A combined slag zone cooler module

Abstract

The present application discloses a combined slag zone cooler module, including a top wall and a bottom wall fixedly connected to each other, and side walls on both sides, which surround and form an inner cavity with an opening, the inner cavity is filled with heat-resistant casting material, and cooling water channels consisting of a water tank and a cover plate are respectively opened in the top wall and the bottom wall; the top wall includes a first steel layer, a first copper layer, and a second steel layer that are sequentially combined into one along the direction from the hot surface to the cold surface; the bottom wall includes a third steel layer, a second copper layer, and a fourth steel layer that are sequentially combined into one along the direction from the hot surface to the cold surface; the first steel layer includes an edge steel layer, which is extended and bent and is covered and fixed with the end section of the first copper layer. The mechanical strength of the combined slag zone cooler module proposed in the embodiment of the present application is improved, and it is easy to produce and assemble.

Description

Technical Field

[0001] The present application relates to the technical field of metallurgical furnace slag zone cooling equipment, and in particular to a combined slag zone cooler module. Background Art

[0002] HIsmelt molten pool smelting process has become the development direction of future smelting reduction ironmaking technology due to its advantages such as good adaptability to raw materials and fuels, short process and simple operation. Among them, the key functional equipment is the slag zone cooler (also known as slag zone cooling wall).

[0003] During the metal smelting process, several slag zone coolers are combined in a circular circumferential direction. The slag layer immersed in the iron bath has a temperature of up to 1300-1600℃. The dropping of materials, gas stirring, and the shedding of the upper slag skin will all have an impact and damage on it. The operating environment is harsh, so the quality requirements are relatively high.

[0004] In the prior art, most of the cooling water channels inside the slag zone cooler are connected by Monel tubes through welding technology to form a serpentine tube, and the slag zone cooler is manufactured by casting. However, due to the large number of serpentine tubes buried inside and their denseness, casting will cause the combination of the serpentine tube and the casting to be offset, the casting is difficult and the scrap rate is high. The overall quality after casting is low, the strength is poor, the casting defects cannot be eliminated, the manufacturing cost is high, and the production and assembly processes are relatively complicated. Summary of the invention

[0005] In view of the technical problems existing in the prior art, the present application proposes a combined slag zone cooler module. The combined slag zone cooler module adopts a modular assembly method, and cooling walls at different positions can be manufactured separately, and then assembled into a complete slag zone cooler, which has improved mechanical strength and is easy to produce and assemble.

[0006] An embodiment of the present application proposes a combined slag zone cooler module, including a top wall and a bottom wall fixedly connected to each other, and side walls on both sides, which surround and form an inner cavity with an opening, wherein the inner cavity is filled with heat-resistant casting material, and cooling water channels composed of a water trough and a cover plate are respectively opened in the top wall and the bottom wall; the top wall includes a first steel layer, a first copper layer, and a second steel layer that are sequentially composited into one along the direction from the hot surface to the cold surface; the bottom wall includes a third steel layer, a second copper layer, and a fourth steel layer that are sequentially composited into one along the direction from the hot surface to the cold surface; the first steel layer includes an edge steel layer, and the edge steel layer is extended and bent and is compositely fixed with the end section of the first copper layer.

[0007] Optionally, the cold surface of the top wall and / or the cold surface of the bottom wall is provided with a strength reinforcement member for enhancing the supporting strength of the top wall and the bottom wall.

[0008] Optionally, the strength reinforcement member is a rib plate, which is vertically established between the top wall and the side walls and connected to the top wall and the bottom wall respectively.

[0009] Optionally, there are multiple ribs, and the multiple ribs are arranged in sequence along the length direction of the connection line between the top wall and the side wall.

[0010] Optionally, the rib plate includes a first rib plate and a second rib plate disposed adjacent to each other, and in a cross-sectional direction perpendicular to the inner cavity, areas of the first rib plate and the second rib plate are different.

[0011] Optionally, the first ribs and the second ribs are alternately distributed in the length direction of the connecting line.

[0012] Optionally, the strength reinforcement member is a truss beam, and the truss beam is connected and fixed to the second steel layer of the top wall and / or the fourth steel layer of the bottom wall.

[0013] Optionally, the cooling water channels respectively opened in the top wall and the bottom wall are connected in series with each other within the entirety of the combined slag zone cooler module; or, the cooling water channels respectively opened in the top wall and the bottom wall are connected in series with each other inside their respective wall bodies.

[0014] Optionally, the top wall includes a first cooling water trough opened on the first copper layer, the second steel layer covers the first cooling water trough to form the cover plate and constitutes a first cooling water channel, and the cooling liquid in the first cooling water channel is introduced by a first water inlet pipe penetrating the second steel layer and led out by a first water outlet pipe.

[0015] Optionally, the bottom wall includes a second cooling water trough opened on the second copper layer, the fourth steel layer covers the second cooling water trough to form the cover plate and constitutes a second cooling water channel, and the cooling liquid in the second cooling water channel is introduced by a second water inlet pipe penetrating the fourth steel layer and led out by a second water outlet pipe.

[0016] Optionally, the first cooling water trough arranged in the top wall and the second cooling water trough arranged in the bottom wall are both arranged in two numbers in their respective wall bodies; the first cooling water trough and / or the second cooling water trough are composed of a straight cooling water trough and a curved cooling water trough connected to each other, the curved cooling water troughs of the two cooling water troughs on the same wall body are staggered, and the water inlet and outlet of the same cooling water trough are both arranged on the side close to the opening of the inner cavity.

