Box-type graphitization furnace with detachable heating electrode assembly

Abstract

The utility model relates to the technical field of graphitization furnaces, and discloses a box-type graphitization furnace with a detachable heating electrode assembly, which comprises a furnace body, furnace heads are fixedly mounted on two sides of the furnace body, each furnace head further comprises an inner wall and an outer wall, the inner wall further comprises a plurality of carbon block bricks, the outer wall comprises a plurality of refractory bricks, and the carbon block bricks are arranged on the outer wall. An end seat is fixedly installed on one side of the refractory bricks, a cooling cover is fixedly installed on one side of the end seat, and a plurality of contact pieces are movably installed in the cooling cover. A positioning seat is arranged on one side of a plurality of refractory bricks of an outer wall assembly so as to be matched with an inner frame and a pull rod to achieve rapid positioning and installation of an end seat, a cooling cover is arranged on one side of the end seat, and a plurality of sets of contact pieces, first inserting plates and second inserting plates are arranged on the inner side of the cooling cover. Therefore, the multiple contact pieces synchronously abut against the outer surface of the electrode bar through the multiple sets of adjusting rods, the fixing blocks and the guide shafts on one side of the adjusting ring, on one hand, disassembly and maintenance of the electrode bar are facilitated, and on the other hand, the cooling effect of the part, exposed out of the furnace body, of the electrode bar can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of graphitization furnaces, in particular to a box-type graphitization furnace with a detachable heating electrode assembly. Background Art

[0002] In some graphitization furnaces, the heating function is achieved through electrodes, that is, the furnace head of this type of graphitization furnace is usually composed of an outer wall made of refractory bricks or castables and an inner wall made of graphitized blocks and carbon blocks. During assembly, installation holes suitable for the size and number of electrodes are reserved on the furnace head. Insulating sleeves are set on the inner walls of the installation holes. The electrodes pass through the gaps between the inner and outer walls of the furnace head. The gaps are filled with graphite powder and compacted to even out the current and keep the temperature.

[0003] Since the electrodes of traditional graphitization furnaces are usually fixedly installed in the furnace head, when the electrodes are worn out or fail due to long-term high-temperature operation, the furnace head structure needs to be disassembled on a large scale, resulting in cumbersome and time-consuming maintenance procedures, which seriously affects production efficiency. At the same time, the part of the electrode exposed on the outside of the furnace body only relies on simple water cooling or air cooling to cool down. The contact area between the cooling structure and the electrode is limited, and it is difficult to flexibly adjust according to changes in the electrode size. The cooling efficiency is easily unstable due to poor contact, which in turn causes problems such as increased electrode oxidation and increased contact resistance. This not only increases energy consumption, but may also cause safety hazards due to local overheating and increase the difficulty of later electrode disassembly and assembly. Utility Model Content

[0004] The purpose of the utility model is to provide a box-type graphitization furnace with a detachable heating electrode assembly, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A box-type graphitization furnace with a detachable heating electrode assembly comprises a furnace body, furnace heads are fixedly installed on both sides of the furnace body, the furnace head also comprises an inner wall and an outer wall, and the inner wall also comprises a plurality of carbon bricks, the outer wall comprises a plurality of refractory bricks, and a plurality of the refractory bricks are fixedly installed with end seats on one side, a cooling hood is fixedly installed on one side of the end seat, a plurality of contact sheets are movably installed in the cooling hood, an adjustment ring is fixedly installed on one side of the cooling hood, a plurality of adjustment rods are fixedly installed on the adjustment ring relative to one side of the cooling hood, and an inner frame is fixedly installed on the side of the refractory brick opposite to the end seat.

[0007] As a further preferred embodiment of the present invention, a positioning seat is fixedly installed on one side of the plurality of refractory bricks, and a sealing groove is provided on the side of the refractory brick opposite to the positioning seat, the positioning seat, the sealing groove and the refractory brick are sintered into one piece, and the positioning seat can provide positioning conditions for the installation of the end seat, and the sealing groove can provide sealing conditions for the through hole of the refractory brick through which the electrode rod is inserted.

[0008] As a further preferred solution of the utility model, a plurality of fixing seats are fixedly installed on the outer side of the end seat, and the end seat is installed on the positioning seat through insertion.

[0009] As a further preferred embodiment of the present invention, a sealing ring is fixedly installed on one side of the inner frame, and the outer side of the sealing ring is a sloped structure. Pull rods are also fixedly installed on the four ends of the inner frame. One side of the sealing ring is inserted into the sealing groove, and one side of the pull rod passes through the through hole in the refractory brick and one of the fixed seats and is fixed by a nut. The cooperation between the inner frame and the pull rod can fix the end seat on the positioning seat. At the same time, with the help of the cooperation between the sealing ring and the sealing groove, the graphite powder in the furnace body can be prevented from leaking out from the through hole in the refractory brick where the electrode rod is installed.

