Graphite substrate secondary purification method and equipment thereof

Abstract

The invention discloses a graphite substrate secondary purification method and equipment thereof.The graphite substrate secondary purification method comprises the following steps that S1, graphite substrates with stone and sand grain impurities are collected and conveyed, the conveyed graphite substrates are vibrated, and it is guaranteed that the conveyed graphite substrates are separated; s2, leveling operation is carried out on the graphite substrate subjected to rapping, the thickness of the conveyed graphite substrate is guaranteed to be consistent, and pretreatment of the graphite substrate is achieved; s3, carrying out A-path high-voltage ion precipitation separation operation on the pretreated graphite substrate; s4, carrying out B-path high-voltage ion separation and precipitation operation on the graphite substrate subjected to A-path high-voltage ion precipitation separation; and S5, the separated and conveyed sand and stones are collected, and the graphite substrates subjected to separation and precipitation are collected. The method has the characteristics of rapid and convenient purification and separation technology, high efficiency and low purification energy consumption.

Description

Technical Field

[0001] The invention belongs to the technical field related to secondary purification of graphite substrates, and in particular relates to a method and equipment for secondary purification of graphite substrates. Background Art

[0002] Graphite is the name of a mineral, usually produced in metamorphic rocks. It is formed by regional metamorphism or magma intrusion of coal or carbonaceous rocks. It is an important raw material in modern industry and manufacturing. Graphite powder often contains other impurities. The purity of graphite substrate after processing cannot reach 100%, and the purity is generally 95%. It contains impurities such as sand. As a result, the final processed graphite substrate cannot meet the requirements. Therefore, the graphite substrate will be purified, so there is purification equipment.

[0003] For example, a graphite powder purification and impurity removal machine with application number 202021886928.1 disclosed on the website of the National Bureau includes a hopper, a sieve tube is installed at the bottom of the hopper, a vibrating ring is installed at the bottom of the sieve tube, a conveying pipe is installed at the bottom of the vibrating ring, a centrifugal seat is installed at the bottom of the conveying pipe, four connecting rods are equidistantly installed on the side of the centrifugal seat, one end of the connecting rod is connected to a support column, a cover plate is provided on one side of the top surface of the hopper, an empty groove is provided on one side of the bottom of the hopper, a pulling handle is provided inside the empty groove, one end of the pulling handle is connected to a closing mouth, a fan is provided on one side of the top of the sieve tube, a partition plate is provided in the lower half of the inner part of the sieve tube, and a centrifugal seat is provided on the inner side of the vibration ring. There is a vibrator, and a screening net is arranged in the middle of the vibration ring, which mainly utilizes wind force to screen materials of different masses. This is the first screening process. Through the cooperation of the partition plate and the screening net, the vibrator is utilized to drive the vibration of the screening net, so that the materials meeting the requirements can enter the centrifuge through the conveying pipe. This is the second screening process. The centrifuge utilizes inertia to screen materials of different masses. This is the third screening process. The screening effect is improved through three different screening methods. However, the structure adopts multi-channel screening, which makes the overall structure relatively complex, and requires the use of fans, centrifuges, and cylinders, resulting in high overall energy consumption and complicated process steps, which ultimately increases the processing cost and has low purification efficiency. Therefore, improvement is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a graphite substrate secondary purification method and equipment, which solves the problems of high cost, low energy consumption, process steps and low purification efficiency of existing graphite powder purification equipment.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides a method for secondary purification of a graphite substrate, comprising the following steps:

[0007] S1. Collect graphite substrates with gravel and sand impurities for transportation, and perform vibration operation on the transported graphite substrates to ensure that the transported graphite substrates are separated;

[0008] S2, leveling the vibrated graphite substrate to ensure that the thickness of the transported graphite substrate is consistent with the pretreatment of the graphite substrate;

[0009] S3, performing A-path high-pressure ion precipitation separation operation on the pretreated graphite substrate, and under the action of ion wind in A-path high-pressure ion precipitation separation, the graphite substrate is separated from the sand and stone instantly;

[0010] S4, performing a B-path high-pressure ion separation and precipitation operation on the graphite substrate after the A-path high-pressure ion precipitation and separation; under the action of the ion wind in the B-path high-pressure ion precipitation and separation, the graphite substrate is separated from the sand and stone instantly;

[0011] S5. Collect the separated and transported sand and gravel, and collect the separated and precipitated graphite substrate.

