KR100460660B1 - An apparatus for transferring splash cover - Google Patents

Abstract

The present invention relates to a transfer apparatus of a splash cover, and to a splash cover transfer apparatus which travels on a rail and can easily move the splash cover when the splash cover is replaced, mounted or removed.

The present invention includes a body portion including a wheel and a body coupled to a wheel shaft to travel on a rail fixed to and installed on the ground adjacent to the main road; A drive unit fixed to an upper portion of the body and including a drive motor for transmitting power to the wheel shaft by a chain and a limit switch fixed to both sides of the body to prevent excessive operation of the drive motor; And a lifting unit including a hydraulic cylinder fixed to a support member fixed to an upper portion of the body and operating vertically, a support member fixed to a rod of the hydraulic cylinder, and a hydraulic pump for supplying hydraulic pressure to the hydraulic cylinder. Provided is a splash cover transfer device.

Therefore, according to the present invention, it is possible to improve the work efficiency and to prevent safety accidents by quickly and safely transferring the splash cover when replacing or mounting or detaching the splash cover.

Description

Splash Cover Transfer Device {AN APPARATUS FOR TRANSFERRING SPLASH COVER}

The present invention relates to a transfer apparatus of a splash cover used to prevent the melt from scattering during the starting operation in which the melt is discharged from the blast furnace to the large hot water. More particularly, the splash cover is moved on a rail and the splash cover is replaced. The present invention relates to a splash cover transfer apparatus capable of easily moving the splash cover when it is mounted or removed.

As shown in Figure 1, the blast furnace operation in the steel mill is charged with a charge, such as lead, raw materials into the blast furnace 100, supplying hot hot air into the blast furnace 100 to reduce melting in the blast furnace 100 By causing the reaction to continue to produce a melt, the melt is discharged to the large hot water 102 through the outlet 100a of the blast furnace to supply to the post-process.

At this time, when all the melt in the blast furnace is discharged to the large hot water, the outlet 100a is closed by a mud gun (not shown) installed to be rotatable in front of the outlet 100a and charged into the blast furnace 100. As the water is reloaded, the blast furnace operation is repeated.

On the other hand, at the end of the departure, a large amount of melt is ejected with hot air from the outlet 100a of the blast furnace 100 and scatters, thereby protecting the surrounding equipment and workers, and blocking the radiant heat of the melt flowing along the large bathway 102. In order to protect the worker and the peripheral equipment by mounting a cover with refractory is attached to the top of the tap water (102) in front of the outlet 100a, which is the splash cover (110).

The splash cover 110 has to be detached from the large hot water to close the outlet 102a of the blast furnace 100 after all the melt in the blast furnace 100 is discharged to the large hot water 102. The same splash or detachment of the splash cover 110 is made by a maniplator 120 installed to be transportable in front of the outlet 100a.

That is, the splash cover 104 is composed of a steel shell 112, the refractory is attached to the inside, a fixed ring (112a) is formed on the upper shell 112 and the manipulator 120 is a hook portion ( 122, the hook cover 122 of the manifold 120 is caught by the hook 112a of the splash cover 110, and then the manifold 120 is transferred to the splash cover ( It is possible to mount and detach on the large hot water 102 of the 110.

However, the splash cover 110 configured as described above is mounted on or detached from the large waterway 102 by the manifold 120, but the weight thereof is considerable, so that the transfer of the splash cover 110 is not easy for exchange or replacement. .

However, in order for the splash cover 110 to be mounted on the large waterway 102 by the manifold 120, the splash cover 110 must be transferred to the lower portion of the manifold 120 adjacent to the large waterway 102. However, the vicinity of the large waterway 102 is difficult to use the heavy equipment for the transfer of the splash cover 110 because the place is narrow, the transfer was made for the mounting of the splash cover 110 by a manual operation by the operator .

That is, as shown in FIG. 2, a primitive method, such as connecting the splash cover 110 to a wire rope connected to a small forklift and transporting by workers, has been used. When the time is excessively excessive and the splash cover 110 is pulled by the forklift, there is a fear of a safety accident due to breakage of the wire rope.

