CN110023515A - For measuring the device and method of the apparent height of molten metal - Google Patents
For measuring the device and method of the apparent height of molten metal Download PDFInfo
- Publication number
- CN110023515A CN110023515A CN201780072952.6A CN201780072952A CN110023515A CN 110023515 A CN110023515 A CN 110023515A CN 201780072952 A CN201780072952 A CN 201780072952A CN 110023515 A CN110023515 A CN 110023515A
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- CN
- China
- Prior art keywords
- outlet
- electromotive force
- molten metal
- height
- induced electromotive
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/21—Arrangements of devices for discharging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/26—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/28—Arrangements of monitoring devices, of indicators, of alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0028—Devices for monitoring the level of the melt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention relates to a kind of equipment for calculating the apparent height for the molten metal being contained in the container for being provided with outlet, the equipment includes: measuring unit, which is mounted to measure the induced electromotive force generated by the movement of molten metal at different height in a reservoir；And processing unit, the processing unit are used to determine the apparent height of molten metal at different height by using the value measured.The present invention can accurately measure the apparent height of molten metal.
Description
Technical field
This disclosure relates to the device and method for measuring apparent height, and more particularly relate to accurately measure
The device and method of the apparent height of molten metal.
Background technique
In general, blast furnace operating includes: to load iron ore and coke to be blown into height to the process of the upper part of blast furnace, by hot wind
So that the process of coke burning, the heat caused by coke burning and gas go to clean from iron ore in the air port limited in furnace
Matter and oxygen are to produce the process of molten iron.Molten iron in liquid is stored in the lower part of blast furnace, and the molten iron is at one section
Between after by tapping hole discharge.
In this regard, when molten iron is stored in because emissions operation is not performed correctly equal to or higher than under blast furnace
When at the height of a certain height in part, it may not be smoothly supplied into blast furnace by the hot wind that air port supplies, thus
Increase blast pressure.When this phenomenon becomes even worse, channel may occur in blast furnace, so that the efficiency of blast furnace operating be made to drop
It is low.In addition, the possible reverse flow of molten iron to air port and damages air port, and entire blast furnace operating may interrupt.Therefore, it is necessary to
The height of the molten iron in blast furnace is measured, and suitably keeps the height.
In general, in order to measure the height of molten iron, pass through the such as raw material of iron ore, coke etc. that is loaded into blast furnace
Amount and the amount of the molten iron of discharge are compared to the height of the molten iron in prediction blast furnace.It is loaded into blast furnace however, accurately calculating
Raw material amount exist limitation, make it impossible to accurately predict molten iron height.
Alternatively, the stress or measurement that the outer surface of blast furnace is transferred to using strain transducer measurement are returned from blast furnace
The magnitude of current returned speculates the height of molten iron.However, accuracy is lower, so that availability is very low.Therefore, it is necessary to one kind being capable of essence
Really measure the technology of the height of the molten iron in blast furnace.
(relevant technical literature)
Korean Patent Application Publication No.2001-0019977
Korean Patent Application Publication No.2010-0071347
Summary of the invention
Technical problem
The disclosure provides a kind of for accurately measuring the device and method of the apparent height of molten metal.
The disclosure provide it is a kind of can reliably execute molten metal emissions operation for accurately measuring molten metal
Apparent height device and method.
Technical solution
A kind of being contained in the molten metal in the container exported for measuring according to embodiment of the present disclosure
The equipment of apparent height includes: measuring unit, which is mounted to based on vertical height measurement by melting gold on container
Induced electromotive force caused by the movement of category；And processing unit, processing unit are configured with the sense based on vertical height measurement
The value of electromotive force is answered to determine the apparent height of molten metal.
Measuring unit includes the multiple measuring instruments being arranged in the vertical direction.
Define the air port of supply hot wind in a reservoir, and the multiple measuring instrument be arranged in outlet and air port it
Between.
Outlet includes multiple outlets, and measuring unit includes multiple measuring instruments, and the multiple measuring instrument is correspondingly
Installation is used for the multiple outlet.
Processing unit includes processor, which is configured to determine the value of the induced electromotive force measured based on vertical height
In maximum value and select apparent height of the vertical height as molten metal corresponding to maximum value.
The equipment further includes control unit, which is connected to processing unit to control the opening and closing of outlet.
Control unit includes: comparator, the comparator arrangement at will correspond to the vertical height of maximum induced electromotive force with
Predetermined vertical height range is compared；And controller, the controller are configured to when vertical height is in predetermined vertical height model
The opening duration of outlet is adjusted when except enclosing.
Outlet includes multiple outlets, and opens the duration while controller the multiple outlet of control.
A method of according to embodiment of the present disclosure for measuring the apparent height of the molten metal inside container
It include: the outlet opened and limited in a reservoir；Discharge the molten metal inside container；Close outlet；It is measured based on vertical height
The induced electromotive force generated by the movement of molten metal；And show that the surface of molten metal is high using the induced electromotive force of measurement
Degree.
Show that the apparent height of molten metal comprises determining that in the value of the induced electromotive force based on vertical height measurement most
Big value；And select apparent height of the vertical height corresponding to the maximum value as molten metal.
Outlet includes multiple outlets, and respective including measuring each outlet based on vertical height measurement induced electromotive force
Induced electromotive force.
