KR20170036895A - A blast burnace slag flow rate measuring system - Google Patents

A blast burnace slag flow rate measuring system Download PDF

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Publication number
KR20170036895A
KR20170036895A KR1020150135212A KR20150135212A KR20170036895A KR 20170036895 A KR20170036895 A KR 20170036895A KR 1020150135212 A KR1020150135212 A KR 1020150135212A KR 20150135212 A KR20150135212 A KR 20150135212A KR 20170036895 A KR20170036895 A KR 20170036895A
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South Korea
Prior art keywords
slag
flow
dust
gas
flow rate
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KR1020150135212A
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Korean (ko)
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KR101769477B1 (en
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이상열
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주식회사 후상
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/74—Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
    • G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only

Abstract

The present invention relates to a blast furnace slag flow rate measuring system and, more specifically, relates to a blast furnace slag flow rate measuring system capable of calculating a flow rate of slag discharged from a blast furnace. According to the present invention, the blast furnace slag flow rate is installed in a flow path in which the slag discharged from the blast furnace flows. The blast furnace slag includes a moving path which the slag passes through. The moving path comprises: a slag moving block having a fixated area in a longitudinal direction; a measurement unit installed to be spaced from a surface of the slag passing through the slag moving block to an upper side, wherein the measurement unit measures a flow speed and a cross section of the slag passing through the slag moving block; a calculation unit calculating the flow rate of the slag passing through the slag moving block using information on the section area and the flow speed of the slag measured by the measuring unit; and a correction unit discharging gas or dust stayed in a space between the measurement unit and the slag passing through the slag moving block, to the outside.

Description

[0001] The present invention relates to a blast burner slag flow rate measuring system,

The present invention relates to a blast furnace slag flow measurement system, and more particularly, to a blast furnace slag flow measurement system capable of calculating a flow rate of slag discharged from a blast furnace.

Generally, a blast furnace is a furnace that produces cast iron in iron ore. The molten slag produced in the furnace and the molten slag at a high temperature (1500 ° C) are continuously discharged out of the furnace through the flow path.

In the above-mentioned opening work, the charcoal and the slag divided by the specific gravity difference are separated through the skimmer. POSCO can not measure the discharge flow rate of slag because the charcoal is transferred to the TLC weigher to check the discharge flow rate. Currently, POSCO is using the truck scale to measure the discharge rate in unloading the slag from the bottom of the hopper. And a method of calculating the amount of the raw material depending on the quality of the sinter ore to confirm the estimated discharge flow rate.

However, the conventional measurement method has a problem that it is difficult to accurately confirm the production amount of slag since it is measured in a state where a large amount of water is sprayed for cooling the slag during the wastewater treatment.

In addition, the method of measuring by truck scale does not measure the weight of all vehicles, but measures the weight of some vehicles and measures them as representative weight.

In addition, in the method of measuring the discharge flow rate of slag using the sintering light quality, since the value of the representative sample is measured, it is dependent on the calculation value with respect to the amount of the blast furnace feedstock, so that there is a problem that the accuracy is low.

The method of measuring the discharge flow rate of such conventional slag can not accurately measure the discharge flow rate of the slag as described above. Therefore, when the discharge delay of the slag is mistaken by the operator, There arises a problem that the slag flows backward with the tuyere.

(Reference Document 0001) Korean Patent Publication No. 10-2005-0063502

It is an object of the present invention to provide a blast furnace slag flow measurement system capable of accurately calculating a flow rate of slag discharged from a blast furnace.

According to an aspect of the present invention, there is provided a blast furnace slag flow measuring system, comprising: a slag flow path for flowing slag discharged from a blast furnace, A slag flow block having a constant sectional area along the slag flow block; A measuring unit installed on the upper side of the slag passing through the slag flow block to measure the cross-sectional area and the flow rate of the slag passing through the slag flow block; A calculator capable of calculating a flow rate of the slag passing through the slag flow block through the cross-sectional area and the flow rate information of the slag measured by the measuring unit; And a correcting part capable of discharging gas or dust staying in the space between the slag and the measuring part passing through the slag flow block to the outside.

The slag flow block is provided with a cooling passage through which cooling water can flow to prevent the flow passage from being deformed by heat generated in the slag, And a cooling water supply unit.

A gas sensor and a dust sensor installed at a position adjacent to the space between the slag and the measurement unit and measuring an amount of the gas and dust staying in the space; An ejector installed in the flow block of the slag and capable of forcibly transferring the gas and dust staying in the interspace to the outside; A controller capable of operating the ejector when the amount of the gas and dust measured by the gas sensor and the dust sensor exceeds a predetermined amount; And an alarm capable of generating a warning sound to the manager when the amount of the gas and dust measured by the gas sensor and the dust sensor exceeds a preset amount by the control unit.

