CN102634811B - Sequential deslagging control device for soaking tanks and automatic deslagging soaking tank - Google Patents
Sequential deslagging control device for soaking tanks and automatic deslagging soaking tank Download PDFInfo
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- CN102634811B CN102634811B CN2012101252710A CN201210125271A CN102634811B CN 102634811 B CN102634811 B CN 102634811B CN 2012101252710 A CN2012101252710 A CN 2012101252710A CN 201210125271 A CN201210125271 A CN 201210125271A CN 102634811 B CN102634811 B CN 102634811B
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Abstract
The invention discloses a sequential deslagging control device for soaking tanks and an automatic deslagging soaking tank. The sequential deslagging control device for soaking tanks can quickly carry out sequential discharge on slurry deposited in a soaking tank at a cleaning section of a continuous annealing and galvanization unit according to the actual production, and through the sequential opening and closing of an automatic deslagging valve, a situation that slurry is accumulated at the bottom of a sinking roller of the soaking tank is effectively prevented, thereby avoiding the influences of the slurry on the surface qualities of strip steel and the sinking roller; through a liquid level difference between two liquid level switches, the replacement ratio of new and old chemical solvents in the soaking tank is accelerated, and the quantity of a fresh chemical solvent in the soaking tank is ensured as large as possible, thereby facilitating a situation that the chemical solvent carries out better chemical and physical reactions with the strip steel, and improving the surface cleaning effect of the strip steel; and the timely discharge of the slurry ensures the cleanliness of the chemical solvents in the soaking tank, and the slurry does not reversely pollute the chemical solvents in the soaking tank, thereby enhancing the cleanliness of the chemical solvents, and improving the cleaning effect of the chemical solvents.
Description
Technical field
The present invention relates to a kind of band steel treatment facility, more particularly, relate to a kind of for even moving back and the soaking compartment sequential slag discharge control device of washing section of galvanized set and the soaking compartment that possesses the automatic sludge discharge function.
Background technology
Connect move back with zinc-plated unit in, cleaning section is carried out clean to the band steel.Cleaning section comprises the hot alkali dipping groove, scrubs groove, electrolysis soaking compartment, rinse tank etc., and the cell body with soaking function mainly refers to hot alkali dipping groove and electrolysis soaking compartment.The major function of soaking compartment is used chemical solvents (containing NaOH and promoting agent etc.) and belt steel surface residual thing generation chemistry and physical reaction exactly, reaches the purpose of cleaning belt steel surface.The chemical reaction be hydrolyzed occurs with animal grease, the mineral oil of belt steel surface in the NaOH in chemical solvents under heating (60-80 ℃) condition, generates sodium stearate and glycerine, dissolves and enters basic solution, forms water-soluble soap salt; The absorption physical reaction occurs in the tensio-active agent in chemical solvents and the animal grease of belt steel surface, mineral oil, chemical active agent as hydrophobic group towards the band steel matrix, chemical active agent wrap steel sea surface oil slick forms hydrophilic group towards solution, impel the oil film of belt steel surface and the interfacial tension lowering between solution, under the effect of the factors such as hydrokinetics, hydrophobic group impels the belt steel surface rupture of oil film to form hydrophilic group disengaging belt steel surface, and dispersion and emulsion forms emulsion in solution.Soaking compartment makes the grease of belt steel surface and foreign material become loose to come off, and the foreign material of belt steel surface are cleaned, and scrubs and prepares for mechanical type simultaneously.