[0010] As a further preferred embodiment of the present invention, a water inlet pipe and a water outlet pipe are fixedly installed on the outside of the cooling cover, and the water inlet pipe and the water outlet pipe are respectively connected to the external delivery pump output end and the water tank through pipelines, a plurality of fixing studs are fixedly installed on one side of the cooling cover, a plurality of storage grooves are opened on the inside of the cooling cover, and a plurality of through holes are opened on the inside of the storage grooves.

[0011] As a further preferred embodiment of the present invention, a first plug plate is fixedly installed on the top of the contact piece, a second plug plate is fixedly installed on the top of the first plug plate, a guide groove is opened on the top of the second plug plate, the first plug plate and the second plug plate are inserted and installed in one of the through holes, and the contact piece is placed in the storage groove, and the cooling cover is connected to the external circulating water supply equipment through a pipeline, so that the portion of the electrode rod exposed on the outside of the furnace body can be cooled by cooperating with the multiple groups of contact pieces, the first plug plate and the second plug plate on the inner side. At the same time, the setting of multiple contact pieces can achieve closer contact with the electrode rod and ensure the efficiency of thermal conductive cooling.

[0012] As a further preferred embodiment of the present invention, the adjusting rod is fixedly mounted with a plurality of fixed blocks relative to one side of the cooling cover, the fixed block is provided with a slope surface opposite to the top of the second plug-in plate on one side of the cooling cover and is fixedly mounted with a guide shaft, and the diameter of the guide shaft is larger than the diameter of the fixed block, the combination of the fixed block and the guide shaft is inserted and installed in the corresponding guide groove, and the combination of the adjusting ring, the adjusting rod, the fixed block and the guide shaft can realize the synchronous displacement of the plurality of second plug-in plates, thereby synchronously adjusting the plurality of contact pieces to be stored in the storage groove for facilitating the disassembly and assembly of the electrode rod, and at the same time, it can also realize the synchronous removal of the plurality of contact pieces from the corresponding storage groove and abutting against the outer surface of the electrode rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, a positioning seat is arranged on one side of a plurality of refractory bricks which constitute the outer wall, so as to cooperate with the inner frame and the pull rod to realize the rapid positioning and installation of the end seat, and a cooling cover is arranged on one side of the end seat, and a plurality of groups of contact pieces, a first plug plate and a second plug plate are arranged on the inner side of the cooling cover, so as to realize the synchronous abutment of a plurality of contact pieces against the outer surface of the electrode rod by means of a plurality of groups of adjusting rods, a fixing block and a guide shaft on one side of the adjusting ring, thereby facilitating the disassembly, assembly and maintenance of the electrode rod on the one hand, and ensuring the cooling effect of the electrode rod exposed on the outer side of the furnace body on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the furnace head structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the disassembled structure of the refractory bricks, the end seats, the cooling cover and the adjusting ring of the utility model;

[0018] Figure 4 This is a schematic diagram of the refractory brick structure of the utility model;

[0019] Figure 5 It is a cross-sectional view of the refractory brick, the end seat, the cooling cover and the adjustment ring of the utility model;

[0020] Figure 6 It is a cross-sectional view of the cooling cover of the utility model;

[0021] Figure 7 for Figure 5 The enlarged view of point A in the middle;

[0022] Figure 8 It is a schematic diagram of the structure of the contact piece, the first plug board and the second plug board of the utility model.

[0023] In the figure: 1. furnace body; 2. furnace head; 3. charcoal block brick; 4. refractory brick; 5. end seat; 6. cooling cover; 7. contact piece; 8. adjusting ring; 9. adjusting rod; 10. inner frame; 11. positioning seat; 12. sealing groove; 13. fixing seat; 14. sealing ring; 15. pull rod; 16. water inlet pipe; 17. water outlet pipe; 18. storage groove; 19. through hole; 20. fixing stud; 21. first plug plate; 22. second plug plate; 23. guide groove; 24. fixing block; 25. guide shaft; 26. inner wall; 27. outer wall. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figures 1-8 As shown, the utility model provides a box-type graphitization furnace with a detachable heating electrode assembly, including a furnace body 1, furnace heads 2 are fixedly installed on both sides of the furnace body 1, the furnace head 2 also includes an inner wall 26 and an outer wall 27, and the inner wall 26 also includes a plurality of carbon bricks 3, the outer wall 27 includes a plurality of refractory bricks 4, and one side of the plurality of refractory bricks 4 is fixedly installed with an end seat 5, one side of the end seat 5 is fixedly installed with a cooling cover 6, a plurality of contact sheets 7 are movably installed in the cooling cover 6, an adjusting ring 8 is fixedly installed on one side of the cooling cover 6, a plurality of adjusting rods 9 are fixedly installed on the adjusting ring 8 relative to one side of the cooling cover 6, and an inner frame 10 is fixedly installed on the side of the refractory brick 4 away from the end seat 5.

