Blast furnace trough
By introducing a heat dissipation structure and connection design into the blast furnace tapping trough, the problem of poor heat dissipation effect of the blast furnace tapping trough under high temperature environment is solved, achieving efficient heat dissipation and cooling and length extension, thereby improving service life and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QIXIN FIREPROOF MATERIAL CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-23
AI Technical Summary
In the existing technology, the heat dissipation effect of the blast furnace tapping trough is poor in high-temperature environments, resulting in a short service life.
The heat dissipation structure of the blast furnace tapping trough is designed with a heat dissipation structure including symmetrically arranged fixed blocks, with support blocks between the fixed blocks. The support blocks are fixedly connected to the fixed blocks on both sides and are located near the molten iron flow channel. The fixed blocks are connected to each other and the support blocks are located near the molten iron flow channel. The fixed blocks are fixedly connected to partitions on the sides away from each other, and heat exchange blocks are fixedly connected to the sides of the partitions on the sides away from each other. Each heat exchange block has several mounting holes at equal intervals, and each mounting hole is equipped with a heat exchange tube.
It achieves efficient heat dissipation and cooling, preventing the iron tapping trough from overheating during long-term use and extending its service life. Furthermore, the design of the connecting structure facilitates the extension and splicing of the iron tapping trough's length, improving its applicability and stability.
Smart Images
Figure CN224394909U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of blast furnace ironmaking technology, specifically relating to a blast furnace tapping trough. Background Technology
[0002] A blast furnace is a piece of equipment used for smelting iron ore, primarily to produce pig iron, and is one of the most important pieces of equipment in the steel industry. The blast furnace smelts raw materials such as iron ore, coke, and limestone at high temperatures, removing oxygen from the iron ore to obtain molten iron. The blast furnace tapping trough is the channel used to discharge molten iron during the blast furnace smelting process. The molten iron produced in the blast furnace is discharged through the tapping trough into an iron pool for further cooling and treatment. The tapping trough is an important component of blast furnace production, ensuring the smooth and safe discharge of molten iron. Current blast furnace tapping troughs are typically made of prefabricated components. Because the tapping trough needs to operate in a high-temperature environment for extended periods, ordinary tapping troughs have poor heat dissipation, resulting in a short service life.
[0003] To address the aforementioned issues, this application proposes a blast furnace tapping trough. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides a blast furnace tapping trough that facilitates heat dissipation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace tapping trough, including an outer shell, an iron flow channel provided on the top of the outer shell, an inner lining layer fixedly connected inside the iron flow channel, and a heat dissipation structure provided inside the outer shell;
[0006] The heat dissipation structure includes symmetrically arranged fixing blocks, which are fixedly connected to the inner wall of the outer shell. Support blocks are arranged between the fixing blocks and are fixedly connected to the fixing blocks on both sides. The support blocks are located near the molten iron flow channel. A partition is fixedly connected to the side of the fixing blocks that is far apart from each other. A heat exchange block is fixedly connected to the side of the partition that is far apart from each other. Each heat exchange block has several mounting holes equidistantly opened, and a heat exchange tube is installed in each mounting hole.
[0007] As a preferred embodiment of the blast furnace tapping trough of this utility model, a plurality of reinforcing columns are provided between the fixed blocks, and the two ends of the reinforcing columns are respectively fixedly connected to the adjacent fixed blocks, and the reinforcing columns are all located at the bottom of the support blocks.
[0008] As a preferred embodiment of the blast furnace tapping trough of this utility model, the molten iron flow channel has a U-shaped structure.
[0009] As a preferred embodiment of the blast furnace tapping trough of this utility model, the inner lining has a U-shaped structure and is made of high-alumina silicon carbide material.
[0010] As a preferred embodiment of the blast furnace tapping trough of this utility model, a connecting structure is provided on the outer wall of the outer shell;
[0011] The connection structure includes symmetrically arranged first connection frames, each of which is fixedly connected to the outer shell. Each first connection frame has a first connection hole on the side away from the outer shell. A connection block is symmetrically fixedly connected to the end of the outer shell away from the first connection frame. A plug is fixedly connected to the side of each connection block away from the first connection frame. Each plug has a threaded hole. The inner wall size of the first connection frame is the same as the size of the plug.
[0012] As a preferred embodiment of the blast furnace tapping trough of this utility model, a second connecting frame is symmetrically and fixedly connected to the bottom surface of the outer shell near the first connecting frame, and an insert plate is symmetrically and fixedly connected to the bottom surface of the outer shell away from the second connecting frame.
[0013] As a preferred embodiment of the blast furnace tapping trough of this utility model, a splicing groove is provided at one end of the inner lining layer near the first connecting frame, and a splicing plate is fixedly connected to the other end of the inner lining layer away from the splicing groove. The size of the splicing plate is the same as the size of the splicing groove.
