Fixed anode furnace top adjustable structure

Abstract

The utility model discloses a fixed anode furnace top adjustable structure which comprises a connecting assembly arranged on a fixed anode furnace top, a supporting assembly and an adjusting assembly, wherein the supporting assembly and the adjusting assembly are arranged on the connecting assembly. The connecting assembly comprises a cross beam arranged at the top of the fixed anode furnace and a plurality of upper longitudinal beams arranged on the cross beam; the adjusting assembly comprises bases symmetrically arranged at the two ends of the cross beam, mounting sleeves arranged on the bases and adjusting pieces arranged on the mounting sleeves; the supporting assembly is connected to the cross beam, the two ends of the cross beam penetrate through the mounting sleeves, the adjusting piece penetrates through the mounting sleeves, and a preset adjusting space is reserved between the adjusting piece and the cross beam. The thermal expansion amount of the wedge-shaped refractory bricks at the furnace top of each stage is limited within a certain range by adjusting the adjusting pieces upwards in a segmented mode, so that the wedge-shaped refractory bricks are stressed uniformly, the uniform expansion effect is achieved, the situation that the furnace top collapses due to the fact that local furnace top bricks are disengaged due to too large deformation amount is avoided, and the service life of the furnace top is prolonged. And the service life of the furnace top is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the field of recycled copper refining, in particular to an adjustable structure of a fixed anode furnace top. Background Art

[0002] As a traditional copper refining equipment, the fixed anode furnace has the advantages of stable structure, strong practicality and simple operation.

[0003] Currently, the roof of a fixed anode furnace is an arched structure constructed with wedge-shaped refractory bricks. During furnace construction, arch foot bricks are first laid on the top of the furnace walls on both sides to form the two ends of the arched roof. Wedge-shaped refractory bricks are then laid between the arch foot bricks to form the arched roof. The stress generated by the weight of the roof refractory bricks is transferred to the furnace wall columns through the arch foot, thus maintaining the stability of the furnace roof structure.

[0004] However, before production begins, the furnace needs to be baked, slowly raising the furnace temperature to around 1300°C using fuel to maintain normal production. During this process, the furnace roof refractory bricks expand due to heat, generating upward shear forces between the bricks. This causes misalignment between the wedge-shaped refractory bricks and makes them prone to falling off. Furthermore, during oxygen-enriched combustion within the furnace, varying flame temperatures cause uneven expansion of various parts of the furnace roof, leading to significant deformation of some of the roof bricks. After a period of operation, the furnace roof is prone to partial detachment of roof bricks. In severe cases, this can cause entire layers of roof bricks to fall off, forcing production to be shut down for maintenance, and impacting the overall life of the fixed anode furnace. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide an adjustable structure for the roof of a fixed anode furnace, which aims to solve the problem that when the temperature of the current fixed anode furnace rises, the refractory bricks on the roof expand unevenly due to heat, and at the same time generate upward shear force, which makes it easy for local roof bricks to detach, or even the entire layer of roof bricks to fall off.

[0006] To achieve the above-mentioned object, the present invention is implemented through the following technical solutions: an adjustable structure for the top of a fixed anode furnace, the adjustable structure for the top of a fixed anode furnace comprising a connecting assembly provided on the top of the fixed anode furnace, a supporting assembly provided on the connecting assembly, and an adjusting assembly;

[0007] A connecting assembly comprising a crossbeam provided at the top of the fixed anode furnace and a plurality of upper longitudinal beams provided on the crossbeam;

[0008] An adjustment assembly, comprising bases symmetrically arranged at both ends of the beam, a mounting sleeve arranged on the base, and an adjustment member arranged on the mounting sleeve;

[0009] The supporting assembly is connected to the crossbeam, both ends of the crossbeam are inserted into the mounting sleeve, the adjusting member passes through the mounting sleeve, and a preset adjustment space is reserved between the adjusting member and the crossbeam.

