CN211445864U

CN211445864U - Hot galvanizing nitrogen wiping device

Info

Publication number: CN211445864U
Application number: CN202020111503.7U
Authority: CN
Inventors: 黄伟良; 苟光荣
Original assignee: Taizhou Zhiyou Steel Wire Co ltd
Current assignee: Taizhou Zhiyou Steel Wire Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-08
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a hot galvanizing nitrogen wiping device, which comprises a supporting seat component, a plurality of air knife blowing nozzles which are in one-to-one correspondence with steel wires, and a nitrogen pipe which is connected with the air knife blowing nozzles and used for supplying air; the support seat assembly fixes each air knife blow nozzle on a vertical wiring path of a corresponding steel wire above the zinc liquid level; the air knife blow nozzle comprises a blow nozzle body, a steel wire routing pore canal vertically penetrating through the blow nozzle body and a nitrogen flow channel extending inwards from the side wall of the blow nozzle body; the tail end of the nitrogen flow channel is communicated with the steel wire routing pore channel. The steel wire is wired from an air knife blowing nozzle of the device, nitrogen is adopted for blowing to form a uniform air knife in the circumferential direction of the steel wire, and redundant zinc liquid on the surface of the steel wire is wiped and flows into a zinc pot. Through the control to nitrogen gas jetting flowmeter jetting pressure, can realize carrying out the control of zinc layer thickness to the product of different diameters, different zinc volume requirements.

Description

Hot galvanizing nitrogen wiping device

Technical Field

The utility model relates to a steel wire hot-galvanize device, concretely relates to hot-galvanize nitrogen gas wiping arrangement.

Background

The hot galvanizing of steel wire is a production method of drawing high-quality carbon structural steel wire rod into steel wire and dip-plating the steel wire in the hot molten zinc liquid, and its production speed is fast, coating is thick but uneven, colour is darker and zinc metal is consumed more. The steel wire is usually wiped when the steel wire is discharged from the liquid surface of the zinc pot, and the traditional wiping mode mainly adopts the mode that a layer of charcoal is covered on the liquid surface and the charcoal is used for wiping. And then, a mechanical wiping mode is developed, the aperture is designed according to the specification of the steel wire by adopting a high-temperature resistant material, and the wiping position is directly wiped when the steel wire is discharged out of the liquid surface of the zinc pot.

However, there are still many drawbacks to this way of wiping:

1) the steel wire is in direct contact with the pad after flowing out of the liquid level, the heat dissipation is fast, the zinc can be rapidly cooled, and the zinc layer can be gathered at the wiping part after the operation time is 5 hours and needs to be continuously cleaned;

2) the amount of zinc is manually adjusted, and quantification cannot be performed;

3) long-term stable operation cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects of the prior art, the utility model provides a hot-galvanize nitrogen gas wiping arrangement, the device can be stable, the unnecessary zinc of every steel wire is got rid of to the efficient.

The technical scheme is as follows: the hot galvanizing nitrogen wiping device comprises a supporting seat component, a plurality of air knife blowing nozzles which are in one-to-one correspondence with steel wires, and a nitrogen pipe which is connected with the air knife blowing nozzles and used for supplying air; the support seat assembly fixes each air knife blow nozzle on a vertical wiring path of a corresponding steel wire above the zinc liquid level; the air knife blow nozzle comprises a blow nozzle body, a steel wire routing pore canal vertically penetrating through the blow nozzle body and a nitrogen flow channel extending inwards from the side wall of the blow nozzle body; the tail end of the nitrogen flow channel is communicated with the steel wire routing pore channel.

And the nitrogen pipes correspond to the air knife blowing nozzles one to one, and each nitrogen pipe is provided with an adjusting valve and a flowmeter.

The nitrogen flow channel comprises two air inlets arranged on the side wall of the blowing nozzle body, an annular vertical chamber connected with the two air inlets, and an inverted cone chamber connected to the lower end of the vertical chamber and extending obliquely downwards; the inverted cone cavity is communicated with the steel wire routing pore passage and divides the steel wire routing pore passage into an upper part and a lower part; and the aperture of the lower part of the steel wire routing pore passage is gradually enlarged from top to bottom.

The vertical chamber comprises an upper chamber, a lower chamber and an annular partition part between the upper chamber and the lower chamber, wherein a plurality of air holes are arranged at intervals on the annular partition part, and the air holes are communicated with the upper chamber and the lower chamber.

The supporting seat assembly comprises a steel beam base and adjusting and supporting devices which are arranged on the steel beam base and correspond to the air knife blowing nozzles one by one; the adjusting and supporting device comprises a blowing nozzle support, and the air knife blowing nozzle is fixed on the blowing nozzle support.

The adjusting and supporting device further comprises a first part, two springs arranged up and down and two first bolts; the spring is abutted between the steel beam base and the first part; the first part is provided with a first adjusting hole at the abutting position of the spring, and an eccentric wheel component is arranged in the first adjusting hole in a matched mode; the first bolt penetrates through the eccentric wheel component and the spring from the outer side of the first part in sequence, and the first part is fixed on the steel beam base.

