Method for preparing special graphite material from isostatic pressing graphite waste

Abstract

This invention relates to the field of graphite waste treatment technology, and more particularly to a method for preparing special graphite materials from isostatic pressing graphite waste, comprising the following steps: waste collection: firstly, the waste generated from isostatic pressing graphite production is collected and processed centrally; waste treatment: the collected waste is centrally fed into a purification module, where impurities are screened and removed; waste crushing: after the isostatic pressing graphite waste has been screened, it is pushed into a crushing device for crushing; material proportioning, pressing, primary calcination, and graphitization treatment; this invention, by processing the waste from isostatic pressing graphite production through the screening and purification processes described above, followed by crushing, can then be proportioned, fed into a mixing pot, and then pressed, calcined, and graphitized to produce special graphite materials, thus avoiding environmental pollution from waste and achieving full utilization of resources.

Description

Technical Field

[0001] This invention relates to the field of graphite waste treatment technology, specifically a method for preparing special graphite materials from isostatically pressed graphite waste. Background Technology

[0002] Isostatic graphite is made by pressing high-purity graphite. During the preparation of isostatic graphite, a large amount of waste is often generated after the finished product is processed. If the waste from isostatic graphite preparation is directly discarded, it will not only pollute the environment but also waste resources. Therefore, the waste from isostatic graphite preparation can be directly used to prepare special graphite materials, which can avoid environmental pollution and resource waste. Therefore, a method for preparing special graphite materials from isostatic graphite waste is proposed to address the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preparing special graphite materials from isostatically pressed graphite waste, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] As an optional embodiment of the method for preparing special graphite materials from isostatically pressed graphite waste according to the present invention, the method includes the following steps:

[0006] Step 1: Waste Collection: First, the waste generated during the production of isostatic graphite is collected and processed in a centralized manner;

[0007] Step 2: Waste treatment: The collected waste is put into the impurity removal module, where impurities are screened and removed.

[0008] Step 3: Waste crushing: After the isostatic graphite waste has completed the screening process, it is pushed into the crushing device by pushing the component to crush it.

[0009] Step 4: Material proportioning: The amount of pulverized waste added is 85% of the total weight, and the amount of binder added is 15% of the total weight;

[0010] Step 5: Mixing: Pour the waste material into the mixing pot according to the particle size composition ratio and stir dry for 40 minutes. The dry material temperature should not be lower than 140℃. After adding medium-temperature modified asphalt, it is wet mixing. The temperature of the added medium-temperature modified asphalt should be 170-180℃. The wet mixing time is 25 minutes, and the paste temperature is 170-175℃.

[0011] Step Six: Pressing: Take the paste from Step Five out of the mixing pot and press it using a vibration molding machine to obtain the pressed special graphite molded product.

[0012] Step 7: First firing: Place the special graphite molded product from Step 6 into a firing furnace for a first firing. After the first firing is completed, remove the special graphite molded product from the firing furnace.

[0013] Step 8: Graphitization treatment: Place the special graphite molded product from Step 7 into a baking furnace for secondary baking. After the secondary baking is completed, remove the special graphite molded product from the baking furnace.

[0014] During the preparation of isostatic graphite, a large amount of waste is often generated after the finished product is processed. If the waste from isostatic graphite preparation is directly discarded, it will not only pollute the environment but also waste resources. Therefore, directly using the waste from isostatic graphite preparation to prepare special graphite materials can avoid both environmental pollution and resource waste. This invention, after the waste from isostatic graphite preparation has undergone the screening and impurity removal process mentioned above, is then crushed by a crushing device. At this point, the materials can be proportioned and put into a kneading pot, and then pressed, calcined, and graphitized to produce special graphite materials. This not only avoids environmental pollution from waste but also achieves full utilization of resources.