[0012] Preferably, in order to ensure the final purification efficiency, when the vibrated graphite substrate is leveled in step S2, it is necessary to ensure that the thickness of the graphite substrate finally transported is 0.03 mm to 0.2 mm.

[0013] Preferably, in order to improve the purification efficiency, the A-path ion precipitation separation step in step S3 may be performed once or multiple times.

[0014] Preferably, in order to improve the purification efficiency, the B-path ion precipitation separation step in step S4 may be performed once or multiple times.

[0015] The present invention also discloses a graphite substrate secondary purification device applied to a graphite substrate secondary purification method, comprising a conveying mechanism, on which the following components are sequentially arranged:

[0016] a conveying hopper for storing graphite substrates;

[0017] A vibration plate for vibrating and separating the graphite substrate conveyed by the conveying mechanism; the vibration plate is located below the output port of the conveying material;

[0018] A flattening mechanism for flattening the graphite substrate conveyed by the conveying mechanism, the flattening mechanism is close to the output port of the vibration plate, and can flatten the graphite substrate separated by vibration of the vibration plate;

[0019] A-path high-pressure ion wind separation device, the A-path high-pressure ion wind separation device is used to perform high-pressure ion wind separation on the flattened graphite substrate, thereby separating the graphite substrate from sand and stone;

[0020] A B-path high-pressure ion wind separation device, which is used to re-separate the graphite substrate separated by the A-path high-pressure ion wind separation device with high-pressure ion wind, thereby separating the graphite substrate from sand and stone;

[0021] A defective material bucket for collecting sand and gravel;

[0022] Among them, an A-level material barrel for collecting the graphite substrates separated by path A is arranged on the side of the conveying mechanism relative to the high-pressure ion wind separation device located on path A, and a B-level material barrel for collecting the graphite substrates separated by path B is arranged on the side of the conveying mechanism relative to the high-pressure ion wind separation device located on path B. A control cabinet electrically connected to the conveying mechanism, the high-pressure ion wind separation device of path A and the high-pressure ion wind separation device of path B and used for controlling the operation of the entire equipment is arranged on the side of the conveying mechanism.

[0023] Preferably, in order to facilitate conveying, the conveying mechanism includes a conveying bracket and a power mechanism. A conveyor belt is connected to the conveying bracket for transmission, a transmission auxiliary wheel is arranged on the rotating shaft on one side of the conveyor belt, a main drive wheel is connected to the output shaft of the power mechanism, and a synchronous transmission belt is arranged between the main drive wheel and the transmission auxiliary wheel.

[0024] Preferably, in order to further improve the purification effect and the separation efficiency, the A-path high-voltage ion wind separation device includes an A-path high-voltage generator, an axial moving device 1, and an A-path ion wind component. The A-path high-voltage generator is electrically connected to the control cabinet, the axial moving device 1 is fixed on the conveying bracket, and the axial moving device 1 is connected to the A-path ion wind component and is used to drive the A-path ion wind component to move axially to approach or move away from the A-level barrel, and the output end of the A-path high-voltage generator is electrically connected to the A-path ion wind component.

[0025] Preferably, in order to further improve the purification effect and the separation efficiency at the same time, the B-path high-voltage ion wind separation device includes a B-path high-voltage generator, an axial moving device 2, and a B-path ion wind component. The power supply control end of the B-path high-voltage generator is electrically connected to the control cabinet, and the output end of the B-path high-voltage generator is electrically connected to the B-path ion wind component. The axial moving device 2 is fixed on the conveying bracket, and the axial moving device 2 is connected to the B-path ion wind component and is used to drive the B-path ion wind component to move axially to approach or move away from the B-level barrel.

