Side-blown converter fume outlet water jacket and fume outlet

Abstract

The present invention provides a smoke outlet water jacket and a smoke outlet of a side-blown furnace, including a water jacket main body. A cooling water accommodation cavity is arranged inside the water jacket main body. An inlet and an outlet are arranged on the outer side wall of the water jacket main body, and the inlet is arranged below the outlet. A T-shaped structure is arranged at the bottom of the water jacket main body, and the inside of the T-shaped structure is communicated with the bottom of the cooling water accommodation cavity. A brick layer is arranged on one side of the inner wall of the water jacket main body close to the smoke outlet, and the bottom of the brick layer is arranged at the upper end of the T-shaped structure. A toothed structure is arranged on the smoke outlet side of the water jacket main body close to the smoke outlet, and the inside of the toothed structure is communicated with the cooling water accommodation cavity. By using the present invention, it is possible to solve the problems that the current smoke outlet water jacket is directly arranged on the inner side wall of the smoke outlet, the working surface of the water jacket is directly in contact with the flue gas, and it is extremely easy to cause phenomena such as water leakage of the water jacket due to long-term erosion by high-temperature flue gas and frequent cleaning of bonded substances, resulting in potential safety hazards in production, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and more specifically, to a smoke outlet water jacket and a smoke outlet of a side-blown furnace. Background Art

[0002] A side-blown furnace is a vertical smelting furnace. Concentrates, fluxes, fuels, etc. are added into the strongly stirred melt through the top charging port. Oxygen-rich air is blown into the slag layer through the primary tuyeres on both sides to strongly stir the melt, and the added materials are quickly and evenly distributed in the melt. The mass transfer and heat transfer processes are realized between the melt and the furnace charge, and between the melt and the blown-in gas. The flue gas generated during the smelting production process is discharged through the smoke outlet, and the use state of the smoke outlet is one of the key parts to ensure the continuous production. Due to the erosion of high-temperature flue gas, especially sulfur dioxide flue gas, it is easy to be burned out and the service life is shortened. Since the side-blown furnace is continuously fed, the current smoke outlet water jacket is generally directly arranged on the inner side wall of the smoke outlet, and the working surface of the water jacket is directly in contact with the flue gas. Long-term erosion by high-temperature flue gas and frequent cleaning of adhesives are likely to cause phenomena such as water leakage, posing potential safety hazards in production. Summary of the Invention

[0003] In view of the above problems, the purpose of the present invention is to provide a smoke outlet water jacket and a smoke outlet of a side-blown furnace to solve the problems that the current smoke outlet water jacket is directly arranged on the inner side wall of the smoke outlet, the working surface of the water jacket is directly in contact with the flue gas, and long-term erosion by high-temperature flue gas and frequent cleaning of adhesives are likely to cause phenomena such as water leakage of the water jacket, posing potential safety hazards in production.

[0004] The present invention provides a smoke outlet water jacket of a side-blown furnace, including a water jacket main body. A cooling water accommodation cavity is arranged inside the water jacket main body. An inlet and an outlet are arranged on the outer side wall of the water jacket main body, and the inlet is arranged below the outlet; a T-shaped structure is arranged at the bottom of the water jacket main body, and the inside of the T-shaped structure is communicated with the bottom of the cooling water accommodation cavity; a brick layer is arranged on one side of the inner wall of the water jacket main body close to the smoke outlet, and the bottom of the brick layer is arranged at the upper end of the T-shaped structure; a toothed structure is arranged on the smoke outlet side of the water jacket main body close to the smoke outlet, and the inside of the toothed structure is communicated with the cooling water accommodation cavity; a ramming material layer is arranged outside the toothed structure, and one side of the ramming material layer is inlaid and connected with the tooth gaps of the toothed structure, and the other side is a flat surface.

[0005] In addition, a preferred solution is that the water jacket main body includes at least two water jacket main bodies with the same structure; the water jacket main bodies are all arranged on the inner side wall of the smoke outlet; an inlet and an outlet are arranged on each of the water jacket main bodies.

[0006] In addition, a preferred solution is that a water inlet pipe is provided at the water inlet; a water outlet pipe is provided at the water outlet; the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe are both provided on the outer side wall of the brick layer.

[0007] In addition, a preferred solution is that a water inlet valve is provided on the water inlet pipe; and / or, a water outlet valve is provided on the water outlet pipe.

[0008] In addition, a preferred solution is that the shape of the water jacket body is the same as the shape of the inner side wall of the smoke outlet.

[0009] In addition, a preferred solution is that an ion permeable membrane is provided at the connection between the toothed structure and the cooling water accommodating cavity; and / or, an ion permeable membrane is provided at the connection between the T-shaped structure and the cooling water accommodating cavity. In addition, a preferred solution is that a scale-proof coating is provided on the inner side wall of the water jacket body.