Determine that the maximum value in the value of the induced electromotive force measured based on vertical height includes: each outlet using measurement
Respective induced electromotive force determines maximum value for identified outlet to determine one outlet.
Outlet includes multiple outlets, and includes in the multiple outlet based on vertical height measurement induced electromotive force
Be opened and close outlet measurement induced electromotive force.
This method further include: after obtaining the apparent height of molten metal, by the height value obtained and predetermined vertical height
Degree range is compared；And when the vertical height obtained is when except predetermined altitude range, the molten metal to be discharged is adjusted
Amount.
The amount for adjusting the molten metal to be discharged includes adjusting the opening duration of outlet.
The opening duration of the multiple outlet can overlap each other, and the opening duration for adjusting outlet includes
It adjusts the opening duration of each outlet or opens at least one of duration while the multiple outlet.
It include sequentially and vertically upward measuring induced electromotive force based on vertical height measurement induced electromotive force.
Container includes blast furnace or FINEX smelting furnace, and molten metal includes molten iron.
Beneficial effect
It, can be based on vertical high when the discharge for the molten iron being stored in container stops according to embodiment of the present disclosure
Degree measurement induced electromotive force as caused by the horizontal movement of molten metal.Therefore, it is possible to use the induced electromotive force of measurement is accurate
The apparent height of ground measurement molten metal.
In addition, due to can accurately measure the apparent height of molten metal, thus may determine that the melting to be discharged gold
The amount of category, so that storing the molten metal of appropriate amount in container.Therefore, the discharge of molten metal can be executed steadily with appropriate
Ground keeps the amount of the molten metal in container.Therefore, it can inhibit or prevent the hair of the increase of the blast pressure in container, channel
Adverse current of the raw or molten metal to air port.
Detailed description of the invention
Fig. 1 illustrates the structures according to the blast furnace facility of embodiment of the present disclosure.
The equipment that Fig. 2 illustrates the apparent height for measuring molten metal according to embodiment of the present disclosure.
Fig. 3 illustrates the variation of the height of the molten steel for being located at outlet top according to embodiment of the present disclosure.
Fig. 4 is to show the stream of the method for the apparent height for measuring molten metal according to embodiment of the present disclosure
Cheng Tu.
Fig. 5 illustrates the discharge arrangement of multiple outlets according to embodiment of the present disclosure.
Fig. 6 is to show the measurement knot of the induced electromotive force based on vertical height measurement according to embodiment of the present disclosure
The curve graph of fruit.
Specific embodiment
Hereinafter, the illustrative embodiments of the disclosure are described in detail with reference to the accompanying drawings.However, the disclosure is not
It is limited to embodiments disclosed below, but may be realized in various forms.Embodiment of the present disclosure is provided so that the disclosure
Disclosure it is complete and sufficiently convey the scope of the present disclosure to disclosure those skilled in the art.Attached drawing may be amplified
The disclosure is described in detail, wherein run through attached drawing, identical appended drawing reference indicates identical element.
Fig. 1 illustrates the structures according to the blast furnace facility of embodiment of the present disclosure.Embodiment of the present disclosure instantiates
Equipment for measuring the apparent height of molten metal is arranged in blast furnace 11, but the range applied is without being limited thereto.For surveying
The equipment for measuring the apparent height of molten metal may be mounted at the various containers of FINEX smelting furnace for such as storing molten metal etc.
On.
Referring to Fig.1, blast furnace 11 is the facility using iron ore and coke continuous production molten iron.Under blast furnace 11 can be formed as
State container shapes: the inner space that the container shapes have open top and are limited in container shapes.The appearance of blast furnace 11
Face is made of steel plate 11a, and refractory material can be used for constructing the structure inside steel plate 11a.Iron ore, coke etc. together
When being loaded onto the open top of blast furnace 11 and being heated to about 1500 DEG C by blowing hot-air, molten metal (or molten iron or
Slag) blast furnace 11 can be stored in inner space lower part in.
Air port 12 can be limited in the lower part of blast furnace 11.Air port 12 can connect to warm-air supply pipeline 20 and can be with
It will be blown into blast furnace 11 from the hot wind that warm-air supply pipeline 20 supplies.Air port 12 may include setting along the outer periphery of blast furnace 11
The multiple air ports set.
Warm-air supply pipeline 20 may include: ring pipe 21, and ring pipe 21 is around the periphery of blast furnace 11 with will be from hot-blast stove
The hot wind of (not shown) supply is supplied uniformly across to the inner space of blast furnace 11；And blast connection 22, blast connection 22 is from ring
Shape pipe 21 branches to each air port 12.Therefore, from hot-blast stove supply hot wind can be uniformly introduced by multiple air ports 12 to
In blast furnace 11.
Outlet 13 can be formed in the lower portion of blast furnace 11.Outlet 13 is located at 12 lower section of air port.Outlet 13 may include
Multiple outlets.For example, four outlets can be respectively set along the periphery of blast furnace 11 and be arranged on four direction.Outlet 13 is
It is openable and closable.Therefore, when outlet 13 is closed, the amount for the molten metal being stored in blast furnace 11 can increase, and
And when outlet 13 is opened, the molten metal being stored in blast furnace 11 can be discharged.However, the number of outlet and the knot of blast furnace 11
Structure is without being limited thereto, and can change.
