KR20010063896A - Remote lookout system using in the wind hole of the blast furnast - Google Patents

Abstract

PURPOSE: A system for remote monitoring a tuyere of a blast furnace is provided which remotely inspects conditions inside the blast furnace so as to prevent that an operator of the blast furnace is exposed to dangers that are still in existence surrounding the blast furnace since the operator directly checks the conditions inside the blast furnace with the naked eye. CONSTITUTION: In a remote monitoring apparatus for monitoring conditions of pyrites falling and pulverized coal combustion inside a blast furnace (1) through the observatory window of a tuyere in the blast furnace, the apparatus comprises a circular rail (10) installed along the tuyere in the circumferential direction of the blast furnace; an automatic running system transferable installed along the circular rail; a transferable camera (13) interlocked to the transfer of the automatic running system; a cooling system for cooling the camera; and an operation part storing information on the conditions inside the blast furnace transmitted from the camera.

Description

Remote lookout system using in the wind hole of the blast furnast}

The present invention relates to a blast furnace wind ball remote monitoring system for monitoring the internal combustion zone of the blast furnace through the tuyere, in particular the rotation of the tuyere while rotating along the circular rail around the blast furnace to determine the operation situation of the blast furnace The present invention relates to a blast-furnace remote monitoring system that can remotely transmit and process data on combustion conditions in a blast furnace.

In general, the blast furnace operation, as shown in Figure 1, the operation of producing the molten iron by supplying hot air through the tuyere as a heat source for the molten reduction after charging the fuel and the raw material in the raw material process in the blast furnace (1). to be. For example, in the blast furnace, 34 pieces are provided in the circumferential direction so as to uniformly supply hot air into the blast furnace.

On the other hand, the blast furnace manufacturer periodically checks the situation inside the blast furnace through the observation window 3 of the blast furnace 1 in the horizontal direction at the curved portion of the blower pipe (30). That is, the blast furnace operator can predict the high and low heat of the furnace by observing the combustion state of the iron ore, that is, the brightness at the tip of the tuyere in detail, and check whether the attachment of the furnace wall blocks the tip of the tuyere where the wind is supplied. Check the coolant leakage condition.

The above-mentioned blast furnace internal observation of the blast furnace operator is generally performed to check the pulverized coal combustion state and the falling light state inside the blast furnace, and conventionally observes the blast furnace inside the blast furnace by using a windshield, that is, a shading lens. The window monitors the burning conditions inside the blast furnace and visually monitors for damage to the blasts.

However, as described above, when the blast furnace operator visually checks the situation inside the blast furnace, the blast furnace operator is visually inspected in the blast furnace because the blast furnace gas generated while producing molten iron from the blast furnace remains around the blast furnace. The situation is accompanied by the problem of being exposed to gas poisoning and being exposed to safety accidents around the blast furnace.

In order to solve the conventional problems as described above, the present invention is to allow the blast furnace operators to visually check the situation inside the blast furnace, so that the blast furnace workers can be exposed to the danger existing in the vicinity of the blast furnace inside the blast furnace remotely The purpose is to provide a blast furnace balloon remote monitoring system that can check the situation.

According to the present invention, the blast furnace airway remote monitoring system for achieving the above object is a monitoring means for transmitting the data on the combustion state of the blast furnace observed through the blast groove while moving along the annular rail installed along the blast furnace bottom; A control unit for controlling the movement of the monitoring means and processing data transmitted from the monitoring means, and an output unit for displaying the data processed by the control unit.

1 is a view showing that the hot air supply pipe is installed in the blast furnace tuyere according to a conventional embodiment.

2 is a view showing that the monitoring camera is located in the blast furnace tuyere according to an embodiment of the present invention.

Figure 3 is a view showing that the annular rail is mounted around the blast furnace tuyere according to an embodiment of the present invention.

4 is a conceptual diagram illustrating a system in which a camera is operated according to an embodiment of the present invention.

5 is a flowchart illustrating a state in which a camera operates according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

10: annular rail

11: Reduced Motor

12: Modular Robot

13: camera

21: cooling system

24: calculation unit

25: output unit

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention, wherein the same configuration as the conventional configuration uses the same reference numerals.

2 to 5, the light fall state and the pulverized coal combustion state is confirmed through the observation window 3 installed in the wind flow path, that is, the wind hole 1 installed to generate the combustion zone with the blast furnace ore and the high temperature wind. The annular rail 10 is installed in the circumferential direction of the blast furnace along the blast holes at the bottom of the blast furnace. On the annular rail 10, a monitoring means for observing the state inside the blast furnace 1 is mounted to be movable.

The monitoring means includes a camera 13 for transmitting the state inside the blast furnace as an image, cooling means 21 for cooling the camera 13, and moving the camera 13 along the annular rail 10. It consists of deceleration motor (ARS). On the other hand, the monitoring means further comprises a module robot 12 for transferring the reduction motor to rotate to a specific position along the annular rail.

In addition, the windball monitoring system according to the present invention stores the image data of the live light fall state and the pulverized coal combustion state in the blast furnace input from the monitoring means, and also to transfer the deceleration motor to the location of the specific windhole to be monitored. A control unit for adjusting the module robot 12, a monitoring unit and a power supply unit 27 for supplying power to the control unit, switching means for switching the operation of the monitoring unit to automatic operation or manual operation, and data transmitted from the monitoring unit. It further includes an output unit 25 for displaying.

