CN110045759A - A kind of slag-tap furnace nose and zinc pot liquid level controlling method, system and liquid level detection device - Google Patents
A kind of slag-tap furnace nose and zinc pot liquid level controlling method, system and liquid level detection device Download PDFInfo
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- CN110045759A CN110045759A CN201910219370.7A CN201910219370A CN110045759A CN 110045759 A CN110045759 A CN 110045759A CN 201910219370 A CN201910219370 A CN 201910219370A CN 110045759 A CN110045759 A CN 110045759A
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- 239000007788 liquid Substances 0.000 title claims abstract description 329
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 311
- 239000011701 zinc Substances 0.000 title claims abstract description 223
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 222
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims description 92
- 239000002184 metal Substances 0.000 claims description 92
- 239000002893 slag Substances 0.000 claims description 14
- 210000001331 nose Anatomy 0.000 claims 12
- 230000000694 effects Effects 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000005097 cold rolling Methods 0.000 abstract description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of slag-tap furnace nose and zinc pot liquid level controlling methods, system and liquid level detection device, belong to cold rolling technology field, including overflow launder, and the overflow launder is arranged in the furnace nose, and is located at the side of strip upper surface；The first position of zinc gray pump, the one end of the zinc gray pump with the overflow launder towards the zinc pot bottom is connected；First liquid level gauge, the first liquid level gauge are arranged above the zinc pot；First liquid level well, the first liquid level well are arranged in the zinc pot, and are located at the underface of the first liquid level gauge, and the first liquid level gauge measures liquid level in the first liquid level well；Second liquid level well, the second liquid level well are connected with the second position of the overflow launder towards one end of the zinc pot bottom；The surface of the second liquid level well is arranged in second liquid level gauge, the second liquid level gauge, to reach level stability in guarantee zinc pot and overflow launder, improve working efficiency and guarantee the technical effect of product quality.
Description
Technical field
The present invention relates to cold rolling technology field, in particular to a kind of slag-tap furnace nose and zinc pot liquid level controlling method, system
And liquid level detection device.
Background technique
For zinc pot as one of most important equipment on cold-rolling galvanization line, effect is the zinc liquid for generating melting, and strip passes through
It is entered back into after heating furnace annealing and carries out hot dipping in zinc pot, form one layer of coat of metal in belt steel surface to protect strip substrate.
The stability of zinc pot liquid level is very big on product quality influence, and the fluctuation of zinc pot liquid level, which will lead to, generates slagging inside furnace nose,
Less serious case, which pollutes belt steel surface, causes product to degrade, and heavy then cadmia is excessive to cause strip scuffing that band is caused to produce.It is excessive especially for having
The furnace nose of flow structure influences even more serious.Level fluctuation will lead to be evacuated in the anti-overflow of zinc liquid or overflow launder, leads to band
There are a large amount of zinc gray cadmias or wipes to scratch in steel surface, and seriously affects strip surface quality.
Existing Liquid level is primarily present following problems: 1, liquidometer control precision is not high, can not accurately detect zinc
The minor change of pot liquid level.2, the detection numerical value of liquidometer is excessively relied on, the dross on zinc pot surface is floated to by other positions
It will cause when liquid level point position in the short time and ingot frequently plus in ingot or long-time be not added, liquid level is caused to fluctuate widely.3,
In daily fishing slag operation, cause the decline of zinc pot liquid level more due to fishing out cadmia in zinc pot, to liquid level measuring point when fishing out slag
The interference of generation will also result in level fluctuation.4, it should be pumped guarantee by zinc gray again by adding ingot device to guarantee zinc pot liquid level
Overflow launder liquid level, interferes with each other between the two, causes zinc fluid wave dynamic very big.
Summary of the invention
The present invention provides a kind of slag-tap furnace nose and zinc pot liquid level controlling method, system and liquid level detection device, to
The stability that not can be effectively controlled zinc pot liquid level and overflow launder liquid level in the prior art is solved, level fluctuation causes belt steel surface to be stained with
Ash occurs wiping the technical issues of scratching, influencing product quality, has reached level stability in guarantee zinc pot and overflow launder, has improved
Working efficiency and the technical effect for guaranteeing product quality.