In the band steel carries out the immersion treatment process, chemistry and physical reaction by chemical solvents and the residual thing of belt steel surface, just can form a large amount of foreign material such as saponification salt, hydrophilic group and iron filings, these foreign material density are greater than chemical solvents, along with soaking compartment moves for a long time, these foreign material just can be stacked into the bottom of soaking compartment sinking roller, form very thick slag slurry layer, when band steel pile warp sinking roller is starched layer through slag, slag slurry layer just can be extruded between band steel and sinking roller surface, and the adamant in the slag slurry just can destroy band steel and sinking roller surface quality; Simultaneously slag slurry layer also can the Pollution Chemistry solvent, reduces the degree of cleaning of chemical solvents.The problem of prior art is: the bottom of soaking compartment sinking roller does not arrange the deslagging sizing device, and slag only has by each periodical repair shutdown after starching the bottom that is deposited on the soaking compartment sinking roller, and the slag of the bottom of soaking compartment sinking roller is starched to disposing; Slag slurry is piled up very thick in the bottom of soaking compartment sinking roller, in the slag slurry, adamant just can be mingled with and enter between band steel and sinking roller, and adamant can cause to wipe to band steel and sinking roller surface and scratch, causes and affect strip surface quality by impression; The slag slurry is piled up in the bottom of soaking compartment sinking roller, and the slag slurry also can pollute the chemical solvents entered in soaking compartment, has reduced chemical solvents the band tempering is learned and the physical cleaning effect, causes the reduction of soaking effect with steel, affects the cleaning quality of belt steel surface.
Therefore, design a kind of can the Automatic clearance soaking compartment in the device of slag slurry be very necessary.
Summary of the invention
For the deficiencies in the prior art, one of the purpose of this utility model is to solve in above-mentioned prior art the one or more problems that exist.
The object of the present invention is to provide a set of reliable and practical soaking compartment sequential slag discharge control device and possess the soaking compartment of automatic sludge discharge function, the slag slurry produced for soaking compartment by newly-increased soaking compartment sequential slag discharge control device provides a kind of means of automatic-discharging, so that the technology pattern of whole soaking compartment and equipment configuration more can meet the actual production demand.
To achieve these goals, an aspect of of the present present invention provides a kind of soaking compartment sequential slag discharge control device, and described control device comprises scum pipe, deslagging self-acting valve and control unit, wherein, scum pipe is arranged on the bottom of soaking compartment to discharge the slag slurry, and the deslagging self-acting valve is arranged on scum pipe; Control unit comprises time schedule controller, the first liquid level switch and the second liquid level switch, time schedule controller is connected with the deslagging self-acting valve by joint current, the first liquid level switch is arranged on the sidewall inner-wall surface of soaking compartment and the first liquid level switch is connected with time schedule controller by the first control cables, the second liquid level switch be arranged on the sidewall inner-wall surface of soaking compartment and the second liquid level switch the arrange height of height lower than the first liquid level switch be set, the second liquid level switch is connected with time schedule controller by the second control cables; After the liquid level in soaking compartment is got in the first liquid level switch knowledge, signal is transferred to time schedule controller by the first control cables, time schedule controller is controlled the deslagging self-acting valve by joint current and is opened; After the liquid level in soaking compartment is got in the second liquid level switch knowledge, signal is transferred to time schedule controller by the second control cables, time schedule controller controls the deslagging self-acting valve by joint current and cuts out.
According to an embodiment of soaking compartment sequential slag discharge control device of the present invention, the difference of altitude between the first liquid level switch and the second liquid level switch is 100-200mm.
Another aspect of the present invention provides a kind of automatic sludge discharge soaking compartment, and described automatic sludge discharge soaking compartment comprises above-mentioned soaking compartment sequential slag discharge control device.
The embodiment according to automatic sludge discharge soaking compartment of the present invention, described automatic sludge discharge soaking compartment also comprises the feed flow cycling element, described feed flow cycling element comprises circulation tank, electric-motor pump, transfer lime, spray beam, upflow tube and return line, and wherein, circulation tank is for storing chemical solvents; Electric-motor pump is for extracting the chemical solvents of circulation tank; One end of transfer lime is connected with electric-motor pump, and the other end of transfer lime is connected with spray beam; Spray beam is arranged on the top of soaking compartment in soaking compartment, to spray chemical solvents; What upflow tube was arranged on the top of soaking compartment and upflow tube arranges the arrange height of height higher than the first liquid level switch, and an end of upflow tube is connected with soaking compartment, and the other end of upflow tube is connected with circulation tank; What return line was arranged on the bottom of soaking compartment and return line arranges the arrange height of height higher than scum pipe, and an end of return line is connected with soaking compartment, and the other end of return line is connected with circulation tank, and the flow of return line is less than the flow of transfer lime.
