KR101314288B1 - Leveling apparatus for a coking chamber of coke oven - Google Patents

Abstract

The present invention provides a coke oven carbonation chamber level measurement apparatus that can measure the coal or coke level in the coke oven carbonization chamber without inserting the level sensor into the carbonization chamber. The level measuring device for the coke oven carbonization chamber is installed outside the carbonization chamber and is disposed at one end of the sensing unit for measuring the distance using a laser beam, and at one end of the optical channel unit and the optical channel unit providing a reciprocating path of light exiting from the sensing unit and entering the sensing unit. A light reflecting portion for reflecting light from the sensing portion into the carbonization chamber through the optical channel portion to the coal or coke side and reflecting light from the coal or coke side to the sensing portion, and a light channel portion mounted and moving in the longitudinal direction of the carbonization chamber and moving the light reflecting portion It includes a beam portion to make.

Description

LEVELING APPARATUS FOR A COKING CHAMBER OF COKE OVEN}

The present invention relates to a level measuring device, and more particularly, to a level measuring device for a coke oven carbonization chamber which can measure the coal level and the coke level in the coke oven carbonization chamber without inserting the level sensor into the carbonization chamber.

Coke is a solid carbon source and carbon source used to melt and reduce iron ore in the process of steel making. Such coke seals the coal (6) supplied to the coke oven (1) for about 24 to 48 hours under controlled conditions similar to the atmospheric conditions, as shown in FIG. 1, and a high temperature of about 1200 to 1300 ° C. It is prepared by heating.

This coke oven (1) is provided with a plurality of carbonization chamber (2) having a narrow axial interior space for efficient production of coke. A coking chamber of coke oven is typically installed to have an interior space that is considerably narrower in width and height than the height and length between the walls arranged approximately parallel as shown in FIG. For example, as shown in FIG. 2, the internal space of the coke oven carbonization chamber has a height H of about 6780 mm, a length L of about 15480 mm, and a width W of about 430 mm.

The coal 6 injected into the carbonization chamber 2 is flattened at its upper end by a leveling device such as a so-called leveler 8. These coal flattening operations aim to pinpoint coal input and optimize coke operation. Here, leveling refers to flattening the height of the coal 6 introduced into the carbonization furnace 2 and measuring the level or height of the coal. The coke produced in the carbonization chamber is extruded out of the carbonization chamber 2 by a device such as a hammer-shaped ram (see reference numeral 9 in FIG. 3).

Before the coke extruding operation, it is usually possible to determine the shrinkage rate of the coal by measuring the coke level. In such a case, the measured coke level is compared with the level of the input coal in the carbonization chamber to adjust the amount of input coal in the subsequent coke process. It is possible.

On the other hand, most existing level measuring device is configured to insert a level sensor into the carbonization chamber to measure the coal level or coke level of the carbonization chamber before and after the coke production process. However, when the level sensor having a heat-sensitive component such as an electronic circuit or a laser sensor is inserted into the carbonization chamber, the level sensor is likely to be damaged by the high temperature and high temperature in the carbonization chamber. In order to prevent this, the conventional level measuring device has a disadvantage in that the structure is complicated and expensive because the level sensor must be provided with a heat insulating means or a cooling means in order to inject the level sensor into the carbonization chamber of a high temperature and high temperature atmosphere. have.

The present invention aims to provide a coke oven carbonation chamber level measurement apparatus capable of accurately measuring the coal level and coke level in the coke oven carbonization chamber without inserting a level sensor into the carbonization chamber.

Another object of the present invention is to provide a low-cost coke oven level measuring apparatus that can be simply constructed using a ladder type leveler.

