Cooling wall for smelting furnace

Abstract

The utility model discloses a cooling wall for a smelting furnace, which comprises a body with a hot surface facing the inside of the smelting furnace; and the protection parts are arranged to be of a circular tube structure, the multiple protection parts are distributed on the hot face at intervals, each protection part comprises a wear-resisting layer and a supporting layer, the wear-resisting layers are connected with the inner concave faces of the supporting layers, and the outer convex faces of the supporting layers are connected with the body, so that the concave-convex surface is formed on the hot face. The protective part is arranged to be of a circular tube structure, welding of the supporting layer and the body is facilitated, the supporting layer can provide strength supporting for the wear-resisting layer, and when the supporting layer is abraded, the wear-resisting layer is gradually exposed in the smelting furnace, or when the protective part is of an arc-shaped sheet structure, the inner concave face of the wear-resisting layer faces the interior of the smelting furnace; in this way, severe abrasion of furnace charge in the furnace and continuous scouring of high-temperature airflow can be effectively resisted, and therefore the cooling wall is effectively protected, and the service life of the cooling wall is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of smelting furnaces, and in particular to a cooling wall for smelting furnaces. Background Technology

[0002] As a core cooling component in the smelting furnace production process, the cooling wall plays a crucial role. However, in actual operating environments, the side of the cooling wall facing the furnace (most cooling walls are made of copper) is often subjected to severe abrasion from the furnace charge and continuous scouring by high-temperature airflow, making it extremely susceptible to damage. Utility Model Content

[0003] The purpose of this invention is to provide a cooling wall for a smelting furnace that can effectively resist the severe wear of the furnace charge and the continuous scouring of the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending its service life.

[0004] This utility model provides a cooling wall for a smelting furnace, comprising: a body having a hot surface facing the interior of the smelting furnace; and protective components having a circular tube structure, wherein a plurality of protective components are spaced apart on the hot surface, each protective component comprising a wear-resistant layer and a support layer, wherein the wear-resistant layer is connected to the concave surface of the support layer, and the convex surface of the support layer is connected to the body, thereby forming a concave-convex surface on the hot surface.

[0005] Furthermore, a groove is formed on the hot surface, the groove is designed to extend along a first direction and penetrate the body, and the grooves are spaced apart along a second direction, and the protective member is provided at the groove; wherein, the first direction and the second direction are approximately perpendicular.

[0006] Furthermore, the protective component is configured as a circular tube structure, and the protective component is spaced apart at the groove along the first direction; wherein, the outer convex surface portion of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body.

[0007] Furthermore, the groove is configured as a dovetail groove; a steel brick or refractory brick is provided between two adjacent protective members spaced apart along the first direction, and the protrusion of the steel brick or refractory brick is embedded in the dovetail groove; and / or, the steel brick or refractory brick and the protective member are covered with a refractory material layer.

[0008] Furthermore, the protective component is configured as a circular tube structure, and the axial length of the protective component extends along the first direction and penetrates through the groove; wherein, the outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body.

[0009] Furthermore, the hot surface is provided with grooves, which are arranged at intervals along the first direction and the second direction respectively; the protective member is a circular tube structure, one end of the protective member is inserted into the groove, and the protective member is perpendicular to and protrudes from the body; wherein, two adjacent protective members distributed along the second direction are staggered.

[0010] Furthermore, the hot surface is provided with grooves, which extend along a first direction and penetrate the body, and are spaced apart along a second direction; wherein, the grooves are dovetail grooves, and the first direction and the second direction are approximately perpendicular; the protective member is a circular tube structure, which is located between two adjacent grooves, and the outer convex surface of the support layer is connected to the body; steel bricks or refractory bricks are installed in the grooves, and the protrusions of the steel bricks or refractory bricks are embedded in the dovetail grooves; and / or, the steel bricks or refractory bricks and the protective member are covered with a refractory material layer.

[0011] Furthermore, the protective component is configured as an arc-shaped sheet structure; the groove extends in a zigzag pattern along the first direction; the outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body; the inner concave surface of the wear-resistant layer faces the furnace interior, so as to realize that the protective component extends in a zigzag pattern along the first direction.

