Electrode cooling device

Abstract

The utility model provides an electrode cooling device which comprises a cooling sleeve, the cooling sleeve comprises an annular sleeve and a bottom plate, the bottom plate is connected to the opposite end of the annular sleeve, and a sleeve opening is formed in the other opposite end of the annular sleeve; a cooling water cavity is formed in the annular sleeve, and a water inlet pipe and a water outlet pipe which are communicated with the cooling water cavity are arranged on the outer wall of the annular sleeve. According to the electrode cooling device provided by the embodiment of the invention, the cooling water flows in the cooling water cavity of the cooling sleeve in a sealed manner and does not directly contact with the negative electrode, so that the cooling water can be prevented from permeating into the furnace body. Electrode oxidation caused by water vapor generated when cooling water permeates into the road body is avoided, so that the service life of the electrode can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of graphitization furnace, in particular to an electrode cooling device. BACKGROUND

[0002] Graphitized powder is mainly used as a carbon additive in steel metallurgy and as a cathode carbon block and pre-baked anode in non-ferrous metal electrolytic cells and as a diamond product, and is a very important industrial material. The existing graphitization furnace widely used is a vertical graphite resistance furnace, which heats the raw materials through the upper and lower positive and negative graphite blocks. The principle is that after the raw materials pass through the electric field between the positive and negative electrodes, heat is generated due to the electrical resistance of the raw materials after being powered on, and the raw materials are subjected to high-temperature treatment.

[0003] In the related art, a vertical graphitization furnace is disclosed in Chinese Patent No. CN114166013B. The vertical graphitization furnace mainly includes a furnace body and an upper electrode and a lower electrode arranged in the furnace body. A part of the lower electrode extends outside the furnace body and is connected with a negative electrode (copper bar). Since the temperature of the graphitization furnace is very high during operation, if no cooling measures are taken, the part of the lower electrode extending outside the furnace body is easily oxidized by contacting with oxygen in the air under high-temperature conditions. Therefore, a negative temperature control device is arranged at the part of the lower electrode extending outside the furnace body. The device includes a drainage groove and a water spraying pipe. Cooling water is directly sprayed onto the lower electrode through the water spraying pipe, thereby cooling the lower electrode and avoiding oxidation and loss of the lower electrode due to excessive temperature.

[0004] However, since there is a gap between the lower electrode and the furnace body, the cooling water directly sprayed on the lower electrode may penetrate into the furnace body through the gap between the lower electrode and the furnace body, thereby generating water vapor in the furnace body and causing oxidation of the electrode in the furnace body, affecting the service life of the electrode. UTILITY MODEL CONTENT

[0005] The electrode cooling device provided by the embodiment of the present application includes a cooling sleeve, the cooling sleeve includes an annular sleeve and a bottom plate, the bottom plate is connected to one end of the annular sleeve, and the other end of the annular sleeve is provided with a sleeve opening.

[0006] The annular sleeve has a cooling water cavity, and the outer wall of the annular sleeve is provided with a water inlet pipe and a water outlet pipe in communication with the cooling water cavity.

[0007] The electrode cooling device provided by the embodiment of the present application has the advantages that the cooling water is sealed in the cooling water cavity of the cooling sleeve and does not directly contact the negative electrode, so that the penetration of the cooling water into the furnace body is prevented. The oxidation of the electrode caused by the penetration of the cooling water into the furnace body and the generation of water vapor is avoided, so that the service life of the electrode can be prolonged.

[0008] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises a ring-shaped sleeve, wherein the ring-shaped sleeve comprises at least two unit ring walls, and each unit ring wall encloses the ring-shaped sleeve.

[0009] Each unit ring wall is provided with a unit water cavity, and the unit water cavities of the unit ring walls are not communicated with each other; and the outer wall of the unit ring wall is provided with a unit water inlet pipe and a unit water outlet pipe which are communicated with the unit water cavity.

[0010] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises a plurality of partitions which are arranged in the unit water cavity.