In order to solve the above technical problem, a level measuring apparatus for a coke oven carbonization chamber according to an aspect of the present invention is a device for measuring the level of coal and coke in the coke oven carbonization chamber, installed outside the carbonization chamber and using a laser beam distance Sensing unit for measuring; An optical channel unit providing a reciprocating path of light exiting the sensing unit and entering the sensing unit; An optical reflection part disposed at one end of the optical channel part and reflecting light from the sensing part into the carbonization chamber through the optical channel part to the coal or coke side and reflecting light from the coal or coke side to the sensing part; And a beam part mounted on the optical channel part and moving in the longitudinal direction of the carbonization chamber and moving the light reflection part.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further comprises an auxiliary sensing unit for measuring the moving distance of the beam unit.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further includes a control unit for calculating the level of coal or coke based on the sensing values received from the sensing unit and the auxiliary sensing unit.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further includes a gas supply unit for supplying a purge gas or a cooling gas to the light reflection side through the optical channel portion.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further includes a gas discharge unit for recovering the gas reflected by the light reflecting unit.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber is provided in the middle portion of the optical channel portion joint portion for bending the intermediate portion of the optical channel portion at a predetermined angle; And an auxiliary light reflecting unit installed to reflect light from the sensing unit side to the light reflecting unit side through the optical channel unit and to reflect light from the light reflecting unit side to the sensing unit side within the joint part.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further includes a lifting drive unit for lifting the sensing unit and the beam unit in the height direction of the carbonization chamber.

In one embodiment, the level measuring apparatus for the coke oven carbonization chamber further includes a shutter portion coupled to the optical channel portion and selectively opening or closing holes or outlets located between the light reflection portion and the coal in the carbonization chamber.

In one embodiment, the beam portion comprises a leveler bar in the form of a ladder.

In one embodiment, the optical channel portion is provided to extend in the longitudinal direction of the leveler bar at the side portion, the top surface center portion or the edge portion of the leveler bar.

According to the present invention, it is not necessary to put a level sensor such as a laser distance measuring sensor into a high temperature and high temperature atmosphere inside a coke oven carbonization chamber, so that the life of the sensor is stably maintained and reliability of the level measurement within the life of the sensor is maintained. I can guarantee it.

In addition, it is possible to build a level measuring device at a low cost by using a flattening device such as an existing leveler, and there is an advantage in that maintenance is easy because the reliability and life of the device can be easily guaranteed.

In addition, by using the level sensor outside the carbonization chamber and the reflector structure inside the carbonization chamber, it is possible to effectively grasp the peak or valley height of coal injected into the carbonization chamber from the outside of the carbonization chamber, thereby changing the quality of coal introduced into the carbonization chamber. In this way, the amount of input coal generated can be effectively identified and determined.

In addition, by accurately determining the amount of input coal, it is possible to easily determine the correct start time of leveling of the leveler, thereby automating the coal leveling or improving the efficiency thereof.

In addition, since the gasway in the carbonization chamber can be accurately secured at an accurate time, the generated gas can be prevented from leaking to the outside due to narrowing of the gasway due to poor coal flatness.

In addition, it is possible to effectively measure the level of coke generated in the carbonization chamber without inserting the level sensor into the high temperature and high temperature carbonization chamber, whereby the volume of the coke cake can be accurately adjusted by calculating the volume of the coke cake. In addition, it is possible to appropriately secure the upper space of the carbonization chamber by the amount of coal to be adjusted accurately to prevent the uneven phenomenon of the coke quality and the temperature of the upper carbonization chamber.

1 is a schematic partial cross-sectional perspective view for explaining an example of a conventional coke oven.
FIG. 2 is a schematic perspective view for explaining an example of a carbonization chamber of the coke oven of FIG. 1.
3 is a schematic configuration diagram of a coke oven carbonization chamber level measuring apparatus (hereinafter, simply referred to as "level measuring apparatus") according to an embodiment of the present invention.
4 is a schematic plan view of the level measuring apparatus of FIG. 3.
Figure 5 is a schematic diagram for explaining the configuration and operation principle of the level measuring device according to another embodiment of the present invention.
FIG. 6 is a schematic diagram for describing a modification of the level measuring apparatus of FIG. 5.
Figure 7 is a schematic diagram for explaining the configuration and operation principle of the level measuring device according to another embodiment of the present invention.
FIG. 8 is a view for explaining an embodiment of an optical channel unit and an auxiliary light reflecting unit that may be employed in the level measuring apparatus of FIG. 7.
9 is a perspective view of an example of a leveler employable in the level measuring device of the present invention.
10 is a perspective view of still another example of a leveler employable in the level measuring device of the present invention.
11 is a schematic diagram for explaining a process of measuring coke level using the level measuring device of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic configuration diagram of a level measuring apparatus for a coke oven carbonization chamber according to an embodiment of the present invention. 4 is a schematic plan view of the level measuring apparatus of FIG. 3.

