Graphite-doped high-performance electrode paste cooling water filtering device

Abstract

The utility model provides a graphite-doped high-performance electrode paste cooling water filtering device which comprises a sedimentation tank and a filtering tank used for filtering cooling water, the filtering tank is communicated with the sedimentation tank through a water supply pipe, and the filtering tank is connected with a lifting plate capable of blocking the water supply pipe in a sliding manner; a collecting tank for collecting sediments is rotationally connected into the sedimentation tank, the collecting tank is connected with a gear, and when the lifting plate ascends and the water supply pipe is still blocked, the collecting tank can be driven to rotate through the gear. The device is convenient to operate, and cooling water generated in electrode paste production can be filtered, so that follow-up cyclic utilization of the cooling water is facilitated, and the effect of saving water resources is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode paste, and particularly relates to a cooling water filtering device for graphite-doped high-performance electrode paste. Background Art

[0002] Graphite electrodes are mainly made of petroleum coke and needle coke as raw materials, and coal tar pitch as a binder. They are made through calcination, batching, kneading, molding, roasting, graphitization, and machining. They are conductors that release electrical energy in the form of electric arcs in arc furnaces to heat and melt furnace charges. According to their quality index levels, they can be divided into ordinary power, high power, and ultra-high power.

[0003] During the processing of graphite electrodes, after batching, asphalt is added to make a paste, and a cooling device is required to cool the graphite electrode paste to facilitate subsequent processing by operators. Most cooling methods use a spray cooling water system. However, the amount of spray water used for cooling is large, and usually, a recycling method is adopted. Since the cooling water will wash the electrode paste particles on the surface of the electrode paste into the lower water collecting tank during flushing.

[0004] In the recycling of cooling water, a filter screen is used to filter the cooling water. However, the following problems exist in the above method. The sediment after the precipitation of the cooling water cannot be cleaned in time, which easily leads to an increase in turbidity when adding the cooling water that needs to be precipitated later, affecting the precipitation efficiency. Summary of the Utility Model

[0005] In order to solve the problems existing in the above-mentioned prior art, a cooling water filtering device for graphite-doped high-performance electrode paste is provided. The device is easy to operate, can filter the cooling water generated during the production of electrode paste, thereby facilitating the subsequent recycling of cooling water and playing a role in saving water resources.

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

[0007] The utility model provides a cooling water filtering device for graphite-doped high-performance electrode paste, which includes a sedimentation tank and a filtering tank for filtering cooling water. The filtering tank is connected to the sedimentation tank through a water delivery pipe. The filtering tank is slidably connected with a lifting plate that can block the water delivery pipe. A collecting tank for collecting sediment is rotatably connected in the sedimentation tank. The collecting tank is connected with a gear. When the lifting plate rises and the water delivery pipe is still blocked, the collecting tank can be driven to rotate through the gear.

[0008] Preferably, a lifting rod moving in the vertical direction is slidably connected to the outer wall of the sedimentation tank. The lifting rod is fixedly connected with a rack, and the rack is meshed with the gear.

[0009] Preferably, the sedimentation tank is rotatably connected with a rotating shaft, the collection tank is fixedly connected with the rotating shaft, and a gear is fixedly sleeved at one end of the rotating shaft after passing through the sedimentation tank.

[0010] Preferably, a spring is sleeved on the lifting rod, one end of the spring is connected to the lifting rod, and the other end of the spring is connected to the outer wall of the sedimentation tank.

[0011] Preferably, the lifting plate is fixedly connected with a lifting plate capable of driving the lifting rod to rise.

[0012] Preferably, when the lifting plate rises to a position where the rack and the gear are disengaged, the lifting plate continues to rise to open the water supply pipe.

[0013] Preferably, the lifting plate rotates the collection tank by 180° or a multiple of 180°.

[0014] Preferably, a filter screen is detachably connected inside the filter tank, a scraper is arranged above the filter screen and is slidably connected with the filter tank, and the water supply pipe is arranged below the filter screen; the filter tank is provided with a chute, a sliding shaft is slidably arranged in the chute, a top rod is hinged to the sliding shaft, the other end of the top rod is hinged to the lifting plate, and the scraper is arranged on one side of the sliding shaft.

