KR100748128B1 - Outlet guide with wet type dust collection function in a wire rolling mill - Google Patents

Abstract

The present invention relates to a wet dust collection exit guide of a wire rod mill that is capable of capturing and removing secondary scales in the form of fine dust by oxidation, and is formed in a portion where the wire rod enters and provided with a plurality of scale induction holes in the circumferential direction. A guide pipe 10 having 14; A rotating body formed at a position corresponding to the scale guide hole 14 and having at least one scale guide hole 38 provided in a circumferential direction and fitted to the outside of the guide pipe 10 so as to be rotatable in an axial direction ( 30); An impeller 34 fixed to an outer surface portion of the rotating body 30 so as to be located rearward from the scale guide hole 38 with respect to the direction in which the wire rod travels; It is formed to provide a space (41) surrounding at least the scale guide hole (38) and vanes 34 and sealed to the outside and supported by the guide pipe (10), the vanes with respect to the direction in which the wire rod proceeds The high pressure water injector 28 is mounted to supply the high pressure water to the rear side from the upper side of the 34, and the cover 20 is provided with the high pressure water outlet 29 so as to discharge the high pressure water supplied to the space 41 to the outside. ; And rotating body rotating means for rotating the rotating body 30 to generate an air flow in a direction in which the wire rod proceeds by the vane 34.

Wire Rod, Rolled, Scale, Water Cooled, Peeled

Description

Outlet guide with wet type dust collection function in a wire rolling mill}

1 is a schematic configuration diagram of a wire mill according to the prior art;

2 is a schematic configuration diagram of a wire rod mill with a wet dust collecting outlet guide according to the present invention;

Figure 3 is a cross-sectional view showing in detail the wet dust outlet guide according to the present invention;

4 is an exploded perspective view of the present invention.

※ Explanation of symbols about main part of drawing ※

10: guide pipe 12: wire passing hole

14 scale guide hole 20 cover

22: semi-circular groove 24: dividing wall

26: water spray nozzle 27, 29: high pressure water outlet

28: high pressure water injector 30: rotating body

32: bearing 34: vane

36: aberration 38: scale guide hole

41: forward space 42: rear space                 

W: wire rod

The present invention relates to an outlet guide of a wire mill, and more particularly, to a wet dust collection outlet guide of a wire mill which is capable of collecting and removing secondary scales in the form of fine dust by oxidation.

In general, the wire rod is manufactured by hot rolling using a sintering of metal, and a plurality of wire rod mills including a pair of rolls are disposed in the rolling direction to be responsible for wire rod rolling.

As shown in FIG. 1, a conventional wire rod mill has a pair of rolls 91 having semicircular grooves formed in a circumferential direction at a central portion thereof, and a coolant injection nozzle 92 for injecting coolant into the rolls 91. ), An inlet guide 93 configured to guide the wire rod W entering the roll 91, and an outlet guide 94 configured to guide the wire rod W discharged from the roll 91. In addition, the inlet guide 93 and the outlet guide 94 guides the wire W, which tends to be severely bent while the rolling is performed, so that it proceeds along a normal path.

However, there is no means for collecting and removing the secondary scale in the form of fine dust generated on the surface of the wire rod by oxidation while exposed to the atmosphere during rolling or after rolling is completed. This is because the secondary scale has problems such as deterioration of the rolling quality of the wire rod while being attached, grown, and dropped on the surface of the components forming the wire rod mill.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and provides a wet dust collection outlet guide of a wire mill, which is capable of wet collecting and removing the secondary scale in the form of fine dust generated on the surface of the wire rod by oxidation. There is a purpose.

As a technical configuration for achieving the above object, the present invention, the guide pipe having a plurality of scale guide holes provided in the circumferential direction is formed in the portion where the wire rod is entered; A rotating body formed at a position corresponding to the scale guide hole and having at least one scale guide hole provided in a circumferential direction, the rotor being fitted to the outside of the guide pipe and rotatably installed in an axial direction; A vane fixed to an outer surface portion of the rotating body so as to be located rearward from the scale guide hole with respect to a direction in which the wire rod travels; The high-pressure water injector is formed to provide a space for enclosing at least the scale guide hole and the vane to be sealed to the outside, and is supplied by the guide pipe and supplies high pressure water to the rear side of the vane in the direction in which the wire rod proceeds. A cover provided with a high pressure water outlet so as to discharge the high pressure water supplied to the space to the outside; And a wet dust collection outlet guide of the wire rod mill including a rotating body rotating means for rotating the rotating body to generate an air flow in a direction in which the wire rod proceeds by the vane.                     