According to an embodiment of automatic sludge discharge soaking compartment of the present invention, described circulation tank has the function of automatic removing slag slurry, and an end of described scum pipe is connected with soaking compartment, and the other end of scum pipe is connected with circulation tank.
Soaking compartment sequential slag discharge control device of the present invention and automatic sludge discharge soaking compartment, for the slag of soaking compartment deposition is provided by a kind of discharge means that provide, can stop the slag slurry to the quality influence with steel and sinking roller surface, reduce the degree of cleaning impact of slag slurry on chemical solvents, strengthened the immersion effect of chemical solvents, promoted and connected the cleaning performance moved back with the washing section of galvanized set soaking compartment, improved to connect and moved back the unit product quality level.The present invention for the company that produces high-grade steel plate move back with washing section of galvanized set significant, can effectively avoid the wiping caused in the cleaning section soaking compartment with steel to scratch and impression, significantly improve the surface quality with steel.
The accompanying drawing explanation
Fig. 1 is the structural representation of soaking compartment sequential slag discharge control device and the automatic sludge discharge soaking compartment of exemplary embodiment of the present.
Description of reference numerals:
1-band steel, 2-deflector roll, 3-soaking compartment, 4-sinking roller, 5-chemical solvents, 6-electric-motor pump, 7-transfer lime, 8-spray beam, 9-upflow tube, 10-return line, 11-slag slurry, 12-deslagging self-acting valve, 13-scum pipe, 14-circulation tank, 15-joint current, 16-the first liquid level switch, 17-the first control cables, 18-the second liquid level switch, 19-the second control cables, 20-time schedule controller;
Wherein, single arrow means the traffic direction with steel 1; Double-headed arrow means the flow direction of chemical solvents 5; Three arrows mean the emission direction of slag slurry 11.
Embodiment
Hereinafter, in connection with accompanying drawing, exemplary embodiment of the present invention is described in further detail.
Fig. 1 is the structural representation of soaking compartment sequential slag discharge control device and the automatic sludge discharge soaking compartment of exemplary embodiment of the present.As shown in Figure 1, the soaking compartment sequential slag discharge control device of the present embodiment comprises scum pipe 13, deslagging self-acting valve 12 and control unit.Wherein, scum pipe 13 is arranged on the bottom of soaking compartment 3 to get rid of slag slurry 11, and deslagging self-acting valve 12 is arranged on scum pipe 13 to control the discharge of slag slurry 11.Control unit is for controlling the opening and closing of deslagging self-acting valve 12, particularly, control unit comprises time schedule controller 20, the first liquid level switch 16 and the second liquid level switch 18, time schedule controller 20 is connected with deslagging self-acting valve 12 by joint current 15, the first liquid level switch 16 is arranged on the sidewall inner-wall surface of soaking compartment 3, and the first liquid level switch 16 is connected with time schedule controller 20 by the first control cables 17; The second liquid level switch 18 be arranged on the sidewall inner-wall surface of soaking compartment 3 and the second liquid level switch 18 the arrange height of height lower than the first liquid level switch 16 be set, the second liquid level switch is connected with time schedule controller 20 by the second control cables 19.In fact, control unit is to control in real time the opening and closing of deslagging self-acting valve 12 by the first liquid level switch 16 and the second liquid level switch 18.The liquid level of the chemical solvents 5 in soaking compartment 3 arrives when height of arranging of the first liquid level switch 16, after the liquid level in soaking compartment 3 is got in the first liquid level switch 16 knowledges, signal is transferred to time schedule controller 20 by the first control cables 17, time schedule controller 20 sends instruction and controls 12 unlatchings of deslagging self-acting valve by joint current 15, and then carries out the discharge of slag slurry 11 by scum pipe 13; The liquid level of the chemical solvents 5 in soaking compartment 3 reduce arrive the second liquid level switch 18 height is set the time, after the liquid level in soaking compartment 3 is got in the second liquid level switch 18 knowledges, signal is transferred to time schedule controller 20 by the second control cables 19, time schedule controller 20 sends instruction and cuts out by joint current 15 control deslagging self-acting valves 12, and then stop the discharge of slag slurry 11, loop thus the sequential control of slag slurry 11 discharges.
