CN211036058U - Slag blowing device - Google Patents
Slag blowing device Download PDFInfo
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- CN211036058U CN211036058U CN201922101102.3U CN201922101102U CN211036058U CN 211036058 U CN211036058 U CN 211036058U CN 201922101102 U CN201922101102 U CN 201922101102U CN 211036058 U CN211036058 U CN 211036058U
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Abstract
The utility model discloses a slag blowing device, which belongs to the technical field of slag removal of galvanized steel sheets. The device comprises an air blowing pipeline, wherein the air blowing pipeline is arranged above the surface of the molten zinc through a supporting structure, the air blowing pipeline is provided with an air outlet, and the air outlet direction of the air outlet faces the surface of the molten zinc. Wherein blow in the pipeline of blowing and blow protective gas to steel sheet and zinc liquid surface contact position, when making protective gas blow the direction and keep away from belted steel through the adjustment pipeline angle of blowing, steerable zinc dross is gathered in the shirt rim corner, keep away from belted steel, realize stove nose shirt rim internal control sediment function, when making protective gas blow the direction and be close to belted steel through the adjustment pipeline angle of blowing, can blow the zinc dross of shirt rim corner gathering fast to belted steel, take away fast by belted steel, realize stove nose shirt rim internal slag removal function, increase the clearance interval, alleviate operative employee intensity of labour, eliminate the potential safety hazard. Solves the problems of incomplete cleaning of zinc slag in the furnace nose skirt edge and high labor intensity in the prior method.
Description
Technical Field
The utility model belongs to the technical field of galvanized steel sheet scarfing cinder, specifically speaking relates to a blow sediment device.
Background
Continuous galvanized steel sheets (GI for short) have been widely used in industrial production because of their good surface quality, excellent corrosion resistance and low cost. With the acceleration of the industrialization process of China, the dosage of the compound is larger and larger. However, during the galvanizing process, zinc dross in the zinc liquid is an important factor influencing the surface quality of galvanizing. The production of zinc dross not only increases the consumption of zinc, but also reduces the product quality. The main source of the zinc dross is iron in the strip steel matrix. According to the Zn-Fe-Al ternary phase diagram, when iron is supersaturated, aluminum in a zinc pot can react with the iron and the zinc to form an Fe-Zn-Al intermetallic compound, and the zinc slag mainly comprises iron-containing compounds which are divided into Fe-Zn compounds and Al-Fe compounds. The Al-Fe compound (Fe2Al5Znx) has a lower density than zinc and becomes top dross, while the Fe-Zn compound (FeZn13 or FeZn7) has a higher density than zinc and becomes bottom dross. For GI, controlling the effective aluminum content in the zinc bath can convert the bottom slag in the zinc bath into surface slag, thereby facilitating the removal. The surface slag on the surface of the zinc liquid is easily removed by a method of fishing, but the surface slag in the zinc liquid in the furnace nose is difficult to remove. Over time, the more the slag inside the furnace nose is accumulated, the more the slag is easily adhered to the surface of the strip steel, which causes the surface of the strip steel to be scratched and the defects of zinc particles and zinc scars to be formed. Therefore, timely cleaning of the slag floating on the surface of the zinc liquid at the nose of the furnace is a key element for ensuring the quality of the strip steel.