[0017] Optionally, the water inlet of the same cooling water channel is connected to its linear cooling water trough, and the water outlet of the same cooling water channel is connected to its curved cooling water trough. After the cooling water enters the water inlet of the same cooling water channel, it first passes through the linear cooling water trough and then passes through the curved cooling water trough before reaching the water outlet.

[0018] Optionally, the first water inlet pipe and the first water outlet pipe are both arranged on a cold surface of the top wall close to the opening; the second water outlet pipe and the second water inlet pipe are arranged on a cold surface of the bottom wall close to the opening.

[0019] Optionally, the first water outlet pipe and the second water inlet pipe are connected to form a water inlet connecting pipe, and the water inlet connecting pipe is an integrally formed structure.

[0020] Optionally, the water inlet connecting pipe is a straight pipe.

[0021] Optionally, the first water outlet pipe is arranged on the wall of the top wall facing the opening, and the second water inlet pipe is arranged on the wall of the bottom wall near the junction of the top wall and the bottom wall, and the first water outlet pipe and the second water inlet pipe are connected to each other.

[0022] Optionally, the top wall further includes a plurality of first grooves, which are formed by passing through the first steel layer and the second copper layer; the bottom wall further includes a plurality of second grooves, which are formed by passing through the third steel layer and the second copper layer.

[0023] Optionally, a third cooling water channel is opened in the side wall, and the cooling liquid in the third cooling water channel is introduced and led out respectively by a third water inlet pipe and a third water outlet pipe which are arranged on the wall body of the side wall located in the inner cavity; wherein the third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series with each other in the module; or, the third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series with each other inside their respective wall bodies.

[0024] Optionally, the side wall is made of steel, and includes a top panel, a bottom panel, a side panel, an inner cover plate, and an outer cover plate. The top panel, the bottom panel, and the side panel are interconnected to form a cylindrical structure, and the inner cover plate and the outer cover plate are respectively covered at both ends of the cylindrical structure to form a box-like structure.

[0025] Optionally, the top panel of the side wall is part of the second steel layer; and the bottom panel of the side wall is part of the fourth steel layer.

[0026] Optionally, the third cooling water channel is a box-type water channel, or the third cooling water channel is a tubular cooling water channel.

[0027] Optionally, the third water inlet pipe is arranged at the bottom of the side wall and close to the opening, the third water outlet pipe is arranged at the top of the inner cover plate and close to the opening, and the third water inlet pipe and the second water outlet pipe are connected to each other; or, the third water outlet pipe and the third water inlet pipe are both arranged at the top of the inner cover plate and close to the opening, and the third water inlet pipe and the second water outlet pipe are independently arranged.

[0028] Optionally, the first water inlet pipe, the second water inlet pipe, the third water inlet pipe, the first water outlet pipe, the second water outlet pipe and the third water outlet pipe each include an inner pipe and an outer pipe sleeved on the inner pipe, and a gap is provided between the inner pipe and the outer pipe.

[0029] Optionally, the side wall includes a fourth steel layer, a third copper layer and a fifth steel layer which are sequentially composited into one along the direction from the hot surface to the cold surface, a serpentine third cooling water trough is opened on the third copper layer, the fifth steel layer covers the third cooling water trough to form the third cooling water channel, and the third water inlet pipe and the third water outlet pipe are passed through the fifth steel layer.

[0030] Optionally, the side wall is an integrally formed solid steel plate.

[0031] Optionally, limiting grooves are provided on the fourth steel layer and the second steel layer, the top enclosure plate of the side wall is fixed in the limiting groove of the second steel layer, and the bottom enclosure plate of the side wall is fixed in the limiting groove of the fourth steel layer.

[0032] The combined slag zone cooler module proposed in the embodiment of the present application includes a top wall and a bottom wall made of a copper-steel composite. When manufacturing the combined slag zone cooler module, a complete combined slag zone cooler module can be made by assembling the top wall, the side wall and the bottom wall, and the manufacturing process is simple and efficient. In addition, since the top wall and the bottom wall of the combined slag zone cooler module of the present application are made of a copper-steel composite structure, and the hot surface is a steel layer, the bearing strength of the slag zone cooler can be significantly improved to prevent the upper slag skin from falling off and causing adverse effects. Furthermore, since the first steel layer includes a edging steel layer, the hot surface of the entire combined slag zone cooler module is coated with a steel layer, so that the entire hot surface will maintain a high ability to resist adverse effects in the furnace. Therefore, the combined slag zone cooler module proposed in the present application has improved mechanical strength and is easy to produce and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Below, the preferred embodiments of the present application will be further described in detail with reference to the accompanying drawings, wherein:

[0034] Figure 1 It is a three-dimensional structural schematic diagram of a combined slag zone cooler module according to an embodiment of the present application;

[0035] Figure 2 This is a structural view of the outer side of the inner cavity of the combined slag zone cooler module of the embodiment of the present application;

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of another combined slag zone cooler module according to an embodiment of the present application;

[0037] Figure 4 This is a schematic structural diagram of a cooling water tank on the top wall of a combined slag zone cooler module according to an embodiment of the present application;