Wherein, between the first liquid level switch 16 and the second liquid level switch 18, difference of altitude must be arranged, the first liquid level switch 16 arrange the height higher than the second liquid level switch 18 arranging the height, the setting of difference of altitude must meet the cleaning requirement of soaking compartment 3, preferably, the difference of altitude between the first liquid level switch 16 and the second liquid level switch 18 is 100-200mm.Owing between the first liquid level switch 16 and the second liquid level switch 18, difference of altitude being arranged, the height of liquid level is in the conversion back and forth between height that arranges of the first liquid level switch 16 and the second liquid level switch 18, can effectively accelerate the replacing efficiency of new and old chemical solvents 5, promote the degree of cleaning of chemical solvents 5 in soaking compartment 3, improve with steel 1 the immersion effect in soaking compartment 3.
The automatic sludge discharge soaking compartment of the present embodiment comprises the soaking compartment sequential slag discharge control device of said structure, by this soaking compartment sequential slag discharge control device, realizes the automatic sludge discharge function.
Particularly, as shown in Figure 1, the automatic sludge discharge soaking compartment of the present embodiment also comprises the feed flow cycling element, and this feed flow cycling element comprises circulation tank 14, electric-motor pump 6, transfer lime 7, spray beam 8, upflow tube 9 and return line 10.Wherein, circulation tank 14 is for storing chemical solvents 5, the chemical solvents 5 of electric-motor pump 6 for extracting circulation tank 14; One end of transfer lime 7 is connected with electric-motor pump 6, and the other end of transfer lime 7 is connected with spray beam 8, and the chemical solvents 5 that transfer lime 7 extracts electric-motor pump 6 is delivered to spray beam 8; Spray beam 8 is arranged on the top of soaking compartment 3 to spray chemical solvents 5 in soaking compartment 3; Upflow tube 9 is arranged on the top of soaking compartment 3 and discharges with the chemical solvents 5 by overfill, the height that arranges of upflow tube 9 must be higher than the height that arranges of the first liquid level switch 16, one end of upflow tube 9 is connected with soaking compartment 3, the other end of upflow tube 9 is connected with circulation tank 14, and upflow tube 9 can directly be back to circulation tank 14 by the chemical solvents of overfill 5; Return line 10 is arranged on the bottom of soaking compartment 3 and realizes the renewal of chemical solvents 5 so that a part of chemical solvents 5 is refluxed, the height that arranges of return line 10 must be higher than the height that arranges of scum pipe 13, one end of return line 10 is connected with soaking compartment 3, the other end of return line 10 is connected with circulation tank 14, return line 10 can directly be back to circulation tank 14 by a part of chemical solvents 5, but must guarantee that the flow of return line 10 is less than the flow of transfer lime 7 to guarantee the amount of the chemical solvents 5 in soaking compartment 3.
In addition, in order to realize the timely processing of slag slurry 11, preferably, circulation tank 14 has the function of automatic removing slag slurry 11, one end of scum pipe 13 is connected with soaking compartment 3, the other end of scum pipe 13 is connected with circulation tank 14, can slag slurry 11 be disposed to the processing that circulation tank 14 directly carries out slag slurry 11 by scum pipe 13.