[0010] In addition, a preferred solution is that the scale-proof coating is a nano-ceramic coating.

[0011] In addition, a preferred solution is that the water jacket body is a copper water jacket.

[0012] The present invention provides a smoke outlet of a side-blown furnace, including a smoke outlet body, and a smoke outlet water jacket of the side-blown furnace as described above is provided on the inner side wall of the smoke outlet body.

[0013] As can be seen from the above technical solutions, for the smoke outlet water jacket and the smoke outlet of the side-blown furnace provided by the present invention, by providing a brick layer on one side of the inner wall of the water jacket body close to the smoke outlet, providing a toothed structure on the smoke outlet side of the water jacket body close to the smoke outlet, and providing a ramming material layer outside the toothed structure, the water jacket body can be protected. The brick layer plays a role in continuous production. In production practice, the smoke outlet will have varying degrees of adhesion and needs to be cleaned. The ramming material layer well protects the water jacket body and avoids damage to the water jacket body during the cleaning process, extending its service life; through the cooling water accommodating cavity provided inside the water jacket body, providing a T-shaped structure at the bottom of the water jacket body, the inside of the T-shaped structure is communicated with the bottom of the cooling water accommodating cavity, and the inside of the toothed structure is communicated with the cooling water accommodating cavity, the purpose of quickly cooling the high-temperature smoke outlet can be achieved, and the service life of the smoke outlet can be extended; at the same time, through the design of the T-shaped structure and the toothed structure, the water jacket body can be better fixed at the smoke outlet, avoiding the displacement of the water jacket body due to the rolling vibration generated during the smelting process in the furnace.

[0014] To achieve the above and related purposes, one or more aspects of the present invention include features that will be described in detail later. The following description and the accompanying drawings illustrate certain exemplary aspects of the present invention in detail. However, these aspects merely indicate some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to cover all these aspects and their equivalents. Description of the Drawings

[0015] Other objects and results of the present invention will become more apparent and easier to understand by referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention. In the drawings:

[0016] Figure 1 Schematic structural diagram of the smoke outlet water jacket of a side-blown furnace according to an embodiment of the present invention;

[0017] Figure 2 Schematic structural diagram of the water jacket body according to an embodiment of the present invention;

[0018] Figure 3 For Figure 2 Enlarged schematic structural diagram of part I of

[0019] Figure 4 Top view of the smoke outlet water jacket of a side-blown furnace according to an embodiment of the present invention.

[0020] In the drawings, 1 - water jacket body, 11 - cooling water accommodation cavity, 12 - divided water jacket body, 2 - T-shaped structure, 3 - brick layer, 4 - tooth-shaped structure, 5 - ramming material layer, 6 - water inlet pipe, 7 - water outlet pipe, 8 - ion permeable membrane, 9 - anti-scale coating.

[0021] The same reference numerals in all the drawings indicate similar or corresponding features or functions. Detailed Description of the Embodiments

[0022] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is obvious that these embodiments can also be implemented without these specific details.

[0023] In view of the problem that the current smoke outlet water jacket is directly arranged on the inner side wall of the smoke outlet, the working surface of the water jacket is directly in contact with the flue gas, and it is extremely easy to cause problems such as water leakage of the water jacket due to long-term erosion by high-temperature flue gas and frequent cleaning of adhesive substances, resulting in potential safety hazards in production, a smoke outlet water jacket and a smoke outlet of a side-blown furnace are proposed.

[0024] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0025] To illustrate the smoke outlet water jacket and the smoke outlet of a side-blown furnace provided by the present invention,Figure 1 Shows the structure of the smoke outlet water jacket of the side-blown furnace according to an embodiment of the present invention; Figure 2 Shows the structure of the water jacket body according to an embodiment of the present invention; Figure 3 Shows Figure 2 the structure of part I of Figure 4 Shows the top view structure of the smoke outlet water jacket of the side-blown furnace according to an embodiment of the present invention.

[0026] As Figures 1 to 4 Collectively shown, the smoke outlet water jacket of the side-blown furnace provided by the present invention includes a water jacket body 1. Inside the water jacket body 1, a cooling water accommodating cavity 11 is provided. On the outer side wall of the water jacket body 1, a water inlet and a water outlet are provided, and the water inlet is arranged below the water outlet; at the bottom of the water jacket body 1, a T-shaped structure 2 is provided, and the inside of the T-shaped structure 2 communicates with the bottom of the cooling water accommodating cavity 11; on one side of the inner wall of the water jacket body 1 close to the smoke outlet, a brick layer 3 is provided, and the bottom of the brick layer 3 is arranged at the upper end of the T-shaped structure 2; on the smoke outlet side of the water jacket body 1 close to the smoke outlet, a toothed structure 4 is provided, and the inside of the toothed structure 4 communicates with the cooling water accommodating cavity 11; outside the toothed structure 4, a ramming material layer 5 is provided, one side of the ramming material layer 5 is inlaid and connected with the tooth gaps of the toothed structure 4, and the other side is a flat surface.

