Furnace surface structure of electrolytic furnace

Abstract

The utility model relates to a furnace surface structure of an electrolytic furnace, which comprises a furnace cover plate internally provided with a cooling cavity, and an imbedding hole is formed in the center of the furnace cover plate; the plurality of anode conductive assemblies are used for mounting anode plates, and the anode conductive assemblies are circumferentially arranged on the outer ring of the imbedding hole and extend to the upper part of the imbedding hole; and a positioning part corresponding to the anode conductive component is arranged on the furnace cover plate and is used for positioning and fixing the anode conductive component. The furnace cover plate has the beneficial effects that the positioning parts are arranged on the furnace cover plate to position the anode conductive components, and the mounting holes are formed in the positioning parts to fix the anode conductive components, that is, only the positioning parts and the mounting holes corresponding to the anode conductive components in number need to be arranged on the furnace cover plate; the production process and technology of the furnace cover plate are greatly simplified, and the production cost of the furnace cover plate is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of rare earth electrolysis, and in particular to the furnace surface structure of a single electrolysis furnace. Background Technology

[0002] The electrolytic process for preparing praseodymium-neodymium alloy includes: using a tungsten cathode and a graphite anode in an electrolytic furnace; adding fluorides (praseodymium-neodymium fluoride and lithium fluoride) to the furnace; heating to 1000℃~1100℃ after energizing; and maintaining this temperature for continued electrolysis. The resulting molten metal needs to be cooled to solidify into praseodymium-neodymium alloy blocks. Furthermore, impurities adhering to the praseodymium-neodymium alloy blocks must be knocked off to obtain the final praseodymium-neodymium alloy product.

[0003] For example, the Chinese utility model patent application filed by the applicant on June 26, 2024, with authorization announcement number CN222758344U, discloses a furnace body structure for an electrolytic furnace. The top plate of the electrolytic furnace is provided with multiple positive electrode conductive plates and conductive iron plates, and the conductive iron plates extend into the electrolytic cell to connect to the graphite anode. In addition, a cooling chamber is provided inside the panel assembly, and multiple support pins are provided inside the panel assembly to ensure the supporting strength of the panel assembly.

[0004] However, in the structure of the above panel, due to the large number of support pins, all of which penetrate the cooling chamber inside the panel assembly, the sealing requirements during installation are high, the installation efficiency is low, and the cost is high. In addition, since multiple positive conductive plates and conductive iron plates need to be installed, the conductive plates and conductive iron plates need to be individually positioned to ensure the installation position. Therefore, in the production process of the top panel, it is necessary to form positioning grooves or positioning pins to position the conductive components, which increases the production process and production cost of the top panel. Utility Model Content

[0005] To address the aforementioned problems in the prior art, the present invention provides a furnace surface structure for an electrolytic furnace.

[0006] The above-mentioned problems of this utility model are solved by the following technical solutions:

[0007] A furnace surface structure for an electrolytic furnace, comprising,

[0008] A furnace cover plate with an internal cooling chamber, wherein an insertion hole is provided in the center of the furnace cover plate;

[0009] Multiple anode conductive components are used to mount the anode plate. The anode conductive components are arranged in a circle around the outer ring of the insertion hole and extend above the insertion hole.

[0010] The furnace cover plate is provided with a positioning part corresponding to the anode conductive component, which is used to position and fix the anode conductive component.

[0011] By adopting the above technical solution, only positioning positions and mounting holes corresponding to the number of anode conductive components need to be set on the furnace cover plate, which greatly simplifies the production process and technology of the furnace cover plate and saves the production cost of the furnace cover plate.

[0012] A further provision of the above technical solution is that the anode conductive component includes a mounting base and a junction plate, the mounting base and the junction plate being stacked and fixed at the positioning position and fixed by the same fixing component.

[0013] A further provision of the above technical solution is that: the top surface of the furnace cover plate is an electrical contact panel, and the positioning part is a positioning groove provided on the electrical contact panel for installing the anode conductive component; the positioning groove is provided with an installation hole.

[0014] By adopting the above technical solution, the positioning groove is used to position the electrode board. The mounting base is stacked on top of the electrode board and fixed into the mounting hole by the same fixing component. The positioning groove only needs to position the electrode board, without the need to set up an additional positioning structure to position the mounting base.