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

FIG. 2 is a schematic configuration diagram of a wire rod mill provided with a wet dust collecting outlet guide according to the present invention, and the same reference numerals as those shown in FIG. Detailed description will be omitted.

3 is a cross-sectional configuration of the wet dust collecting outlet guide 1 according to the present invention in detail, a guide pipe 10 formed in a substantially hollow cylindrical shape to guide the wire (W), and the guide pipe ( 10 is included to cover the outside of the cover 20 is included.

The hollow portion of the guide pipe 10 is formed of a wire passage hole 12 which is long in the longitudinal direction, and a predetermined length of both ends in the longitudinal direction of the guide pipe 10 is further extended to the outside of the cover 20. The inner diameter of the wire rod through-hole 12 is gradually reduced along the direction of travel of the wire rod W over a predetermined length of the end where the wire rod W enters, while remaining portions have the same size. It is preferable to be set to have.

The cover 20 is formed to have a substantially the same shape is coupled to be decomposed with each other by a bolt or the like includes an upper cover (20A) and a lower cover (20B) provided to surround the outside of the guide pipe (10) In addition, a gasket 21 is installed between the contact surfaces of the covers 20A and 20B to prevent leakage of the fluid as shown in FIG.

In addition, the lids 20A and 20B are formed at semi-circular grooves 22 corresponding to the outer diameter of the guide pipe 10 at both ends in the longitudinal direction so that the guides are coupled by the semicircular grooves 22. A circular hole is provided to which the pipe 10 is fitted and fixed, and more preferably, an O-ring 22a is mounted in the circular hole formed by the semi-circular groove 22 so that the pipe 10 Leakage of the fluid through the gap between the outer surface and the semi-circular groove 22 is configured to be prevented.

In addition, the outside of the guide pipe 10 surrounded by the cover (20A) (20B) is fitted with a hollow pipe-shaped rotating body 30 is mounted to enable rotation in the axial direction, the guide pipe (10) ) And the rotor 30 have the same center line, the gap between the outer diameter surface of the guide pipe 10 and the inner diameter surface of the rotor 30 is set as small as possible, so that the flow of fluid through the gap It is provided so that it can be suppressed.

Both ends of the rotating body 30 are mounted to the cover 20A, 20B via a bearing 32 to be configured to smoothly rotate in the axial direction.

A sealed space is formed between the inner surface of the lid 20A and 20B and the outer surface of the rotor 30, which is formed integrally with the central portion of the inner surface of the lid 20A and 20B. The separation wall 24 separates the front space 41 and the rear space 42 with respect to the direction in which the wire rod W travels.

In addition, a rotor (34) and an aberration (36) are fixed to the rotor (30) and are disposed in the central portions of the front space (41) and the rear space (42), respectively. The car 34 generates a fluid flow in the axial direction while integrally rotating with the rotor 30, and the aberration 36 is sprayed from the water spray nozzle 26 connected to the cover 20A. Rotor rotating means for performing the function of converting the energy of the water to the mechanical energy to rotate the rotating body 30.

In addition, the guide pipe 10 is formed with a scale guide hole 14, the scale guide hole 14 is a scale such as dust introduced through the end portion of the guide pipe 10 to which the wire (W) enters It serves to guide the movement toward the front space (41). In addition, the scale induction hole 14 is provided in a plurality of circumferential direction of the guide pipe 10 and the end located on the outer surface than the end located on the inner surface of the guide pipe 10 is in the movement path of the wire rod (W). It is preferable to form it obliquely so as to be more rearward with respect.

In addition, a scale guide hole 38 is also formed in the rotating body 30. The scale guide hole 38 is used to scale the scale such as dust together with the scale guide hole 14 of the guide pipe 10 in the front space 41. The scale flow hole (14, 38) is set to be positioned in front of the vanes 34 with respect to the movement path of the wire rod (W).

The upper cover 20A is provided with a high-pressure water injector 28 to be mounted on the rear side than the vanes 34 with respect to the moving path of the wire rod W to inject high-pressure water into the front space 41. The lower cover 20B has a high pressure water outlet 29 through which the high pressure water injected through the high pressure water injector 28 is discharged and a high pressure water outlet 27 through which the high pressure water injected through the water spray nozzle 26 is discharged. Each is formed.

