KR100711369B1 - Apparatus for removing scrafing residual substance of slab - Google Patents

Abstract

The present invention relates to an apparatus for removing the melting snow generated on the surface of the cast steel after the SCARFING operation.

In addition, the present invention, the first removal roll for removing the side melting snow 20a by moving in close contact with the side surface (10a) of the cast steel to remove the surface melting snow 20 of the cast steel 10 after the scarfing operation ( 32) and the slab melting snow removal device provided with the 2nd removal roll 52 which moves in close contact with the bottom face 10b of the slab 10, and removes the bottom melting snow 20b.

Accordingly, the present invention relates to an apparatus for removing the melting snow generated on the surface of the cast steel after the scarfing operation, the object of which is formed on the side and bottom of the cast steel after the scarfing work to move without the manual work of the operator It provides an excellent effect that can effectively and quickly remove the melting snow.

Cast, slab snow removal, snow removal roll, scarfing, scarper

Description

Cast iron removing device {APPARATUS FOR REMOVING SCRAFING RESIDUAL SUBSTANCE OF SLAB}             

1 shows a scarfing operation of a typical cast steel,

(a) is a working state diagram

(b) and (c) are schematic views showing the melting snow formed on the side and bottom of the cast steel during the scarfing operation

Figure 2 is a front configuration diagram showing a molten iron snow removing apparatus according to the present invention

Figure 3 is a perspective view showing the present inventors molten metal snow removing apparatus

4 is a view illustrating a first melting snow removing unit of the present invention according to the present invention.

(a) is a front view showing an operational standby state

(b) is a front view showing the operating state

FIG. 5 is a view illustrating a state before operation of the second snow melting removing unit in the present invention according to the present invention.

(a) is a front view

(b) side view                 

FIG. 6 is a view illustrating an operating state of a second snow removing part of the present invention according to the present invention.

(a) is a front view

(b) side view

Figure 7 is a schematic plan view showing the operation of the snow removal roll and the slab detection operation for the present invention in the molten metal snow removing apparatus.

Explanation of symbols on the main parts of the drawings

1 .... Snow removal device for cast steel 10 .... Cast steel

20 .. Melting snow 30,50 .... No. 1,2 Melting snow removal part

32,52 .... 1st and 2nd removal roll 34 .... Balance

36 .... Fixing bracket 40 .... Frame

42,64. Cylinder 44. Link member

54 .... Bearing block 56 .... Support shaft

58 .... drive unit 60 .... joint means

62 .... support blocks

The present invention removes a thin iron pin-like film (hereinafter referred to as 'melting snow') formed on the surface of the cast steel during the cooling water spraying after the SCARFING treatment of the surface of the steel slab produced in the steel mill. It relates to a device for, in more detail relates to a cast slab removal device to be able to automatically remove the side and bottom molten snow in the cast line of the cast without the operator's manual work.

Generally, during casting, grooves are formed on the surface of the slab due to various factors. In order to remove the surface grooves of the slab, the surface of the slab is usually treated while passing through a scarper. Scarfing is done.

Figure 1a schematically illustrates such a scarfing operation of the cast steel, through the upper and side units 112, 114 of the scarper to remove the surface grooves (not shown) of the cast steel 100 to be manufactured and transported The surface of the cast steel is melted by the combustion heat of oxygen injected at a high pressure, and the surface of the cast steel is treated. The high pressure coolant is sprayed through the high pressure water pipes 120a and 120b disposed vertically and horizontally on the surface of the slab, that is, the upper and side surfaces of the cast steel.

Therefore, as shown in FIGS. 1B and 1C, the scarfing operation of the cast steel 100 as described above forms a thin iron pin-like film on the surface of the cast steel at the side and bottom of the cast steel 100 as the melt flows down. The iron pin film after the side and bottom scarfing work is called melting snow 130a, 130b.

By the way, the molten snow 130a, 130b of the side and bottom of the slab 100 formed during the scarfing operation of the slab must be completely removed before the slab 100 is introduced into the rolling process, which is a heating furnace. This is because the melting snow during the rolling of the cast through the cause of product defects that damage the surface of the rolling coil.

However, since the side and bottom melting snow (130a) (130b) of the cast piece 100 so far has no separate device for removing it, because the operator manually removed using a tool such as grinding (grinding), It is difficult not only to remove the sap removal work, but also to completely remove the sap snow, and in particular, while removing the sap snow of the side and the bottom of the cast steel 100, which are transferred between the line equipments, the sharp sap snow is applied to the operator. Worker accidents caused by splashing are a concern.

Therefore, it is more preferable to remove the molten snow of the cast without manual operation by the operator because the smoothing of the molten snow can be smoothly performed and the safety accident of the working bottom can be avoided.