[0012] Furthermore, the hot surface is provided with grooves, including a first type of groove and a second type of groove. The first type of groove and the second type of groove are respectively spaced apart along a first direction, and are also spaced apart sequentially along a second direction. A first type of assembly is provided in the first type of groove, and a second type of assembly is provided in the second type of groove. Both the first type of assembly and the second type of assembly are surrounded by multiple protective components. The protective components are arc-shaped sheet structures, and the outer surfaces of the first type of assembly and the second type of assembly are the concave surfaces of the wear-resistant layer. The first direction is approximately perpendicular to the second direction.

[0013] Furthermore, the protective component is configured as an arc-shaped sheet structure; the arc-shaped sheet structure is a partial arc structure in the circumferential direction of the circular tube structure; the groove is adapted to the protective component, the protective component is embedded in the groove, and the concave surface of the wear-resistant layer faces the inside of the smelting furnace; or, one end of the protective component extending axially is inserted into the groove, the convex surface of the support layer is connected to the body, and the concave surface of the wear-resistant layer faces upward, so as to support the material and block the gas flow.

[0014] Furthermore, the wear-resistant layer is a ceramic layer, and the support layer is a metal layer.

[0015] Furthermore, the body comprises a copper layer and a steel layer. The side of the copper layer facing the furnace is the hot side, and the steel layer is compositely connected to the hot side of the copper layer on the opposite side. One or more water channels are provided between the copper layer and the steel layer to accommodate cooling water for heat exchange with the copper layer. An inlet pipe and an outlet pipe are provided on the side of the steel layer away from the copper layer, and the inlet pipe and the outlet pipe are respectively connected to the water channels.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0017] In this embodiment of the invention, the protective component is designed as a circular tube structure. This not only facilitates the welding of the support layer to the main body, but also provides strength support for the wear-resistant layer, reducing the risk of deformation, cracking after heating, and loosening and falling off of the wear-resistant layer. Furthermore, when the support layer is worn down, the wear-resistant layer is gradually exposed inside the smelting furnace. Alternatively, when the protective component is an arc-shaped sheet structure, the concave surface of the wear-resistant layer faces the inside of the smelting furnace. This effectively resists the severe wear of the furnace charge and the continuous scouring of the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending its service life. Especially when the smelting furnace is used to smelt non-ferrous metals, the cooling wall is applied in a water jacket and can be horizontally suspended, i.e., with the hot surface of the main body facing down. This also prevents melting loss caused by slag splashing and wear of the hot surface by flue gas. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the first embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the second embodiment of the present invention;

[0020] Figure 3 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the third embodiment of the present utility model;

[0021] Figure 4 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the fourth embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the fifth embodiment of the present invention;

[0023] Figure 6 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the sixth embodiment of the present utility model;

[0024] Figure 7This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the seventh embodiment of the present invention;

[0025] Figure 8 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the eighth embodiment of the present invention.

[0026] Figure 9 This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the ninth embodiment of the present invention;

[0027] Figure 10 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the tenth embodiment of the present utility model;

[0028] Figure 11 This is a schematic diagram of the body structure of a cooling wall for a smelting furnace according to the eleventh embodiment of the present invention.

[0029] Figure 12 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the twelfth embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the thirteenth embodiment of the present invention;

[0031] Figure 14 This is a three-dimensional structural schematic diagram of a cooling wall for a smelting furnace according to the fourteenth embodiment of the present invention.

[0032] Figure 15 This is a schematic diagram of the structure of a cooling wall for a smelting furnace according to the fifteenth embodiment of the present invention;

[0033] Figure label:

[0034] 11. Body; 12. Protective component; 13. Groove; 14. First type of assembly; 15. Second type of assembly; 16. Inlet pipe; 17. Outlet pipe; 18. First type of groove; 19. Second type of groove;

[0035] 111. Steel layer; 112. Copper layer; 113. Wear-resistant steel layer; 121. Wear-resistant layer; 122. Support layer. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the present utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model. In this document, terms such as first, second, and third are used only to distinguish one feature from another and are not intended to claim or imply any order or association between these features.

[0037] Cooling walls, as a core cooling component in the smelting furnace production process, play a crucial role. However, in actual operating environments, the hot surfaces of cooling walls are often subjected to severe abrasion from the furnace charge and continuous scouring by high-temperature airflow, making them highly susceptible to damage. Previously, to address this issue, the industry commonly adopted protective strategies such as welding high-temperature resistant metal layers to the hot surfaces, installing steel bricks, and filling with refractory materials. Unfortunately, these solutions all have their limitations: welding high-temperature resistant metal layers, while effective, significantly increases costs; installing steel bricks is limited by the clamping force of the hot surfaces of the cooling walls (most cooling walls are copper-based), as copper is prone to deformation at high temperatures, leading to the steel bricks easily loosening and falling off; as for the refractory materials used for filling, due to their numerous internal pores, they are easily fractured when heated, often resulting in unsatisfactory protective effects.