On the other hand, as shown in Figure 3, the melt of the high temperature (1530 ℃) discharged to the large hot waterway 102 through the outlet 100a by the refractory attached to the inside of the splash cover 110 ( Corrodes 112 are red and deformed or broken by causing erosion, wear, and breakage of 114.

That is, the refractory 114 of the splash cover 110 due to the repetitive blast furnace operation is worn by contact with the melt, or oxidized by high heat, so that the refractory 114 is removed from the shell 112, the shell 112 is damaged by red light.

Deformation and breakage of the steel shell 112 generated as described above may cause deformation and damage of the ring 112a fixed to the steel shell 112, thereby preventing the splash cover 110 of the splash cover 110 by the manifold 110. Since the mounting and detachment are impossible, the worker may mount or detach the splash cover 110 using a crane (not shown) provided on the ceiling.

Therefore, there is a high risk of safety accidents due to high heat when the splash cover 110 is attached and detached, and excessive time is required, resulting in a decrease in work efficiency, and a cost for maintenance of the splash cover 110 is increased. Continually needed.

The present invention is to solve the conventional problems as described above, the purpose is to improve the splash cover to extend its life, to provide a device that can quickly and safely transport the splash cover to eliminate the factors of safety accidents It is to provide a splash cover transfer device that can increase the work efficiency.

1 is an overall perspective view showing a conventional starting operation;

Figure 2 is a perspective view showing a transfer method of a conventional splash cover

Figure 3 is a state diagram showing a problem occurring in the splash cover during the conventional departure up;

Figure 4 is an overall perspective view of the splash cover transfer apparatus according to the present invention;

5 illustrates a splash cover including a temperature sensing unit and a cooling unit according to the present invention.

(a) is the overall configuration,

(b) is a perspective view of the installation of the temperature sensing cable and the cooling tube;

Figure 6 shows a splash cover transfer apparatus according to the present invention,

(a) is a working state diagram,

(b) is a front view of (a).

Explanation of symbols on the main parts of the drawings

10 ..... body 12 ... rail

14 ..... wheel axle 16 ..... wheel

18 ..... Body 30 ..... Drive

32 ..... Drive motor 34 ..... Chain

36 ..... limit switch 38 ..... reducer

40 ..... driven sprocket 42 ..... driven sprocket

50 ..... Lift 52 ..... Support member

54 ..... Hydraulic cylinder 56 ..... Support member

58 ..... hydraulic pump 64 ..... safety lever

70 ..... temperature sensing unit 72 ..... fireproof member

74 ..... Temperature sensing cable 76 ..... Radiation pyrometer

78 ..... Temperature detection panel 90 ..... Cooling unit

92 ..... Cooling nozzle 96 ..... Cooling line

In order to achieve the above object, the present invention, in the device for moving the splash cover mounted on the upper side of the large tapping water during work, coupled to the wheel shaft to travel on the rail fixed to the ground adjacent to the large tapping road A body part including a wheel and a body; A drive unit fixed to an upper portion of the body and including a drive motor for transmitting power to the wheel shaft by a chain and a limit switch fixed to both sides of the body to prevent excessive operation of the drive motor; And a lifting unit including a hydraulic cylinder fixed to a support member fixed to an upper portion of the body and operating vertically, a support member fixed to a rod of the hydraulic cylinder, and a hydraulic pump for supplying hydraulic pressure to the hydraulic cylinder. By providing a splash cover transfer apparatus for transferring the splash cover.

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

Figure 4 is a perspective view of the splash cover transfer apparatus according to the present invention, Figure 5 shows a splash cover including a temperature sensing unit and a cooling unit according to the present invention, (a) is an overall configuration, (b) 6 is a perspective view of the installation of the temperature sensing cable and the cooling tube, Figure 6 shows a splash cover transfer apparatus according to the present invention, (a) is a working state diagram, (b) is a front view of (a).

4 and 6 show a splash cover conveying apparatus 1 according to the present invention, the components of which are described in detail as follows.