[0038] Figure 5 It is a schematic diagram of a partial component of a combined slag zone cooler module according to an embodiment of the present application;

[0039] Figure 6 is a schematic cross-sectional view of another cooling water tank on the top wall of the combined slag zone cooler module of an embodiment of the present application;

[0040] Figure 7 is a schematic cross-sectional view of another cooling water tank on the bottom wall of the combined slag zone cooler module of an embodiment of the present application;

[0041] Figure 8 It is a longitudinal cross-sectional view of a side wall of a combined slag zone cooler module of an embodiment of the present application;

[0042] Fig. 9 is a longitudinal sectional view of another side wall of the combined slag zone cooler module of an embodiment of the present application;

[0043] Fig.10 yes Figure 1 A D-direction view of the structure shown;

[0044] Fig.11 yes Fig.10 The structure shown is a cross-sectional view along AA;

[0045] Fig.12 yes Figure 1 A C-direction view of the structure shown;

[0046] Fig.13 yes Fig.12 The structure shown is a cross-sectional view along BB.

[0047] Description of reference numerals:

[0048] 100, modular slag zone cooler module; 101, top wall; 102, bottom wall; 103, side wall; 1011, first steel layer; 1012, first copper layer; 1013, second steel layer; 1021, third steel layer; 1022, second copper layer; 1023, fourth steel layer; 108, first water inlet pipe; 109, first water outlet pipe; 1014, edge steel layer; 106, rib plate; 1062, first rib plate; 1063, second rib plate; 201, truss beam; 108, first water inlet pipe; 109, first water outlet pipe; 208, second water inlet pipe; 209, second water outlet pipe; 301, water inlet connection Tube; 10, hot surface; 20, cold surface; 308, third water inlet pipe; 309, third water outlet pipe; 104, inner cavity; 1031, top panel; 1032, bottom panel; 1033, side panel; 1034, inner cover; 1035, outer cover; 401, first cooling water trough; 601, second cooling water trough; 501, third cooling water channel; 18, inner tube; 19, outer tube; 1036, rib plate; 4011, linear cooling water trough; 4012, curved cooling water trough; 1061, rear side; 212, connecting line; 1018, first groove; 1028, second groove; 310, limit groove. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In the following detailed description, reference may be made to the various specification drawings that are part of the present application and are used to illustrate specific embodiments of the present application. In the accompanying drawings, similar reference numerals describe substantially similar components in different figures. The various specific embodiments of the present application are described below in sufficient detail so that a person of ordinary skill in the art with relevant knowledge and skills in the art can implement the technical solutions of the present application. It should be understood that other embodiments may also be used or structural, logical or electrical changes may be made to the embodiments of the present application.

[0051] Figure 1 It is a three-dimensional structural schematic diagram of a combined slag zone cooler module according to an embodiment of the present application. Figure 2 This is a structural view of the outer side of the inner cavity of the combined slag zone cooler module of the embodiment of the present application. Figure 1-Figure 2As shown, the combined slag zone cooler module 100 includes a top wall 101 and a bottom wall 102 fixedly connected to each other, and side walls 103 on both sides, which surround and form an inner cavity 104 with an opening, and the inner cavity 104 is filled with heat-resistant casting material. The top wall 101 and the bottom wall 102 are respectively provided with cooling water channels (not shown in the figure) composed of a water tank (not shown in the figure) and a cover plate (not shown in the figure). The top wall 101 includes a first steel layer 1011, a first copper layer 1012, and a second steel layer 1013 that are sequentially combined into one along the direction from the hot surface 10 to the cold surface 20. Among them, the first steel layer 1011 includes a cladding steel layer 1014, which is extended and bent and is composited and fixed with the end section of the first copper layer 1012. The bottom wall 102 includes a third steel layer 1021, a second copper layer 1022, and a fourth steel layer 1023 that are sequentially combined into one along the direction from the hot surface 10 to the cold surface 20.

[0052] The combined slag zone cooler module 100 proposed in the embodiment of the present application includes a top wall 101 and a bottom wall 102 made of copper-steel composite. When manufacturing the combined slag zone cooler module 100, the top wall 101, the side wall 103 and the bottom wall 102 can be assembled to form a complete combined slag zone cooler module 100, and the manufacturing process is simple and efficient. In addition, since the top wall 101 and the bottom wall 102 of the combined slag zone cooler module 100 of the present application are made of a copper-steel composite structure, the hot surface 10 is a steel layer, which can significantly improve the bearing strength of the slag zone cooler, prevent the upper slag skin from falling off and causing adverse effects and deformation. Furthermore, since the first steel layer 1011 includes a cladding steel layer, the hot surface 10 of the entire combined slag zone cooler module 100 is coated with a steel layer (without dead corners), so that the entire hot surface will maintain a high ability to resist adverse effects in the furnace.

[0053] Further, the cold surface 20 of the top wall 101 and / or the cold surface 20 of the bottom wall 102 is provided with a strength reinforcement member for enhancing the support strength of the top wall 101 and the bottom wall 102. Figure 1 As shown, in some embodiments of the present application, the strength reinforcement member is optionally a rib plate 106, which is vertically set between the top wall 101 and the side wall 103 and connected to the top wall 101 and the bottom wall 102 respectively. The rib plate 106 as a supporting structure can specifically include two forms. The first form is that the rear side surface 1061 of the rib plate 106 does not completely fit the cold surface 20 of the top wall 101; the second form is as follows: Figure 1 In the form shown in , the rear side surface 1061 of the rib plate 106 completely fits the cold surface 20 of the top wall 101. Further, the number of rib plates 106 can be multiple, and the multiple rib plates 106 are arranged in sequence along the length direction of the connection line 212 of the top wall 101 and the side wall 103.