[0010] In summary, according to the adjustable structure of the furnace top of a fixed anode furnace provided by the utility model, the cross beam is passed through the mounting sleeves at both ends, and the adjusting member is adjusted so as not to contact the cross beam, and a preset adjustment space is reserved in the mounting sleeve. When the temperature of the fixed anode furnace rises, the wedge-shaped refractory bricks at part of the furnace top expand and deform, thereby lifting the support assembly and driving the cross beam upward. When the cross beam moves upward and abuts against the lower end of the adjusting member, the support assembly cannot continue to move upward, thereby preventing the wedge-shaped refractory bricks from continuing to expand and deform. Under the restrictive action of the support assembly, the wedge-shaped refractory bricks at the furnace top expand and deform. The bricks transform from local deformation to overall deformation, thereby achieving a uniform expansion effect. When the wedge-shaped refractory bricks at the furnace roof expand as a whole to the point where they are again against the supporting components, the adjusting piece is adjusted upwards so that the lower end of the adjusting piece is 2 cm higher than the beam again. Similarly, by adjusting the adjusting piece upwards in sections, the thermal expansion of the wedge-shaped refractory bricks at the furnace roof at each stage is limited to a certain range, thereby making the wedge-shaped refractory bricks evenly stressed and achieving a uniform expansion effect, thus avoiding the situation where the furnace roof collapses due to excessive deformation of local furnace roof bricks and their detachment, thereby greatly extending the service life of the furnace roof.

[0011] Specifically, the connection assembly includes a crossbeam mounted on the top of the fixed anode furnace and several upper longitudinal beams mounted on the crossbeam. The upper longitudinal beams are used to connect to the support assembly. The adjustment assembly includes bases symmetrically mounted at both ends of the crossbeam, mounting sleeves mounted on the bases, and adjustment members mounted on the mounting sleeves. The support assembly is connected to the crossbeam, and both ends of the crossbeam are inserted into the mounting sleeves. By rotating the adjustment members, the depth of the insertion into the mounting sleeves is adjusted to reserve a preset adjustment space, thereby achieving segmented adjustment of the support assembly, controlling the expansion range of each stage of the wedge-shaped refractory bricks, and preventing uneven expansion of the wedge-shaped refractory bricks at high temperatures, which may cause partial detachment of the furnace roof bricks, or even the shedding of an entire layer of furnace roof bricks.

[0012] According to one aspect of the above technical solution, the support assembly includes a support rod vertically connected to the side of the crossbeam close to the wedge-shaped refractory brick, a lower longitudinal beam arranged on the support rod away from the upper longitudinal beam, and a pressure plate attached to the wedge-shaped refractory brick, and the end of the lower longitudinal beam away from the support rod is fixedly connected to the pressure plate.

[0013] According to one aspect of the above technical solution, the upper longitudinal beams and the lower longitudinal beams at both ends of the same support rod are paired and arranged on the same side of the support rod.

[0014] According to one aspect of the above technical solution, the pressing plate is bent toward a side close to the crossbeam to form an arched fitting surface, and the wedge-shaped refractory bricks are fitted to the arched fitting surface.

[0015] According to one aspect of the above technical solution, a heat-insulating layer is further provided on the arched fitting surface.

[0016] According to one aspect of the above technical solution, the cross beam, the upper longitudinal beam, and the lower longitudinal beam are all steel channels.

[0017] According to one aspect of the above technical solution, an installation cavity is opened inside the base along the installation direction of the beam, and the height of the installation cavity is greater than the height of the beam.

[0018] According to one aspect of the above technical solution, the height of the installation cavity is 10 cm-20 cm higher than the height of the beam.

[0019] According to one aspect of the above technical solution, the adjusting member and the mounting sleeve are movably connected via threads.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the adjustable structure of the fixed anode furnace top in one embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the assembly of the adjustable structure and the pressure plate of the fixed anode furnace roof in one embodiment of the present invention.

[0024] Component symbol description:

[0025] Connecting assembly 100, cross beam 110, upper longitudinal beam 120, adjusting assembly 200, base 210, mounting sleeve 220, adjusting member 230, supporting assembly 300, supporting rod 310, pressing plate 320, lower longitudinal beam 330, wedge-shaped refractory brick 400, and thermal insulation layer 500. DETAILED DESCRIPTION

[0026] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be an element centered thereon. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions used herein are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. A person of ordinary skill in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0029] See also Figure 1-Figure 2 , which is a schematic diagram of an adjustable structure for a fixed anode furnace roof provided in one embodiment of the present invention, the adjustable structure for a fixed anode furnace roof comprises a connecting assembly 100 provided on the fixed anode furnace roof, a supporting assembly 300 provided on the connecting assembly 100, and an adjusting assembly 200, wherein:

[0030] To prevent the wedge-shaped refractory bricks 400 from falling off during the anode furnace heating process, some organizations have implemented measures to address this issue. These include using chains on the side walls of the furnace roof to suspend the roof and increase structural stability, or adding a cooling water circulation system to the anode furnace roof to dissipate heat. However, the wedge-shaped refractory bricks 400 on the furnace roof will still expand due to heat, increasing local deformation. When the local expansion reaches a certain level, the bricks may fall off, shortening the furnace lifespan. Increasing the circulation of cooling water will also result in heat loss, affecting the energy consumption of the anode furnace. None of these improvements have effectively resolved the issue of wedge-shaped refractory bricks 400 falling off in the anode furnace.

