CN102634811A - 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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- CN102634811A CN102634811A CN2012101252710A CN201210125271A CN102634811A CN 102634811 A CN102634811 A CN 102634811A CN 2012101252710 A CN2012101252710 A CN 2012101252710A CN 201210125271 A CN201210125271 A CN 201210125271A CN 102634811 A CN102634811 A CN 102634811A
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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 be used for connecting move back and zinc-plated unit cleans the soaking compartment sequential deslagging gear of section and the soaking compartment that possesses the automatic sludge discharge function.
Background technology
Connect move back with zinc-plated unit in, clean section the band steel carried out clean.Clean that section comprises the hot alkali dipping groove, scrubs groove, electrolysis soaking compartment, rinse tank etc., the cell body with soaking function mainly refers to hot alkali dipping groove and electrolysis soaking compartment.The major function of soaking compartment just is to use chemical solvents (containing NaOH and promoting agent etc.) and belt steel surface residue generation chemistry and physical reaction, reaches the purpose of cleaning belt steel surface.NaOH in the chemical solvents under heating (60-80 ℃) condition with the animal oil and fat of belt steel surface, the chemical reaction of MO generation hydrolysis, generate StNa and glycerine, dissolving gets into basic soln, forms water-soluble soap salt; The absorption physical reaction takes place in the tensio-active agent in the chemical solvents and the animal oil and fat of belt steel surface, MO; 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, impels the oil film of belt steel surface and the interfacial tension lowering between solution, under effect of 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 grease and the foreign material of belt steel surface become loose to come off, and the foreign material of belt steel surface are cleaned, and scrubs for mechanical type simultaneously and prepares.
Carry out in the immersion treatment process at the band steel; Through the chemistry and the physical reaction of chemical solvents and belt steel surface residue, 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 passes slag slurry layer; Slag slurry layer just can be extruded between band steel and the sinking roller surface, and the adamant in the slag slurry just can destroy band steel and sinking roller surface quality; Slag slurry layer also can pollute chemical solvents simultaneously, reduces the degree of cleaning of chemical solvents.Prior art problems is: the bottom of soaking compartment sinking roller is not provided with the deslagging sizing device, and the slag slurry is deposited on to have only through each periodical repair behind the bottom of soaking compartment sinking roller and shuts down, and the sink slag of bottom of roller of soaking compartment is starched to disposing; Slag slurry is piled up very thick in the bottom of soaking compartment sinking roller, adamant just can be mingled with and enter between band steel and the sinking roller in the slag slurry, and adamant can cause to wipe and scratch, causes and affect strip surface quality by impression band steel and sinking roller surface; The slag slurry is piled up in the bottom of soaking compartment sinking roller, and slag is starched and also can be polluted the chemical solvents that gets in the soaking compartment, has reduced chemical solvents the band tempering is learned and the physics cleaning performance, causes the reduction of band steel immersion effect, influences the cleaning quality of belt steel surface.
Therefore, a kind of device that can clear up slag slurry in the soaking compartment automatically of design is very necessary.
Summary of the invention
To the deficiency that exists in the prior art, one of the object of the invention is to solve the one or more problems that exist in the above-mentioned prior art.
The object of the present invention is to provide a reliable and practical soaking compartment sequential deslagging gear of cover and possess the soaking compartment of automatic sludge discharge function; Through newly-increased soaking compartment sequential deslagging gear is that the slag that soaking compartment produces is starched the means that a kind of automatic discharging is provided, so that the technology pattern of whole soaking compartment and equipment configuration more can be satisfied the actual production demand.
To achieve these goals; One side of the present invention provides a kind of soaking compartment sequential deslagging gear, and said gear 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 the scum pipe; Control unit comprises time schedule controller, first liquid level switch and second liquid level switch; Time schedule controller is connected with the deslagging self-acting valve through joint current; First liquid level switch is arranged on the sidewall inner-wall surface of soaking compartment and first liquid level switch is connected with time schedule controller through first umbilical cable; Second liquid level switch be arranged on the sidewall inner-wall surface of soaking compartment and second liquid level switch the height that is provided with that highly is lower than first liquid level switch is set, second liquid level switch is connected with time schedule controller through second umbilical cable; After the liquid level in the soaking compartment is got in the knowledge of first liquid level switch signal is transferred to time schedule controller through first umbilical cable, time schedule controller is opened through joint current control deslagging self-acting valve; After the liquid level in the soaking compartment is got in the knowledge of second liquid level switch signal is transferred to time schedule controller through second umbilical cable, time schedule controller cuts out through joint current control deslagging self-acting valve.