The adjusting and supporting device further comprises a second part and a second bolt, the second part is provided with a waist-shaped hole with the length extending in the vertical direction, the second bolt penetrates through the waist-shaped hole to fix the second part on the first part, and the blowing nozzle support is fixed on the lower portion of the second part.

Has the advantages that: according to the hot galvanizing nitrogen wiping device, the air knife blowing nozzle is arranged at the vertical wiring position of the zinc liquid level of the steel wire, the steel wire is wired from the air knife blowing nozzle, and nitrogen is adopted to blow and form a uniform air knife in the circumferential direction of the steel wire, so that redundant zinc liquid on the surface of the steel wire is wiped and flows into a zinc pot. Through the control to nitrogen gas jetting flowmeter jetting pressure, can realize carrying out the control of zinc layer thickness to the product of different diameters, different zinc volume requirements.

Drawings

FIG. 1 is a schematic structural view of a hot dip galvanizing nitrogen wiping device of the present invention;

FIG. 2 is an enlarged view of a portion of the hot dip galvanizing nitrogen wiping apparatus of FIG. 1;

FIG. 3 is a schematic view of the hot dip galvanizing nitrogen gas wiping device in the direction A in FIG. 1;

FIG. 4 is a schematic view of an air knife nozzle according to the present invention;

fig. 5 is a schematic cross-sectional view of the air knife blower of fig. 4 along its central axis.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-5, a hot dip galvanizing nitrogen wiping device comprises a plurality of air knife nozzles 1 corresponding to the number of steel wires, wherein each air knife nozzle 1 is fixed on a vertical routing path of each corresponding steel wire when the steel wire is discharged from a zinc liquid level 100 through a support seat assembly, so that each steel wire can be routed from the corresponding air knife nozzle 1. Each air knife blow nozzle 1 is provided with a nitrogen pipe 2 correspondingly connected with independent air supply, and each nitrogen pipe 2 is provided with an independent flow regulating valve and an independent flow meter.

Referring to fig. 4 and 5, the air knife nozzle 1 includes a nozzle body 11, a wire routing hole 12 vertically penetrating the nozzle body 11, and a nitrogen gas flow channel extending inward from a side wall of the nozzle body 11 and communicating with the wire routing hole 11 at a distal end thereof. The nitrogen gas flow channel comprises two symmetrical air inlets 13 arranged on the side wall of the blowing nozzle body 11, an annular vertical chamber connected with the two air inlets 13, and an inverted cone chamber 14 connected to the lower end of the vertical chamber and extending obliquely downwards. The inverted cone chamber 14 is communicated with the steel wire routing pore passage 12, the formed section divides the steel wire routing pore passage 12 into an upper part and a lower part, and the aperture of the lower part of the steel wire routing pore passage 12 is gradually enlarged from top to bottom to form an air knife lip. After the steel wire is discharged from the zinc liquid level, the steel wire is routed upwards from the steel wire routing pore channel 12, nitrogen gas surrounds the steel wire at the lip of the air knife to form a downward blowing air knife, and redundant zinc on the surface of the steel wire is erased.

In order to enhance the wiping effect of the air knife, the vertical chamber is divided into an upper chamber 15 and a lower chamber 16, an annular partition 17 is arranged between the upper chamber 15 and the lower chamber 16, and the annular partition 17 is provided with a plurality of air holes 18 which are communicated with the upper chamber 15 and the lower chamber 16 at intervals.

Referring to fig. 2 and 3, the supporting base assembly includes a steel beam base 3, and adjusting and supporting devices disposed on the steel beam base 3 and corresponding to the air knife nozzles 1. The adjusting and supporting device is used for fixing the air knife blowing nozzle 1 and adjusting the position of the air knife blowing nozzle 1 to enable the air knife blowing nozzle to be aligned with the routing path of the steel wire, so that the surface of the steel wire is prevented from being scratched due to misalignment. The adjusting and supporting device comprises a blowing nozzle support 4, and the air knife blowing nozzle 1 is fixed on the blowing nozzle support 4.

The adjusting and supporting device further comprises a first part 5, two springs 6 arranged up and down and two first bolts 7. The two springs 6 rest between the steel beam base 3 and the first part 5, while the first part 5 is provided with a first adjustment hole 51 at the rest position of the springs 6, and an eccentric member 52 is arranged inside the first adjustment hole 51 in a matching way. The first bolt 7 passes through the eccentric member 52 and the spring 6 in this order from the outside of the first part 5, and fixes the first part to the steel beam base 4. Further, the adjusting and supporting device further comprises a second part 8 and a second bolt 9, the second part 8 is provided with a slotted hole 81 with the length extending in the vertical direction, the second bolt 9 penetrates through the slotted hole 81 to fix the second part 8 on the first part 5, the nozzle support 4 is fixed at the lower part of the second part 8, and the air knife nozzle 1 is fixed on the nozzle support 4.