[0015] Preferably, the filter tank is rotatably connected with a reciprocating lead screw, a nut is arranged in cooperation with the reciprocating lead screw, the nut is fixedly connected with the scraper, and the filter tank is connected with a motor for driving the reciprocating lead screw to rotate.

[0016] Preferably, a water collecting tank for collecting cooling water is further included, the water collecting tank is connected with a water pump, the water pump is communicated with a water outlet pipe, and the water outlet pipe is arranged above the filter screen.

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

[0018] 1. The present utility model is provided with a water supply pipe, and the lifting plate can block the water supply pipe. When the lifting plate rises, it can drive the collection tank to rotate to realize the dumping of the sediment in the collection tank. When the lifting plate continues to rise, the water supply pipe will be opened to realize the water inlet of the sedimentation tank after the sediment is dumped. By intermittently opening the water supply pipe through the set lifting plate, the water in the sedimentation tank can have enough time to precipitate. The operation is convenient, and the cooling water generated in the production of electrode paste can be precipitated, so as to facilitate the subsequent recycling of the cooling water and play a role in saving water resources.

[0019] 2. The present utility model is provided with a scraper. When the scraper moves, it can clean the filter screen, thereby effectively reducing the occurrence of filter screen blockage. At the same time, when the scraper moves, it can also drive the lifting plate to move, realizing the opening of the water supply pipe and the dumping of the collection tank. The above actions can be achieved by using one driving source, which can effectively reduce the complexity of the device, facilitate the overall control of the system, achieve the purpose of cost saving and convenient operation. At the same time, after the cleaning is completed, the water filtration volume increases, which is also beneficial to the water outlet work of the filter tank. 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 filter tank and the sedimentation tank in;

[0024] Figure 4 is Figure 3 the partial structural side view of the collection tank in.

[0025] Description of the Reference Numerals in the Drawings:

[0026] 1 Water inlet pipe; 2 Collection pool; 3 Water pump; 4 Water outlet pipe; 5 Filter tank; 6 Sedimentation tank; 7 Suction pipe; 8 Motor; 9 Gear set; 10 Scraper; 11 Reciprocating lead screw; 12 Filter screen; 13 Collection box; 14 Slide shaft; 15 Push rod; 16 Lifting plate; 17 Chute; 18 Lifting plate; 19 Lifting rod; 20 Spring; 21 Baffle; 22 Water supply pipe; 23 Impurity pool; 24 Gear; 25 Rotating shaft; 26 Collection tank. Detailed Embodiment

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model. Embodiment 1

[0028] As Figures 1 to 4As shown in the figure, this embodiment proposes a cooling water filtering device for graphite-doped high-performance electrode paste, which includes a sedimentation tank 6 and a filtering tank 5 for filtering cooling water. The filtering tank 5 is connected to the sedimentation tank 6 through a water supply pipe 22. The filtering tank 5 is used for preliminarily filtering the cooling water to filter out larger impurities therein, while the sedimentation tank 6 precipitates the cooling water, thereby facilitating the subsequent recycling of the cooling water.

[0029] A filter screen 12 is detachably connected inside the filtering tank 5. Both ends of the filter screen 12 can be detachably connected by bolts. When the filter screen 12 has been used for a long time, a new filter screen 12 can be replaced. The water supply pipe 22 is arranged below the filter screen 12, so that the filtered cooling water can enter the sedimentation tank 6 through the water supply pipe 22.

[0030] It also includes a water collecting tank 2 for collecting cooling water. The water collecting tank 2 is connected to a water inlet pipe 1. The water inlet pipe 1 can be connected to a forging furnace. A spray cooling water system is arranged inside the forging furnace. When the cooling water flushes, the electrode paste particles on the surface of the electrode paste will be flushed into the lower water receiving tank together. The water receiving tank is connected to the water inlet pipe 1. Therefore, the used cooling water can enter the water collecting tank 2 through the water inlet pipe 1.

[0031] The water collecting tank 2 is connected to a water pump 3. The water pump 3 is connected to a water outlet pipe 4. The water outlet pipe 4 is arranged above the filter screen 12. The water pump 3 can run regularly. At fixed intervals, the water pump 3 runs for a certain period of time, and the cooling water in the water collecting tank 2 can be pumped into the filtering tank 5 through the water outlet pipe 4, and then the cooling water is preliminarily filtered through the filter screen 12.

