An erosion-resistant, complete cooling jacket for an anode furnace door

Abstract

The utility model provides a kind of anode furnace door erosion-resistant complete cooling jacket, it is related to anode furnace technical field, including the top copper cooling jacket being arranged at furnace door, two side copper cooling jackets, two side copper cooling jackets are respectively with the abutment of both ends of top copper cooling jacket, first water channel and second water channel are all equipped in top copper cooling jacket and side copper cooling jacket, first water channel in side copper cooling jacket is set along the circumferential of side copper cooling jacket close to furnace body side, second water channel in side copper cooling jacket is set in the surrounding area of first water channel in a meandering manner, first water channel and second water channel in top copper cooling jacket are set in a meandering manner side by side. The utility model can quickly transfer the heat absorbed at furnace door to cooling medium, can effectively improve the cooling effect at furnace door, reduce furnace door temperature and prolong service life, and copper material has good corrosion resistance, can resist the corrosion of corrosive gas and molten slag generated in smelting process.

Description

Technical Field

[0001] This utility model relates to the field of anode furnace technology, and in particular to a corrosion-resistant cooling water jacket for anode furnace doors. Background Technology

[0002] The cooling water jacket of the anode furnace door is a key component in non-ferrous metal smelting, used to protect the furnace door structure. It achieves heat exchange through internal circulating cooling water to resist the erosion of high-temperature melt, slag, and flue gas. This device must simultaneously possess high thermal conductivity, corrosion resistance, and structural stability, and its performance directly affects the energy consumption, production safety, and operating efficiency of the anode furnace.

[0003] Currently, forged steel drilled cooling water jackets are commonly used. The main body is a forged steel block that is machined to form internal cooling water channels. The surface is protected against corrosion by overlaying a corrosion-resistant layer or spraying a protective coating. The cooling water channels are usually straight drilled structures that rely on an external water pump to force the cooling water to circulate. The seals are mostly made of rubber rings or metal gaskets and bolts. Some designs add heat insulation plates in high-temperature areas to reduce the heat load.

[0004] However, forged steel drilled cooling water jackets have the following drawbacks: First, insufficient cooling efficiency, specifically manifested in the monotonous flow organization of the straight water channels, resulting in uneven heat exchange between low-temperature and high-temperature zones, and local overheating that can easily lead to thermal fatigue cracking of the base material; Second, poor corrosion resistance, specifically manifested in the mismatch between the thermal expansion coefficients of the forged steel base material and the protective layer, leading to coating peeling at high temperatures, accelerating melt penetration corrosion, and easy scaling on the inner wall of the drilled holes, further reducing thermal conductivity; Third, low sealing reliability, specifically manifested in the tendency of traditional sealing structures to age and fail under thermal cycling conditions, with the risk of leakage potentially triggering high-temperature melt explosions; Fourth, high maintenance costs, specifically manifested in the short average lifespan of the water jacket, with frequent replacements leading to production stoppage losses and environmental pollution from discarded components. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a corrosion-resistant cooling water jacket for an anode furnace door, which aims to solve the technical problem of insufficient corrosion resistance and heat resistance of existing anode furnace doors.

[0006] To achieve the above objectives, this utility model proposes a corrosion-resistant cooling water jacket for an anode furnace door, comprising a top copper cooling water jacket and two side copper cooling water jackets located at the furnace door. The two side copper cooling water jackets are arranged opposite each other and abut against both ends of the top copper cooling water jacket. Both the top copper cooling water jacket and the side copper cooling water jackets are provided with a first water channel and a second water channel. The first water channel in the side copper cooling water jacket is arranged circumferentially along the side of the side copper cooling water jacket near the furnace body, and the second water channel in the side copper cooling water jacket meanders within the area surrounded by the first water channel. The first water channel and the second water channel in the top copper cooling water jacket are arranged side by side and meander. At least on the outer circumferential surface of the side copper cooling water jacket and the top copper cooling water jacket near the furnace body, a wear-resistant and heat-resistant layer is provided.

[0007] In addition, the corrosion-resistant cooling water jacket for the anode furnace door described above according to this utility model may also have the following additional technical features: Furthermore, both ends of the first and second water channels in the top copper cooling water jacket are far from the furnace body side.

[0008] Furthermore, the first water channel and the second water channel in the top copper cooling water jacket are respectively located on both sides of the length direction of the top copper cooling water jacket, and the two ends of the first water channel and the second water channel in the top copper cooling water jacket are aligned.

[0009] Furthermore, the portion of the top copper cooling water jacket away from the furnace body has at least one row of spaced first bolt fixing holes along its length.