The discharge unit is installed in the slag flow block so that one side thereof is located in the interspace, and a discharge flow path through which the gas and dust flow is formed inside. The inlet and the outlet, through which the gas and dust can flow into the discharge flow path, And a discharge port through which the gas flowing in the discharge passage and the dust can be discharged to the outside; A vacuum pump installed in the main body and generating a suction force so that gas and dust in the interspace are sucked into the discharge passage; And a discharge sensor installed in the main body and measuring an amount of the gas and dust passing through the discharge passage, wherein the control unit controls the amount of the gas and the dust measured from the discharge sensor when the vacuum pump is operated, If it is less than the set amount, it is determined that a defect is generated in the vacuum pump, and a warning sound is generated to the manager through the alarm.

Wherein the measuring unit includes a distance sensor which is provided in a direction perpendicular to the surface of the slag passing through the slug flow block and measures a distance from the slug surface, A slag cross-sectional area measuring device having an auxiliary calculation part capable of calculating a cross-sectional area of the slag through a slope; And a slag flow velocity measuring device installed in the slag flow block for measuring a surface velocity of the slag passing through the slag flow block.

The present invention further includes a display unit capable of displaying the cross-sectional area and flow rate of the slag measured by the measuring unit, the flow rate of the slag calculated by the calculating unit, and the operating state of the measuring unit and the calculating unit.

The blast furnace slag flow measurement system of the present invention can accurately calculate the cross-sectional area of a slag by providing a slag flow block having a constant cross-sectional area, and can accurately calculate the flow rate of slag discharged from the blast furnace by discharging gas and dust around the slag to the outside Can be calculated.

1 is a perspective view of a blast furnace slag flow measurement system of the present invention,
FIG. 2 is a sectional view showing the slag flow block of the blast furnace slag flow measurement system of FIG. 1,
3 is a perspective view showing a cooling water flow chart of the slag flow block of the blast furnace slag flow measurement system of FIG.

Hereinafter, a blast furnace slag flow measurement system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

An embodiment of the blast furnace slag flow measurement system according to the present invention is shown in Figs.

1 to 3, the blast furnace slag flow measurement system according to the present invention includes a slag flow block 10 installed on a flow path 18 through which slag discharged from a blast furnace flows, a slag flow block 10 installed on the slag flow block 10, A calculator 30 for calculating the flow rate of the slag through the information measured by the measuring unit 20 and a calculating unit 30 for calculating the flow rate of the slag through the slag and the measuring unit 20, And a correction unit (40) capable of discharging the gas and dust staying in the space (25) between them.

The slag flow block 10 is formed with a flow passage 11 through which the slag can pass and the flow passage 11 is formed to communicate with the flow passage 18 and has a constant cross sectional area along the longitudinal direction. Further, the flow path 11 is formed so that the upper portion thereof is opened.

The slag flow block 10 is formed with a cooling passage 12 through which cooling water can flow to prevent the flow path 11 from being deformed by the heat generated in the slag as shown in FIG.

The slag flow block 10 is provided with an inlet 13 for allowing cooling water to flow into one side and an outlet 13 for discharging cooling water having passed through the cooling passage 12 for cooling the slag flow block 10, (14) are formed. The slag flow block 10 is installed by cutting a part of the flow path 18 and inserting it into the removed part.

At this time, it is preferable that the cooling water uses fresh water and recycled water (including salt and impurities), and the slag flow block 10 is made of copper so that corrosion is not caused by the cooling water. The slag flow block 10 is preferably coated with ferro-chrome (Fe-Cr) so that the slag flow block 10 has less damage and thermal deformation due to thermal shock and is not eroded or dissolved by slag and charcoal.

The connection pipe 16 and the discharge pipe 19 are preferably made of stainless steel having excellent corrosion resistance.

In the meantime, the blast furnace slag flow measurement system according to the present invention further includes a cooling water supply unit for supplying cooling water to the cooling channel 12 of the slag flow block 10.

The cooling water supply unit includes a storage tank 15 capable of storing cooling water therein, a connection pipe 16 connecting the storage tank 15 and the cooling flow path 12 of the slag flow block 10, A pump 17 for pumping cooling water stored in the storage tank 15 into the cooling channel 12 and a discharge pipe 19 connected to the slag flow block 10 at one end and connected to the storage tank 15 at the other end, And a cooler 17 for cooling the superheated cooling water passing through the discharge pipe 19.