[0026] Preferably, in order to improve the collection efficiency of the final product, an inclined guide unloading plate 1 is provided above the A-class barrel, and the lower end of the guide unloading plate 1 is inserted into the A-class barrel, and an inclined guide unloading plate 2 is provided above the B-class barrel, and the lower end of the guide unloading plate 2 is inserted into the B-class barrel.

[0027] The present invention has the following beneficial effects: the present invention performs a secondary purification process on the purchased graphite substrate, firstly separates the agglomerated graphite substrate by vibration, then flattens the graphite substrate, and finally separates the flattened graphite substrate by ion wind, thereby finally realizing rapid and convenient purification and separation of the graphite substrate, and the whole equipment has high efficiency, relatively simple structure and low purification energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of a process for secondary purification of a graphite substrate in Example 1;

[0029] Figure 2 This is a schematic diagram of the front structure of a graphite substrate secondary purification device in Example 1;

[0030] Figure 3 This is a schematic diagram of the top view of the structure of a graphite substrate secondary purification device in Example 1 when no control cabinet is set.

[0031] Reference numerals:

[0032] Conveying mechanism 1, conveying bracket 101, power mechanism 102, conveyor belt 103, transmission auxiliary wheel 104, main drive wheel 105, synchronous transmission belt 106, conveying hopper 2, vibration plate 3, leveling mechanism 4, A-line high-pressure ion wind separation device 5, A-line high-pressure generator 501, axial moving device 1 502, A-line ion wind component 503, B-line high-pressure generator 601, axial moving device 2 602, B-line ion wind component 603, B-line high-pressure ion wind separation device 6, defective material barrel 7, A-level material barrel 8, B-level material barrel 9, control cabinet 10, guide unloading plate 1 11, guide unloading plate 2 12. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1 As shown, a method for secondary purification of a graphite substrate disclosed in this embodiment comprises the following steps:

[0036] S1. Collect graphite substrates with gravel and sand impurities for transportation, and perform vibration operation on the transported graphite substrates to ensure that the transported graphite substrates are separated;

[0037] S2, leveling the vibrated graphite substrate to ensure that the thickness of the transported graphite substrate is consistent with the pretreatment of the graphite substrate;

[0038] S3, performing A-path high-pressure ion precipitation separation operation on the pretreated graphite substrate, and under the action of ion wind in A-path high-pressure ion precipitation separation, the graphite substrate is separated from the sand and stone instantly;

[0039] S4, performing a B-path high-pressure ion separation and precipitation operation on the graphite substrate after the A-path high-pressure ion precipitation and separation; under the action of the ion wind in the B-path high-pressure ion precipitation and separation, the graphite substrate is instantly separated from the sand and stone;

[0040] S5. Collect the separated and transported sand and gravel, and collect the separated and precipitated graphite substrate.

[0041] Preferably, in order to ensure the final purification efficiency, when the vibrated graphite substrate is leveled in step S2, it is necessary to ensure that the thickness of the graphite substrate finally transported is 0.03 mm to 0.2 mm.

[0042] Preferably, in order to improve the purification efficiency, the A-path ion precipitation separation step in step S3 may be performed once or multiple times.

[0043] Preferably, in order to improve the purification efficiency, the B-path ion precipitation separation step in step S4 may be performed once or multiple times.

[0044] like Figure 2 , Figure 3 As shown, this embodiment also discloses a graphite substrate secondary purification device applied to a graphite substrate secondary purification method, comprising a conveying mechanism 1, on which the following components are sequentially arranged:

[0045] A conveying hopper 2 for storing graphite substrates;

[0046] A vibration plate 3 for vibrating and separating the graphite substrate conveyed by the conveying mechanism 1; the vibration plate 3 is located below the output port of the conveying material; the vibration plate 3 described in this embodiment is a vibration mechanism that can be directly purchased;

[0047] A leveling mechanism 4 for leveling the graphite substrate delivered by the conveying mechanism 1, the leveling mechanism 4 is close to the output port of the vibration plate 3, and can flatten the graphite substrate separated by the vibration plate 3; the leveling mechanism 4 described in this embodiment is used to scrape the graphite substrate, so it includes a scraping plate and a scraping drive mechanism, and as shown Figure 2 As shown, the scraping drive mechanism is located behind the conveying mechanism 1, and the scraping plate is located directly above the conveying mechanism 1. The scraping plate is used to scrape the graphite substrate conveyed by the conveying mechanism 1 back and forth to achieve a scraping treatment thereof; and the leveling mechanism 4 is an existing technology that can be directly purchased, so it is not described in detail;