[0027] By providing a brick layer 3 on one side of the inner wall of the water jacket body 1 close to the smoke outlet, a toothed structure 4 on the smoke outlet side of the water jacket body 1 close to the smoke outlet, and a ramming material layer 5 outside the toothed structure 4, the water jacket body 1 can be protected. The brick layer 3 plays a role in continuous production. In production practice, the smoke outlet will have varying degrees of adhesion and needs to be cleaned. The ramming material layer well protects the water jacket body 1 and avoids damage to the water jacket body 1 during the cleaning process, extending its service life; through the cooling water accommodating cavity 11 provided inside the water jacket body 1, a T-shaped structure 2 is provided at the bottom of the water jacket body 1, the inside of the T-shaped structure 2 communicates with the bottom of the cooling water accommodating cavity 11, and the inside of the toothed structure 4 communicates with the cooling water accommodating cavity 11, the purpose of quickly cooling the high-temperature smoke outlet can be achieved, and the service life of the smoke outlet can be extended; at the same time, through the design of the T-shaped structure 2 and the toothed structure 4, the water jacket body 1 can be better fixed at the smoke outlet, avoiding the displacement of the water jacket body due to the rolling vibration generated during the smelting process in the furnace.

[0028] As a preferred embodiment of the present invention, the water jacket body 1 includes at least two water distribution jacket bodies 12 with the same structure; the water distribution jacket bodies 12 are all arranged on the inner side wall of the smoke outlet; an inlet and an outlet are provided on each water distribution jacket body 12. According to the size and shape of the smoke outlet, the water jacket body 1 can be divided into multiple water distribution jacket bodies 12, and each water distribution jacket body 12 is provided with an inlet and an outlet, which can accelerate the cooling water circulation and can control the cooling work of different water distribution jacket bodies 12 as needed during actual operation.

[0029] As a preferred embodiment of the present invention, a water inlet pipe 6 is provided at the inlet; a water outlet pipe 7 is provided at the outlet; the water inlet end of the water inlet pipe 6 and the water outlet end of the water outlet pipe 7 are both arranged on the outer side wall of the brick layer 3. It is convenient to introduce and discharge cooling water into the cooling water accommodating cavity 11 through the water inlet pipe 6 and the water outlet pipe 7; arranging the water inlet end of the water inlet pipe 6 and the water outlet end of the water outlet pipe 7 on the outer side wall of the brick layer 3 is convenient for operation.

[0030] As a preferred embodiment of the present invention, a water inlet valve is provided on the water inlet pipe 6; and / or, a water outlet valve is provided on the water outlet pipe 7. It is convenient to control the cooling circulating water work through the water inlet valve and the water outlet valve.

[0031] As a preferred embodiment of the present invention, the shape of the water jacket body 1 is the same as the shape of the inner side wall of the smoke outlet. To facilitate the installation of the water jacket body 1 on the inner side wall of the smoke outlet, the overall shape of the water jacket body 1 is designed to be the same as the shape of the inner side wall of the smoke outlet. For example, for a square smoke outlet, the water jacket body 1 is installed on the four inner side walls of the square smoke outlet, and the overall shape of the water jacket body 1 is the same as the shape of the square smoke outlet; the smoke outlet can also be a circular smoke outlet. For a circular smoke outlet, the water jacket body 1 is installed on the inner side wall of the circular smoke outlet, and the overall shape of the water jacket body 1 is circular.

[0032] As a preferred embodiment of the present invention, an ion permeable membrane 8 is provided at the connection between the tooth-shaped structure 4 and the cooling water accommodating cavity 11; and / or, an ion permeable membrane 8 is provided at the connection between the T-shaped structure 2 and the cooling water accommodating cavity 11. Under heat exchange conditions, ions in the cooling water are likely to form water scale on the metal surface. Through the ion permeable membrane 8, it is possible to prevent the ions in the cooling water entering the cooling water accommodating cavity 11 from entering the inside of the tooth-shaped structure 4 and the T-shaped structure 2, thereby preventing the ions in the cooling water from forming water scale on the inner walls of the tooth-shaped structure 4 and the T-shaped structure 2.

[0033] As a preferred embodiment of the present invention, an anti-scale coating 9 is provided on the inner side wall of the water jacket body 1. The anti-scale coating 9 can prevent the cooling water from forming water scale inside the water jacket body 1.

[0034] As a preferred embodiment of the present invention, the scale-proof coating 9 is a nano-ceramic coating. The scale-proof coating 9 is preferably a nano-ceramic coating, which has good scale-proof effect, high temperature resistance and good thermal conductivity. Of course, other scale-proof coatings can also be used for substitution, such as polytetrafluoroethylene coating, etc.

