KR20010063521A - Apparatus for removing the foreign substance from the surface of the tap hole in the blast furnace - Google Patents

Abstract

The present invention relates to an outgoing surface impurity removal device for automatically removing the melt, such as reduced, molten slag and molten iron in the outgoing surface and the inside of the blast furnace attached to the exit opening when the exit opening, the hook is attached to one end A support for supporting one or more multi-fracture robotic arms, a moving means for reciprocating the support between a work position above the outlet and a standby position spaced apart from the outlet, and wherein the support is in the work position While the hook is characterized in that it consists of a control means for remotely controlling the multi-fracture robot arm to remove the foreign matter attached to the exit surface, the blast furnace worker, the exit port and around the exit port for closing Splash cover when removing adherent melt of impurities such as slag and molten iron attached Is exposed to the above radiation and heat, gas or dust may be exposed to the risk of accidents and prevent or increased workload in this area.

Description

Apparatus for removing the foreign substance from the surface of the tap hole in the blast furnace}

The present invention relates to a device for removing impurities attached to and around the exit port surface, and in particular, when the exit port is closed, the molten material, such as slag and molten iron, reduced and melted in the exit port surface and the furnace attached to the surrounding area, etc. The present invention relates to an outgoing spherical surface impurity removal device for removal.

In general, the melt melt reduced in the furnace is shown through a tap opening 1 which is opened using a single bit (not shown) mounted to an opening, as shown in FIG. 1. It is discharged to the outside of the furnace, that is, to the large bath covered with the cover 5.

And, in the large hot water, slag (slag) by the difference in specific gravity, the slag with a small specific gravity is separated through the skimmer (skimmer) to the top of the skimmer and the large specific water is separated to the bottom of the skimmer.

Then, the separated molten water arrives in the raceway through the molten water (Daetangdo) (5) and is repaired by a torpedoladle car.

On the other hand, the slag separated through the skimmer is treated by the slag granurtion that passes through the large baths and the slag granules in the aggregate treatment plant or finer it.

As described above, the exit port 1 is closed by using a mud gun (not shown) that closes the exit port 1 at the completion of the discharge of the melt, that is, the molten metal and the slag from the furnace. Next, opening the exit port (1) in the other direction is to be made a continuous departure.

In the process of repeating the starting work, there are the following problems in management when closing the starting port (1).

First, the molten metal (2), such as slag and sediment attached to the front of the outlet opening (1) when the molten iron is drawn out, must be removed in order to completely close the outlet, and the melt that is scattered during the removal operation of the melt This exposes workers to the risk of burn injury.

Second, in order to close the exit port (1), the worker must remove the attachment melt (2) to clean up the exit port, but due to the characteristics of the front part of the exit port, This increases the workload of the worker 4 and also exposes the worker to burn hazard.

Third, since dust and gas workers generated while leaving ships are exposed as they are, workers are exposed to dangerous working environments with burns and gas poisoning disasters.

The present invention has been made to solve the problems as described above, when the blast furnace worker removes the molten metal of the impurities such as slag and molten iron attached to the exit port and its surroundings for closing the exit port, the splash cover ( It is an object of the present invention to provide an impurity removal device that can prevent exposure to radiation heat, high heat, gas or dust, and the risk of safety accidents or increase the workload in these areas.

According to the present invention, in order to achieve the above object, the tapping-out surface impurity removing device has a pneumatic monitoring camera 13 in front of the taping-out opening 1 and the driving motor of the present invention (11ab), the hydraulic box (15), the robot arm (10ab) and hook (9ab) for removing the now, and the oxygen injection nozzle (8ab) for removing the deposits remaining after the removal now, and the impurity removal device is exactly It consists of a stop limit for stopping at a point.

1 is a view showing a working state of removing the now on the exit port in accordance with a conventional embodiment.

2 is a view showing a working state for removing residual charge on the exit port with oxygen according to a conventional embodiment.

Figure 3 is a schematic illustration of the now removing device on the exit port in accordance with an embodiment of the present invention.

Figures 4 (a), (b) and (c) are diagrams showing a working state of removing the now on the exit port in accordance with an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

8a, 8b: oxygen spray nozzle

9a, 9b: hook

10a, 10b: robot arm

11a, 11b: moving motor

12: rail

13: reflex surveillance camera

15: hydraulic box

16: stop limit

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings as follows and the same configuration adopts the same reference numerals.

3 is a view schematically showing the configuration of an impurity removal device according to an embodiment of the present invention, Figure 4 (a), (b) and (c) is an operating state of the impurity removal device according to an embodiment of the present invention Figure is a diagram.