At present, in the production process, the inside of the furnace nose skirt edge is isolated from the outside, the existing means can only use a seamless steel tube to blow nitrogen under the liquid level of zinc liquid inside the furnace nose skirt edge manually and periodically to generate waves, zinc slag is adhered to the surface of strip steel by using the waves of the zinc liquid, partial strip steel is sacrificed to take the zinc slag out of the furnace nose skirt edge area, and then the strip steel with the defect of the zinc slag adhesion at the section is cut off, so that the strip steel waste is caused. The existing method cannot thoroughly clean the zinc slag in the furnace nose skirt; the cleaning is carried out once every 4 hours, the cleaning interval time is short, and the labor intensity is high; and the strip steel is cut off by 300 meters each time, thus wasting the strip steel length; the manual cleaning intensity is high, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
1. Problems to be solved
Aiming at the problems of incomplete zinc slag cleaning and high labor intensity in the furnace nose skirt rim by the existing method, the utility model provides a slag blowing device, wherein a gas blowing pipeline is arranged above the surface of zinc liquid through a supporting structure and is provided with a gas outlet, the gas outlet direction of the gas outlet faces the surface of the zinc liquid, protective gas is blown in the gas blowing pipeline to the contact position of a steel plate and the surface of the zinc liquid, and when the protective gas is blown in the direction away from strip steel by adjusting the angle of the gas blowing pipeline, the zinc slag can be controlled to be gathered at the corner of the skirt rim and be away from the strip steel, so that the slag control function in the furnace nose skirt rim is realized; when the protective gas blows the direction to point to the strip steel by adjusting the angle of the blowing pipeline, the zinc slag gathered at the corner of the skirt edge can be quickly blown to the strip steel and quickly taken away by the strip steel, so that the slag removal function in the skirt edge of the furnace nose is realized, the cleaning interval is increased, the labor intensity of operators is reduced, and the potential safety hazard is eliminated.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The slag blowing device comprises a blowing pipeline, wherein the blowing pipeline is arranged above the surface of molten zinc through a supporting structure, the blowing pipeline is provided with an air outlet, and the air outlet direction of the air outlet faces the surface of the molten zinc.
Preferably, the air blowing pipelines are at least one pair, penetrate through the furnace nose skirt and are symmetrically arranged at two sides of the steel plate through the supporting structure.
Preferably, the supporting structure comprises a telescopic mechanism, one connecting end of the telescopic mechanism is fixed to a furnace nose steel structure, the other connecting end of the telescopic mechanism is connected with the air blowing pipeline, a vertical strip hole is formed in the skirt edge of the furnace nose, and the air blowing pipeline penetrates through the strip hole.
Preferably, the telescopic mechanism comprises one of an electric screw rod or an air cylinder.
Preferably, the strip holes are hermetically connected with the air blowing pipeline by adopting flexible expansion joints.
Preferably, the soft expansion joint is a stainless steel metal expansion joint.
More preferably, a nozzle is arranged at an air outlet of the air blowing pipeline, and an opening of the nozzle is flat.
3. Advantageous effects
One or more technical solutions in the present application have at least one or more of the following technical effects:
(1) the utility model provides a slag blowing device, wherein an air blowing pipeline is arranged above the surface of molten zinc through a supporting structure, the air blowing pipeline is provided with an air outlet, the air outlet direction of the air outlet faces the surface of the molten zinc, and protective gas is introduced into the air blowing pipeline; the protective gas is blown to the contact position of the steel plate and the zinc liquid surface, so that zinc slag is controlled to be gathered at the corner of the skirt edge and is far away from the strip steel, the slag control function in the skirt edge of the furnace nose is realized, the cleaning interval is increased, the labor intensity of operators is reduced, and potential safety hazards are eliminated;
(2) the utility model arranges the air blowing pipeline above the surface of the zinc liquid, and compared with the prior art that nitrogen is blown into the furnace under the zinc liquid level in the furnace nose skirt rim to generate waves; therefore, the air blowing pipeline is not corroded by zinc liquid and does not need to be replaced frequently, and the economic benefit is improved;
(3) the utility model discloses well electronic lead screw is connected with the gas blow pipeline, has seted up vertical slotted hole on the stove nose shirt rim, the gas blow pipeline passes the slotted hole, through electronic regulation lead screw stroke regulation gas blow pipeline angle, when adjusting gas blow pipeline angle promptly and make the protective gas blow the direction and point to belted steel, blow the zincilate to belted steel surface fast, this kind of mode can be fast with all sweeps of zincilate to belted steel surface, is walked by the belted steel board, shortens extravagant belted steel length, alleviates operative employee site operation's intensity of labour and safety risk;
(4) the flexible expansion joint is hermetically connected with the air blowing pipeline in the middle strip hole, so that the external air can be prevented from entering the furnace nose and influencing the quality of the plate steel;
(5) the utility model discloses well gas blowing pipe's gas outlet is equipped with the nozzle, the opening of nozzle is the platykurtic, can make protective gas blow off with higher pressure, and control zinc dross gathers in shirt rim corner, and it is better to make the blowing effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of a slag blowing device according to an embodiment of the present invention;
fig. 2 is an installation schematic view of the slag blowing device of the utility model.