In a first aspect, the present invention provides a kind of liquid level detection device, for the liquid level inspection at slag-tap furnace nose and zinc pot
It surveys, the zinc pot has an accommodating space, and zinc liquid is placed in the accommodating space；The furnace nose setting is empty in the accommodating
In, and the bottom end of the furnace nose stretches to below zinc liquid liquid level, and the furnace nose and the zinc pot bottom surface are pre- with one
If angle；It is characterized in that, liquid level detection device includes: overflow launder, the overflow launder is arranged in the furnace nose, and is located at
The side of strip upper surface；Zinc gray pump, first of one end towards the zinc pot bottom of zinc gray pump and the overflow launder
It sets and is connected；First liquid level gauge, the first liquid level gauge are arranged above the zinc pot；First liquid level well, first liquid level
Well is arranged in the zinc pot, and is located at the underface of the first liquid level gauge, wherein first liquid level gauge measurement described the
Liquid level in one liquid level well；Second liquid level well, the second liquid level well and the overflow launder are towards the one of the zinc pot bottom
The second position at end is connected；The surface of the second liquid level well is arranged in second liquid level gauge, the second liquid level gauge,
In, the second liquid level gauge measures liquid level in the second liquid level well.
Preferably, the second liquid level well is connected to by the first U-tube with the overflow launder.
Preferably, the zinc gray pump is connected to by the second U-tube with the overflow launder.
Second aspect, the present invention provides a kind of slag-tap furnace nose and zinc pot liquid level controlling methods, comprising: step 1: obtaining
The coil of strip information of producing line, and according to the first zinc ingot metal consumption in the coil of strip information unit of account time；Step 2: judgement is
No is fishing slag mode, if so, adjustment the first zinc ingot metal consumption is the second zinc ingot metal consumption；Step 3: obtaining and zinc ingot metal is added
Information, and according to the zinc ingot metal additional amount in the addition zinc ingot metal information unit of account time；Step 4: according to first zinc ingot metal
Consumption or the second zinc ingot metal consumption and the zinc ingot metal additional amount calculate the predetermined time interval that zinc ingot metal is added；Step 5: root
Whether meet the first preset condition according to the first time interval that predetermined time interval judgement is actually added into zinc ingot metal, works as satisfaction
When, then it judges whether there is and zinc ingot metal instruction is added；When being unsatisfactory for, zinc ingot metal is added in pause, and is back to step 1.
Preferably, in the step 5, first preset condition specifically: the first time interval > described predetermined
Time interval × 70%.
Preferably, in the step 2, the second zinc ingot metal consumption zinc ingot metal is the 1.5 of the first zinc ingot metal consumption
Times.
Preferably, it in the step 5, judging whether there is and zinc ingot metal instruction is added, further includes: referring to when there is addition zinc ingot metal
When enabling, zinc ingot metal addition is carried out according to described instruction；When there is no zinc ingot metal instruction is added, judged according to the predetermined time interval
Whether the first time interval for being actually added into zinc ingot metal meets the second preset condition, if satisfied, then carrying out zinc ingot metal addition；If discontented
Foot, then suspend addition zinc ingot metal, and be back to step 1.
Preferably, second preset condition specifically: the first time interval > predetermined time interval ×
130%.
Preferably, further includes: obtain the surface area S of liquid level in overflow launder1With the surface area S of liquid level in zinc pot liquid level2, and
Calculate the surface area S of liquid level in overflow launder1With the surface area S of liquid level in zinc pot liquid level2Ratio S1/S2；Obtain the overflow launder
The changing value H of interior liquid level1；According to the surface area S of liquid level in the overflow launder1, in the zinc pot liquid level liquid level surface area
S2, in the overflow launder liquid level changing value H1, calculate the offset H of liquid level in zinc pot2, wherein H2=(S1/S2)×
H1；By the offset H2It is added in zinc pot Liquid level value.