3 and 4, the level measuring device 10 includes a sensing unit 12, an optical channel unit 14, a light reflecting unit 16, and a beam unit 18. In addition, the level measuring device 10 may include an auxiliary sensing unit 20. In addition, the level measuring device 10 may include a control unit 22 electrically connected to the sensing unit 12. In addition, the level measuring apparatus 10 may include at least one first lift driver 24 and a second lift driver 26.

The level measuring device 10 has a coal 6 introduced into each carbonization chamber of the coke oven through a drop sleeve (see reference numeral 4 of FIG. 1), and is leveled by the leveler 8, and then the coal 6 in the carbonization chamber is Measure the level. At this time, the sensing unit 12 of the level measuring device 10 is not inserted into the carbonization chamber and measures the level of coal introduced into the carbonization chamber from the outside of the carbonization chamber.

이러한 원리에 의하여 탄화실 내의 석탄(6)의 레벨(h)를 구할 수 있게 된다. For example, the distance value of the sensing unit 12 with respect to coal in the carbonization chamber is the sum of L1 and h, and the offset value based on the auxiliary sensing unit 20 is the value obtained by subtracting L2 from L1. Therefore, the level h of the coal 6 in the carbonization chamber is obtained by subtracting the measurement value of the auxiliary sensing unit 20 from the measurement value of the sensing unit 12 for the coal in the carbonization chamber and subtracting the offset value therein. Can be. As will be described later, the auxiliary sensing unit 20 can obtain the position of the beam unit 18 by the measurement value L2 of the auxiliary sensing unit 20 as a means for grasping the moving distance of the beam unit 18. In addition, as will be described later, since the beam portion 18 is provided to extend in the longitudinal direction of the carbonization chamber as a means for supporting the optical channel portion 14 and the light reflection portion 16, the optical channel portion 14 and the light reflection Together with the portion 16 is extended in the longitudinal direction of the carbonization chamber. Therefore, the offset value is a value known in advance as a constant value. If this is expressed as an equation, Equation A is as follows.
[Mathematical formula A]
h = measurement value of the sensing part 12-measurement value of the auxiliary sensing part 20-offset value
Solve it and write it as in Equation 1 below.

By this principle, the level h of the coal 6 in the carbonization chamber can be obtained.

delete

The above-mentioned carbonization chamber 2 of the coke oven has a pair of inner walls 3a and 3b which are installed with a very narrow width relative to their length or height so that an axially shaped inner space is formed in the longitudinal direction thereof. The beam portion 18 provided with the optical channel portion 14 and the light reflection portion 16 reciprocates the inside of the carbonization chamber in its longitudinal direction D along the inner walls 3a and 3b.

As such, the level measuring device 10 may substantially measure the coal level inside the carbonization chamber outside the carbonization chamber.

Each component of the level measuring apparatus according to the present embodiment will be described in more detail as follows.

The sensing unit 12 is a component that measures a distance to an object using a laser beam or a component that performs a function corresponding thereto. The sensing unit 12 may include, for example, a light emitter for emitting light toward the light reflecting unit 16 and a light detector for detecting light reflected from the coal through the light reflecting unit 16 and returned. And a counter for calculating the time from the emission of light to the detection. This sensing unit 12 may be referred to as a so-called laser distance measuring sensor.

The light channel unit 14 proceeds to allow the light emitted from the sensing unit 12 to be smoothly transmitted to the light reflecting unit 16 and the light reflected from the light reflecting unit 16 to reach the sensing unit 12 smoothly. It refers to a means for protecting a path or a component that performs a corresponding function. The optical channel unit 14 may be implemented as a metallic pipe, a heat resistant glass tube, a heat resistant composite material, or the like.