[0038] Therefore, this utility model embodiment provides a cooling wall for a smelting furnace, such as... Figures 1-15 As shown, it includes: a body 11 and a protective member 12. The body 11 has a hot surface facing the inside of the smelting furnace; the protective member 12 is a circular tube structure, and multiple protective members are spaced apart on the hot surface. The protective member 12 includes a wear-resistant layer 121 and a support layer 122. The wear-resistant layer 121 is connected to the concave surface of the support layer 122, and the convex surface of the support layer 122 is connected to the body 11 to form a concave-convex surface on the hot surface.

[0039] Specifically, the body 11 can be a pure copper layer or a copper-steel composite. When the body 11 is a copper-steel composite, the side of the copper layer facing the furnace is designated as the hot side, and the opposite side is designated as the cold side. The cold side is connected to the steel layer, which supports the copper layer to reduce thermal deformation of the copper layer and reduce production costs. Alternatively, when the body 11 is a copper-steel composite, a wear-resistant steel layer can be laminated on the hot side of the copper layer. This not only improves the wear resistance of the cooling wall but also facilitates welding with the protective component 12. The wear-resistant layer 121 of the protective component 12 can be made of materials such as silicon nitride or silicon carbide, and the support layer 122 can be made of metal. The wear-resistant layer 121 and the concave surface of the support layer 122 are compositely connected. Multiple protective components are distributed at intervals on the hot surface to achieve full distribution on the hot surface. The protective component 12 is designed as a circular tube structure and can include a support layer 122 and a wear-resistant layer 121 arranged coaxially from the outside to the inside, which can be an integrally formed structure. When the cooling wall is first put into use, the support layer 122 is subjected to severe wear from the furnace charge and continuous scouring from the high-temperature airflow, and is prone to wear. At this time, the wear-resistant layer 121 can be gradually exposed to the furnace, which can effectively resist the severe wear from the furnace charge and the continuous scouring from the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending the service life of the cooling wall. Alternatively, when the protective component 12 is an arc-shaped sheet structure, that is, when the protective component 12 is a partially arc-shaped structure in the circumferential direction of a circular tube, it can be cut and manufactured according to 1 / 2, 1 / 3, or 1 / 4 of the circumference of the circular tube. This not only facilitates the welding of the support layer 122 to the body 11, but also provides strength support for the wear-resistant layer 121, reducing the risk of deformation, cracking after heating, and loosening and falling off of the wear-resistant layer 121. Moreover, the concave surface of the wear-resistant layer 121 faces the inside of the smelting furnace, which can effectively resist the severe wear of the furnace charge and the continuous scouring of the high-temperature gas flow, thereby achieving effective protection of the cooling wall and extending the service life of the cooling wall. When the smelting furnace is smelting non-ferrous metals, the cooling wall is used in a water jacket and can be horizontally suspended, that is, with the hot surface of the body facing down, which can also prevent melting loss caused by slag splashing and wear of the hot surface by flue gas.

[0040] In some embodiments, the wear-resistant layer 121 is a ceramic layer, and the support layer 122 is a metal layer. The protective component 12 is an arc-shaped structure, such as an arc-shaped sheet structure, which can be made from a portion of the circumference of a pipe. For example, the protective component 12 can be obtained by cutting 1 / 2, 1 / 3, or 1 / 4 of the circumference of the pipe. The pipe is, for example, a ceramic-metal composite pipe. The ceramic pipe material may include one or more of alumina, silicon nitride, silicon carbide, silicon nitride-bonded silicon carbide, zirconium corundum, chromium corundum, and aluminum titanate-corundum. The metal pipe material is, for example, a steel pipe or a stainless steel pipe. Therefore, the manufacturing process of the protective component 12 is mature, the production cost is low, and it is also conducive to mass production.