The splash cover transfer apparatus 1 according to the present invention includes a body portion 10, a driving portion 30, and a lifting portion 50. First, the body portion 10 will be described below.

As shown in FIG. 4, the body portion 10 includes a body 18, a wheel 16, and a wheel shaft 14. The body 18 has a flat plate shape and a lower surface of the forklift. The conveying groove 18a is provided so that conveyance may be easy.

Two wheel shafts 14 are fixed to the lower surface of the body 18 so as to be rotatable, and wheels 16 are fixed to both ends of the wheel shaft 14, respectively. It is configured to travel on a rail 12 fixed and installed on the rail 12.

In addition, the drive unit 30 includes a drive motor 32, a chain 34, and a limit switch 36, wherein the drive motor 32 is fixed to an upper surface of the body 18 and the drive The motor 32 is connected to the reducer 38 through the motor shaft of the drive motor 32, the drive sprocket 40 is fixed to the shaft of the reducer 38.

In addition, a driven sprocket 42 is inserted and fixed on one of the two wheel shafts 14 fixed to the lower portion of the body 18 so as to be rotatable. It is connected to a drive sprocket 40 fixed to the shaft of the reducer 38 by a chain 34.

Therefore, the power generated in the drive motor 32 is transmitted to the wheel shaft 14 by the chain 34, so that the wheel 16 is rotated, so that the body 18 is the rail 12 It will be able to travel on).

In this case, a chain hole 18b penetrating the body 18 is formed in the body 18, and the chain 34 is disposed above the body 18 through the chain hole 18b. It is configured to connect the drive sprocket 40 and the driven sprocket 42 disposed below the body 18.

On the other hand, the limit switch 36 is fixed to both sides of the body 18, the limit switch 36 prevents the splash cover transfer device 1 is excessively running on the rail (12).

That is, when the limit switch 36 is in contact with the contact member 44 fixed to both ends on the rail 12, the control panel 130 disposed above the body 18 may operate the driving motor 32. Stopping prevents excessive operation of the drive motor 32 so that the splash cover conveying apparatus 1 does not leave the rail 12.

Next, the lifting unit 50 will be described.

As shown in FIG. 4, two supporting members 52 are fixed to the upper portion of the body 18, and one side of each of the supporting members 52 is fixed to each of the hydraulic cylinders 54 so as to operate vertically. In total, four hydraulic cylinders 54 are disposed on the upper surface of the body 18.

One support member 56 is fixed to the rods 54a of the two hydraulic cylinders 54 fixed to both sides of the support member 52. A fixing hole is formed at the bottom of the support member 56. Protruding portion 56a is formed and is coupled to the hole formed in the rod 54a of the hydraulic cylinder 54 by the cylindrical pin 55 and the cylindrical pin 55 is fixed by the snap ring (not shown). do.

On the other hand, the hydraulic tank 59 is fixed to the upper surface of the body 18, the hydraulic tank 59 is connected to the hydraulic pump 58 fixed to the upper surface of the body 18, the hydraulic pump 59 is connected by the four hydraulic cylinders 54 and the hydraulic piping 53.

In addition, a bearing block 68 into which a bearing is inserted is fixed to the plate 62 fixed to the support member 52 and fixed to the upper surface of the body 18, and rotatable to the bearing block 68. A safety lever 64 is inserted into the support lever, and two support blocks 66 are fixed to the safety lever 64 so as to rotate together with the safety lever 64.

As shown in FIG. 4, a stopper 69 is fixed to one side of the plate 62 so that the support block 66 rotating together with the safety lever 64 rotates in only one direction. An insertion portion 52a is formed at an upper portion of the support block 66 so that the support block 66 fixed to the safety lever 64 is rotated and moved forward to be inserted into the insertion portion 52a to support the support member ( 56) to the bottom of the support.

