Graphite-doped high-performance electrode paste raw material mixing device

Abstract

The utility model provides a graphite-doped high-performance electrode paste raw material mixing device which comprises a mixing box, the mixing box is communicated with a plurality of blanking boxes, blanking boxes used for receiving materials are connected in the blanking boxes in a sliding mode, and the blanking boxes are connected with baffles capable of blocking the positions between the blanking boxes. The discharging box is provided with a discharging opening communicated with the mixing box, and when the discharging box slides, the discharging box can be communicated with the discharging opening or move to one side of the discharging opening. The device is convenient to operate, intermittent discharging work of raw materials can be achieved, meanwhile, quantitative discharging of the raw materials can be achieved, feeding work of different raw materials with different feeding ratios can be achieved, and therefore mixing of the raw materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode paste, in particular to a graphite-doped high-performance electrode paste raw material mixing device. Background Art

[0002] At present, in the whole production process of electric arc furnace in China, the electrode is the heart. The current is input into the furnace through the electrode, and an arc is generated for electric arc furnace smelting. The electrode plays a role in conducting electricity and transferring heat. Graphite and other ingredients are added to the electrode paste. Graphite and other ingredients have good electrical conductivity. Adding graphite to the electrode paste can increase the electrical conductivity of the electrode. This can reduce resistance and improve current conduction efficiency, thereby improving the heating effect of the electric arc furnace. Among them, graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, and coal tar as a binder. They are made by calcination, batching, kneading, pressing, roasting, graphitization, and machining. Different raw material ratios can easily affect the quality of the electrode paste.

[0003] The patent with the publication number CN218637286U discloses a mixing configuration production device for electrode paste raw material processing, including a bottom plate, a mixing box is installed on the upper surface of the bottom plate, feeding mechanisms are installed on both sides of the mixing box, an annular plate 1 is installed on the upper surface of the mixing box, an annular plate 2 is installed below the annular plate 1 and located inside the mixing box, a sliding plate is slidably installed between the annular plate 2 and the annular plate 1, and a plurality of stirring shafts are rotatably connected to the lower surface of the sliding plate. A motor 1 is fixedly installed on the upper surface of the annular plate 1, a cam is installed on the output end of the motor 1, and the cam surface is in contact with the sliding plate surface.

[0004] However, the device still has the following problems. The structure described in the comparative document is continuous feeding, which is easy to cause material accumulation, resulting in uneven mixing and increasing the subsequent mixing time; and the various materials are fluid, and the proportion of material addition cannot be well controlled, and quantitative feeding cannot be achieved, resulting in an inappropriate material ratio, which affects the quality of subsequent processing of the electrode paste. Utility Model Content

[0005] In order to solve the problems existing in the above-mentioned prior art, a graphite doped high-performance electrode paste raw material mixing device is provided. The device is easy to operate, can realize intermittent discharge of raw materials, can realize quantitative discharge of raw materials, and can realize the feeding of different raw materials with different feeding ratios, so as to facilitate the mixing of raw materials.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The utility model proposes a graphite-doped high-performance electrode paste raw material mixing device, comprising a mixing box, wherein the mixing box is connected to a plurality of feed boxes, a feed box for receiving materials is slidably connected inside the feed box, and the feed box is connected to a baffle that can seal the feed box and the feed box; the feed box is provided with a feed port connected to the mixing box, and when the feed box slides, the feed box can be connected to the feed port or moved to one side of the feed port.

[0008] Preferably, the material box has openings at both upper and lower ends.

[0009] Preferably, a guide plate arranged in an inclined direction is fixedly connected inside the lower material box, and a discharge port for discharging materials is formed between the lower material box and the guide plate.

[0010] Preferably, the baffle is arranged in a horizontal direction and fixedly connected to the discharge box.

[0011] Preferably, when the lower material box moves to a point where the lower end opening of the lower material box is connected to the discharge port, the baffle plate blocks the discharge port.

[0012] Preferably, when the lower material box moves to a point where the lower end opening of the lower material box is located at one side of the lower material port, the upper end opening of the lower material box is connected to the discharge port.