[0041] In some embodiments, grooves 13 are formed on the hot surface. The grooves 13 extend along a first direction and penetrate the body 11, and are spaced apart along a second direction. The protective member is disposed at the groove; wherein the first direction and the second direction are approximately perpendicular. The hot surface has spaced grooves 13, the first direction being, for example, transverse, and the second direction being, for example, longitudinal. The protective member 12 is disposed at the groove 13. The groove 13 can be used for the installation and positioning of the protective member 12. The protective member 12 is disposed at the groove 13, protruding from or recessed into the hot surface, which increases the contact area and facilitates the combination and arrangement of the protective member 12 on the hot surface of the body 11 in different forms.

[0042] In some embodiments, reference is made to Figures 1-2 As shown, the protective component 12 is configured as a circular tube structure, and the axial length of the protective component 12 extends along the first direction and passes through the groove 13; wherein, the outer convex surface of the support layer 122 is embedded in the groove, and the outer convex surface of the support layer is connected to the body. Specifically, multiple protective components 12 are arranged evenly and sequentially in the groove 13 along the transverse direction, and the multiple protective components 12 can also be arranged evenly and sequentially along the longitudinal direction to achieve full coverage of the hot surface; the outer convex surface of the support layer 122 is embedded in the groove 13, and the outer convex surface of the support layer 122 can be firmly welded to the body 11, so that the protective component 12 protrudes from the hot surface. The protective component 12 is designed as a circular tube structure, which not only facilitates the welding of the support layer 122 to the body 11, but also provides strength support for the wear-resistant layer 121. When the cooling wall is first put into use, the support layer 122 is subjected to severe wear from the furnace charge and continuous scouring from the high-temperature airflow, and is prone to wear. At this time, the wear-resistant layer 121 can be gradually exposed inside the smelting furnace, which can effectively resist the severe wear from the furnace charge and continuous scouring from the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending the service life of the cooling wall.

[0043] In some embodiments, the groove 13 is a dovetail groove; a steel brick or refractory brick is provided between two adjacent protective members 12 spaced apart along a first direction, and the protrusion of the steel brick or refractory brick is embedded in the dovetail groove; and / or, the steel brick or refractory brick and the protective member 12 are covered with a refractory material layer. Specifically, for example, the protrusion of the steel brick or refractory brick is adapted to the dovetail groove, and the protrusion of the steel brick or refractory brick is inserted into the dovetail groove to increase the steel brick or refractory brick between two adjacent protective members 12, thereby strengthening the protection of the cooling wall through the combination with the steel brick or refractory brick. Alternatively, covering the steel brick or refractory brick and the firmly welded protective member 12 with a refractory material layer can strengthen the protection of the cooling wall.

[0044] In some embodiments, reference is made to Figure 3As shown, the protective component is configured as a circular tube structure, and the axial length of the protective component extends along the first direction and passes through the groove; wherein, the outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body. Specifically, the axial length of each protective component 12 covers the transverse groove 13, and multiple protective components 12 can be evenly spaced along the longitudinal direction to achieve full coverage of the hot surface; the outer convex part of the support layer 122 is embedded in the groove 13, and the outer convex part of the support layer 122 can be firmly welded to the body 11, so that the protective component 12 protrudes from the hot surface. The protective component 12 is designed as a circular tube structure, which not only facilitates the welding of the support layer 122 to the body 11, but also provides strength support for the wear-resistant layer 121. When the cooling wall is first put into use, the support layer 122 is subjected to severe wear from the furnace charge and continuous scouring from the high-temperature airflow, and is prone to wear. At this time, the wear-resistant layer 121 can be gradually exposed to the furnace, which can effectively resist the severe wear from the furnace charge and continuous scouring from the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending the service life of the cooling wall.

[0045] In some embodiments, reference is made to Figures 4-5 As shown, the grooves are arranged to be distributed at intervals along the first direction and the second direction respectively; the protective member is a circular tube structure, one end of the protective member is inserted into the groove, and the protective member is perpendicular to and protrudes from the body; wherein, two adjacent protective members distributed along the second direction are staggered. Specifically, multiple protective components 12 can be evenly spaced along the transverse and longitudinal directions, and two adjacent protective components 12 can be staggered to achieve full coverage of the hot surface. One end of the protective component 12 is inserted into the groove 13, and the outer circumferential surface of the support layer 122 can be firmly welded to the body 11. In this way, the protective component 12 is perpendicular to the body and protrudes from the hot surface. The protective component 12 is designed as a circular tube structure, which not only facilitates the welding of the support layer 122 to the body 11, but also provides strength support for the wear-resistant layer 121. When the cooling wall is first put into use, the support layer 122 is subjected to severe wear from the furnace charge and continuous scouring from the high-temperature airflow, and is prone to wear. At this time, the wear-resistant layer 121 can be gradually exposed to the furnace, which can effectively resist the severe wear from the furnace charge and continuous scouring from the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending the service life of the cooling wall.