[0010] Furthermore, the first bolt fixing holes are provided in at least two rows, with the first bolt fixing holes in adjacent rows being staggered, and all the first bolt fixing holes in the same row being sandwiched between the first water channel and / or the second water channel in the top copper cooling water jacket.

[0011] Furthermore, both ends of the first and second water channels in the side copper cooling water jacket are far from the furnace body side.

[0012] Furthermore, the first and second water channels in the side copper cooling water jacket are respectively located at the upper and lower ends of the outer end face of the side copper cooling water jacket.

[0013] Furthermore, the portion of the side copper cooling water jacket away from the furnace body has a row of spaced second bolt fixing holes along its length.

[0014] Furthermore, all the second bolt fixing holes are sandwiched between the first water channel and / or the second water channel in the side copper cooling water jacket.

[0015] Furthermore, both the first waterway and the second waterway are copper pipes, and each end of the first waterway and the second waterway has an inlet connector and an outlet connector respectively.

[0016] The beneficial effects of this utility model include at least the following: the double water channels arranged in the top and side copper cooling water jackets form a wide-coverage cooling network. Compared with straight water channels, the heat exchange between the low-temperature and high-temperature zones is more uniform. At the same time, the meandering layout of the water channels in the jackets enhances the turbulence effect, which can improve the heat exchange efficiency and effectively avoid thermal fatigue cracking of the base material caused by local overheating. In addition, since the water jackets use copper-based materials instead of traditional forged steel, they have a high thermal conductivity and can maintain stable thermal conductivity for a long time. Furthermore, the wear-resistant and heat-resistant layer set on the outer peripheral surface of the cooling water jackets near the furnace body can improve the corrosion resistance of copper, thereby enabling the cooling water jackets to resist the scouring and erosion of corrosive gases and slag generated during the smelting process, extending the life of the water jackets and reducing the risk of melt penetration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the corrosion-resistant cooling water jacket for the anode furnace door in one embodiment of the present invention; Figure 2 This is a schematic diagram of the top copper cooling water jacket in one embodiment of the present invention; Figure 3 This is a schematic diagram of the side copper cooling water jacket in one embodiment of the present invention; Figure 4 This is a first-view structural schematic diagram of the interior of the top copper cooling water jacket in one embodiment of the present invention. Figure 5 This is a structural schematic diagram of the interior of the top copper cooling water jacket in one embodiment of the present invention from a second perspective. Figure 6 This is a third-view structural diagram of the interior of the top copper cooling water jacket in one embodiment of the present invention. Figure 7 This is a schematic diagram of the internal structure of the side copper cooling water jacket in one embodiment of the present invention; Explanation of key component symbols: Furnace shell 100, top copper cooling water jacket 200, first bolt fixing hole 210, side copper cooling water jacket 300, second bolt fixing hole 310, first water channel 400, second water channel 500, wear-resistant and heat-resistant layer 600; The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please see Figures 1 to 7 This embodiment provides a corrosion-resistant cooling water jacket for an anode furnace door. The furnace shell 100 of the anode furnace is equipped with a furnace door. The cooling water jacket includes a top copper cooling water jacket 200 and two side copper cooling water jackets 300 located at the furnace door. Specifically, the two side copper cooling water jackets 300 are arranged opposite each other, and the two side copper cooling water jackets 300 abut against the left and right ends of the top copper cooling water jacket 200, respectively. In this way, the top copper cooling water jacket 200 can horizontally cover the area above the furnace door, while the side copper cooling water jackets 300 can vertically cover the left and right sides of the furnace door. Thus, the two side copper cooling water jackets 300 and the top copper cooling water jacket form a cooling frame around the furnace door through end abutment, and finally achieve cooling by utilizing the high thermal conductivity of copper.

[0022] Meanwhile, in order to efficiently cool the furnace door and protect the copper cooling water jacket from high-temperature erosion, a first water channel 400 and a second water channel 500 are provided inside both the top copper cooling water jacket 200 and the side copper cooling water jacket 300. During use, a cooling medium, such as cooling water, is continuously supplied to the first water channel 400 and the second water channel 500.

[0023] Specifically, the first water channel 400a in the side copper cooling water jacket 300 is arranged circumferentially along the side of the side copper cooling water jacket 300 near the furnace body to form an outer protective cooling zone. The second water channel 500a in the side copper cooling water jacket 300 meanders within the area surrounded by the first water channel 400a. This enhances heat exchange efficiency by extending the flow channel and increasing turbulence within the area surrounded by the first water channel 400a. The first water channel 400b and the second water channel 500b in the top copper cooling water jacket 200 are arranged side by side in a meandering manner, thus forming a dense cooling coverage surface. Specifically, the synergistic operation of the two water channels expands the cooling coverage area, while the side-by-side meandering design ensures a uniform temperature distribution and avoids localized overheating.

