CN216738492U

CN216738492U - Remodeled air knife capable of reducing zinc particle splashing

Info

Publication number: CN216738492U
Application number: CN202123202472.XU
Authority: CN
Inventors: 孟鹏超; 史亚波; 武奇
Original assignee: Hebei New Jinwanli New Material Technology Co ltd
Current assignee: Hebei New Jinwanli New Material Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-06-14
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a remodel air knife for reducing zinc particles splashing, which comprises a hollow beam frame, one side of the hollow beam frame is fixedly provided with one end of an air knife connecting air pipe, the other end of the air knife connecting air pipe penetrates through the outer wall of the hollow beam frame and extends into the hollow beam frame, the air knife connecting air pipe is fixedly provided with a plurality of air outlet pipes, the air outlet pipes penetrate through the inner wall of the hollow beam frame and extend out of the hollow beam frame, the bottom of the hollow beam frame is fixedly provided with a supporting arm, the supporting arm is provided with an air knife through a regulator, and the air knife is communicated with the air outlet pipes through a hose; the air knife comprises an upper knife lip and a lower knife lip which are fixedly connected, a mixing cavity is formed inside the upper knife lip and the lower knife lip, the mixing cavity is communicated with a buffer cavity, and the buffer cavity is communicated with an air blowing channel.

Description

Remodeled air knife capable of reducing zinc particle splashing

Technical Field

The utility model relates to a hot-galvanize technical field especially relates to a modification air knife that reduces zinc grain and splash.

Background

The air knife comprises a strip-shaped air knife and an annular air knife, and is specially designed for blowing out strong high-speed air flow to blow off dust, blow dry water stains and cool. The air knife consists of a high intensity, uniform laminar air flow. In a hot galvanizing production line, an air knife technology is widely applied to the hot galvanizing production line in order to obtain a uniform and flat zinc coating. The air knife mainly forms air flow like a knife after compressed high-pressure gas passes through a knife lip gap, the air flow is sprayed to a steel strip, redundant zinc liquid on the surface of the steel strip coming out of the zinc pot is scraped, and the zinc liquid flows back to the zinc pot.

During the operation of the air knife, the phenomenon of zinc liquid splashing can occur due to the action of turbulent jet flow, thereby having adverse effect on the whole galvanizing line. In addition, in the process that high-speed air knife jet flow moves to the galvanized surface of a product, the axis of the jet flow can be bent, and reversely-rotating vortexes can alternately appear above and below the central line of the air knife jet flow, so that the jet flow pressure contacting the galvanized surface of the product is fluctuated and flocculated, the zinc coating on the surface of the product is uneven, and zinc ripples are generated. The zinc ripple not only affects the color and the touch of the product, but also accelerates the oxidation corrosion of the product and affects the product quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reduce modification air knife that zinc grain splashes to solve the problem that above-mentioned prior art exists, make the air current distribution that blows off from the gas blow passageway comparatively even, solved among the prior art air knife and appear the air current wadding in disorder easily, lead to the problem that zinc grain splashes, avoided the serious problem of face zinc flow line simultaneously, and reduce workman's work load, accelerate the production line progress, improved finished product quality.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a remodel air knife for reducing zinc particles splashing, which comprises a hollow beam frame, one side of the hollow beam frame is fixedly provided with one end of an air knife connecting air pipe, the other end of the air knife connecting air pipe penetrates through the outer wall of the hollow beam frame and extends into the hollow beam frame, the air knife connecting air pipe is fixedly provided with a plurality of air outlet pipes, the air outlet pipes penetrate through the inner wall of the hollow beam frame and extend out of the hollow beam frame, the bottom of the hollow beam frame is fixedly provided with a supporting arm, the supporting arm is provided with an air knife through an adjuster, and the air knife is communicated with the air outlet pipes through a hose; the air knife comprises an upper knife lip and a lower knife lip which are fixedly connected, a mixing cavity is formed inside the upper knife lip and the lower knife lip, the mixing cavity is communicated with a buffer cavity, and the buffer cavity is communicated with an air blowing channel.

Preferably, an air guide grid is arranged in the buffer cavity and fixedly connected with the inner walls of the upper knife lip and the lower knife lip.

Preferably, the mixing cavity is a cylindrical cavity, and the buffer cavity is step-shaped.

Preferably, go up sword lip top fixed mounting have a plurality of intake pipes, the hose pass through coupling assembling respectively with the connection can be dismantled to intake pipe and play tuber pipe, the intake pipe with the hybrid chamber intercommunication, go up the sword lip with regulator fixed connection.

Preferably, coupling assembling includes first flange, first flange with hose fixed connection, there is the second flange intake pipe and play tuber pipe on the fixed mounting respectively, intake pipe both ends slip cap is equipped with the thread tightening, the thread tightening with second flange threaded connection, first flange is located between second flange and the thread tightening, first flange with press from both sides between the second flange and be equipped with seal ring.

Preferably, a barrel-shaped filter screen is fixedly installed in the sealing washer, and a filter element is fixedly installed in the barrel-shaped filter screen.

Preferably, the hose is a corrugated metal tube.

Preferably, the number of hoses is 5-12.