[0011] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the water passing holes on the adjacent two partitions are staggered and arranged on the opposite sides of the partitions.

[0012] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the unit water inlet pipe is arranged on the opposite lower side of the unit water outlet pipe.

[0013] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the bottom plate is provided with a bottom plate water cavity, and the outer wall of the bottom plate is provided with a bottom plate water inlet pipe and a bottom plate water outlet pipe which are communicated with the bottom plate water cavity.

[0014] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the bottom plate water cavity is provided with a plurality of arc-shaped plates which are arranged at the same center and in the radial direction.

[0015] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the bottom plate water inlet pipe is arranged on the opposite lower side of the bottom plate water outlet pipe.

[0016] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the outer cylinder wall of the cooling sleeve is provided with a copper conductor.

[0017] In one possible implementation, the electrode cooling device provided by the embodiment of the present application comprises that the outer wall of the unit ring wall is provided with a connecting lug, and the connecting lugs of the adjacent two unit ring walls are connected by bolts; and the connected two connecting lugs form the copper conductor. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0019] Figure 1 is a structural schematic diagram of an electrode cooling device provided by the embodiments of the present application;

[0020] Figure 2 is an exploded schematic diagram of an electrode cooling device provided by the embodiments of the present application;

[0021] Figure 3 is a sectional schematic diagram of a unit ring wall in an electrode cooling device provided by the embodiments of the present application;

[0022] Figure 4 is a sectional schematic diagram of a bottom plate in an electrode cooling device provided by the embodiments of the present application.

[0023] Explanation of reference signs

[0024] 100-cooling sleeve;

[0025] 10-annular sleeve;

[0026] 10a-water inlet pipe;

[0027] 10b-water outlet pipe;

[0028] 11-unit ring wall;

[0029] 12-unit water inlet pipe;

[0030] 13-unit water outlet pipe;

[0031] 14-baffle plate;

[0032] 15-connection lug;

[0033] 16-conductive copper plate;

[0034] 20-bottom plate;

[0035] 21-bottom plate water inlet pipe;

[0036] 22-bottom plate water outlet pipe;

[0037] 23-arc-shaped plate;

[0038] 200-negative electrode. DETAILED DESCRIPTION

[0039] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more details below with reference to the drawings in the preferred embodiments of the present application. In the drawings, identical or similar labels represent identical or similar components or components with identical or similar functions throughout. The described embodiments are part of the embodiments of the present application, but not all the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, but cannot be understood as a limitation of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] Figure 1 Fig. 1 is a structural schematic diagram of an electrode cooling device provided by an embodiment of the present application; Figure 2 Fig. 2 is an exploded schematic diagram of the electrode cooling device provided by the embodiment of the present application; Figure 3 Fig. 3 is a sectional schematic diagram of a unit ring wall in the electrode cooling device provided by the embodiment of the present application; Figure 4 Fig. 4 is a sectional schematic diagram of a bottom plate in the electrode cooling device provided by the embodiment of the present application.

[0041] Referring to Fig. 1, Figures 1-4 the embodiment of the present application provides an electrode cooling device, which comprises a cooling sleeve 100, the cooling sleeve 100 is a cylindrical copper metal cylinder with an opening, and it comprises a ring-shaped sleeve 10 and a bottom plate 20, the bottom plate 20 is connected to an opposite end of the ring-shaped sleeve 10, and the opposite end of the ring-shaped sleeve 10 is a cylinder opening.

[0042] The ring-shaped sleeve 10 has a cooling water cavity inside, and the outer wall of the ring-shaped sleeve 10 is provided with a water inlet pipe 10a and a water outlet pipe 10b which are in communication with the cooling water cavity, the water inlet pipe 10a is located below the water outlet pipe 10b. Cooling water is input into the cooling water cavity through the water inlet pipe 10a, and then the water in the cooling water cavity is discharged through the water outlet pipe 10b.

