Smelting furnace and upper wall structure thereof

Abstract

The utility model discloses a smelting furnace and an upper wall structure thereof. The upper wall body structure comprises an upper wall prefabricated assembly, a heat preservation layer, a fixing piece, a metal reinforcing frame and a metal shell layer. The upper wall prefabricated assembly comprises an upper wall prefabricated piece and an upper wall reinforcing piece. Side edge grooves are formed in the two sides of the upper wall prefabricated part, end edge grooves are formed in the bottom, and a fixing part is arranged at the top of the upper wall prefabricated part; the two adjacent upper wall prefabricated parts are horizontally arranged side by side, and the two adjacent upper wall prefabricated parts are connected through the upper wall reinforcing part; two ends of the fixing piece are respectively connected with the metal shell layer and the fixing part; the two ends of the metal reinforcing frame are connected with the metal shell layer and the upper wall reinforcing piece respectively. The fixing piece and the metal reinforcing frame are tightly connected with the upper wall prefabricated assembly and the metal shell layer respectively, so that the overall fixing stability of the upper wall body is remarkably enhanced; the heat insulation layer is added, so that the heat insulation performance of the smelting furnace is remarkably improved, the energy consumption is reduced, the working environment is improved, and meanwhile, the external structure is protected from being damaged by high-temperature baking.

Description

Technical Field

[0001] The utility model relates to the field of smelting furnace forming, in particular to a smelting furnace and an upper wall structure thereof. Background Art

[0002] Existing smelting furnace walls are formed by pouring, which requires long wait times and workers to build pouring channels with the furnace wall materials. This takes a considerable amount of time and is carried out by multiple workers, requiring a significant amount of labor. Furthermore, due to differences in pouring methods, construction conditions, and the wall construction environment, different workers use different methods, resulting in structural unevenness in different locations of the wall, which can lead to wall instability. Furthermore, the short pouring channels formed by the furnace wall materials result in weak connections between the walls, which also contributes to wall instability. Utility Model Content

[0003] In response to the problems raised in the background technology, the purpose of the present utility model is to propose an upper wall structure of a smelting furnace, which solves the problems that the upper wall of the existing smelting furnace needs to be cast on site, which is time-consuming, has low precision, unstable structure, and poor thermal insulation effect.

[0004] The utility model also provides a smelting furnace, which uses the upper wall structure of the smelting furnace mentioned above.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A smelting furnace upper wall structure, comprising an upper wall prefabricated assembly, an insulation layer, fixings, a metal reinforcement frame, and a metal outer shell layer, wherein the metal outer shell layer is arranged on the outer side of the insulation layer, the upper wall prefabricated assembly is distributed along the inner side of the insulation layer, and the upper wall prefabricated assembly includes an upper wall prefabricated member and an upper wall reinforcement member;

[0007] The upper wall prefabricated part is a rectangular parallelepiped prefabricated part, and vertically extending side grooves are provided on both sides of the upper wall prefabricated part. The bottom of the upper wall prefabricated part is provided with a transversely extending end groove, and the notches on both sides of the end groove are respectively connected to the notches at one end of the two side grooves. The top of the upper wall prefabricated part is provided with a fixing portion;

[0008] Two adjacent upper wall prefabricated parts are arranged horizontally side by side, and the two adjacent upper wall prefabricated parts are connected by the upper wall reinforcement member;

[0009] One end of the fixing member is connected to the metal outer shell layer, and the other end of the fixing member is connected to the fixing portion;

[0010] One end of the metal reinforcement frame is connected and fixed to the metal outer shell layer, and the other end of the metal reinforcement frame passes through the thermal insulation layer and the upper wall reinforcement piece.

[0011] Preferably, the upper wall prefabricated component includes two surfaces, two side surfaces and two end surfaces, the two surfaces are arranged relatively parallel to each other in the front and back directions, the two side surfaces are arranged relatively parallel to each other in the left and right directions and are respectively arranged between the two surfaces, and the two end surfaces are arranged relatively parallel to each other in the upper and lower directions and are respectively arranged between the two surfaces and the two side surfaces;

[0012] The two side surfaces are provided with the side grooves, the end surface of the bottom is provided with the end groove, and the end surface of the top is provided with the fixing portion.

[0013] Preferably, the end surface of the top is provided with the end side groove, and the notches on both sides of the end side groove of the end surface of the top are respectively connected with the notches at the other ends of the two side grooves.