[0026] like Figures 2-5 As shown, a plurality of refractory bricks 4 are fixedly installed with a positioning seat 11 on one side, and a sealing groove 12 is provided on the side of the refractory brick 4 away from the positioning seat 11. The positioning seat 11, the sealing groove 12 and the refractory brick 4 are sintered and formed as a whole, and the positioning seat 11 can provide positioning conditions for the installation of the end seat 5, and the sealing groove 12 can provide sealing conditions for the through hole of the electrode rod inserted in the refractory brick 4. A plurality of fixing seats 13 are fixedly installed on the outer side of the end seat 5, and the end seat 5 is inserted and installed on the positioning seat 11. A sealing ring 1 is fixedly installed on one side of the inner frame 10. 4, the outer side of the sealing ring 14 is in a sloped structure, and the four ends of the inner frame 10 are also fixedly installed with tie rods 15, one side of the sealing ring 14 is inserted and installed in the sealing groove 12, and one side of the tie rod 15 passes through the through hole in the refractory brick 4 and one of the fixing seats 13 and is fixed by a nut. The cooperation between the inner frame 10 and the tie rod 15 can fix the end seat 5 on the positioning seat 11. At the same time, with the cooperation between the sealing ring 14 and the sealing groove 12, the graphite powder in the furnace body 1 can be prevented from leaking out from the through hole in the refractory brick 4 where the electrode rod is installed.

[0027] like Figures 2-8As shown, a water inlet pipe 16 and a water outlet pipe 17 are fixedly installed on the outer side of the cooling cover 6 respectively, and the water inlet pipe 16 and the water outlet pipe 17 are respectively connected to the output end of an external delivery pump and a water tank through pipelines. A plurality of fixing studs 20 are fixedly installed on one side of the cooling cover 6. A plurality of receiving grooves 18 are formed inside the cooling cover 6, and a plurality of through holes 19 are formed inside the receiving grooves 18. A first plug board 21 is fixedly installed on the top of the contact piece 7, a second plug board 22 is fixedly installed on the top of the first plug board 21, a guiding groove 23 is formed on the top of the second plug board 22. The first plug board 21 and the second plug board 22 are inserted and installed in one of the through holes 19, and the contact piece 7 is placed in the receiving groove 18. Connecting the cooling cover 6 to an external circulating water supply device through a pipeline can cooperate with multiple groups of contact pieces 7, the first plug board 21 and the second plug board 22 inside to cool the part of the electrode rod exposed outside the furnace body 1. At the same time, the arrangement of a plurality of contact pieces 7 can achieve closer contact with the electrode rod, ensuring the heat conduction and cooling efficiency. A plurality of fixing blocks 24 are fixedly installed on one side of the adjusting rod 9 relative to the cooling cover 6. A slope opposite to the top of the second plug board 22 is arranged on one side of the fixing block 24 relative to the cooling cover 6, and a guiding shaft 25 is fixedly installed, and the diameter of the guiding shaft 25 is larger than the diameter of the fixing block 24. The combination of the fixing block 24 and the guiding shaft 25 is inserted and installed in the corresponding guiding groove 23. The combination of the adjusting ring 8, the adjusting rod 9, the fixing block 24 and the guiding shaft 25 can achieve the synchronous displacement of a plurality of second plug boards 22, so as to synchronously adjust a plurality of contact pieces 7 to be received in the receiving grooves 18 for the disassembly and assembly of the electrode rod. At the same time, it can also achieve the synchronous movement of a plurality of contact pieces 7 out of the corresponding receiving grooves 18 and abut against the outer surface of the electrode rod.