The light reflecting portion 16 reflects the light coming through the optical channel portion 14 toward the coal 6 in the carbonization chamber, and means for reflecting the light reflected from the coal 6 back to the sensing portion 12 or the like. It includes a component that performs a corresponding function. The light reflection part 16 may be in close contact with one end of the optical channel part 14 or may be inserted into one end of the optical channel part 14. The light reflecting portion 16 may be implemented with, for example, a mirror or a material having a surface or an interface that performs a function corresponding to the mirror. The surface or interface may be formed with a predetermined heat resistant coating layer on the heat resistant material, and is preferably formed to have 100% reflectance.

Beam portion 18 refers to a means for supporting optical channel portion 14 and light reflecting portion 16, or an instrument or device that performs a corresponding function. The beam portion 18 is provided to extend in the longitudinal direction of the carbonization chamber by the length of the carbonization chamber. The beam unit 18 may be implemented as a member having a predetermined strength or more, and as such a member, a steel beam may be used. In addition, the beam unit 18 may be installed to adjust the height according to the height of the coal injected into the carbonization chamber.

The auxiliary sensing unit 20 is a component for performing a function or a function for determining the moving distance of the beam unit 18 moving at least in the longitudinal direction of the carbonization chamber by detecting the position of a specific point of the beam unit 18. Refer. The auxiliary sensing unit 20 may be implemented as a reference reflector 19 positioned at a specific point of the beam unit and a laser distance measuring sensor measuring a distance to the reference reflector 19. The reference reflector 19 may be implemented as a mirror.

The controller 22 may be electrically connected to the sensing unit 12 and the auxiliary sensing unit 20 to output a coal level corresponding to the measured value or the output value of the sensing unit 12 to the display device. In addition, the controller 22 may generate a coal level profile based on the measured coal levels, and calculate the amount or volume of coal input to each carbonization chamber based on the measured coal levels. The control unit 22 may include a computer-based device.

The first lift driver 24 refers to a means for lifting the beam 18 in the height direction of the carbonization chamber or a component for performing a function corresponding thereto. The second elevating driver 26 refers to a means for elevating the sensing unit 12 and the auxiliary sensing unit 20 in the height direction of the carbonization chamber, or a component for performing a function corresponding thereto. The first and second lift drivers 24 and 26 may be implemented as one or more devices such as a hydraulic device or an elevator device. In FIG. 3, the first and second lift drivers 24 and 26 are omitted for convenience of illustration.

According to the above-described configuration, the light emitted from the sensing unit 12 provided outside the carbonization chamber is reflected by the light reflection unit 16 via the optical channel unit 14 and then irradiated to the upper part of the coal in the carbonization chamber. Some of the light reflected by the light reflected from the light reflecting unit 16 and reaches the sensing unit 12 via the optical channel unit 14 again. Here, the sensing unit 12 detects the light reflected back from the coal, thereby calculating the round trip time of the light and calculating the level of coal in consideration of the height of the current level measuring device.

Figure 5 is a schematic diagram for explaining the configuration and operation principle of the level measuring device according to another embodiment of the present invention.

Referring to FIG. 5, the level measuring device 10a may further include a gas supply unit 30 in addition to the level measuring device 10 described with reference to FIGS. 3 and 4.

The gas supply unit 30 includes, for example, a gas tank and / or a gas compressor for storing purge gas or air, and includes a predetermined pipe connected between the inlet 32 of the optical channel unit 14 and the gas tank. Supply air through. Here, the inlet 32 may be coupled to the optical channel unit 14 with a predetermined inclination angle such that the air flow direction D1 is directed from the sensing unit 12 toward the light reflection unit 16.

The air supplied into the optical channel unit 14 by the gas supply unit 30 may flow through the optical channel unit 14 and then be reflected by the light reflection unit 16 and discharged to the outlet 34. The outlet 34 may be installed in the form of a hole penetrating the beam portion 18 or in the form of an opening toward the lower side from the side of the beam portion 18.