[0024] In this embodiment, the dual-channel design can form a redundant cooling mechanism and a heat load diversion strategy, which can effectively prevent the risk of systemic ablation caused by the failure of a single channel.

[0025] Furthermore, to enable the cooling water jackets to resist the erosion and corrosion of corrosive gases and slag generated during the smelting process, a wear-resistant and heat-resistant layer 600 is provided on the outer peripheral surface of the side copper cooling water jacket 300 and the top copper cooling water jacket 200 near the furnace body. Alternatively, the wear-resistant and heat-resistant layer 600 can be provided on the entire outer peripheral surface of the side copper cooling water jacket 300 and the top copper cooling water jacket 200. For example, as... Figures 4 to 6 A wear-resistant and heat-resistant layer 600 is welded to the outer circumferential surface of the top copper cooling water jacket near the furnace body. Optionally, the wear-resistant and heat-resistant layer 600 can be made of a nickel-based heat-resistant alloy.

[0026] In some alternative embodiments, such as Figure 4 As shown, both ends of the first water channel 400b and the second water channel 500b in the top copper cooling water jacket 200 are far away from the furnace body. This arrangement allows the inlet and outlet ends of the first water channel 400b and the second water channel 500b to be located on the outside of the furnace body (not the high-temperature radiation surface), avoiding direct thermal shock of high-temperature gas / molten material to the pipe interface.

[0027] In some alternative embodiments, such as Figure 4 As shown, the two ends of the first water channel 400b and the second water channel 500b in the top copper cooling water jacket 200 are respectively located on both sides of the length direction of the top copper cooling water jacket 200 to avoid interfering with the furnace opening operation. Furthermore, the two ends of the first water channel 400 and the second water channel 500 in the top copper cooling water jacket 200 are aligned. Such aligned inlet and outlet ports make the flow resistance of the two water channels relatively symmetrical (the number of pipe bends is consistent and the length is approximately consistent), avoiding the flow deviation caused by layout differences from affecting heat dissipation.

[0028] In some alternative embodiments, such as Figure 2 , Figure 4As shown, the portion of the top copper cooling water jacket 200 away from the furnace body has at least one row of spaced-apart first bolt fixing holes 210 along its length. During assembly, the top copper cooling water jacket 200 is installed on the furnace shell 100 by the engagement of fasteners with the first bolt fixing holes 210. In this embodiment, by spaced-apart bolt fixing holes in the non-high-temperature area away from the furnace body, high-reliability installation and thermal deformation compensation of the top copper cooling water jacket 200 are achieved.

[0029] In some alternative embodiments, such as Figure 4 As shown, the first bolt fixing holes 210 are provided in at least two rows, and the first bolt fixing holes 210 in adjacent rows are staggered to avoid the large stress caused by the concentrated first bolt fixing holes 210 during assembly, which could lead to the copper cooling water jacket breaking. At the same time, it avoids thermal stress at the first bolt fixing holes 210 from causing the copper cooling water jacket to break. The first bolt and all the first bolt fixing holes 210 in the same row are sandwiched between the first water channel 400 and / or the second water channel 500 in the top copper cooling water jacket 200.

[0030] For example, the first bolt fixing holes 210 are provided in two rows. The lower row of first bolt fixing holes 210 penetrates the body of the copper cooling water jacket and is located between the first water channel 400 and the second water channel 500 in the top copper cooling water jacket 200. The upper row of first bolt fixing holes 210 penetrates the body of the copper cooling water jacket and is located between the two rows of first water channels 400 in the top copper cooling water jacket 200.

[0031] In some alternative embodiments, such as Figure 5 As shown, both ends of the first water channel 400a and the second water channel 500a in the side copper cooling water jacket 300 are far away from the furnace body. This arrangement allows the inlet and outlet ends of the first water channel 400a and the second water channel 500a to be located on the outside of the furnace body (not the high-temperature radiation surface), avoiding direct thermal shock of high-temperature gas / molten material to the pipe interface.

[0032] In some alternative embodiments, such as Figure 7 As shown, the first water channel 400a and the second water channel 500a in the side copper cooling water jacket 300 are respectively located at the upper and lower ends of the outer end face of the side copper cooling water jacket 300, so as to avoid interfering with the furnace opening operation and to avoid interfering with the assembly between the side copper cooling water jacket 300 and the top copper cooling water jacket 200.