[0054] The strength reinforcement member is arranged between the top wall and the bottom wall to significantly enhance the bearing strength of the top wall and the bottom wall. The strength reinforcement member is designed as a rib plate structure to increase the contact area with the wall in the length direction, and further enhance the bearing strength of the top wall and the bottom wall.

[0055] Continue to see Figure 1 As shown, the ribs 106 of the combined slag zone cooler module 100 include a first rib 1062 and a second rib 1063 disposed adjacent to each other. In the cross-sectional direction perpendicular to the inner cavity 104, the area of ​​the first rib 1062 is smaller than the area of ​​the second rib 1063 (the areas of the first rib 1062 and the second rib 1063 are different). The first rib 1062 and the second rib 1063 are alternately distributed in the length direction of the connecting line 212. The alternating arrangement of the first rib 1062 and the second rib 1063 can improve the support strength while saving the use of materials.

[0056] Figure 3 FIG. 1 is a schematic diagram of the three-dimensional structure of another combined slag zone cooler module according to an embodiment of the present application. Figure 3 As shown, the strength reinforcement member of the combined slag zone cooler module 100 is a truss beam 201, and the truss beam 201 is arranged on the second steel layer 1013 of the top wall 101 and / or the fourth steel layer 1023 of the bottom wall 102 (the truss beam 201 is connected and fixed to the second steel layer 1013 of the top wall 101 and / or the fourth steel layer 1023 of the bottom wall 102). In some embodiments of the present application, optionally, the truss beam 201 is a steel structure, which can significantly enhance the support strength of the top wall 101 and the bottom wall 102.

[0057] In some embodiments of the present application, optionally, there are two ways to connect the cooling water channels in the top wall 101 and the cooling water channels in the bottom wall 102. The first way is that the cooling water channels respectively opened in the top wall 101 and the bottom wall 102 are connected in series with each other within the whole of the combined slag zone cooler module 100. For example, the water outlet of the cooling water channel of the top wall 101 is connected to the water inlet of the cooling water channel of the bottom wall 102. The second way is that the cooling water channels respectively opened in the top wall 101 and the bottom wall 102 are connected in series with each other inside their respective wall bodies. For example, the water inlet and the water outlet of the cooling water channel of the top wall 101 are arranged on the side of the top wall away from the connecting line 212 of the top wall and the bottom wall. The water inlet and the water outlet of the cooling water channel in the bottom wall 102 are arranged on the side of the bottom wall 102 away from the connecting line 212 between the top wall and the bottom wall, and the water outlet of the cooling water channel on the top wall 101 and the water inlet of the cooling water channel on the bottom wall 102 are not connected. In this way, the cooling water channel of the bottom wall 102 and the cooling water channel of the top wall are independent of each other, and the water outlet of the cooling water channel of the top wall 101 and the water inlet of the cooling water channel of the bottom wall 102 are not connected.

[0058] Figure 4Schematic diagram of the structure of a cooling water tank on the top wall of the combined slag zone cooler module of the embodiment of the present application. Figure 1 and Figure 4 As shown, the top wall 101 includes a first cooling water trough 401 opened on the first copper layer 1012, and the second steel layer 1013 covers the first cooling water trough 401 to form a cover plate and constitutes a first cooling water channel. The cooling liquid in the first cooling water channel is introduced by a first water inlet pipe 108 penetrating the second steel layer 1013 and is led out by a first water outlet pipe 109.

[0059] Figure 5 Schematic diagram of partial components of a combined slag zone cooler module according to an embodiment of the present application. Figure 1 and Figure 5 As shown, the bottom wall 102 includes a second cooling water trough 601 opened on the second copper layer 1022, and the fourth steel layer 1023 covers the second cooling water trough 601 to form a cover plate and constitutes the second cooling water trough 601. The cooling liquid in the second cooling water trough 601 is introduced by a second water inlet pipe 208 penetrating the fourth steel layer 1023 and is led out by a second water outlet pipe 209.

[0060] In the embodiment of the present application, the cooling water tank can be machined, which can not only reduce the cost but also improve the production efficiency compared with multi-stage welding. In addition, since the cooling water tank is provided in the copper layer of the wall, the overall quality can be further improved compared with the slag zone cooler formed by casting the casting body and the cooling water pipe.

[0061] In the embodiment of the present application, the first cooling water tank and the second cooling water tank may be in various forms, for example, Figure 4 and Figure 5In the first cooling water trough 401 and the second cooling water trough 601 shown, the first cooling water trough 401 arranged in the top wall 101 and the second cooling water trough 601 arranged in the bottom wall 102, both of which are arranged in two numbers in their respective wall bodies. Further, the first cooling water trough 401 and / or the second cooling water trough 601 are composed of a linear cooling water trough 4011 and a curved cooling water trough 4012 connected to each other, the curved cooling water troughs 4012 of the two cooling water channels on the same wall body are arranged alternately, and the water inlet and water outlet of the same cooling water channel are both arranged on the side close to the opening of the inner cavity 104. In addition, the water inlet of the same cooling water channel is connected to its linear cooling water trough 4011, and the water outlet of the same cooling water channel is connected to its curved cooling water trough 4012. After entering the water inlet of the same cooling water channel, the cooling water first passes through the linear cooling water trough 4011 and then passes through the curved cooling water trough 4012 before reaching the water outlet. The staggered arrangement of two cooling water channels on each wall can significantly improve the cooling capacity of the wall, and the design of the linear and curved cooling water troughs can further improve the heat dissipation efficiency. Correspondingly, the water inlet and outlet of the cooling water channel are arranged on the same side, so that the contact area of ​​the cooling water of each wall can be significantly increased, and the heat dissipation efficiency can also be improved.

