Calcination dust removal device for graphite-doped high-performance electrode paste

Abstract

The utility model provides a graphite-doped high-performance electrode paste calcining dust removal device which comprises a dust removal box used for dust removal of a calcining furnace, the dust removal box is communicated with the calcining furnace through a dust removal pipe, the dust removal pipe is communicated with a dust removal cylinder and an auxiliary cylinder, a rotating rod is rotatably connected in the dust removal pipe, and one end of the rotating rod is connected with a left plug capable of blocking the dust removal cylinder. The other end of the auxiliary cylinder is connected with a right plug capable of plugging the auxiliary cylinder; and when the rotating rod drives the left plug to rotate to block the dust removal cylinder, the dust removal pipe is communicated with the auxiliary cylinder. The device is convenient to operate, and the filter screen can be cleaned without shutdown, so that the dust removal effect in calcination can be effectively improved, the dust removal efficiency is not influenced, and the electrode paste calcination work is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode paste, in particular to a calcination dust removal device for graphite-doped high-performance electrode paste. Background Technique

[0002] At present, during the entire submerged arc furnace production process, the electrode is the heart. The current is input into the furnace through the electrode to generate an arc for submerged arc furnace smelting. The electrode plays the roles of conducting electricity and heat transfer. Most submerged arc furnace electrodes use self-baked electrodes, which are used, lengthened, shaped, and sintered. Components such as graphite fragments are added to the electrode paste. Graphite and the like have good electrical conductivity. Adding graphite fragments to the electrode paste can increase the electrical conductivity of the electrode. This can reduce the resistance and improve the current conduction efficiency, thereby improving the heating effect of the submerged arc furnace. During the forging of graphite-doped high-performance electrode paste, a large amount of dust is generated, so corresponding equipment is needed to achieve the dust removal work of the calcination furnace.

[0003] The patent with the publication number CN 217962018U discloses an environment-friendly electrode paste raw material calcination flue gas dust removal device, which includes a purification box b and a purification box a. One end of the purification box b away from the connecting pipe is communicated with a discharge pipe. A purification mechanism is arranged inside the purification box b. A smoke filter plate is fixed on the inner side wall of the purification box a, and a cleaning mechanism for cleaning the surface of the dust filter plate is arranged inside the purification box a. However, the above patent has the following problems: When the filter screen is blocked, it is impossible to clean the filter screen without stopping the machine, which affects the production efficiency. Summary of the Utility Model

[0004] In order to solve the problems existing in the above-mentioned prior art, a calcination dust removal device for graphite-doped high-performance electrode paste is provided. The device is convenient to operate, can realize the cleaning work of the filter screen without stopping the machine, thereby effectively improving the dust removal effect during calcination, and at the same time will not affect the dust removal efficiency, facilitating the electrode paste calcination work.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] The utility model provides a calcination dust removal device for graphite-doped high-performance electrode paste, which includes a dust removal box for dust removal of the calcination furnace. The dust removal box and the calcination furnace are connected and communicated through a dust removal pipe. The dust removal pipe is connected and communicated with a dust removal cylinder and an auxiliary cylinder. A rotating rod is rotatably connected inside the dust removal pipe. One end of the rotating rod is connected with a left plug that can block the dust removal cylinder, and the other end is connected with a right plug that can block the auxiliary cylinder; when the rotating rod drives the left plug to rotate to block the dust removal cylinder, at this time the dust removal pipe and the auxiliary cylinder are connected and communicated.

[0007] Preferably, the rotating rod is connected and communicated with the dust removal pipe through a torsion spring. Under the action of the torsion spring, the left plug blocks the dust removal cylinder.

[0008] Preferably, the outer walls of the dust removal cylinder and the auxiliary cylinder are filter nets capable of filtering dust.

[0009] Preferably, the dust removal cylinder is rotationally connected to a spline shaft, a brush plate is slidably sleeved on the spline shaft, and a brush capable of cleaning the filter net is detachably connected to the brush plate.

[0010] Preferably, spiral guide grooves are formed in the inner wall of the dust removal cylinder, a guide rod is fixedly connected to the brush plate, and the guide rod is movably arranged in the guide grooves.

[0011] Preferably, the dust removal box is connected to a motor capable of driving the spline shaft to rotate, and the brush plate is connected to a push rod capable of driving the left plug to rise.

[0012] Preferably, a dust outlet is formed at the bottom end of the dust removal cylinder, a flip cover is rotationally connected to the dust outlet, the flip cover is connected to the dust removal cylinder through a torsion spring, and when the brush plate descends, the flip cover can be driven to rotate to open the dust outlet.