[0014] Preferably, the number of the fixing portions is two, and the two fixing portions are symmetrically distributed on the end surface;

[0015] The fixing part includes two vertical hanging bars and one horizontal hanging bar, the vertical hanging bars are perpendicular to the end surface of the top, one end of the two vertical hanging bars is embedded in the interior of the upper wall prefabricated component, and the other ends of the two vertical hanging bars are respectively connected to the two ends of the horizontal hanging bar, the two vertical hanging bars and the horizontal hanging bar form a hanging bar opening, and the hanging bar opening is exposed outside the end surface.

[0016] Preferably, the fixing member includes a screw and a buckle;

[0017] One end of the screw is fixed, and the other end of the screw is provided with the fastening piece, which is fastened and connected with the fixing portion.

[0018] Preferably, it also includes: a thermal insulation pouring layer;

[0019] A thermal insulation casting gap is formed between the upper wall prefabricated component and the thermal insulation layer; and the thermal insulation casting layer is arranged in the thermal insulation casting gap.

[0020] Preferably, the thermal insulation layer comprises, from the outside to the inside, a thermal insulation cotton board layer and a thermal insulation brick layer.

[0021] A smelting furnace comprising a lower wall structure and the above-mentioned smelting furnace upper wall structure;

[0022] The upper wall structure is installed on the top of the lower wall structure.

[0023] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0024] The upper wall prefabricated assembly is tightly connected to the metal outer shell layer through fixings, and the metal reinforcement frame is connected to the upper wall reinforcement through the insulation layer, which significantly enhances the overall fixing stability of the upper wall. The addition of the insulation layer significantly improves the thermal insulation performance of the smelting furnace, reduces energy consumption, improves the working environment, and protects the external structure from damage caused by high-temperature baking. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of one embodiment of the upper wall structure of a smelting furnace;

[0026] Figure 2 This is a structural schematic diagram of one embodiment of the upper wall structure of a smelting furnace;

[0027] Figure 3 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0028] Figure 4 A schematic structural diagram of one embodiment of a prefabricated upper wall member;

[0029] Figure 5 It is a structural schematic diagram of one embodiment of a prefabricated wall assembly.

[0030] Among them: upper wall prefabricated assembly 1, upper wall prefabricated part 11, surface 111, side 112, side groove 1121, end face 113, end groove 1131, fixing part 1132, vertical hanging rod 11321, hanging rod opening 11320, horizontal hanging rod 11322, upper wall reinforcement part 12, insulation layer 2, insulation wool board layer 21, insulation brick layer 22, fixing part 3, screw 31, buckle 32, metal reinforcement frame 4, metal outer shell layer 5, insulation pouring layer 6 and insulation pouring gap 60. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0033] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features being referred to. Thus, a feature identified as "first," "second," and "third" may explicitly or implicitly include one or more of the features.

[0034] It should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0035] The following is combined with Figures 1 to 5 The technical solution of the utility model is further illustrated through specific implementation methods.

[0036] A smelting furnace upper wall structure, comprising an upper wall prefabricated assembly 1, an insulation layer 2, a fixing member 3, a metal reinforcement frame 4, and a metal outer shell layer 5. The metal outer shell layer 5 is provided on the outer side of the insulation layer 2. The upper wall prefabricated assembly 1 is distributed along the inner side of the insulation layer 2. The upper wall prefabricated assembly 1 includes an upper wall prefabricated member 11 and an upper wall reinforcement member 12.

[0037] The upper wall prefabricated part 11 is a rectangular parallelepiped prefabricated part. Vertically extending side grooves 1121 are provided on both sides of the upper wall prefabricated part 11. A transversely extending end groove 1131 is provided on the bottom of the upper wall prefabricated part 11. The notches on both sides of the end groove 1131 are respectively connected to the notches at one end of the two side grooves 1121. A fixing portion 1132 is provided on the top of the upper wall prefabricated part 11.

[0038] Two adjacent upper wall prefabricated members 11 are arranged horizontally side by side, and the two adjacent upper wall prefabricated members 11 are connected by the upper wall reinforcement member 12;

[0039] One end of the fixing member 3 is connected to the metal outer shell layer 5 , and the other end of the fixing member 3 is connected to the fixing portion 1132 ;

[0040] One end of the metal reinforcement frame 4 is connected and fixed to the metal outer shell layer 5 , and the other end of the metal reinforcement frame 4 passes through the thermal insulation layer 2 and passes through the upper wall reinforcement member 12 .