[0031] Based on this, the present invention takes another approach by controlling the thermal expansion range of the wedge-shaped refractory bricks 400 in stages to ensure that the deformation is within a controllable range and avoid the wedge-shaped refractory bricks 400 from falling off. In this embodiment, the crossbeam 110 and the pressure plate 320 are arranged in the same direction.

[0032] To provide support, the connection assembly 100 includes a crossbeam 110 disposed at the top of the stationary anode furnace and a plurality of upper longitudinal beams 120 disposed on the crossbeam 110. It is worth noting that one upper longitudinal beam 120 of the connection assembly 100 and one lower longitudinal beam 330 of the support assembly 300 are used in pairs to enhance the connection stability between the support assembly 300 and the crossbeam 110.

[0033] Furthermore, to achieve phased control of the expansion range of the wedge-shaped refractory bricks 400, adjustment assemblies 200 are symmetrically positioned at both ends of the beam 110. The adjustment assembly 200 comprises a base 210, a mounting sleeve 220 disposed on the base 210, and an adjustment member 230 disposed on the side of the mounting sleeve 220 away from the base 210. To accommodate the beam 110, a mounting cavity is defined along the length of the mounting sleeve 220, forming a "return" cavity on the side of the mounting sleeve 220. The two ends of the beam 110 extend through the mounting cavity.

[0034] In order to ensure that the beam 110 moves only in the up and down direction in the installation cavity, the width of the installation cavity can be set to be equal to the width of the beam 110 to prevent the beam 110 from shaking in the installation cavity and facilitate the vertical movement of the beam 110.

[0035] For the purpose of adjustment, the adjusting piece 230 on the mounting sleeve 220 can be movably connected to the mounting sleeve 220 through a threaded connection so as to be used to press against the upper end of the beam 110, thereby ensuring that when the wedge-shaped refractory brick 400 is thermally expanded and drives the beam 110 to move upward, the upper end of the beam 110 presses against the lower end of the adjusting piece 230, thereby ensuring the expansion range of the wedge-shaped refractory brick 400 in the current stage.

[0036] Preferably, in order to achieve multi-stage control of the wedge-shaped refractory bricks 400, the height of the installation cavity in this embodiment is greater than the height of the beam 110, and the height difference is about 10cm-20cm. Because in this embodiment, the adjustment amount of the adjustment member 230 in each stage only makes the bottom end of the adjustment member 230 located about 2cm from the upper end of the beam 110 (that is, the preset adjustment space reserved), to ensure that the expansion of the wedge-shaped refractory bricks 400 does not exceed the controllable range, thereby preventing the wedge-shaped refractory bricks 400 from falling off.

[0037] To achieve support, the support assembly 300 includes a support rod 310 vertically connected to the side of the crossbeam 110 near the wedge-shaped refractory bricks 400, a lower longitudinal beam 330 located on the support rod 310 away from the upper longitudinal beam 120, and a pressure plate 320 attached to the wedge-shaped refractory bricks 400. The end of the support rod 310 away from the crossbeam 110 is fixedly connected to the pressure plate 320. To strengthen the stability of the connection between the support rod 310 and the crossbeam 110 and the pressure plate 320, the upper longitudinal beam 120 and the lower longitudinal beam 330 at both ends of the same support rod 310 are paired and located on the same side of the support rod 310. This allows the wedge-shaped refractory bricks 400 to expand due to heat and push up the pressure plate 320, effectively transferring stress to the crossbeam 110 and ensuring the support performance of the support rod 310. In this embodiment, the cross beam 110, the upper longitudinal beam 120, and the lower longitudinal beam 330 are all channel steels, so the connection method between the upper longitudinal beam 120 and the cross beam 110, the connection method between the lower longitudinal beam 330 and the pressure plate 320, and the connection method between the support rod 310 and the upper longitudinal beam 120 and the lower longitudinal beam 330 can be connected by fasteners or welding.

[0038] According to one aspect of the above technical solution, because the pressure plate 320 in this embodiment is curved toward the side closest to the crossbeam 110 to form an arched contact surface, and the wedge-shaped refractory bricks 400 are attached to this arched contact surface, the arched pressure plate 320 has excellent bearing capacity and durability, relatively low maintenance and repair costs, an aesthetically pleasing appearance, and a relatively simple structure. When the wedge-shaped refractory bricks 400 are heated, the upward shear force generated between the bricks is transmitted through the pressure plate 320 to the support rods 310, thereby lifting the crossbeam 110 upward.

