KR101834959B1 - Apparatus for monitoring temperature of tundish - Google Patents

Abstract

The present invention provides an apparatus for measuring the temperature of a tundish, which comprises: a probe; a lifting unit lifting the probe; an arm unit coupled to the lifting unit; and a support unit supporting the arm unit. The arm unit has a multistage frame, a chain unit connected to the frame, and a drive unit winding the chain unit.

Description

[0001] APPARATUS FOR MONITORING TEMPERATURE OF TUNDISH [0002]

The embodiment relates to a tundish temperature measuring apparatus.

In general, in the continuous casting operation, when a certain amount of molten steel is filled by injecting the molten steel contained in the ladle into the tundish, and when the impurities and nonmetal inclusions contained in the molten steel are separated from each other, the lower sliding gate of the tundish is opened, .

The temperature of molten steel is a very important factor that determines production and quality in continuous casting operations. Therefore, the temperature of the molten steel injected from the ladle into the tundish is often measured.

Korean Patent No. 10-0992315 (published on October 29, 2010, hereinafter referred to as "the present document") discloses a molten steel temperature measuring apparatus for measuring the temperature of molten steel.

The molten steel temperature measuring apparatus of this document is provided with the temperature measuring means coupled to the apparatus body, and the apparatus body is rotatably disposed on the gear box. However, such a configuration has a problem in that the structure of the device body is very complicated because the device body rotates through the motor and the bearing. Also, since the device body rotates, the operator may be in danger.

Korean Patent No. 10-0992315 (2010. 29th Announcement)

To solve the above-described problems, an embodiment of the present invention is to provide a tundish temperature measuring device that is simple in structure and can secure the safety of an operator.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned here can be understood by those skilled in the art from the following description.

An embodiment includes a probe, an elevating portion for moving the probe up and down, an arm portion for engaging with the elevating portion, and a supporting portion for supporting the arm portion, wherein the arm portion includes a multi- And a driving unit for winding the chain unit.

Preferably, the frame is inclined so that the frame is extended in the longitudinal direction by releasing the chain by the weight of the elevating unit and the probe until the elevation unit is aligned with the tundish hall. .

Preferably, the support portion supports the arm portion at a height equal to or higher than a predetermined height such that the lower end of the lifting portion is positioned higher than the tundish at the maximum extension of the frame.

Preferably, the arm portion may include a plurality of toothed gears disposed in the frame and meshing with the chain portion.

Preferably, the arm portion may include a plurality of rolls guiding the chain portion or the toothed gear.

Preferably, the arm portion may further include a stopper for restricting movement of the frame when the elevation portion is aligned with the tundish hall.

Advantageously, the stopper may include a pneumatic cylinder interlocked with longitudinal extension of the frame.

Preferably, the elevating portion includes a guide frame coupled to a front end of the frame, a lance coupled to the guide frame so as to be movable up and down along the guide frame, And a lifting mouth portion for lifting the lifting base.

Advantageously, the lance may include a holder detachably coupled to the probe.

Preferably, the probe may further include a probe detachable unit detachably attaching the probe to the lifting unit.

Preferably, the probe attachment / detachment portion may be disposed below the elevation portion positioned at the time of maximum shrinkage of the frame.

Preferably, the probe attachment / detachment unit includes a body and a clamping unit mounted on the body, the clamping unit clamping the prosection and moving linearly.

According to the embodiment, the probe is arranged to be aligned with the tundish hole only by its own weight without a separate rotating device, so that the structure is simple, and an advantageous effect of securing the safety of the operator is provided.

1 is a view showing a position of a tundish temperature measuring apparatus according to an embodiment,
2 is a view showing a tundish temperature measuring apparatus according to an embodiment,
FIG. 3 is a view showing the elevating portion shown in FIG. 2,
FIG. 4 is a view showing the arm portion shown in FIG. 2,
FIG. 5 is a view showing a probe attaching / detaching unit shown in FIG. 2. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms and the inventor should properly define the concept of the term in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

1 is a view showing a position of a tundish temperature measuring apparatus according to an embodiment.