[0041] refer to Figures 1 to 3As shown, the present solution provides an upper wall structure of a smelting furnace, which is respectively connected to the outermost metal shell layer 5 and the fixing portion 1132 at the top of the upper wall prefabricated component 11 by fixing parts 3, and is connected to the upper wall reinforcement member 12 by a horizontally extending metal reinforcement frame 4 passing through the insulation layer 2, thereby improving the fixing stability and thermal insulation effect of the upper wall prefabricated assembly 1. The prefabricated upper wall prefabricated component 11 also shortens the forming time and transportation time of the upper wall, thereby solving the problems of long forming time and inconvenient lifting of the existing smelting furnace wall.

[0042] Specifically, the metal shell layer 5 serves as the outer surface of the upper wall structure of the smelting furnace, the insulation layer 2 is located on the inner surface of the metal shell layer 5, and the upper wall prefabricated assemblies 1 are distributed along the inner surface of the insulation layer 2 to form the inner wall. The metal shell layer 5 ensures the mechanical strength of the insulation layer 2 and provides basic rigidity for the upper wall structure of the smelting furnace. The insulation layer 2 provides a critical barrier between the high-temperature environment inside the smelting furnace and the external environment. The outer surface of the insulation layer 2 is placed in close contact with the metal shell layer 5, and the inner surface of the insulation layer 2 is directly connected to the upper wall prefabricated assembly 1 or indirectly connected through other connecting structures or castables. In high-temperature environments, without effective insulation measures, the external structure of the smelting furnace (such as the metal shell layer 5) may be deformed and damaged due to prolonged high-temperature baking, even affecting the safety of the entire structure. The insulation layer 2 not only reduces heat loss but also lowers the temperature of the environment surrounding the smelting furnace, providing a more comfortable working environment for operators and reducing safety hazards and health risks caused by high temperatures. The presence of the insulation layer 2 mitigates the direct impact of high temperatures on the external structure, extending the service life of the smelting furnace. One end of the fixing member 3 is welded to the metal outer shell 5, and the other end of the fixing member 3 is installed and connected to the fixing portion 1132, thereby stably connecting the upper wall prefabricated member 11 to the metal outer shell 5 and the insulation layer 2. One end of the metal reinforcement frame 4 is welded to the metal outer shell 5, and the metal reinforcement frame passes horizontally through the insulation layer 2 and extends to and connects to the upper wall reinforcement member 12. In this way, the metal reinforcement frame 4 can strengthen the fixing stability of the upper wall reinforcement member 12, providing support for the upper wall reinforcement member 12, and preventing the upper wall reinforcement member 12 from easily falling off the metal reinforcement frame 4.

[0043] In this solution, the upper wall prefabricated part 11 is prepared from a mold and brought to the construction site for assembly and installation. When the upper wall prefabricated part 11 needs to be installed on a certain substrate, such as a brick body, a ground, or an existing wall, the lifting rope is passed through the side groove 1121 on one side of the upper wall prefabricated part 11 to the end groove 1131 at the bottom, and then pulled up from the side groove 1121 on the other side, so that the two ends of the lifting rope are limited to the lifting groove of the upper wall prefabricated part 11. The lifting rope is then connected to the two ends of the lifting rope through the lifting device of the crane, thereby lifting the entire upper wall prefabricated part 11; because the lifting rope is limited to the lifting groove, the lifting groove has a limiting effect on the lifting rope, so that the lifting rope is not easy to separate from the upper wall prefabricated part 11 during the lifting process. When the upper wall prefabricated component 11 reaches the target position on the substrate and its bottom is stably placed on the substrate, the hoisting rope can be released. Since the bottom of the upper wall prefabricated component 11 is provided with an end groove 1131, after the hoisting rope is released, it can freely pass through the end groove 1131 on both sides and detach from the upper wall prefabricated component 11. Then, the fixing component 3 is arranged horizontally, with one end fixedly connected to the metal shell layer 5 and the other end installed and connected to the fixing portion 1132 of the upper wall prefabricated component, to ensure the relative position and relative stability of the upper wall prefabricated component 11 and the metal shell layer 5. After the upper wall prefabricated parts 11 are installed according to the design plan, the upper wall reinforcement parts 12 are applied or installed between the upper wall prefabricated parts 11. The upper wall reinforcement parts 12 can be connected to the upper wall prefabricated parts 11 and the base material, and can also be connected to another wall at an adjacent position, or can be connected to another upper wall prefabricated part 11 at an adjacent position; the connection method can be glue fixation, welding, groove clamping, clamp fixation, etc.; the upper wall reinforcement parts 12 can be fasteners such as screws, or blocks clamped to the surface of the upper wall prefabricated parts 11, or metal structures for welding; at the same time, the upper wall reinforcement parts 12 are connected to the horizontally extending metal reinforcement frame 4, which further enhances the stability of the upper wall prefabricated assembly 1.