During enforcement, enter into soaking compartment 3 with steel 1 by the deflector roll 2 that are arranged on soaking compartment 3 tops, soaking compartment 3 fills with chemical solvents 5, and sinking roller 4 is positioned at the bottom of soaking compartment 3, with steel 1, leaves soaking compartment 3 by a plurality of deflector roll 2 and sinking roller 4 and complete the cleaning with steel 1 in soaking compartment 3 after successively.Chemical solvents 5 is extracted out from circulation tank 14 by electric-motor pump 6 and is carried via transfer lime 7, then chemical solvents 5 is ejected in soaking compartment 3 by spray beam 8, chemistry and physical reaction occur and are cleaned in the band steel 1 that enters into the chemical solvents 5 of soaking compartment 3 and enter into soaking compartment 3, clean the slag be comprised of materials such as saponification salt, hydrophilic group and iron filings produced and starch 11 bottoms that are deposited on sinking roller 4.Just can be by upflow tube 9 overflows to circulation tank 14 while entering into chemical solvents 5 overfill of soaking compartment 3,5 of a part of chemical solventss in soaking compartment 3 are back in circulation tank 14 to realize the renewal of chemical solvents 5 by return line 10.When the slag slurry 11 of the sinking roller 4 bottoms depositions of soaking compartment 3 increase gradually to the liquid level of the chemical solvents 5 in soaking compartment 3 rise to the first liquid level switch 16 height is set the time, after liquid level is got in the first liquid level switch 16 knowledges, signal is transferred to time schedule controller 20 by the first control cables 17, time schedule controller 20 sends instruction and controls 12 unlatchings of deslagging self-acting valve by joint current 15, and then by scum pipe 13, slag slurry 11 is disposed to the cleaning that circulation tank 14 carries out slag slurry 11, when slag slurry 11 be discharged from gradually soaking compartment 3 until the liquid level of the chemical solvents 5 in soaking compartment 3 drop to the second liquid level switch 18 height is set the time, after liquid level is got in the second liquid level switch 18 knowledges, signal is transferred to time schedule controller 20 by the second control cables 19, time schedule controller 20 sends instruction and cuts out by joint current 15 control deslagging self-acting valves 12, and then stop the discharge of slag slurry 11, the liquid level of the chemical solvents 5 in soaking compartment 3 is in the conversion back and forth between height that arranges of the first liquid level switch 16 and the second liquid level switch 18 thus, control by time schedule controller 20 the sequential discharge that deslagging self-acting valve 12 carries out slag slurry 11.
In sum, soaking compartment sequential slag discharge control device of the present invention and automatic sludge discharge soaking compartment, can carry out the sequential discharge to connecting the slag slurry moved back with washing section of galvanized set soaking compartment deposition rapidly according to production reality, sequential opening and closing by the deslagging self-acting valve prevent that the slag slurry is in the accumulation of the bottom of soaking compartment sinking roller effectively, avoid the slag slurry on the impact with steel and sinking roller surface quality; By the liquid level difference between two liquid level switches, accelerated the replacing ratio of new and old chemical solvents in the soaking compartment, the amount of fresh chemical solvents in the soaking compartment of having tried one's best large assurance, thus be conducive to chemical solvents better with band steel generation chemistry and physical reaction, improve the cleaning performance of belt steel surface; The timely discharge of slag slurry has guaranteed the degree of cleaning of chemical solvents in the soaking compartment, the chemical solvents of slag slurry in can the contamination soaking compartment, thus promoted the degree of cleaning of chemical solvents, improved the cleaning performance of chemical solvents.
Although the above illustrates and has described soaking compartment sequential slag discharge control device of the present invention and automatic sludge discharge soaking compartment in conjunction with the embodiments, but what those skilled in the art will appreciate that is, in the situation that do not break away from the spirit and scope of the present invention that claim limits, can make the various changes on form and details here.
