KR101220798B1 - Apparatus for measuring stave's thickness of furnace and method of measuring stave's thickness using the same - Google Patents

Abstract

Device for measuring the thickness of the blast furnace blast furnace according to an embodiment of the present invention is provided with a blast furnace for cooling and protecting the furnace body of the blast furnace; And at least one ultrasonic sensor embedded in the stave and configured to measure the thickness of the stave by transmitting ultrasonic waves to the stave and receiving reflected ultrasonic waves.

Description

Apparatus for measuring stave's thickness of furnace and method of measuring stave's thickness using the same}

The present invention relates to an apparatus and method for measuring the thickness of a blast furnace, and more particularly, to an apparatus and method for measuring the thickness of a blast furnace for detecting the remaining thickness and wear of the stave provided in the blast furnace.

In the steel industry, blast furnaces are charged with iron ore, which is the main raw material, and coal, which is a fuel, in the form of sintered ore and coke, and is a facility for producing iron oxide in the molten state, that is, molten iron, through a reduction reaction.

At this time, a high temperature hot air is supplied into the blast furnace for the reduction reaction, and the molten iron produced is accumulated in the bottom of the blast furnace.

When the molten iron stored in the furnace accumulates in a predetermined amount or more, the molten iron is periodically discharged from the outlet located at the upper end of the furnace under the tuyere for supplying hot air to be supplied to the steelmaking process.

On the other hand, since the height of the sintered ore and the coke is gradually lowered in the furnace, which is the upper part of the blast furnace through the molten iron manufacturing process by the reduction reaction, the sintered ore and coke are continuously supplied sequentially and the supplied fuel naturally descends.

Here, the blast furnace includes a cooling mechanism inside the shell, which is an outer wall of the blast furnace, in order to protect the furnace body from the descending fuel, raw materials, high temperature hot air and reaction heat.

Conventionally, such a cooling mechanism uses a cooling panel inserted vertically into the steel shell surface of the blast furnace, but gradually increasing the cooling efficiency is a trend.

However, the stave may cause damage that accelerates abrasion in the operation of the high lead-out ratio and damages the cooling water pipe inside the stave, which causes the problem that the coolant flows into the blast furnace and lowers the temperature inside the blast furnace. .

Therefore, it is urgent to research to improve the productivity and performance of the blast furnace by measuring the thickness of the stave and extracting the degree of wear to prevent breakage of the stave to prevent the coolant from leaking into the blast furnace.

An object of the present invention relates to an apparatus and method for measuring the thickness of a blast furnace to measure the thickness of the stave in real time and periodically, and to extract the degree of wear to prevent cooling water outflow into the blast furnace.

Device for measuring the thickness of the blast furnace blast furnace according to an embodiment of the present invention is provided with a blast furnace for cooling and protecting the furnace body of the blast furnace; And at least one ultrasonic sensor embedded in the stave and configured to measure the thickness of the stave by transmitting ultrasonic waves to the stave and receiving reflected ultrasonic waves.

The stave of the apparatus for measuring the thickness of the blast furnace blast furnace according to an embodiment of the present invention has at least one cooling pipe disposed inside the steel bar forming the outer surface of the blast furnace, the ultrasonic sensor is the cooling pipe It can be placed inside of.

The ultrasonic sensor of the stave thickness measurement apparatus of the blast furnace according to an embodiment of the present invention may be disposed between one end of the cooling pipe and the water supply pipe or between the other end of the cooling pipe and the drain pipe.

At least a portion of an outer surface of the ultrasonic sensor of the apparatus for measuring the thickness of the blast furnace blast furnace according to an embodiment of the present invention may have the same radius of curvature as the inner surface of the cooling pipe to be in close contact with the inner surface of the cooling pipe.

The ultrasonic sensor of the device for measuring the thickness of the blast furnace blast furnace according to an embodiment of the present invention includes a sensing unit for transmitting the ultrasonic wave and receiving the reflected ultrasonic wave and a support portion coupled to the elastic member to support the sensing unit, At least one of the sensing unit and the support unit may be in close contact with the inner surface of the cooling pipe by the elastic force of the elastic member.

  The cooling pipe of the apparatus for measuring the thickness of the blast furnace of the blast furnace according to an embodiment of the present invention is in communication with the water supply pipe and the drain pipe through which the coolant flows in and out, and the ultrasonic sensor is used to fix the ultrasonic sensor to the cooling pipe. It may be provided with an elastic member coupled to the sensor and in close contact with the inner surface of the water supply pipe or the drain pipe.