[0046] In some embodiments, reference is made to Figures 14-15As shown, a groove 13 is provided on the hot surface. The groove 13 extends along a first direction and penetrates the body 11, and the grooves 13 are spaced apart along a second direction. The groove is a dovetail groove, and the first direction is approximately perpendicular to the second direction. The protective member is a circular tube structure. The protective member 12 is located between two adjacent grooves. The outer convex surface of the support layer 122 is connected to the body. A steel brick or refractory brick is installed in the groove, and the protrusion of the steel brick or refractory brick is embedded in the dovetail groove. And / or, the steel brick or refractory brick and the protective member are covered with a refractory material layer. Specifically, the protective component 12 may be designed as a circular tube structure, extending laterally and firmly welded to the body. Steel bricks or refractory bricks (not shown in the figure) can be installed between adjacent protective components 12 arranged longitudinally at intervals. For example, the protrusions of the steel bricks or refractory bricks are adapted to dovetail grooves, inserting the protrusions into the dovetail grooves to add steel bricks or refractory bricks between adjacent protective components 12. This flexible combination with steel bricks or refractory bricks strengthens the protection of the cooling wall. Alternatively, covering the steel bricks or refractory bricks and the firmly welded protective components 12 with a refractory material layer can further enhance the protection of the cooling wall.

[0047] In some embodiments, reference is made to Figures 6-7 As shown, the protective component is an arc-shaped sheet structure; the groove 13 extends in a zigzag pattern along the first direction; the outer convex surface of the support layer 122 is embedded in the groove 13, and the outer convex surface of the support layer 122 is connected to the body 11; the inner concave surface of the wear-resistant layer 121 faces the furnace, so that the protective component 12 is continuous and extends in a zigzag pattern along the first direction. Specifically, the groove 13 can be a small positioning groove, the outer convex surface of the support layer 122 contacts the groove 13, the support layer 122 is welded to the body 11, and the inner concave surface of the wear-resistant layer 121 faces the furnace. Multiple protective components 12 can be welded together to form a W-shaped or V-shaped whole, and then the protective component 12 is welded to the body 11, so that it is arranged in a W-shaped or V-shaped pattern in the transverse direction on the body 11, and the protective components 12 are arranged evenly in the longitudinal direction, so that multiple continuous and guided wear-resistant lines can be formed on the hot surface of the body 11.

[0048] In some embodiments, reference is made to Figures 8-9As shown, the protective component is designed as an arc-shaped sheet structure; the groove 13 is adapted to the protective component 12, and the protective component 12 is embedded in the groove 13, with the concave surface of the wear-resistant layer 121 facing the furnace interior. Specifically, the groove 13 is machined on the hot surface of the body 11, which can accommodate the installation space required for the protective component 12. The groove 13 and the protective component 12 can be interference-fitted, embedding the protective component 12 into the groove 13, thus achieving connection and fixation between the protective component 12 and the body 11 without welding. A certain length of the protective component 12 is fully embedded in the groove 13 laterally, with the concave surface of the wear-resistant layer 121 facing the furnace interior. Multiple protective components 12 can be evenly spaced along the longitudinal direction to achieve complete coverage of the hot surface. This forms a concave-convex surface on the hot surface of the body 11, which can effectively resist the severe wear of the furnace charge and the continuous scouring of the high-temperature airflow, thereby achieving effective protection of the cooling wall and extending its service life.

[0049] In some embodiments, reference is made to Figures 10-11 As shown, the protective component is designed as an arc-shaped sheet structure; one end of the protective component 12 extending axially is inserted into the groove 13, the outer convex surface of the support layer 122 is connected to the body 11, and the inner concave surface of the wear-resistant layer 121 faces upward, so as to support the material and block the flow of coal gas. Specifically, the protective component 12 is inserted into the groove 13 with its side parallel to the axis, the outer convex surface of the support layer 122 is firmly welded to the body 11, the inner concave surface of the wear-resistant layer 121 faces upward, a certain length of protective component 12 is arranged laterally on the width of the body 11, and multiple protective components 12 can be evenly arranged longitudinally to achieve full coverage of the hot surface. In this way, multiple layers of fins extend up and down along the hot surface, so that the protective component 12 can support the material and block the flow of coal gas.

