Rich slag furnace inner cooling wall water cooling system

Abstract

This utility model relates to the field of cooling technology for rich slag furnaces, and in particular to a water-cooling system for the cooling wall inside a rich slag furnace. The upper end of the bottom straight section of the cooling wall is sequentially and fixedly connected to a lower inner inclined wall section, an upper inner inclined wall section, a lower outer inclined wall section, an upper outer inclined wall section, and a top straight wall section. Cooling pipes are fixedly connected to each of these sections. By configuring cooling pipes on furnace wall sections of different heights, this utility model allows for the selection of cooling pipes that are more suitable for the furnace wall structure, thereby increasing the cooling pipe coverage area and improving the cooling effect. Furthermore, by controlling the cooling pipes independently on different height furnace wall sections, the circulation speed of the cooling pipes can be increased, thus improving heat exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for rich slag furnaces, and in particular to a water-cooling system for the cooling wall of a rich slag furnace. Background Technology

[0002] In the metallurgical industry, rich slag furnaces are core equipment for processing high-value slag or operating under extreme high-temperature conditions. Their furnace walls typically integrate indispensable cooling systems. These systems ensure the safety of the furnace structure by continuously removing heat, preventing the furnace shell steel from softening and deforming due to high temperatures, and eliminating catastrophic accidents such as burn-through. However, existing rich slag furnace technologies have limited coverage areas for their internal wall cooling systems, failing to fully protect the entire high-heat-load area. This leads to frequent localized hot spots, and the cooling systems on different sections of the furnace wall cannot be controlled independently, thus reducing heat exchange efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing cooling systems, such as limited coverage of cooling elements, inability to fully protect the entire high-heat-load area, resulting in frequent local hot spots, and the inability to independently control the cooling system on the furnace wall section, thereby reducing exchange efficiency. Therefore, this invention proposes a water-cooled cooling wall system for rich slag furnaces.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A water-cooling system for the cooling wall inside a rich slag furnace is designed, comprising a straight wall section at the bottom of the cooling wall. The upper end of the straight wall section at the bottom of the cooling wall is sequentially and fixedly connected to a lower section of the inner inclined wall, an upper section of the inner inclined wall, a lower section of the outer inclined wall, an upper section of the outer inclined wall, and a straight wall section at the top of the cooling wall. Cooling pipes are fixedly connected to each of the straight wall section at the bottom of the cooling wall, the lower section of the inner inclined wall, the upper section of the inner inclined wall, the lower section of the outer inclined wall, the upper section of the outer inclined wall, and the straight wall section at the top of the cooling wall. A first thermometer is fixedly connected to the inlet of each cooling pipe, and a second thermometer is fixedly connected to the outlet of each cooling pipe.

[0005] Preferably, slots are provided on the bottom straight section of the cooling wall, the lower section of the inner inclined wall of the cooling wall, the upper section of the inner inclined wall of the cooling wall, the lower section of the outer inclined wall of the cooling wall, the upper section of the outer inclined wall of the cooling wall, and the top straight section of the cooling wall, and an embedded alarm thermocouple is connected in each slot.

[0006] Preferably, the top straight section of the cooling wall includes a first cooling wall, a second cooling wall is connected to the first cooling wall, a chamber is provided between the first cooling wall and the second cooling wall, and a cooling pipe is connected inside the chamber.

[0007] Preferably, both the first cooling wall and the second cooling wall are copper-chromium-zirconium alloy cooling walls.

[0008] Preferably, the first cooling wall and the second cooling wall are both fixedly connected with interlocking teeth.

[0009] The water-cooled system for the cooling wall of a rich slag furnace proposed in this utility model has the following advantages: By setting cooling pipes on furnace wall sections of different heights, cooling pipes that are more suitable for the structure of the furnace wall section can be configured according to the structure of the furnace wall panel, thereby increasing the layout area of ​​the cooling pipes and improving the cooling effect. By controlling the cooling pipes on furnace wall sections of different heights independently, the circulation speed of the cooling pipes can be increased, thereby improving the heat exchange efficiency. Attached Figure Description

[0010] Figure 1 This invention provides a schematic diagram of the structure of a water-cooled cooling system for the inner cooling wall of a rich slag furnace. Figure 1 ; Figure 2 This invention provides a schematic diagram of the structure of a water-cooled cooling system for the inner cooling wall of a rich slag furnace. Figure 2 ; Figure 3 This is a cross-sectional structural diagram of a water-cooled cooling system for the inner cooling wall of a slag-rich furnace proposed in this utility model. Figure 4 for Figure 3 A magnified view of the structure at point A above; Figure 5 This is a schematic diagram of the connection between the first cooling wall and the cooling pipe in a water-cooled system for the cooling wall inside a rich slag furnace, as proposed in this utility model.