Claims (4)
1. a soaking compartment sequential slag discharge control device, is characterized in that, described control device comprises scum pipe, deslagging self-acting valve and control unit, wherein,
Scum pipe is arranged on the bottom of soaking compartment to discharge the slag slurry, and the deslagging self-acting valve is arranged on scum pipe;
Control unit comprises time schedule controller, the first liquid level switch and the second liquid level switch, time schedule controller is connected with the deslagging self-acting valve by joint current, the first liquid level switch is arranged on the sidewall inner-wall surface of soaking compartment and the first liquid level switch is connected with time schedule controller by the first control cables, the second liquid level switch be arranged on the sidewall inner-wall surface of soaking compartment and the second liquid level switch the arranging height of height lower than the first liquid level switch be set, difference of altitude between the first liquid level switch and the second liquid level switch is 100-200mm, the second liquid level switch is connected with time schedule controller by the second control cables,
After the liquid level in soaking compartment is got in the first liquid level switch knowledge, signal is transferred to time schedule controller by the first control cables, time schedule controller is controlled the deslagging self-acting valve by joint current and is opened;
After the liquid level in soaking compartment is got in the second liquid level switch knowledge, signal is transferred to time schedule controller by the second control cables, time schedule controller controls the deslagging self-acting valve by joint current and cuts out.
2. an automatic sludge discharge soaking compartment, is characterized in that, described automatic sludge discharge soaking compartment comprises soaking compartment sequential slag discharge control device as claimed in claim 1.
3. automatic sludge discharge soaking compartment according to claim 2, is characterized in that, described automatic sludge discharge soaking compartment also comprises the feed flow cycling element, and described feed flow cycling element comprises circulation tank, electric-motor pump, transfer lime, spray beam, upflow tube and return line, wherein,
Circulation tank is for storing chemical solvents;
Electric-motor pump is for extracting the chemical solvents of circulation tank;
One end of transfer lime is connected with electric-motor pump, and the other end of transfer lime is connected with spray beam;
Spray beam is arranged on the top of soaking compartment in soaking compartment, to spray chemical solvents;
What upflow tube was arranged on the top of soaking compartment and upflow tube arranges the arrange height of height higher than the first liquid level switch, and an end of upflow tube is connected with soaking compartment, and the other end of upflow tube is connected with circulation tank;
What return line was arranged on the bottom of soaking compartment and return line arranges the arrange height of height higher than scum pipe, and an end of return line is connected with soaking compartment, and the other end of return line is connected with circulation tank, and the flow of return line is less than the flow of transfer lime.
4. automatic sludge discharge soaking compartment according to claim 3, is characterized in that, described circulation tank has the function of automatic removing slag slurry, and an end of described scum pipe is connected with soaking compartment, and the other end of scum pipe is connected with circulation tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101252710A CN102634811B (en) | 2012-04-25 | 2012-04-25 | Sequential deslagging control device for soaking tanks and automatic deslagging soaking tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101252710A CN102634811B (en) | 2012-04-25 | 2012-04-25 | Sequential deslagging control device for soaking tanks and automatic deslagging soaking tank |
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| CN102634811A CN102634811A (en) | 2012-08-15 |
| CN102634811B true CN102634811B (en) | 2013-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106140753B (en) * | 2015-04-16 | 2018-05-22 | 宝山钢铁股份有限公司 | For the hardening slot cleaning of the improvement groove body scaling fouling of continuous annealing production line |
| CN106319549B (en) * | 2015-06-19 | 2018-11-06 | 宝山钢铁股份有限公司 | A kind of alkali wash water is in wire casing |
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| US4344308A (en) * | 1979-07-25 | 1982-08-17 | Nihon Parkerizing Co., Ltd. | Method for cold rolling and cleaning steel plates |
| JP3257186B2 (en) * | 1993-10-12 | 2002-02-18 | 富士電機株式会社 | Insulated gate thyristor |
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