[0015] As an optional embodiment of the method for preparing special graphite materials from isostatically pressed graphite waste according to the present invention, the impurity removal module includes a base, an impurity removal box, and a dust collection device. The impurity removal box is fixedly connected to the top of the base, and a dust collection device for impurity screening is installed on the side of the impurity removal box. A vibration device is also installed inside the impurity removal box, and a screening screen is provided on the top of the vibration device. A uniformly distributed sliding rod is fixedly connected inside the screening screen, and both the front and rear ends of the sliding rod are slidably connected to the impurity removal box.

[0016] A pushing assembly is installed on one side above the screening screen, and a blocking device is provided on the other side above the screening screen. The outer side of the blocking device is fixedly connected to the inner wall of the impurity removal box.

[0017] The base has a guide tube connected to its side, and the other end of the guide tube is connected to a crushing device. The bottom of the crushing device is fixedly connected to the base.

[0018] When processing waste materials from isostatic graphite preparation, the waste materials contain a large amount of dust and other fine impurities. These materials are placed inside a waste removal box, and a vibrating device is activated to cause the screen above to vibrate and screen. Fine impurities and dust either fall to the bottom or are stirred up. A dust collection device can then be used to absorb the stirred-up dust, preventing it from polluting the working environment. Multiple sliding rods inside the screen ensure stable up-and-down sliding. After waste removal, a blocking device and a pushing assembly are activated to push the screened waste into a guide tube, where it is then crushed in a crushing device. This allows for immediate use in the subsequent production of special graphite materials, avoiding resource waste and ensuring full resource utilization.

[0019] As an optional embodiment of the method for preparing special graphite materials from isostatically pressed graphite waste according to the present invention, the dust collection device includes a dust collection box, a vacuum cleaner, and a filter screen. The vacuum cleaner is installed inside the dust collection box in a vertically distributed manner. The input end of the vacuum cleaner is connected to an air intake hood, and the air intake hood covers the outer side of which a filter screen is fixedly connected. The outer side of the filter screen is fixedly connected to the dust collection box. The output end of the vacuum cleaner is connected to a material cylinder, and the outer side of the material cylinder is detachably connected to the dust collection box.

[0020] When screening waste materials, the dust and fine impurities raised by the vacuum cleaner are sucked into the material cylinder for storage. The filter screen can prevent larger waste materials from entering the vacuum cleaner. The two sets of vacuum cleaners can ensure that the dust and impurities falling from the upper and lower layers can fully enter the material cylinder for convenient centralized processing.

[0021] As an optional embodiment of the method for preparing special graphite materials from isostatically pressed graphite waste according to the present invention, the crushing device includes a crushing box, a motor, and a crushing roller. The bottom of the crushing box is fixedly connected to the base. Two sets of motors are fixedly connected to the rear side of the crushing box, and the main shaft of the motor is fixedly connected to the crushing roller. A blocking frame is provided above the crushing roller, and the outer side of the blocking frame is fixedly connected to the crushing box. A collection frame is slidably connected inside the crushing box.

[0022] After the waste is screened to remove impurities, it enters the crushing box. The motor is started to drive the crushing rollers to rotate. The relative rotation of the crushing rollers can fully crush the waste for subsequent use. The set of blocking frame can ensure that the waste moves towards the center of the crushing rollers, which serves as a guide and ensures that the waste is fully crushed.

[0023] As an optional embodiment of the method for preparing special graphite materials from isostatic graphite waste according to the present invention, the pushing assembly includes a first hydraulic device and a pusher plate, the bottom of the first hydraulic device is fixedly connected to the screening screen, and the free end of the first hydraulic device is fixedly connected to the pusher plate.

[0024] After the waste material is screened, the push plate can be moved by starting the first hydraulic device, which will move the waste material to one side and facilitate the waste material discharge.

[0025] As an optional embodiment of the method for preparing special graphite materials from isostatic graphite waste according to the present invention, the blocking device includes a mounting frame, a second hydraulic device, and a fixing ring. The outer side of the mounting frame is fixedly connected to the inner wall of the impurity removal box. The second hydraulic device is fixedly connected to the inside of the mounting frame. A blocking plate is slidably connected to the free end of the second hydraulic device. A spring is fixedly connected to the top of the blocking plate. A fixing ring is fixedly connected to the top of the spring. The inner side of the fixing ring is fixedly connected to the free end of the second hydraulic device.