According to an embodiment of soaking compartment sequential deslagging gear of the present invention, the difference of altitude between first liquid level switch and second liquid level switch is 100-200mm.
Another aspect of the present invention provides a kind of automatic sludge discharge soaking compartment, and said automatic sludge discharge soaking compartment comprises above-mentioned soaking compartment sequential deslagging gear.
An embodiment according to soaking compartment sequential deslagging gear of the present invention; Said automatic sludge discharge soaking compartment also comprises the feed flow cycling element; Said feed flow cycling element comprises circulation tank, electric-motor pump, transfer lime, spray beam, upflow tube and return line; Wherein, circulation tank is used to store chemical solvents; Electric-motor pump is used 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; Top and being provided with of upflow tube that upflow tube is arranged on soaking compartment highly are higher than being provided with highly of 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; Bottom and being provided with of return line that return line is arranged on soaking compartment highly are higher than being provided with highly of 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 soaking compartment sequential deslagging gear of the present invention, said circulation tank has the function of automatic removing slag slurry, and an end of said scum pipe is connected with soaking compartment, and the other end of scum pipe is connected with circulation tank.
Soaking compartment sequential deslagging gear of the present invention and automatic sludge discharge soaking compartment; For the sedimentary slag slurry of soaking compartment provides a kind of discharging means; Can stop the slag slurry to the quality influence of band steel, reduce of the degree of cleaning influence of slag slurry, strengthen the immersion effect of chemical solvents chemical solvents with sinking roller surface; Promoted to connect and moved back the cleaning performance that cleans the section soaking compartment with zinc-plated unit, improved to connect and moved back the unit product quality level.The present invention moves back with significant zinc-plated unit cleans section for the company that produces high-grade steel plate, can effectively avoid scratching and impression with the wiping that steel causes in cleaning the section soaking compartment, significantly improves the surface quality of band steel.
Description of drawings
Fig. 1 is the soaking compartment sequential deslagging gear of exemplary embodiment of the present and the structural representation of automatic sludge discharge soaking compartment.
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-first liquid level switch, 17-first umbilical cable, 18-second liquid level switch, 19-second umbilical cable, 20-time schedule controller;
Wherein, single arrow is represented the traffic direction with steel 1; Double-headed arrow is represented the flow direction of chemical solvents 5; Three arrows are represented the emission direction of slag slurry 11.
Embodiment
Hereinafter, will combine accompanying drawing that exemplary embodiment of the present invention is described in further detail.
Fig. 1 is the soaking compartment sequential deslagging gear of exemplary embodiment of the present and the structural representation of automatic sludge discharge soaking compartment.As shown in Figure 1, the soaking compartment sequential deslagging gear of 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 the scum pipe 13 to control the discharging of slag slurry 11.Control unit is used to control the opening and closing of deslagging self-acting valve 12; Particularly; Control unit comprises time schedule controller 20, first liquid level switch 16 and second liquid level switch 18; Time schedule controller 20 is connected with deslagging self-acting valve 12 through joint current 15, and first liquid level switch 16 is arranged on the sidewall inner-wall surface of soaking compartment 3, and first liquid level switch 16 is connected with time schedule controller 20 through first umbilical cable 17; Second liquid level switch 18 be arranged on the sidewall inner-wall surface of soaking compartment 3 and second liquid level switch 18 the height that is provided with that highly is lower than first liquid level switch 16 is set, second liquid level switch is connected with time schedule controller 20 through second umbilical cable 19.In fact, control unit is through first liquid level switch 16 and the opening and closing of control deslagging self-acting valve 12 in real time of second liquid level switch 18.When the liquid level of the chemical solvents in the soaking compartment 35 arrive first liquid level switch 16 height is set the time; After the liquid level in the soaking compartment 3 is got in 16 knowledges of first liquid level switch signal is transferred to time schedule controller 20 through first umbilical cable 17; Time schedule controller 20 sends instruction and opens through joint current 15 control deslagging self-acting valves 12, and then carries out the discharging of slag slurry 11 through scum pipe 13; When the liquid level of the chemical solvents in the soaking compartment 35 reduce arrive second liquid level switch 18 height is set the time; After the liquid level in the soaking compartment 3 is got in 18 knowledges of second liquid level switch signal is transferred to time schedule controller 20 through second umbilical cable 19; Time schedule controller 20 sends instruction and cuts out through joint current 15 control deslagging self-acting valves 12; And then stopping the discharging of slag slurry 11, the sequential control of slag slurry 11 dischargings is carried out in circulation thus.