[0035] As a preferred embodiment of the present invention, the water jacket body 1 is a copper water jacket. The copper water jacket has high thermal conductivity. Through the cooling effect of the copper water jacket, the high-temperature melt is cooled on the inner wall surface of the smoke outlet and falls off into the furnace, reducing the adhesion of the splashes on the smoke outlet surface.

[0036] The smoke outlet of the side-blowing furnace provided by the present invention includes a smoke outlet body, and a smoke outlet water jacket of the side-blowing furnace as described above is provided on the inner side wall of the smoke outlet body.

[0037] It can be seen from the above specific embodiments that for the smoke outlet water jacket and the smoke outlet of the side-blowing furnace provided by the present invention, by providing a brick layer on one side of the inner wall of the water jacket body close to the smoke outlet, providing a tooth-shaped structure on the smoke outlet side of the water jacket body close to the smoke outlet, and providing a ramming material layer outside the tooth-shaped structure, the water jacket body can be protected. The brick layer plays a role in continuous production. In production practice, the smoke outlet will have different degrees of adhesion and needs to be cleaned. The ramming material layer well protects the water jacket body and avoids damage to the water jacket body during the cleaning process, prolonging its service life; through the cooling water accommodating cavity provided inside the water jacket body, providing a T-shaped structure at the bottom of the water jacket body, the inside of the T-shaped structure is communicated with the bottom of the cooling water accommodating cavity, and the inside of the tooth-shaped structure is communicated with the cooling water accommodating cavity, the purpose of quickly cooling the high-temperature smoke outlet can be achieved, prolonging the service life of the smoke outlet; at the same time, through the design of the T-shaped structure and the tooth-shaped structure, the water jacket body can be better fixed at the smoke outlet, avoiding the displacement of the water jacket body due to the rolling vibration generated during the smelting process in the furnace.

[0038] As described above, the smoke outlet water jacket and the smoke outlet of the side-blowing furnace proposed according to the present invention are described by way of example with reference to the drawings. However, those skilled in the art should understand that various improvements can be made to the above-mentioned smoke outlet water jacket and the smoke outlet of the side-blowing furnace proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the appended claims.

Claims

1. A smoke outlet water jacket for a side-blown furnace, comprising a water jacket main body, characterized in that, a cooling water accommodating cavity is arranged inside the water jacket main body, an inlet and an outlet are arranged on the outer side wall of the water jacket main body, and the inlet is arranged below the outlet; and, a water inlet pipe is arranged at the inlet; a water outlet pipe is arranged at the outlet; a T-shaped structure is arranged at the bottom of the water jacket main body, and the inside of the T-shaped structure is communicated with the bottom of the cooling water accommodating cavity; a brick layer is arranged on one side of the inner wall of the water jacket main body close to the smoke outlet, and the bottom of the brick layer is arranged at the upper end of the T-shaped structure; the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe are both arranged on the outer side wall of the brick layer; a toothed structure is arranged on the smoke outlet side of the water jacket main body close to the smoke outlet, and the inside of the toothed structure is communicated with the cooling water accommodating cavity; an ion permeable membrane is arranged at the connection between the toothed structure and the cooling water accommodating cavity; and / or, an ion permeable membrane is arranged at the connection between the T-shaped structure and the cooling water accommodating cavity; a ramming material layer is arranged outside the toothed structure, one side of the ramming material layer is inlaid and connected with the tooth gaps of the toothed structure, and the other side is a flat surface.

2. The smoke outlet water jacket for a side-blown furnace according to claim 1, characterized in that, the water jacket main body comprises at least two water sub-jacket main bodies with the same structure; the water sub-jacket main bodies are all arranged on the inner side wall of the smoke outlet; an inlet and an outlet are arranged on each of the water sub-jacket main bodies.

3. The smoke outlet water jacket for a side-blown furnace according to claim 1, characterized in that, a water inlet valve is arranged on the water inlet pipe; and / or, a water outlet valve is arranged on the water outlet pipe.

4. The smoke outlet water jacket for a side-blown furnace according to claim 1, characterized in that, the shape of the water jacket main body is the same as the shape of the inner side wall of the smoke outlet.

5. The smoke outlet water jacket for a side-blown furnace according to claim 1, characterized in that, a scale-proof coating is arranged on the inner side wall of the water jacket main body.

6. The smoke outlet water jacket for a side-blown furnace according to claim 5, characterized in that, the scale-proof coating is a nano-ceramic coating.

7. The smoke outlet water jacket for a side-blown furnace according to claim 1, characterized in that, the water jacket main body is a copper water jacket.

8. The smoke outlet of a side-blown furnace includes a smoke outlet body, characterized in that, The smoke outlet water jacket for a side-blown furnace according to any one of claims 1-7 is arranged on the inner side wall of the smoke outlet body.

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