On the other hand, as shown in Figure 5a, the splash cover 110 is a refractory member 72 is formed of a refractory containing a high SiC inside the shell 112, the ring 112a is formed on the top The fireproof member 72 has a protrusion 72a formed at an inner side thereof, and a temperature sensing cable 74 of the temperature sensing unit 70 and a cooling tube 92 of the cooling unit 90 are inserted therein. have.

The temperature sensing unit 70 includes a temperature sensing cable 74, a radiation pyrometer 76, and a temperature detection panel 78, and the temperature sensing cable 74 is formed at an inner side of the splash cover 110. It is inserted into the fixed fireproof member 72.

In this case, the fire resistance sensing cable 74 is connected to a contact member (not shown) through the iron shell 112 of the splash cover 110, the radiation pyrometer (76) is the contact member (not shown) ) Is coupled to the splash cover 110, and the radiation pyrometer 76 is electrically connected to a temperature detection panel 78 to adjust the temperature of the splash cover 110 detected by the radiation pyrometer 76. Indicates.

That is, when the splash cover 110 is mounted on the large tap water 102, the splash cover 110 is connected to the contact member (not shown) by connecting the radiation pyrometer 76 electrically connected to the temperature detection panel 78. ) Is detected by the temperature detection panel 78.

As shown in FIG. 5B, the cooling unit 90 includes a cooling nozzle 92, a valve 94, and a cooling tube 92, and the cooling nozzle 92 includes the steel shell 112. And a plurality of the cooling nozzles 92 are connected to the cooling pipes 96, and the cooling pipes 96 are connected to the cooling pipes 96 by the hoses 99. And detachably connected.

Steam and nitrogen are supplied to the supply pipe 98 connected by the cooling pipe 96 and the hose 99. The automatic valve 94a and the manual valve 94b are provided on the supply pipe 98, respectively.

That is, as shown in FIG. 5A, nitrogen and steam are supplied to the supply pipe 98 by a coolant supply device (not shown), and steam and nitrogen mixed at a predetermined ratio by the valves 94a and 94b. The splash cover 110 is cooled by being supplied to the cooling nozzle 92 through the cooling tube 96.

At this time, the radiation pyrometer 76 and the contact member (not shown), and and the supply pipe 98 are detachably connected so that it is separated during the transfer of the splash cover 110.

Each component of the splash cover transfer apparatus 1 according to the present invention configured as described above is electrically connected to the control panel 130, the control panel 130 is electrically connected to the operation end 132, the operation end By 132 is operated as follows.

The refractory containing high SiC, which forms the refractory member 72 of the splash cover 104, suppresses the damage of the refractory member 72 from the melt as much as possible. When the melt is scattered while outboard, the refractory member ( The formed protrusion 72a of the 72 protects the temperature sensing cable 74 and the cooling nozzle 92 inserted into the fireproof member 72 due to the melt.

In addition, by supplying nitrogen and steam to the splash cover 110 through the cooling nozzle 92 of the cooling unit 90 installed in the splash cover 110, the refractory member 72 in the splash cover 110 By suppressing the oxidation reaction of the fireproof member 72 due to the radiant heat of the site, the damage of the fireproof member 72 can be suppressed, and the temperature of the splash cover 110 can be managed and confirmed by the temperature sensing unit 70. By doing so, the damage of the splash cover 110 is prevented in advance.

At this time, the degree of damage of the refractory member 72 due to high heat can be predicted by the temperature data of the splash cover 110 detected by the radiation pyrometer 76 connected to the temperature sensing cable 74.

On the other hand, as shown in Figure 6a and Figure 6b, when the splash cover 110 or the starting work is damaged when the fireproof member 72 is removed and transported to the splash cover 110, the body 18 of the The splash cover conveying apparatus 1 is transported to the forklift by using the conveying groove 18a and seated on the rail 12, and then the operating end 132 is operated to convey the lower portion of the manifold 120.

At this time, when the sensing member 44 contacts the limit switch 36 fixed to the body 18, the control panel 130 stops the driving motor 32 and starts the hydraulic pump 58. By operating four hydraulic cylinders (54) to operate the support member 56 is raised, thereby the splash cover 110 detached by the manifold 120 is the splash cover conveying device ( It is seated on the supporting member 56 of 1).