[0062] Figure 6 It is a schematic cross-sectional view of another cooling water trough on the top wall of the combined slag zone cooler module according to an embodiment of the present application. Figure 7 A schematic cross-sectional view of another cooling water tank on the bottom wall of the combined slag zone cooler module of an embodiment of the present application. Figure 6 and Figure 7 As shown, there are two first cooling water grooves 401 and two second cooling water grooves 601, and each cooling water groove is a serpentine groove body, and the cooling water grooves on the same wall are staggered. Figure 6 The first cooling water groove 401 shown has a discontinuity in the cross-sectional view due to the bent structure of the top wall 101 and the oblique section line, but does not affect the continuity of the cooling water groove in the top wall 101. In addition, the present application does not limit the number of cooling water grooves in the top wall 101 and the bottom wall 102, and correspondingly, the number of water inlets and water outlets of the cooling water channel of the same wall can also be set according to the number of cooling water grooves.

[0063] Combination Figure 1 and Figure 3As shown, in order to connect the cooling water channels in each wall, a water inlet pipe and a water outlet pipe are arranged on the wall of the combined slag zone cooler module, which are respectively connected to the water inlet and the water outlet of the cooling water channel. In some embodiments of the present application, optionally, the first water inlet pipe 108 and the first water outlet pipe 109 are both arranged on the wall of the cold surface of the top wall 101 facing the bottom wall 102; the second water outlet pipe 209 and the second water inlet pipe 208 are arranged on the wall of the cold surface of the bottom wall 102 facing the top wall 101.

[0064] In some embodiments of the present application, optionally, if the cooling water channel in the top wall and the cooling water channel in the bottom wall are connected in series, the corresponding two ways of series connection can be: first, see Figure 1 As shown, the first water inlet pipe 108 and the first water outlet pipe 109 are both arranged on the cold surface of the top wall 101 close to the opening; the second water outlet pipe 209 and the second water inlet pipe 208 are arranged on the cold surface of the bottom wall 102 close to the opening. The first water outlet pipe 109 and the second water inlet pipe 208 are connected to form a water inlet connecting pipe 301, and the water inlet connecting pipe 301 is an integrally formed structure. Furthermore, the water inlet connecting pipe 301 is a straight pipe. Under this connection mode, optionally, the setting mode of the cooling water troughs on the top wall 101 and the bottom wall 102 can refer to Figure 4 and Figure 5 .

[0065] The second one, see Figure 3 As shown, the first water outlet pipe 109 is arranged on the wall of the top wall 101 facing the opening (the top wall 101 is a curved top wall, and the position of the first water outlet pipe 109 on the wall of the top wall 101 is close to the junction of the top wall 101 and the bottom wall 102), and the second water inlet pipe 208 is arranged on the wall of the bottom wall close to the junction of the top wall 101 and the bottom wall 102, and the first water outlet pipe 109 and the second water inlet pipe 208 are connected to each other. In this connection mode, optionally, the setting mode of the cooling water tank on the top wall 101 and the bottom wall 102 can refer to Figure 6 and Figure 7 The cooling water channels on the corresponding positions of the top wall 101 and the bottom wall 102 (for example, located on the same side when viewed from the opening of the inner cavity 104) are connected through the water inlet pipe and the water outlet pipe provided on each of them.

[0066] In some embodiments of the present application, optionally, if the cooling water channel in the top wall and the cooling water channel in the bottom wall are not connected in series, correspondingly, the first water outlet pipe and the second water inlet pipe are not connected. Figure 1 As shown, the first water outlet pipe 109 and the second water inlet pipe 208 are disconnected, and the first water outlet pipe 109 is set to the same bending structure as the first water inlet pipe 108, and the second water inlet pipe 208 is also set to a bending structure with the pipe opening facing outward.

[0067] Continue to see Figure 2As shown, the top wall 101 also includes a plurality of first grooves 1018, which are formed by passing through the first steel layer 1011 and the first copper layer 1012; the bottom wall 102 also includes a plurality of second grooves 1028, which are formed by passing through the third steel layer 1021 and the second copper layer 1022. The design of the first grooves 1018 and the second grooves 1028 is mainly to adapt to the complex thermal stress and mechanical stress inside the blast furnace, and also helps to form a stable slag skin protective layer on the cooling wall (each wall body can also be called a cooling wall). The presence of the first grooves 1018 and the second grooves 1028 can increase the contact area between the cooling wall and the lining of the blast furnace, improve the cooling efficiency, and help disperse the stress to prevent the cooling wall from breaking or being damaged. In addition, the first grooves and the second grooves can also promote the adhesion of the slag skin, form a protective slag skin layer, and further enhance the durability and service life of the cooling wall. However, the design and use of the first grooves and the second grooves also face some challenges, such as the depth and shape of the grooves need to be precisely controlled to avoid excessive erosion or damage.