[0048] A-path high-pressure ion wind separation device 5, the A-path high-pressure ion wind separation device 5 is used to perform high-pressure ion wind separation on the flattened graphite substrate, so as to separate the graphite substrate from sand and stone;

[0049] A B-path high-pressure ion wind separation device 6, which is used to perform high-pressure ion wind separation on the graphite substrate separated by the A-path high-pressure ion wind separation device 5, thereby separating the graphite substrate from the sand and stone;

[0050] A defective material bucket 7 for collecting sand and gravel;

[0051] Among them, an A-level material barrel 8 for collecting the graphite substrates separated by path A is arranged on the side of the conveying mechanism 1 relative to the high-pressure ion wind separation device 5 located on path A, and a B-level material barrel 9 for collecting the graphite substrates separated by path B is arranged on the side of the conveying mechanism 1 relative to the high-pressure ion wind separation device 6 located on path B. A control cabinet 10 electrically connected to the conveying mechanism 1, the high-pressure ion wind separation device 5 of path A and the high-pressure ion wind separation device 6 of path B and used for controlling the operation of the entire equipment is arranged on the side of the conveying mechanism 1.

[0052] Preferably, in order to facilitate conveying, the conveying mechanism 1 includes a conveying bracket 101 and a power mechanism 102. A conveying belt 103 is transmission-connected to the conveying bracket 101. A transmission auxiliary wheel 104 is provided on the rotating shaft on one side of the conveying belt 103. A main transmission wheel 105 is connected to the output shaft of the power mechanism 102. A synchronous transmission belt 106 is provided between the main transmission wheel 105 and the transmission auxiliary wheel 104.

[0053] Preferably, in order to further improve the purification effect and the separation efficiency, the A-path high-voltage ion wind separation device 5 includes an A-path high-voltage generator 501, an axial moving device 502, and an A-path ion wind component 503. The A-path high-voltage generator 501 is electrically connected to the control cabinet 10, the axial moving device 502 is fixed on the conveying bracket 101, and the axial moving device 502 is connected to the A-path ion wind component 503 and is used to drive the A-path ion wind component 503 to move axially to approach or move away from the A-level barrel 8. The output end of the A-path high-voltage generator 501 is electrically connected to the A-path ion wind component 503, and the B-path high-voltage The ion wind separation device 6 includes a B-path high voltage generator 601, an axial moving device 2 602, and a B-path ion wind component 603. The power supply control end of the B-path high voltage generator 601 is electrically connected to the control cabinet 10, and the output end of the B-path high voltage generator 601 is electrically connected to the B-path ion wind component 603. The axial moving device 2 602 is fixed on the conveying bracket 101, and the axial moving device 2 602 is connected to the B-path ion wind component 603 and is used to drive the B-path ion wind component 603 to move axially to approach or move away from the B-path material barrel 9. In this embodiment, in order to improve the filtering effect, the A-path high voltage generator 501 can be connected to multiple A-paths. ion wind assembly 503, the B-way high voltage generator 601 can be connected to multiple B-way ion wind assemblies 603, and at the same time, in order to realize the individual setting of the displacement of each B-way ion wind assembly 603 or A-way ion wind assembly 503, an axial moving device 1 502 is provided on each A-way ion wind assembly 503, and an axial moving device 2 602 is provided on each B-way ion wind assembly 603. It should be noted that the structure of the axial moving device 2 602 is consistent with that of the axial moving device 1 502, and a cylinder can be used in combination with an axial bracket or a linear guide rail can be directly used. When a cylinder is used in combination with an axial bracket, the cylinder is fixed on the conveying bracket 101, and the axial bracket and the piston of the cylinder are connected. The rod is connected, and the corresponding B-path ion wind component 603 or A-path ion wind component 503 is installed on the axial bracket. If a linear guide is used, the linear guide is directly fixed on the conveying bracket 101, and the corresponding B-path ion wind component 603 or A-path ion wind component 503 is installed on the sliding seat of the linear guide. It can be achieved; and it should be noted that the structures of the A-path ion wind component 503 and the B-path ion wind component 603 are the same, only the high-voltage positive and negative poles are different, the A-path ion wind component 503 is positive ion, and the B-path ion wind component 603 is negative ion; and the A-path ion wind component 503 and the B-path ion wind component 603 both include an ion wind release plate connected to the high-voltage generator, and the ion wind release plate is used to release ion wind.