[0015] By adopting the above technical solution, the anode conductive component is double-fixed by positioning groove and fixing component (such as bolt), and the superimposed design of mounting base and junction plate enhances the structural strength, making it less prone to loosening under long-term high temperature environment;

[0016] A further provision of the above technical solution is that the positioning groove is arranged radially around the insertion hole, and its outer end extends to the outer end of the conductive panel.

[0017] A further configuration of the above technical solution is as follows: the mounting base includes an electrode mounting portion extending into the insertion hole and an extension portion fixed to the power receiving panel; one end of the electrode mounting portion is configured as an arc-shaped surface, and the electrode mounting portions can be spliced ​​to form a circular electrode opening; the anode plate is fixed to the lower end face of the electrode mounting portion and extends below the electrode opening to form an electrolytic cell.

[0018] A further provision of the above technical solution is that the thickness of the junction plate is not less than the depth of the positioning groove.

[0019] By adopting the above technical solution, the thickness of the contact plate is not less than the depth of the positioning groove, ensuring full contact with the contact panel, reducing contact resistance, and improving conductivity.

[0020] A further provision of the above technical solution is that a gap is formed between two adjacent extensions, and the electrolytic cell has an air vent at the gap; a wind baffle is provided at the gap to cover the air vent.

[0021] By adopting the above technical solution, the arc-shaped surfaces of the electrode mounting part are spliced ​​to form a circular electrode opening, which has high compatibility with the electrolytic cell; wind baffles are set at the gaps of adjacent extensions to effectively shield the air leakage openings and ensure the stability of the inert gas in the electrolytic cell.

[0022] A further provision of the above technical solution is that the furnace cover plate also includes a cover plate seat located below the power connection panel, and the cooling cavity is located between the cover plate seat and the furnace cover plate; the cooling cavity is arranged in a ring around the insertion hole.

[0023] By adopting the above technical solution, the heat inside the electrolytic cell is the highest during the electrolysis process in the electrolytic furnace, and the heat gradually decreases outward in a radial pattern. In this embodiment, the cooling chamber is set as a ring structure to adapt to the temperature distribution of the electrolytic furnace, which can maximize the cooling of the electrical panel.

[0024] A further provision of the above technical solution is that a liquid guide pipe is provided inside the cooling chamber, and the liquid guide pipe is connected to an external water supply device and the cooling chamber.

[0025] A further provision of the above technical solution is that the cover plate seat also includes a support frame extending outward from the cooling cavity, the support frame supporting the power receiving panel and being fixed to the lower end surface of the power receiving panel.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] Positioning parts are set on the furnace cover plate to position the anode conductive components, and mounting holes are set on the positioning parts to fix the anode conductive components. In other words, only positioning parts and mounting holes corresponding to the number of anode conductive components need to be set on the furnace cover plate, which greatly simplifies the production process and technology of the furnace cover plate and saves the production cost of the furnace cover plate.

[0028] The positioning groove is used to position the connector plate. The mounting base is stacked on top of the connector plate and fixed into the mounting hole by the same fixing component. The positioning groove only needs to position the connector plate, without the need for an additional positioning structure to position the mounting base.

[0029] A windbreak block is installed to fill the space between the two anode conductive components, forming a complete windbreak plate that shields the area above the insertion hole and blocks the wind from blowing into the electrolytic cell, thus preventing external airflow from affecting the electrolysis and collection of rare earth elements. Attached Figure Description

[0030] Figure 1 This is an exploded structural diagram of the present invention.

[0031] Figure 2 This is a schematic diagram of the connection structure between the anode conductive component and the anode plate.

[0032] Figure 3 This is a schematic diagram of the exploded structure of the furnace cover plate.

[0033] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0034] Figure 5 This is a schematic diagram showing the location and structure of the air vent on the electrical panel.

[0035] The attached diagram is labeled as follows: 500, furnace cover plate; 501, insertion hole; 502, mounting hole; 510, power connection panel; 511, positioning groove; 520, cover plate seat; 503, cooling chamber; 521, support rib.