[0068] Continue to see Figure 1 As shown, a third cooling water channel is opened in the side wall 103, and the cooling liquid in the third cooling water channel is introduced and led out respectively by a third water inlet pipe 308 and a third water outlet pipe 309 which are penetrated through the wall body of the side wall 103 located in the inner cavity 104; wherein, the third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series with each other in the module; or, the third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series with each other inside their respective wall bodies.

[0069] Figure 8 1 is a longitudinal sectional view of a side wall of a combined slag zone cooler module according to an embodiment of the present application. Figure 1 and Figure 8 As shown, the side wall 103 is made of steel, and includes a top panel 1031, a bottom panel 1032, a side panel 1033, an inner cover plate 1034, and an outer cover plate 1035. The top panel 1031, the bottom panel 1032, and the side panel 1033 are interconnected to form a cylindrical structure, and the inner cover plate 1034 and the outer cover plate 1035 are respectively covered at both ends of the cylindrical structure to form a box-like structure.

[0070] Continue to see Figure 3 As shown, limiting grooves 310 are provided on the fourth steel layer 1023 and the second steel layer 1013 , the top panel 1031 of the side wall 103 is fixed in the limiting groove 310 of the second steel layer 1013 , and the bottom panel 1032 of the side wall 103 is fixed in the limiting groove 310 of the fourth steel layer 1023 .

[0071] In some embodiments of the present application, optionally, the top panel of the side wall is part of the second steel layer, and the bottom panel of the side wall is part of the fourth steel layer. Figure 8As shown, the top panel 1031 of the side wall 103 is a part of the second steel layer 1013; the bottom panel 1032 of the side wall 103 is a part of the fourth steel layer 1023. The third cooling water channel 501 located in the side wall 103 is a tubular cooling water channel, which is composed of a cooling water tank protruding in the box-shaped structure and an inner cover plate 1034. The design that the top panel of the side wall is a part of the second steel layer and the bottom panel of the side wall is a part of the fourth steel layer can reduce the use of materials and reduce costs.

[0072] In other embodiments of the present application, the top panel of the side wall and the bottom panel of the side wall are designed separately and are not part of the corresponding steel layer. Fig. 9 FIG. 2 is a longitudinal cross-sectional view of another side wall of the combined slag zone cooler module of the embodiment of the present application. Fig. 9 As shown, the top panel 1031 of the side wall 103 is independent of the second steel layer 1013; the bottom panel 1032 of the side wall 103 is independent of the fourth steel layer. The top panel 1031, the bottom panel 1032, the side panel 1033, the inner cover 1034 and the outer cover 1035 of the side wall 103 form a box-like structure, and a plurality of ribs 1036 are arranged in the box-like structure. The plurality of ribs divide the internal space of the box-like structure to form a third cooling water channel. In this way, the third cooling water channel is a box-like water channel.

[0073] In the embodiment of the present application, the cooling water channel in the side wall 103 can be connected in series with the cooling water channel in the bottom wall 102, or they can be independent of each other. Figure 1 and Figure 3 As shown, the third water inlet pipe 308 is arranged at the bottom of the side wall 103 and close to the opening of the inner cavity 104, the third water outlet pipe 309 is arranged at the top of the inner cover plate and close to the opening, and the third water inlet pipe 308 and the second water outlet pipe 209 are connected to each other.

[0074] If the cooling water channel in the side wall 103 and the cooling water channel in the bottom wall 102 are independent of each other, the third water outlet pipe 309 and the third water inlet pipe 308 are both arranged on the top of the inner cover plate 1034 and close to the opening, and the third water inlet pipe 308 and the second water outlet pipe 209 are independently arranged.

[0075] It should be noted that the cooling water channels in the three walls can be connected in series, so that the water inlet of the combined slag zone cooler module is on one wall and the water outlet is on another wall. Alternatively, the cooling water channels in each wall are independent of each other. Alternatively, the cooling water channels of two walls are connected in series, and the other one is independent. This application does not make specific limitations on this, and any form of connection method is within the protection scope of this application.

[0076] In some embodiments of the present application, optionally, the first water inlet pipe, the second water inlet pipe, the third water inlet pipe, the first water outlet pipe, the second water outlet pipe and the third water outlet pipe all include an inner pipe and an outer pipe sleeved on the inner pipe, and there is a gap between the inner pipe and the outer pipe. Figure 1 and Figure 3 As shown, the first water inlet pipe 108, the second water inlet pipe 208, the third water inlet pipe 308, the first water outlet pipe 109, the second water outlet pipe 209 and the third water outlet pipe 309 all include an inner pipe 18 and an outer pipe 19 sleeved on the inner pipe 18, and there is a gap between the inner pipe 18 and the outer pipe 19. In this case, since the inner cavity 104 is filled with heat-resistant casting material, the pipe in the inner cavity 104 is set as a double-layer pipe to improve the bearing strength of the pipe, and the outer pipe 19 can protect the inner pipe 18 for circulating cooling liquid.