[0028] It should be noted that the present utility model is a box-type graphitization furnace with a detachable heating electrode assembly. When installing the electrode, first insert a plurality of pull rods 15 on one side of the inner frame 10 into the corresponding through holes in the refractory brick 4 and pass through the other side of the refractory brick 4. At this time, the inner frame 10 will drive the sealing ring 14 on one side to be inserted into the sealing groove 12 on one side of the refractory brick 4 synchronously. At this time, one side of the end seat 5 can be inserted and installed on the positioning seat 11, and a plurality of fixing seats 13 outside the end seat 5 are inserted into one end of the corresponding pull rod 15, and the nut at one end of the pull rod 15 close to the fixing seat 13 is screwed in to initially limit the end seat 5. Subsequently, one end of the electrode can be passed through the cooling cover 6, the refractory brick 4, the sealing ring 14, and the corresponding carbon block brick 3 in sequence and extended into the furnace body 1. Then, the nut at one end of the pull rod 15 can be tightened to fix the end seat 5 on the positioning seat 11, and a plurality of pull rods 15 pull the inner frame 10 towards the refractory brick 4, so that the inner frame 10 drives the refractory brick 4 to continue to displace in the sealing groove 12 and is stuck between the sealing groove 12 and the electrode to play a sealing role. Finally, the adjusting ring 8 can be pushed towards the end seat 5, and the adjusting rod 9 on one side of the adjusting ring 8 drives the fixing block 24 and the guide shaft 25 to move in the guide groove 23 of the second plug board 22, and cooperates with the slope surface of the contact end of the fixing block 24 and the second plug board 22 to make the second plug board 22 drive the contact piece 7 to move towards the electrode through the first plug board 21, so that a plurality of contact pieces 7 are synchronously received or extended to abut against the outer surface of the electrode rod, realizing the fixation of the electrode. Finally, graphite powder is filled in the furnace head 2 and compacted;

[0029] During operation, the electrode rod passes through the through hole of the refractory brick 4 and the end seat 5, and the contact piece 7 closely adheres to the part of the electrode rod exposed outside the furnace body 1. The circulating water flows into the cooling cover 6 through the water inlet pipe 16 to cool the contact piece 7, thereby cooling the electrode and conducting the heat out, avoiding the part of the electrode outside the furnace head 2 from being oxidized at an accelerated rate due to high temperature and the contact resistance increasing.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A box-type graphitization furnace with a detachable heating electrode assembly, characterized in that: It includes a furnace body (1), with furnace heads (2) fixedly installed on both sides of the furnace body (1). The furnace head (2) further includes an inner wall (26) and an outer wall (27). The inner wall (26) includes multiple carbon bricks (3), and the outer wall (27) includes multiple refractory bricks (4). One side of multiple of the refractory bricks (4) is fixedly installed with an end seat (5). One side of the end seat (5) is fixedly installed with a cooling cover (6). Multiple contact pieces (7) are movably installed in the cooling cover (6). One side of the cooling cover (6) is fixedly installed with an adjusting ring (8). Multiple adjusting rods (9) are fixedly installed on the side of the adjusting ring (8) relative to the cooling cover (6). The side of the refractory brick (4) facing away from the end seat (5) is fixedly installed with an inner frame (10).

2. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 1, characterized in that: One side of multiple of the refractory bricks (4) is fixedly installed with a positioning seat (11), and a sealing groove (12) is opened on the side of the refractory brick (4) facing away from the positioning seat (11).

3. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 2, characterized in that: Multiple fixing seats (13) are fixedly installed on the outside of the end seat (5), and the end seat (5) is inserted through the positioning seat (11).

4. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 3, characterized in that: One side of the inner frame (10) is fixedly installed with a sealing ring (14). The outer side of the sealing ring (14) has a slope-like structure. Four ends of the inner frame (10) are respectively fixedly installed with pull rods (15). One side of the sealing ring (14) is inserted into the sealing groove (12). One side of the pull rod (15) passes through a through hole in the refractory brick (4) and one of the fixing seats (13) and is fixed by a nut.

5. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 1, characterized in that: A water inlet pipe (16) and a water outlet pipe (17) are respectively fixedly installed on the outside of the cooling cover (6). The water inlet pipe (16) and the water outlet pipe (17) are respectively connected to the output end of an external delivery pump and a water tank through pipes. Multiple fixing studs (20) are fixedly installed on one side of the cooling cover (6). Multiple storage grooves (18) are opened on the inner side of the cooling cover (6), and multiple through holes (19) are opened on the inner side of the storage grooves (18).

6. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 5, characterized in that: A first plug board (21) is fixedly installed at the top of the contact piece (7). A second plug board (22) is fixedly installed at the top of the first plug board (21). A guiding groove (23) is opened at the top of the second plug board (22). The first plug board (21) and the second plug board (22) are inserted through one of the through holes (19), and the contact piece (7) is placed in the storage groove (18).

7. The box-type graphitization furnace with a detachable heating electrode assembly according to claim 6, characterized in that: Multiple fixing blocks (24) are fixedly installed on the side of the adjusting rod (9) relative to the cooling cover (6). The side of the fixing block (24) relative to the cooling cover (6) is provided with a slope opposite to the top of the second plug board (22) and is fixedly installed with a guiding shaft (25). The diameter of the guiding shaft (25) is larger than the diameter of the fixing block (24). The combination of the fixing block (24) and the guiding shaft (25) is inserted through the corresponding guiding groove (23).

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