Wherein, Between first liquid level switch 16 and second liquid level switch 18 difference of altitude must be arranged; Being provided with of first liquid level switch 16 highly is higher than being provided with highly of second liquid level switch 18; The setting of difference of altitude must be satisfied the cleaning requirement of soaking compartment 3, and preferably, the difference of altitude between first liquid level switch 16 and second liquid level switch 18 is 100-200mm.Owing between first liquid level switch 16 and second liquid level switch 18 difference of altitude is arranged; Then the height of liquid level is in the conversion back and forth between the height that is provided with of first liquid level switch 16 and second liquid level switch 18; Can effectively accelerate the replacing efficient of new and old chemical solvents 5; Promote the degree of cleaning of chemical solvents 5 in the soaking compartment 3, improve the immersion effect of band steel 1 in soaking compartment 3.
The automatic sludge discharge soaking compartment of present embodiment then comprises the soaking compartment sequential deslagging gear of said structure, realizes the automatic sludge discharge function through this soaking compartment sequential deslagging gear.
Particularly, as shown in Figure 1, the automatic sludge discharge soaking compartment of 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 used to store chemical solvents 5, and electric-motor pump 6 is used for extracting the chemical solvents 5 of 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 transfer lime 7 is delivered to spray beam 8 with the chemical solvents 5 that electric-motor pump 6 extracts; Spray beam 8 is arranged on the top of soaking compartment 3 in soaking compartment 3, to spray chemical solvents 5; Upflow tube 9 is arranged on the top of soaking compartment 3 so that the chemical solvents 5 of overfill is discharged; Being provided with of upflow tube 9 highly must be higher than being provided with highly of 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 with the chemical solvents 5 of overfill; Return line 10 is arranged on the bottom of soaking compartment 3 so that a part of chemical solvents 5 is refluxed and the renewal of realization chemical solvents 5; Being provided with of return line 10 highly must be higher than being provided with highly 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, and return line 10 can directly be back to circulation tank 14 with a part of chemical solvents 5, but the flow that must guarantee return line 10 less than the flow of transfer lime 7 to guarantee the amount of the chemical solvents 5 in the 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, and an 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 through scum pipe 13.
During enforcement; Band steel 1 enters into soaking compartment 3 through the deflector roll 2 that are arranged on soaking compartment 3 tops; Soaking compartment 3 fills with chemical solvents 5, and the roller 4 that sinks is positioned at the bottom of soaking compartment 3, and band steel 1 leaves soaking compartment 3 after accomplishing the cleaning of being with steel 1 through a plurality of deflector roll 2 with sinking roller 4 and in soaking compartment 3 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 the soaking compartment 3 through spray beam 8; Chemistry takes place with the band steel that enters into soaking compartment 31 and cleans with physical reaction in the chemical solvents 5 that enters into soaking compartment 3, clean the slag of forming by materials such as saponification salt, hydrophilic group and iron filings that is produced starch 11 be deposited on the roller 4 that sinks the bottom.Just can be when entering into chemical solvents 5 overfill of soaking compartment 3 through upflow tube 9 overflows to circulation tank 14,5 of a part of chemical solventss in the soaking compartment 3 are back in the circulation tank 14 to realize the renewal of chemical solvents 5 through return line 10.The liquid level that increases the chemical solvents 5 to soaking compartment 3 gradually when the slag slurry 11 of sinking roller 4 bottom deposits of soaking compartment 3 rise to first liquid level switch 16 height is set the time; After liquid level is got in 16 knowledges of first liquid level switch signal is transferred to time schedule controller 20 through first umbilical cable 17; Time schedule controller 20 sends instruction and opens through joint current 15 control deslagging self-acting valves 12, and then through scum pipe 13 slag slurry 11 is disposed to the cleaning that circulation tank 14 carries out slag slurry 11; The liquid level that is discharged from the chemical solvents 5 of soaking compartment 3 in soaking compartment 3 gradually when slag slurry 11 drop to second liquid level switch 18 height is set the time; After liquid level is got in 18 knowledges of second liquid level switch signal is transferred to time schedule controller 20 through second umbilical cable 19; Time schedule controller 20 sends instruction and cuts out through joint current 15 control deslagging self-acting valves 12; And then stop the discharging of slag slurry 11; The liquid level of the chemical solvents 5 in the soaking compartment 3 is controlled the sequential discharging that deslagging self-acting valve 12 carries out slag slurry 11 in the conversion back and forth between the height that is provided with of first liquid level switch 16 and second liquid level switch 18 through time schedule controller 20 thus.