[0044] For further illustration, the upper wall prefabricated parts 11 are arranged horizontally side by side. Two adjacent upper wall prefabricated parts 11 are connected by an upper wall reinforcement member 12, and the upper wall reinforcement member 12 can connect adjacent upper wall prefabricated parts 11 into one body. Especially when the castable is used as the upper wall reinforcement member 12, a pouring channel 101 is formed between two adjacent upper wall prefabricated parts 11, and after the castable is filled in the pouring channel and solidifies, it forms the upper wall reinforcement member 12, so that the horizontal combination of multiple upper wall prefabricated parts 11 is integrated. Specifically, when two upper wall prefabricated parts 11 are arranged adjacent to each other, the adjacent side grooves 1121 of the two upper wall prefabricated parts 11 constitute the pouring channel; when there is a spacing between two upper wall prefabricated parts 11, wooden boards are respectively arranged in the front and back directions of the spacing, and the two wooden boards and the adjacent sides of the two upper wall prefabricated parts 11 enclose to form a pouring channel 101. Further, since the bottom of the upper wall prefabricated part 11 is provided with an end edge groove 1131 whose two end slots are communicated with the side groove 1121, when the castable flows through the side groove 1121 from the pouring channel 101, it will flow into the bottom end edge groove 1131 from the communicated slots. The upper wall reinforcement member 12 formed by the castable is in an "丄" shape, so the upper wall reinforcement member 12 can further improve the structural strength of the upper wall of the furnace.

[0045] Further, the upper wall prefabricated part 11 includes two surfaces 111, two side surfaces 112 and two end surfaces 113. The two surfaces 111 are arranged parallel to each other front and back. The two side surfaces 112 are arranged parallel to each other left and right and are respectively arranged between the two surfaces 111. The two end surfaces 113 are arranged parallel to each other up and down and are respectively arranged between the two surfaces 111 and the two side surfaces 112.

[0046] The two side surfaces 112 are provided with the side grooves 1121, the bottom end surface 113 is provided with the end edge groove 1131, and the top end surface 113 is provided with the fixing part 1132.

[0047] The two surfaces 111, two side surfaces 112 and two end surfaces 113 of the upper wall prefabricated part 11 are arranged parallel to each other in a specific way to form a cuboid structure. This structural design helps to improve the stability of the upper wall prefabricated part 11. The arrangement of the side grooves 1121 and end edge grooves 1131 enables the upper wall prefabricated part 11 to be better connected and fixed during installation, increasing the firmness of the overall structure. The fixing part 1132 on the top end surface 113 provides additional fixing points, further enhancing the stability and connectivity of the upper wall prefabricated part 11.

[0048] Furthermore, the top end surface 113 is provided with the end edge groove 1131, and the slots on both sides of the end edge groove 1131 on the top end surface 113 are respectively communicated with the slots at the other ends of the two side grooves 1121.

[0049] By also providing end grooves 1131 on the top end surface 113 of the upper wall prefabricated component 11, which communicate with the side grooves 1121 on either side, a complete casting channel is formed that surrounds the outer side of the upper wall prefabricated component 11. When castable material is used as an embodiment of the upper wall reinforcement member 12 for reinforcement, the castable material can smoothly fill the entire channel, forming a continuous, seamless reinforcement layer. This continuous upper wall reinforcement member 12 can significantly enhance the structural integrity of the upper wall prefabricated component 11, making it more durable.

[0050] In a high-temperature smelting furnace, the furnace wall is subject to significant thermal stress. By using castable material as the upper wall reinforcement 12 to completely fill the outer surface of the upper wall prefabricated member 11, a tight bond is formed between the upper wall prefabricated member 11 and the upper wall reinforcement 12, effectively resisting the effects of thermal stress. This bond reduces deformation or cracking of the upper wall structure caused by thermal stress, thereby increasing its service life and safety.

