KR20000012620U - Tapping bar fixing device for opening the exit of the furnace - Google Patents

Abstract

The present invention relates to a tapping bar fixing device for opening the exit port of the furnace, in particular a tapping bar for opening the exit port of the furnace, a key function of the opening machine, which is a device for drawing out the molten iron manufactured in the furnace. It relates to a fixing device.

The present invention has a fixed chuck that can be fixed to the tapping bar mounted inside the tapping bar, the fixed chuck is mounted on the outside of the fixed chuck, the sleeve for pressing the cutout of the end of the fixed chuck from the outside, and the transfer screw of the fixed chuck A male screw for contacting the fixed chuck horizontally, a tapping socket mounted on the outside of the sleeve to rotate together with the male screw, and moving the fixed chuck forward and backward, and a needle roller bearing in which the tapping socket is mounted inside; And, the tapping socket is coupled to the end comprises a screw rod is rotated as the screw rod is rotated, the fixed chuck is moved forward and backward characterized in that the cut portion of the end of the fixed chuck is configured to contract and relax .

According to the present invention, the tapping bar of the opening machine for opening the exit port can be easily detached and used regardless of the outer diameter of the tapping bar. It also has the effect of preventing the tapping bar from being worn during use.

Description

Tapping bar fixing device for opening the exit of the furnace

The present invention relates to a tapping bar fixing device for opening the exit port of the furnace, in particular a tapping bar for opening the exit port of the furnace, a key function of the opening machine, which is a device for drawing out the molten iron manufactured in the furnace. It relates to a fixing device.

In general, the furnace is continuously charged with ore and fuel to continuously produce molten water, and thus the discharge of molten material (furnace) generated in the furnace is required continuously. Four outlets in the circumferential direction at the bottom of the blast furnace are used to discharge the melt. And the melt discharged by the opening machine is sent to the steelmaking process which is a post process.

1 is a view showing a state in which the general opening port opening machine is installed on the side of the opening port, Figure 2 (a) is a view showing a conventional screw rod and tapping socket, which is one of the opening parts for the melt discharge An SM45C cast product that is a material of the tapping socket 70 is assembled by a tapping socket 70, a coater 70-1, a spring 70-2, and a clamp ring 70-3. The impact caused by the operation of the opening machine during the opening of the exit opening causes a breakage phenomenon as shown in the portion B of FIG. 2 (a), and the screw rod is mounted on the tapping socket 70 during maintenance or operation of the opening body (50.60.40). There are frequent work situations that need to be left out. This is because a 36ψ tapping socket is replaced with a 46ψ gold rod (iron bar) (not shown) tapping socket when unstrained by blood vessels in the outlet, and when the outlet is blocked by core coke. As shown in 70-A of the circular spiral screw is coupled and compressed, the tinping socket 70 and the screw rod 120 is not possible to take out even using a blowout mechanism. Up to now, the open-air stop hammer 50 and the reverse hammer 60 were blown out or cut out by an oxygen cutting machine.

In addition, the tapping bar groove 20-1 and the coater 70-1 of the tapping socket 70 are crushed when the tapping bar 20 is operated in the exit port 10 by reversal when the tapping bar 20 is operated in the starting port 10. Phenomenon occurs. Due to this, while being separated by the opening machine hammer ring 50 is impossible to be separated, it is damaged because it gives a strong impact on the expensive tapping socket 70 and the screw rod 120. The maintenance time is also long, there is a problem that the production amount decreases due to delay in departure. Screw rod 120 life is shortened and the work load is increased, the rust relief, it is the cause of the inhibition of stable operation.

The present invention is to solve the above-mentioned problems, by integrating the screw rod and the tapping socket of the opener which is one of the melt discharge equipment of the blast furnace to prevent the screw rod and the tapping socket from being broken, fastening and detaching the tapping bar It is an object of the present invention to provide a tapping bar fixing device for opening the exit port of the smelting furnace which can prevent the work trouble due to the opening delay by enabling the tapping socket rotation force only.

The above-mentioned object is a tapping socket for detaching a tapping bar of a blower for opening an outlet of a blast furnace, wherein the tapping bar is mounted inside to fix the tapping bar, and is mounted on the outside of the fixing chuck and slides. And a sleeve for pressing the cutout portion of the fixed chuck end from the outside, a male screw contacting the feed screw of the fixed chuck so that the fixed chuck moves horizontally, and mounted on an outer side of the sleeve to rotate together with the male screw. And a tapping socket to move the chuck forward and backward, a needle roller bearing to which the tapping socket is mounted, and a screw rod to which the tapping socket is coupled to the end and rotated. The chuck is moved forward and backward so that the incision at the end of the fixed chuck can contract and relax. It is achieved by a tapping bar fixing device for opening the exit port of the furnace, characterized in that configured.

BRIEF DESCRIPTION OF THE DRAWINGS The figure which shows the state which installed the general tap opening machine on the side of a tap opening.

2 (a) shows a conventional screw rod and tapping socket.

Figure 2 (b) is a conventional tapping socket assembly.

Figure 3 (a) and (b) is a view showing an integrated screw rod and tapping socket coupling state according to the present invention.

4 (a) is a cross-sectional view of the portion A of FIG. 3 (b).

Figure 4 (b) is a perspective view of a fixed chuck.

Figure 4 (c) is a right side view of Figure 4 (a).