First, according to the embodiment of the present invention, the starting spherical surface impurity removing apparatus has a pair of supports for supporting one or more multi-fracture robot arms 10a and 10b having hooks 9a and 9b attached to one end thereof.

Since the support is connected to the moving motors 11a and 11b reciprocating along the rail 12 which is generally installed in the transverse direction on the upper surface of the exit port 1, the moving motors 11a and 11b are connected. As the rail 12 moves between the working position of the upper end of the outlet opening 1 and the standby position spaced apart from the outlet opening 1, it is reciprocated in conjunction with this.

On the other hand, the adjusting means including the hydraulic box 15 is to remove the foreign matter (2), such as slag or molten iron attached to the exit port surface while the hook (9a, 9b) while the support is in the working position. In order to be able to control the multi-fracture robot arm (10a, 10b).

At this time, the multi-fracture robot arm (10a, 10b) to spray the gas to the exit port (1), so as to remove the adhered foreign matter (2) remaining after the removal of the meat (9a, 9b) The nozzles 8a and 8b are mounted, respectively.

According to one embodiment of the present invention, the impurity removal device includes monitoring means including a pneumatic surveillance camera 13 for monitoring around the exit port to monitor the operation of removing the adherent foreign material 2 on the exit port 1 surface. And stop means such as a limit 16 provided on the rail 12 to stop the support at the working position.

That is, a rail 12 made of an H beam or the like is attached to the top of the exit port 1, and a hydraulic drive box 15 is provided at a side side to drive an impurity removal device, and oxygen content is immediately above it. There is a use electronic valve 14 and a resonance monitoring camera 13, and a moving motor 11a is mounted on the rail 12 of the H beam for the movement of the impurity removal device.

Then, the stop limit 16 is attached to the H-beam 12 so that the removal device according to the present invention can be stopped exactly at the center point of the exit port 1. The robot arms 10a and 10b of the present invention are attached to the lower parts of the moving motors 11a and 11b, and hooks 9a and 9b for removing impurity openings are attached to the tip of the robot arm.

In addition, oxygen spray nozzles 8a and 8b are respectively attached to intermediate portions of the robot arms 10a and 10b in order to completely remove residual foreign matter remaining on the exit opening after removing impurities by the hooks 9a and 9b.

Referring to the operation of the present invention installed in the above configuration is as follows.

First, when the tapping opening 1 is generated, it is detected by the camera 13, and when the processor receives the signal and sends the signal to a controller (not shown), the controller transmits a signal to each device. The driving of the impurity removal device according to the above is started.

At this time, as shown in Figure 4, the driving procedure of the impurity removal device, first, when the moving motor (11a, 11b) is driven, the robot arm (10a, 10b) is moved toward the exit port 1, the stop limit 16 Stop at the starting point (1) center.

Thereafter, the hydraulic box 15 is driven and the robot arms 10a and 10b extended by hydraulic pressure are folded, and the impurities attached to the tap opening 1 by the hooks 9ab, which are the hands of the folded robot arms 10a and 10b, are attached. Remove (2).

Subsequently, the oxygen injection electron valve 14 is opened to inject oxygen through the oxygen injection nozzle 8ab to completely remove a small amount of foreign matter remaining after the removal.

Thereafter, after the impurity removal device of the present invention returns to its original position in the reverse order of the driving procedure according to the embodiment of the present invention, the tap opening 1 is closed by the mud gun, and the operation is terminated.

Therefore, according to the present invention, the worker was exposed to dust, gas, radiant heat, and fugitive molten metal during the removal of the attached melt around the exit port, and thus performed unstable work due to the worker's work avoidance phenomenon. By using a separate impurity removal device, the operator can perform a stable operation and can prevent the occurrence of frequent burn disasters due to the melt that is scattered.

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 (4)

In the device for removing foreign matter adhering on the exit surface of the blast furnace, A support for supporting one or more multi-fracture robotic arms with hooks attached at one end thereof, Moving means for reciprocating the support between a work position above the outlet and a standby position spaced apart from the outlet; And a control means for remotely controlling the multi-fracture robot arm so that the hook can remove the foreign matter attached to the exit hole surface while the support is in the working position. According to claim 1, wherein the multi-fracture robot arm is equipped with a gas injection nozzle for injecting gas to the exit port to remove the foreign matter, the gas supply means for supplying the gas to the gas injection nozzle at high pressure Debris removal device, characterized in that it further comprises. The foreign substance removing apparatus according to claim 1 or 2, further comprising monitoring means for monitoring a task of removing the foreign substance on the exit opening surface. The foreign matter removing apparatus according to claim 1, wherein the moving means is provided with a stopping means for stopping the support at the working position.