.
Fig. 2 is the vertical view structural representation of Fig. 1.
Fig. 3 is that in Fig. 2, A, to stagewise cutaway view, illustrates shrouding lower end plug-in water sealing assembly.
Fig. 4 is that in Fig. 1, B, to analysing and observe, illustrates acid tank height cap.
Fig. 5 be in Fig. 4 I to analysing and observe, illustrate under high cap along partial enlargement.
Fig. 6 is that in Fig. 1, C is to analysing and observe, and diagram acid tank pressure roller height cap coordinates.
Fig. 7 is that in Fig. 2, D is to stagewise cutaway view, and diagram acid tank pressure roller height cap connects and oversleeve position view with changed course jacket.
Fig. 8 is that in Fig. 1, E, to analysing and observe, illustrates modified roller upper limit.
Fig. 9 is that in Fig. 8, G, to analysing and observe amplification, illustrates modified roller saturating roller footpath place " wet silk group formula " dynamic seal.
Figure 10 is that in Fig. 1, F, to analysing and observe, illustrates mobile trolley pickling and threading two kinds of working positions.
Figure 11 is II enlarged diagram in Figure 10, and diagram air-blowing is swept and drip washing assembly amplifies.
Figure 12 is the overall schematic front view of Fig. 1 a and Fig. 1 b and Fig. 2 a and Fig. 2 b respectively with Figure 13, wherein: 1 forward (FWD) carrying roller; 2 tanks; 3 tank pressure rollers; 4 end-plate lower end plug-in water sealing assemblies: 4.1 condensation downflow system cappings, 4.2 upper plates, 4.3 side plates, 4.4 opening welding flanges, 4.5 acidproof rubber seal parts, 4.6 shroudings; 5 forward (FWD)s spacing and changed course assembly; 6 acid tanks; 7 acid tank forward (FWD) pressure rollers; 8 acid tank forward (FWD) pressure roller height caps; 9 hydrogen tandem tubes; 10 acid tank height caps: 10.1 hydrogen pipe valves, 10.2 gas composition analyzers, 10.3 high cap seat boards, the dirty plate of 10.4 condensation, 10.5 water seal boards; 11 acid tanks go out to be with pressure roller; 12 acid tanks go out to be with pressure roller height cap: 12.1 minute-pressure indicator gauges, 12.2 acid tank pressure rollers " wet silk group formula " dynamic sealing assembly; 13 residual sour supporting plates; 14 arm aperture: 14.1 arm aperture flanges, 14.2 even refer to acidproof arm cover; 15 transparent windows; 16 go out to be with spacing and changed course assembly: 16.1 upper limit pedestal caps, the dirty coaming plate of 16.2 condensation, 16.3 water-sealed components, 16.4 upper limit axles, 16.5 mounting brackets, 16.6 modified rollers; 17 modified rollers " wet silk group formula " dynamic sealing assembly: 17.1 water filling pipe valves, 17.2 upper semi-circle trim rings, 17.3 resistance to aching and limp silk groups, 17.4 hydrolock rising pipes, 17.5 lower half circle trim rings, 17.6 acid-resisting rubber pads; 18 overflow water sealing assemblies: 18.1 overflow waters seal up plate, 18.2 overflow water seal side plates, 18.3 liquid levels, 18.4 cascades, 18.5 water pumps; 19 rinse bath pressure rollers; 20 rinse baths; 21 air-blowings are swept and drip washing assembly: 21.1 mobile trolleys, 21.2 second gas scavenging ducts, 21.3 second drip washing pipes, 21.4 first drip washing pipes, 21.5 first gas scavenging ducts, 21.6 fan flow nozzles; Roller between 22 grooves; 23 purifying grooves; 24 purifying groove pressure rollers; 25 gas sweep module; 26 go out to be with carrying roller.