The present invention has been made in order to improve the various conventional problems as described above, the object of the cast steel to allow the smooth snow removal of the molten snow generated on the surface of the cast steel during the scarfing operation of the cast iron extremely smoothly without manual labor It is to provide a snow removal apparatus.

The present invention as a technical configuration for achieving the above object, in the apparatus for removing the surface melting of the slab subjected to the scarfing work, after moving in close contact with the side of the cast steel, the rotational operation to the side of the cast steel A first melting snow removing unit having a first removing roll for removing snow melting,

After moving in close contact with the bottom face of the cast steel, by providing a cast slab removal apparatus configured as a second snow-melting remover having a second removal roll that is rotated to remove the bottom melting of the slab.

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

In FIG. 2 and FIG. 3, the whole structure of the slab melting snow removal apparatus 1 which concerns on this invention is shown as a front view and a perspective view. As such, the slab snow melting removal device 1 of this invention has the slab 10 The melt flown down during the scarfing operation is largely divided into the first and second melting snow removal parts 30 and 50 for removing the side melting snow 20a and the bottom melting snow 20b formed while collecting the side and the bottom. .

By the way, as shown in Fig. 2 and 3, the first snow-melting removing portion 30 is in close contact with the side surface (10a) of the slab 10, and then rotated to operate for the side of the slab (10) A first removal roll 32 for removing the snow removal 20a is provided, and the second snow removal removal portion 50 is brought into close contact with the bottom face 10b of the slab 10, and is then rotated to operate the slab ( The second removal roll 52 which removes the bottom melting snow 20b of 10) has the characteristics, The structure of such 1st 1st and 2nd snow melting removal parts 30 and 50, ie, said agent Looking at the configuration of the first and second removal rolls 32 and 52, respectively, are as follows.

First, the first snow removing portion 30 is shown in detail in FIGS. 2 and 4, and the first removal roll 32 is shown in detail in FIGS. 3 and 5.

That is, the 1st removal roll 32 of the said 1st snow-melting removal part 30 moves to the front of the trolley | bogie 34 provided so that the movement direction P side of the said slab 10 may be moved back and forth in the right direction. It is installed perpendicular to the fixed bracket 36, the fixed bracket 36 is formed in an inverted c shape, the rear end is fixed to the front of the cart 34, the top of the fixed bracket 34, Although not shown by a separate reference in the drawing on the lower side, a bearing for rotatable the first removal roll 32 should be installed.

In addition, a driving motor 38 is vertically installed on an upper portion of the fixing bracket 36, and although not shown in detail in the drawing, an upper portion of the shaft of the first removal roll 32 and a driving shaft of the driving motor 38 are shown. Are installed to mesh with each other via a gear, such a gear connection is installed on an upper portion of the fixed bracket 36 and upwards so that the drive motor 38 is positioned inside the vertically mounted gearbox 38a. It is preferable.

Therefore, the first removal roll 32 is in close contact with the side surface 10a of the slab 10 entering the moving path P during the movement of the bogie 34 in the longitudinal direction thereof, and then the driving motor 38. ), The first side removal roll 32 is preferably a conventional grind roll, but the knurling is formed on the surface or other wear depending on the state of the slab melting It would also be possible to use rolls with attached members.                     

And, looking at the movement of the moving trolley 34, as shown in Figures 2 and 4, the trolley 34 equipped with the first removal roll 32 is to one side of the cast steel moving path (P). It is installed to move along the rail 42 on the frame 40, and the trolley 34 is interposed between the cylinder 43 and the link member 44 which are installed to the rear of the vertical portion 40a of the frame 40. The movable arm 46 is fixed so that the trolley 34 moves back and forth along the rail when the cylinder 43 is operated.

In addition, a control means 80 for additionally controlling the movement of the moving cart 34 according to the contact state of the slab of the first removal roll 32 is installed below the moving cart 34. 80 is a sensor detecting plate 86a installed at the rear end of the moving bar 86 in which the spring 82 is installed on the inner lower portion of the moving trolley 34 and the guide roll 84 is mounted to the outside of the trolley, and the The first and second sensors 88a and 88b connected to a control unit C electrically connected to a unit (not shown) for driving the cylinder 43 and sequentially operated according to the rearward movement of the sensing plate 86a are provided. Equipped.

Next, Fig. 2, Fig. 5 and Fig. 6 shows the second snow removing portion 50 in the apparatus 1 of the present invention, the second snow removing portion 50 is cast slab 10 It is characterized by having a second removal roll 52 for removing the bottom melting snow 20b formed on the bottom surface 10b of the present invention. The second removal roll 52 will be described in detail as follows. .