[0051] Furthermore, the number of the fixing portions 1132 is two, and the two fixing portions 1132 are symmetrically distributed on the end surface 113;

[0052] The fixing part 1132 includes two vertical hanging bars 11321 and one horizontal hanging bar 11322, the vertical hanging bars 11321 are perpendicular to the end face 113 at the top, one end of the two vertical hanging bars 11321 is embedded in the interior of the upper wall prefabricated component 11, and the other ends of the two vertical hanging bars 11321 are respectively connected to the two ends of the horizontal hanging bar 11322, the two vertical hanging bars 11321 and the horizontal hanging bar 11322 form a hanging bar opening 11320, and the hanging bar opening 11320 is exposed outside the end face 113.

[0053] By configuring the fixing portion 1132 to be composed of a vertical hanging rib 11321 and a horizontal hanging rib 11322, and forming a hanging rib opening 11320 exposed outside the top end surface 113, the fixing portion 1132 not only facilitates connection with the fixing member 3 but also serves as a stable lifting structure. During the process of lifting the wall prefabricated component 11, the lifting structure can be formed by passing the lifting rope through the lifting groove or through the hanging rib opening 11320. Lifting through the hanging rib opening 11320 provides additional support and stability during the lifting process, preventing the wall prefabricated component 11 from tilting, shaking, or falling off during the lifting process, thereby improving the safety and efficiency of the lifting.

[0054] There are two fixing portions 1132. On the one hand, by providing two symmetrically distributed fixing portions 1132 on the top end surface 113, the balance and stability of the upper wall prefabricated component 11 can be improved when it is pre-assembled with the metal shell layer 5 through the fixing member 3, preventing the upper wall prefabricated component 11 from tilting or deforming due to uneven force, thereby ensuring the accuracy and reliability of the installation. On the other hand, when the fixing portions 1132 serve as a lifting structure, the crane simultaneously hangs the two fixing portions 1132 when lifting the upper wall prefabricated component 11, making the upper wall prefabricated component 11 more stable during the lifting and transfer process and less likely to shake, thereby more accurately placing the upper wall prefabricated component 11 on the designated substrate.

[0055] Furthermore, the fixing member 3 includes a screw 31 and a buckle 32;

[0056] One end of the screw rod 31 is fixed, and the other end of the screw rod 31 is provided with the fastening member 32 , and the fastening member 32 is fastened and connected with the fixing portion 1132 .

[0057] The combination of screw 31 and fastener 32 enables quick installation and removal of fixture 3. One end of screw 31 is welded to the outermost metal shell 5 of the smelting furnace, while the other end is provided with fastener 32, which snaps into place with fixture 1132. This connection method eliminates the need for complex tools or operations, significantly improving installation efficiency.

[0058] Furthermore, it also includes: a thermal insulation casting layer 6;

[0059] A thermal insulation casting gap 60 is formed between the upper wall prefabricated component 11 and the thermal insulation layer 2 ; the thermal insulation casting layer 6 is disposed in the thermal insulation casting gap 60 .

[0060] The main material of the thermal insulation casting layer 6 is thermal insulation casting material. When the upper wall prefabricated assembly 1 is distributed along the inner side of the thermal insulation layer 2, an thermal insulation casting gap 60 will be reserved between the upper wall prefabricated component 11 and the thermal insulation layer 2; when the upper wall prefabricated component 11 is hoisted, multiple upper wall prefabricated components 11 are connected together through the upper wall reinforcement, and then the thermal insulation casting material is poured into the thermal insulation casting gap 60 to form the thermal insulation casting layer 6; the thermal insulation casting layer 6 has a thermal insulation effect. It is arranged between the upper wall prefabricated component 11 and the thermal insulation layer 2, which can improve the thermal insulation degree between the upper wall prefabricated component 11 and the thermal insulation layer 2, and improve the thermal insulation effect of the upper wall structure of the smelting furnace; after the thermal insulation casting layer 6 is completely solidified, it can also connect the thermal insulation layer 2 and the upper wall reinforcement together, thereby strengthening the connection tightness between the thermal insulation layer 2 and the upper wall reinforcement.