In the figure:
10. a furnace nose skirt; 101. a bar hole;
20. an air blowing pipeline; 201. a nozzle; 202. a flexible expansion joint;
30. an electric lead screw;
40. a fixed end;
50. and (3) a steel plate.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will also be noted that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
It should also be noted that the terms "a," "an," "two," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-2, the present embodiment provides a slag blowing device, wherein a blowing pipe 20 is arranged above the surface of molten zinc through a supporting structure, the blowing pipe is provided with an air outlet, the air outlet of the air outlet faces the surface of the molten zinc, and a protective gas is blown into the blowing pipe; the protective gas is blown to the contact position of the steel plate 50 and the zinc liquid surface, so that zinc slag is controlled to be gathered at the corner of the skirt edge and is far away from the strip steel, the slag control function in the skirt edge of the furnace nose is realized, the cleaning interval is increased, the labor intensity of operators is reduced, and potential safety hazards are eliminated.
The blowing pipeline 20 is of a pipe body structure, and the material of the blowing pipeline can be carbon steel pipelines or stainless steel; in the embodiment, a stainless steel seamless steel pipe is selected and arranged above the surface of the molten zinc through a supporting structure, the stainless steel seamless steel pipe is provided with a gas outlet, and the gas outlet direction of the gas outlet faces the surface of the molten zinc. Blowing a shielding gas into the blowing pipe, wherein the shielding gas can be nitrogen, helium, neon or the like as will be understood by those skilled in the art; the protective gas in this embodiment is nitrogen, and a pipe network nitrogen can be used to supply gas to the blowing pipe 20.
Furthermore, in order to control the zinc dross on both sides of the steel plate 50, at least one pair of air blowing pipes 20 is arranged, which pass through the furnace nose skirt 10 and are symmetrically arranged on both sides of the steel plate 50 through a support structure.
Furthermore, in order to blow out the protective gas at a higher pressure and control the zinc dross to gather at the corner of the furnace nose skirt edge 10, a nozzle 201 is arranged at the gas outlet of the gas blowing pipeline, and the opening of the nozzle 201 is flat.
The supporting structure comprises a telescopic mechanism, and a person skilled in the art should understand that the telescopic mechanism can comprise an electric screw rod or an air cylinder and the like, wherein the electric screw rod 30 is selected for use in the embodiment, one connecting end of the electric screw rod 30 is fixed at the fixed end 40, the fixed end 40 is a furnace nose steel structure and is connected with the electric screw rod 30 through a pin shaft, the other connecting end of the electric screw rod 30 is connected with the air blowing pipeline 20, a vertical strip hole 101 is formed in the furnace nose skirt 10, the air blowing pipeline 20 penetrates through the strip hole 101, the angle of the air blowing pipeline is adjusted through the electric adjusting screw rod stroke, and the zinc slag is blown to the surface of the strip steel quickly.
Furthermore, in order to prevent outside air from entering the furnace nose and influencing the generation quality of the plate steel, the strip holes are internally provided with the soft expansion joints which are hermetically connected with the air blowing pipeline, and the soft expansion joints are made of stainless steel metal expansion joints, so that the installation strength of the air blowing pipeline can be improved.