[0043] Working principle: the cooling sleeve 100 is sleeved outside the negative electrode 200 of the graphitization furnace, and the inner wall of the cooling sleeve 100 is tightly attached to the outer wall of the negative electrode 200, so that the heat generated by the negative electrode 200 is conducted to the cooling sleeve 100. Cooling water is input into the cooling water cavity through the water inlet pipe 10a, and then the cooling water exchanges heat with the cooling sleeve 100 and is discharged through the water outlet pipe 10b, thereby taking away the heat, so that the cooling sleeve 100 and the negative electrode 200 are cooled.

[0044] The electrode cooling device provided by the embodiment of the present application, the cooling water flows in the cooling water cavity of the cooling sleeve 100 and does not directly contact the negative electrode 200, so that the cooling water can be prevented from penetrating into the furnace body. The electrode oxidation caused by the water vapor generated by the penetration of the cooling water into the furnace body is avoided, so that the service life of the electrode can be prolonged.

[0045] In addition, the device directly spraying cooling is easy to be polluted by dust in the production site, and cannot be reused or needs to be filtered before reuse. However, the electrode cooling device provided by the embodiment of the application can reduce the pollution of the external environment to the cooling water (a large amount of dust exists in the production site, which is easy to pollute the cooling water), realize the recycling of the cooling water, and save a large amount of water resources, compared with the device directly spraying cooling.

[0046] It can be understood that, based on the flow route of the cooling water in the cooling water cavity, the area first flowed through by the cooling water is bound to be cooled quickly, and the area flowed through by the cooling water later is bound to be cooled slowly, which will cause the cooling speed of different areas of the negative electrode 200 to be inconsistent. In order to make the cooling speed of different areas of the negative electrode 200 more consistent, the annular sleeve 10 can be provided in a spliced structure, that is, at least two unit ring walls 11 are included, and each unit ring wall 11 is connected to form the annular sleeve 10. One unit water cavity is arranged in each unit ring wall 11, and the unit water cavities of the unit ring walls 11 are not communicated with each other. The outer wall of each unit ring wall 11 is provided with an independent unit water inlet pipe 12 and a unit water outlet pipe 13 which are communicated with the unit water cavity. By setting a plurality of unit ring walls 11 to form the annular sleeve 10, the cooling water cavity is equivalent to being divided into a plurality of independent unit water cavities, and the cooling water flows into and out of each unit water cavity. Each unit ring wall 11 corresponds to the cooling of an area on the negative electrode 200, so that the cooling speed of different areas of the negative electrode 200 can be made more consistent.

[0047] For example, as shown in Figure 2 In the embodiment of the application, the annular sleeve 10 is formed by two semicircular unit ring walls 11, and the top end and the bottom end of the unit ring wall 11 are each provided with a connecting lug 15, and the connecting lugs 15 of the two semicircular unit ring walls 11 are connected by bolts. The connecting lug 15 at the top end can simultaneously serve as a conductive copper plate 16 for connecting the power supply, so that it is not necessary to additionally provide a conductive copper plate 16. Correspondingly, the material of the unit ring wall 11 is also copper material, which can take into account the conductivity and heat dissipation based on the excellent thermal conductivity and electrical conductivity of copper, and is very suitable for making the unit ring wall 11.

[0048] Specifically, as shown in Figure 3 A plurality of partitions 14 are arranged in the unit water cavity at intervals, and the partitions 14 divide the unit water cavity into a plurality of spaces. The partitions 14 are provided with water passing through holes, and the water passing through holes on the adjacent two partitions 14 are staggered and distributed on the opposite sides of the partition 14, so that the plurality of spaces divided are communicated with each other, thereby forming a circuitous cooling water flow route in the unit water cavity. The circuitous flow of the cooling water can make the cooling water and the unit ring wall 11 fully exchange heat, thereby improving the utilization rate of the cooling water.

[0049] In the embodiment of the present application, referring to Figure 4 As shown in the figure, the bottom plate 20 has a water cavity, and the outer wall of the bottom plate 20 is provided with a bottom plate water inlet pipe 21 and a bottom plate water outlet pipe 22 which are in communication with the water cavity. In this way, cooling water can be introduced into the bottom plate 20, so that the end of the negative electrode 200 is also cooled.

