KR200218612Y1 - Device for preventing adherence of material on deck of electric furnace - Google Patents

Abstract

The purpose of the present invention is to prevent the accumulation of charges on the deck by reducing the time and effort required to remove the fixed charges, and to charge the upper deck to the flat deck The present invention provides a device for preventing water sticking.

Therefore, the present invention is installed on the electric deck and tilted downward to the outside of the electric furnace inclined member for preventing the accumulation of the charge on the deck, and the vibration to remove the contents fixed to the inclined member by vibrating the inclined member up and down Provided is a charge preventing device of the upper deck of the electric furnace comprising a portion.

Description

Device for preventing adherence of material on deck of electric furnace

The present invention relates to an electric furnace, and more particularly, to an apparatus for preventing the seizure of the charge of the upper deck of the electric furnace that can prevent the charges falling from the basket is fixed to the deck of the upper of the furnace.

In general, an electric furnace refers to a furnace for heating and dissolving a metal or alloy using electricity. When a high voltage is applied to three electrodes vertically connected to an upper part of a ceiling of an electric furnace, high heat arc heat is generated to dissolve scrap metal in the electric furnace. do.

Scrap or secondary materials, such as chromium and nickel, are charged from the upper part of the electric furnace 100 using the basket 150 in the state of opening the large ceiling 120 as shown in FIG. Some of the charges 200 falling from the basket 150 is stacked on the upper deck of the electric furnace.

That is, as shown in FIG. 4, since the upper deck 110 of the conventional electric furnace 100 forms a horizontal plane, the charge is placed thereon, and the charge is closed when the large ceiling 120 is closed in this state. Due to the large ceiling 120 is not accurately placed on the deck 110, a problem that is inclined to one side occurs.

In addition, as the heat and molten metal in the furnace is scattered during the main melting operation, it is fused and solidified together with the charges accumulated on the deck, and the fixation state of the charges becomes worse.

As the ceiling is irregularly settled by the fixing charges, a gap is generated between the roof and the deck, and outside air flows through this gap, which is a major cause of heat loss in the furnace, and many obstacles to deterioration of dust collection efficiency and environmental management. do.

Therefore, in the prior art, a worker frequently climbs a deck and uses a jig, such as a shovel, to remove the fixed charges accumulated on the deck. This work is exposed to a high temperature working environment, which may cause a safety accident. Excessive work time is the cause of productivity degradation.

In this regard, the present invention was devised to solve the above-mentioned problems, and by reducing the time and effort required to remove the fixed charges by fundamentally preventing the accumulation of charges on the deck of the electric furnace, flattening the ceiling on the deck It is an object of the present invention to provide an apparatus for preventing the seizure of the charge of the upper deck that can be easily seated.

1 is a schematic diagram showing a state where a raw material is charged into an electric furnace;

Figure 2 is a schematic cross-sectional view showing a charge preventing device according to the present invention,

3 is a partial detailed view of FIG. 2 according to the present invention;

4 is a schematic diagram illustrating a deck according to the prior art.

Explanation of symbols on the main parts of the drawings

10: inclined member 20: seating deck

30 housing 31 operating bar

32: elastic spring 33,34: protrusion bar

35: camshaft 36: cam

37: driving cylinder

In order to achieve the object as described above, the present invention is installed on an electric furnace deck and inclined downward toward the outside of the electric furnace, the inclined member for preventing the accumulation of the charge on the deck, and the inclined member vibrating up and down to the inclined member It includes a vibrating portion for removing the charge to be stuck.

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

1 is a schematic view showing a state of loading the raw material into the electric furnace, Figure 2 is a schematic cross-sectional view showing a charge preventing device according to the present invention, Figure 3 is a partial detail of Figure 2 according to the present invention It is also.

According to the above drawings, the electric furnace 100 is provided with a deck (110) at the top to be placed a large ceiling (120) for opening and closing the top of the electric furnace (100).

Here, the present invention is placed on the deck 110, the basket 200, the charge 200 falling to the top of the deck 110 when the charge 200 into the furnace 100 through the electric furnace 100 outside And a vibrating portion for dropping the charged material 200 stuck to the inclined member 10 by vibrating the inclined member 10 and the inclined member 10 up and down.

The inclined member 10 is formed in an annular shape along the deck 110 and has an upper surface inclined downward to the outside of the electric furnace 100.

Therefore, the charge 200 is to flow down along the upper inclined surface of the inclined member 10.

Here, the inclined member 10 is installed on the deck 110, so it must be performed at the same time to safely seat the large ceiling (120) placed on the deck 110, for this purpose, deck of the lower ceiling (120) ( 110, a mounting deck 20 having the same inclination angle as the inclined member 10 is installed on the seating portion.

The seating deck 20 is inclined upwardly so as to be in close contact with the upper inclined surface of the inclined member 10. Therefore, when the large ceiling 120 is closed, the seating deck 20 installed in the large ceiling 120 may be safely placed on the inclined member 10 of the upper deck 110 of the electric furnace 100.