The working principle of the embodiment is as follows: supplying nitrogen to the air blowing pipeline 20 through a pipe network nitrogen, blowing nitrogen to the band steel and zinc liquid surface area through the other end of the air blowing pipeline, wherein the stainless steel pipeline is in sealing connection with the furnace nose skirt edge through a soft expansion joint, and performing angle adjustment by using an electric screw rod, and during the galvanizing production period, adjusting the pipeline angle to a slag control position by adjusting the stroke of the screw rod, namely the central line angle of the air blowing pipeline 20 and the furnace nose skirt edge 10 is 40-70 degrees; opening a nitrogen valve, blowing nitrogen to the contact position of a steel plate and a zinc liquid surface, controlling zinc slag to gather at the corner of a skirt edge, keeping away from the strip steel, when a worker observes that the zinc slag gathers in the skirt edge of a furnace nose to be close to the strip steel in a camera, adjusting the angle of a pipeline to a slag removal position by adjusting the stroke of a screw rod, namely, the angle of a central line between a blowing pipeline 20 and the skirt edge 10 of the furnace nose is 10-30 degrees, blowing the zinc slag to the surface of the strip steel quickly by the mode, removing the zinc slag by a strip steel plate, adjusting the angle of the pipeline back to the slag control position after blowing the zinc slag away, finally realizing the slag control function, strengthening the slag removal efficiency, increasing the cleaning time interval, shortening the length of wasted strip steel, reducing the labor intensity and the safety.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A slag blowing device is characterized by comprising air blowing pipelines, wherein the air blowing pipelines are arranged above the surface of molten zinc through a supporting structure and are provided with air outlets, the air outlet directions of the air outlets face the surface of the molten zinc, at least one pair of air blowing pipelines penetrate through the furnace nose skirt edges and are symmetrically arranged at two sides of a steel plate through the supporting structure, each supporting structure comprises a telescopic mechanism, one connecting end of each telescopic mechanism is fixed at a fixed end, and the other end of each telescopic mechanism is connected with the corresponding air blowing pipeline; vertical strip holes are formed in the furnace nose skirt edge, and the air blowing pipeline penetrates through the strip holes.
2. The slag blowing device according to claim 1, wherein the telescoping mechanism comprises one of an electric screw or a cylinder.
3. The slag blowing device according to claim 2, wherein the bar holes are hermetically connected with the blowing pipeline by adopting soft expansion joints.
4. The slag blowing device according to claim 3, wherein the soft expansion joint is a stainless steel metal expansion joint.
5. The slag blowing device according to claim 1, wherein a nozzle is provided at an air outlet of the air blowing pipe, and an opening of the nozzle is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101102.3U CN211036058U (en) | 2019-11-28 | 2019-11-28 | Slag blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922101102.3U CN211036058U (en) | 2019-11-28 | 2019-11-28 | Slag blowing device |
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| Publication Number | Publication Date |
|---|---|
| CN211036058U true CN211036058U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922101102.3U Active CN211036058U (en) | 2019-11-28 | 2019-11-28 | Slag blowing device |
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| CN (1) | CN211036058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318199A (en) * | 2021-12-24 | 2022-04-12 | 鄂州鑫力华电力器材有限公司 | Zinc-plating processing is with zinc-plating pond dross processing apparatus |
| CN115418593A (en) * | 2022-08-12 | 2022-12-02 | 唐山钢铁集团高强汽车板有限公司 | Equipment and method for solving problem of plating leakage on surface of strip steel of aluminum plating production line |
-
2019
- 2019-11-28 CN CN201922101102.3U patent/CN211036058U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114318199A (en) * | 2021-12-24 | 2022-04-12 | 鄂州鑫力华电力器材有限公司 | Zinc-plating processing is with zinc-plating pond dross processing apparatus |
| CN114318199B (en) * | 2021-12-24 | 2023-10-20 | 鄂州鑫力华电力器材有限公司 | Galvanized bath scum processing apparatus for galvanization processing |
| CN115418593A (en) * | 2022-08-12 | 2022-12-02 | 唐山钢铁集团高强汽车板有限公司 | Equipment and method for solving problem of plating leakage on surface of strip steel of aluminum plating production line |
| CN115418593B (en) * | 2022-08-12 | 2024-06-28 | 唐山钢铁集团高强汽车板有限公司 | Equipment and method for solving problem of missed plating of surface of strip steel in aluminum plating production line |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220421 Address after: 230000 Hefei Demonstration Park of Circular Economy in Anhui Province Patentee after: MAGANG Group HOLDING COMPANY L Address before: 231600 East Jingliu road and South Weiwu Road, Hefei Circular Economy Demonstration Park, Anhui Province Patentee before: MAGANG (HEFEI) SHEET Co.,Ltd. |