Referring to FIG. 1, a tundish 2 is disposed under the ladle 1. The molten steel contained in the ladle 1 is supplied to the tundish 2. The tundish 2 is covered by the cover 3. The cover (2) includes a tundish hole (3a) through which the probe (100) penetrates.

The tundish temperature measuring device 10 according to the embodiment is arranged adjacent to the tundish 2 because there is no rotating configuration.

2 is a view showing a tundish temperature measuring apparatus according to an embodiment.

Referring to FIG. 2, the probe 100 may include a probe 100, a lift unit 200, an arm unit 300, a support unit 400, and a probe attachment / detachment unit 500. The arm portion 300 is fixed on the support portion 4000. The elevation portion 200 is coupled to the tip of the arm portion 300. The probe 100 is coupled to the tip of the lift portion 200. The probe 100 is rotated The temperature of the molten steel in the dish 10 is measured. The probe 100 is formed long in the longitudinal direction.

Fig. 3 is a view showing the elevating portion shown in Fig. 2. Fig.

Referring to FIG. 3, the lifting unit 200 may include a guide frame 210, a lance 220, and an elevation driving unit 230.

The guide frame 210 is engaged with the frame 310 of the arm portion 300. The guide frame 210 may be disposed perpendicular to the paper so that the direction of gravity is the longitudinal direction. The lance 220 is movably coupled to the guide frame 210 and moves up and down along the guide frame 210. The lance 220 includes a holder 221. The probe (100) is detachably coupled to the holder (221). The elevation driving unit 230 may be disposed above the guide frame 210. The lifting drive unit 230 may include power transmission means for connecting the rotation shaft of the motor and the motor to the lance 220. The elevating drive unit 230 may be provided with a plurality of motors having different axial directions. When the lifting drive unit 230 is driven, the lance 220 moves up and down and the probe 100 moves up and down.

Fig. 4 is a view showing the arm portion shown in Fig. 2. Fig.

2 and 4, the arm portion 300 includes a multi-stage frame 310, a chain portion 320, a driving portion 330, a toothed gear 340, a roll 350, a stopper 360).

The frame 310 is a telescopic type, and a plurality of inner frames are arranged in a multistage manner and are provided so as to be extendable in the longitudinal direction. At this time, the frame 310 is disposed to be inclined at a predetermined angle (R, for example, 20 degrees) to the support unit 400 horizontal to the ground. Accordingly, the inner frames can be stretched in the longitudinal direction only by the weight of the frame 310 itself. The frame 310 is extended by the weight of the frame 310 and the lifting unit 200 because the lifting unit 200 is coupled to the tip of the frame 310.

The chain portion 320 is disposed so as to be movable along the inside of the frame 310 in connection with the inner frames disposed inside the frame 310. The chain portion 320 guides the inner frames of the frame 310 to move stepwise by their own weight.

The driving unit 330 is connected to the chain unit 320. The driving unit 330 may be configured to wrap the chain unit 320 and pull the inner frames of the extended frame 310 to reduce the length of the frame 310 can do.

The toothed gear 340 is rotatably disposed on the frame 310 and is arranged to mesh with the chain portion 320. The toothed gear 340 serves to adjust the extension speed so that the frame 310 does not expand too quickly due to its own weight. The plurality of gear teeth 340 may be disposed along the longitudinal direction of the frame 310. Also, the toothed gear 340 may be disposed inside the frame 310 to engage with the chain portion 320.

The roll 350 is disposed in the frame 310 and serves to guide the chain portion 320 or the toothed gear 340. A plurality of such rolls 350 may be disposed.

The stopper 360 serves to restrain the movement of the frame 310 whose length is extended by its own weight at the target position. Here, the target position indicates a position where the probe 100 coupled to the lifting unit 200 is aligned with the tundish hole 3a. The stopper 360 may be a pneumatic cylinder interlocked with the extension of the frame 310.