[0033] In some alternative embodiments, such as Figure 3 , Figure 7As shown, the side copper cooling water jacket 300, located away from the furnace body, has a row of spaced-apart second bolt fixing holes 310 along its length. During assembly, the side copper cooling water jacket 300 is installed on the furnace shell 100 by fasteners engaging with the second bolt fixing holes 310. In this embodiment, by spaced-apart bolt fixing holes in the non-high-temperature area away from the furnace body, high-reliability installation and thermal deformation compensation of the side copper cooling water jacket 300 are achieved.

[0034] In some alternative embodiments, such as Figure 7 As shown, all the second bolt fixing holes 310 are sandwiched between the first water channel 400 and / or the second water channel 500 in the side copper cooling water jacket 300.

[0035] For example, the fixing holes 310 of the bottommost second bolt and the topmost second bolt penetrate the body of the copper cooling water jacket and are both located between the first water channel 400 and the second water channel 500 in the side copper cooling water jacket 300. The fixing holes 310 of the middle three second bolts penetrate the body of the copper cooling water jacket and are all located between adjacent second water channels 500 in the side copper cooling water jacket 300.

[0036] In some optional embodiments, the first water channel 400 and the second water channel 500 are both copper pipes. In order to ensure that the copper cooling water jacket has a good heat dissipation effect and improve economic efficiency, preferably, in this embodiment, the copper cooling water jacket is cast using a process of embedding pure copper pipes. Specifically, the copper pipes are first fixed in the mold cavity, and after being combined with the casting system, molten copper is introduced, so that the copper pipes and the cast copper undergo metallurgical bonding and are thus cast into one piece.

[0037] In addition, inlet and outlet connectors are respectively led out from both ends of the first water channel 400 and the second water channel 500. During use, the circulating cooling pump, the inlet connector, and the outlet connector are connected together through pipes and seals. Preferably, a heat insulation layer, such as a ceramic fiber heat insulation layer, can be wrapped around the inlet connector and the outlet connector to reduce the risk of seal failure at the inlet connector and the outlet connector.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the appended claims.

Claims

1. An erosion resistant, complete cooling water jacket for an anode furnace door, characterized in that, It includes a top copper cooling water jacket located at the furnace door and two side copper cooling water jackets. The two side copper cooling water jackets are arranged opposite each other and respectively abut against the two ends of the top copper cooling water jacket. Both the top copper cooling water jacket and the side copper cooling water jackets are provided with a first water channel and a second water channel. The first water channel in the side copper cooling water jacket is arranged circumferentially along the side of the side copper cooling water jacket near the furnace body, the second water channel in the side copper cooling water jacket meanders within the area surrounded by the first water channel, and the first water channel and the second water channel in the top copper cooling water jacket meander side by side. At least on the outer circumferential surface of the side copper cooling water jacket and the top copper cooling water jacket near the furnace body, a wear-resistant and heat-resistant layer is provided.

2. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 1, characterized in that, Both ends of the first and second water channels in the top copper cooling water jacket are far away from the furnace body.

3. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 2, characterized in that, The first and second water channels in the top copper cooling water jacket are respectively located on both sides of the length direction of the top copper cooling water jacket, and the two ends of the first and second water channels in the top copper cooling water jacket are aligned.

4. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 3, characterized in that, The portion of the top copper cooling water jacket away from the furnace body has at least one row of spaced first bolt fixing holes along its length.

5. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 4, characterized in that, The first bolt fixing holes are provided in at least two rows, with the first bolt fixing holes in adjacent rows being staggered, and all the first bolt fixing holes in the same row being sandwiched between the first water channel and / or the second water channel in the top copper cooling water jacket.

6. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 1, characterized in that, Both ends of the first and second water channels in the side copper cooling water jacket are far away from the furnace body.

7. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 2, characterized in that, The first and second water channels in the side copper cooling water jacket are respectively located at the upper and lower ends of the outer end face of the side copper cooling water jacket.

8. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 7, characterized in that The portion of the side copper cooling water jacket away from the furnace body has a row of spaced second bolt fixing holes along its length.

9. The erosion-resistant, complete cooling water jacket of an anode furnace door according to claim 8, characterized in that All the second bolt fixing holes are sandwiched between the first water channel and / or the second water channel in the side copper cooling water jacket.

10. The corrosion-resistant cooling water jacket for the anode furnace door according to any one of claims 1 to 9, characterized in that, Both the first waterway and the second waterway are copper pipes, and each end of the first waterway and the second waterway has an inlet connector and an outlet connector respectively.

Images