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-13.Recyclable hydrogen is the water-saving strip pickling line of pump drainage acid mist not, and forward (FWD) carrying roller 1 is positioned at tank 2 front end; Tank pressure roller 3 is positioned at tank 2; The lower end of the shrouding 4.6 of end-plate lower end plug-in water sealing assembly 4 is inserted in the water of tank 2; Forward (FWD) is spacing and alter course assembly 5 between tank 2 and acid tank 6; Acid tank forward (FWD) pressure roller 7 and acid tank go out the front and rear laid respectively at pressure roller 11 in acid tank 6; Acid tank forward (FWD) pressure roller height cap 8, acid tank height cap 10(more than one piece) and acid tank go out to be with the water seal of pressure roller height cap 12 to cover on acid tank 6 mouthfuls, and go out to be with pressure roller 11 to cover within it acid tank forward (FWD) pressure roller 7 and acid tank; Hydrogen series winding pipe 9 is by acid tank forward (FWD) pressure roller height cap 8, acid tank height cap 10(more than one piece) go out with acid tank the hydrogen pipe valve 10.1 be all equipped with pressure roller height cap 12 and be communicated with, hydrogen is exported to user; Residual sour supporting plate 13 is at acid tank 6 and go out to be with between spacing and changed course assembly 16; Cover wall arranges arm aperture 14 and transparent window 15; Go out to be with spacing and alter course assembly 16 between acid tank 6 and rinse bath 20; Roller is stretched and is adopted " formula rolled into a ball by wet silk " dynamic sealing assembly 17 with the dynamic seal of cover wall; Follow by overflow water sealing assembly 18; Rinse bath pressure roller 19 is positioned at rinse bath 20; Air-blowing is swept and drip washing assembly 21 to be arranged between rinse bath pressure roller 19 and groove between roller 22; Purifying groove 23 is after rinse bath 20; Above purifying groove 23 is adjacent with rinse bath 20, be provided with roller 22 between groove, purifying groove pressure roller 24 is positioned at purifying groove 23, and gas sweep module 25 is positioned at before band carrying roller 26.Acid tank forward (FWD) pressure roller height cap 8, acid tank height cap 10(more than one piece), acid tank goes out to be with pressure roller height cap 12 to be all designed to high hat, from high cap upper end recover hydrogen, in high cap, lower end is acid mist condenser zone.Peripherally in inverted U-shaped under high cap, high cap seat board 10.3 is sitting in acid tank 6 master plate and is communicated with on water eliminator, the dirty plate of condensation 10.4 and high cap wall are with being integrated, in order to after acid mist condensation along flowing back to acid tank 6 under limit: the dirty plate of condensation 10.4 is long high cap seat board 10.3 times, limit high cap by inclination during side force, water seal board 10.5 inserts in the U-shaped tank that acid tank 6 master plate and water eliminator form, and carries out water seal to the acid mist through gap.End-plate lower end plug-in water sealing assembly 4 is made up of condensation downflow system capping 4.1, upper plate 4.2, side plate 4.3, opening welding flange 4.4, acidproof rubber seal part 4.5, shrouding 4.6 etc., and the lower end of the end-plate 4.6 of sealed attachment is inserted in tank 2 water; Can by whole for port acid mist shutoff.Condensation downflow system capping 4.1 has manhole plate function in addition.Spacing and the changed course assembly 5 of forward (FWD), go out and stretch with the roller of modified roller that is spacing and changed course assembly 16, when through cover sidewall, adopt modified roller " wet silk group formula " movable sealing structure 17; " wet silk group formula " movable sealing structure 17 rolls into a ball 17.3 by water filling pipe valve 17.1, upper semi-circle trim ring 17.2, resistance to aching and limp silk, hydrolock rising pipe 17.4, lower half circle trim ring 17.5, formation such as acid-resisting rubber pad 17.6 grade; Hydrolock rising pipe 17.4 irrigating gate height is lower than lower end, roller footpath, and the silk group of supporting convenient width vertically, acid solution fused is like this unlikely to cross flow vertically, and rising pipe water seal can prevent from leaking acid mist in the middle of resistance to aching and limp silk group.The pressure roller roller that acid tank forward (FWD) pressure roller 7, acid tank go out with pressure roller 11 is stretched, and when through cap wall, adopt " wet silk group formula " movable