The third aspect, the present invention provides a kind of slag-tap furnace nose and zinc pot tank level control systems, including liquid level above-mentioned
Detection device, comprising: controller, the controller acquire the level value of the first liquid level gauge and the liquid level of second liquid level gauge
Value, and zincification instruction is sent according to the level value of the first liquid level gauge and the level value of second liquid level gauge；Zincification device, it is described
Zincification device receives the zincification instruction, and is instructed according to the zincification and zinc ingot metal is added into the zinc pot.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of slag-tap furnace nose and zinc pot liquid level controlling method provided in an embodiment of the present invention, system and level sensing dress
It sets, for the liquid level detection device for the level sensing at slag-tap furnace nose and zinc pot, the zinc pot has an accommodating space, and
Zinc liquid is placed in the accommodating space；The furnace nose is arranged in the accommodating space, and the bottom end of the furnace nose is protruded into
To zinc liquid liquid level, and the furnace nose and the zinc pot bottom surface have a predetermined angle, and the liquid level detection device also wraps
Include overflow launder, zinc gray pump, first liquid level gauge, the first liquid level well, the second liquid level well, second liquid level gauge, wherein furnace nose is inserted into zinc
In pot, overflow launder is located at furnace nose top, and the second liquid level well and zinc pot pump and be located at furnace nose both sides of head, respectively with overflow
Slot is connected, and extracts zinc liquid in overflow launder out by control zinc gray revolution speed, so that liquid level in overflow launder is lower than zinc pot liquid level, pass through
Zinc gray cadmia on furnace nose liquid level is discharged into overflow launder by overflow, to be retracted to outside furnace nose；Second liquid level well is used for zinc pot
And zinc liquid separates in overflow launder, second liquid level gauge is mounted on the surface of the second liquid level well, detects liquid level in overflow launder；The
One liquid level well location passes through first liquid level gauge and detects zinc pot liquid level in the zinc pot of furnace nose underface；Control device respectively with
First liquid level gauge, second liquid level gauge and zinc gray pump are connected, by acquisition zinc pot and overflow launder liquid level, when controlling zincification device zincification
Between and zinc gray revolution speed, to guarantee level stability in zinc pot and overflow launder, so that solve not can be effectively controlled in the prior art
The stability of zinc pot liquid level and overflow launder liquid level, level fluctuation cause belt steel surface to be stained with ash or occur wiping scuffing, influence product
The technical issues of quality, has reached level stability in guarantee zinc pot and overflow launder, improves working efficiency and guarantees product quality
Technical effect.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is slag-tap furnace nose a kind of in the embodiment of the present invention and the structural schematic diagram of zinc pot liquid level detection device；
Fig. 2 is slag-tap furnace nose a kind of in the embodiment of the present invention and the flow diagram of zinc pot liquid level controlling method；
Fig. 3 is slag-tap furnace nose a kind of in the embodiment of the present invention and another flow diagram of zinc pot liquid level controlling method；
Fig. 4 is overflow launder liquid level variation control in slag-tap furnace nose a kind of in the embodiment of the present invention and zinc pot liquid level controlling method
Flow diagram processed.
Description of symbols: 1- zinc pot；2- strip；3- furnace nose；4- overflow launder；5- second liquid level gauge；The second liquid level of 6-
Well；7- zinc gray pump；8- zincification device；9- first liquid level gauge；10- the first liquid level well.
Specific embodiment
The embodiment of the invention provides a kind of slag-tap furnace nose and zinc pot liquid level controlling methods, system and level sensing dress
It sets, to the stability for solving not can be effectively controlled zinc pot liquid level and overflow launder liquid level in the prior art, level fluctuation leads to band
Steel surface is stained with ash or occurs wiping the technical issues of scratching, influencing product quality.
Technical solution in the embodiment of the present invention, general thought are as follows:
A kind of slag-tap furnace nose and zinc pot liquid level controlling method provided in an embodiment of the present invention, system and level sensing dress
It sets, by overflow launder, the overflow launder is arranged in the furnace nose, and is located at the side of strip upper surface；Zinc gray pump, it is described
Zinc gray pump is connected with the first position of the overflow launder towards one end of the zinc pot bottom；First liquid level gauge, described first
Liquidometer is arranged above the zinc pot；First liquid level well, the first liquid level well are arranged in the zinc pot, and are located at described
The underface of first liquid level gauge, wherein the first liquid level gauge measures liquid level in the first liquid level well；Second liquid level
Well, the second liquid level well are connected with the second position of the overflow launder towards one end of the zinc pot bottom；Second liquid level
The surface of the second liquid level well is arranged in meter, the second liquid level gauge, wherein the second liquid level gauge measurement described second
Liquid level in liquid level well has reached level stability in guarantee zinc pot and overflow launder, improves working efficiency and guarantees product quality
Technical effect.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of structural schematic diagram of liquid level detection device in the embodiment of the present invention, as shown in Figure 1:
The liquid level detection device is for the level sensing at slag-tap furnace nose and zinc pot, wherein the zinc pot 1 has one
Accommodating space, and zinc liquid is placed in the accommodating space；The furnace nose 3 is arranged in the accommodating space, and the furnace nose
The bottom end of son 3 stretches to below zinc liquid liquid level, and the furnace nose 3 and 1 bottom surface of zinc pot have a predetermined angle.