Explanation of symbols for main parts of the drawings

70-1: tapping socket 120-1: screw rod

240: tapping bar 210: needle roller bearing

220: bearing block 300: sleeve

310: fixed chuck 320: feed screw

330: injection tube 340: male thread

400: spinous process

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

Figure 3 (a) and (b) is a view showing an integrated screw rod and tapping socket coupling state according to the present invention, Figure 4 (a) is a cross-sectional view of the portion A of Figure 3 (b), Figure 4 (b ) Is a perspective view of the fixing chuck, and FIG. 4C is a right side view of FIG. 4A.

The present invention is a fixed chuck 310, the sleeve 300, the male thread 340, the tapping socket 70-1, the needle roller bearing 210, the screw rod 120-1 which can fix the tapping bar 20 ) Hereinafter, each member is explained in full detail.

The present invention is coupled to the bearing block 220 so that the screw rod (120-1) and the tapping socket (70-1) is forward and backward and rotatable on one axis of the needle roller bearing 210 at the end of the mounting bed (90) do. Shorten the existing tapping socket 70 and screw rod 1014mm (120) fastening from a screw type to a straight screw rod 894mm (120-1), and tapping socket (70-1) and screw rod (120-1) The fixed hexagonal bolt 250 is coupled and fixed, and the screw rod 120-1 fastens the iron rod (not shown 46φ) and the single opening tapping bar 240 32φ by the fixing chuck 310. On the other hand, one side end of the fixed chuck 310 is formed with a radial incision 310a, the other end is formed with a feed screw 320. Inside the cutout 310a, the chucks 400 are formed, respectively. Chuck protrusion 400 is to press the tapping bar 240 from the outside. In addition, when the tapping socket 70-1 is rotated forward on the rear end screw 320 of the fixing chuck 310, the intermediate sleeve 300 outside the fixing chuck 310 is advanced to configure the tapping bar 240 and 32φ to be fixed. .

The mounting bed 90 is firmly fixed on the roller 100 to the guide cell 30, and the mounting bed 90-1 is installed long by welding 130 the end of the existing mounting bed 90, and the roller ( 100-1) is additionally installed, and the bearing block 220 is fixed by the bolt 200 to fix the needle roller bearing 210 at the bottom thereof.

On the other hand, inside the bearing block 220, the screw rod 120-1 and the tapping socket 70-1 are coupled so as to be able to move forward and backward about the needle roller bearing 210, and the screw rod 120- It is connected to the inner hex bolt 250 to transfer the rotation of 1) to the tapping socket (70-1).

Therefore, when the inner male thread 349 of the tapping socket 70-1 rotates, the intermediate sleeve 300 is connected by the fixing chuck 310 and the screw 320 so as to be advanced. And the length of the screw rod (120-1) is installed in a straight line of the existing 1014mm to 894mm, and the fixed chuck 310 and the spinneret to rotate the rotational force of the screw rod (120-1) and the tapping socket (70-1) Strongly delivered to 400 is configured to secure the tapping bar 240.

In addition, the groove 20-1 of the tapping bar 240 is removed and closely coupled with the injection tube 330 on the inner circumferential surface of the fixed chuck 230 to improve the injection (number of high pressure and N 2) function.

According to the present invention, the tapping bar 240 centers the tapping bar 240 at the center of the tapping sphere 80 by remote operation, and the tap opening bar operator first prepares the forward drive motor 40 button to advance the mounting bed 90 with a remote controller. Press to actuate the start of the screw rod 120-1 rotation with the pressing force. At this time, when the fixing chuck 310 located inside the tapping socket 70-1 is wound around the male screw 340 inside the tapping socket 70-1, the sleeve 300 moves forward and the fixed chuck 310 is rotated. Tapping bar 240 is firmly fastened by the chuck projection (400) by pressing. Thereafter, the tapping bar 240 penetrates the tap hole to perform taping work.

On the other hand, to prevent breakage of the opening screw rod 120-1 and the tapping socket (70-1) and crushing the tapping socket coater (70-1) and the tapping bar in use in the existing (20-1) By ease of separation of the tapping bar 240. Without changing the tapping socket (70-1), it is possible to use the iron rod (not shown) 46φ and the tapping bar 240, 32φ at the same time, and the needle roller bearing 210 and the bearing block 220 are extended by welding The bolt 200 is attached to the mounting bed 90-1. This minimizes the damage caused by the impact and reduces maintenance costs. The chuck protrusion 400 is attached to the fixed chuck 310 and the groove 20-1 of the tapping bar is removed to firmly fix the tapping bar 240.

According to the present invention, the tapping bar of the opening machine for opening the exit port can be easily detached and used regardless of the outer diameter of the tapping bar. It also has the effect of preventing the tapping bar from being worn during use.

Claims (2)

In the tapping socket for detaching the tapping bar of the blow opening for opening the exit of the furnace, A fixed chuck to which the tapping bar is mounted to fix the tapping bar; A sleeve mounted on an outer side of the fixed chuck and sliding to press the cutout portion of the fixed chuck end from the outside; A male screw contacting the feed screw of the fixed chuck to move the fixed chuck horizontally; A tapping socket mounted on an outer side of the sleeve and rotating together with the male screw to advance the fixed chuck forward and backward; A needle roller bearing having the tapping socket mounted therein; The tapping socket is coupled to the end comprises a screw rod is rotated as the screw rod is rotated, the fixed chuck is moved forward and backward so that the incision portion of the fixed chuck end is configured to contract and relax Tapping bar fixing device for opening the exit of the car. The method of claim 1, The fixed chuck is a tapping bar for opening the exit port of the furnace, characterized in that the radial incision is formed at one end, the other end is a pipe with a feed screw formed, the chuck projection is formed inside the cutout. Fixture.