In this regard, at the height of a certain height in the lower part that molten metal is stored in equal to or higher than blast furnace 11
When, the hot wind supplied by air port 12 may not be smoothly supplied into blast furnace 11, so that blast pressure may increase.When this
When kind phenomenon becomes even worse, channel may occur in blast furnace 11, so that making the efficiency of blast furnace operating reduces.In addition, melting gold
Belong to possible reverse flow and to air port 12 and damage air port 12, and entire blast furnace operating may interrupt.Therefore, it is necessary to measure height
The height of molten iron in furnace 11, and suitably keep the height.
The equipment that Fig. 2 illustrates the apparent height for measuring molten metal according to embodiment of the present disclosure.In addition,
Fig. 3 illustrates the variation of the height of the molten steel for being located at outlet top according to embodiment of the present disclosure.
Referring to Fig. 2, measured according to the equipment 100 of the apparent height for measuring molten metal of embodiment of the present disclosure
It is contained in the apparent height for the molten metal being provided in the container of outlet 13.Apparent height for measuring molten metal is set
Standby 100 include: measuring unit 110, and measuring unit 110 is mounted to measure the fortune by molten metal based on vertical height on container
The raw induced electromotive force of movable property；And processing unit 120, processing unit 120 be used for using the value measured based on vertical height come
Determine the apparent height of molten metal.In addition, the equipment 100 of the apparent height for measuring molten metal can also include control
Unit 130, control unit 130 are connected to processing unit 120 to control the opening and closing of outlet 13.In this regard, container can
To be blast furnace 11 or FINEX smelting furnace, and molten metal can be molten iron S.
Measuring unit 110 measures the induced electromotive force generated by the movement of the molten iron S in blast furnace 11 based on vertical height.It surveys
Amount unit 110 includes the multiple measuring instruments 111 being arranged in the vertical direction.
Measuring instrument 111 can measure induced electromotive force.The outer surface of blast furnace 11 is made of steel plate 11a, and blast furnace 11
Inner surface be made of refractory material 11b.Measuring instrument 111 can be to pass through steel plate 11a and fire proofed wood from the outside of blast furnace 11
The mode of material 11b is installed.Therefore, measuring instrument 111 can be close to molten iron S, and measuring instrument 111 can be measured more accurately
The variation of induced electromotive force.
In addition, measuring instrument 111 can be respectively by penetrating the electrode of the refractory material 11b of blast furnace 11 and being connected to electrode
Conducting wire is made.Refractory material 11b can protect electrode from the influence of the high temperature of molten iron S.However, the present disclosure is not limited thereto, and
And measuring instrument 111 can be formed in single conducting wire such as platinum filament.
Measuring instrument 111 can be removably mounted at blast furnace 11.Therefore, in measuring instrument 111 due to length
When time uses and damages, measuring instrument 111 can be easily removed and be replaced from blast furnace 11.It therefore, can be in order to measuring list
The maintenance of member 110.
In this regard, the phenomenon that electric current being induced in coil by the relative motion of magnet and coil referred to as electromagnetism sense
Answer phenomenon.Induced electromotive force is referred to as by the electromotive force that electromagnetic induction phenomenon generates.When molten iron S is mobile, induction can produce
Magnetic field.In addition, measuring instrument 111 can measure the induced electromotive force generated at this time.
For example, as shown in Figure 3, when the molten iron in blast furnace 11 discharges, due to the stickiness and surface tension of molten iron S, only
A part of molten iron S close to outlet 13 can be by 13 discharge of outlet, and the molten iron S in other regions may not be smoothly
It is moved to outlet 13.Therefore, the apparent height of the molten iron S of 13 top of outlet can be relatively lower than the molten iron S's in other regions
Apparent height.Therefore, when outlet 13 is closed, due to the molten iron S property to be flattened in blast furnace 11,13 top of outlet in row
Temporarily-depressed molten iron S horizontally restores to upside during putting.Therefore, outlet 13 top molten iron S can in other regions
Molten iron S flush.
When molten iron S is moved horizontally, multiple measuring instruments 111 can be measured based on vertical height is drawn by the movement of molten iron S
The magnitude of the induced electromotive force risen.Due to molten iron S surface vertical upward movement and restore, induced electromotive force can be by more
A measuring instrument 111 is sequentially measured from the measuring instrument 111 of measuring instrument 111 to the top of bottommost.The surface of molten iron S
Height can be measured by using the measured value from measuring instrument 111.
Blast furnace 11 is formed with air port 12 and outlet 13, can supply hot wind by air port 12, passes through 13 discharge molten iron of outlet
S.Multiple measuring instruments 111 can be arranged between air port 12 and outlet 13.Multiple measuring instruments 111 can be in a vertical direction
Arrange it is in a row, and can based on vertical height measure induced electromotive force.The measurement of measuring instrument 111 can be used from outlet 13
The apparent height of the molten iron S of 12 lower section of top to air port.Therefore, the apparent height of the molten iron S of 13 top of outlet can be measured.This
Outside, whether the amount that can monitor the molten iron S in blast furnace 11 has reached the vertical height in air port 12.
