KR200328149Y1 - An apparatus for exchanging and celaning the nozzel in the continous casting process - Google Patents

Abstract

The present invention includes a cleaning part including an upper body, a lower body facing the upper body up and down, cleaning means fixed to the outside of the upper body and the lower body, bearings fixed to the inner wall surface of the upper body and the lower body; And a housing mounted between the upper body and the lower body, the housing having a locking portion at an end thereof, a shaft mounted inside the housing, and a stopper mounted to be pivotable at an end of the shaft and swinging at the locking portion. And a motor for driving the upper body and the lower body, a reducer driven by the motor, a tundish support for supporting the reducer at upper and lower ends, a reducer shaft extending from one side of the reducer, and Characterized in that it comprises a transfer unit consisting of a cylinder mounted between the reducer shaft The playing hot tundish nozzle cleaning and replacement device as a base.

Description

An apparatus for exchanging and celaning the nozzel in the continous casting process}

The present invention relates to a playing hot tundish nozzle cleaning and replacement apparatus, and in particular, the upper tundish nozzle can be replaced in the hot state after the completion of the casting operation, and now or adsorption material solidified inside the well block is cleaned with a cleaning apparatus. The present invention relates to a playing hot twirl nozzle cleaning and replacement device that can improve slab quality by removing and blocking the flow into the tundish.

FIG. 1 is a view showing a general playing process layout, and FIG. 2 is a view showing a conventional tundish nozzle replacement device and a tundish sub-nozzle. In general, the hot tundish 100a is a recent technique for performing operation in the steelmaking industry. Due to the rapid development, the operation ratio is increasing, and accordingly, the importance of using the hot tundish (100a) in accordance with the diversification, high-quality, large-sized equipment of the production product is increasing.

The hot tundish 100a may be reused for at least several times in succession by replacing only the upper nozzle 100b after completely removing the remaining molten steel and slag in the tundish 100a in the hot state after completion of the casting operation.

Conventionally, the following problems have arisen by using a primitive method to remove the upper nozzle 100b and to completely remove the inside of the tundish 100a well block 100f.

First, when the upper nozzle 100b is replaced, the slab quality cannot be completely removed with the tooth tool or the adsorbent material 100f inside the well block 100f cannot be completely removed.

It is difficult to insert the nozzle 100b properly because of the adsorption material and now when replacing the new upper nozzle 100b.

Second, by replacing the upper nozzle (100b) in the hot state using a tool, there is a risk of worker burn and safety accidents.

Third, when the upper nozzle 100b is replaced with the replacement handle 100d, the upper nozzle 100b is

It breaks and breaks, making the work environment worse,

Burnout may cause secondary damage.

Fourth, if you prepare two tongs (100d) to prevent such a problem

As a result, it is difficult to secure the tundish 100a in the hot state, which is the fundamental purpose, and the casting delay occurs because the tundish 100a preheating time is long.

The present invention is to solve the above-mentioned problems, it is possible to replace the upper tundish nozzle in the hot state and to prevent the inflow into the tundish by removing the now or adsorbent material solidified inside the well block with a cleaning device The present invention relates to a hot rolling dish cleaning and replacement apparatus.

The above object is a cleaning part including an upper body, a lower body facing the upper body up and down, cleaning means fixed to the outside of the upper body and the lower body, bearings fixed to the inner wall surface of the upper body and the lower body; And a housing mounted between the upper body and the lower body, the housing having a locking portion at an end thereof, a shaft mounted inside the housing, and a stopper mounted to be pivotable at an end of the shaft and swinging at the locking portion. A replacement unit, a motor for driving the upper body and the lower body, a reducer driven by the motor, a tundish support for supporting the reducer at upper and lower ends, a reducer shaft extending from one side of the reducer, Consists of a transfer unit consisting of a cylinder mounted between the reducer shaft It is achieved by playing hot tundish nozzle cleaning and replacement apparatus as ranging.

1 is a view showing a general playing process layout.

Figure 2 is a view showing a conventional tundish nozzle replacement apparatus and tundish nozzle.

Figure 3 is a perspective view for explaining the body portion of the cleaning device of the present invention.

4 shows a nozzle changer shaft and a stopper.

5 is a view for explaining a shaft body of the nozzle replacement device.

Figure 6 is a view of the nozzle replacement device of the present invention is completed.

7 is a view showing a state in which the cleaning device according to the present invention is completed.

8 shows a nozzle removal device and a power train for cleaning.

9 is a view showing a cleaning device and a nozzle replacement device of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: upper body 3: cleaning means

6: Bearing 8: Coupling

10: Shaft 13: Stopper

19: catch part 25: cylinder

27: Reducer 30: Motor

100a: tundish 102b: upper nozzle

100c: cassette 100d: upper nozzle clamp

100e: month block 100f: now, adsorption material

A: replacement part B: cleaning part

C: transfer section

Hereinafter, with reference to the accompanying drawings will be described the configuration of the present invention.

Figure 3 is a perspective view for explaining the body portion of the cleaning device of the present invention, Figure 4 is a view showing a nozzle replacement device shaft and a stopper, Figure 5 is a view for explaining a shaft body of the nozzle replacement device, Figure 6 The nozzle replacement apparatus of the present invention is a complete view, and FIG. 7 is a view illustrating a state in which the cleaning device according to the present invention is completed, and replaces the upper nozzle 100b of the well block 100e in the tundish 100a. It consists of a replacement part (A) for cleaning, and a cleaning part (B) including upper and lower teeth (3), (4) and cleaning bodies (1, 2) for cleaning the well block (100e). .