[0011] In the diagram: 1. Bottom straight section of cooling wall; 2. Lower section of inner inclined wall of cooling wall; 3. Upper section of inner inclined wall of cooling wall; 4. Lower section of outer inclined wall of cooling wall; 5. Upper section of outer inclined wall of cooling wall; 6. Top straight section of cooling wall; 7. Cooling pipe; 8. First thermometer; 9. Second thermometer; 10. Slot; 11. Embedded alarm thermocouple; 61. First cooling wall; 62. Second cooling wall; 63. Chamber; 64. Engaging teeth. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] Example 1: Refer to Figure 1-3A water-cooled cooling system for the cooling wall inside a rich slag furnace includes a bottom straight wall section 1. The upper end of the bottom straight wall section 1 is sequentially and fixedly connected to a lower inner inclined wall section 2, an upper inner inclined wall section 3, a lower outer inclined wall section 4, an upper outer inclined wall section 5, and a top straight wall section 6. Cooling pipes 7 are fixedly connected inside the bottom straight wall section 1, the lower inner inclined wall section 2, the upper inner inclined wall section 3, the lower outer inclined wall section 4, the upper outer inclined wall section 5, and the top straight wall section 6. A first thermometer 8 is fixedly connected to the inlet of each cooling pipe 7, and a second thermometer 9 is fixedly connected to the outlet of each cooling pipe 7. The cooling pipes 7 are all connected to an external circulation system.

[0014] Work process: Cooling water is introduced into cooling pipe 7 through the outlet of cooling pipe 7. The first thermometer 8 detects the introduced cooling water. As the cooling water flows in cooling pipe 7, it cools the cooling wall. The heated cooling water is released from the outlet of cooling pipe 7. The second thermometer 9 detects the cooling water from the outlet of cooling pipe 7. The external circulation system monitors the temperature of the inlet and outlet of each section of cooling pipe 7 separately, and reasonably controls the circulation rate of each section of furnace wall cooling pipe 7, so as to achieve reasonable allocation of cooling effect. By setting cooling pipes 7 on furnace wall sections of different heights, cooling pipes 7 that are more suitable for the structure can be configured according to the structure of the furnace wall section, thereby increasing the layout area of ​​the cooling pipes and improving the cooling effect. By controlling the cooling pipes 7 independently on furnace wall sections of different heights, the circulation speed of the cooling pipes 7 can be increased, thereby improving the heat exchange efficiency.

[0015] Example 2: Refer to Figure 4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that slots 10 are provided on the bottom straight wall section 1, the lower inclined wall section 2, the upper inclined wall section 3, the lower inclined wall section 4, the upper inclined wall section 5, and the top straight wall section 6 of the cooling wall. Each slot 10 is connected to an embedded alarm thermocouple 11. When the cooling wall is normal, the temperature of the embedded alarm thermocouple 11 is low. When the cooling wall is eroded to a certain depth, the embedded alarm thermocouple 11 will be directly exposed to high temperature, and the temperature reading will rise sharply, issuing an early warning signal and providing valuable time for arranging maintenance.

[0016] Example 3: Reference Figure 4-5As another preferred embodiment of this utility model, the difference from embodiment 1 is that the top straight wall section 6 of the cooling wall includes a first cooling wall 61, a second cooling wall 62 connected to the first cooling wall 61, a chamber 63 between the first cooling wall 61 and the second cooling wall 62, and a cooling pipe 7 connected inside the chamber 63. Both the first cooling wall 61 and the second cooling wall 62 are copper-chromium-zirconium alloy cooling walls. The contact points of the first cooling wall 61 and the second cooling wall 62 are fixedly connected with interlocking teeth 64. The cooling pipe 7 contacts the first cooling wall 61 and the second cooling wall 62. The interlocking teeth 64 seal the contact points of the first cooling wall 61 and the second cooling wall 62, thereby slowing down the corrosion rate at the contact points of the first cooling wall 61 and the second cooling wall 62.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A water-cooled cooling system for the cooling wall inside a rich slag furnace, comprising a straight wall section (1) at the bottom of the cooling wall, characterized in that, in: The upper end of the bottom straight wall section (1) of the cooling wall is sequentially connected to the lower section (2) of the inner inclined wall, the upper section (3) of the inner inclined wall, the lower section (4) of the outer inclined wall, the upper section (5) of the outer inclined wall, and the top straight wall section (6) of the cooling wall. Cooling pipes (7) are fixedly connected inside the bottom straight wall section (1), the lower section (2) of the inner inclined wall, the upper section (3) of the inner inclined wall, the lower section (4) of the outer inclined wall, the upper section (5) of the outer inclined wall, and the top straight wall section (6) of the cooling wall. A first thermometer (8) is fixedly connected to the inlet of each cooling pipe (7), and a second thermometer (9) is fixedly connected to the outlet of each cooling pipe (7).

2. The water-cooled cooling system for the inner cooling wall of the rich slag furnace according to claim 1, characterized in that, The bottom straight section (1), the lower section of the inner inclined wall (2), the upper section of the inner inclined wall (3), the lower section of the outer inclined wall (4), the upper section of the outer inclined wall (5), and the top straight section (6) of the cooling wall are all provided with slots (10), and each slot (10) is connected to an embedded alarm thermocouple (11).

3. The water-cooled cooling system for the inner cooling wall of the rich slag furnace according to claim 1, characterized in that, The top straight wall section (6) of the cooling wall includes a first cooling wall (61), a second cooling wall (62) is connected to the first cooling wall (61), and a chamber (63) is provided between the first cooling wall (61) and the second cooling wall (62), and a cooling pipe (7) is connected inside the chamber (63).

4. The water-cooled cooling system for the inner cooling wall of the rich slag furnace according to claim 3, characterized in that, Both the first cooling wall (61) and the second cooling wall (62) are copper-chromium-zirconium alloy cooling walls.

5. The water-cooled cooling system for the inner cooling wall of the rich slag furnace according to claim 4, characterized in that, The first cooling wall (61) and the second cooling wall (62) are both fixedly connected with meshing teeth (64).

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