[0013] Preferably, a pressure rod is slidably connected to the dust removal cylinder, the pressure rod rotates with the dust removal cylinder through a compression spring; a small gear is rotationally connected to the dust removal cylinder, the pressure rod meshes with the small gear, a large gear is coaxially connected to the flip cover, and the large gear meshes with the small gear.

[0014] Preferably, a branch pipe is communicated with the dust removal pipe, a detection plate is slidably connected in the branch pipe, the detection plate is connected to the dust removal pipe through a spring, a proximity switch is connected to the branch pipe on one side of the detection plate, and the proximity switch can drive the motor to work.

[0015] Preferably, a first belt pulley is fixedly sleeved at one end of the spline shaft after passing through the dust removal cylinder, the motor is connected to a second belt pulley, and a belt is sleeved on the first belt pulley and the second belt pulley.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. The present utility model is provided with an auxiliary cylinder and a dust removal cylinder. The dust removal cylinder and the dust removal pipe are in a communicating state and can perform dust removal work. When the dust removal cylinder is blocked, at this time, the left plug can block the dust removal cylinder, while the right plug opens, and dust removal work can be carried out through the auxiliary cylinder. The operation is convenient, and the cleaning work of the filter screen can be realized without stopping the machine, so that the dust removal effect during calcination can be effectively improved, and at the same time, the dust removal efficiency is not affected, which is convenient for the calcination work of electrode paste.

[0018] 2. The utility model is provided with a brush plate, and the spline shaft can drive the brush plate to rotate. Due to the limitation of the guiding groove, when the brush plate rotates, the guiding groove can make the brush plate descend while rotating, so as to clean the dust removal cylinder. When the brush plate descends to the lowest end, the flip cover can be driven to open by the pressing rod, so that the dust in the dust removal cylinder can fall into the collection box, realizing the automatic cleaning work of the dust removal cylinder, and effectively improving the dust removal quality and efficiency.

[0019] 3. The utility model is provided with a proximity switch. When a blockage occurs, with the increase of air pressure, the detection plate can be pushed to move. When the detection plate moves to one side of the proximity switch and the proximity switch receives the signal, the motor can be driven to work, so as to clean the dust removal cylinder, realize the real-time detection of the blockage state of the dust removal cylinder, and facilitate the cleaning of the dust removal cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 is the overall three-dimensional view of the present utility model;

[0022] Figure 2 is the overall front view of the present utility model;

[0023] Figure 3 is Figure 1 the partial structural schematic diagram of the dust removal box in

[0024] Figure 4 is Figure 1 the partial structural schematic diagram of the dust removal box in (working state);

[0025] Figure 5 is Figure 3 the enlarged partial structural diagram of the flip cover in

[0026] DESCRIPTION OF THE REFERENCE NUMERALS:

[0027] 1 Calcining furnace; 2 Dust removal pipe; 3 Dust removal box; 4 Filter pipe; 5 Filter box; 6 Branch pipe; 7 Detection plate; 8 Proximity switch; 9 Left plug; 10 Rotating rod; 11 Right plug; 12 Jacking rod; 13 Brush plate; 14 Spline shaft; 15 Guiding groove; 16 Dust removal cylinder; 17 Motor; 18 Belt; 19 Flip cover; 20 Collection box; 21 Compression spring; 22 Auxiliary cylinder; 23 Pressing rod; 24 Small gear; 25 Large gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0029] Embodiment 1

[0030] As Figures 1 - 5 shown, this embodiment proposes a calcination dust removal device for graphite-doped high-performance electrode paste, which includes a dust removal box 3 for dust removal of the calcination furnace 1. The dust removal box 3 and the calcination furnace 1 are connected through a dust removal pipe 2. The dust removal box 3 is connected to a filtration box 5 through a filtration pipe 4. The dust removal box 3 is used to remove the dust generated during calcination, and the filtration box 5 is used for further filtration work.

[0031] The dust removal pipe 2 is connected to a dust removal cylinder 16 and an auxiliary cylinder 22. Both the dust removal cylinder 16 and the auxiliary cylinder 22 are fixedly connected to the dust removal box 3. The gas passing through the dust removal pipe 2 will enter the dust removal box 3 only after passing through the dust removal cylinder 16 or the auxiliary cylinder 22, and then will enter the filtration box 5 through the filtration pipe 4.