[0036] 600, Anode conductive component; 610, Mounting base; 611, Electrode mounting part; 612, Extension part; 620, Terminal plate; 630, Fixing component;

[0037] 700, windbreak block;

[0038] 4. Anode plate; 5. Liquid guide tube; 6. Support pin;

[0039] a. Electrode port; b. Air vent. Detailed Implementation

[0040] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0041] like Figure 1-5 As shown in the figure, this embodiment discloses a furnace surface structure for an electrolytic furnace.

[0042] A furnace surface structure for an electrolytic furnace, comprising,

[0043] A furnace cover plate 500 with an internal cooling chamber 503 is used to be installed on a rare earth electrolysis furnace. The center of the furnace cover plate 500 is provided with an insertion hole 501, and a cooling chamber 503 is provided around the insertion hole 501 on the furnace cover plate 500 for cooling the furnace cover plate 500.

[0044] Multiple anode conductive components 600 are used to mount the anode plate 4. The anode conductive components 600 are arranged in a circle around the outer ring of the insertion hole 501 and extend above the insertion hole 501.

[0045] In order to install the anode conductive component 600, in this embodiment, the furnace cover plate 500 is provided with a positioning part corresponding to the anode conductive component 600, which is used to position and fix the anode conductive component 600.

[0046] Preferably, the positioning part is provided with at least one mounting hole 502, which can fasten the anode conductive component 600 to the furnace cover plate 500.

[0047] Specific reference Figure 1 As shown, the furnace cover plate 500 is a shell structure with a hollow interior containing a cooling chamber 503, and an insertion hole 501 vertically penetrating the furnace cover plate 500.

[0048] The anode conductive component 600 is disposed on the upper end surface of the furnace cover plate 500, and one end of it extends toward the center of the furnace cover plate 500 and into the position of the insertion hole 501 for mounting the anode plate 4. The anode plate 4 extends downward through the insertion hole 501 into the rare earth electrolysis furnace.

[0049] A positioning part is set on the furnace cover plate 500 to position the anode conductive component 600, and an installation hole 502 is set on the positioning part to fix the anode conductive component 600. In other words, the furnace cover plate 500 only needs to be set with positioning parts and installation holes 502 corresponding to the number of anode conductive components 600, which greatly simplifies the production process and technology of the furnace cover plate 500 and saves the production cost of the furnace cover plate 500.

[0050] To further reduce the structure on the furnace cover plate 500, in this embodiment, the anode conductive component 600 includes a mounting base 610 and a junction plate 620, and the mounting base 610 and the junction plate 620 are stacked and fixed by the same fixing component 630.

[0051] Specific reference Figure 2 As shown, the mounting base 610 and the electrical connection plate 620 are stacked and fixed by the same fixing component 630, which saves the number of fixing components 630 used. At the same time, only one component of the mounting base 610 or the electrical connection plate 620 needs to be positioned to position the whole, so as to meet the need to reduce the positioning structure on the furnace cover plate 500.

[0052] In this embodiment, in order to position the anode conductive component 600, the top surface of the furnace cover plate 500 is a power receiving panel 510, and the positioning part is a positioning groove 511 provided on the power receiving panel 510 for installing the anode conductive component 600; the positioning groove 511 is provided with a mounting hole 502.

[0053] Preferably, in this embodiment, the positioning groove 511 is used to position the electrode plate 620, and the mounting base 610 is stacked on top of the electrode plate 620 and fixed into the mounting hole 502 by the same fixing component 630. The positioning groove 511 only needs to position the electrode plate 620, without the need to set an additional positioning structure to position the mounting base 610.

[0054] Meanwhile, the mounting hole 502 is located near the insertion hole 501. The inner side of the assembled furnace cover plate 500 needs to support the anode plate 4 and other structures, so a large supporting force is required. The mounting hole 502 is reasonably positioned and can provide good support for the middle part of the furnace cover plate 500.

[0055] Preferably, in this embodiment, the mounting base 610 is an iron conductive plate.

[0056] Preferably, in this embodiment, to ensure good conductivity of the anode conductive component 600, the junction plate 620 is made of copper.

[0057] In this embodiment, multiple anode plates 4 are inserted into the insertion hole 501 and spliced ​​together to form an annular electrolytic cell. Therefore, the mounting base 610 needs to be arranged in an annular shape. Preferably, the positioning groove 511 is arranged radially around the insertion hole 501, and its outer end extends to the outer end of the conductive panel.