The apparatus for measuring the thickness of a blast furnace blast furnace according to an embodiment of the present invention may further include an ultrasonic multiplex electrically connected to the ultrasonic sensor to simultaneously measure the thickness of the stave of multiple points by the ultrasonic sensor. Can be.

An apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention calculates the thickness of the stave using the ultrasonic data periodically connected by the ultrasonic sensor, which is electrically connected to the ultrasonic sensor, and the data is calculated. Comprising a base unit to extract the wear rate of the stave; may further include a.

According to another aspect of the present invention, there is provided a method for measuring the thickness of a blast furnace, including: embedding an ultrasonic sensor in a cooling pipe formed in a stave for cooling and protecting a furnace body of the blast furnace; Detecting a waveform for measuring the thickness of the stave through ultrasonic waves transmitted and received by the ultrasonic sensor; And measuring the thickness of the stave by analyzing the detected waveform.

Measuring the thickness of the stave of the stave thickness measurement method of the blast furnace according to another embodiment of the present invention is the thickness of the stave by using the sound speed and the transmitted and received time difference of the ultrasonic wave inside the stave Can be measured.

The method for measuring the thickness of the blast furnace blast furnace according to another embodiment of the present invention may further include the step of periodically measuring the thickness of the stave and extracting the wear rate of the stave by making a database thereof.

According to the apparatus and method for measuring the thickness of the blast furnace according to the present invention, since the thickness of the stave can be measured in real time and periodically, the degree of wear of the stave can be measured.

In addition, since the remaining thickness change of the multiple points of the stator during blast furnace operation can be confirmed, the performance of the blast furnace can be maximized.

In addition, it is possible to maximize the life of the blast furnace by measuring the degree of wear of the stave, so that suitable measures such as improving the cooling capacity of the blast furnace according to the wear of the stave or changing the operating situation.

1 is a schematic cutaway perspective view of a blast furnace system including a device for measuring the thickness of a blast furnace in accordance with an embodiment of the present invention.
Figure 2 is a schematic front view and cross-sectional view showing a stave to measure the thickness of the blast furnace stave thickness measurement apparatus according to an embodiment of the present invention.
Figure 3 is a schematic cross-sectional view showing that the ultrasonic sensor provided in the stave thickness measurement apparatus of the blast furnace according to an embodiment of the present invention is installed in the stave.
Figure 4 is a schematic cross-sectional view showing the ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention.
Figure 5 is a schematic front view showing an ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention.
Figure 6 is a schematic side view showing an ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention.
7 is a schematic plan view showing an ultrasonic sensor provided in the apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention.
8 to 10 are schematic plan views and cross-sectional views showing a process in which the ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace in accordance with one embodiment of the present invention is installed in the cooling pipe of the stave.
11 is a flow chart showing a stave thickness measurement method of the blast furnace according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the present invention.

The same reference numerals are used to designate the same components in the same reference numerals in the drawings of the embodiments.

1 is a schematic cutaway perspective view of a blast furnace system including a device for measuring the thickness of a blast furnace in accordance with an embodiment of the present invention.

Referring to FIG. 1, a blast furnace system 500 including an apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention may include a blast furnace 100, an ultrasonic multiplex 300, and an operation unit 400. have.

The blast furnace 100 is charged with iron ore, which is the main raw material, and coal, which is a fuel, in the form of sintered ore and coke, and through the reduction reaction, iron oxide is lowered into a molten state of pig iron, that is, molten iron. And a stave 110 to protect the furnace body from the heat of reaction.

The stave 110 is a component that cools and protects the furnace body of the blast furnace 100, and may be a wide panel installed in parallel with the steel shell 130 surface of the blast furnace 100, and the cooling pipe 114 therein. ) May be provided.

Here, the cooling pipe 114 may protect the furnace body from the hot air and the reaction heat of high heat by the cooling water to the flow passage of the cooling water.

 In addition, the cooling pipe 114 may be provided with at least one ultrasonic sensor 200 to be described later, it is possible to measure the thickness of the stave 110 by the ultrasonic sensor 200.