Subsequently, when the manifold 120 is moved and the hook portion 122 is separated from the hook 112a of the splash cover 110, the driving motor 32 is driven to drive the splash cover transfer apparatus 1. Transfer to the ceiling crane (not shown) hoisting position and hoisting the splash cover 110 by hoisting crane completes the transfer of the splash cover 110.

On the other hand, when the support member 56 is raised by the hydraulic cylinder 54, the support lever 66 attached to the safety lever 64 by rotating and advancing the safety lever 64 is the support member 56. Inserted into the insertion portion 52a of the support member 52 to support the lower portion of the support member 52, which prevents the hydraulic cylinder 54 from descending instantaneously by the weight of the splash cover 110, and the overhead crane (not shown) The splash cover 110 is to protect the splash cover conveying device 1 due to the lifting and lowering of the splash cover 110.

Subsequently, the splash cover 110 is repeatedly transported by mounting the other splash cover 110 on the splash cover conveying apparatus 1 for the overhead crane (not shown) and transferring the reverse cover as described above.

When the transfer of the splash cover is completed as described above, the splash cover conveying apparatus 1 is moved to the loading rack (not shown) on the forklift.

According to the present invention as described above, by improving the splash cover 110 to extend its life and to predict the degree of damage to prevent accidents during work, by transporting the splash cover 110 quickly and safely work efficiency It can improve the safety and prevent accidents.

While the invention has been shown and described with respect to particular embodiments, it will be appreciated that the invention can be varied and modified without departing from the spirit or scope of the invention as set forth in the claims below. It will be appreciated that those skilled in the art can easily know.

Claims (4)

In the device for moving the splash cover 110 mounted on the upper portion of the large waterway 102 during the starting operation, A body part including a wheel 16 and a body 18 coupled to the wheel shaft 14 so as to travel on the rail 12 fixed and installed on the ground adjacent to the large waterway 102; The drive motor 32 is fixed to the upper portion of the body 18 to transfer power to the wheel shaft 14 by the chain 34 and fixed to both sides of the body 18 of the drive motor 32 A drive unit 30 including a limit switch 36 for preventing excessive operation; And A hydraulic cylinder 54 fixed to the support member 52 fixed to the upper portion of the body 18 to operate vertically, a support member 56 fixed to the rod 54a of the hydraulic cylinder 54, and the Splash cover conveying apparatus comprising a; lifting section (50) including a hydraulic pump (58) for supplying hydraulic pressure to the hydraulic cylinder (54). The method of claim 1, wherein the lifting unit 50 A plate 62 fixed to the support member 52 and fixed in parallel to the body 18; A safety lever 64 rotatably fixed on the plate 62; And A support block 66 fixed to the safety lever 64 to rotate together with the safety lever 62; and the support block by rotating the safety lever 64 when the hydraulic cylinder 54 is raised. Splash cover transport apparatus characterized in that the support 66) the lower surface of the support member (56). The method of claim 1, wherein the splash cover 110 Refractory member 72 is formed of a refractory is fixed to the inner surface of the iron shell 112 and formed with a projection (72a); A temperature sensing cable 74 inserted into the fireproof member 72; A radiation pyrometer 76 connected with the temperature sensing cable 74; And a temperature detection unit (70) comprising a temperature detection panel (78) electrically connected to the radiation thermometer (76). The method of claim 1, wherein the splash cover 110 Refractory member 72 is formed of a refractory is fixed to the inner surface of the iron shell 112 and formed with a projection (72a); A plurality of cooling nozzles 92 inserted and passed through the fireproof member 72; And a plurality of valves 94a and 94b installed on a cooling pipe 96 connected to the cooling nozzle 92 and a supply pipe 98 connected by a hose 99 to the cooling unit 90. Splash cover conveying apparatus characterized in that the splash cover 110 is cooled by supplying a mixture of nitrogen and steam to the cooling nozzle (92) through a cooling tube (92).