[0054] Preferably, in order to improve the collection efficiency of the final product, an inclined guide unloading plate 11 is provided above the A-class barrel 8, and the lower end of the guide unloading plate 11 is inserted into the A-class barrel 8. An inclined guide unloading plate 2 12 is provided above the B-class barrel 9, and the lower end of the guide unloading plate 2 12 is inserted into the graphite substrate with stone and sand impurities in the B-class barrel 9. In this embodiment, the guide unloading plates 11 and 12 described are both inclined structures, so that the graphite substrates transported by the corresponding B-path ion wind component 603 or the A-path ion wind component 503 can be quickly transported to the A-class barrel 8 or the B-class barrel 9, thereby further improving the transportation efficiency.

[0055] The working principle of the present invention is as follows: first, the graphite substrate with stone and sand impurities enters the conveyor belt 103 through the conveying hopper 2, and then passes through the vibrating plate 3 in turn to perform vibration separation treatment on the graphite substrate, and then the graphite substrate is leveled by the leveling mechanism 4 to achieve pretreatment of the graphite substrate; then it passes through the ion wind separation mechanism - that is, the A-path high-pressure ion wind separation device 5 and / or the B-path high-pressure ion wind separation device 6. Because the ion wind mechanism is applied with high voltage and the ions are released through the ion wind, the released ion wind acts on the graphite substrate. Due to the material characteristics, the graphite substrate is instantly separated from the sand and stone under the action of the ion wind. The separated graphite substrate falls into a barrel of corresponding purity under the joint action of the guide unloading plate and the axial moving device, and the valve is needed because the purity of the first stage is the highest, and the more stages there are, the lower the purity extracted backwards, and finally the sand and part of the graphite substrates are uniformly collected in the defective barrel 7. Therefore, the present invention performs a secondary purification process on the purchased graphite substrate, first vibrates and separates the agglomerated graphite substrates, then flattens the graphite substrates, and performs ion wind separation on the flattened graphite substrates, finally realizing fast and convenient purification and separation of the graphite substrates, and the whole equipment has high efficiency, relatively simple structure and low purification energy consumption.

[0056] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A method for secondary purification of graphite substrate, characterized in that: The following steps are involved: S1. Collect graphite substrates with gravel and sand impurities for transportation, and perform vibration operation on the transported graphite substrates to ensure that the transported graphite substrates are separated; S2, leveling the vibrated graphite substrate to ensure that the thickness of the transported graphite substrate is consistent with the pretreatment of the graphite substrate; S3, performing A-path high-pressure ion precipitation separation operation on the pretreated graphite substrate, and under the action of ion wind in A-path high-pressure ion precipitation separation, the graphite substrate is separated from the sand and stone instantly; S4, performing a B-path high-pressure ion separation and precipitation operation on the graphite substrate after the A-path high-pressure ion precipitation and separation; under the action of the ion wind in the B-path high-pressure ion precipitation and separation, the graphite substrate is separated from the sand and stone instantly; S5. Collect the separated and transported sand and gravel, and collect the separated and precipitated graphite substrate.

2. A method for secondary purification of graphite substrate according to claim 1, characterized in that: When the vibrated graphite substrate is leveled in step S2, it is necessary to ensure that the thickness of the graphite substrate finally transported is 0.03 mm to 0.2 mm.

3. A method for secondary purification of graphite substrate according to claim 1, characterized in that: The A-path ion precipitation and separation step described in step S3 may be performed once or multiple times.