[0026] During waste screening, the springs ensure that the compression plate is in constant contact with the screening screen, preventing waste from falling through the guide tube. At the same time, when the waste is being discharged, the second hydraulic device can be activated to move the fixed ring, which in turn causes the spring to pull the compression plate upward, facilitating the normal discharge of waste.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention involves processing waste materials prepared from isostatic graphite through screening and impurity removal processes as described above, followed by crushing using a crushing device. The materials are then proportioned and fed into a mixing pot, and subsequently pressed, calcined, and graphitized to produce special graphite materials. This process not only avoids environmental pollution from waste materials but also achieves full utilization of resources.

[0029] By placing the collected waste from isostatic graphite preparation into a waste removal box, the screen can be vibrated up and down by starting the vibration device. The solid waste from isostatic graphite preparation is located above the screen. When the screen is vibrated, the fine impurities and dust in the waste can be adsorbed and removed by the dust collection device, while the larger particles of isostatic graphite preparation waste are located above the screen. At this time, the waste can be screened, the purity of the waste can be improved, and it is helpful for the subsequent preparation of special graphite materials.

[0030] During waste screening, the fine dust raised above the screening screen can be absorbed by starting a vacuum cleaner, which avoids dust pollution to the environment and ensures the purity of the waste above the screening screen, which is helpful for the subsequent preparation of special graphite materials.

[0031] After the waste material above the screening screen is screened, the first hydraulic device is activated to move the push plate, which pushes the waste material above the screening screen. The second hydraulic device is activated to move the spring, which in turn moves the blocking plate upward, which helps to push the waste material into the crushing device. The crushing roller can then crush the waste material, and then the special graphite material is prepared.

[0032] The spring is designed to push the blocking plate downwards at all times and make close contact with the screening screen. This ensures that when the vibrating equipment drives the screening screen to vibrate up and down, the blocking plate remains in stable contact with the screening screen, preventing waste from falling directly into the guide tube. When discharging waste, the spring can drive the blocking plate upwards, thus allowing the waste to be discharged. Attached Figure Description

[0033] Figure 1 A schematic diagram of a purification module for preparing special graphite materials from isostatically pressed graphite waste;

[0034] Figure 2 A cross-sectional view of a module for removing impurities from isostatically pressed graphite waste to prepare special graphite materials;

[0035] Figure 3 A schematic diagram of a dust collection device for preparing special graphite materials from isostatically pressed graphite waste;

[0036] Figure 4 A schematic diagram of the structure of a pusher assembly for preparing special graphite materials from isostatically pressed graphite waste;

[0037] Figure 5 A schematic diagram of a blocking device for preparing special graphite materials from isostatically pressed graphite waste.

[0038] In the diagram: 1. Base; 2. Waste removal box; 3. Dust collection device; 301. Dust collection box; 302. Vacuum cleaner; 303. Filter screen; 304. Material cylinder; 4. Guide tube; 5. Crushing device; 501. Crushing box; 502. Motor; 503. Crushing roller; 504. Blocking frame; 505. Collection frame; 6. Vibrating device; 7. Screening screen; 8. Pushing assembly; 801. First hydraulic device; 802. Push plate; 9. Blocking device; 901. Mounting frame; 902. Second hydraulic device; 903. Fixing ring; 904. Blocking plate; 905. Spring; 10. Sliding rod. Detailed Implementation

[0039] Example 1:

[0040] This invention provides a technical solution:

[0041] A method for preparing special graphite materials from isostatically pressed graphite waste includes the following steps:

[0042] Step 1: Waste Collection: First, the waste generated during the production of isostatic graphite is collected and processed in a centralized manner;

[0043] Step 2: Waste treatment: The collected waste is put into the impurity removal module, where impurities are screened and removed.

[0044] Step 3: Waste crushing: After the isostatic graphite waste has completed the screening process, it is pushed into the crushing device by pushing the component to crush it.