[0050] Specifically, a plurality of arc-shaped plates 23 are arranged in the water cavity of the bottom plate 20, which divide the water cavity into a plurality of cooling water distribution channels. The cooling water is distributed into multiple streams by the arc-shaped plates 23 to ensure sufficient heat exchange between the cooling water and each area of the bottom plate 20, thereby improving the utilization rate of the cooling water.

[0051] It should be noted that the water inlet pipe 10a and the water outlet pipe 10b of the cooling sleeve 100, the unit water inlet pipe 12 and the unit water outlet pipe 13 of the unit ring wall 11, and the bottom plate water inlet pipe 21 and the bottom plate water outlet pipe 22 of the bottom plate 20 are all arranged in the order of “water inlet pipe” below and “water outlet pipe” above, which can ensure that the cooling water fills the cavity.

[0052] In the description of the embodiments of the present application, it should be understood that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting” should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms “upper”, “lower”, “front”, “rear”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specified and limited.

[0053] The terms "first", "second", "third", "fourth", and the like in the description and in the claims of the present application and in the above diagram merely denote like objects, and do not necessarily denote a particular order or sequence. It is to be understood that data so used can be interchanged, where appropriate, so that, for example, any embodiment described herein can be carried out in an order other than that illustrated or described herein. Furthermore, the terms "comprise", "comprising", "include", "including", and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or apparatus that comprises a list of steps or units is not necessarily limited to those steps or units that are expressly listed, but can include additional steps or units that are not expressly listed or inherent to such process, method, product, or apparatus.

[0054] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, but not limiting the technical solutions of the present application; although the present application has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacements for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrode cooling device, characterized by, The cooling sleeve comprises a ring sleeve and a bottom plate connected to opposite ends of the ring sleeve, and the opposite other end of the ring sleeve is provided with a sleeve opening; The ring sleeve is provided with a cooling water cavity, and the outer wall of the ring sleeve is provided with a water inlet pipe and a water outlet pipe in communication with the cooling water cavity.

2. The electrode cooling device of claim 1, wherein, The ring sleeve comprises at least two unit ring walls, and each unit ring wall encloses the ring sleeve; The unit ring wall is provided with a unit water cavity, and the unit water cavities of the unit ring walls are not in communication with each other; the outer wall of the unit ring wall is provided with a unit water inlet pipe and a unit water outlet pipe in communication with the unit water cavity.

3. The electrode cooling device of claim 2, wherein, The unit water cavity is provided with a plurality of partition plates, and the partition plates are provided with water passing through holes.

4. The electrode cooling device of claim 3, wherein, The water passing through holes on the adjacent two partition plates are staggered on the opposite sides of the partition plates.

5. The electrode cooling device of claim 2, wherein, The unit water inlet pipe is located on the opposite lower side of the unit water outlet pipe.

6. The electrode cooling device of claim 1, wherein, The bottom plate is provided with a bottom plate water cavity, and the outer wall of the bottom plate is provided with a bottom plate water inlet pipe and a bottom plate water outlet pipe in communication with the bottom plate water cavity.

7. The electrode cooling device of claim 6, wherein, The bottom plate water cavity is provided with a plurality of arc-shaped plates, and each arc-shaped plate has the same center and is arranged radially.

8. The electrode cooling device of claim 6, wherein, The bottom plate water inlet pipe is located on the opposite lower side of the bottom plate water outlet pipe.

9. The electrode cooling arrangement of any of claims 2-5, wherein, The outer wall of the cooling sleeve is provided with a conductive copper bar.

10. The electrode cooling device of claim 9, wherein, The outer wall of the unit ring wall is provided with a connecting lug, and the connecting lugs of the adjacent two unit ring walls are connected by bolts; the connected two connecting lugs form the conductive copper bar.

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