Specifically, the zinc pot 1 is to accommodate the structure of zinc liquid in described device, the zinc pot 1 is mainly used for holding simultaneously
Heating Zn liquid is kept molten by zinc liquid.The bottom of the furnace nose 3 is inserted into the bottom of the zinc pot 1 and simultaneously obliquely
It is not touched with the bottom connection of the zinc pot 1, therefore, the furnace nose 3 can be arranged at an angle with the zinc pot 1.
The liquid level detection device includes overflow launder 4, and the overflow launder 4 is arranged in the furnace nose 3, and is located at strip
The side of 2 upper surfaces；Zinc gray pump 7, first of one end towards 1 bottom of zinc pot of zinc gray pump 7 and the overflow launder 4
It sets and is connected.
Further, the zinc gray pump 7 is connected to by the second U-tube with the overflow launder 4, wherein first U-tube
Different from second U-tube.
Specifically, the overflow launder 4 and zinc gray pump 7 are connected to the furnace nose 3, that is to say, that the furnace
Nose 3 is with the overflow launder 4 and zinc gray pump 7.Specific: the overflow launder 4 is arranged in furnace nose, and is located at band
The upper surface side of steel 2, the overflow launder 4 are an independent cavity, and effect is by the zinc gray zinc in furnace nose on zinc liquid level
Slag and foreign matter are discharged into overflow launder, are discharged it by zinc gray pump, guarantee the clean of zinc liquid that contact with the strip.Therefore, cadmia can be with
It is flowed by overflow in the cavity of the overflow launder 4, cadmia is discharged by the furnace by the zinc gray pump 7 being connected to the cavity
Outside nose 3.The zinc gray pump 7 is connected by U-tube with the bottom of the overflow launder 4.
First liquid level gauge 9, the first liquid level gauge 9 are arranged above the zinc pot 1.
First liquid level well 10, the first liquid level well 10 are arranged in the zinc pot 1, and are located at the first liquid level gauge 9
Underface.
Specifically, the first liquid level gauge 9 is zinc pot liquidometer, it is located at 1 one upper side of zinc pot, first liquid
Position meter 9 is for measuring zinc liquid height in the zinc pot 1.The first liquid level well 10 is zinc pot liquid level well, is located at the furnace nose 3
In the zinc pot 1 of underface, zinc pot liquid level is detected by the first liquid level gauge 9.Further, first liquid level
Well 10 is mounted on the underface of the first liquid level gauge 9, that is to say, that the first liquid level gauge 9 and the first liquid level well 10
Bracket with same central axis, and the first liquid level well 10 is fixed on the edge of the zinc pot 1, the first liquid level well
10 shape is infundibulate, and infundibulate liquid level well is placed in the zinc pot 1, and then can be examined by the first liquid level gauge 9
Liquid level in the first liquid level well 10 is surveyed, to achieve the purpose that reflect liquid level in zinc pot.
Second liquid level well 6, the second liquid level well 6 and the overflow launder 4 towards 1 bottom of zinc pot one end second
Position is connected.The surface of the second liquid level well 6 is arranged in second liquid level gauge 5, the second liquid level gauge 5.
Further, the second liquid level well 6 is connected to by the first U-tube with the overflow launder 4.