The cleaning part B is composed of a cleaning device upper body 1, a lower body 2, and cleaning means 3 and 4 fixed to the outer side of the upper body and the lower body. Consists of carbon steel. Bearing fixing holes 37, 37a, 38, 38a are formed on the inner wall surfaces of the upper body 1 and the lower body 2. Bearings 6 and 7 are mounted in the bearing fixing holes 37, 37a, 38 and 38a. Further, coupling keys 1a and 2a are formed at the rear ends of the upper body 1 and the lower body 2. Couplings 8 and 9 are attached to the coupling keys 1a and 2a, respectively.

The replacement portion (A) is composed of a locking portion (19) formed at the end of the housing 22, the opening 18 is formed in the upper and lower portions of the locking portion. In addition, the shaft 10 is mounted inside the housing so as to be able to move horizontally. A groove 11 is formed at an end of the shaft 10, and the stopper 13 is pivotable by a key 13a in the groove. Is mounted, the shaft hole 15 is formed on the shaft groove 15 is configured so that the key (13a) can be mounted. On the other hand, the stopper 13 is formed with a keyhole 14 and a protruding jaw 13a. One side of the shaft 10 has a hole 16 is formed.

The transfer part C includes a motor 30, a reducer 27 driven by the motor, a tundish support 28 supporting the reducer 27 at the upper and lower ends, and a reducer shaft extending from one side of the reducer ( 23 and 24, and a cylinder 25 mounted between the reduction gear shafts 23 and 24. On the other hand, the fixed receiving groove (26a) is formed at the end of the cylinder is configured so that the key (26b) can be mounted, the coupling (23a, 24a) is fixed to the end of the reducer shaft (23, 24). Also equipped with a hydraulic valve 33 for supplying hydraulic pressure to the cylinder, PLC (programmable logic controller 31) to control the hydraulic cylinder and the motor, and 34 is an operation panel, and 40 denotes a switch and 32 denotes a drive, and the detailed description thereof will be omitted since these are general technical contents. In addition, the support 35 is provided on the tundish side wall.

Hereinafter, the operation and function of the present invention will be described.

FIG. 8 is a view showing a nozzle removing device and a power transmission device for cleaning, and FIG. 9 is a view showing a cleaning device and a nozzle replacement device of the present invention.

The hot tundish 100a completely removes the remaining molten steel and slag in the tundish 100a in the hot state after completion of the casting operation, and then advances the cylinder 25 to replace the upper nozzle 100b. ) And the support 35 are in close contact with each other to support the upper nozzle 100b. Then, when the operator selects the switch 40 on the operation panel 34, a signal is transmitted to the PLC 31, and the PLC 31 is supplied with power to the solenoid valve 33 to be coupled with the cylinder 25. The shaft 10 is advanced and stopped in front of the tundish 100a and the upper nozzle 100b. Thereafter, the stopper 13 is erected into the upper nozzle 100b while being caught by the catching jaw 13a of the stopper 13 at the catching portion 19 formed at the end of the housing 17. Thereafter, when the cylinder 25 is retracted, the upper nozzle 100b comes out together with the stopper 13.

On the other hand, after completion of the removal of the tundish upper nozzle 100b, in order to replace the new upper nozzle 100b and perform continuous casting, the upper nozzle 100b must be removed only after removing the adsorbent material 100f from the well block 100e. Easy to replace First, in order to remove the current and the adsorption material 100f of the well plate 100e of the tundish 100b, the cleaning part and the replacement part are advanced, so that the fixed receiving groove 28 and the support stand 35 come into close contact with each other. ) Will play a role in supporting each other. In addition, when an operator selects the cleaning device switch 40 on the operation panel 34, a signal is transmitted to the PLC 31, and the PLC 31 is supplied with power to the motor 30 via the drive 32. When the reducer 27 and the cleaning part upper and lower cuffs 8 and 9 are connected, the replacement part A mounted on the front and rear bearings 6 and 7 is fixed, and the upper and lower cleaning means 3 are fixed. (4) The slab quality is improved by completely removing the residual current and the adsorbent material 100f in the tundish 100a and the well block 100e as the body rotates, thereby preventing the flow into the tundish.

According to the present invention, it is possible to easily replace the upper tundish nozzle in the hot state after the completion of the casting operation, and to improve the slab quality by blocking the inflow into the tundish by removing the current and the adsorption material of the well block with the cleaning device. Excellent effect.

Claims (2)

A cleaning part including an upper body, a lower body facing the upper body up and down, cleaning means fixed to the outside of the upper body and the lower body, and bearings fixed to the inner wall surfaces of the upper body and the lower body; A replacement part comprising a housing mounted between the upper body and the lower body and having an engaging portion at an end thereof, a shaft mounted inside the housing, and a stopper mounted so as to be pivotable at an end of the shaft and being caught by the engaging portion; Wow, Between a motor for driving the upper body and the lower body, a reducer driven by the motor, a tundish support for supporting the reducer in upper and lower ends, a reducer shaft extending from one side of the reducer, and the reducer shaft. Playing hot twirl dish nozzle cleaning and replacement device characterized in that it comprises a transfer portion consisting of a cylinder mounted to. The method of claim 1, The stopper has a keyhole and protruding jaw is formed in the stopper playing hot twirl nozzle cleaning and replacement device.