In this regard, since the position of measuring instrument 111 is scheduled, thus can be known in advance the bottom surface of blast furnace 11 with
The distance between measuring instrument of bottommost.The vertical height value measured using measuring instrument 111 is since above outlet 13.Cause
This, can be surveyed by being worth the distance between the measuring instrument 111 of bottommost and bottom surface with the Calais vertical height Zhi Xiang measured
Measure apparent height of the molten iron S relative to the bottom surface of blast furnace 11.
Furthermore it is possible to adjust the number of measuring instrument 111 to be offered as needed.For example, by increasing measurement
The number of instrument 111 and when the spacing between measuring instrument 111 being made to narrow, the number for measuring the position of induced electromotive force increases,
To more precisely compute the apparent height of molten iron S.Therefore, the spacing between adjustable measuring instrument 111 is to adjust or mention
High measurement accuracy.
Multiple outlets 13 have can be set in blast furnace 11, and measuring unit 110 may include installation respectively for described more
The multiple measuring instrument 111 of a outlet 13.Outlet 13 can be entirely located in identical vertical height.
Processing unit 120 determines the apparent height of molten iron S using the measured value from measuring unit 110.Processing unit
120 include processor 122, the maximum value in value of the processor 122 for determining the induced electromotive force measured based on vertical height
And for selecting apparent height of the vertical height corresponding with maximum value as molten metal.Processing unit 120 can also wrap
Include the amplifier 121 for amplifying to the measured value from measuring unit 110 and for coming from processing to operator's instruction
The indicator 123 of the calculated result of device 122.
Amplifier 121 is connected to measuring instrument 111.Amplifier 121 can be to the induction electric measured by measuring instrument 111
Gesture value amplifies.Since the magnitude of the induced electromotive force inputted from measuring instrument 111 is smaller, the induced electromotive force of measurement
It can be amplified by amplifier 121 and be exported.Therefore, it can be put from all induced electromotive forces that measuring instrument 111 inputs
Greatly and export to processor 122.
Furthermore it is possible to remove noise from amplifier 121 to improve the computational accuracy of processor 122.That is, can be
The function of the addition low-pass filter of amplifier 121.The surface of molten iron S can due to the other reasons other than horizontal movement and
It is mobile.For example, being mounted on the measuring instrument 110 of 13 top of one outlet can measure when another outlet 13 opens or closes
The induced electromotive force as noise generated by the movement on the surface of molten iron S.Therefore, noise is removed, so that preventing processor
122 mistakenly calculate the apparent height of molten iron S.
Processor 122 is connected to amplifier 121.The measurement induced electricity amplified by amplifier 121 can be used in processor 122
Kinetic potential value determines the apparent height of the molten iron S in blast furnace 11.Processor 122 is to the measurement induced electricity measured based on vertical height
Kinetic potential value is compared and selects vertical height locating for the maximum induced electromotive force of measurement.Therefore, processor 122 can determine
Selected vertical height is the apparent height of molten iron S.
Indicator 123 is connected to processor 122.Indicator 123 can indicate the molten iron S's calculated at processor 122
Apparent height.For example, indicator 123 can be display and visually indicate the apparent height of molten iron S.However, instruction
The mode of device 123 to operator notification apparent height is without being limited thereto, and can change.
Control unit 130 can connect to processing unit 120 opening and closing for controlling outlet 13.Control unit 130
Including comparator (not shown) and controller (not shown), comparator will be for that will correspond to the vertical height of maximum induced electromotive force
It is compared with predetermined vertical height range, controller is used to adjust when except predetermined vertical height range when vertical height value
The opening duration of outlet 13.
Comparator is connected to processor 122.Comparator can be by the apparent height value of given molten iron S and predetermined vertical height
Range is compared.Predetermined vertical height range can be changed by operator.Comparator can determine: when the table of given molten iron S
When face height value is within the scope of predetermined vertical height or outside predetermined vertical height range, apparent height value is normal or not
Qualified.
When the apparent height value of given molten iron S is higher than predetermined vertical height range, it can determine and be stored in blast furnace 11
Molten iron S amount it is too big.In addition, can determine height when the apparent height value of given molten iron S is lower than predetermined vertical height range
The amount of molten iron S in furnace 11 is too small.Hence, it can be determined that the amount for the molten iron being stored in blast furnace 11 is unsuitable.
In this regard, comparator can connect to indicator 123.Therefore, the iron water amount in blast furnace 11 is too small or too big
When, comparator can send caution signal to operator.Therefore, whether the amount that operator can monitor the molten iron in blast furnace 11 fits
When.
Controller is connected to comparator.Controller can adjust beating for outlet 13 based on the definitive result from comparator
Open the duration.Alternatively, the opening duration of the multiple outlet 13 can be adjusted respectively so that the multiple outlet
13 opening duration overlapping.It is adjustable to be overlapped the duration to increase or decrease the amount for the molten iron S to be discharged.Therefore,
Adjustable controller, so that the apparent height for the molten iron S being stored in blast furnace 11 is within the scope of predetermined vertical height.