Refractories 120 may be disposed on the inside and outside of the stave 110, the refractory 120 is a material that withstands the high temperature of the blast furnace 100 can maintain a sufficient strength without softening at a high temperature and chemical action It may be a material that can withstand.

Here, at least one ultrasonic sensor 200 may be connected by one or a plurality of ultrasonic multiplexes 300 and ultrasonic signal cables 310, respectively, the ultrasonic multiplex 300 is a plurality of ultrasonic waves in the ultrasonic flaw detector The sensor 200 can be operated.

Here, the ultrasonic multiplex 300 may transmit and receive an electrical signal to the ultrasonic sensor in sequence to measure the thickness of the stave 110 at multiple points at the same time, in the ultrasonic sensor 200 The transmitted / received signal is transmitted to an external operation unit 400, and the thickness of the stave 110 may be calculated in real time using the ultrasonic sound speed and the transmission / reception time in the stave 110.

The calculation unit 400 may store the thickness of the stave 110 as a database, and then extract the thickness of the stave 110 remaining after being worn during the operation of the blast furnace 100.

Furthermore, the wear rate of the stave 110 may be measured using the thickness of the stave 110 measured periodically.

Figure 2 is a schematic front view and cross-sectional view showing a stave to measure the thickness with a stave thickness measurement apparatus of the blast furnace according to an embodiment of the present invention.

Referring to Figure 2, the stave 110 according to the present invention can be processed in the grove 112 on the outer surface facing the blast furnace, the cooling to cool the temperature inside the blast furnace 100 inside Pipe 114 may be formed.

Here, the cooling pipe 114 may be formed in about five inside the stave 110, the blast furnace 100 may be provided with a plurality of staves (110).

In addition, the cooling pipe 114 may be in communication with the water supply pipe 118 and the drain pipe 116 to allow the coolant to flow in and out, and the water supply pipe 118 and the drain pipe 116 is a steel bar of the blast furnace 100 ( 130 is extended to the outside to connect the flexible hose from the outside to the water supply pipe 118 and the drain pipe 116 can supply the cooling water.

The upper and lower ends of the cooling pipe 114 may be formed in a T shape together with the water supply pipe 118 and the drain pipe 116, between one end of the cooling pipe 114 and the water supply pipe 118 and the cooling pipe. A predetermined space 111 may be formed between the other end of the 114 and the drain pipe 116.

The predetermined space 111 is a space generated by a drilling operation during the processing of the stave 110, and the space may allow the ultrasonic sensor 200 to be semi-permanently disposed.

Here, the thickness of the stave 110 to be measured by the ultrasonic sensor 200 which can be disposed in the predetermined space 111 is the thickness of the wall surface in which wear occurs during operation of the blast furnace 100, the cooling pipe ( It may be a wall thickness in the inward direction of the blast furnace 100 on the inner wall surface of the 114, that is, a wall thickness in the inward direction of the blast furnace 100 in which the groove 112 is formed.

In addition, since the ultrasonic sensor 200 may be positioned at both ends of the cooling pipe 114, the thickness of the protruding portion, which is a place where the wear progresses substantially earlier than the inside of the groove 112, may be preferentially measured. You can detect progress early.

Figure 3 is a schematic cross-sectional view showing that the ultrasonic sensor provided in the stave thickness measurement apparatus of the blast furnace according to an embodiment of the present invention is installed in the stave.

Referring to FIG. 3, the ultrasonic sensor 200 for measuring the thickness of the stave 110 may be embedded in the stave 110, and more specifically, the cooling provided in the inside of the stave 110. May be disposed in the pipe 114.

As described above, the cooling pipe 114 may be formed with an extra space 111 extending further at both ends in communication with the water supply pipe 118 and the drain pipe 116, the ultrasonic sensor ( 200 may be installed.

The ultrasonic sensor 200 is a component that transmits the ultrasonic wave to the stave 110 and receives the reflected ultrasonic wave to measure the thickness of the stave 110, which will be described later with reference to FIGS. 4 to 7. do.

The ultrasonic sensor 200 may be disposed at both ends of the cooling pipe 114 to be disposed at a position that does not interfere with the flow of the cooling water flowing through the water supply pipe 118, the cooling pipe 114, and the drain pipe 116. have.