[0032] A rotating rod 10 is rotatably connected inside the dust removal pipe 2. One end of the rotating rod 10 is fixedly connected to a left plug 9 that can block the dust removal cylinder 16, and the other end is fixedly connected to a right plug 11 that can block the auxiliary cylinder 22. Openings are provided at the upper ends of both the dust removal cylinder 16 and the auxiliary cylinder 22, and the two openings are respectively matched with the left plug 9 and the right plug 11, so that the dust removal cylinder 16 and the auxiliary cylinder 22 can be blocked.

[0033] When the rotating rod 10 drives the left plug 9 to rotate to block the dust removal cylinder 16, at this time, the rotating rod 10 simultaneously drives the right plug 11 to rotate, and the right plug 11 opens the auxiliary cylinder 22. At this time, the dust removal pipe 2 is connected to the auxiliary cylinder 22, and during daily use, the dust removal pipe 2 is connected to the dust removal cylinder 16, and the dust removal pipe 2 is not connected to the auxiliary cylinder 22.

[0034] Therefore, when cleaning the dust removal pipe 2, at this time, the auxiliary cylinder 22 is used for gas filtration, and the cleaning work of the filter screen can be realized without stopping the machine, thereby effectively improving the dust removal effect during calcination, and at the same time, it will not affect the dust removal efficiency, which is convenient for the electrode paste calcination work.

[0035] The rotating rod 10 is connected to the dust removal pipe 2 through a torsion spring. Under the elastic force of the torsion spring, the left plug 9 blocks the dust removal cylinder 16.

[0036] The outer walls of the dust removal cylinder 16 and the auxiliary cylinder 22 are filter meshes that can perform dust filtration. The dust in the gas can be filtered and intercepted through the filter meshes.

[0037] The dust removal cylinder 16 is rotatably connected to a spline shaft 14. A brush plate 13 is slidably sleeved on the spline shaft 14. When the spline shaft 14 rotates, it can drive the brush plate 13 to rotate simultaneously, and the brush plate 13 can slide relative to the spline shaft 14. The brush plate 13 is detachably connected with a brush for cleaning the filter screen.

[0038] A spiral guide groove 15 is formed on the inner wall of the dust removal cylinder 16. The brush plate 13 is fixedly connected with a guide rod, and the guide rod is movably arranged in the guide groove 15. When the spline shaft 14 drives the brush plate 13 to rotate, the guide rod can slide in the guide groove 15. Due to the arrangement of the guide groove 15, the brush plate 13 can be driven to descend, enabling the brush plate 13 to rotate and descend simultaneously to clean the dust removal cylinder 16.

[0039] To prevent the guide rod from disengaging when sliding in the guide groove 15, the guide rod can be a T-shaped rod, or the guide rod can be set long enough, or the guide groove 15 can be symmetrically formed. At this time, two guide rods are provided and are respectively arranged in the two guide grooves 15.

[0040] The guide groove 15 is a solid bottom. The inner wall of the dust removal cylinder 16 is recessed inward to form the guide groove 15, but the dust removal cylinder 16 is not connected to the dust removal box 3 through the guide groove 15, so the gas will not flow out through the guide groove 15.

[0041] An outlet is formed at the bottom end of the dust removal cylinder 16. The outlet is rotatably connected with a flip cover 19. The flip cover 19 is connected to the dust removal cylinder 16 through a torsion spring. When the brush plate 13 descends, it can drive the flip cover 19 to rotate to open the outlet. A collection box 20 is also arranged in the dust removal box 3. The collection box 20 can collect dust and is located below the dust removal cylinder 16.

[0042] A pressure rod 23 is slidably connected to the dust removal cylinder 16. The pressure rod 23 is rotatably connected to the dust removal cylinder 16 through a compression spring 21. A small gear 24 is rotatably connected to the dust removal cylinder 16. One side of the pressure rod 23 is meshed with the small gear 24 through a rack. The flip cover 19 is coaxially connected with a large gear 25, and the large gear 25 is meshed with the small gear 24.

[0043] The upper end of the compression spring 21 is connected to the pressure rod 23, and the lower end of the compression spring 21 is connected to the dust removal cylinder 16. Under the action of the compression spring 21, the flip cover 19 can keep the outlet in a closed state at this time. When the pressure rod 23 descends, it can drive the small gear 24 to rotate, and the small gear 24 can drive the flip cover 19 to rotate through the large gear 25 to open the outlet for dust discharge.