For example, can increase when the apparent height value of the molten iron S of calculating is higher than predetermined vertical height range from outlet 13
The amount of the molten steel of discharge.The duration is opened while that is, the multiple outlet 13 can be increased.Therefore, from blast furnace
The increase for the duration that the amount of the molten iron S of 11 discharges is discharged with molten iron by the multiple outlet 13 simultaneously increases.Cause
This, the amount for the molten iron S being stored in blast furnace 11 can greatly reduce.Therefore, the apparent height of the molten iron S in blast furnace 11 can drop
It is low.
On the other hand, when the apparent height of the molten iron S of calculating is lower than predetermined vertical height range, it is possible to reduce from outlet
The amount of the molten iron of 13 discharges.That is, it is possible to reduce open the duration while the multiple outlet 13.Therefore, from height
The amount for the molten iron S that furnace 11 discharges is reduced with the reduction of the molten iron S duration discharged by the multiple outlet 13.Cause
This, the amount for the molten iron S being stored in blast furnace 11 can be reduced slightly.Therefore, the surface of the molten iron S in blast furnace 11 can be inhibited high
The reduction of degree.
Equally, it when the discharge for the molten iron being stored in blast furnace 11 stops, being measured based on vertical height by molten iron S's
Induced electromotive force caused by horizontal movement.Therefore, it is possible to use the surface that the induced electromotive force of measurement accurately measures molten iron S is high
Degree.
In addition, due to can accurately measure the apparent height of molten iron S, thus may determine that the amount for the molten iron S to be discharged,
So that molten iron S is stored in blast furnace 11 with amount appropriate.Therefore, the discharge of molten iron S can be executed steadily suitably to keep
The amount of molten iron S in blast furnace 11.Therefore, can inhibit or prevent the increase of the blast pressure in blast furnace 11, the generation of channel or
Adverse current of the molten iron S to air port 12.
Fig. 4 is to show the stream of the method for the apparent height for measuring molten metal according to embodiment of the present disclosure
Cheng Tu.In addition, Fig. 5 illustrates the discharge arrangement of multiple outlets according to embodiment of the present disclosure.In addition, Fig. 6 is to show
The curve graph of the measurement result of the induced electromotive force measured according to embodiment of the present disclosure based on vertical height.
Referring to Fig. 4, the method according to the apparent height for measuring molten metal of embodiment of the present disclosure includes: to beat
Open up the outlet (S100) set on container；Discharge the molten metal (S200) inside container；Close outlet (S300)；Based on perpendicular
The induced electromotive force (S400) generated to elevation carrection by the movement of molten metal；And molten metal is obtained using measured value
Apparent height (S500).
In this regard, container can be blast furnace or FINEX smelting furnace, and molten metal can be molten iron.Therefore, for surveying
The method that the method for amount apparent height can be the apparent height for calculating the molten iron being contained in blast furnace.In addition, closing out
Mouthful and based on vertical height measurement the induced electromotive force as caused by the movement of molten metal can simultaneously or sequentially carry out.
For example, when the molten iron S in blast furnace 11 is discharged, due to the stickiness and surface tension of molten iron S, only close to outlet 13
A part of molten iron S can be by 13 discharge of outlet, and the molten iron S in other regions may not smoothly be moved to outlet
13.Therefore, the apparent height of the molten iron S of 13 top of outlet can be relatively lower than the apparent height of the molten iron S in other regions.
When outlet 13 is closed, due to the molten iron S property to be flattened in blast furnace 11,13 top of outlet during discharge
Temporarily-depressed molten iron S horizontally restores to upside.Therefore, the molten iron S of 13 top of outlet can be with the molten iron S in other regions
It flushes.It can measure by the induced electromotive force of the movement generation of molten iron S and measure the apparent height of molten iron S.
That is, the maximum value of the induced electromotive force based on vertical height measurement can be determined.For example, can be by right
Induced electromotive force value based on vertical height measurement is compared to selection maximum value.It is then possible to select to correspond to maximum value
Apparent height of the vertical height as molten iron S.It, can sequentially and vertically upward due to molten iron S vertical upward movement
Ground measures induced electromotive force.
In this regard, multiple outlets 13 have can be set in blast furnace 11.The multiple measuring instrument 111 may be mounted at described
The top of multiple outlets 13.The information arranged about discharge can be provided before measuring induced electromotive force with measuring instrument 111.
That is, the information of the time opened and closed about the multiple outlet 13 can be provided.It therefore, can be based in outlet
Each outlet arrangement come select by each measuring unit 110 measure induced electromotive force time.
For example, as shown in Figure 5, two or four outlet 13 can be arranged on blast furnace 11.Work as one outlet using
13 open and while the induced electromotive force at the one outlet 13 that while closing measures determines the apparent height of molten iron S, can be with
Another outlet is opened 13 to discharge molten iron S.Therefore, while molten iron S is emitted into the multiple outlet 13 by execution, Ke Yilian
The apparent height of molten iron S is determined continuously.
In the case where outlet 13 includes two outlets, first outlet 13a and second outlet has been can be set in blast furnace 11
13b.First outlet 13a and second outlet 13b can be alternately turned on and be closed to discharge molten iron S.Therefore, in first outlet
13a is opened to discharge molten iron and then after first outlet 13 is closed, can be by the measurement that is arranged in above first outlet 13a
Unit 110 measures induced electromotive force.