[0058] Based on the above configuration, the anode conductive component 600, under the action of the positioning groove 511, forms a ring around the outer periphery of the insertion hole 501, so that the portion of the mounting base 610 extending into the insertion hole 501 forms a ring structure. Furthermore, in this embodiment, the outer end of the positioning groove 511 extends to the outer end of the conductive panel. In the prior art, the conductive sheet has a bending structure at its outer end to facilitate connection with the power receiving base under the furnace cover plate 500. In this embodiment, the positioning groove 511 is used in conjunction with the bending of the power receiving plate 620 to meet the power receiving requirements.

[0059] Preferably, in this embodiment, the thickness of the junction plate 620 is not less than the depth of the positioning groove 511.

[0060] This configuration ensures that the mounting base 610, which is superimposed on the upper surface of the grounding plate 620, fits tightly against the grounding plate 620, thereby guaranteeing good conductivity.

[0061] In this embodiment, to meet the structural requirements of the electrolytic cell, the mounting base 610 includes an electrode mounting portion 611 extending into the insertion hole 501 and an extension portion 612 fixed to the power receiving panel 510; the electrode mounting portion 611 and the extension portion 612 are integrally formed to form a strip-shaped mounting base 610, with the electrode mounting portion 611 facing the center of the insertion hole 501. One end of the electrode mounting portion 611 is set as an arc-shaped surface, and multiple fixing holes are provided on the arc-shaped surface for fixing the anode plate 4, and the electrode mounting portion 611 can be spliced ​​to form a circular electrode opening a; the anode plate 4 is fixed to the lower end face of the electrode mounting portion 611 and extends below the electrode opening a to form an electrolytic cell, as detailed in the following figure. Figure 4 As shown.

[0062] Preferably, in this embodiment, the anode plate 4 is a long, arc-shaped plate that can pass through the insertion hole 501 and extend downwards, and multiple anode plates 4 can be spliced ​​together to form a circular electrolytic cell.

[0063] When the end of the anode conductive component 600 extends above the insertion hole 501, it blocks the edge above the insertion hole 501. After the ends of multiple anode conductive components 600 are spliced ​​together, an electrolytic hole with an inner diameter smaller than that of the insertion hole 501 is formed. A notch is formed between two adjacent extensions 612. Furthermore, because the inner diameter of the electrolytic hole is small, the part above the insertion hole 501 located between two anode conductive components 600 is not blocked, making it easy for air to enter. The electrolytic cell has a vent b at the notch. A baffle block 700 is provided at the notch to cover the vent b.

[0064] In this embodiment, a windbreak block 700 is provided at this location. The windbreak block 700 fills the space between the two anode conductive components 600, forming a complete windbreak plate that shields the area above the insertion hole 501, thus blocking the electrolytic cell from the wind and preventing external airflow from affecting the electrolysis and collection of rare earth elements. See details below. Figure 5 As shown.

[0065] In this embodiment, the specific configuration of the cooling cavity 503 is as follows: (See attached image for details.) Figure 3 As shown, the furnace cover plate 500 also includes a cover plate seat 520 disposed below the power receiving panel 510, and the cooling cavity 503 is disposed between the cover plate seat 520 and the furnace cover plate 500; the cover plate seat 520 is provided with a cavity wall for surrounding and forming an annular groove, and the cavity wall is sealed and installed on the lower end face of the power receiving panel 510 so that the cross-sectional panel seals the upper end of the annular groove to form the cooling cavity 503, and the cooling cavity 503 is arranged in an annular shape around the insertion hole 501.

[0066] During the electrolysis process in the electrolytic furnace, the heat inside the electrolytic cell is the highest, and the heat gradually decreases outward in a radial pattern. In this embodiment, the cooling chamber 503 is set as a ring structure to adapt to the temperature distribution of the electrolytic furnace, which can maximize the cooling of the electrical panel 510.

[0067] Based on the above configuration, the cavity wall not only seals the cooling cavity 503, but also provides support for the electrical panel 510, ensuring the stability of the electrical panel 510 under stress.