Referring to the arrangement of the ultrasonic sensor 200 in detail, the ultrasonic sensor 200 is between one end of the cooling pipe 114 and the water supply pipe 118 or the other end of the cooling pipe 114 and the drain pipe ( It may be disposed between the 116, it may be in contact with the cooling water flowing in the cooling pipe 114.

Therefore, since the ultrasonic sensor 200 may contact the cooling water without disturbing the flow of the cooling water, the ultrasonic sensor 200 may not be damaged by heat.

In addition, since the cooling water may perform a function of a contact medium required for ultrasonic flaw detection, a separate contact medium may not be required at the contact portion between the ultrasonic sensor 200 and the cooling pipe 114.

Here, the ultrasonic signal cable 310 connected to the ultrasonic sensor 200 may be drawn out along the water supply pipe 118 and the drain pipe 116 and finally connected to the ultrasonic multiplex 300.

Figure 4 is a schematic cross-sectional view showing an ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention.

Referring to FIG. 4, the ultrasonic sensor 200 provided in the apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention includes a sensing unit 210 and a support unit 220 supporting the sensing unit 210. It may include.

The sensing unit 210 receives ultrasonic waves transmitted from the piezoelectric ceramic 212 for transmitting ultrasonic waves to the stave 110 and the piezoelectric ceramic 212 for transmission and reflected from the stave 110. The receiving piezoelectric ceramic 214 may be provided.

Here, if the inner surface 114a and the outer surface 114b of the cooling pipe 114 are defined, the inner surface 114a is an inner surface disposed adjacent to the inner side of the blast furnace 100 as shown in FIG. The outer surface 114b refers to the inner surface of the cooling pipe 114 close to the iron shell 130 of the blast furnace 100.

Accordingly, the piezoelectric ceramic 212 for transmitting the sensing unit 210 transmits ultrasonic waves toward the stave 110, and the ultrasonic waves are provided through the inner side 114a of the cooling pipe 141. ) Is incident inside.

Thereafter, the incident ultrasound may be reflected by the inner surface 110a of the stave 110 and proceed to the sensing unit 210, and may be received by the piezoelectric ceramic 214 for receiving the sensing unit 210.

The ultrasonic waves transmitted and received may measure the thickness of the stave 110 through the speed of sound and the time taken to receive the ultrasonic waves.

Here, the piezoelectric ceramic 212 for transmission and the piezoelectric ceramic for reception 214 of the sensing unit 210 may be formed in a separate structure, but are not necessarily limited thereto, and may be formed of one piezoelectric ceramic to transmit and receive ultrasonic waves. It can also serve as

In addition, the sensing unit 210 may be supported by the support unit 220 to which at least one elastic member 230 is coupled, and the elastic member 230 may be a coil spring.

The sensing unit 210 may be elastically changed inward or outward of the support part 220 by the elastic member 230, and the sensing unit 210 and the elastic member 230 may be changed. At least one of the support parts 220 may be in close contact with an inner surface of the cooling pipe 114.

Therefore, the outer surface of the ultrasonic sensor 200, that is, the outer surface of at least a portion of the sensing unit 210 and the support unit 220 may have the same radius of curvature as the inner surface of the cooling pipe 114.

Here, the space between the ultrasonic sensor 200 and the cooling pipe 114 consisting of the sensing unit 210 and the support 220 may be filled with a cooling water, the high temperature of the ultrasonic sensor 200 due to the cooling water It can protect from heat.

In addition, the cooling water may act as a contact medium between the ultrasonic sensor 200 and the cooling pipe 114 to smoothly transmit and receive ultrasonic waves.

In addition, the support 220 of the ultrasonic sensor 200 may have a circular cross section, and in this case, may have a diameter equal to or smaller than the diameter of the inner surface of the cooling pipe 114.

5 is a schematic front view illustrating an ultrasonic sensor provided in an apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention, and FIG. 6 is provided in an apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention. Figure 7 is a schematic side view showing the ultrasonic sensor, Figure 7 is a schematic plan view showing the ultrasonic sensor provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention.

5 to 7, the ultrasonic sensor 200 according to the present invention is to be in close contact with the inner surface of the water supply pipe 118 or the drain pipe 116 to fix the ultrasonic sensor 200 to the cooling pipe 114. It may include an elastic member 240.

The elastic member 240 may be a leaf spring of a portion of a circular shape, the elastic member 240 to hold the position at the time of installation of the ultrasonic sensor 200 or to fix the ultrasonic sensor 200 is not separated after installation Perform the function.