In addition, the gas supply unit 30 is a cooling means for cooling the air on the air flow path between the air tank and the air inlet 32, an air filter for removing impurities in the air, or a valve or flow control device for adjusting the air supply amount (MFC, Mass flow controler) and the like can be provided. Here, the air can be replaced with a suitable gas such as purge gas.

According to the present embodiment, the light reflection portion 16 which is directly exposed to the high temperature and high temperature atmosphere in the carbonization chamber is cooled to prevent deterioration or damage of the light reflection portion 16, and scattered in the carbonization chamber to the outlet 34. The incoming coal dust or contaminants may not cover the surface of the light reflection part 16 or block the optical channel part 14 to prevent an error in coal level measurement.

FIG. 6 is a schematic diagram for describing a modification of the level measuring apparatus of FIG. 5.

Referring to FIG. 6, the level measuring device 10b according to the present embodiment may further include a gas discharge part 40 in addition to the level measuring device 10a described with reference to FIG. 5.

The gas discharge part 40 is provided with the exhaust pump 42 and the piping 44, for example, and the light reflection part (through the piping 44 which connects the light reflection part 16 and the exhaust pump 42) The cooling air reflected by 16 is discharged to the outside of the carbonization chamber by the exhaust pump 42. One end of the pipe 44 is fluidly connected to the outlet 34 and the other end is connected to the exhaust pump 42. One end 44a of the pipe 44 may be supported by the beam unit 18.

Most of the flow D2 of the cooling air reflected by the light reflection unit 16 near the light reflection unit 16 is discharged from the light reflection unit 16 to the pipe 44 due to a predetermined suction force by the exhaust pump 42. It is formed toward. Here, the flow of the cooling air from the optical channel portion 14 via the light reflection portion 16 to the outside through the pipe 44 and a part of the flow of cooling air from the optical channel portion 14 according to conditions such as pressure in the optical channel portion 14. Through this outlet 34 can be discharged into the carbonization chamber.

The pipe 44 is preferably a flexible heat resistant pipe, and performs a hose reel 46 or similar function that can extend or reduce the length of the pipe 44 according to the movement of the beam unit 18. Can be coupled to the device.

According to this embodiment, coal powder 6 and other unwanted substances flowing into the light reflection portion 16 through the outlet 34 from the inside of the carbonization chamber are caught in the middle and released to the outside of the carbonization chamber, while By acting so that little coal powder or the like is present between the outlet 34 so that a small amount of light reflected from the upper surface of the coal 6 can be effectively returned to the sensing unit 12 through the light reflecting unit 16. .

Figure 7 is a schematic diagram for explaining the configuration and operation principle of the level measuring device according to another embodiment of the present invention. FIG. 8 is a view for explaining an embodiment of an optical channel unit and an auxiliary light reflecting unit that may be employed in the level measuring apparatus of FIG. 7.

Referring to FIG. 7, the level measuring device 10c according to the present embodiment includes the joint part 50 and the joint part 50 provided in the middle part of the optical channel part in the level measuring device described with reference to FIG. 5 or 6. It is a main technical feature that the auxiliary light reflecting unit 52 is further provided therein.

The joint part 50 is a means for bending the intermediate part of the optical channel part at a predetermined angle. For example, the joint part 50 connects the first optical channel part 14a and the second optical channel part 14b, which are divided into two, and the second optical channel part 14 is extended with respect to the extension line in the longitudinal direction of the first optical channel part 14a. 14b) is inclined to at least one particular angle.

The auxiliary light reflecting unit 52 is installed to reflect the laser beam coming and going between the sensing unit 12 and the light reflecting unit 16 while the optical channel unit is bent. In order to reflect the laser beam in the optical channel part, the auxiliary light reflecting part 52 is installed to be inclined by half of the inclination angle of the joint part 50 when the joint part 50 is bent.