sealing structure 12.2, its dynamic sealing method is identical with modified roller " formula rolled into a ball by wet silk " dynamic sealing assembly 17.Go out the upper limit axle 16.4 above with the modified roller in spacing and changed course assembly 16, arrange with the upper limit pedestal cap 16.1 above it and mounting bracket 16.5 and be connected into one, the power that band steel is upwards departed from is born by mounting bracket 16.5, protects acidproof cover body; The high-order modified roller 16.6 arranged makes in the liquid return groove of band steel face, and upper limit pedestal cap 16.1 has manhole plate function in addition, and the dirty coaming plate 16.2 of condensation guides condensation acid solution to instill in cover, and water-sealed component 16.3 makes acid mist not leak.Spacing and the changed course assembly 5 of forward (FWD) with go out to be with spacing and assembly 16 structure that alters course is identical.Air-blowing is swept and drip washing assembly 21 is positioned at the top at rinse bath 20 rear portion; Gas sweep module 25 is positioned at the top at purifying groove 23 rear portion; Air-blowing is swept and the gentle sweep module 25 of drip washing assembly 21 is all arranged on mobile trolley; Air-blowing is swept and drip washing assembly 21 is made up of mobile trolley 21.1, second gas scavenging duct 21.2, second drip washing pipe 21.3, first drip washing pipe 21.4, first gas scavenging duct 21.5 and fan flow nozzle 21.6.The sidewall locations of giving one a leg up may be needed when leader tape and pickling, arm aperture 14 is set, will even refer to that the arm running-on of acidproof arm cover 14.2 connects with cover outer side seal by arm aperture flange 14.1, and transparent window 15 is set.
Embodiment 2: on the basis of embodiment 1, the method of the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist, band steel first enters tank 2 through forward (FWD) carrying roller 1 changed course, pass through at tank pressure roller 3 lower roll surface, enter plug-in water sealing assembly 4 region, shrouding lower end, under the state that band steel submerges in water, shrouding 4.6 is by the complete shutoff in space on its ingress's water surface, then steel upwards and changed course assembly 5 spacing through forward (FWD) is with, alter course through modified roller, enter acid tank 6 downwards, the lower roll surface with pressure roller 11 is gone out through acid tank forward (FWD) pressure roller 7 and acid tank, passage in transit region is had acid tank forward (FWD) pressure roller height cap 8 in vain, hydrogen series winding pipe 9, acid tank height cap 10(more than one piece), acid tank goes out to be with pressure roller height cap 12, pass through in residual sour supporting plate 13 overhead, upwards through going out to be with spacing and changed course assembly 16, after modified roller changed course, enter overflow water sealing assembly 18 region, and enter rinse bath 20 downwards, through rinse bath pressure roller 19 lower roll surface, under the state that band steel submerges in water, the acid mist touched in its port fuses by cascade 18.4, shutoff acid mist, be with steel to be upward through air-blowing subsequently to sweep and drip washing assembly 21, through between groove, roller 22 alters course, and enters purifying groove 23 downwards, from purifying groove pressure roller 24 _ _ _ roll surface through later, is upward through gas sweep module 25, finally by going out to be with carrying roller 26 to alter course, terminates pickling process.
Embodiment 3: on the basis of embodiment 2, band steel is utilized to be immersed in rinse bath 20, plate 18.1 is sealed up and overflow water seal side plate 18.2 forms simple space at this submergence section liquid level 18.3 and the overflow water of overflow water sealing assembly 18, the top-down cascade 18.4 in this space pumped by water pump 18.5, the fused acid mist touched, makes this port overflow without acid mist.