Therefore, in order to produce molten iron, the raw light fall state and the pulverized coal combustion state through the observation window (3) on the blast furnace (2) installed in the lower part of the blast furnace to generate the combustion zone by the ore including the blast furnace raw ore and pulverized coal and high heat An annular rail 10 is installed along the tuyere 2 in the circumferential direction of the blast furnace in order to observe, and a reduction motor for transporting the monitoring means along the annular rail 10 is mounted on the annular rail.

The camera mounted on the reduction motor moves in conjunction with the transmission of the reduction motor and transmits the data of the result of observing the state of the blast furnace through the observation window on the wind hole to the control unit. The controller is controlled by the gear motor.

On the other hand, the camera for transmitting the image of the interior of the blast furnace through the observation window on the blast blast records the flame image of the blast furnace and transmits it to the controller, so that the surrounding area of the blast furnace to check the input state of the ignition material injected into the blast furnace It is mounted on the module robot mounted on the reduction motor which moves in a circular shape. On the other hand, since the blast furnace is a high temperature area, a cooling system is installed to improve camera performance.

The operation state of the blast furnace airflow remote monitoring system according to the present invention configured as described above will be described as follows.

First, in the blast furnace molten metal production operation, when the driver instructs the automatic operation of the remote monitoring system to check the falling light state and pulverized coal combustion state, the deceleration motor (ARS) is a blast furnace along the circular rail at a predetermined speed Observe the state inside. For example, if a position sensor is installed around the tuyere, and the moving deceleration motor is close to the sensor, the moving speed is decelerated and the motor is completely stopped before the position sensor. For example, when moving the module robot and passing the position sensor [R] point, the deceleration motor (ARS) reaches 80%. Move.

At this time, the camera 11 observes the state of the blast furnace through the observation window (3) of the tuyere.

That is, when the image data is stored in the control room calculation unit, the camera 11 stops operation, generates a movement command to the camera standby position, and when the operation is completed by the module robot return detection sensor, the deceleration motor is operated at 100% speed. Move to position 2.

Then, when passing the position sensor [R] point during movement, the deceleration motor is made to counteract the operation as described above.

Repeat this process to move to the wind hole observation window 34 to extract the image data is terminated.

In addition, after capturing the image data by automatic operation, if an abnormality of the internal combustion chamber in the windball occurs, manual operation is also possible for intensive monitoring. That is, for example, if you want to intensively monitor the number 27, the deceleration motor moves to the position 27 at 100% speed and stops, and the camera monitors the number 27.

That is, when the camera passes the position sensor [R] point while moving toward the target air vent, when the ARS arrives at the position sensor [C] after 80% deceleration first, the modular robot system generates the target air vent, for example, the air vent 27 Go to the observation window. When the camera reaches the 27th observation window, the module robot will stand by.

At this time, the CCD camera operates to capture the inside of the tuyere, and then transmits and stores the image data to the control room computing unit. When the image data is stored in the control room computing unit, the CCD camera stops operation, moves to the CCD camera standby position, and waits at the current position.

The above is summarized as follows.

In other words, through the furnace wind hole (2) observation window (3), the blast furnace for checking the light fall state and the pulverized coal combustion state inside the blast furnace, the annular rail 10 is installed on the basis of 34 wind holes installed in the circumferential direction of the furnace The automatic driving system (ARS) that transfers the monitoring device along the annular rail (10), that is, the deceleration motor (11), and the CCD camera (13) for transmitting the situation inside the tuyere through the tuyere observation window as an image. ), A cooling system 21 having a cooling device for cooling the camera, and a module robot 12 which is a transfer device for transferring the CCD camera and the cooling system to a monitoring position of a target wind hole after turning the annular rail. It is composed.

In addition, the windball monitoring device stores data of the light fall state and the pulverized coal combustion state inside the furnace input from the monitoring device, and the cooling system 21, the CCD camera 13, and the module robot ( 12) further includes an operation unit for controlling the automatic driving system.

In addition, the windball monitoring device includes a power supply unit 27 for supplying power, an input unit 26 for inputting a target windball to be monitored by both automatic and manual operation, and falling light and pulverized coal inside the furnace imaged by the monitoring device. It is composed of an output unit indicating a combustion state.

Accordingly, according to the present invention, the blast furnace tuyere is automatically tracked by a program that uses a module robot to image the camera, and the flame image is transmitted to the computer of the central cab as image data, such as falling ore and pulverized coal combustion. By remotely monitoring the ignition state, it is possible to determine and cope with the operation situation in advance in terms of safety and facilities, and also to perform effective operation by storing and managing such data as operation data.

The foregoing is merely illustrative of the preferred embodiments of the present invention and those skilled in the art to which the present invention pertains may make modifications and changes to the present invention without departing from the spirit and gist of the invention as set forth in the appended claims. It should be recognized.

Claims (2)

In the remote monitoring device for monitoring the falling state of live light and pulverized coal in the blast furnace through the observation window of the furnace blast hole, An annular rail provided along the tuyere in the circumferential direction of the blast furnace, An automatic driving system installed to be movable along the annular rail; A camera movable in association with the movement of the automatic driving system; A cooling system for cooling the camera, Remote monitoring device, characterized in that consisting of a calculation unit for storing information about the blast furnace internal situation transmitted from the camera. The remote monitoring apparatus according to claim 1, further comprising a module robot for controlling movement of the automatic driving system, wherein the calculating unit controls the operation of the cooling system, the camera, the automatic driving system, and the module robot.