[0014] As a preferred embodiment of the blast furnace tapping trough of this utility model, each heat exchange tube is fixedly connected to an insert tube at one end near the splicing plate, and the outer diameter of the insert tube is the same as the inner diameter of the heat exchange tube.
[0015] As a preferred embodiment of the blast furnace tapping trough of this utility model, each heat exchange tube has a sealing ring fixedly connected to the end away from the insertion tube.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: A heat dissipation structure is added to this application, which utilizes the cooperation of heat exchange blocks and heat exchange tubes. By setting fixed blocks on both sides and supporting blocks on the fixed blocks, the supporting blocks can support the upper structure, ensuring the normal use of the iron discharge trough. Furthermore, this design allows a ventilation channel to be formed at the bottom of the supporting blocks, thereby improving the heat dissipation effect of the iron discharge trough. Moreover, by setting heat exchange blocks and heat exchange tubes, cooling circulating water can be connected to the heat exchange tubes, allowing the heat exchange blocks to continuously absorb heat from the iron discharge trough and transfer it to the heat exchange tubes. The circulating water in the heat exchange tubes will continuously remove heat from the heat exchange tubes. This design incorporates a high-efficiency heat dissipation and cooling system to prevent overheating of the tapping trough during prolonged use, thus extending its service life. Simultaneously, a connecting structure is added. When the length of the tapping trough needs to be extended, multiple troughs can be spliced together. The connecting block on one trough is aligned with the first connecting frame on another trough, allowing the insert to enter the first connecting frame and aligning the first connecting hole with the threaded hole. Bolts can then be used to fix the two troughs in the first connecting hole, facilitating the extension of the tapping trough's length, improving its applicability, and ensuring the proper functioning of the heat dissipation structure. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a second-view schematic diagram of the present invention;
[0020] Figure 3 This is a cross-sectional view of the present invention;
[0021] Figure 4 This is a structural schematic diagram of the location of the reinforcing column in this utility model;
[0022] Figure 5 This is a structural schematic diagram showing the location of the working layer in the iron trench of this utility model;
[0023] In the picture:
[0024] 1. Outer shell; 11. Molten iron flow channel;
[0025] 2. Inner lining layer; 21. Splicing groove; 22. Splicing panel;
[0026] 3. Heat dissipation structure; 31. Fixing block; 32. Support block; 33. Baffle; 34. Heat exchange block; 35. Mounting hole; 36. Heat exchange tube; 37. Reinforcing column; 38. Sealing ring; 39. Insert tube;
[0027] 4. Connection structure; 41. First connection frame; 42. First connection hole; 43. Connection block; 44. Insert block; 45. Threaded hole; 46. Second connection frame; 47. Insert plate. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1
[0030] like Figures 1 to 5 As shown;
[0031] To facilitate heat dissipation, the blast furnace tapping trough includes an outer shell 1, an iron flow channel 11 is provided on the top of the outer shell 1, an inner lining layer 2 is fixedly connected inside the iron flow channel 11, and a heat dissipation structure 3 is provided inside the outer shell 1.
[0032] The heat dissipation structure 3 includes symmetrically arranged fixing blocks 31, which are fixedly connected to the inner wall of the outer shell 1. Support blocks 32 are arranged between the fixing blocks 31, and the support blocks 32 are fixedly connected to the fixing blocks 31 on both sides. The support blocks 32 are located near the molten iron flow channel 11. A partition plate 33 is fixedly connected to the side of the fixing blocks 31 that is far apart from each other. A heat exchange block 34 is fixedly connected to the side of the partition plate 33 that is far apart from each other. A number of mounting holes 35 are equally spaced on each heat exchange block 34, and a heat exchange tube 36 is installed in each mounting hole 35.
[0033] In this implementation scheme: by setting fixed blocks 31 on both sides and setting support blocks 32 on the fixed blocks 31, the support blocks 32 can support the upper structure, ensuring the normal use of the tapping trough. This design also allows the bottom of the support blocks 32 to form a ventilation channel, thereby improving the heat dissipation effect of the tapping trough. Furthermore, by setting heat exchange blocks 34 and heat exchange tubes 36, cooling circulating water can be connected to the heat exchange tubes 36, allowing the heat exchange blocks 34 to continuously absorb heat from the tapping trough and transfer it to the heat exchange tubes 36. The circulating water in the heat exchange tubes 36 will continuously remove the heat from the heat exchange tubes 36, thereby achieving efficient heat dissipation and cooling, preventing the tapping trough from overheating during long-term use, and improving the service life of the tapping trough.