[0013] Preferably, the material box is slidably connected with an adjusting block which can adjust the opening size of the material box, the material box is threadedly connected with an adjusting rod, and the adjusting rod and the adjusting block are rotatably connected.

[0014] Preferably, the material discharge box is provided with a vertical slot, a sliding rod is slidably connected in the vertical slot, a connecting rod is hinged to the sliding rod, and the other end of the connecting rod is hinged to the material discharge box.

[0015] Preferably, the discharge box is rotatably connected to a cylindrical cam, the cylindrical cam is provided with horizontal grooves at both ends and an inclined groove in the middle, the inclined groove and the horizontal groove are sequentially connected end to end to form a through slide groove, and the slide rod is slidably arranged in the slide groove.

[0016] Preferably, a stirring rod is rotatably connected in the mixing box, the stirring rod fixing sleeve is provided with a toothless gear, the cylindrical cam fixing sleeve is provided with a large gear, the large gear and the toothless gear are meshed, and the mixing box is connected to a motor for driving the stirring rod to rotate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model is provided with a slidable material discharge box. When the material discharge box slides in the horizontal direction, it can be connected with the material discharge box or the material discharge port. When it is connected with the material discharge box, feeding can be realized, and when it is connected with the material discharge port, discharging can be realized. The material receiving amount of the material discharge box can also be adjusted by the arranged adjustment block. The operation is convenient, and the intermittent discharging of raw materials can be realized. At the same time, the quantitative discharging of raw materials can be realized, and the feeding work of different raw materials with different feeding ratios can be realized, so as to facilitate the mixing of raw materials.

[0019] 2. The utility model is provided with a cylindrical cam. When the cylindrical cam rotates, when the slide bar slides in the inclined groove, it can drive the slide bar to move in the vertical direction, thereby driving the discharge box to move in the horizontal direction. When the slide bar slides in the horizontal groove, the discharge box does not move at this time, so that the material has enough time for receiving and discharging the material. The cylindrical cam only needs to rotate in one direction to realize the reciprocating motion of the discharge box, which is convenient for control.

[0020] 3. The utility model is provided with a toothless gear. The stirring rod rotates several times before the cylindrical cam is driven to rotate one circle, thereby ensuring that the material in the mixing box has sufficient stirring time and preventing excessive feeding at one time. By reasonably setting the number of teeth of the toothless gear, the frequency of discharging can be adjusted to facilitate the material mixing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is an overall stereogram of the utility model;

[0023] Figure 2 This is the overall front view of the utility model;

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle and lower material boxes;

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle and lower material boxes (under working state);

[0026] Figure 5 yes Figure 3 Top view of the structure of the medium and large gears.

[0027] Description of reference numerals:

[0028] 1 mixing box; 2 stirring rod; 3 discharge box; 4 discharge pipe; 5 motor; 6 cylindrical cam; 7 synchronous belt; 8 baffle; 9 discharge box; 10 adjustment block; 11 adjustment rod; 12 discharge port; 13 vertical slot; 14 connecting rod; 15 sliding rod; 16 inclined slot; 17 horizontal slot; 18 large gear; 19 toothless gear; 20 rotating shaft; 21 discharge valve. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention. Embodiment 1

[0030] like Figures 1 to 4 As shown, this embodiment proposes a graphite-doped high-performance electrode paste raw material mixing device, including a mixing box 1, which is connected to a plurality of feed boxes 3. A plurality of feed boxes 3 can be provided, and different feed boxes 3 can be placed with different materials, thereby facilitating the feeding of several materials and facilitating the mixing of electrode paste raw materials.

[0031] A material box 9 for receiving materials is slidably connected inside the material box 3, and the material box 9 is connected to a baffle 8 that can seal the material box 3 and the material box 9; the material box 3 is provided with a material opening 12 connected to the mixing box 1, and when the material box 9 slides, the material box 9 can be connected to the material opening 12 or moved to the side of the material opening 12.