Specifically, the second liquid level well 6 is overflow launder liquid level well, it is connected to by U-tube with the overflow launder 4, it will
The overflow launder 4 is kept apart with zinc pot liquid level, i.e., the described second liquid level well 6 is used for zinc in the zinc pot 1 and the overflow launder 4
Liquid separation.The second liquid level gauge 5 is overflow launder liquidometer, is mounted on the surface of the second liquid level gauge 5, excessive for detecting
Liquid level in chute, that is to say, that the second liquid level gauge 5 and the second liquid level well 6 have same central axis, described
Second liquid level gauge 5 is mainly for detection of zinc liquid height in overflow launder liquid level well, to reflect zinc liquid height in overflow launder.Further
, the second liquid level gauge 5 and the first liquid level gauge 9 are all made of laser liquid level gauge, high to reach liquidometer measurement accuracy
Technical effect.Further, the second liquid level well 6 and zinc pot pump 7 are located at the furnace nose both sides of head, distinguish
It is connected by U-tube with the overflow launder 4, is extracted out zinc liquid in the overflow launder 4 by controlling 7 revolving speeds of the zinc gray pump,
So that liquid level in the overflow launder 4 is lower than 1 liquid level of zinc pot, zinc gray cadmia on furnace nose liquid level is discharged by overflow launder by overflow, from
And it is retracted to outside furnace nose.
Embodiment two
Fig. 2 is slag-tap furnace nose a kind of in the embodiment of the present invention and the flow diagram of zinc pot liquid level controlling method, such as Fig. 2
Shown, the slag-tap furnace nose and zinc pot liquid level controlling method include:
Step 1: obtaining the coil of strip information of producing line, and disappeared according to the first zinc ingot metal in the coil of strip information unit of account time
Consumption.
Specifically, when controlling zinc pot liquid level, firstly, the specification information of current producing line strip is obtained, wherein
Specification information include width, speed, coating etc., then according to the zinc ingot metal consumption in the strip information unit of account time.
Step 2: fishing slag mode is judged whether it is, if so, adjustment the first zinc ingot metal consumption is the consumption of the second zinc ingot metal
Amount.
Step 3: obtaining and zinc ingot metal information is added, and be added according to the zinc ingot metal in the addition zinc ingot metal information unit of account time
Amount.
Further, in the step 2, the second zinc ingot metal consumption zinc ingot metal is the first zinc ingot metal consumption
1.5 again.
Specifically, judge whether to fish out slag mode, if it is fishing slag mode, then the unit time zinc that step 1 is calculated
The second zinc ingot metal consumption that ingot consumption needs are adjusted, and obtain after adjusting is 1.5 times of calculated value in step 1, then
According to the zinc ingot metal additional amount in the get plus ingot information unit of account time, wherein adding ingot information includes zinc ingot metal specification plus ingot
Time etc., that is, according to the specification of zinc ingot metal and add ingot device plus in the ingot speed degree unit of account time zinc ingot metal additional amount.Wherein,
It is level fluctuation caused by order to cope with the fishing slag operation in production that fishing slag mode, which is added, and zinc ingot metal when fishing out slag mode, which consumes, to measure
The 150% of consumption is calculated, accelerates zinc ingot metal and is added to maintain liquid level steady.
Step 4: being calculated according to the first zinc ingot metal consumption or the second zinc ingot metal consumption and the zinc ingot metal additional amount
The predetermined time interval that zinc ingot metal is added.
Step 5: whether meeting first according to the first time interval that predetermined time interval judgement is actually added into zinc ingot metal
Preset condition then judges whether there is and zinc ingot metal instruction is added when meeting；When being unsatisfactory for, zinc ingot metal is added in pause, and is back to
Step 1.
Further, in the step 5, first preset condition specifically: the first time interval > described pre-
It fixes time interval × 70%.
Further, it in the step 5, judges whether there is and zinc ingot metal instruction is added, further includes: zinc ingot metal is added when existing
When instruction, zinc ingot metal addition is carried out according to described instruction；When there is no zinc ingot metal instruction is added, sentenced according to the predetermined time interval
Whether the disconnected first time interval for being actually added into zinc ingot metal meets the second preset condition, if satisfied, then carrying out zinc ingot metal addition；If discontented
Foot, then suspend addition zinc ingot metal, and be back to step 1.
Further, second preset condition specifically: the first time interval > predetermined time interval ×
130%.