Using the surface height that molten iron S is determined by being arranged in the value that the measuring unit 110 above first outlet 13a measures
While spending, second outlet 13b can be opened to continue to discharge molten iron S.In this regard, first outlet 13a can go out second
The front opening of mouth 13b closing, and first outlet 13a and second outlet 13b can be opened together.
Therefore, the opening duration of first outlet 13a and second outlet 13b can be overlapped.Increase the overlapping duration
The amount of the molten metal S in blast furnace 11 can be greatly reduced, and reduce overlapping the duration can slightly reduce in blast furnace 11
Molten metal S amount.Therefore, when the apparent height for determining the molten iron S by opening and closing first outlet 13a calculating is higher
When, second outlet 13 can be opened to open the duration more to execute overlapping discharge than initial.First outlet can be increased
The duration is opened while 13a and second outlet 13b are opened together to increase the amount for the molten iron S to be discharged.
Then, it when second outlet 13b is closed, can be measured by being located at the measuring unit 110 above second outlet 13b
Induced electromotive force.High come the surface for determining molten iron S using the value by being arranged in the measuring unit measurement above second outlet 13b
While spending, molten iron S can continue to discharge by first outlet 13a.
Second outlet 13b can be in the front opening of first outlet 13a closing, and first outlet 13a and second outlet 13b
It can open together.When opening lasting while can adjusting first outlet 13a and second outlet 13b based on second predetermined value
Between, to adjust the amount for the molten iron being stored in blast furnace 11.Therefore, the discharge of molten iron S and the surface of molten iron S can be continued to execute
The determination of height.
In addition, blast furnace 11 can be set first outlet 13a, second go out in the case where outlet 13 includes four outlets
Mouth 13b, third outlet 13c and the 4th outlet 13d.When executing maintenance work to the 4th outlet 13d, can be sequentially switched on
And molten iron S is discharged while closing first outlet 13a, second outlet 13b and third outlet 13c.Therefore, in first outlet 13a
After opening and closing, induced electromotive force can be measured by being arranged in the measuring unit 110 above first outlet 13a.
It is calculating by being arranged in the value that the measuring unit 110 above first outlet 13a measures to determine that the surface of molten iron S is high
While spending, second outlet 13b can be opened to continue to discharge molten iron S.At this point, first outlet 13a can be in second outlet 13b
The front opening of closing, and first outlet 13a and second outlet 13b can be opened together.
Therefore, the opening duration of first outlet 13a and second outlet 13b can be overlapped.Increase the overlapping duration
The amount of the molten metal S in blast furnace 11 can be greatly reduced, and reduce overlapping the duration can slightly reduce in blast furnace 11
Molten metal S amount.Therefore, the apparent height determining by opening and closing the molten iron S that first outlet 13a is determined is higher
When, the duration is opened while first outlet 13a and second outlet 13b can be increased, to increase the molten iron S's to be discharged
Amount.
Then, it when second outlet 13b is closed, can be measured by being arranged in the measuring unit 110 above second outlet 13b
To induced electromotive force.In addition, determining iron using by being arranged in the value that the measuring unit 110 above second outlet 13b measures
While the apparent height of water S, the discharge that molten iron S exports 13c by third can be continued to execute.
First outlet 13b can be in the front opening of third outlet 13a closing, and first outlet 13a and third export 13c
It can open together.When opening lasting while can adjusting first outlet 13a and third outlet 13b based on second predetermined value
Between, to adjust the amount for the molten iron being stored in blast furnace 11.Therefore, the discharge of molten iron S and the surface of molten iron S can be continued to execute
The determination of height.However, the number of outlet and the opening and closing sequence of outlet are without being limited thereto, and can change.
In addition, in the case where outlet 13 includes multiple outlets induced electromotive force can be measured to each outlet.It can make
One outlet 13 is determined with the induced electromotive force to each outlet measurement, and determining outlet 13 can be determined maximum
Value.
For example, the one outlet in the multiple outlet 13 is opened and closes and when molten iron S is moved horizontally, it is located at
The measuring instrument 111 and the measuring instrument 111 above another outlet 13 of 13 top of outlet of opening can measure sense
Answer electromotive force.Therefore, induced electromotive force can be measured at multiple positions.However, the opening in the multiple outlet 13
And the induced electromotive force for the exit measurement closed can be bigger than the induced electromotive force measured at other positions.Therefore, at it
The induced electromotive force measured at his position can be treated as noise, and can determine above the outlet 13 opened and closed
Maximum value in the induced electromotive force of measurement, to determine the apparent height of molten iron S.
Alternatively, outlet 13 include multiple outlets in the case where, can it is the multiple outlet 13 in opening or
Induced electromotive force is measured at the outlet 13 of closing.That is, can be only by the survey for 13 top of outlet for being located at opening and closing
Measuring appratus 111 measures induced electromotive force, and will not measure induction electric by the measuring instrument 111 for being located at other 13 tops of outlet
Gesture.Therefore, can at desired position precise measurement molten iron S apparent height.Therefore, it is measured at the multiple position
Value can not be handled all simultaneously, to prevent the apparent height of measurement inaccuracy.
Once having determined the apparent height of molten iron S, so that it may by determining height value and predetermined vertical height range into
Row compares.When determining height value is when except scheduled vertical height value, the amount of the adjustable molten metal to be discharged.?