The utility model discloses a following technological effect: the during operation, be connected air knife connecting tube and compressor, start the compressor, compressed air gets into the air knife connecting tube from the compressor, again from air knife connecting tube entering play tuber pipe, later get into the hose, it mixes to carry out the air current in the hybrid chamber to get into from the hose, cushion through the cushion chamber again, become the more even air current of pressure, finally blow off through the gas blowing channel, at this moment, the air current distribution that blows off from the gas blowing channel is comparatively even, it is in disorder to have solved among the prior art air knife air current flocculation that appears easily, lead to the problem that zinc grain splashes, the serious problem of face zinc flow line has been avoided simultaneously, and reduce workman's work load, accelerate the production line progress, the product quality has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a front view of a modified gas knife that reduces zinc particle splashing;

FIG. 2 is a right side view of a modified air knife that reduces zinc particle spatter;

FIG. 3 is a schematic view of the air knife and the connecting assembly viewed from below;

in the figure: 1. a hollow beam frame; 2. the air knife is connected with an air pipe; 3. an air outlet pipe; 4. a support arm; 5. an air knife; 6. a hose; 7. feeding a knife lip; 8. a lower knife lip; 9. a mixing chamber; 10. a buffer chamber; 11. an air guide grid; 12. an air inlet pipe; 13. a first flange; 14. a second flange; 15. screwing; 16. a sealing gasket; 17. a barrel-shaped filter screen; 18. an air blowing channel; 19. a filter element; 20. a hinged seat; 21. an electric push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The utility model provides a modified air knife for reducing zinc particles splashing, which comprises a hollow beam frame 1, one side of the hollow beam frame 1 is fixedly provided with one end of an air knife connecting air pipe 2, the other end of the air knife connecting air pipe 2 penetrates through the outer wall of the hollow beam frame 1 and extends into the hollow beam frame 1, the air knife connecting air pipe 2 is fixedly provided with a plurality of air outlet pipes 3, the air outlet pipes 3 penetrate through the inner wall of the hollow beam frame 1 and extend out of the hollow beam frame 1, the bottom of the hollow beam frame 1 is fixedly provided with a supporting arm 4, the supporting arm 4 is provided with an air knife 5 through an adjuster, and the air knife 5 is communicated with the air outlet pipes 3 through a hose 6; the air knife 5 comprises an upper knife lip 7 and a lower knife lip 8 which are fixedly connected, a mixing cavity 9 is formed inside the upper knife lip 7 and the lower knife lip 8, the mixing cavity 9 is communicated with a buffer cavity 10, and the buffer cavity 10 is communicated with an air blowing channel 18.

During operation, install this device on the growth equipment, then be connected air knife connecting pipe 2 and compressor, start the compressor, compressed air gets into air knife connecting pipe 2 from the compressor, get into air-out pipe 3 from air knife connecting pipe 2 again, later get into hose 6, carry out the air current mixture in getting into mixing chamber 9 from hose 6, buffer chamber 10 cushions again, become the more even air current of pressure, finally blow out through gas blowing channel 18, at this moment, the air current evenly distributed who blows out from gas blowing channel 18, the air current wadding is in disorder easily appears in the air knife among the solution prior art, the problem that leads to zinc grain to splash, the serious problem of face zinc flow line has been avoided simultaneously.

Further optimization scheme, upper slitter lip 7 and lower slitter lip 8 all adopt stainless steel, and the outside is equipped with chromium-plated layer, make its surface be difficult to glue the zinc sediment zinc grain and more can effectively avoid air knife streak, face zinc flow line, zinc grain to splash to reduce workman's work load, accelerate the production line progress, improve finished product quality.

According to the further optimized scheme, the air guide grids 11 are arranged in the buffer cavity 10, the air guide grids 11 are fixedly connected with the inner walls of the upper knife lip 7 and the lower knife lip 8, the air guide grids 11 can effectively eliminate pressure difference in the cavity, and the stability of air flow is improved.

Further optimization scheme, mixing chamber 9 is cylindrical cavity, and after the air current got into cylindrical cavity, the arc was made along cylindrical cavity's inner wall and is buckled, made the air current mix in mixing chamber 9 together, cushion chamber 10 is the step form, need buckle many times when the air current gos forward, and air pressure can be calm, and the zinc effect is scraped in the air current that collection gas channel 18 blew out, can the noise reduction simultaneously.

Further optimize the scheme, 7 top fixed mounting on the upper knife lip have a plurality of intake pipes 12, and hose 6 passes through coupling assembling and can dismantle with intake pipe 12 and play tuber pipe 3 respectively and be connected, conveniently maintains or changes intake pipe 12, intake pipe 12 and hybrid chamber 9 intercommunication, and upper knife lip 7 and regulator fixed connection conveniently adjust the angle of air knife 5. The adjuster comprises a bearing, the upper knife lip 7 is rotatably connected with the supporting arm through the bearing, the side wall of the upper knife lip 7 and the side wall of the hollow beam frame 1 are respectively and fixedly provided with hinged seats 20, an electric push rod 21 is hinged between the two hinged seats 20, and the angle of the upper knife lip 7 can be adjusted by adjusting the extension of the electric push rod 21, so that the air knife 5 rotates around the joint of the upper knife lip 7 and the supporting arm, and the air blowing angle of the air knife 5 is adjusted.