The connection pipe 16 is connected to the inlet 13 of the slag flow block 10 so that one end thereof is connected to the storage tank 15 and the other end is connected to the cooling flow passage 12. The cooling water that has passed through the cooling channel 12 of the slag flow block 10 and overheated by the heat of the slag is discharged to the discharge pipe 19 through the discharge port 14 and the superheated cooling water passing through the discharge pipe 19 is discharged to the cooler (17) and flows into the storage tank (15).

The measuring unit 20 may be installed upwardly to the surface of the slag passing through the slag flow block 10 to measure the cross-sectional area and flow rate of the slag passing through the slag flow block 10. The measuring unit 20 includes a slag cross-sectional area measuring device 21 capable of measuring the cross-sectional area of the slag and a slag flow velocity measuring device 22 capable of measuring the flow rate of the slag.

The slag cross sectional area measuring device 21 is supported by the first supporting unit 28 and is provided so as to be spaced apart from the surface of the slag passing through the slag flow block 10 in the orthogonal direction, And an auxiliary calculation section 27 capable of calculating the cross-sectional area of the slag through the distance information between the distance sensor 23 measured by the distance sensor 23 and the slag surface measured by the distance sensor 23.

The first support unit 28 includes a plurality of first support legs 28a formed upwardly on the upper surface of the slag flow block 10 and a plurality of second support legs 28b extending upward from the first base member 28a, And a connection shaft 28c provided on the first base member 28b and extending in the center direction of the flow path 11 and provided with a distance sensor 23 at an end thereof.

 The distance sensor 23 transmits ultrasound to the surface of the slag passing through the slag flow block 10 in a direction orthogonal to the slag surface or emits a laser and counts the time until reflection by the surface of the slag and returns The separation distance from the slag surface can be measured. At this time, the frequency range of the ultrasonic wave to be used or the range of the wavelength of the laser is not particularly limited, and can be selected according to the precision by a person skilled in the art.

The slag flow measuring device 22 is supported by the second support unit 29 and is installed in the slag flow block 10 opposite to the slag cross sectional area measuring device 21, Can be measured.

The second support unit 29 includes a plurality of second support legs 29a formed upwardly on the upper surface of the slag flow block 10 and a second base member 29b provided on the upper end of the second support legs 29a. And a connecting member 29c connected to the upper end of the second base member 29b so that the slag flow velocity measuring device 22 is rotatable in the vertical direction.

The slag flow velocity measuring device 22 includes a flow velocity measurement method using an ultrasonic wave to measure the flow velocity of slag flowing by receiving ultrasonic waves reflected on the surface of the slag passing through the slug flow block 10, A flow rate measurement method using a laser for measuring the flow velocity of the slag, and a flow rate measurement method using a camera for continuously measuring the surface velocity of the slag by photographing the slag passing through the slag flow block 10.

Such flow velocity measurement methods are obvious to those skilled in the art, so detailed description thereof will be omitted. The slag flow velocity measuring device 22 may be applied to various methods other than the above-described method of measuring the surface velocity of the slag.

Although not shown in the drawing, the measuring unit 20 is installed in the slag cross-sectional area measuring device 21 and the slag flow velocity measuring device 22, respectively, so as to prevent thermal damage due to heat generated in the slag, A plurality of cooling devices for cooling the slag flow rate measuring device 22 and the slag flow rate measuring device 22 and the plurality of cooling devices for cooling the slag flow rate measuring device 21 and the slag flow velocity measuring device 22, It is preferable to provide a ventilator for circulation.

The calculation unit 30 can calculate the flow rate of the slag passing through the slag flow block 10 through the cross-sectional area and the flow rate information of the slag measured by the measuring unit 20. [ That is, the calculating unit 30 can calculate the flow rate of the slag by multiplying the cross-sectional area of the slag calculated by the slag cross-sectional area measuring device 21 by the slag surface flow rate measured by the slag flow velocity measuring device 22. [

The calculating unit 30 calculates the slag information through the network communication network so that the managers can share the information such as the cross-sectional area, the flow rate, and the flow rate of the slag with the information on the operating state of the measuring unit 20 and the calculating unit 30, Or a transfer unit 32 for transferring the data to the management server.

Meanwhile, the blast furnace slag flow measurement system according to the present invention further includes a display unit 31 capable of displaying the calculated flow rate of the slag.