[0044] When the brush plate 13 descends to the lowest end, it can drive the flip cover 19 to open through the pressure rod 23, so that the dust in the dust removal cylinder 16 can fall into the collection box 20, realizing the automatic cleaning work of the dust removal cylinder 16 and effectively improving the dust removal quality and efficiency.

[0045] The dust removal box 3 is connected to a motor 17 that can drive the spline shaft 14 to rotate. The brush plate 13 is connected to a push rod 12 that can drive the left plug 9 to rise. In the initial state, the brush plate 13 is located at the uppermost end of the dust removal cylinder 16. At this time, the left plug 9 can be lifted upward by the push rod 12, and the dust removal pipe 2 and the dust removal cylinder 16 are in a communicating state.

[0046] One end of the spline shaft 14 passes through the dust removal cylinder 16 and is fixedly sleeved with a first belt pulley. The motor 17 is connected to a second belt pulley, and the first belt pulley and the second belt pulley are sleeved with a belt 18.

[0047] Embodiment 2

[0048] Reference appendix Figures 1 - 5 The other structures are the same as those in Embodiment 1. The difference is that in this embodiment, the driving problem of the motor is considered.

[0049] The dust removal pipe 2 is communicated with a branch pipe 6. A detection plate 7 is slidably connected in the branch pipe 6. The detection plate 7 is connected to the dust removal pipe 2 through a spring. The branch pipe 6 is connected with a proximity switch 8 on one side of the detection plate 7. The proximity switch 8 can drive the motor 17 to work.

[0050] When a blockage occurs, as the air pressure increases, the detection plate 7 can be pushed to move. When the detection plate 7 moves to one side of the proximity switch 8, after the proximity switch 8 receives the signal, it can drive the motor 17 to work, so as to realize the cleaning of the dust removal cylinder 16, and can realize the real-time detection of the blockage state of the dust removal cylinder 16, which is convenient for cleaning the dust removal cylinder 16.

[0051] A proximity switch is a position switch that can be operated without mechanical direct contact with moving parts. When an object approaches the sensing surface of the proximity switch to the operating distance, the switch can act without mechanical contact and applying any pressure, so as to drive a DC electrical appliance or provide a control instruction for a computer (PLC) device. Both the proximity switch 8 and the motor 17 are connected to a controller. When the proximity switch 8 detects the detection plate 7, a corresponding signal can be transmitted to the controller at this time, and the controller controls the motor 17 to work.

[0052] The specific working process is as follows: When calcining in the calcining furnace 1, the generated gas enters the dust removal pipe 2, then enters the dust removal box 3 through the dust removal cylinder 16, and then enters the filtration box 5 through the filter pipe 4 to realize the gas treatment work. As the dust removal work progresses, when the dust removal cylinder 16 is blocked to a certain extent, the air pressure will increase at this time. The air pressure can push the detection plate 7 to move. When the detection plate 7 moves to one side of the proximity switch 8, after the proximity switch 8 receives the signal, it can drive the motor 17 to work.

[0053] The motor 17 drives the spline shaft 14 to rotate through the belt 18. When the spline shaft 14 drives the brush plate 13 to rotate, the guide rod can slide in the guide groove 15. Due to the setting of the guide groove 15, the brush plate 13 can be driven to descend, enabling the brush plate 13 to descend while rotating, thus realizing the cleaning of the dust removal cylinder 16.

[0054] When the brush plate 13 descends to the lowest end, it can drive the pressure rod 23 to move downward. The pressure rod 23 drives the small gear 24 to rotate, and the small gear 24 drives the flip cover 19 to open through the large gear 25, so that the dust in the dust removal cylinder 16 can fall into the collection box 20. During this process, under the action of the torsion spring, the left plug 9 seals the dust removal cylinder 16, and the right plug 11 opens the auxiliary cylinder 22. The dust removal pipe 2 is connected to the auxiliary cylinder 22, and the auxiliary dust removal work is carried out through the auxiliary cylinder 22.

[0055] After that, the motor 17 drives the spline shaft 14 to reverse, driving the brush plate 13 to reset. The brush plate 13 drives the left plug 9 to rise through the ejector rod 12, making the dust removal pipe 2 communicate with the dust removal cylinder 16, and the right plug 11 seals the auxiliary cylinder 22. At this time, the dust removal work is carried out through the dust removal cylinder 16.