[0032] A guide plate arranged in an inclined direction is fixedly connected inside the material discharge box 3, and a discharge port for discharging materials is formed between the material discharge box 3 and the guide plate.

[0033] The upper and lower ends of the material box 9 are both provided with openings, wherein the upper opening can be connected to the discharge port, and the material in the material box 3 can enter the material box 9 through the discharge port and the upper opening of the material box 9, thereby realizing the material receiving work.

[0034] The baffle plate 8 is arranged in a horizontal direction and is fixedly connected to the material discharge box 9. The size of the baffle plate 8 is suitable enough to facilitate the blocking of the material discharge port.

[0035] When the lower material box 9 moves to a point where the lower end opening of the lower material box 9 is connected to the discharge port 12, the baffle 8 blocks the discharge port. At this time, the lower material box 9 and the discharge box 3 are no longer connected, and the material in the lower material box 9 can enter the mixing box 1 to realize the discharge of the material.

[0036] When the lower material box 9 moves to a point where the lower opening of the lower material box 9 is located on one side of the lower material port 12 , the lower material box 9 and the lower material port 12 are no longer connected, and the upper opening of the lower material box 9 is connected to the discharge port, so that the material can be received, and the material in the lower material box 3 can enter the lower material box 9 .

[0037] By providing a slidable material discharge box 9, when the material discharge box 9 slides in the horizontal direction, it can be connected with the material discharge box 3 or the material discharge port 12. When it is connected with the material discharge box 3, it can receive the material, and when it is connected with the material discharge port 12, it can discharge the material.

[0038] The material box 9 is slidably connected to an adjusting block 10 which can adjust the opening size of the material box 9. The material box 9 is threadedly connected to an adjusting rod 11. The adjusting rod 11 and the adjusting block 10 are rotatably connected. By rotating the adjusting rod 11, the position of the adjusting block 10 in the material box 9 can be adjusted, thereby adjusting the amount of material received by the material box 9.

[0039] The adjusting block 10 can also be used to adjust the material receiving amount of the material discharge box 9, which is easy to operate and can realize intermittent discharge of raw materials, quantitative discharge of raw materials, and feeding of different raw materials with different feed ratios, thereby facilitating the mixing of raw materials.

[0040] The material box 3 is provided with a vertical slot 13, which is opened in the vertical direction. A slide rod 15 is slidably connected in the vertical slot 13, and the slide rod 15 is hinged with a connecting rod 14. The other end of the connecting rod 14 is hinged to the material box 9. When the slide rod 15 slides back and forth in the vertical slot 13, the material box 9 can be driven to reciprocate in the horizontal direction through the connecting rod 14.

[0041] The discharge box 3 is rotatably connected to the cylindrical cam 6, and the cylindrical cam 6 is provided with horizontal grooves 17 at both ends and an inclined groove 16 in the middle. The inclined groove 16 and the horizontal groove 17 are connected end to end in sequence to form a through slide. The slide rod 15 is slidably arranged in the slide, and the inclined grooves 16 on both sides are symmetrically arranged, wherein the inclined groove 16 at one end can drive the slide rod 15 to move upward, and the inclined groove 16 at the other end can drive the slide rod 16 to move downward.

[0042] By reasonably setting the length of the inclined groove 16 and the length of the horizontal groove 17, it is ensured that when the lower material box 9 moves just below the discharge port or just above the discharge port 12, the slide bar 15 is located at the lowermost end and the uppermost end of the vertical groove 13, and the slide bar 15 moves just to the position of the horizontal groove 17. The setting of the horizontal groove 17 facilitates sufficient time for receiving and discharging materials.

[0043] When the cylindrical cam 6 rotates, when the slide bar 15 slides in the inclined groove 16, it can drive the slide bar 15 to move in the vertical direction, thereby driving the discharge box 9 to move in the horizontal direction. When the slide bar 15 slides in the horizontal groove 17, the discharge box 9 does not move at this time, so that the material has enough time to receive and discharge the material. The cylindrical cam 6 only needs to rotate in one direction to realize the reciprocating motion of the discharge box 9, which is convenient for control.