According to a further optimized scheme, the connecting assembly comprises a first flange 13, the first flange 13 is fixedly connected with the hose 6, a second flange 14 is fixedly installed on the air inlet pipe 12 and the air outlet pipe 3 respectively, threaded fasteners 15 are slidably sleeved at two ends of the air inlet pipe 12, the threaded fasteners 15 are in threaded connection with the second flange 14, the first flange 13 is located between the second flange 14 and the threaded fasteners 15, a sealing gasket 16 is clamped between the first flange 13 and the second flange 14, during installation, the sealing gasket 16 is placed between the first flange 13 and the second flange 14 to align the first flange 13 and the second flange 14, then the threaded fasteners 15 are pulled down to enable inner threaded fasteners to align with outer threads of the second flange 14, the threaded fasteners 15 can be screwed, the sealing gasket 16 is squeezed by the first flange 13 and the second flange 14, gaps between the first flange 13 and the second flange 14 are blocked, and leakage of compressed air is prevented.

Further optimize the scheme, fixed mounting has tubbiness filter screen 17 in seal ring 16, and fixed mounting has filter core 19 in tubbiness filter screen 17, and tubbiness filter screen 17 filters compressed gas with the cooperation of filter core 19, prevents to have impurity to blow to the galvanized face on, leads to the galvanized face smoothness not up to standard, influences product quality, and convenient the dismantlement of here simultaneously makes tubbiness filter screen 17 and filter core 19 conveniently change, effectively reduces the maintenance cost.

In a further optimized scheme, the hose 6 is a corrugated metal pipe, and when the air knife 5 vibrates, the corrugated metal pipe can absorb the interaction force between the air knife 5 and the hollow beam frame 1, so that the effects of vibration reduction and noise reduction are achieved.

In a further optimized scheme, the number of the hoses 6 is 5-12, preferably 9, and 9 hoses 6 are adopted for pressure division, so that the air pressure is more uniform, the air volume is reduced, and the gathering and jetting are performed, and the noise is reduced.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A modified air knife for reducing zinc particle splashing is characterized in that: the air knife comprises a hollow beam frame (1), one end of an air knife connecting air pipe (2) is fixedly installed on one side of the hollow beam frame (1), the other end of the air knife connecting air pipe (2) penetrates through the outer wall of the hollow beam frame (1) and extends into the hollow beam frame (1), a plurality of air outlet pipes (3) are fixedly installed on the air knife connecting air pipe (2), the air outlet pipes (3) penetrate through the inner wall of the hollow beam frame (1) and extend to the outside of the hollow beam frame (1), a supporting arm (4) is fixedly installed at the bottom of the hollow beam frame (1), an air knife (5) is installed on the supporting arm (4) through a regulator, and the air knife (5) is communicated with the air outlet pipes (3) through hoses (6); the air knife (5) comprises an upper knife lip (7) and a lower knife lip (8) which are fixedly connected, a mixing cavity (9) is formed inside the upper knife lip (7) and the lower knife lip (8), the mixing cavity (9) is communicated with a buffer cavity (10), and the buffer cavity (10) is communicated with an air blowing channel (18).

2. A modified air knife for reducing zinc particle spatter according to claim 1 wherein: an air guide grid (11) is arranged in the buffer cavity (10), and the air guide grid (11) is fixedly connected with the inner walls of the upper knife lip (7) and the lower knife lip (8).

3. A modified air knife for reducing zinc particle spatter according to claim 1 wherein: the mixing cavity (9) is a cylindrical cavity, and the buffer cavity (10) is step-shaped.

4. A modified air knife for reducing zinc particle spatter according to claim 1 wherein: go up sword lip (7) top fixed mounting have a plurality of intake pipes (12), hose (6) through coupling assembling respectively with intake pipe (12) can dismantle the connection with play tuber pipe (3), intake pipe (12) with hybrid chamber (9) intercommunication, go up sword lip (7) with regulator fixed connection.

5. A modified air knife to reduce zinc splattering according to claim 4, wherein: coupling assembling includes first flange (13), first flange (13) with hose (6) fixed connection, fixed mounting has second flange (14) respectively on intake pipe (12) and the play tuber pipe (3), intake pipe (12) both ends slip cap is equipped with screw thread knot (15), screw thread knot (15) with second flange (14) threaded connection, first flange (13) are located between second flange (14) and screw thread knot (15), first flange (13) with press from both sides between second flange (14) and be equipped with seal ring (16).

6. A modified air knife to reduce zinc splattering according to claim 5, wherein: a barrel-shaped filter screen (17) is fixedly arranged in the sealing washer (16), and a filter element (19) is fixedly arranged in the barrel-shaped filter screen (17).

7. A modified air knife to reduce zinc particle spatter according to claim 1 wherein: the hose (6) is a corrugated metal pipe.

8. A modified air knife for reducing zinc particle spatter according to claim 1 wherein: the number of the hoses (6) is 5-12.