[0032] A baffle 21 is fixedly connected inside the sedimentation tank 6. The baffle 21 serves to divide the sedimentation tank 6, reducing the splashing of water when the water supply pipe 22 delivers water, thereby facilitating sedimentation. The other end of the sedimentation tank 6 is connected to a water extraction pipe 7. At fixed intervals, the circulating water pump can extract the water in the sedimentation tank 6 through the water extraction pipe 7 to realize the recycling of the precipitated water, playing a role in saving water resources.

[0033] A lifting plate 16 that can block the water supply pipe 22 is slidably connected to the filtering tank 5. The lifting plate 16 is arranged on one side of the water supply pipe 22. When the lifting plate 16 moves in the vertical direction, the water supply pipe 22 can be blocked or the water supply pipe 22 can be connected to the filtering tank 5.

[0034] A collecting tank 26 for collecting sediment is rotatably connected inside the sedimentation tank 6. The collecting tank 26 is connected to a gear 24. When the lifting plate 16 rises and the water supply pipe 22 is still blocked, the collecting tank 26 can be driven to rotate through the gear 24.

[0035] The outer wall of the sedimentation tank 6 is slidably connected with a lifting rod 19 that moves vertically. The lifting rod 19 is fixedly connected with a rack, and the rack meshes with a gear 24. The lifting plate 18 that can drive the lifting rod 19 to rise is fixedly connected to the lifting plate 16. The lifting plate 18 and the lifting rod 19 are arranged in a staggered manner. Therefore, when the lifting plate 16 descends, the lifting rod 19 can be driven to rise through the lifting plate 18.

[0036] Below the collection tank 26 is provided with an impurity tank 23. The length of the rack is appropriate enough so that the lifting plate 16 rotates the collection tank 26 by 180° or a multiple of 180°. Preferably, the rack can make the collection tank 26 rotate exactly 180°, so that the sediment in the collection tank 26 just pours into the impurity tank 23.

[0037] The sedimentation tank 6 is rotatably connected with a rotating shaft 25. The collection tank 26 is fixedly connected with the rotating shaft 25. One end of the rotating shaft 25 passes through the sedimentation tank 6 and is fixedly sleeved with a gear 24. There is enough frictional force between the rotating shaft 25 and the sedimentation tank 6. This frictional force can meet the requirement that when the rotating shaft 25 drives the collection tank 26 to rotate to a certain angle, for example, when the collection tank 26 faces downward, at this time, under the action of the frictional force, the angle of the collection tank 26 can be fixed, so as to facilitate the subsequent reset work of the collection tank 26.

[0038] The upper end of the collection tank 26 includes a notch, and the notch is a symmetrically arranged V shape, so as to better facilitate the collection of sediment. At the same time, the bottom surface of the sedimentation tank 6 is an inclined surface and is inclined towards the direction of the collection tank 26, so as to facilitate the sediment to slide into the collection tank 26 for collection.

[0039] The lifting rod 19 is sleeved with a spring 20. One end of the spring 20 is connected to the lifting rod 19, and the other end of the spring 20 is connected to the outer wall of the sedimentation tank 6. Under the elastic force of the spring 20, at this time, the position of the lifting rod 19 just makes the notch face upward, so as to facilitate the collection of sediment.

[0040] When the lifting plate 16 rises to the point where the rack and the gear 24 are disengaged, the lifting plate 16 continues to rise before the water supply pipe 22 is opened, so as to realize that when the collection tank 26 rotates, the water supply pipe 22 is still in a blocked state. Only when the collection tank 26 rotates to the notch facing downward, will water enter at this time.

[0041] When the lifting plate 16 rises, it can drive the collection tank 26 to rotate to realize the dumping of the sediment in the collection tank 26. When the lifting plate 16 continues to rise, the water supply pipe 22 will be opened to realize the water inlet work of the sedimentation tank 6 after the sediment is dumped.