That is, it is possible to adjust the opening time of outlet 13 to adjust the amount of the molten iron S discharged from blast furnace 11.
For example, the opening duration for increasing each outlet can greatly increase the molten metal S's discharged from blast furnace 11
Amount, and the opening duration for reducing each outlet 13 can slightly reduce the amount of the molten metal S discharged from blast furnace 11.Cause
This, can be suitably adjusted the apparent height of the molten iron S in blast furnace 11.
Alternatively, the opening duration of the multiple outlet 13 can overlap each other.It is adjustable it is the multiple go out
The duration is opened while mouth 13.Increase therefore, because opening the duration while the multiple outlet 13, from blast furnace 11
The amount of the molten iron S of discharge increases, and the apparent height of molten iron S is greatly reduced.Due to being beaten while the multiple outlet
Duration reduction is opened, the amount of the molten iron S discharged from blast furnace 11 is reduced, and the apparent height of molten iron S is slightly reduced.
Therefore, it when the discharge for the molten iron being stored in blast furnace 11 stops, being measured based on vertical height by molten iron S's
Induced electromotive force caused by horizontal movement.Therefore, it is possible to use the surface that the induced electromotive force of measurement accurately measures molten iron S is high
Degree.
In addition, due to can accurately measure the apparent height of molten iron S, thus may determine that the amount for the molten iron S to be discharged,
So that storing the molten iron S of appropriate amount in blast furnace 11.Therefore, the discharge of molten iron S can be executed steadily suitably to keep blast furnace
The amount of molten iron S in 11.Therefore, it can inhibit or prevent the increase of the blast pressure in blast furnace 11, the generation of channel or molten iron S
To the adverse current in air port 12.
Although the disclosure is described referring to particular implementation, in spirit and scope of the present disclosure
Various remodeling can be made to the disclosure.Therefore, the scope of the present disclosure should not necessarily be limited by described embodiment, but should be by institute
The equivalent program of attached claim and appended claims determines.
Claims (18)
1. a kind of equipment, the equipment is used to measure the apparent height for the molten metal being contained in the container with outlet, institute
Stating equipment includes:
Measuring unit, the measuring unit are mounted to measure the fortune by the molten metal based on vertical height on the container
Induced electromotive force caused by dynamic；And
Processing unit, the processing unit are configured with based on the value of the induced electromotive force of vertical height measurement and determine
The apparent height of the molten metal.
2. equipment according to claim 1, wherein the measuring unit includes the multiple measuring instruments being arranged in the vertical direction
Device.
3. equipment according to claim 2, wherein the air port of supply hot wind is defined in the above-described container, and
Wherein, the multiple measuring instrument is arranged between the outlet and the air port.
4. equipment according to claim 1, wherein the outlet includes multiple outlets, and
Wherein, the measuring unit includes multiple measuring instruments, and the multiple measuring instrument is correspondingly installed for the multiple
Outlet.
5. equipment according to claim 1, wherein the processing unit includes:
Processor, the processor are configured to determine the maximum value in the value of the induced electromotive force measured based on vertical height
And select the apparent height of the vertical height corresponding to the maximum value as the molten metal.
6. equipment according to claim 5, further includes:
Control unit, described control unit are connected to the processing unit to control the opening and closing of the outlet.
7. equipment according to claim 6, wherein described control unit includes:
Comparator, the comparator arrangement is at the vertical height and predetermined vertical height that will correspond to the maximum induced electromotive force
Range is compared；And
Controller, described in the controller is configured to adjust when except the predetermined vertical height range when the vertical height
The opening duration of outlet.
8. equipment according to claim 7, wherein the outlet includes multiple outlets, and
Wherein, the duration is opened while the controller controls the multiple outlet.
9. a kind of method for measuring the apparent height of the molten metal inside container, which comprises
Open the outlet limited in the above-described container；
Discharge the molten metal inside the container；
Close the outlet；
The induced electromotive force generated based on vertical height measurement by the movement of the molten metal；And
The apparent height of the molten metal is obtained using the measured induced electromotive force.
10. according to the method described in claim 9, wherein, showing that the apparent height of the molten metal includes:
Determine the maximum value in the value of the induced electromotive force measured based on vertical height；And
Select the apparent height of the vertical height corresponding to the maximum value as the molten metal.
11. the outlet includes multiple outlets according to the method described in claim 10, wherein, and
Wherein, measuring the induced electromotive force based on vertical height includes measuring each respective induced electromotive force in outlet.
12. according to the method for claim 11, wherein determine the value of the induced electromotive force measured based on vertical height
In the maximum value include:
One outlet is determined using the measured respective induced electromotive force in each outlet, and for identified outlet
Determine the maximum value.
13. the outlet includes multiple outlets according to the method described in claim 10, wherein, and
Wherein, measuring the induced electromotive force based on vertical height includes for being opened in the multiple outlet and closing
Outlet measures the induced electromotive force.
14. method described in any one of 1 to 13 according to claim 1, further includes:
After obtaining the apparent height of the molten metal, the height value obtained and predetermined vertical height range are carried out
Compare；And
When the vertical height obtained is when except the predetermined altitude range, the amount for the molten metal to be discharged is adjusted.