Produce before preparation work: by forward (FWD) spacing and changed course assembly 5 upper limit pedestal cap, go out and take apart from the mounting bracket be positioned at separately with upper limit pedestal cap 16.1, the connecting parts that acid tank forward (FWD) pressure roller height cap 8 and acid tank go out with pressure roller height cap 12 is taken apart and shifted out, remove condensation downflow system capping 4.1, remove acid tank height cap 10, then from each dew mouth, successively leader tape nylon rope order is passed along strip pickling position.Then steel will be with to introduce acid tank 6 import by nylon rope, check errorless after, above-mentioned frame lid and cap are installed, build.After heating, acid solution is injected, and opens water pump 18.5 simultaneously.
Produce: band steel first alters course through forward (FWD) carrying roller 1, enter tank 2, pass through at tank pressure roller 3 lower roll surface, enter plug-in water sealing assembly 4 region, shrouding lower end, under the state that band steel submerges in water, shrouding 4.6 is by the complete shutoff in space on its ingress's water surface, then steel upwards and changed course assembly 5 spacing through forward (FWD) is with, alter course through modified roller, enter acid tank 6 downwards, go out to be with pressure roller 11 lower roll surface through acid tank forward (FWD) pressure roller 7 lower roll surface and acid tank, acid tank forward (FWD) pressure roller height cap 8 is had in vain through on region in way, hydrogen series winding pipe 9, acid tank height cap 10, acid tank goes out to be with pressure roller height cap 12, in residual sour supporting plate 13 overhead process, upwards through going out to be with spacing and changed course assembly 16, after modified roller changed course, enter overflow water sealing assembly 18 region, and enter rinse bath 20 downwards, through rinse bath pressure roller 19 lower roll surface, under the state that band steel submerges in water, cascade is by complete for space on it shutoff, be with steel to be upward through air-blowing subsequently to sweep and drip washing assembly 21, through between groove, roller 22 alters course, and enters purifying groove 23 downwards, from purifying groove pressure roller 24 lower roll surface through later, is upward through gas sweep module 25, finally by going out to be with carrying roller 26 to alter course, terminates pickling process.
It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall within the scope of protection of the present invention.
Claims (10)
1. the recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist, is characterized in that: forward (FWD) carrying roller (1) is positioned at tank (2) front end; Tank pressure roller (3) is positioned at tank (2); The lower end of the shrouding (4.6) of end-plate lower end plug-in water sealing assembly (4) is inserted in the water of tank (2); Forward (FWD) spacing and changed course assembly (5) be positioned between tank (2) and acid tank (6); Acid tank forward (FWD) pressure roller (7) and acid tank go out the front and rear laid respectively at pressure roller (11) in acid tank (6); Acid tank forward (FWD) pressure roller height cap (8), more than one piece acid tank height cap (10) and acid tank go out to be with pressure roller height cap (12) water seal to cover on acid tank (6) mouth, and go out to be with pressure roller (11) to cover within it by acid tank forward (FWD) pressure roller (7) and acid tank; Acid tank forward (FWD) pressure roller height cap (8), more than one piece acid tank height cap (10) and acid tank are gone out the hydrogen pipe valve (10.1) be all equipped with pressure roller height cap (12) and are communicated with by hydrogen series winding pipe (9), and hydrogen is exported to user; Residual sour supporting plate (13) is positioned at acid tank (6) and goes out to be with between spacing and changed course assembly (16); Cover wall arranges arm aperture (14) and transparent window (15); Go out to be with spacing and changed course assembly (16) be positioned between acid tank (6) and rinse bath (20); Roller is stretched and is adopted " formula rolled into a ball by wet silk " movable sealing structure (17) with the dynamic seal of cover wall; Follow by overflow water sealing assembly (18); Rinse bath pressure roller (19) is positioned at rinse bath (20); Air-blowing is swept and drip washing assembly (21) to be arranged between rinse bath pressure roller (19) and groove between roller (22); Purifying groove (23) is after rinse bath (20); Roller between groove (22) is provided with at purifying groove (23) and rinse bath (20) adjacent top; Purifying groove pressure roller (24) is positioned at purifying groove (23); Gas sweep module (25) is positioned at before band carrying roller (26).
2. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: acid tank forward (FWD) pressure roller height cap (8), more than one piece acid tank height cap (10), acid tank go out to be with pressure roller height cap (12) to be all designed to high hat, from high cap upper end recover hydrogen, in high cap, lower end is acid mist condenser zone.
3. the recyclable hydrogen according to claim 1 and 2 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: peripherally in inverted U-shaped under high cap, high cap seat board (10.3) is sitting in acid tank (6) master plate and is communicated with on water eliminator, the dirty plate of condensation (10.4) and high cap wall, with being integrated, flow back to acid tank (6) in order to after acid mist condensation along under limit; The dirty plate of condensation (10.4) is long under high cap seat board (10.3), limits high cap by inclination during side force, in the U-shaped tank that water seal board (10.5) insertion acid tank (6) master plate and water eliminator are formed, carries out water seal to the acid mist through gap.
4. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: end-plate lower end plug-in water sealing assembly (4) is made up of condensation downflow system capping (4.1), upper plate (4.2), side plate (4.3), opening welding flange (4.4), acidproof rubber seal part (4.5), shrouding (4.6), the lower end of the shrouding (4.6) of sealed attachment is inserted in tank (2) water; Can by whole for port acid mist shutoff, condensation downflow system capping (4.1) has manhole plate function in addition.
5. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: utilize band steel to be immersed in rinse bath (20), plate (18.1) is sealed up and overflow water seal side plate (18.2) forms simple space at the overflow water of this submergence section liquid level (18.3) and overflow water sealing assembly (18), the top-down cascade in this space (18.4) pumped by water pump (18.5), the fused acid mist touched, makes this port overflow without acid mist.
6. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: spacing and changed course assembly (5) of forward (FWD), go out and stretch with the roller of modified roller that is spacing and changed course assembly (16), when through cover sidewall, adopt modified roller " wet silk group formula " movable sealing structure (17); Movable sealing structure (17) is by water filling pipe valve (17.1), upper semi-circle trim ring (17.2), resistance to aching and limp silk group (17.3), hydrolock rising pipe (17.4), lower half circle trim ring (17.5) for modified roller " wet silk group formula ", and acid-resisting rubber pad (17.6) is formed; Hydrolock rising pipe (17.4) irrigating gate height is lower than lower end, roller footpath, the silk group of supporting convenient width vertically, acid solution fused is like this unlikely to cross flow vertically, rising pipe water seal can prevent from leaking acid mist in the middle of resistance to aching and limp silk group, the pressure roller roller that acid tank forward (FWD) pressure roller (7), acid tank go out with pressure roller (11) is stretched, when through cap wall, adopt " acid tank pressure roller wet silk group formula " movable sealing structure (12.2), its dynamic sealing method is identical with modified roller " formula rolled into a ball by the silk that wets " movable sealing structure (17).
7. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: go out the upper limit axle (16.4) above with the modified roller in spacing and changed course assembly (16), arrange with the upper limit pedestal cap (16.1) above it and mounting bracket (16.5) and be connected into one, the power that band steel is upwards departed from is born by mounting bracket (16.5), protects acidproof cover body; The high-order modified roller (16.6) arranged makes in the liquid return groove of band steel face, upper limit pedestal cap (16.1) has manhole plate function in addition, the dirty coaming plate of condensation (16.2) guides in condensation acid solution instillation cover, water-sealed component (16.3) makes acid mist not leak, spacing and changed course assembly (5) of forward (FWD) with go out to be with spacing and assembly (16) structure that alters course is identical.
8. the recyclable hydrogen according to claim 1 not water-saving strip pickling line of pump drainage acid mist, is characterized in that: air-blowing is swept and drip washing assembly (21) is positioned at the top at rinse bath (20) rear portion; Gas sweep module (25) is positioned at the top at purifying groove (23) rear portion; Air-blowing is swept and drip washing assembly (21) gentle sweep module (25) is all arranged on mobile trolley; Air-blowing is swept and drip washing assembly (21) is made up of mobile trolley (21.1), second gas scavenging duct (21.2), second drip washing pipe (21.3), first drip washing pipe (21.4), first gas scavenging duct (21.5) and fan flow nozzle (21.6).