[0044] The lower end of the mixing box 1 is connected to a discharge pipe 4, and the discharge pipe 4 is connected to a discharge valve 21. Discharging can be achieved by controlling the opening of the discharge valve 21. Embodiment 2

[0045] Reference Figure 5 , other structures are the same as those in the first embodiment, except that the driving problem of the cylindrical cam is taken into consideration in this embodiment.

[0046] The unloading box 3 is rotatably connected with a rotating shaft 20, and the rotating shaft 20 and the cylindrical cam 6 are fixedly connected. The rotating shaft 20 is fixedly sleeved with a pulley, and a synchronous belt 7 is sleeved between several pulleys. Therefore, when one of the rotating shafts 20 rotates, it can drive several rotating shafts 20 at the same time, thereby driving several cylindrical cams 6 to rotate at the same time.

[0047] A stirring rod 2 is rotatably connected inside the mixing box 1, and the stirring rod 2 is set in a vertical direction. The mixing work of the materials in the mixing box 1 can be achieved through the set stirring rod 2. The stirring rod 2 is fixed with a toothless gear 19, and one of the rotating shafts 20 is fixed with a large gear 18, and the large gear 18 and the toothless gear 19 are meshed.

[0048] The mixing box 1 is connected to a motor 5 for driving the stirring rod 2 to rotate. The motor 5 is fixedly connected to the outer wall of the mixing box 1. After the lower end of the stirring rod 2 passes through the mixing box 1, it is connected to the output shaft of the motor 5 through a coupling. The stirring rod 2 can be driven to rotate by the motor 5.

[0049] The stirring rod 2 rotates several times before the cylindrical cam 6 rotates one circle, thereby ensuring that the material in the mixing box 1 has sufficient stirring time and preventing excessive feeding at one time. By reasonably setting the number of teeth of the toothless gear 19, the frequency of discharging can be adjusted to facilitate the material mixing work.

[0050] The specific working process is as follows: by putting different raw materials into the discharge box 3, and then rotating the adjusting rod 11, the adjusting rod 11 drives the adjusting block 10 to rotate, and adjusts the amount of material that can be received by the discharge box 9 each time. According to the proportion of the required raw materials, adjust the feed amount of the corresponding discharge box 9, thereby realizing the quantitative and proportional feeding of different raw materials.

[0051] Start the motor 5, which drives the stirring rod 2 to rotate, thereby mixing the raw materials in the mixing box 1. At the same time, the stirring rod 2 drives the toothless gear 19 to rotate, and the toothless gear 19 drives one of the cylindrical cams 6 to rotate through the large gear 18, and then drives several cylindrical cams 6 to rotate simultaneously through the synchronous belt 7.

[0052] When the slide bar 15 slides in the horizontal groove 17 below, the height of the slide bar 15 will not change. At this time, when the lower end opening of the feed box 9 is located on the side of the feed port 12, the feed box 9 and the feed port 12 are not connected, and the upper end opening of the feed box 9 is connected to the discharge port, so that the raw materials can be received, and the raw materials in the feed box 3 can enter the feed box 9.

[0053] When the slide bar 15 slides in the inclined groove 16, the slide bar 15 can drive the discharge box 9 to move through the connecting rod 14. When the discharge box 9 moves to the point where the lower end opening of the discharge box 9 is connected to the discharge port 12, the baffle 8 blocks the discharge port. At this time, the discharge box 9 and the discharge box 3 are no longer connected, and the raw materials in the discharge box 9 can enter the mixing box 1 to realize the discharge of the raw materials.

[0054] When processing graphite electrodes, the selection of raw materials is a key link in the production of graphite electrodes. The main raw materials of graphite electrodes are graphite powder and coke powder. Graphite powder requires fine particle size, high crystallinity, and low ash content, while coke powder requires low sulfur and phosphorus content and uniform particle size. The selection of these raw materials directly affects the quality and performance of graphite electrodes.