The distance between the first part 5 and the steel beam base 3 is adjusted through the cooperation of the spring 6 and the first bolt 7, so that the front and back positions of the air knife blow nozzle 1 are adjusted. The left and right positions of the air knife nozzle 1 are adjusted by the angle of the eccentric member 52 in the first adjusting hole 51 in combination with the first bolt 7. The height of the air knife blow nozzle 1 from the zinc liquid level 100 is adjusted by adjusting the relative positions of the second bolt 9 and the waist-shaped hole 81.

The design of the independent split air knife blowing nozzle 1 can obtain continuous concentric coating, and is easy to operate and thread. The nitrogen flow rate of each air knife blowing nozzle 1 is individually controlled, and is adjusted by an adjusting valve and a flow meter. The zinc layer is controlled by changing the pressure and flow of nitrogen in the air knife blowing nozzle 1 and the running speed of the steel wire, so that the zinc layer can be suitable for medium-speed and high-speed production, and each steel wire can run at different speeds to obtain coating thicknesses with different requirements. By using the principle that nitrogen is inert gas, the zinc layer of the steel wire is controlled, and meanwhile, zinc liquid at the leading-out part of the steel wire can be protected from being oxidized, so that the zinc consumption can be reasonably reduced. The steel wire is cooled by circulating water immediately after the steel wire is discharged from the nozzle of the cutter, so that the formation of zinc oxide and an alloy layer is prevented.

Claims

1. A hot galvanizing nitrogen wiping device is characterized by comprising a supporting seat assembly, a plurality of air knife blowing nozzles (1) which correspond to steel wires one by one, and a nitrogen pipe (2) which is connected with the air knife blowing nozzles (1) and used for supplying air; the supporting seat assembly fixes each air knife blowing nozzle (1) on a vertical routing path of a corresponding steel wire above a zinc liquid level (100); the air knife blow nozzle (1) comprises a blow nozzle body (11), a steel wire routing pore passage (12) vertically penetrating through the blow nozzle body (11), and a nitrogen flow passage extending inwards from the side wall of the blow nozzle body (11); the tail end of the nitrogen flow channel is communicated with a steel wire routing pore channel (12).

2. A hot dip galvanizing nitrogen wiping device according to claim 1, characterized in that the nitrogen pipes (2) correspond to the air knife blowing nozzles (1) one by one, and each nitrogen pipe (2) is provided with an adjusting valve and a flow meter.

3. A hot dip galvanizing nitrogen gas wiping device according to claim 1, characterized in that the nitrogen gas flow channel comprises two gas inlets (13) arranged on the side wall of the blow nozzle body (11), an annular vertical chamber connected with the two gas inlets (13), and an inverted cone chamber (14) connected with the lower end of the vertical chamber and extending obliquely downwards; the inverted cone cavity (14) is communicated with the steel wire routing pore passage (12) and divides the steel wire routing pore passage (12) into an upper part and a lower part; the aperture of the lower part of the steel wire routing pore channel (12) is gradually enlarged from top to bottom.

4. A hot dip galvanizing nitrogen wiping device according to claim 3, characterized in that the vertical chamber comprises an upper chamber (15), a lower chamber (16) and an annular partition (17) between the upper chamber (15) and the lower chamber (16), the annular partition (17) is provided with a plurality of air holes (18) at intervals, and the air holes (18) are communicated with the upper chamber (15) and the lower chamber (16).

5. A hot dip galvanizing nitrogen wiping device according to claim 1, wherein the support seat assembly comprises a steel beam base (3), and an adjusting support device which is arranged on the steel beam base (3) and corresponds to each air knife blow nozzle (1) one by one; the adjusting and supporting device comprises a blowing nozzle support (4), and the air knife blowing nozzle (1) is fixed on the blowing nozzle support (4).

6. Hot dip galvanizing nitrogen wiping device according to claim 5, characterized in that the adjusting and supporting device further comprises a first part (5), two springs (6) arranged up and down, and two first bolts (7); the spring (6) rests between the steel beam base (3) and the first part (5); the first part (5) is provided with a first adjusting hole (51) at the abutting position of the spring (6), and an eccentric wheel component (52) is arranged in the first adjusting hole (51) in a matching way; the first bolt (7) passes through the eccentric wheel component (52) and the spring (6) in sequence from the outer side of the first part (5) and fixes the first part on the steel beam base (3).

7. Hot dip galvanizing nitrogen wiping device according to claim 6, characterized in that the adjusting and supporting device further comprises a second part (8) and a second bolt (9), the second part is provided with a waist-shaped hole (81) with the length extending in the vertical direction, the second bolt (9) penetrates through the waist-shaped hole (81) to fix the second part (8) on the first part (5), and the nozzle support (4) is fixed on the lower part of the second part (8).