[0039] It should be emphasized that, since the materials used for the cross beam 110, the upper longitudinal beam 120, the lower weight and the support rod 310 in this embodiment are all steel, an insulation layer 500 is also provided between the pressure plate 320 and the wedge-shaped refractory brick 400 to reduce heat loss in the furnace and reduce the impact of high temperature on steel, thereby ensuring the normal operation of the adjustable structure.

[0040] In summary, according to the adjustable structure of the furnace top of a fixed anode furnace provided by the utility model, the cross beam is passed through the mounting sleeves at both ends, and the adjusting member is adjusted so as not to contact the cross beam, and a preset adjustment space is reserved in the mounting sleeve. When the temperature of the fixed anode furnace rises, the wedge-shaped refractory bricks at part of the furnace top expand and deform, thereby lifting the support assembly and driving the cross beam upward. When the cross beam moves upward and abuts against the lower end of the adjusting member, the support assembly cannot continue to move upward, thereby preventing the wedge-shaped refractory bricks from continuing to expand and deform. Under the restrictive action of the support assembly, the wedge-shaped refractory bricks at the furnace top expand and deform. The bricks transform from local deformation to overall deformation, thereby achieving a uniform expansion effect. When the wedge-shaped refractory bricks at the furnace roof expand as a whole to the point where they are again against the supporting components, the adjusting piece is adjusted upwards so that the lower end of the adjusting piece is 2 cm higher than the beam again. Similarly, by adjusting the adjusting piece upwards in sections, the thermal expansion of the wedge-shaped refractory bricks at the furnace roof at each stage is limited to a certain range, thereby making the wedge-shaped refractory bricks evenly stressed and achieving a uniform expansion effect, thus avoiding the situation where the furnace roof collapses due to excessive deformation of local furnace roof bricks and their detachment, thereby greatly extending the service life of the furnace roof.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0042] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A fixed anode furnace roof adjustable structure, characterized in that: The fixed anode furnace top adjustable structure includes a connecting assembly provided on the fixed anode furnace top, a supporting assembly and an adjusting assembly provided on the connecting assembly; A connecting assembly comprising a crossbeam provided at the top of the fixed anode furnace and a plurality of upper longitudinal beams provided on the crossbeam; An adjustment assembly, comprising bases symmetrically arranged at both ends of the beam, a mounting sleeve arranged on the base, and an adjustment member arranged on the mounting sleeve; The supporting assembly is connected to the crossbeam, both ends of the crossbeam are inserted into the mounting sleeve, the adjusting member passes through the mounting sleeve, and a preset adjustment space is reserved between the adjusting member and the crossbeam.

2. The adjustable structure of the fixed anode furnace roof according to claim 1, characterized in that: The support assembly includes a support rod vertically connected to the side of the crossbeam close to the wedge-shaped refractory brick, a lower longitudinal beam arranged on the support rod away from the upper longitudinal beam, and a pressure plate attached to the wedge-shaped refractory brick, and the end of the lower longitudinal beam away from the support rod is fixedly connected to the pressure plate.

3. The adjustable structure of the fixed anode furnace roof according to claim 2, characterized in that: The upper longitudinal beams and the lower longitudinal beams at both ends of the same support rod are arranged in pairs on the same side of the support rod.

4. The adjustable structure of the fixed anode furnace roof according to claim 3, characterized in that: The pressing plate is bent toward a side close to the cross beam to form an arched fitting surface, and the wedge-shaped refractory bricks are fitted to the arched fitting surface.

5. The adjustable structure of the fixed anode furnace roof according to claim 4, characterized in that: The arched fitting surface is also provided with a heat-insulating layer.

6. The adjustable structure for the top of a fixed anode furnace according to claim 5, characterized in that: The cross beam, the upper longitudinal beam, and the lower longitudinal beam are all steel channels.

7. The adjustable structure for the top of a fixed anode furnace according to claim 1, characterized in that: An installation cavity is provided inside the base along the installation direction of the crossbeam, and a height of the installation cavity is greater than a height of the crossbeam.

8. The adjustable structure for the top of a fixed anode furnace according to claim 7, characterized in that: The height of the installation cavity is 10 cm to 20 cm higher than the height of the beam.

9. The adjustable structure for the top of a fixed anode furnace according to claim 1, characterized in that: The adjusting member is movably connected to the mounting sleeve via threads.

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