[0077] Fig.10 yes Figure 1 D-direction view of the structure shown, Fig.11 yes Fig.10 The structure shown is a cross-sectional view along AA. Figure 1 , Fig.10 and Fig.11 As shown, the inner tube 18 of the first water inlet pipe 108 passes through the second steel layer 1013 and is connected to the first cooling water tank 401. The second water inlet pipe 208 and the second cooling water tank 601 are connected in a similar manner. Fig.12 yes Figure 1 The C-direction view of the structure shown, Fig.13 yes Fig.12 The structure shown is a cross-sectional view along BB. Fig.12 and Fig.13 As shown, the inner pipe 18 of the third water outlet pipe 309 passes through the inner cover plate 1034 and is connected to the third cooling water channel 501 .

[0078] In some embodiments of the present application, the side wall may also be formed of a composite copper-steel structure. For example, the side wall includes a fourth steel layer, a third copper layer (not shown in the figure) and a fifth steel layer (not shown in the figure) which are sequentially composited into one in the direction from the hot surface to the cold surface, a serpentine third cooling water trough is provided on the third copper layer, the fifth steel layer covers the third cooling water trough to form a third cooling water channel, and the third water inlet pipe 308 and the third water outlet pipe 309 are provided on the fifth steel layer.

[0079] In some embodiments of the present application, the side wall 103 is optionally an integrally formed solid steel plate, so that the supporting strength of the side wall can be significantly enhanced.

[0080] The side wall of the combined slag zone cooler module in the embodiment of the present application can be a solid steel plate or a box-type structure with a cooling water channel inside, or a copper-steel composite plate with a similar structure to the top wall and the bottom wall.

[0081] In summary, the combined slag zone cooler module proposed in the embodiment of the present application is composed of four parts, including a top wall (steel-copper-steel three-layer composite), a bottom wall (steel-copper-steel three-layer composite), and two side walls (water steel jacket). Each wall body is provided with an independent cooling circulation channel. According to the actual water system and reasonable design, all water channels can be connected in parallel or in series to meet the heat exchange. In addition, the cooling water channels of each wall body can be completed by machining, and all technical parameters can be guaranteed. The independent cooling circulation channel can reduce the difficulty of casting and increase the cooling effect at the same time.

[0082] Furthermore, the combined slag zone cooler module of the embodiment of the present application adopts a modular assembly method, and the wall bodies in different positions can be manufactured separately, and then assembled into a complete combined slag zone cooler module. A single combined slag zone cooler module can be assembled again to form an annular furnace cooling wall. The modules of each wall body of the combined slag zone cooler module can reduce the difficulty of production, ensure the overall quality, save manufacturing costs, and the wall bodies can be combined with each other, which improves production efficiency and product qualification rate. Through an independent cooling circulation channel, the casting difficulty can be reduced and the cooling effect can be increased at the same time.

[0083] The above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the scope of the present application. Therefore, all equivalent technical solutions should also fall within the scope disclosed in the present application.

Claims

1. A combined slag zone cooler module, comprising a top wall and a bottom wall fixedly connected to each other, and two side walls, which surround and form an inner cavity with an opening, characterized in that: The inner cavity is filled with heat-resistant casting material, and the top wall and the bottom wall are respectively provided with cooling water channels consisting of a water trough and a cover plate; The top wall includes a first steel layer, a first copper layer, and a second steel layer that are sequentially combined into one along the direction from the hot surface to the cold surface; the bottom wall includes a third steel layer, a second copper layer, and a fourth steel layer that are sequentially combined into one along the direction from the hot surface to the cold surface; The first steel layer includes an edge-wrapped steel layer, and the edge-wrapped steel layer is extended and bent to wrap, composite and fix with the end section of the first copper layer.

2. The combined slag zone cooler module according to claim 1, characterized in that: The cold surface of the top wall and / or the cold surface of the bottom wall is provided with a strength reinforcement member for enhancing the support strength of the top wall and the bottom wall.

3. The combined slag zone cooler module according to claim 2, characterized in that: The strength reinforcement member is a rib plate, which is vertically set up between the top wall and the side wall and connected to the top wall and the bottom wall respectively.

4. The combined slag zone cooler module according to claim 3, characterized in that: There are multiple ribs, and the multiple ribs are arranged in sequence along the length direction of the connection line between the top wall and the side wall.

5. The combined slag zone cooler module according to claim 4, characterized in that: The ribs include a first rib and a second rib disposed adjacent to each other, and in a cross-sectional direction perpendicular to the inner cavity, the areas of the first rib and the second rib are different.

6. The combined slag zone cooler module according to claim 5, characterized in that: The first ribs and the second ribs are alternately distributed in the length direction of the connecting line.

7. The combined slag zone cooler module according to claim 2, characterized in that: The strength reinforcement member is a truss beam, and the truss beam is connected and fixed to the second steel layer of the top wall and / or the fourth steel layer of the bottom wall.

8. The combined slag zone cooler module according to claim 1, characterized in that: The cooling water channels respectively provided in the top wall and the bottom wall are connected in series with each other within the whole of the combined slag zone cooler module; Alternatively, the cooling water channels respectively opened in the top wall and the bottom wall are connected in series inside their respective wall bodies.

9. The combined slag zone cooler module according to claim 8, characterized in that: The top wall includes a first cooling water trough opened on the first copper layer, the second steel layer covers the first cooling water trough to form the cover plate and constitutes a first cooling water channel, and the cooling liquid in the first cooling water channel is introduced by a first water inlet pipe penetrating the second steel layer and led out by a first water outlet pipe.