[0045] Step 4: Material proportioning: The amount of pulverized waste added is 85% of the total weight, and the amount of binder added is 15% of the total weight;

[0046] Step 5: Mixing: Pour the waste material into the mixing pot according to the particle size composition ratio and stir dry for 40 minutes. The dry material temperature should not be lower than 140℃. After adding medium-temperature modified asphalt, it is wet mixing. The temperature of the added medium-temperature modified asphalt should be 170-180℃. The wet mixing time is 25 minutes, and the paste temperature is 170-175℃.

[0047] Step Six: Pressing: Take the paste from Step Five out of the mixing pot and press it using a vibration molding machine to obtain the pressed special graphite molded product.

[0048] Step 7: First firing: Place the special graphite molded product from Step 6 into a firing furnace for a first firing. After the first firing is completed, remove the special graphite molded product from the firing furnace.

[0049] Step 8: Graphitization treatment: Place the special graphite molded product from Step 7 into a baking furnace for secondary baking. After the secondary baking is completed, remove the special graphite molded product from the baking furnace.

[0050] During the preparation of isostatic graphite, a large amount of waste is often generated after the finished product is processed. If the waste from isostatic graphite preparation is directly discarded, it will not only pollute the environment but also waste resources. Therefore, directly using the waste from isostatic graphite preparation to prepare special graphite materials can avoid both environmental pollution and resource waste. This invention, after the waste from isostatic graphite preparation has undergone the screening and impurity removal process mentioned above, is then crushed by a crushing device. At this point, the materials can be proportioned and put into a kneading pot, and then pressed, calcined, and graphitized to produce special graphite materials. This not only avoids environmental pollution from waste but also achieves full utilization of resources.

[0051] Example 2

[0052] This embodiment is an improvement made to Implementation 1. Please refer to [link / reference]. Figure 1 and Figure 2Specifically, the aforementioned impurity removal module includes a base 1, an impurity removal box 2, and a dust collection device 3. The top of the base 1 is fixedly connected to the impurity removal box 2, and the side of the impurity removal box 2 is equipped with a dust collection device 3 for impurity screening. The interior of the impurity removal box 2 is also equipped with a vibration device 6, and the top of the vibration device 6 is provided with a screening screen 7. The interior of the screening screen 7 is fixedly connected with evenly distributed sliding rods 10, and both the front and rear ends of the sliding rods 10 are slidably connected to the impurity removal box 2.

[0053] A pusher assembly 8 is installed on one side above the screen 7, and a blocking device 9 is provided on the other side above the screen 7. The outer side of the blocking device 9 is fixedly connected to the inner wall of the impurity removal box 2.

[0054] The base 1 has a guide tube 4 connected to its side, and the other end of the guide tube 4 is connected to a crushing device 5. The bottom of the crushing device 5 is fixedly connected to the base 1.

[0055] When processing waste materials from isostatic graphite preparation, the waste materials contain a large amount of dust and other fine impurities. These materials are placed inside the impurity removal box 2, and the vibrating device 6 drives the screen 7 above to vibrate and screen. The fine impurities and dust either fall to the bottom or are stirred up. The dust can be absorbed by the dust collection device 3 to prevent it from polluting the working environment. At the same time, the multiple sets of sliding rods 10 inside the screen 7 ensure that the screen 7 slides stably up and down. After the impurity removal is completed, the blocking device 9 and the pushing component 8 are activated to push the screened waste into the guide tube 4, where it is crushed inside the crushing device 5. This allows it to be used at any time when making special graphite materials, avoiding resource waste and making full use of resources.

[0056] Example 3

[0057] This embodiment is an improvement upon the two implementation examples. Please refer to [link / reference]. Figure 2 and Figure 3 Specifically, the aforementioned vacuuming device 3 includes a vacuum chamber 301, a vacuum cleaner 302, and a filter 303. The vacuum cleaner 302 is installed inside the vacuum chamber 301 and is arranged vertically. The input end of the vacuum cleaner 302 is connected to an air intake hood, and the filter 303 is fixedly connected to the outside of the air intake hood. The outside of the filter 303 is fixedly connected to the vacuum chamber 301. The output end of the vacuum cleaner 302 is connected to a feed cylinder 304, and the outside of the feed cylinder 304 is detachably connected to the vacuum chamber 301.