In sum; Soaking compartment sequential deslagging gear of the present invention and automatic sludge discharge soaking compartment; Can carry out the sequential discharging to connecting to move back apace according to production reality with the sedimentary slag slurry of zinc-plated unit cleaning section soaking compartment; Sequential opening and closing through the deslagging self-acting valve prevent the bottom accumulation of slag slurry at soaking compartment sinking roller effectively, avoid the slag slurry to being with the influence of steel and sinking roller surface quality; Through 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 big assurance, thus help chemical solvents better with band steel generation chemistry and physical reaction, improve the cleaning performance of belt steel surface; The timely discharging 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 top combination embodiment illustrates and has described soaking compartment sequential deslagging gear of the present invention and automatic sludge discharge soaking compartment; But what those skilled in the art will appreciate that is; Under the situation of the spirit and scope of the present invention that do not break away from the claim qualification, can make the various changes on form and the details here.
Claims (5)
1. a soaking compartment sequential deslagging gear is characterized in that said gear 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 the scum pipe;
Control unit comprises time schedule controller, first liquid level switch and second liquid level switch; Time schedule controller is connected with the deslagging self-acting valve through joint current; First liquid level switch is arranged on the sidewall inner-wall surface of soaking compartment and first liquid level switch is connected with time schedule controller through first umbilical cable; Second liquid level switch be arranged on the sidewall inner-wall surface of soaking compartment and second liquid level switch the height that is provided with that highly is lower than first liquid level switch is set, second liquid level switch is connected with time schedule controller through second umbilical cable;
After the liquid level in the soaking compartment is got in the knowledge of first liquid level switch signal is transferred to time schedule controller through first umbilical cable, time schedule controller is opened through joint current control deslagging self-acting valve;
After the liquid level in the soaking compartment is got in the knowledge of second liquid level switch signal is transferred to time schedule controller through second umbilical cable, time schedule controller cuts out through joint current control deslagging self-acting valve.
2. soaking compartment sequential deslagging gear according to claim 1 is characterized in that the difference of altitude between first liquid level switch and second liquid level switch is 100-200mm.
3. an automatic sludge discharge soaking compartment is characterized in that, said automatic sludge discharge soaking compartment comprises soaking compartment sequential deslagging gear according to claim 1 or claim 2.
4. soaking compartment sequential deslagging gear according to claim 3; It is characterized in that said automatic sludge discharge soaking compartment also comprises the feed flow cycling element, said feed flow cycling element comprises circulation tank, electric-motor pump, transfer lime, spray beam, upflow tube and return line; Wherein
Circulation tank is used to store chemical solvents;
Electric-motor pump is used 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;
Top and being provided with of upflow tube that upflow tube is arranged on soaking compartment highly are higher than being provided with highly of 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;
Bottom and being provided with of return line that return line is arranged on soaking compartment highly are higher than being provided with highly of 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.
5. soaking compartment sequential deslagging gear according to claim 4 is characterized in that, said circulation tank has the function of automatic removing slag slurry, and an end of said scum pipe is connected with soaking compartment, and the other end of scum pipe is connected with circulation tank.
Priority Applications (1)
| 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 true CN102634811A (en) | 2012-08-15 |
| CN102634811B CN102634811B (en) | 2013-12-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106140753A (en) * | 2015-04-16 | 2016-11-23 | 宝山钢铁股份有限公司 | The hardening groove cleaning administering cell body scaling fouling for continuous annealing production line |
| CN106319549A (en) * | 2015-06-19 | 2017-01-11 | 宝山钢铁股份有限公司 | Caustic wash solution on-line tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106140753A (en) * | 2015-04-16 | 2016-11-23 | 宝山钢铁股份有限公司 | The hardening groove cleaning administering cell body scaling fouling for continuous annealing production line |
| 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 |
| CN106319549A (en) * | 2015-06-19 | 2017-01-11 | 宝山钢铁股份有限公司 | Caustic wash solution on-line tank |
| 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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| CN102634811B (en) | 2013-12-11 |
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