Specifically, being obtained according to the zinc ingot metal consumption in the aforementioned unit time and the calculating of the zinc ingot metal additional amount in the unit time
It obtains and preferably adds ingot interval time.Further, it obtains preferably plus after ingot interval time, then comparing last time adds ingot away from existing
Time be exactly the difference being actually added between the first time interval of zinc ingot metal and ideal plus ingot time interval, further into
Row judgement, as shown in figure 3, then suspending addition when being unsatisfactory for the first time interval > predetermined time interval × 70%
Zinc ingot metal, and return in step 1 and continue to loop to determine；When meeting the first time interval > between the predetermined time
When × 70%, then judges whether there is plus ingot request be then normally added zinc ingot metal i.e. in the case where having plus ingot request
Can, in the case where not adding ingot request, then need to judge the first time interval > predetermined time interval × 130%,
When meeting the first time interval > predetermined time interval × 130%, then carry out being normally added zinc ingot metal, when not
When meeting the first time interval > predetermined time interval × 130%, then suspend addition zinc ingot metal, and return to step 1
In continue to loop to determine.In other words, in the case where having plus ingot request, if last time adds ingot away from the now time > ideal
Add ingot time interval × 70%, then allows to add ingot；If last time add ingot away from the now time < ideal plus ingot time interval ×
70%, then do not allow to add ingot, prevents from frequently adding liquid level caused by ingot excessively high,；In the case where not adding ingot request, if last time
Add ingot away from the now time > ideal plus ingot time interval × 130%, then allow to add ingot, to prevent from being not added caused by ingot for a long time
Liquid level is too low；If last time adds ingot away from the now time < ideal plus ingot time interval × 130%, do not allow to add ingot.
Further, further includes: obtain the surface area S of liquid level in overflow launder1With the surface area S of liquid level in zinc pot liquid level2,
And calculate the surface area S of liquid level in overflow launder1With the surface area S of liquid level in zinc pot liquid level2Ratio S1/S2；Obtain the overflow
The changing value H of liquid level in slot1；According to the surface area S of liquid level in the overflow launder1, in the zinc pot liquid level liquid level surface
Product S2, in the overflow launder liquid level changing value H1, calculate the offset H of liquid level in zinc pot2, wherein H2=(S1/S2)×
H1；By the offset H2It is added in zinc pot Liquid level value.
Specifically, mainly being realized by following steps: such as when overflow launder deslagging is added to the control of zinc pot Liquid level compensator
Shown in Fig. 4, firstly, calculating the ratio S of overflow launder liquid level and zinc pot liquid level1/S2, obtain overflow launder liquid level changing value H1, calculate zinc
The offset H of pot liquid level2=(S1/S2)×H1, offset is added in Liquid level value.Specifically, setting liquid level in overflow launder
Surface area be S1, overflow launder liquid level variable quantity is H1, overflow launder volume change V1, the surface area of zinc pot liquid level is S2, zinc pot
Liquid level variable quantity is H2, zinc pot volume change V2, because of overflow launder and zinc pot connection, when the variation of overflow launder liquid level, variation
Zinc liquid measure can be left in zinc pot, therefore V1=V2, ideal state is taken, there is V1=S1×H1, V2=S2×H2, S1*H1=S2*H2, into
And H2=S1/S2*H1, the surface area of liquid level can be obtained by calculation with zinc pot liquid level surface area in overflow launder, therefore work as overflow
Liquid level H in slot1When changing, the variable quantity H2 of zinc pot liquid level can be calculated, and this value complement is repaid into zinc pot Liquid level
In, it is thus able to maintain the relatively stable of control liquid level, prevents the zinc liquid in overflow launder from flowing back into and controls liquid level caused by zinc pot
Fluctuation.
Further, not only program is optimized in this method, is also needed to addition screen operation button, comprising: in HMI
Following functions are added in picture: the investment button of this control method, control method is put into if button is pressed, and button is cancelled
Then control method is not put into, and control method bring is avoided to interfere when being mainly used for that human intervention is needed to add ingot；2 speed percentages
Than input frame, proportionality coefficient 70% and 130% in this input frame input step 5 in actual use can be according to live liquid
Position keeps situation to be adjusted；Slag mode button is fished out, is pressed when calculating zinc ingot metal consumption multiplied by 150% if button is pressed
Button is cancelled then when calculating zinc ingot metal consumption multiplied by 100%, and the cadmia that walks is fished out when being mainly used for carrying out fishing slag operation to causing liquid
It is influenced caused by the low liquid level zinc pot of potential drop；Zinc pot Liquid level compensator mode button, can be according to the liquid level of overflow launder if investment
Variation compensates control liquid level, the uncompensation if cancelling.