[0058] When screening waste materials, the dust and fine impurities raised by the vacuum cleaner 302 are sucked into the material cylinder 304 for storage. The filter screen 303 can prevent larger waste materials from entering the vacuum cleaner 302. The two sets of vacuum cleaners 302 can ensure that the dust and impurities falling from the upper and lower layers can fully enter the material cylinder 304, which facilitates the centralized processing of impurities.

[0059] Example 4

[0060] This embodiment is an improvement upon the three implementation examples. Please refer to [link / reference]. Figure 2 Specifically, the aforementioned pulverizing device 5 includes a pulverizing box 501, a motor 502, and a pulverizing roller 503. The bottom of the pulverizing box 501 is fixedly connected to the base 1. Two sets of motors 502 are fixedly connected to the rear side of the pulverizing box 501, and the main shaft of the motor 502 is fixedly connected to the pulverizing roller 503. A blocking frame 504 is provided above the pulverizing roller 503, and the outer side of the blocking frame 504 is fixedly connected to the pulverizing box 501. A collection frame 505 is slidably connected inside the pulverizing box 501.

[0061] After the waste is screened to remove impurities, it enters the crushing box 501. By starting the motor 502, the crushing roller 503 can be driven to rotate. The relative rotation of the crushing roller 503 can fully crush the waste for subsequent use. The blocking frame 504 can ensure that the waste moves towards the center of the crushing roller 503, which serves as a guide and ensures that the waste is fully crushed.

[0062] Example 5

[0063] This embodiment is an improvement upon the four implementation examples. Please refer to [link / reference]. Figure 2 and Figure 4 Specifically, the aforementioned pushing component 8 includes a first hydraulic device 801 and a pusher plate 802. The bottom of the first hydraulic device 801 is fixedly connected to the screening screen 7, and the free end of the first hydraulic device 801 is fixedly connected to the pusher plate 802.

[0064] After the waste material is screened, the push plate 802 can be moved by starting the first hydraulic device 801, which in turn moves the waste material to one side, which helps to unload the waste material.

[0065] Example 6

[0066] This embodiment is an improvement upon the previous five implementations. Please refer to [link / reference]. Figure 2 and Figure 5Specifically, the aforementioned blocking device 9 includes a mounting frame 901, a second hydraulic device 902, and a fixing ring 903. The outer side of the mounting frame 901 is fixedly connected to the inner wall of the waste removal box 2. The second hydraulic device 902 is fixedly connected inside the mounting frame 901. A blocking plate 904 is slidably connected to the free end of the second hydraulic device 902. A spring 905 is fixedly connected to the top of the blocking plate 904. A fixing ring 903 is fixedly connected to the top of the spring 905. The inner side of the fixing ring 903 is fixedly connected to the free end of the second hydraulic device 902.

[0067] During waste screening, the spring 905 ensures that the compression plate 904 is in constant contact with the screening screen 7, preventing waste from falling through the guide tube 4. At the same time, when the waste is being discharged, the second hydraulic device 902 can be activated to move the fixed ring 903, which in turn causes the spring 905 to pull the compression plate 904 upward, facilitating the normal discharge of waste.