Of course, each of the high-pressure water outlet 27, 29 is connected to the water discharge pipe 50 via a coupler (coupler) to the apparatus of the present invention through the water spray nozzle 26 and the high-pressure water injector 28 It is possible to dispose the high pressure water discharged after being supplied to the water discharge pipe 50 is preferably discharged together with the high pressure water by connecting the water discharge pipe 50 connected to the high pressure water outlet 27 on the front space 41 side with the dust collector. It is good practice to separate the scales of dust and the like separately.

The operation of the present invention having the above configuration will be described.

The secondary scale of the wire rod, which is produced by oxidation due to the exposure of high temperature steel to the atmosphere during rolling or after rolling, has a very thin thickness and a dense structure with little pores, which is caused by thermal stress generated when cooling the wire. It is easily peeled off.

The present invention considers the generation and peeling characteristics of the secondary scale of the wire rod, and induces the scale of the wire rod surface to peel off by contacting the high-temperature water to the outer surface of the high-temperature wire rod that is rolled, and at the same time, the air flow along the direction of the wire rod. It is formed to guide the scale of the fine particle shape to a predetermined space so that it can be collected and removed by wet.

That is, as shown in Figure 3, when the rolling of the wire rod to spray high-pressure water through the water spray nozzle 26 and the high-pressure water injector 28, the high pressure sprayed through the water spray nozzle 26 Water is discharged to the outside through the high pressure water outlet 27 while rotating the aberration 36 of the rear space 42 formed inside the cover 20, the high pressure water injected through the high pressure water injector 28 is Cooling the outer surface of the wire rod (W) passing through the front space 41 so that the scale of the wire rod surface is peeled off and discharged to the outside through the high-pressure water outlet 29 together with the peeled scale is produced during the rolling of the wire rod The secondary scale is removed.

In particular, the rotation body 30 is driven to rotate in the axial direction by the rotation of the aberration 36, the vanes 34 fixed to the rotation body 30, located in the front space 41 also rotates at the same time It is driven, and the rotation of this vane 34 causes the flow of air from the front side to the rear side of the vane 34 with respect to the traveling direction of the wire rod W.

Therefore, the air leading to the tip of the wire passage hole 12 formed in the guide pipe 10, the scale guide hole 14 of the guide pipe 10, the scale guide hole 38 of the rotating body 30, and the front space 41. As the flow of water is generated, a scale such as dust scattered from the front of the guide pipe 10 flows into the front space 41 to the high pressure water outlet 29 together with the high pressure water injected through the high pressure water injector 28. It is discharged.

As described above, according to the wet dust collecting outlet guide of the wire rolling mill according to the present invention, water is brought into contact with the wire rod surface to induce scale peeling by cooling, and at the same time, the scale peeled off by contact with water is removed together with the cooling water. By doing so, it has an excellent effect which helps to improve the surface quality of the wire rod.

Claims (2)

A guide pipe 10 formed at a portion where the wire rod enters and having a plurality of scale guide holes 14 provided in a circumferential direction; A rotating body formed at a position corresponding to the scale guide hole 14 and having at least one scale guide hole 38 provided in a circumferential direction and fitted to the outside of the guide pipe 10 so as to be rotatable in an axial direction ( 30); An impeller 34 fixed to an outer surface portion of the rotating body 30 so as to be located rearward from the scale guide hole 38 with respect to the direction in which the wire rod travels; It is formed to provide a space (41) surrounding at least the scale guide hole (38) and vanes 34 and sealed to the outside and supported by the guide pipe (10), the vanes with respect to the direction in which the wire rod proceeds The high pressure water injector 28 is mounted to supply the high pressure water to the rear side from the upper side of the 34, and the cover 20 is provided with the high pressure water outlet 29 so as to discharge the high pressure water supplied to the space 41 to the outside. ; And, Wet dust collection exit guide of the wire rod mill including a rotating body rotating means for rotating the rotor 30 to generate an air flow in the direction of the wire rod proceeds by the vane (34). The method of claim 1, wherein the cover 20 is formed to provide a space 42 which is formed to the rear of the space 41 to the direction in which the wire rod proceeds to surround the rotor 30 and sealed to the outside, The rotating body rotating means, the aberration 36 is fixed to the outer surface portion of the rotating body 30 to be located in the space 42, so that the high-pressure water can be injected so that the aberration 36 is rotationally driven The water spray nozzle 26 installed in the cover 20 and the high pressure water outlet 27 formed in the cover 20 to discharge the high pressure water injected into the space 42 to the outside, characterized in that Wet dust collection outlet guide of wire rod rolling mill.

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