In addition, in the level measuring device 10c according to the present embodiment, the first optical channel portion 14a and the second optical channel portion 14b elastically adjust the length between the beam portion 18 and each of the optical channel portions 14a and 14b. In the meantime, fixing parts 54a and 54b supporting the optical channel parts 14a and 14b may be provided on the beam part 18. At least one first fixing portion 54a is elastically coupled to the beam portion 18 and the first optical channel portion 14a, and the at least one second fixing portion 54b is the beam portion 18 and the second optical channel portion. It is elastically coupled to 14b. The first and second fixing parts 54a and 54b may be implemented as spring members or small hydraulic devices.

Referring to the operation principle of the above-described joint portion 5 in more detail, as shown in Figure 8, the length of the optical channel portion inserted into the carbonization chamber may vary depending on the length of the carbonization chamber in the case of a general coke oven carbonization chamber It is about 15m long. Accordingly, the optical channel portion may be slightly curved in the carbonization chamber with respect to the longitudinal direction by the weight of the beam portion 18 or the weight of the beam 18. For example, one end of the optical channel unit in which the light reflection unit 16 is located may be positioned about 1 m below the carbonization chamber lower side with respect to the other end of the optical channel unit adjacent to the sensing unit 12. In such a case, the laser beam of the sensing unit 12 cannot properly pass the curved optical channel portion between the sensing unit 12 and the light reflecting unit 16, and thus the coal or coke level in the carbonization chamber cannot be measured. Therefore, in the level measuring device 10c according to the present embodiment, the joint part 50 and the auxiliary light reflection may be secured so as to secure a light propagation path between the sensing unit 12 and the light reflecting unit 16 regardless of the bending of the beam unit 18. The part 52 is provided.

In one embodiment, the joint part 50 is installed at one end of the first optical channel part 14a as shown in FIG. 8A and includes a hinge part 51a having a hinge coupling hole, and a first optical channel part. A hinge protrusion 51b is installed at the other end of the second optical channel portion 14b facing one end of the 14a and is inserted into the hinge coupling hole. As shown in FIG. 8B, the joint part 50 is installed such that the inclination angle is limited at a specific angle θ when the second optical channel part 14b is inclined with respect to the first optical channel part 14a. desirable.

In order to limit the inclination angle of the joint part 50 to a specific angle θ, the first and second optical channel parts 14a and 14b may be disposed at regular intervals therebetween, and an elastic heat resistant material ( 56 may be installed. In addition, in order to limit the inclination angle of the joint part 50, a stopper (not shown) having a protrusion shape installed to protrude on the outer surface of the first or second optical channel parts 14a and 14b may be provided. In addition, it is also possible to limit the inclination angle of the joint part 50 to a specific angle θ by installing the structures of the hinge coupling hole and the hinge protrusion 51b of the hinge part 51a to limit their relative rotation angles.

Here, the particular angle θ may be about 0.079068 °. The specific angle [theta] is about tan when the length of each of the first and second optical channel portions 14a and 14b is about 7500 mm, and the maximum deflection value at one end of the other end of the optical channel portion or the beam portion is about 1000 mm. It is obtained from the value of (0.0138). In such a case, the auxiliary light reflecting portion 52 is inclined in a direction in which the second optical channel portion 14b is inclined with respect to the first optical channel portion 14a at an angle corresponding to half of tan (0.0138). And reflects the laser beam between the light reflecting portion 16 performs a function to allow the laser beam to proceed smoothly.

The above-described auxiliary light reflecting unit 52 may be implemented as a mirror reflecting a laser beam or a means for performing a function corresponding thereto, and may be installed at corresponding portions in the first and / or second optical channel units 14a and 14b. It may be implemented to be inclined at half of the inclination angle of the joint part 50 by a protrusion or a tooth structure. For example, the projection (not shown) for inclining the auxiliary light reflecting portion 52 is an interval corresponding to half of the moving distance corresponding to the inclination angle of the joint part 50 with respect to the spot for rotating the auxiliary light reflecting portion 52 about its rotation axis. It can be implemented to be placed.

According to the present embodiment, even when the beam portion 18 sags due to a relatively long length, the intermediate portion of the optical channel portion mounted on the beam portion 18 is bent at a specific angle by the joint portion 50 and installed in the joint portion 50. By relaying the inclined reciprocating path of the laser beam through the auxiliary light reflecting unit 52, it is possible to easily measure the level of coal or coke inside the carbonization chamber outside the carbonization chamber.