[0034] Furthermore:
[0035] like Figure 3 and Figure 4 As shown;
[0036] Based on the above:
[0037] To improve the stability of the structure, in an optional embodiment, a plurality of reinforcing columns 37 are provided between the fixing blocks 31, and the two ends of the reinforcing columns 37 are respectively fixedly connected to the adjacent fixing blocks 31. The reinforcing columns 37 are all located at the bottom of the support block 32.
[0038] In this embodiment, the stability of the overall structure of the iron outlet trough can be improved by setting the reinforcing column 37, and the reinforcing column 37 will not block the ventilation channel and will not affect the heat dissipation effect.
[0039] Furthermore:
[0040] like Figure 2 and Figure 3 As shown;
[0041] Based on the above:
[0042] To facilitate the flow of molten iron, in an optional embodiment, the molten iron flow channel 11 has a U-shaped structure, the inner lining layer 2 has a U-shaped structure, and the inner lining layer 2 is made of high-alumina silicon carbide material.
[0043] Furthermore:
[0044] like Figure 1 , Figure 4 and Figure 5 As shown;
[0045] Based on the above:
[0046] To facilitate the connection of multiple iron outlet trenches, in an optional embodiment, a connection structure 4 is provided on the outer wall of the outer casing 1;
[0047] The connecting structure 4 includes symmetrically arranged first connecting frames 41, each first connecting frame 41 being fixedly connected to the outer shell 1. Each first connecting frame 41 has a first connecting hole 42 on the side away from the outer shell 1. A connecting block 43 is symmetrically fixedly connected to the end of the outer shell 1 away from the first connecting frame 41. Each connecting block 43 has an insert block 44 fixedly connected to the side away from the first connecting frame 41. Each insert block 44 has a threaded hole 45. The inner wall size of the first connecting frame 41 is the same as the size of the insert block 44.
[0048] In this embodiment: when it is necessary to extend the length of the iron discharge groove, multiple iron discharge grooves can be spliced together. The connecting block 43 on one iron discharge groove is aligned with the first connecting frame 41 on another iron discharge groove, so that the insert block 44 enters the first connecting frame 41, and the first connecting hole 42 coincides with the threaded hole 45. Then, bolts can be used to fix the two iron discharge grooves in the first connecting hole 42, thereby facilitating the extension of the length of the iron discharge groove and improving its applicability.
[0049] Furthermore:
[0050] like Figure 4 and Figure 5 As shown;
[0051] Based on the above:
[0052] To improve the stability of the connection, in an optional embodiment, a second connecting frame 46 is symmetrically fixedly connected to the bottom surface of the housing 1 near the first connecting frame 41, and a plug plate 47 is symmetrically fixedly connected to the bottom surface of the housing 1 away from the second connecting frame 46.
[0053] In this embodiment: when splicing multiple iron outlet grooves, the insert plate 47 will enter the adjacent second connecting frame 46, thereby improving the stability of the connection.
[0054] Furthermore:
[0055] like Figure 4 and Figure 5 As shown;
[0056] Based on the above:
[0057] To prevent molten iron leakage, in an optional embodiment, the inner lining layer 2 has a splicing groove 21 at one end near the first connecting frame 41, and a splicing plate 22 is fixedly connected to the other end of the inner lining layer 2 away from the splicing groove 21. The size of the splicing plate 22 is the same as the size of the splicing groove 21.
[0058] In this embodiment: when splicing multiple iron tapping grooves, splicing plate 22 is placed in splicing groove 21 so that the inner lining layer 2 on two iron tapping grooves can be spliced together to prevent molten iron from leaking from the joint of the inner lining layer 2.
[0059] Furthermore:
[0060] like Figure 4 and Figure 5 As shown;
[0061] Based on the above:
[0062] To facilitate the connection of the heat exchange tubes 36, in an optional embodiment, each heat exchange tube 36 is fixedly connected to an insert tube 39 at the end near the splicing plate 22. The outer diameter of the insert tube 39 is the same as the inner diameter of the heat exchange tube 36, and a sealing ring 38 is fixedly connected to the end of each heat exchange tube 36 away from the insert tube 39.
[0063] In this embodiment: when multiple iron outlet trenches are spliced together, the insertion tube 39 on one iron outlet trench will enter the heat exchange tube 36 on another iron outlet trench, thereby ensuring the flow of circulating water, and by setting the sealing ring 38, the circulating water can be prevented from leaking through the connection of the heat exchange tube 36.