The arm portion 300 extends in the longitudinal direction by its own weight and is reduced in the longitudinal direction by the driving force of the driving portion 330. When the arm portion 300 is extended in the longitudinal direction, the elevation portion 200 is aligned with the tundish hole 3a. When the arm portion 300 is contracted in the longitudinal direction, the elevation portion 200 contacts the probe detachable portion 500, .

When the lifting part 200 is aligned with the tundish hole 3a, the lance 220 of the lifting part 200 descends and the probe 100 passes through the tundish hole 3a. The probe 100 penetrating the tundish hall 3a is immersed in the molten steel contained in the tundish 100 to measure the temperature of the molten steel. When the temperature measurement of the molten steel is completed, the lance 220 of the lifting unit 200 moves upward, and the probe 100 returns to the outside of the tundish 100. Thereafter, when the driving unit 330 is driven and the arm unit 300 is contracted, the lifting unit 200 is aligned with the probe detachable unit 500. Thereafter, the lance 220 descends to the probe attachment / detachment unit 500, the used probe 100 is removed by the probe attachment / detachment unit 500, and a new probe 100 is attached to the lance 220.

FIG. 5 is a view showing a probe attaching / detaching unit shown in FIG. 2. FIG.

2 and 5, the probe detachable part 500 may be disposed below the lifting part 200 located at the time of the maximum reduction of the frame 310. [ The probe detachable part 500 may include a body 510 and a clamping part 520. The body 510 is disposed on the ground. The body 510 has a constant height. The clamping portion 520 is mounted on the body 520. The clamping unit 520 may clamp the used probe 100 and remove it from the holder 210 of the lance 220 (210 in FIG. 3). Then, the new probe 100 can be clamped and mounted on a holder (210 in FIG. 3). The clamping portion 520 may include two cylinders 521 each for applying clamping force and for moving the clamping portion 520 forward or backward. On the other hand, the used probe 100 may be stored in a waste probe storage unit (600 in FIG. 2) disposed in an empty space of the support unit 400.

As described above, the tundish temperature measuring apparatus according to one preferred embodiment of the present invention has been specifically described with reference to the accompanying drawings.

It is to be understood that one embodiment of the invention described above is to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

100: Probe
200:
210: guide frame
220: Lance
230:
300:
310: frame
320:
330:
340: Toothed gear
350: roll
360: Stopper
400: Support
500: probe detachable part

Claims (12)

Probe;
An elevating portion for moving the probe up and down;
An arm portion coupled with the elevating portion;
And a support portion for supporting the arm portion,
The arm portion includes a multistage frame, a chain portion connected to the frame, and a driving portion for winding the chain portion,
Wherein the frame is inclined so that the frame is extended in the longitudinal direction by releasing the chain portion by the weight of the elevating portion and the probe, and the arm portion includes a stopper and a toothed gear, Wherein the gear is rotatably disposed on the frame and is engaged with the chain portion to adjust an expansion speed of the frame when the frame is aligned with the hole, ,
And a probe attaching / detaching unit for detachably attaching the probe to the lifting unit,
When the arm portion is expanded, the elevating portion is aligned with the tundish hall,
And wherein when the arm portion is contracted, the tundish temperature measuring device is aligned with the probe detachable portion. delete The method according to claim 1,
Wherein the supporting portion supports the arm portion at a height equal to or higher than a predetermined height such that the lower end of the lifting portion is positioned higher than the tundish at the maximum extension of the frame. delete The method according to claim 1,
Wherein the arm portion includes a plurality of rolls for guiding the chain portion or the toothed gear. delete delete The method according to claim 1,
The elevating portion
A guide frame coupled to a front end of the frame;
A lance which is coupled to the guide frame so as to be movable up and down along the guide frame and to which the probe is coupled at its tip;
And an elevation driving unit connected to the lance to provide a driving force. 9. The method of claim 8,
Wherein the lance includes a holder detachably coupled to the probe. delete The method according to claim 1,
Wherein the probe attachment / detachment portion is disposed below the elevation portion positioned at the time of maximum shrinkage of the frame. The method according to claim 1,
The probe attachment /
Body; and
And a clamping unit mounted on the body, the clamping unit clamping the probe and linearly moving the clamping unit.

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