[0050] In some embodiments, reference is made to Figures 12-13As shown, the groove 13 may include a first groove 18 and a second groove 19. The first groove 18 and the second groove 19 are respectively spaced apart along a first direction, and the first groove 18 and the second groove 19 are sequentially spaced apart along a second direction. A first assembly 14 is provided in the first groove 18, and a second assembly 15 is provided in the second groove 19. Both the first assembly 14 and the second assembly 15 are surrounded by a plurality of the protective members 12. The protective members are arc-shaped sheet structures. The outer surfaces of the first assembly 14 and the second assembly 15 are the concave surfaces of the wear-resistant layer 121. The arc-shaped sheet structure is a partial arc structure in the circumferential direction of the circular tube structure. The first direction is approximately perpendicular to the second direction. Specifically, the cross-sectional shape of the first type of groove 18 can be, for example, rectangular, and the second type of groove 19 can be, for example, triangular. Those skilled in the art will understand that the first type of groove 18 and the second type of groove 19 can also be other shapes, which will not be listed here. Multiple protective members 12 are arranged back-to-back, meaning that the outer convex surfaces of two adjacent support layers 122 can contact each other near their ends. The two adjacent support layers 122 can be welded together to form the first type of assembly 14 or the second type of assembly 15 as a single unit. The center of the first type of assembly 14 and the second type of assembly 15 is hollow, and their outer surfaces are recessed within the wear-resistant layer 121. The first type of assembly 14 can be made of, for example, four protective elements 12, and the second type of assembly 15 can be made of, for example, three protective elements 12. The outer contour dimensions of the first type of assembly 14 are adapted to the first type of groove 18. The depth of the first type of groove 18 is set to be relatively small. The first type of assembly 14 is placed in the first type of groove 18 to achieve positioning of the first type of assembly 14, so that most of the first type of assembly 14 is exposed outside the first type of groove 18. Then, the support layer 122 at the center of the first type of assembly 14 is welded firmly to the body 11. Similarly, the second type of assembly 15 can also be welded to the body 11. Depending on the actual application, assemblies made of multiple protective elements 12 can be flexibly selected. The assemblies are welded into the groove 13 of the hot surface, and different assemblies are distributed alternately in the horizontal or vertical direction, or in a cross-interval manner. This can prevent materials from all directions from abrading the hot surface of the body 11, slow down the speed of material falling, and block the flow direction of coal gas.

[0051] In some embodiments, the body 11 includes a copper layer 112 and a steel layer 111. The side of the copper layer 112 facing the furnace is the hot side, and the steel layer 111 is connected to the hot side of the copper layer 112 on the opposite side. One or more water channels are provided between the copper layer 112 and the steel layer 111 to accommodate cooling water for heat exchange with the copper layer 112. A water inlet pipe 16 and a water outlet pipe 17 are provided on the side of the steel layer 111 away from the copper layer 112, and the water inlet pipe 16 and the water outlet pipe 17 are respectively connected to the water channels. Specifically, when the body 11 is a copper-steel composite, the side of the copper layer 112 facing the furnace is designated as the hot side, and the opposite side is designated as the cold side. The cold side is composite-connected to the steel layer 111, which supports the copper layer 112 to reduce thermal deformation and lower production costs. In this embodiment, a wear-resistant steel layer 113 can be composited on the hot side of the copper layer 112. This not only improves the wear resistance of the cooling wall but also facilitates welding with the protective component 12. The wear-resistant steel layer 113 can be made of stainless steel, specifically 304, 310, 310S, 316, 316L, or other austenitic stainless steels. The wear-resistant steel layer 113 can be applied to the copper layer 112 through explosive bonding, laser cladding, or electroplating. The water inlet pipe 16 and the water outlet pipe 17 can be reserved to a certain length on the side away from the copper layer 112, so that the water inlet pipe 16 and the water outlet pipe 17 can extend to the outside of the furnace shell of the smelting furnace. By providing one or more water channels between the copper layer 112 and the steel layer 111, the cooling water flows in the water channels to realize the heat dissipation of the body 11 and cool down the body 11, which is conducive to the stability of the overall structure of the cooling wall and the stable operation of the smelting furnace.