10. The combined slag zone cooler module according to claim 9, characterized in that: The bottom wall includes a second cooling water trough opened on the second copper layer, the fourth steel layer covers the second cooling water trough to form the cover plate and constitutes a second cooling water channel, and the cooling liquid in the second cooling water channel is introduced by a second water inlet pipe penetrating the fourth steel layer and led out by a second water outlet pipe.

11. The combined slag zone cooler module according to claim 10, characterized in that: The first cooling water trough disposed in the top wall and the second cooling water trough disposed in the bottom wall, both of which are disposed in two numbers in their respective wall bodies; The first cooling water trough and / or the second cooling water trough consists of a straight cooling water trough and a curved cooling water trough connected to each other. The curved cooling water troughs of the two cooling water troughs on the same wall are arranged alternately, and the water inlet and outlet of the same cooling water trough are both arranged on the side close to the opening of the inner cavity.

12. The combined slag zone cooler module according to claim 11, characterized in that: The water inlet of the same cooling water channel is connected to its straight cooling water trough, and the water outlet of the same cooling water channel is connected to its curved cooling water trough. After the cooling water enters the water inlet of the same cooling water channel, it first passes through the straight cooling water trough and then passes through the curved cooling water trough before reaching the water outlet.

13. The combined slag zone cooler module according to claim 10, characterized in that: The first water inlet pipe and the first water outlet pipe are both arranged on the cold surface of the top wall close to the opening; the second water outlet pipe and the second water inlet pipe are arranged on the cold surface of the bottom wall close to the opening.

14. The combined slag zone cooler module according to claim 13, characterized in that: The first water outlet pipe and the second water inlet pipe are connected to form a water inlet connecting pipe, and the water inlet connecting pipe is an integrally formed structure.

15. The combined slag zone cooler module according to claim 13, characterized in that: The water inlet connecting pipe is a straight pipe.

16. The combined slag zone cooler module according to claim 10, characterized in that: The first water outlet pipe is arranged on the wall of the top wall facing the opening, and the second water inlet pipe is arranged on the wall of the bottom wall near the junction of the top wall and the bottom wall. The first water outlet pipe and the second water inlet pipe are connected to each other.

17. The combined slag zone cooler module according to claim 1, characterized in that: The top wall further includes a plurality of first grooves, which are formed by passing through the first steel layer and the first copper layer; the bottom wall further includes a plurality of second grooves, which are formed by passing through the third steel layer and the second copper layer.

18. The combined slag zone cooler module according to claim 10, characterized in that: A third cooling water channel is provided in the side wall, and the cooling liquid in the third cooling water channel is introduced and led out respectively by a third water inlet pipe and a third water outlet pipe which are provided on the wall body of the side wall located in the inner cavity; wherein, The third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series in the combined slag zone cooler module; Alternatively, the third cooling water channel, the first cooling water channel and the second cooling water channel are connected in series inside their respective walls.

19. The combined slag zone cooler module according to claim 18, characterized in that: The side wall is made of steel, and includes a top panel, a bottom panel, a side panel, an inner cover plate and an outer cover plate. The top panel, the bottom panel and the side panel are interconnected to form a cylindrical structure, and the inner cover plate and the outer cover plate are respectively covered at both ends of the cylindrical structure to form a box-like structure.

20. The combined slag zone cooler module according to claim 19, characterized in that: The top panel of the side wall is part of the second steel layer; the bottom panel of the side wall is part of the fourth steel layer.

21. The combined slag zone cooler module according to claim 20, characterized in that: The third cooling water channel is a box-type water channel, or the third cooling water channel is a tubular cooling water channel.

22. The combined slag zone cooler module according to claim 19, characterized in that: The third water inlet pipe is arranged at the bottom of the side wall and close to the opening, the third water outlet pipe is arranged at the top of the inner cover plate and close to the opening, and the third water inlet pipe and the second water outlet pipe are connected to each other; Alternatively, the third water outlet pipe and the third water inlet pipe are both arranged on the top of the inner cover plate and close to the opening, and the third water inlet pipe and the second water outlet pipe are independently arranged.

23. The combined slag zone cooler module according to claim 18, characterized in that: The first water inlet pipe, the second water inlet pipe, the third water inlet pipe, the first water outlet pipe, the second water outlet pipe and the third water outlet pipe each include an inner pipe and an outer pipe sleeved on the inner pipe, and a gap is provided between the inner pipe and the outer pipe.

24. The combined slag zone cooler module according to claim 19, characterized in that: The side wall includes a fourth steel layer, a third copper layer and a fifth steel layer which are sequentially combined into one body along the direction from the hot surface to the cold surface. A serpentine third cooling water trough is provided on the third copper layer. The fifth steel layer covers the third cooling water trough to form the third cooling water channel. The third water inlet pipe and the third water outlet pipe are passed through the fifth steel layer.

25. The combined slag zone cooler module according to claim 1, characterized in that: The side wall is an integrally formed solid steel plate.

26. The combined slag zone cooler module according to claim 20, characterized in that: Limiting grooves are provided on the fourth steel layer and the second steel layer, the top enclosure plate of the side wall is fixed in the limiting groove of the second steel layer, and the bottom enclosure plate of the side wall is fixed in the limiting groove of the fourth steel layer.

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