However, the elastic member 240 is not limited to the leaf spring, the shape is not limited as long as it is a means for fixing the ultrasonic sensor 200.

Here, the contact surface 200a of the ultrasonic sensor 200 which is in contact with the inner surface of the cooling pipe 114 may be formed as a curved surface having the same curvature as the inner surface of the cooling pipe 114 to form a structure in close contact for ultrasonic transmission. Can be.

The elastic member 240 for fixing the position of the ultrasonic sensor 200 in the cooling pipe 114 is coupled by the sensing unit 210 and the support unit 220 and the bracket 245 of the ultrasonic sensor 200. It may be, and may be formed integrally with the elastic member 240 of the bracket 245.

The bracket 245, the sensing unit 210, and the support unit 220 may be firmly coupled by the fastening member 250, and the fastening member 250 may use a bolt or the like.

Here, the opposite surface of the left side of the ultrasonic sensor 200 connected to the bracket 245, that is, one surface 200b of the ultrasonic sensor 200 to which the bracket 245 is not coupled, has a cylindrical water supply pipe 118 and a drain pipe 116. It may be formed of a curved structure of the same curvature of the surface.

This can provide a maximum sensor area when passing through the limited water supply pipe 118 or the drain pipe 116 in the installation of the ultrasonic sensor 200, so that the transmit and receive piezoelectric ceramics 212 and 214 inside the ultrasonic sensor 200 are provided. To maximize the size of the ultrasound to maximize the transmission and reception rate.

In addition, the elastic member 240, as shown in Figure 6 is not a complete circular shape of the arc can be collected in a narrow circle.

When the elastic member 240 is collected in a circular shape, the cross-sectional area of the outer shape is reduced, so that the ultrasonic sensor 200 and the elastic member 240 may enter simultaneously in the cross-sections of the limited water supply pipe 118 and the drain pipe 116, thereby cooling piping. 114 may be a structure that can be installed inside.

In this case, the elastic member 240 may not be an essential component of the ultrasonic sensor 200, and it is found that the thickness of the stave 110 may be measured only by the ultrasonic sensor 200 without the elastic member 240. Put it.

In addition, the ultrasonic sensor 200 may be detachable in the cooling pipe 114 to replace the ultrasonic sensor 200 at any time.

8 to 10 are schematic plan views and cross-sectional views showing a process in which the ultrasonic sensor provided in the apparatus for measuring the thickness of a blast furnace according to an embodiment of the present invention is installed in a cooling pipe of the stave.

8 to 10, the ultrasonic sensor 200 provided in the apparatus for measuring the thickness of the blast furnace according to an embodiment of the present invention is the water supply pipe 118 and the drain pipe 116 in communication with the cooling pipe 114. Inserted through, it is fixed semi-permanently to the end of the cooling pipe 114.

In this case, the sensor installation mechanism 260 may contract the structure of the elastic member 240 connected to the upper portion of the ultrasonic sensor 200 into a small circle so as to be inserted into the water supply pipe 118 or the drain pipe 116.

The sensor installation mechanism 260 is separated from the elastic member 240 when the ultrasonic sensor 200 reaches the inner surface of the cooling pipe 114.

Thereafter, the elastic member 240 is in close contact with the inner surface of the water supply pipe 118 or the drain pipe 116 while the elastic member 240 is expanded by an elastic force or a restoring force and at the same time the ultrasonic sensor 200 is the cooling pipe ( It is naturally pushed into the space at the end of 114).

Therefore, the ultrasonic sensor 200 is in close contact with the inner surface of the cooling pipe 114 by the elastic member 240 and is not separated from the installed position.

11 is a flow chart showing a stave thickness measurement method of the blast furnace according to an embodiment of the present invention.

Referring to FIG. 11, first, the ultrasonic sensor 200 is embedded in a cooling pipe 114 formed in the stave 110 for cooling and protecting the furnace body of the blast furnace 100 (S10).

Thereafter, the ultrasonic sensor 200 transmits ultrasonic waves so as to measure the thickness of the stave 110 from the inner surface of the cooling pipe 114, and receives the reflected ultrasonic waves (S20).

