Fixed anode furnace top adjustable structure

Abstract

The invention discloses a furnace top adjustable structure of a fixed anode furnace. The furnace top adjustable structure comprises a connecting assembly arranged on the furnace top of the fixed anode furnace, a supporting assembly arranged on the connecting assembly and an adjusting 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 invention relates to the field of secondary copper refining, and 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] At present, the existing fixed anode furnace has an arched furnace roof built with wedge-shaped refractory bricks. When building the furnace, arch foot bricks are first used to build the two ends of the arched furnace roof on the top of the furnace walls on both sides, and wedge-shaped refractory bricks are used to build the arched furnace roof between the arch foot bricks. The stress generated by the deadweight of the furnace roof refractory bricks is transmitted to the furnace wall columns through the arch feet, thereby maintaining the stability of the furnace roof structure.

[0004] However, before going into production, the furnace body needs to be baked, and the furnace temperature is slowly raised to about 1300℃ through fuel to maintain normal production. In this process, the refractory bricks on the furnace roof expand due to heat, and upward shear force is generated between the bricks, resulting in misalignment between the wedge-shaped refractory bricks, which is prone to brick falling off. At the same time, when the furnace is oxygen-enriched, the different flame temperatures cause uneven expansion of various parts of the furnace roof, resulting in large deformation of local furnace roof bricks. After running for a period of time, the furnace roof is prone to partial detachment of furnace roof bricks. In severe cases, it will cause the entire layer of furnace roof bricks to fall off, resulting in forced shutdown and maintenance accidents, affecting the overall furnace life of the fixed anode furnace. Summary of the invention

[0005] Based on this, the purpose of the present invention 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 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 arranged on the top of the fixed anode furnace, a supporting assembly and an adjusting assembly arranged on the connecting assembly;

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

[0008] An adjustment component, comprising a base 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] Wherein, 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 roof of a fixed anode furnace provided by the present invention, by passing the crossbeam through the mounting sleeves at both ends, and adjusting the adjusting piece so as not to contact the crossbeam, and by reserving a preset adjustment space in the mounting sleeve, when the temperature of the fixed anode furnace rises, the wedge-shaped refractory bricks at part of the furnace roof expand and deform, thereby lifting the support assembly and driving the crossbeam upward. When the crossbeam moves upward to abut against the lower end of the adjusting piece, the support assembly cannot continue to move upward, thereby preventing the wedge-shaped refractory bricks from continuing to expand and deform. Under the limiting action of the support assembly, the wedge-shaped refractory bricks at the furnace roof From local deformation to overall deformation, the effect of uniform expansion is achieved. When the wedge-shaped refractory bricks at the furnace roof expand as a whole to collide with the supporting assembly again, the adjusting piece is adjusted upward to make the lower end of the adjusting piece higher than the beam by 2 cm again; by analogy, the thermal expansion of the wedge-shaped refractory bricks at the furnace roof at each stage is limited to a certain range by adjusting the adjusting piece in sections, so that the wedge-shaped refractory bricks are evenly stressed and the effect of uniform expansion is achieved, avoiding the detachment of the local furnace roof bricks due to excessive deformation and the resulting collapse of the furnace roof, thereby greatly extending the service life of the furnace roof.

[0011] Specifically, the connection assembly includes a crossbeam arranged at the top of the fixed anode furnace, and a plurality of upper longitudinal beams arranged on the crossbeam, and the upper longitudinal beams are used to connect the support assembly. The adjustment assembly includes a base symmetrically arranged at both ends of the crossbeam, a mounting sleeve arranged on the base, and an adjustment member arranged on the mounting sleeve. The support assembly is connected to the crossbeam, and both ends of the crossbeam are inserted into the mounting sleeve, and the depth of the adjusting member inserted into the mounting sleeve is rotated to reserve a preset adjustment space, thereby realizing segmented adjustment of the support assembly, controlling the expansion range of each stage of the wedge-shaped refractory bricks, and avoiding the uneven expansion of the wedge-shaped refractory bricks at high temperatures, resulting in partial detachment of the furnace roof bricks, or even the phenomenon of the entire layer of furnace roof bricks falling off.

[0012] According to one aspect of the above technical solution, the support assembly includes a support rod vertically connected to the side of the cross beam 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 one 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 arranged in pairs 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 cross beam 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 also 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, a mounting cavity is provided inside the base along the mounting direction of the crossbeam, and the height of the mounting cavity is greater than the height of the crossbeam.

[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 is movably connected to the mounting sleeve via threads.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of an adjustable structure of a fixed anode furnace top in one embodiment of the present invention;

[0023] Figure 2 It 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] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[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 be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" 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 the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

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

[0030] In order to avoid the wedge-shaped refractory bricks 400 from falling off during the heating process of the anode furnace, some organizations have taken relevant measures to deal with the above problems, such as using chains on the side walls of the furnace roof to suspend the furnace roof to increase the stability of the furnace roof structure; or adding a cooling water circulation device to the anode furnace roof to achieve heat dissipation for the furnace roof. However, the wedge-shaped refractory bricks 400 on the furnace roof will still expand due to heat, and the local expansion deformation will increase. Even when the local expansion reaches a certain extent, the refractory bricks will fall off, affecting the life of the furnace; increasing the circulating cooling water will cause heat loss and affect the energy consumption of the anode furnace. These improvements cannot effectively solve the problem of the wedge-shaped refractory bricks 400 falling off in the anode furnace.