The display unit 31 displays the cross-sectional area and flow rate of the slag measured by the measuring unit 20, the flow rate of the slag calculated by the calculating unit 30, and the operating state of the measuring unit 20 and the calculating unit 30. The display unit 31 may be an LCD monitor, a notebook computer, a tablet PC, or the like.

The correction section 40 can discharge the gas or dust staying in the slag passing through the slag flow block 10 and the space 25 between the measurement section 20 to the outside. The correction unit 40 includes a gas sensor 41, a dust sensor 42, an ejector 50, a control unit 43, and an alarm 44.

The gas sensor 41 is installed at a position adjacent to the interspace 25 to measure the amount of gas staying in the interspace 25. The gas sensor 41 detects a specific chemical substance contained in the gas, converts the concentration into an electrical signal, and outputs the electrical signal. The gas sensor 41 is a semiconductor sensor, a ceramic sensor, a piezoelectric sensor A gas sensor 41 may be used.

The dust sensor 42 is installed at an adjacent position of the interspace 25 to measure the amount of dust staying in the interspace 25. The dust sensor 42 is a device for detecting the number of minute dusts or condensation nucleus floating on the slag flow block 10 and includes a light emitting portion 42a provided on the upper surface of the slag flow block 10 and capable of irradiating light to the space 25, A light receiving portion 42b disposed on the upper surface of the slag flow block 10 so as to face the light emitting portion 42a on the basis of the flow path 11 and detecting light emitted from the light emitting portion 42a, (Not shown) for calculating the amount of dust on the basis of the detected amount of light measured through the photodetector.

However, the dust sensor 42 is not limited to this, and any means capable of detecting the amount of dust in the interspace 25 is possible.

The discharge unit 50 is installed in the flow block 10 of the slag to forcefully transfer the gas and dust staying in the interspace 25 to the outside. The ejector 50 includes a main body 51, a vacuum pump 56, and a discharge sensor 58.

The main body 51 is installed in the slag flow block 10 so that one side thereof is located in the interspace 25 and a discharge flow path 53 through which gas and dust flow is formed therein. The main body 51 has an inlet 54 formed at one side thereof so that gas and dust can flow into the discharge flow path 53. The main body 51 has a discharge port 55 formed at the other side so that gas and dust flowing in the discharge flow path 53 can be discharged to the outside.

The vacuum pump 56 is installed in the main body 51 and includes a driving motor (not shown) for generating a suction force to the discharge passage 54 so as to suck gas and dust staying in the interspace 25, . And an impeller 59 formed in a drive shaft (not shown) connected to the drive motor.

The ejector 50 discharges the gas and the dust staying in the interspace 25 due to the suction force generated in the vacuum pump 56 to the outside of the interspace 25.

The discharge sensor 58 is installed in the main body 51 to measure the flow rate of the air passing through the discharge passage 53.

The alarm 44 is a signal for causing the controller 43 to control the amount of gas and dust measured by the gas sensor 41 and the dust sensor 42 to exceed a predetermined amount, If the flow rate of the measured air is less than the predetermined amount, the alarm sounds to the manager.

The control unit 43 operates the ejector 50 to stop the gas and dust staying in the interspace 25 when the amount of gas and dust measured by the gas sensor 41 and the dust sensor 42 exceeds a predetermined amount And is discharged to the outside of the space 25.

The control unit 43 is connected to the discharge sensor 58 so that when the flow rate of the air measured from the discharge sensor 58 in operation of the vacuum pump 56 is less than a predetermined amount, And the alarm 44 is operated.

The operation of the embodiment of the blast furnace slag flow measuring system according to the present invention constructed as described above will be described with reference to Figs. 1 to 3. Fig.

First, in the measuring section 20, the cross-sectional area of the slag passing through the slag flow block 10 is calculated, and the surface flow rate of the slag is measured. Then, the measuring unit 20 transmits the measured cross-sectional area and flow rate information of the slag to the calculating unit 30.

The calculation unit 30 receives the cross-sectional area and the flow rate information of the slag and calculates the flow rate of the slag passing through the slag flow block 10 by multiplying the cross-sectional area of the slag with the flow rate, and displays information such as the cross- (31) and the transmission unit (32).

Next, the control unit 43 receives information on the amount of gas and dust staying in the space 25 between the slag measured by the gas sensor 41 and the dust sensor 42 and the measuring unit 20.

When the amount of the gas and the dust exceeds the predetermined amount, the controller 43 receives the information about the amount of the gas and the dust staying in the interspace 20, and activates the alarm 44 to alert the manager of the amount of gas and dust, , The ejector 50 is operated to discharge the gas and dust staying in the interspace 25 to the outside of the interspace 25 so that the amount of gas and dust staying in the interspace 25 does not exceed a predetermined amount Limit.