The second removal roll 52 is mounted on one side end of the support shaft 56 rotatably connected to the bearing block 54 installed to move up and down across the movement path P of the slab 10. One end of the support shaft 56 is connected via a driving unit 58 and a joint means 60 installed on one side of the cast steel moving path P so that the second removal roll 52 moves in a bearing block ( 54) and the drive unit 60 is configured to move up and down and rotate.

5 and 6, the bearing blocks 54a and 54b to which the support shaft 56 on which the second removal roll 52 is mounted are connected are provided at both sides of the cast steel moving path P. As shown in FIG. It is fixed to the lower portion of the rod of the cylinder (64a) (64b) vertically installed in the upper portion of the support blocks (62a, 62b) disposed in the bearing block 54 to move up and down when the cylinder (64) is driven It is installed.

In addition, as shown in FIGS. 5B and 6B, bearing blocks 62a and 62b which are integrally raised at the upper end of the support blocks 62a and 62b when the cylinders 64a and 64b are lifted up. Stoppers 66 are provided to adjust the rising width of the casters, and as shown in FIG. 8, the cast steel 10 moving on the movement path P in front of the first and second removal rolls 32 and 52. ) Is entered into the device (1) and a plurality of sensors (S1) (S2) for operating the removal rolls (32) (52) are respectively configured.

Referring to the operation and effects of the present invention made of the above configuration in detail as follows.

First, as shown in Figures 2 and 7, when the slab 10 enters the apparatus 1 of the present invention as the feed rolls R on the movement path P through the scarfing operation, first, the forward sensing is performed. The sensor S1 detects this and starts moving the first and second geger rolls 32 and 52, which will be described in detail below, from the standby position to the cutting position 20, and the slab 10 is used. The rear side sensor S2 detects this when approaching the removal position and drives the apparatus 1 of the present invention. Although not shown in detail, the sensors S1 and S2 are connected to the main control panel of the apparatus. And control each driving portion connected thereto.

Next, as shown in FIGS. 2 and 3, the cylinder 43 installed on the frame 40 is operated immediately before the cast steel 10 reaches the movable position of the apparatus 1 so that the link member 44 is operated. Through the movement bar 46 is pushed forward.

Accordingly, the moving trolley 34 fixed to the front of the moving bar 46 along the rail 42 mounted forward of the frame 40 moves in a straight line integrally, at the bottom of the trolley 34. As the guide roll 84 installed is in close contact with the side surface 10a of the cast steel 10, the moving bar 86 provided with the guide roll 84 is moved to compress the spring 82 installed at the rear end thereof. As a result, the sensor operating plate 86a installed at the rear end of the moving bar 86 sequentially operates the first sensors 88a and 88b installed in the trolley 34, for example, the first sensor 88a. When operating while passing through the sensing plate 86a reduces the movement width of the cylinder 43 to perform the movement of the moving trolley 34, and when the sensing plate 86a moves while passing through the second sensor 88b, The operation of the cylinder 43 is stopped.

As a result, the advance of the moving trolley 34 for moving the first removal roll 32 is stopped at the moment when the guide roll 84 is in contact with the slab 10 so as to perform the continuous snow removal operation of the slab.                     

Next, in addition to the first melting snow removing section 30 formed on the side surface 10a of the slab 10 as described above, the bottom melting snow 20b formed on the bottom surface 10b of the slab 10 is removed. As follows.

First, as shown in FIGS. 3 and 7, when the slab 10 enters the apparatus 1 side along the feed roll R of the movement path P, the respective sensors S1 and S2 are formed by the respective sensors S1 and S2. 2 Induces the standby and ascending operation of the removal roll 52, which is also controlled through the main control panel connected to the sensors.

On the other hand, as shown in Figs. 3, 5 and 6, the cylinders 62a and 62b positioned on both sides of the slab 10 immediately before the slab 10 enters the apparatus 1 are lifted up. When the pair of bearing blocks 54a and 54b located in the lower surface support blocks 56a and 56b are integrally raised and the support shaft 56 connected thereto is integrally raised to one end of the support shaft 56, The mounted second removal roll 52 is also integrally raised to be in close contact with the bottom surface 10b of the slab 10. The bearing blocks 54 are lifted by the stoppers 66 installed on the support blocks 56. This is limited, and the close state is adjusted so that the said 2nd removal roll 52 may not generate | occur | produce excessive friction on the bottom face 10b of the slab 10, after all.

Next, when the driving unit 58 connected to the support shaft 56 through the joint means 60 is driven, the support shaft 56 and the second removal roll 52 are integrally rotated along the movement path P. The bottom melting snow 20b formed in the bottom face 10b of the moving slab 10 is removed.