[0042] The intermittent opening of the water supply pipe 22 is realized through the arranged lifting plate 16, which can allow the water in the sedimentation tank 6 to have sufficient time for sedimentation. The operation is convenient, and the cooling water generated in the production of electrode paste can be sedimented, so as to facilitate the subsequent recycling of the cooling water and play a role in saving water resources. Embodiment 2

[0043] Reference appendix Figures 1 to 4 , other structures are the same as those in Embodiment 1. The difference is that in this embodiment, the situation of the filter screen is considered.

[0044] The filter tank 5 is provided with a sliding groove 17, which is horizontally arranged. A sliding shaft 14 is slidably arranged in the sliding groove 17. The sliding shaft 14 can only slide along the length direction of the sliding groove 17. The sliding shaft 14 is hinged with a top rod 15, and the other end of the top rod 15 is hinged with the lifting plate 16.

[0045] The scraper 10 is arranged on one side of the sliding shaft 14. When the scraper 10 moves to one side of the sliding shaft 14, at this time, when the scraper 10 continues to move, it can push the sliding shaft 14 to move horizontally, and the sliding shaft 14 can drive the lifting plate 16 to rise through the top rod 15.

[0046] Above the filter screen 12, there is a scraper 10 slidably connected to the filter tank 5. The filter tank 5 is rotatably connected with a reciprocating lead screw 11. The reciprocating lead screw 11 is provided with a nut, and the nut is fixedly connected with the scraper 10. The filter tank 5 is connected with a motor 8 for driving the reciprocating lead screw 11 to rotate.

[0047] The reciprocating lead screw 11 is a kind of lead screw that can make the nut achieve reciprocating motion without changing the rotation direction of the main shaft. The reciprocating lead screw 11 is a form of solid cam pair, and its performance is two thread grooves with the same pitch and opposite helix directions. The two ends are connected by a transition curve. Through the rotation of the lead screw, the side of the spiral groove pushes the nut placed in the spiral groove to make an axial reciprocating motion.

[0048] The motor 8 is fixedly connected to the outer wall of the filter tank 5. The motor 8 can drive the reciprocating lead screw 11 to rotate through the gear set 9. The gear set 9 includes a first bevel gear fixedly connected to the output shaft of the motor 8 and a second bevel gear fixedly sleeved on the reciprocating lead screw 11. The first bevel gear and the second bevel gear are meshed with each other.

[0049] Collection boxes 13 are arranged on both sides of the scraper 10. The collection boxes 13 are detachably connected to the inner wall of the filter tank 5, and the collection boxes 13 can collect the impurities scraped by the scraper 10 on the filter screen 12.

[0050] The specific working process is as follows: The cooling water enters the water collecting tank 2 through the water inlet pipe 1. At fixed intervals, the water pump 3 runs once. The water pump 3 pumps the water in the water collecting tank 2 into the filter tank 5 through the water outlet pipe 4, and then the cooling water is filtered under the action of the filter screen 12.

[0051] The motor 8 operates, driving the reciprocating lead screw 11 to rotate. The reciprocating lead screw 11 drives the scraper 10 to move horizontally in a reciprocating manner. The scraper 10 scrapes the impurities in the filter screen 12 into the collection box 13. When the scraper 10 moves to the right, at this time, when the scraper 10 continues to move, it can push the sliding shaft 14 to move horizontally. The sliding shaft 14 can drive the lifting plate 16 to rise through the ejector rod 15.

[0052] The lifting plate 16 drives the lifting rod 19 to rise through the lifting plate 18. The lifting rod 19 drives the collection tank 26 to rotate through the gear 24. After the collection tank 26 rotates 180°, the notch of the collection tank 26 faces downward, and the sediment collected in the collection tank 26 is poured into the impurity pool 23. At this time, the lifting plate 16 still keeps the water supply pipe 22 in a blocked state, so the water in the filtration tank 5 will not enter the sedimentation tank 6.

[0053] After that, as the lifting plate 16 continues to rise, at this time, the rack and the gear 24 are disengaged. When the lifting plate 16 continues to rise, at this time, the lifting plate 16 opens the water supply pipe 22, and the water in the filtration tank 5 enters the sedimentation tank 6 through the water supply pipe 22. After that, when the scraper 10 moves to one side of the sliding shaft 14, at this time, under the action of gravity, the lifting plate 16 resets, blocking the water supply pipe 22. Under the action of the spring 20, the lifting rod 19 resets, driving the notch of the collection tank 26 to face upward, and carrying out the precipitation work of the cooling water.