[0061] Furthermore, the thermal insulation layer 2 includes, from the outside to the inside, a thermal insulation cotton board layer 21 and a thermal insulation brick layer 22 .

[0062] The insulation wool board layer 21 is mainly made of high-efficiency thermal insulation material, which has the characteristics of light weight, oxidation resistance, low thermal conductivity, good flexibility, corrosion resistance, small heat capacity and sound insulation, and is very suitable as the outermost layer of the insulation layer 2. The insulation brick body layer 22 is mainly made of insulation brick structure, which has high temperature resistance.

[0063] A smelting furnace, comprising a lower wall structure 9 and the above-mentioned smelting furnace upper wall structure;

[0064] The upper wall structure is installed on the top of the lower wall structure 9.

[0065] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A smelting furnace upper wall structure, characterized by: The upper wall prefabricated assembly comprises an upper wall prefabricated component, an insulation layer, a fixing component, a metal reinforcement frame and a metal outer shell layer, wherein the metal outer shell layer is arranged on the outer side of the insulation layer, the upper wall prefabricated component is distributed along the inner side of the insulation layer, and the upper wall prefabricated assembly comprises an upper wall prefabricated component and an upper wall reinforcement component; The upper wall prefabricated part is a rectangular parallelepiped prefabricated part, and vertically extending side grooves are provided on both sides of the upper wall prefabricated part. The bottom of the upper wall prefabricated part is provided with a transversely extending end groove, and the notches on both sides of the end groove are respectively connected to the notches at one end of the two side grooves. The top of the upper wall prefabricated part is provided with a fixing portion; Two adjacent upper wall prefabricated parts are arranged horizontally side by side, and the two adjacent upper wall prefabricated parts are connected by the upper wall reinforcement member; One end of the fixing member is connected to the metal outer shell layer, and the other end of the fixing member is connected to the fixing portion; One end of the metal reinforcement frame is connected and fixed to the metal outer shell layer, and the other end of the metal reinforcement frame passes through the thermal insulation layer and the upper wall reinforcement piece.

2. The upper wall structure of a smelting furnace according to claim 1, characterized in that: The upper wall prefabricated component includes two surfaces, two side surfaces and two end surfaces. The two surfaces are relatively parallel to each other in front and back, the two side surfaces are relatively parallel to each other in left and right and are respectively arranged between the two surfaces, and the two end surfaces are relatively parallel to each other in top and bottom and are respectively arranged between the two surfaces and the two side surfaces. The two side surfaces are provided with the side grooves, the end surface of the bottom is provided with the end groove, and the end surface of the top is provided with the fixing portion.

3. The upper wall structure of a smelting furnace according to claim 2, characterized in that: The end surface of the top is provided with the end side groove, and the notches on both sides of the end side groove of the end surface of the top are respectively communicated with the notches at the other ends of the two side grooves.

4. The upper wall structure of a smelting furnace according to claim 3, characterized in that: There are two fixing parts, and the two fixing parts are symmetrically distributed on the end surface; The fixing part includes two vertical hanging bars and one horizontal hanging bar, the vertical hanging bars are perpendicular to the end surface of the top, one end of the two vertical hanging bars is embedded in the interior of the upper wall prefabricated component, and the other ends of the two vertical hanging bars are respectively connected to the two ends of the horizontal hanging bar, the two vertical hanging bars and the horizontal hanging bar form a hanging bar opening, and the hanging bar opening is exposed outside the end surface.

5. The upper wall structure of a smelting furnace according to claim 4, characterized in that: The fixing member includes a screw and a buckle; One end of the screw is fixed, and the other end of the screw is provided with the fastening piece, which is fastened and connected with the fixing portion.

6. The upper wall structure of a smelting furnace according to any one of claims 1 to 5, characterized in that: Also includes: Insulation pouring layer; A thermal insulation pouring gap is formed between the upper wall prefabricated component and the thermal insulation layer; The thermal insulation casting layer is arranged in the thermal insulation casting gap.

7. The upper wall structure of a smelting furnace according to claim 6, characterized in that: The thermal insulation layer comprises, from the outside to the inside, a thermal insulation cotton board layer and a thermal insulation brick layer.

8. A smelting furnace, characterized in that: It comprises a lower wall structure and an upper wall structure of a smelting furnace according to any one of claims 1 to 7; The upper wall structure is installed on the top of the lower wall structure.

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