Therefore, the embodiment of the present invention provides control method, and the dross for solving zinc pot surface is floated to by other positions
When liquid level point position or other reasons cause frequently to add ingot or the fluctuation of actual liquid level caused by ingot are not added for a long time, and carry out
Level fluctuation problem and zincification device when fishing out slag operation influence each other with zinc gray pump simultaneously operation and liquid level shakiness are caused to be asked
Topic.
Embodiment three
The embodiment of the invention also provides a kind of slag-tap furnace nose and zinc pot tank level control systems, including liquid level above-mentioned to examine
Survey device, the slag-tap furnace nose and zinc pot tank level control system further include:
Controller, the controller are connect with the first liquid level gauge 9, second liquid level gauge 5, zinc gray pump 7 respectively.Zincification dress
8 are set, the zincification device 8 receives the zincification instruction that the controller issues, and zinc ingot metal is added in Xiang Suoshu zinc pot 1.
Specifically, the zincification device 8 is the device that zinc ingot metal is added to the inside of the zinc pot 1, the zincification device 8 is connect
The zincification order that admission controller issues, periodically feeds zinc ingot metal into zinc pot.Further, the control device and first liquid
Position meter 9, second liquid level gauge 5, zinc gray pump 7, zincification device 8 are separately connected, and the control device passes through acquisition zinc pot and overflow launder
Level value, control zincification device add ingot time and zinc gray revolution speed, wherein the control device is by controlling the zinc gray pump 7
Revolving speed in turn extracts the zinc liquid in the overflow launder 4 out, and guarantees that zinc pot liquid level and overflow launder liquid level keep stablizing.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of slag-tap furnace nose and zinc pot liquid level controlling method provided in an embodiment of the present invention, system and level sensing dress
It sets, for the liquid level detection device for the level sensing at slag-tap furnace nose and zinc pot, the zinc pot has an accommodating space, and
Zinc liquid is placed in the accommodating space；The furnace nose is arranged in the accommodating space, and the bottom end of the furnace nose is protruded into
To zinc liquid liquid level, and the furnace nose and the zinc pot bottom surface have a predetermined angle, and the liquid level detection device also wraps
Include overflow launder, zinc gray pump, first liquid level gauge, the first liquid level well, the second liquid level well, second liquid level gauge, wherein furnace nose is inserted into zinc
In pot, overflow launder is located at furnace nose top, and the second liquid level well and zinc pot pump and be located at furnace nose both sides of head, respectively with overflow
Slot is connected, and extracts zinc liquid in overflow launder out by control zinc gray revolution speed, so that liquid level in overflow launder is lower than zinc pot liquid level, pass through
Zinc gray cadmia on furnace nose liquid level is discharged into overflow launder by overflow, to be retracted to outside furnace nose；Second liquid level well is used for zinc pot
And zinc liquid separates in overflow launder, second liquid level gauge is mounted on the surface of the second liquid level well, detects liquid level in overflow launder；The
One liquid level well location passes through first liquid level gauge and detects zinc pot liquid level in the zinc pot of furnace nose underface；Control device respectively with
First liquid level gauge, second liquid level gauge and zinc gray pump are connected, by acquisition zinc pot and overflow launder liquid level, when controlling zincification device zincification
Between and zinc gray revolution speed, to guarantee level stability in zinc pot and overflow launder, so that solve not can be effectively controlled in the prior art
The stability of zinc pot liquid level and overflow launder liquid level, level fluctuation cause belt steel surface to be stained with ash or occur wiping scuffing, influence product
The technical issues of quality, has reached level stability in guarantee zinc pot and overflow launder, improves working efficiency and guarantees product quality
Technical effect.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of liquid level detection device, for the level sensing at slag-tap furnace nose and zinc pot, the zinc pot has an accommodating empty
Between, and zinc liquid is placed in the accommodating space；The furnace nose is arranged in the accommodating space, and the bottom end of the furnace nose
It stretches to below zinc liquid liquid level, and the furnace nose and the zinc pot bottom surface have a predetermined angle；It is characterized in that, liquid level is examined
Surveying device includes:
Overflow launder, the overflow launder are arranged in the furnace nose, and are located at the side of strip upper surface；
The first position of zinc gray pump, the one end of the zinc gray pump with the overflow launder towards the zinc pot bottom is connected；
First liquid level gauge, the first liquid level gauge are arranged above the zinc pot；
First liquid level well, the first liquid level well are arranged in the zinc pot, and are located at the underface of the first liquid level gauge,
In, the first liquid level gauge measures liquid level in the first liquid level well；
Second liquid level well, the second liquid level well are connected with the second position of the overflow launder towards one end of the zinc pot bottom
It is logical；
The surface of the second liquid level well is arranged in second liquid level gauge, the second liquid level gauge, wherein the second liquid level gauge
Measure liquid level in the second liquid level well.