9. the using method of a recyclable hydrogen not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: band steel first enters tank (2) through forward (FWD) carrying roller (1) changed course, pass through at tank pressure roller (3) lower roll surface, plug-in water sealing assembly (4) region, upstream end shrouding lower end, under the state that band steel submerges in water, shrouding (4.6) is by the complete shutoff in space on its ingress's water surface, then steel upwards and changed course assembly (5) spacing through forward (FWD) is with, alter course through modified roller, enter acid tank (6) downwards, the lower roll surface with pressure roller (11) is gone out through acid tank forward (FWD) pressure roller (7) and acid tank, passage in transit region is had acid tank forward (FWD) pressure roller height cap (8) in vain, hydrogen series winding pipe (9), more than one piece acid tank height cap (10), acid tank goes out to be with pressure roller height cap (12), pass through in residual sour supporting plate (13) overhead, upwards through going out to be with spacing and changed course assembly (16), after modified roller changed course, enter overflow water sealing assembly (18) region, and enter rinse bath (20) downwards, through rinse bath pressure roller (19) lower roll surface, under the state that band steel submerges in water, the acid mist touched in its port fuses by cascade (18.4), shutoff acid mist, be with steel to be upward through air-blowing subsequently to sweep and drip washing assembly (21), through between groove, roller (22) changed course, enters purifying groove (23) downwards, from purifying groove pressure roller (24) lower roll surface through later, being upward through gas sweep module (25), finally by going out to be with carrying roller (26) to alter course, terminating pickling process.
10. the using method of the recyclable hydrogen according to claim 9 not water-saving strip pickling line of pump drainage acid mist, it is characterized in that: the sidewall locations that needs are given one a leg up when leader tape and pickling arranges arm aperture (14), to even refer to that the arm running-on of acidproof arm cover (14.2) connects with cover outer side seal by arm aperture flange (14.1), and transparent window (15) is set.
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| CN103866339B (en) * | 2014-02-21 | 2016-03-02 | 蔡满芝 | A kind of continous way environment-friendly type strip pickling line |
| CN105483733A (en) * | 2015-12-08 | 2016-04-13 | 无锡华工薄板有限公司 | Hydrogen removing system of acid washing tank for strip steel |
| CN106939426A (en) * | 2017-04-26 | 2017-07-11 | 中色科技股份有限公司 | A kind of alkali cleans the alkali cleaning soaking box of unit infuser device |
| JP7085372B2 (en) * | 2018-03-15 | 2022-06-16 | 株式会社Lixil | Hydrogen recovery method and hydrogen recovery system |
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| CN102260876A (en) * | 2011-07-20 | 2011-11-30 | 芜湖楚江合金铜材有限公司 | Wire rod on-line acid-washing equipment and wire rod on-line acid-washing method |
| CN203715730U (en) * | 2013-10-10 | 2014-07-16 | 蔡满芝 | Non-pumping-discharging acid mist water-saving type strip steel pickling line capable of recycling hydrogen gas |
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| JP2002275666A (en) * | 2001-03-19 | 2002-09-25 | Nisshin Steel Co Ltd | Descaling method for stainless steel strip and apparatus therefor |
| JP2011021240A (en) * | 2009-07-16 | 2011-02-03 | Mitsubishi-Hitachi Metals Machinery Inc | Method for removing scale on steel strip and equipment to be used for execution thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102260876A (en) * | 2011-07-20 | 2011-11-30 | 芜湖楚江合金铜材有限公司 | Wire rod on-line acid-washing equipment and wire rod on-line acid-washing method |
| CN203715730U (en) * | 2013-10-10 | 2014-07-16 | 蔡满芝 | Non-pumping-discharging acid mist water-saving type strip steel pickling line capable of recycling hydrogen gas |
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