[0068] In addition, in this embodiment, a liquid guide pipe 5 is provided inside the cooling chamber 503, and the liquid guide pipe 5 connects the external water supply device and the cooling chamber 503.

[0069] One end of the liquid guide tube 5 extends through the cavity wall to the outside and connects with the water supply device, while the other end is located inside the cooling cavity 503.

[0070] In this embodiment, the power receiving panel 510 is configured as an approximately square structure, while the cooling cavity 503 is an annular structure. To ensure stable support for the power receiving panel 510, in this embodiment, a support frame extends outward from the outer wall of the cooling cavity 503. The outermost end of the support frame is fixed to the four corners of the power receiving panel 510 by support pins 6. Furthermore, the support frame includes a support rib 521 that connects two adjacent support pins 6 and connects the support pins 6 and the cavity wall. The upper end of the support rib 521 abuts against the power receiving panel 510, forming support for the power receiving panel 510, thereby ensuring uniform support of the entire cover plate seat 520 for the power receiving panel 510 and enhancing the structural strength of the furnace cover plate 500.

[0071] In this embodiment, the cooling cavity 503 is provided with a support hole for installing the fixing component 630, and the lower part of the fixing component 630 seals and fixes the support hole.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A furnace surface structure for an electrolytic furnace, characterized in that: include, A furnace cover plate (500) with an internal cooling chamber (503) has an insertion hole (501) in the center of the furnace cover plate (500); Multiple anode conductive components (600) are used to mount the anode plate (4), the anode conductive components (600) are arranged in a circle around the outer ring of the insertion hole (501) and extend above the insertion hole (501); The furnace cover plate (500) is provided with a positioning part corresponding to the anode conductive component (600) for positioning and fixing the anode conductive component (600).

2. The furnace surface structure of the electrolytic furnace according to claim 1, characterized in that: The anode conductive component (600) includes a mounting base (610) and a junction plate (620), which are stacked and fixed at the positioning position and are fixed by the same fixing component (630).

3. The furnace surface structure of the electrolytic furnace according to claim 2, characterized in that: The top surface of the furnace cover plate (500) is an electrical contact panel (510), and the positioning part is a positioning groove (511) provided on the electrical contact panel (510) for installing the anode conductive component (600); the positioning groove (511) is provided with an installation hole (502).

4. The furnace surface structure of the electrolytic furnace according to claim 3, characterized in that: The positioning groove (511) is arranged radially around the insertion hole (501), and its outer end extends to the outer end of the conductive panel.

5. The furnace surface structure of the electrolytic furnace according to claim 2, characterized in that: The mounting base (610) includes an electrode mounting part (611) extending into the insertion hole (501) and an extension part (612) fixed to the power receiving panel (510); one end of the electrode mounting part (611) is set as an arc surface, and the electrode mounting part (611) can be spliced ​​to form a circular electrode opening (a); the anode plate (4) is fixed to the lower end face of the electrode mounting part (611) and extends into the area below the electrode opening (a) to form an electrolytic cell.

6. The furnace surface structure of the electrolytic furnace according to claim 3, characterized in that: The thickness of the junction plate (620) is not less than the depth of the positioning groove (511).

7. The furnace surface structure of the electrolytic furnace according to claim 5, characterized in that: A gap is formed between two adjacent extensions (612), and the electrolytic cell has an air vent (b) at the gap; a wind baffle (700) is provided at the gap to cover the air vent (b).

8. The furnace surface structure of the electrolytic furnace according to claim 3, characterized in that: The furnace cover plate (500) also includes a cover plate seat (520) located below the power connection panel (510), and the cooling cavity (503) is located between the cover plate seat (520) and the furnace cover plate (500); the cooling cavity (503) is arranged in a ring around the insertion hole (501).

9. The furnace surface structure of the electrolytic furnace according to claim 8, characterized in that: The cooling chamber (503) is provided with a liquid guide pipe (5), which connects the external water supply device and the cooling chamber (503).

10. The furnace surface structure of the electrolytic furnace according to claim 8, characterized in that: The cover plate seat (520) also includes a support frame extending outward from the cooling cavity (503), the support frame supporting the power receiving panel (510) and fixed to the lower end surface of the power receiving panel (510).

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