On the other hand, the vibrating part is installed in the housing 30 is installed below the deck 110, the electric furnace 100, the inclined member 10, the operation bar 31 is installed through the bottom of the housing 30, the operation An elastic spring (32) installed between the inclined member (10) and the housing (30) through a hole formed in the upper part of the deck (110), the upper part of the operating bar (31) and the electric furnace (100). Up and down protrusion bar 34 protruding toward the side, and the cam 36 is rotatably installed on the side of the electric furnace 100 and located between the upper and lower protrusion bars 33 and 34 on the outer circumferential surface thereof. The cam shaft 35 is formed perpendicular to the side of the electric furnace 100 and the piston rod tip is eccentrically connected to the cam shaft 35 and includes a drive cylinder 37 for rotating the cam shaft 35.

Therefore, when the driving cylinder 37 is operated, the cam shaft 35 is rotated, and the inclined member 10 is pulled down by the cam 36, and the elastic force of the elastic spring 32 due to the movement of the inclined member 10 is reduced. As a result, the inclined member 10 vibrates up and down.

The housing 30 is installed at regular intervals along the bottom of the deck 110.

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

When the large ceiling 120 is lifted and pivoted to load scrap metal into the electric furnace 100, the inclined member 10 is lifted by the elastic force of the spring 32 with respect to the deck 110. .

In this state, the basket 150 is positioned above the furnace 100 to drop the charge 200 into the furnace 100.

Some of the falling charges 200 fall to the deck 110, such that the charges 200 dropped toward the deck 110 is inclined to the inclined member (10) while touching the inclined member 10 located on the deck (110) 10 and slide along the inclined surface of the electric furnace 100 outside. It will be able to prevent the charge 200 is stacked on the deck 110.

On the other hand, at the same time as the opening of the large ceiling 120, the driving cylinder 37 of the vibrating unit is stretched to continuously vibrate the inclined member 10. When the driving cylinder 37 is operated, the piston rod end of the driving cylinder 37 The cam shaft 35 formed on the cam shaft 35 alternately presses down the protruding bar 34 provided on the operation bar 31 so that the cam shaft 35 connected to the cam shaft 35 rotates continuously in the left and right directions. do. Therefore, the inclined member 10 is pushed down and vibrated while being lifted upward by the elastic return force of the elastic spring 32.

In other words, when the driving cylinder 37 is extended in FIG. 3, the cam shaft 35 is rotated downward, and the cam 36 formed on the cam shaft 35 has the lower protrusion bar 34 installed at the operating bar 31. Will be pressed.

As the lower protrusion bar 34 is pressed, the operation bar 31 is pulled down, and the inclined member 10 provided with the operation bar 31 descends while compressing the elastic spring 32.

When the driving cylinder 37 is contracted again, the cam shaft 35 is rotated in the opposite direction as described above, so that the cam 36 is lifted up, so that the inclined member 10 moves upward by the return force of the elastic spring 32. As the lifting process is repeated, the inclined member 10 vibrates up and down by the elastic force of the spring 32.

As the inclined member 10 vibrates continuously during the operation, the contents 200 attached to the inclined member 10 can be effectively removed.

According to the device for preventing the fixation of the charge of the upper deck of the electric furnace according to the present invention as described above, by blocking the original accumulation of the charges accumulated on the deck of the electric furnace, cold air flows into the space between the large ceiling and the deck when the large ceiling is settled It is effective in reducing the heat loss by preventing it.

In addition, there is an advantage to increase the productivity by reducing the time and effort required to remove the contents stuck to the deck.

In addition, it is possible to prevent the installation trouble by improving the seating state of the ceiling.

Claims (3)

An inclination member installed on the electric furnace deck and inclined downward toward the outside of the electric furnace to prevent the accumulation of charges on the deck; Vibration unit for removing the charges fixed to the inclined member by vibrating the inclined member up and down; Filling prevention device of the upper deck electric furnace comprising a. The inclined member and the housing of claim 1, wherein the vibrator is installed in a lower portion of the deck and an operating bar installed under the inclined member and penetrates the bottom of the housing. Elastic springs installed between the upper and lower operation bars, which protrude toward the side of the furnace at the upper and lower portions of the operation bar, and cams that are rotatably installed on the side of the furnace and positioned between the upper and lower protrusion bars on the outer circumferential surface thereof. The cam shaft is formed perpendicular to the side of the electric furnace, the piston rod end is connected to the cam shaft eccentrically comprises a drive cylinder for rotating the cam shaft, characterized in that the charge of the upper deck of the electric furnace. According to claim 1 or claim 2, Deck mounting portion having the same inclination angle as the inclined member is installed on the deck seating portion of the bottom of the ceiling of the electric furnace is charged in the upper deck of the electric furnace characterized in that seated on the inclined member. Sticking prevention device.