2. liquid level detection device as described in claim 1, which is characterized in that the second liquid level well by the first U-tube with
The overflow launder connection.
3. liquid level detection device as described in claim 1, which is characterized in that zinc gray pump by the second U-tube with it is described
Overflow launder connection.
4. a kind of slag-tap furnace nose and zinc pot liquid level controlling method characterized by comprising
Step 1: obtaining the coil of strip information of producing line, and consumed according to the first zinc ingot metal in the coil of strip information unit of account time
Amount；
Step 2: fishing slag mode is judged whether it is, if so, adjustment the first zinc ingot metal consumption is the second zinc ingot metal consumption；
Step 3: obtaining and zinc ingot metal information is added, and according to the zinc ingot metal additional amount in the addition zinc ingot metal information unit of account time；
Step 4: zinc ingot metal is calculated according to the first zinc ingot metal consumption or the second zinc ingot metal consumption and the zinc ingot metal additional amount
The predetermined time interval of addition；
Step 5: default according to whether the first time interval that predetermined time interval judgement is actually added into zinc ingot metal meets first
Condition then judges whether there is and zinc ingot metal instruction is added when meeting；When being unsatisfactory for, zinc ingot metal is added in pause, and is back to step
1。
5. slag-tap furnace nose as claimed in claim 4 and zinc pot liquid level controlling method, which is characterized in that in the step 5,
First preset condition specifically: the first time interval > predetermined time interval × 70%.
6. slag-tap furnace nose as claimed in claim 4 and zinc pot liquid level controlling method, which is characterized in that in the step 2,
The second zinc ingot metal consumption zinc ingot metal is 1.5 times of the first zinc ingot metal consumption.
7. slag-tap furnace nose as claimed in claim 4 and zinc pot liquid level controlling method, which is characterized in that in the step 5,
It judges whether there is and zinc ingot metal instruction is added, further includes:
When there is addition zinc ingot metal instruction, zinc ingot metal addition is carried out according to described instruction；
When there is no zinc ingot metal instruction is added, the first time interval of zinc ingot metal is actually added into according to predetermined time interval judgement
Whether second preset condition is met, if satisfied, then carrying out zinc ingot metal addition；If not satisfied, then suspending addition zinc ingot metal, and it is back to step
Rapid 1.
8. slag-tap furnace nose as claimed in claim 7 and zinc pot liquid level controlling method, which is characterized in that the second default item
Part specifically: the first time interval > predetermined time interval × 130%.
9. such as the described in any item slag-tap furnace noses of claim 4-8 and zinc pot liquid level controlling method, which is characterized in that also wrap
It includes:
Obtain the surface area S of liquid level in overflow launder1With the surface area S of liquid level in zinc pot liquid level2, and calculate liquid level in overflow launder
Surface area S1With the surface area S of liquid level in zinc pot liquid level2Ratio S1/S2；
Obtain the changing value H of liquid level in the overflow launder1；
According to the surface area S of liquid level in the overflow launder1, in the zinc pot liquid level liquid level surface area S2, liquid in the overflow launder
The changing value H of position height1, calculate the offset H of liquid level in zinc pot2, wherein H2=(S1/S2)×H1；
By the offset H2It is added in zinc pot Liquid level value.
10. a kind of slag-tap furnace nose and zinc pot tank level control system, including level sensing as described in any one of claims 1-3
Device characterized by comprising
Controller, the controller acquire the level value of the first liquid level gauge and the level value of second liquid level gauge, and according to institute
The level value of the level value and second liquid level gauge of stating first liquid level gauge sends zincification instruction；
Zincification device, the zincification device receives the zincification instruction, and is instructed according to the zincification and be added into the zinc pot
Zinc ingot metal.
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| CN115584457A (en) * | 2022-09-30 | 2023-01-10 | 武汉钢铁有限公司 | Annular overflow device and method for closed-loop control of zinc addition through internal liquid level measurement |
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Application publication date: 20190723 |