[0055] Secondly, after the raw materials are mixed and graphitized, the corresponding raw materials are added into the mixing box 1 through the feed box 3, and the mixing of the raw materials is realized through the mixing box 1. After the raw materials are mixed, they are graphitized to form a uniform graphite slurry. Then the graphite slurry is molded, usually by vibration molding or compression molding process, to form a molding blank.

[0056] Subsequently, the formed blank undergoes a calcination process, in which the formed blank is calcined at a high temperature to improve its crystallinity and density, thereby improving the conductivity and wear resistance of the graphite electrode.

[0057] The next step is the processing. The calcined graphite electrode blank needs to be processed, including turning, milling, wire cutting and other processes, to finally form a graphite electrode product that meets the requirements.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A graphite-doped high-performance electrode paste raw material mixing device, comprising a mixing box (1), characterized in that: The mixing box (1) is connected to a plurality of material discharge boxes (3), a material discharge box (9) for receiving materials is slidably connected inside the material discharge box (3), and the material discharge box (9) is connected to a baffle (8) capable of sealing between the material discharge box (3) and the material discharge box (9); the material discharge box (3) is provided with a material discharge port (12) connected to the mixing box (1), and when the material discharge box (9) slides, the material discharge box (9) can be connected to the material discharge port (12) or moved to the side of the material discharge port (12).

2. The graphite-doped high-performance electrode paste raw material mixing device according to claim 1, characterized in that: The material discharge box (9) is provided with openings at both the upper and lower ends.

3. The graphite-doped high-performance electrode paste raw material mixing device according to claim 2, characterized in that: A guide plate arranged in an inclined direction is fixedly connected to the lower material box (3), and a discharge port for discharging materials is formed between the lower material box (3) and the guide plate.

4. The graphite-doped high-performance electrode paste raw material mixing device according to claim 3, characterized in that: The baffle (8) is arranged in a horizontal direction and is fixedly connected to the material discharge box (9).

5. The graphite-doped high-performance electrode paste raw material mixing device according to claim 4, characterized in that: When the lower material box (9) moves to a point where the lower end opening of the lower material box (9) is connected to the lower material outlet (12), the baffle (8) blocks the outlet.

6. The graphite-doped high-performance electrode paste raw material mixing device according to claim 4, characterized in that: When the lower material box (9) moves to a point where the lower end opening of the lower material box (9) is located on one side of the lower material outlet (12), the upper end opening of the lower material box (9) is connected to the discharge outlet.

7. The graphite-doped high-performance electrode paste raw material mixing device according to claim 2, characterized in that: The material discharge box (9) is slidably connected to an adjustment block (10) capable of adjusting the opening size of the material discharge box (9), the material discharge box (9) is threadedly connected to an adjustment rod (11), and the adjustment rod (11) and the adjustment block (10) are rotatably connected.

8. The graphite-doped high-performance electrode paste raw material mixing device according to claim 1, characterized in that: The material discharge box (3) is provided with a vertical slot (13), a sliding rod (15) is slidably connected in the vertical slot (13), the sliding rod (15) is hingedly connected to a connecting rod (14), and the other end of the connecting rod (14) is hingedly connected to the material discharge box (9).

9. The graphite-doped high-performance electrode paste raw material mixing device according to claim 8, characterized in that: The unloading box (3) is rotatably connected to a cylindrical cam (6), and the cylindrical cam (6) is provided with horizontal grooves (17) at both ends and an inclined groove (16) in the middle. The inclined groove (16) and the horizontal groove (17) are connected end to end in sequence to form a through slide groove, and the slide rod (15) is slidably arranged in the slide groove.

10. The graphite-doped high-performance electrode paste raw material mixing device according to claim 9, characterized in that: A stirring rod (2) is rotatably connected inside the mixing box (1); a fixed sleeve of the stirring rod (2) is provided with a toothless gear (19); a fixed sleeve of the cylindrical cam (6) is provided with a large gear (18); the large gear (18) and the toothless gear (19) are meshed; and a motor (5) for driving the stirring rod (2) to rotate is connected to the mixing box (1).

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