9 is a perspective view of an example of a leveler employable in the level measuring device of the present invention.

Referring to FIG. 9, in the level measuring device 10d of the present embodiment, the beam part (see reference numeral 18 of FIG. 3) may be implemented as a conventional ladder type leveler bar 18d used in a coke oven carbonization chamber. (See 8 in FIG. 1). The term " leveler bar " refers to a conventional leveler for planarizing a carbonization chamber, comprising at least a ladder-shaped component inserted into the carbonization chamber and a component for supporting it. The leveler bar 18d is composed of a pair of first plates 70 extending in parallel in the longitudinal direction and a plurality of second plates 72 connecting in a bridge form between the pair of first plates 70. Can be. In this case, the optical channel portion 14d may be implemented to be installed on an outer surface of at least one side surface in the longitudinal direction of the leveler bar 18d.

Here, the light reflection portion (not shown) is installed inside one end of the optical channel portion 14d, and thus cooling air supplied from the gas supply portion and flowing through the optical channel portion 14d passes through the light reflection portion and then the light reflection portion. It can be discharged to the outlet on the lower side. In addition, one end of a pipe (not shown) of the gas discharge unit may be connected to the outlet to form a channel for exhausting the cooling gas (see reference numeral 40 of FIG. 6). The sensing unit is omitted for convenience of illustration.

10 is a perspective view of still another example of a leveler employable in the level measuring device of the present invention.

Referring to FIG. 10, in the level measuring device 10e of the present embodiment, the beam part (see reference numeral 18 of FIG. 3) may be embodied as a conventional ladder type leveler bar 18e used in a coke oven carbonization chamber. (See 8 in FIG. 1). In this case, the optical channel unit 14e may be implemented to be installed at the center of the upper side of the leveler bar along the longitudinal direction of the leveler bar 18e. Of course, it is also possible to provide two optical channel portions at both edges of the upper center. Compared to the leveler bar 18d of FIG. 9, the leveler bar 18e of the present embodiment is configured to smoothly flow the gas in the carbonization chamber by the plurality of through holes 80 formed in the first plate 70. do.

Here, the light reflection portion (not shown) is provided on the lower side of one end of the optical channel portion 14e, and the outlet 34 is provided on the lower portion of the light reflection portion. The outlet 34 is exposed toward the coal on the lower side of the leveler bar 18e. Cooling air supplied from the gas supply portion and flowing through the optical channel portion 14d is discharged to the outlet 34 via the light reflection portion. On the other hand, one end of the pipe (not shown) of the gas discharge unit may be connected to the outlet 34 to form a channel for exhausting cooling gas or the like (see reference numeral 40 of FIG. 6).

According to the embodiments described above, it is possible to simply implement the level measuring device according to the present invention using the existing level bar. In addition, by using the existing leveler bar and leveler, it is possible to easily measure the level of coal in the carbonization chamber while completing the leveling operation of the leveler and then raising the position of the leveler slightly and retracting the leveler from the carbonization chamber. In addition, the coal level profile may be generated based on the plurality of coal levels previously measured by the controller, thereby easily determining the amount of coal input into the carbonization chamber.

For reference, the existing leveler is cited as disclosed in the charging coal level flattening apparatus of the coke oven of Patent No. 10-0600329.

11 is a schematic diagram for explaining a process of measuring coke level using the level measuring device of the present invention.

Referring to FIG. 11, the level measuring apparatus according to the present embodiment is a modification of the level measuring apparatus illustrated in FIG. 5, and further includes a shutter unit 36 coupled to the outlet 34. .

The shutter unit 36 may be implemented to switch from the closed state to the open state under the control of the controller 22 during the level measurement operation. When the shutter unit 36 is used, the outlet 34 and the optical channel unit 14 are opened only during the level measurement operation, thereby maintaining the closed state during the leveling operation so that coal in the carbonization chamber is stored in the outlet 34 or the optical channel. It is possible to prevent the inflow into the portion 14.