15. according to the method for claim 14, wherein the amount for adjusting the molten metal to be discharged includes described in adjusting
The opening duration of outlet.
16. according to the method for claim 15, wherein the opening duration of the multiple outlet overlaps each other, and
Wherein, the opening duration for adjusting the outlet includes the opening duration or described more for adjusting each outlet
At least one of duration is opened while a outlet.
17. the method according to any one of claim 9 to 13, wherein measure the induced electricity based on vertical height
Kinetic potential includes sequentially and vertically upward measuring the induced electromotive force.
18. the method according to any one of claim 9 to 13, wherein the container includes blast furnace or FINEX molten
Furnace, and wherein, the molten metal includes molten iron.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0157450 | 2016-11-24 | ||
| KR1020160157450A KR101839841B1 (en) | 2016-11-24 | 2016-11-24 | Apparatus and Method for measuring molten steel height |
| PCT/KR2017/012307 WO2018097499A1 (en) | 2016-11-24 | 2017-11-02 | Device and method for measuring surface level of molten metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110023515A true CN110023515A (en) | 2019-07-16 |
Family
ID=61911183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780072952.6A Pending CN110023515A (en) | 2016-11-24 | 2017-11-02 | For measuring the device and method of the apparent height of molten metal |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3546600A1 (en) |
| JP (1) | JP2019535995A (en) |
| KR (1) | KR101839841B1 (en) |
| CN (1) | CN110023515A (en) |
| WO (1) | WO2018097499A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414130A (en) * | 2020-12-17 | 2021-02-26 | 镇江龙源铝业有限公司 | Control system of aluminum melting furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7485247B1 (en) | 2023-01-12 | 2024-05-16 | Ｊｆｅスチール株式会社 | METHOD FOR DETECTING MELT HEIGHT, DEVICE FOR DETECTING MELT HEIGHT, AND MELT PRODUCTION METHOD |
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| JPH11304566A (en) * | 1998-04-15 | 1999-11-05 | Nippon Steel Corp | Method and device for detecting level of molten steel in immersion nozzle of continuous casting |
| KR20010019977A (en) * | 1999-08-31 | 2001-03-15 | 이구택 | Apparatus for measuring liquid level of blast furnace |
| JP2006176849A (en) * | 2004-12-24 | 2006-07-06 | Jfe Steel Kk | Method and unit for measuring molten material surface level in blast furnace |
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| KR20090067891A (en) * | 2007-12-21 | 2009-06-25 | 주식회사 포스코 | Apparatus for detecting level of molteniron |
| KR20100071350A (en) * | 2008-12-19 | 2010-06-29 | 재단법인 포항산업과학연구원 | Apparatus for measuring liquid level of blast furnace using induction coil |
| CN102884388A (en) * | 2010-04-26 | 2013-01-16 | 哈茨有限公司 | Measurement of charge bank level in a metallurgical furnace |
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| JP2008266669A (en) * | 2007-04-16 | 2008-11-06 | Jfe Steel Kk | Method and instrument for measuring molten material level in shaft-furnace |
| KR101571857B1 (en) | 2008-12-19 | 2015-11-26 | 재단법인 포항산업과학연구원 | Apparatus and Method for measuring liquid level of blast furnace |
-
2016
- 2016-11-24 KR KR1020160157450A patent/KR101839841B1/en active IP Right Grant
-
2017
- 2017-11-02 JP JP2019527565A patent/JP2019535995A/en active Pending
- 2017-11-02 CN CN201780072952.6A patent/CN110023515A/en active Pending
- 2017-11-02 EP EP17873765.6A patent/EP3546600A1/en not_active Withdrawn
- 2017-11-02 WO PCT/KR2017/012307 patent/WO2018097499A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11304566A (en) * | 1998-04-15 | 1999-11-05 | Nippon Steel Corp | Method and device for detecting level of molten steel in immersion nozzle of continuous casting |
| KR20010019977A (en) * | 1999-08-31 | 2001-03-15 | 이구택 | Apparatus for measuring liquid level of blast furnace |
| JP2006176849A (en) * | 2004-12-24 | 2006-07-06 | Jfe Steel Kk | Method and unit for measuring molten material surface level in blast furnace |
| JP2008163399A (en) * | 2006-12-28 | 2008-07-17 | Denka Consult & Eng Co Ltd | Curing device for agglomerated fine powder |
| KR20090067891A (en) * | 2007-12-21 | 2009-06-25 | 주식회사 포스코 | Apparatus for detecting level of molteniron |
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| CN102884388A (en) * | 2010-04-26 | 2013-01-16 | 哈茨有限公司 | Measurement of charge bank level in a metallurgical furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414130A (en) * | 2020-12-17 | 2021-02-26 | 镇江龙源铝业有限公司 | Control system of aluminum melting furnace |
| CN112414130B (en) * | 2020-12-17 | 2024-01-23 | 镇江龙源铝业有限公司 | Aluminum melting furnace control system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3546600A4 (en) | 2019-10-02 |
| EP3546600A1 (en) | 2019-10-02 |
| WO2018097499A1 (en) | 2018-05-31 |
| JP2019535995A (en) | 2019-12-12 |
| KR101839841B1 (en) | 2018-03-19 |
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