[0031] Based on this, the present invention starts from another perspective, by controlling the thermal expansion range of the wedge-shaped refractory brick 400 in stages, ensuring that the deformation is within a controllable range, and avoiding the phenomenon of the wedge-shaped refractory brick 400 falling off. In this embodiment, the crossbeam 110 and the pressure plate 320 are arranged in the same direction.

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

[0033] Furthermore, in order to achieve staged control of the expansion range of the wedge-shaped refractory bricks 400, adjustment components 200 are symmetrically provided at both ends of the beam 110. The adjustment component 200 includes a base 210, a mounting sleeve 220 provided on the base 210, and an adjustment member 230 provided on the side of the mounting sleeve 220 away from the base 210. In order to accommodate the beam 110, an installation cavity is provided on the mounting sleeve 220 along the length direction of the beam 110 to form a "return" cavity on the side of the mounting sleeve 220, and the two ends of the beam 110 respectively pass through the installation cavity.

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

[0035] For the purpose of adjustment, the adjustment member 230 on the mounting sleeve 220 can be movably connected to the mounting sleeve 220 through a thread 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 expands due to heat and drives the beam 110 to move upward, the upper end of the beam 110 presses against the lower end of the adjustment member 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. 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 (i.e., 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] In order to achieve the supporting function, the supporting assembly 300 includes a supporting rod 310 vertically connected to the side of the cross beam 110 close to the wedge-shaped refractory brick 400, a lower longitudinal beam 330 arranged on the supporting rod 310 away from the upper longitudinal beam 120, and a pressing plate 320 attached to the wedge-shaped refractory brick 400, and one end of the supporting rod 310 away from the cross beam 110 is fixedly connected to the pressing plate 320. In order to strengthen the stability of the connection between the supporting rod 310 and the cross beam 110 and the pressing plate 320, the upper longitudinal beam 120 and the lower longitudinal beam 330 at both ends of the same supporting rod 310 are arranged in pairs on the same side of the supporting rod 310, so that when the wedge-shaped refractory brick 400 expands due to heat and pushes up the pressing plate 320, it can effectively transfer stress to the cross beam 110, thereby ensuring the supporting performance of the supporting 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, since the pressing plate 320 in this embodiment is bent toward the side close to the cross beam 110 to form an arched fitting surface, and the wedge-shaped refractory brick 400 is fitted to the arched fitting surface, the arched pressing plate 320 has excellent bearing capacity, strong durability, relatively low maintenance and repair costs, beautiful appearance, and relatively simple structure. When the wedge-shaped refractory brick 400 is heated, the upward shear force generated between the brick bodies is transmitted to the support rod 310 through the pressing plate 320, thereby lifting the cross beam 110 upward.

[0039] It should be emphasized that, since in the present embodiment, the materials used for the cross beam 110, the upper longitudinal beam 120, the lower weight and the support rod 310 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 effect 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 roof of a fixed anode furnace provided by the present invention, by passing the crossbeam through the mounting sleeves at both ends, and adjusting the adjusting piece so as not to contact the crossbeam, and by reserving a preset adjustment space in the mounting sleeve, when the temperature of the fixed anode furnace rises, the wedge-shaped refractory bricks at part of the furnace roof expand and deform, thereby lifting the support assembly and driving the crossbeam upward. When the crossbeam moves upward to abut against the lower end of the adjusting piece, the support assembly cannot continue to move upward, thereby preventing the wedge-shaped refractory bricks from continuing to expand and deform. Under the limiting action of the support assembly, the wedge-shaped refractory bricks at the furnace roof From local deformation to overall deformation, the effect of uniform expansion is achieved. When the wedge-shaped refractory bricks at the furnace roof expand as a whole to collide with the supporting assembly again, the adjusting piece is adjusted upward to make the lower end of the adjusting piece higher than the beam by 2 cm again; by analogy, the thermal expansion of the wedge-shaped refractory bricks at the furnace roof at each stage is limited to a certain range by adjusting the adjusting piece in sections, so that the wedge-shaped refractory bricks are evenly stressed and the effect of uniform expansion is achieved, avoiding the detachment of the local furnace roof bricks due to excessive deformation and the resulting collapse of the furnace roof, thereby greatly extending the service life of the furnace roof.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A fixed anode furnace roof adjustable structure, characterized in that: The fixed anode furnace top adjustable structure comprises a connecting assembly arranged on the fixed anode furnace top, a supporting assembly and an adjusting assembly arranged on the connecting assembly; A connecting assembly, comprising a crossbeam arranged at the top of the fixed anode furnace, and a plurality of upper longitudinal beams arranged on the crossbeam; An adjustment component, comprising a base symmetrically arranged at both ends of the beam, a mounting sleeve arranged on the base, and an adjustment member arranged on the mounting sleeve; Wherein, 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 top of a fixed anode furnace according to claim 1 is characterized in that: The support assembly includes a support rod vertically connected to the side of the cross beam 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 one end of the lower longitudinal beam away from the support rod is fixedly connected to the pressure plate.

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

4. The adjustable structure of the top of a fixed anode furnace according to claim 3 is 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 top of a fixed anode furnace according to claim 4 is characterized in that: The arched fitting surface is also provided with a heat-insulating layer.

6. The adjustable structure of 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 of 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 the height of the installation cavity is greater than the height of the crossbeam.

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

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

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