[0056] The main raw materials of graphite electrodes are graphite powder and coke powder. Among them, the graphite powder requires fine particle size, high crystallinity, and low ash content, while the coke powder requires low sulfur and phosphorus content and uniform particle size. In the processing of graphite-doped high-performance electrode paste, after the mixing of raw materials and graphitization treatment, the raw materials are mixed and then subjected to graphitization treatment to form a uniform graphite slurry.

[0057] Then the graphite slurry is formed, usually using the processes of vibration compaction molding or die pressing molding to form a formed blank. Subsequently, the formed blank undergoes a calcination process, and the formed blank is calcined at a high temperature to improve its crystallinity and density, thereby improving the electrical conductivity and wear resistance of the graphite electrode.

[0058] Next is the processing link. The graphite electrode blank after calcination needs to be processed, including processes such as turning, milling, and wire cutting, and finally a graphite electrode product that meets the requirements is formed.

[0059] Therefore, in the production of graphite electrodes, due to the inherent characteristics of the raw materials, a large amount of waste gas with dust will be generated during calcination. If the waste gas is not treated, it will pollute the environment. Therefore, the dust removal box 3 can be applied to the calcination furnace 1. In addition, when the raw materials are crushed, gas with dust will also be generated, and the dust removal box 3 can also be applied to the crushing stage.

[0060] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A high-performance electrode paste calcination dust removal device doped with graphite, comprising a dust removal box (3) for dust removal of a calcination furnace (1), wherein the dust removal box (3) and the calcination furnace (1) are connected through a dust removal pipe (2), and is characterized in that, The dust removal pipe (2) is communicated with a dust removal cylinder (16) and an auxiliary cylinder (22). A rotating rod (10) is rotatably connected inside the dust removal pipe (2). One end of the rotating rod (10) is connected with a left plug (9) capable of blocking the dust removal cylinder (16), and the other end is connected with a right plug (11) capable of blocking the auxiliary cylinder (22). When the rotating rod (10) drives the left plug (9) to rotate to block the dust removal cylinder (16), at this time, the dust removal pipe (2) is communicated with the auxiliary cylinder (22).

2. The calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 1, characterized in that, The rotating rod (10) is communicated with the dust removal pipe (2) through a torsion spring. Under the action of the torsion spring, the left plug (9) blocks the dust removal cylinder (16).

3. The calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 1, characterized in that, The outer walls of the dust removal cylinder (16) and the auxiliary cylinder (22) are filter nets capable of filtering dust.

4. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 3, characterized in that, The dust removal cylinder (16) is rotatably connected with a spline shaft (14). A brush plate (13) is slidably sleeved on the spline shaft (14). The brush plate (13) is detachably connected with a brush capable of cleaning the filter net.

5. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 4, characterized in that, A spiral guide groove (15) is formed in the inner wall of the dust removal cylinder (16). The brush plate (13) is fixedly connected with a guide rod, and the guide rod is movably arranged in the guide groove (15).

6. The calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 4, wherein, The dust removal box (3) is connected with a motor (17) capable of driving the spline shaft (14) to rotate. The brush plate (13) is connected with a push rod (12) capable of driving the left plug (9) to rise.

7. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 4, characterized in that, An air outlet is formed at the bottom end of the dust removal cylinder (16). A flip cover (19) is rotatably connected to the air outlet. The flip cover (19) is connected with the dust removal cylinder (16) through a torsion spring. When the brush plate (13) descends, it can drive the flip cover (19) to rotate to open the air outlet.

8. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 7, characterized in that, A pressure rod (23) is slidably connected to the dust removal cylinder (16). The pressure rod (23) rotates with the dust removal cylinder (16) through a compression spring (21). The dust removal cylinder (16) is rotatably connected with a small gear (24). The pressure rod (23) meshes with the small gear (24). The flip cover (19) is coaxially connected with a large gear (25), and the large gear (25) meshes with the small gear (24).

9. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 6, characterized in that, The dust removal pipe (2) is communicated with a branch pipe (6). A detection plate (7) is slidably connected inside the branch pipe (6). The detection plate (7) is connected with the dust removal pipe (2) through a spring. The branch pipe (6) is connected with a proximity switch (8) located on one side of the detection plate (7), and the proximity switch (8) can drive the motor (17) to work.

10. A calcination dust removal device for a graphite-doped high-performance electrode paste according to claim 6, characterized in that, One end of the spline shaft (14) passes through the dust removal cylinder (16) and is fixedly sleeved with a first belt pulley. The motor (17) is connected with a second belt pulley, and the first belt pulley and the second belt pulley are sleeved with a belt (18).

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