Therefore, the correction unit 40 limits the amount of the gas and dust staying in the interspace 25 through the discharge unit 50 so as not to exceed a preset amount, thereby reducing the distance to the surface of the slag from the measurement unit 20 So that the flow velocity can be measured more accurately.

The control unit 43 receives information on the flow rate of the air on the discharge flow path 53 measured by the discharge sensor 58 of the discharge unit 50 when the vacuum pump 56 operates, If it is less than the set amount, it is determined that a defect is generated in the vacuum pump 56, and the alarm 44 is activated to alert the manager to a warning sound.

As described above, the blast furnace slag flow measurement system of the present invention can accurately calculate the cross-sectional area of the slag by providing a slag flow block having a constant cross-sectional area, and discharge the gas and dust around the slag to the outside, It is possible to calculate the flow rate of the slag.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: slag flow block
20:
30:
40:
50: ejector

Claims (6)

A slag flow block formed on the flow path through which the slag discharged from the blast furnace flows; a slag flow block having a constant cross-sectional area along the longitudinal direction;
A measuring unit installed on the upper side of the slag passing through the slag flow block to measure the cross-sectional area and the flow rate of the slag passing through the slag flow block;
A calculator capable of calculating a flow rate of the slag passing through the slag flow block through the cross-sectional area and the flow rate information of the slag measured by the measuring unit;
And a correcting unit capable of discharging the gas or dust staying in the space between the slag and the measuring unit passing through the slag flow block to the outside. 2. A method according to claim 1, wherein the slag flow block
And a cooling water supply unit installed in the slag flow block for supplying cooling water to the cooling channel, wherein the cooling channel includes a cooling channel through which cooling water can flow to prevent the flow path from being deformed by heat generated in the slag, And the flow rate of the slag is measured. The apparatus of claim 1, wherein the correction unit
A gas sensor and a dust sensor installed at a position adjacent to the space between the slag and the measurement unit to measure the amount of the gas and the dust staying in the space;
An ejector installed in the flow block of the slag and capable of forcibly transferring the gas and dust staying in the interspace to the outside;
A controller capable of operating the ejector when the amount of the gas and dust measured by the gas sensor and the dust sensor exceeds a predetermined amount;
And an alarm capable of generating a warning sound to the manager when the amount of the gas and dust measured by the gas sensor and the dust sensor exceeds a predetermined amount by the control unit. 4. The apparatus of claim 3, wherein the ejector
An exhaust channel formed in the slag flow block so that one side thereof is located within the interspace and through which the gas and dust flow, and an inlet port through which the gas and dust can flow into the discharge channel, And a discharge port through which the gas flowing in the discharge passage and the dust can be discharged to the outside;
A vacuum pump installed in the main body and generating a suction force so that gas and dust in the interspace are sucked into the discharge passage;
And a discharge sensor installed in the main body for measuring an amount of the gas and dust passing through the discharge passage,
Wherein the control unit determines that a defect is generated in the vacuum pump when the amount of the gas and dust measured from the discharge sensor is less than a predetermined amount when the vacuum pump operates, And the flow rate of the slag is measured. 5. The apparatus of claim 4, wherein the measuring unit
A distance sensor which is provided in a direction perpendicular to a surface of the slag passing through the slag flow block and measures a distance between the slag surface and the slag surface; A slag cross sectional area measuring device having an auxiliary calculating section capable of calculating the cross sectional area of the slag;
And a slag flow rate measuring device installed in the slag flow block for measuring a surface flow velocity of the slag passing through the slag flow block. 6. The method of claim 5,
Further comprising a display unit capable of displaying a cross-sectional area and a flow rate of the slag measured by the measuring unit, a flow rate of the slag calculated in the calculating unit, and an operating state of the measuring unit and the calculating unit, Flow measurement system.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109825657A (en) * 2019-04-03 2019-05-31 中冶赛迪工程技术股份有限公司 Blast furnace cinder slag discharge amount on-line measuring device and method
CN115074472A (en) * 2022-07-07 2022-09-20 广东韶钢松山股份有限公司 Blast furnace slag pump control method and device and blast furnace slag treatment system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109825657A (en) * 2019-04-03 2019-05-31 中冶赛迪工程技术股份有限公司 Blast furnace cinder slag discharge amount on-line measuring device and method
CN115074472A (en) * 2022-07-07 2022-09-20 广东韶钢松山股份有限公司 Blast furnace slag pump control method and device and blast furnace slag treatment system

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