[0052] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A cooling wall for a smelting furnace, characterized in that, include: The body has a hot surface facing the interior of the smelting furnace; The protective component is configured as a circular tube structure, and multiple protective components are spaced apart on the hot surface. The protective component includes a wear-resistant layer and a support layer. The wear-resistant layer is connected to the concave surface of the support layer, and the convex surface of the support layer is connected to the body to form a concave-convex surface on the hot surface.

2. The cooling wall according to claim 1, characterized in that, The heated surface has grooves that extend along a first direction and penetrate the body, and these grooves are spaced apart along a second direction. The protective member is located at one of the grooves. The first direction is roughly perpendicular to the second direction.

3. The cooling wall according to claim 2, characterized in that, The protective components are spaced apart at the grooves along a first direction; wherein... The outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body.

4. The cooling wall according to claim 3, characterized in that, The groove is designed as a dovetail groove; A steel brick or refractory brick is provided between two adjacent protective members spaced apart along the first direction, and the protrusion of the steel brick or refractory brick is embedded in the dovetail groove; and / or, The steel bricks or refractory bricks and the protective components are covered with a layer of refractory material.

5. The cooling wall according to claim 2, characterized in that, The protective component is a circular tube structure, and its axial length extends along a first direction and passes through the groove; wherein, The outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body.

6. The cooling wall according to claim 1, characterized in that, The hot surface is provided with grooves, which are arranged at intervals along the first direction and the second direction respectively. One end of the protective member is inserted into the groove, and the protective member is perpendicular to and protrudes from the body; wherein, The two adjacent protective elements distributed along the second direction are staggered.

7. The cooling wall according to claim 1, characterized in that, The hot surface is provided with grooves, which are designed to extend along a first direction and penetrate the body, and the grooves are spaced apart along a second direction; wherein, the grooves are designed as dovetail grooves, and the first direction and the second direction are approximately perpendicular. The protective component is disposed between two adjacent grooves, and the outer convex surface of the support layer is connected to the body. A steel brick or refractory brick is installed in the groove, and the protrusion of the steel brick or refractory brick is embedded in the dovetail groove; and / or, The steel bricks or refractory bricks and the protective components are covered with a layer of refractory material.

8. The cooling wall according to claim 1, characterized in that, The hot surface is provided with grooves, the grooves include a first type of groove and a second type of groove, the first type of groove and the second type of groove are respectively arranged to be spaced apart along a first direction, and the first type of groove and the second type of groove are arranged to be spaced apart sequentially along a second direction; The first type of groove contains the first type of assembly, and the second type of groove contains the second type of assembly. Both the first and second types of assemblies are formed by multiple protective components. The protective component is designed as an arc-shaped sheet structure, and the outer surfaces of the first and second assemblies are the concave surfaces of the wear-resistant layer; the arc-shaped sheet structure is a partial arc structure in the circumferential direction of the circular tube structure. The first direction is roughly perpendicular to the second direction.

9. The cooling wall according to claim 2, characterized in that, The protective component is designed as an arc-shaped sheet structure; the arc-shaped sheet structure is a partial arc structure in the circumferential direction of the circular tube structure; The groove extends in a zigzag pattern along the first direction. The outer convex surface of the support layer is embedded in the groove, and the outer convex surface of the support layer is connected to the body. The inner concave surface of the wear-resistant layer faces the inside of the smelting furnace, so that the protective component extends continuously in a zigzag pattern along the first direction; or... The groove is adapted to the protective component, the protective component is embedded in the groove, and the concave surface of the wear-resistant layer faces the inside of the smelting furnace; or... One end of the protective component extending axially is inserted into the groove, the outer convex surface of the support layer is connected to the body, and the inner concave surface of the wear-resistant layer faces upward, so as to support the material and block the gas flow.

10. The cooling wall according to any one of claims 1-9, characterized in that, The body includes a copper layer and a steel layer. The side of the copper layer facing the furnace is the hot side, and the steel layer is compositely connected to the hot side of the copper layer on the opposite side. One or more water channels are provided between the copper layer and the steel layer. The water channels are used to allow cooling water to pass through, so as to achieve heat exchange of the copper layer. The steel layer is provided with an inlet pipe and an outlet pipe on the side opposite to the copper layer, and the inlet pipe and outlet pipe are respectively connected to the waterway.

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