On the other hand, Figure 2 and 3 schematically shows the drive unit 58, but inside the drive unit 58, such as a drive motor, a conventional shaft drive parts such as reduction gears and couplings are installed to the joint means (60) And the motors (not shown) and cylinders 64 of the drive unit 58 are connected to the respective sensors S1 and S2 through a control unit (not shown), as described above, and the operation thereof is controlled. do.

In addition, in the present invention, as shown in Figs. 4 and 5, it is shown that removing the snow-melting snow 20a (20b) formed on one side (10a) and the bottom surface (10b) of the slab 10, In fact, it is also possible to lengthen the length of the second removal roll 52 to remove the melting snow of the entire bottom face 10b of the slab 10, and to remove the first removal rolls 32 on both sides of the slab 10, respectively. It will also be possible to remove the snow melting formed on both sides of the cast piece 10 at a time by installing.

In addition, in contrast to the apparatus 1 of the present invention, the first and second removal rolls 32 and 52 are arranged to install a pair of devices 1 on the front and rear sides to separate the removal operation of the snow melting. It would be desirable to enhance the removal effect.

As a result, according to the apparatus for removing snow melting 20 of the slab 10 according to the related art, the snow melting removal apparatus 1 according to the present invention provides a cast steel that enters the device side along the movement path without the manual operation of the worker ( The side and bottom melting snow 20a, 20b formed on the side surface 10a and the bottom surface 10b of 10) is effectively removed while the work time is greatly shortened.

Thus, according to the present invention, the molten metal snow removing apparatus has the advantage of automatically and extremely smoothly removing the molten snow of the molten metal as a molten snow removing roll installed on a moving path of the steel without a worker's manual work.

In addition, the operator does not need to provide the effect of preventing the worker's safety accident in advance.

Finally, the surface state of the coil produced by rolling the cast steel becomes good, providing an excellent effect of improving the quality of the coil product.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (6)

In the device for removing the surface melting snow 20 of the slab 10 subjected to the scarfing operation, First moving snow removal part 30 provided with the 1st removal roll 32 which moves and adheres to the side surface 10a of the said slab 10, and is rotated and removes the side melting snow 20a of the slab 10. ); And, After moving closely to the bottom surface 10b of the slab 10, the second snow removing portion 50 having a second removal roll 52 that rotates to remove the bottom melting snow 20b of the slab 10. Cast iron snow removal apparatus characterized in that configured as The first removal roll 32 of the first snow-melting removal unit 30 is in front of the trolley 34 provided to move back and forth to the moving path P side of the slab 10. It is installed so as to drive the motor 38 perpendicular to the mounting bracket (36) mounted so as to rotate in close contact with the side (10a) of the slab 10 during the movement of the trolley 34 to remove the side ground snow 20a of the slab (10) Cast iron snow removing apparatus characterized in that configured to The trolley 34 to which the said 1st removal roll 32 is mounted is installed so that it may move along the rail 42 on the frame 40 arrange | positioned to the one side of the slab movement path P, The trolley 34 has a cylinder 43 installed behind the vertical portion 40a of the frame 40 and a movable arm 46 connected via the link member 44, so that the trolley 34 has the cylinder. (43) cast iron snow removing apparatus, characterized in that configured to move back and forth along the rail during operation 3. The moving trolley 34 has a spring 82 mounted on the inner lower portion of the moving trolley 34 and a rear end of the moving bar 86 on which the guide roll 84 is mounted to the outside of the trolley 34. First and second sensors 88a, which are connected to a sensor detecting plate 86a installed and a control unit electrically connected to a unit for driving the cylinder 43, are sequentially operated according to the rearward movement of the sensing plate 86a. Slab removal apparatus characterized in that it further comprises a control means (80) having 88b). The second removal roll (52) of the second snow-melting removal part (50) is mounted on a bearing block (54) provided to move upward and downward across the movement path (P) of the slab (10). It is mounted to one side end of the support shaft 56 rotatably connected, one end of the support shaft 56 via the drive unit 58 and the joint means 60 provided to one side of the cast steel moving path (P). Cast iron snow removing device characterized in that the second removal roll 52 is configured to move up and down and rotate by the driving of the moving bearing block 54 and the driving unit 58. The support block (62a) of claim 5, wherein the bearing blocks (54a) (54b) to which the support shaft (56) on which the second removal roll (52) is mounted are connected are disposed on both sides of the cast steel moving path (P). Cast iron (62b) is fixed to the lower portion of the rod of the cylinder 64a (64b) vertically installed in the upper portion of the bearing block 54 is configured to move up and down when the cylinder 64 is driven Melting snow removal device

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