In addition, the level measuring device according to the present embodiment may be inserted into the carbonization chamber before the coking process of coal is completed and the next coke process starts to measure the level h2 of the coke 7. By using the plurality of coke levels measured at a plurality of places of the coke upper end in the carbonization chamber, the coke level profile can be generated by the control unit 22, whereby the volume of the coke can be calculated.

In that case, the level measuring device compares the level (h1) or volume of the coal with the level (h2) or the volume of the coke, and the coke according to the physical properties of the raw coal, or the loading density of the coal injected into the carbonization chamber, or the operating conditions of the coke. It is possible to grasp the quality of and improve or maintain the coke strength or quality subsequently produced.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be possible. Accordingly, the present invention should be construed by reference to the appended claims, drawings, and the like, and all of its equivalents or equivalent variations fall within the scope of the present invention.

Claims (10)

Coke oven for measuring the level of coal and coke in the carbonization chamber,
A sensing unit installed outside the carbonization chamber and measuring a distance by using a laser beam;
An optical channel unit providing a reciprocating path of light exiting the sensing unit and entering the sensing unit;
A light reflection unit disposed at one end of the optical channel unit and reflecting light from the sensing unit into the carbonization chamber through the optical channel unit to the coal or coke side and reflecting light from the coal or coke side to the sensing unit;
A beam part mounted with the optical channel part and moving in the longitudinal direction of the carbonization chamber and moving the light reflection part;
A gas supply unit supplying a purge gas or a cooling gas to the light reflection unit through the optical channel unit;
A joint part installed at an intermediate part of the optical channel part and bending the intermediate part of the optical channel part at a predetermined angle; And
The auxiliary light reflector is installed to reflect light from the sensing unit side through the optical channel unit to the light reflecting unit and reflects light from the light reflecting unit to the sensing unit.
Level measurement apparatus for coke oven carbonization chamber comprising a.
The method of claim 1,
Level measuring apparatus for the coke oven carbonization chamber further comprises an auxiliary sensing unit for measuring the moving distance of the beam unit.
3. The method of claim 2,
And a control unit for calculating the level of the coal or the coke based on the sensing values received from the sensing unit and the auxiliary sensing unit.
delete The method of claim 1,
And a gas discharge unit for recovering the gas reflected by the light reflection unit.
delete The method of claim 1,
And a lifting and lowering driving unit for elevating the sensing unit and the beam unit in the height direction of the carbonization chamber.
Coke oven for measuring the level of coal and coke in the carbonization chamber,
A sensing unit installed outside the carbonization chamber and measuring a distance by using a laser beam;
An optical channel unit providing a reciprocating path of light exiting the sensing unit and entering the sensing unit;
A light reflection unit disposed at one end of the optical channel unit and reflecting light from the sensing unit into the carbonization chamber through the optical channel unit to the coal or coke side and reflecting light from the coal or coke side to the sensing unit;
A beam part mounted with the optical channel part and moving in the longitudinal direction of the carbonization chamber and moving the light reflection part; And
A shutter unit coupled to the optical channel unit and selectively opening or closing a hole or outlet located between the light reflection unit and the coal.
Level measurement apparatus for coke oven carbonization chamber comprising a.
Coke oven for measuring the level of coal and coke in the carbonization chamber,
A sensing unit installed outside the carbonization chamber and measuring a distance by using a laser beam;
An optical channel unit providing a reciprocating path of light exiting the sensing unit and entering the sensing unit;
A light reflection unit disposed at one end of the optical channel unit and reflecting light from the sensing unit into the carbonization chamber through the optical channel unit to the coal or coke side and reflecting light from the coal or coke side to the sensing unit; And
A beam part mounted with the optical channel part and moving in the longitudinal direction of the carbonization chamber and moving the light reflection part;
Lt; / RTI >
The beam unit level measuring device for the coke oven carbonization chamber characterized in that it comprises a ladder-level leveler bar (Leveler bar).
10. The method of claim 9,
And the optical channel portion extends in a longitudinal direction of the leveler bar at a side portion, a center portion, or an edge portion of the leveler bar.

Images