Thereafter, the waveform for measuring the thickness of the stave 110 is detected through the transmitted and received ultrasonic waves, and the thickness of the stave 110 is measured using the sound speed of the ultrasonic wave and the time difference transmitted and received (S30).

If the thickness of the stave 110 is measured in real time and periodically, it may be a database (S40) to extract the degree of wear and wear rate of the stave 110 (S50).

Through the above embodiment, the thickness of the stave 110 without changing the structure of the blast furnace 100 due to the at least one ultrasonic sensor 200 installed in the cooling pipe 114 formed inside the stave 110. It can be measured.

In addition, by connecting the ultrasonic signal cable of the at least one ultrasonic sensor 200 to the ultrasonic multiplex 300 through the water supply pipe 118 or the drain pipe 116, it is possible to measure the thickness of the stave 110 simultaneously and multiple. It can be monitored online.

In addition, since the change in the remaining thickness of the stave 110 in real time during the operation of the blast furnace 100 can be measured and a database thereof, the wear rate of the stave 110 can be extracted, so that the performance and lifespan of the blast furnace 100 can be obtained. Can be maximized.

100: blast furnace 110: stave
112: Grove 114: Cooling piping
118: water supply pipe 116: drain pipe
200: ultrasonic sensor 210: sensing unit
220: support portion 230, 240: elastic member
300: ultrasonic multiplex 400: calculator

Claims (11)

A stave provided in the blast furnace for cooling and protecting the furnace body of the blast furnace; And
And at least one ultrasonic sensor which is embedded in the stave and transmits the ultrasonic wave to the stave and receives the reflected ultrasonic wave to measure the thickness of the stave.
The method of claim 1,
The stave is provided with at least one cooling pipe disposed inside the steel bar forming the outer surface of the blast furnace,
The ultrasonic sensor is a stave thickness measuring apparatus of the blast furnace, characterized in that disposed in the interior of the cooling pipe.
The method of claim 2,
One end of the cooling pipe communicates with the water supply pipe and the other end with the drain pipe, and the water supply pipe and the drain pipe extend outside the steel shell,
The ultrasonic sensor is a stave thickness measuring device of the blast furnace, characterized in that disposed between the one end of the cooling pipe and the water supply pipe or between the other end of the cooling pipe and the drain pipe.
The method of claim 2,
At least a portion of the outer surface of the ultrasonic sensor has a radius of curvature of the blast furnace, characterized in that it has the same radius of curvature as the inner surface of the cooling pipe to be in close contact with the inner surface of the cooling pipe.
The method of claim 2,
The ultrasonic sensor includes a sensing unit for transmitting the ultrasonic wave and receiving the reflected ultrasonic wave and a support unit having an elastic member coupled thereto to support the sensing unit.
At least one of the sensing unit and the support portion is a stave thickness measuring apparatus of the blast furnace, characterized in that the close contact with the inner surface of the cooling pipe by the elastic force of the elastic member.
The method of claim 2,
The cooling pipe is in communication with the water supply pipe and the drain pipe in which the coolant flows in and out,
The ultrasonic sensor is a stave thickness measuring device of the blast furnace, characterized in that it comprises an elastic member coupled to the ultrasonic sensor to secure the ultrasonic sensor to the cooling pipe and in close contact with the inner surface of the water supply pipe or the drain pipe.
The method of claim 1,
And an ultrasonic multiplex electrically connected to the ultrasonic sensor to simultaneously measure the thickness of the stave of multiple points by the ultrasonic sensor.
The method of claim 1,
An arithmetic unit electrically connected to the ultrasonic sensor to calculate the thickness of the stave using the ultrasonic data periodically measured by the ultrasonic sensor, and to make a database to extract the wear rate of the stave; Stave thickness measurement device of the blast furnace.
Embedding an ultrasonic sensor in a cooling pipe formed in a stave for cooling and protecting the furnace body of the blast furnace;
Detecting a waveform for measuring the thickness of the stave through ultrasonic waves transmitted and received by the ultrasonic sensor; And
And measuring the thickness of the stave by analyzing the detected waveform.
10. The method of claim 9,
Measuring the thickness of the stave
And measuring the thickness of the stave using the sound speed of the ultrasonic wave and the time difference transmitted / received in the inside of the stave.
10. The method of claim 9,
Periodically measuring the thickness of the stave and extracting the wear rate of the stave by making a database of the stave thickness of the blast furnace characterized in that it further comprises.

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