[0064] The working principle and usage process of this utility model are as follows: By setting fixed blocks 31 on both sides and supporting blocks 32 on the fixed blocks 31, the supporting blocks 32 can support the upper structure, ensuring the normal use of the tapping trough. This design also allows ventilation channels to form at the bottom of the supporting blocks 32, thereby improving the heat dissipation effect of the tapping trough. Furthermore, by setting heat exchange blocks 34 and heat exchange tubes 36, cooling circulating water can be connected to the heat exchange tubes 36. The heat exchange blocks 34 continuously absorb heat from the tapping trough and transfer it to the heat exchange tubes 36. The circulating water in the heat exchange tubes 36 continuously removes heat from the heat exchange tubes 36, achieving efficient heat dissipation and cooling, preventing overheating of the tapping trough during prolonged use, and extending its service life. When it is necessary to extend the length of the tapping trough, multiple tapping troughs can be spliced together, connecting the sections of one of the tapping troughs... The connecting block 43 is aligned with the first connecting frame 41 on another iron outlet groove, so that the insert block 44 enters the first connecting frame 41 and the first connecting hole 42 coincides with the threaded hole 45. Then, bolts can be used to fix the two iron outlet grooves in the first connecting hole 42, which facilitates the extension of the length of the iron outlet groove and improves its applicability. When splicing multiple iron outlet grooves, the insert plate 47 will enter the adjacent second connecting frame 46, thereby improving the stability of the connection. The splicing plate 22 will be set in the splicing groove 21, so that the inner lining layer 2 on the two iron outlet grooves can be spliced together to prevent molten iron from leaking from the connection of the inner lining layer 2. The insert pipe 39 on one iron outlet groove will enter the heat exchange pipe 36 on the other iron outlet groove, thereby ensuring the circulation of circulating water. The sealing ring 38 can prevent circulating water from leaking through the connection of the heat exchange pipe 36.
[0065] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A blast furnace trough comprising a shell (1), characterized in that: The top of the outer shell (1) is provided with a molten iron flow channel (11), and an inner lining layer (2) is fixedly connected inside the molten iron flow channel (11). A heat dissipation structure (3) is provided inside the outer shell (1). The heat dissipation structure (3) includes symmetrically arranged fixing blocks (31), which are fixedly connected to the inner wall of the outer shell (1). Support blocks (32) are arranged between the fixing blocks (31), and the support blocks (32) are fixedly connected to the fixing blocks (31) on both sides. The support blocks (32) are located near the molten iron flow channel (11). A partition (33) is fixedly connected to the side of the fixing blocks (31) that is far apart from each other. A heat exchange block (34) is fixedly connected to the side of the partition (33) that is far apart from each other. A plurality of mounting holes (35) are equally spaced on each heat exchange block (34), and a heat exchange tube (36) is installed in each mounting hole (35).
2. The blast furnace trough according to claim 1, characterized in that: A plurality of reinforcing columns (37) are provided between the fixing blocks (31), and the two ends of the reinforcing columns (37) are respectively fixedly connected to the adjacent fixing blocks (31). The reinforcing columns (37) are all located at the bottom of the support block (32).
3. The furnace trough according to claim 1, characterized in that: The molten iron channel (11) has a U-shaped structure.
4. The furnace trough according to claim 3, characterized in that: The inner lining layer (2) has a U-shaped structure and is made of high-alumina silicon carbide material.
5. The furnace trough according to claim 1, characterized in that: A connecting structure (4) is provided on the outer wall of the outer shell (1); The connection structure (4) includes symmetrically arranged first connection frames (41), each of which is fixedly connected to the outer shell (1). Each of the first connection frames (41) has a first connection hole (42) on the side away from the outer shell (1). A connection block (43) is symmetrically fixedly connected to the end of the outer shell (1) away from the first connection frame (41). Each of the connection blocks (43) has a plug (44) fixedly connected to the side away from the first connection frame (41). Each plug (44) has a threaded hole (45). The inner wall size of the first connection frame (41) is the same as the size of the plug (44).
6. The furnace trough according to claim 5, characterized in that: A second connecting frame (46) is symmetrically fixedly connected to the bottom surface of the outer shell (1) on the side close to the first connecting frame (41), and a plug plate (47) is symmetrically fixedly connected to the bottom surface of the outer shell (1) on the side away from the second connecting frame (46).
7. The furnace trough according to claim 5, characterized in that: The inner lining layer (2) has a splicing groove (21) at one end near the first connecting frame (41), and a splicing plate (22) is fixedly connected to the other end of the inner lining layer (2) away from the splicing groove (21). The size of the splicing plate (22) is the same as the size of the splicing groove (21).
8. The furnace trough according to claim 7, characterized in that: Each heat exchange tube (36) is fixedly connected to an insert tube (39) at one end near the splicing plate (22), and the outer diameter of the insert tube (39) is the same as the inner diameter of the heat exchange tube (36).
9. The furnace trough according to claim 8, characterized in that: Each of the heat exchange tubes (36) is fixedly connected to a sealing ring (38) at the end away from the insertion tube (39).