[0068] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A method for preparing special graphite materials from isostatically pressed graphite waste, characterized in that: Includes the following steps: Step 1: Waste Collection: First, the waste generated during the production of isostatic graphite is collected and processed in a centralized manner; Step 2: Waste treatment: The collected waste is put into the impurity removal module, where impurities are screened and removed. Step 3: Waste crushing: After the isostatic graphite waste has completed the screening process, it is pushed into the crushing device by pushing the component to crush it. Step 4: Material proportioning: The amount of pulverized waste added is 85% of the total weight, and the amount of binder added is 15% of the total weight; Step 5: Mixing: Pour the waste material into the mixing pot according to the particle size composition ratio and stir dry for 40 minutes. The dry material temperature should not be lower than 140℃. After adding medium-temperature modified asphalt, it is wet mixing. The temperature of the added medium-temperature modified asphalt should be 170-180℃. The wet mixing time is 25 minutes, and the paste temperature is 170-175℃. Step Six: Pressing: Take the paste from Step Five out of the mixing pot and press it using a vibration molding machine to obtain the pressed special graphite molded product. Step 7: First firing: Place the special graphite molded product from Step 6 into a firing furnace for a first firing. After the first firing is completed, remove the special graphite molded product from the firing furnace. Step 8: Graphitization treatment: Place the special graphite molded product from Step 7 into a baking furnace for secondary baking. After the secondary baking is completed, remove the special graphite molded product from the baking furnace. The impurity removal module includes a base (1), an impurity removal box (2), and a dust collection device (3). The top of the base (1) is fixedly connected to the impurity removal box (2). The side of the impurity removal box (2) is equipped with a dust collection device (3) for impurity screening. The inside of the impurity removal box (2) is also equipped with a vibration device (6), and the top of the vibration device (6) is provided with a screening screen (7). The inside of the screening screen (7) is fixedly connected with evenly distributed sliding rods (10). The front and rear ends of the sliding rods (10) are slidably connected to the impurity removal box (2). A pusher assembly (8) is installed on one side above the screen (7), and a blocking device (9) is provided on the other side above the screen (7). The outer side of the blocking device (9) is fixedly connected to the inner wall of the impurity removal box (2). The side of the base (1) is connected to a guide tube (4), and the other end of the guide tube (4) is connected to a crushing device (5). The bottom of the crushing device (5) is fixedly connected to the base (1).

2. The method for preparing special graphite materials from isostatically pressed graphite waste according to claim 1, characterized in that: The vacuuming device (3) includes a vacuum box (301), a vacuum cleaner (302), and a filter (303). The vacuum box (301) is equipped with a vacuum cleaner (302) arranged vertically. The input end of the vacuum cleaner (302) is connected to an air intake hood, and the air intake hood covers the outside of which the filter (303) is fixedly connected. The outside of the filter (303) is fixedly connected to the vacuum box (301). The output end of the vacuum cleaner (302) is connected to a material cylinder (304), and the outside of the material cylinder (304) is detachably connected to the vacuum box (301).

3. The method for preparing special graphite materials from isostatically pressed graphite waste according to claim 1, characterized in that: The crushing device (5) includes a crushing box (501), a motor (502) and a crushing roller (503). The bottom of the crushing box (501) is fixedly connected to the base (1). Two sets of motors (502) are fixedly connected to the rear side of the crushing box (501), and the main shaft of the motor (502) is fixedly connected to the crushing roller (503). A blocking frame (504) is provided above the crushing roller (503), and the outer side of the blocking frame (504) is fixedly connected to the crushing box (501). A collection frame (505) is slidably connected inside the crushing box (501).

4. The method for preparing special graphite materials from isostatically pressed graphite waste according to claim 1, characterized in that: The feeding assembly (8) includes a first hydraulic device (801) and a pusher plate (802). The bottom of the first hydraulic device (801) is fixedly connected to the screen (7), and the free end of the first hydraulic device (801) is fixedly connected to the pusher plate (802).

5. The method for preparing special graphite materials from isostatically pressed graphite waste according to claim 1, characterized in that: The blocking device (9) includes a mounting frame (901), a second hydraulic device (902), and a fixing ring (903). The outer side of the mounting frame (901) is fixedly connected to the inner wall of the cleaning box (2). The second hydraulic device (902) is fixedly connected inside the mounting frame (901). A blocking plate (904) is slidably connected to the free end of the second hydraulic device (902). A spring (905) is fixedly connected to the top of the blocking plate (904). A fixing ring (903) is fixedly connected to the top of the spring (905). The inner side of the fixing ring (903) is fixedly connected to the free end of the second hydraulic device (902).

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