[0054] Graphite electrodes are mainly made from petroleum coke and needle coke as raw materials, with coal tar pitch as the binder, and are manufactured through calcination, batching, kneading, molding, roasting, graphitization, and machining. During the processing of graphite electrodes, cooling water is required for cooling in many processes.

[0055] For example, during the production of electrode paste, after batching, asphalt is added to make the paste. It is necessary to cool the electrode paste in the forming mold to make it solidify and take shape, which is convenient for operators to carry out subsequent processing of graphite electrodes. At this time, through the set spray cooling water system, when the cooling water flushes, it will wash the electrode paste particles on the surface of the electrode paste into the water receiving tank below together. The water receiving tank is connected to the water inlet pipe 1, so the used cooling water can enter the collection pool 2 through the water inlet pipe 1.

[0056] Although the embodiments of the present invention 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 purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A graphite-doped high-performance electrode paste cooling water filtration device, comprising a sedimentation tank (6) and a filtration tank (5) for filtering cooling water, characterized in that, The filtration tank (5) is connected to the sedimentation tank (6) through a water supply pipe (22). A lifting plate (16) that can block the water supply pipe (22) is slidably connected to the filtration tank (5). A collection tank (26) for collecting sediment is rotatably connected inside the sedimentation tank (6). The collection tank (26) is connected to a gear (24). When the lifting plate (16) rises and the water supply pipe (22) remains blocked, the collection tank (26) can be driven to rotate by the gear (24).

2. The cooling water filtering device for a high-performance electrode paste doped with graphite according to claim 1, wherein A lifting rod (19) moving vertically is slidably connected to the outer wall of the sedimentation tank (6). The lifting rod (19) is fixedly connected to a rack, and the rack meshes with the gear (24).

3. The cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 1, characterized in that, A rotating shaft (25) is rotatably connected to the sedimentation tank (6). The collection tank (26) is fixedly connected to the rotating shaft (25). One end of the rotating shaft (25) passes through the sedimentation tank (6) and is fixedly sleeved with the gear (24).

4. A cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 2, characterized in that, A spring (20) is sleeved on the lifting rod (19). One end of the spring (20) is connected to the lifting rod (19), and the other end of the spring (20) is connected to the outer wall of the sedimentation tank (6).

5. A cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 2, characterized in that, The lifting plate (18) that can drive the lifting rod (19) to rise is fixedly connected to the lifting plate (16).

6. The cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 2, wherein When the lifting plate (16) rises to a position where the rack and the gear (24) disengage, the lifting plate (16) continues to rise to open the water supply pipe (22).

7. A cooling water filtration device for a graphite-doped high-performance electrode paste according to claim 1, characterized in that, The lifting plate (16) rotates the collection tank (26) by 180° or a multiple of 180°.

8. A cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 1, characterized in that, A filter screen (12) is detachably connected inside the filtration tank (5). A scraper (10) slidably connected to the filtration tank (5) is arranged above the filter screen (12). The water supply pipe (22) is arranged below the filter screen (12). The filtration tank (5) is provided with a chute (17). A sliding shaft (14) is slidably arranged in the chute (17). The sliding shaft (14) is hinged to a push rod (15). The other end of the push rod (15) is hinged to the lifting plate (16). The scraper (10) is arranged on one side of the sliding shaft (14).

9. The cooling water filtering device for a graphite-doped high-performance electrode paste according to claim 8, characterized in that A reciprocating lead screw (11) is rotatably connected to the filtration tank (5). A nut is arranged in cooperation with the reciprocating lead screw (11). The nut is fixedly connected to the scraper (10). The filtration tank (5) is connected to a motor (8) for driving the reciprocating lead screw (11) to rotate.

10. A cooling water filtration device for a graphite-doped high-performance electrode paste according to claim 8, characterized in that, It further includes a water collection tank (2) for collecting cooling water. The water collection tank (2) is connected to a water pump (3). The water pump (3) is communicated with a water outlet pipe (4). The water outlet pipe (4) is arranged above the filter screen (12).

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