4. A method for secondary purification of graphite substrate according to claim 1, characterized in that: The B-path ion precipitation and separation step described in step S4 may be performed once or multiple times.

5. A graphite substrate secondary purification device applied to a graphite substrate secondary purification method, characterized in that: The invention comprises a conveying mechanism (1), on which the following components are arranged in sequence: a conveying hopper (2) for storing graphite substrates; A vibration plate (3) for vibrating and separating the graphite substrates conveyed by the conveying mechanism (1); the vibration plate (3) is located below the output port of the conveyed material; A flattening mechanism (4) for flattening the graphite substrate conveyed by the conveying mechanism (1), wherein the flattening mechanism (4) is close to the output port of the vibration plate (3) and is capable of flattening the graphite substrate separated by vibration of the vibration plate (3); A-path high-pressure ion wind separation device (5), the A-path high-pressure ion wind separation device (5) is used to perform high-pressure ion wind separation on the flattened graphite substrate, thereby separating the graphite substrate from sand and stone; A B-path high-pressure ion wind separation device (6), wherein the B-path high-pressure ion wind separation device (6) is used to perform high-pressure ion wind re-separation on the graphite substrate separated by the A-path high-pressure ion wind separation device (5), thereby separating the graphite substrate from sand and stone; A defective material bucket (7) for collecting sand and gravel; Wherein, an A-class material barrel (8) for collecting graphite substrates separated in the A-path is arranged on the side of the conveying mechanism (1) relative to the A-path high-pressure ion wind separation device (5), a B-class material barrel (9) for collecting graphite substrates separated in the B-path is arranged on the side of the conveying mechanism (1) relative to the B-path high-pressure ion wind separation device (6), and a control cabinet (10) electrically connected to the conveying mechanism (1), the A-path high-pressure ion wind separation device (5), and the B-path high-pressure ion wind separation device (6) and used to control the operation of the entire device is arranged on the side of the conveying mechanism (1).

6. A graphite substrate secondary purification device according to claim 5, characterized in that: The conveying mechanism (1) comprises a conveying support (101) and a power mechanism (102); a conveying belt (103) is connected to the conveying support (101) in a transmission manner; a transmission auxiliary wheel (104) is arranged on a rotating shaft on one side of the conveying belt (103); a main transmission wheel (105) is connected to the output shaft of the power mechanism (102); and a synchronous transmission belt (106) is arranged between the main transmission wheel (105) and the transmission auxiliary wheel (104).

7. A graphite substrate secondary purification device according to claim 6, characterized in that: The A-path high-voltage ion wind separation device (5) comprises an A-path high-voltage generator (501), an axial moving device (502), and an A-path ion wind component (503). The A-path high-voltage generator (501) is electrically connected to the control cabinet (10). The axial moving device (502) is fixed on the conveying bracket (101), and the axial moving device (502) is connected to the A-path ion wind component (503) and is used to drive the A-path ion wind component (503) to move axially to approach or move away from the A-level barrel (8). The output end of the A-path high-voltage generator (501) is electrically connected to the A-path ion wind component (503).

8. A graphite substrate secondary purification device according to claim 7, characterized in that: The B-path high-voltage ion wind separation device (6) comprises a B-path high-voltage generator (601), an axial moving device 2 (602), and a B-path ion wind component (603). The power supply control end of the B-path high-voltage generator (601) is electrically connected to the control cabinet (10), and the output end of the B-path high-voltage generator (601) is electrically connected to the B-path ion wind component (603). The axial moving device 2 (602) is fixed on the conveying bracket (101), and the axial moving device 2 (602) is connected to the B-path ion wind component (603) and is used to drive the B-path ion wind component (603) to move axially to approach or move away from the B-path material barrel (9).

9. A graphite substrate secondary purification device according to claim 8, characterized in that: A first guide unloading plate (11) is arranged at an angle above the A-class barrel (8), and the lower end of the first guide unloading plate (11) is inserted into the A-class barrel (8). A second guide unloading plate (12) is arranged at an angle above the B-class barrel (9), and the lower end of the second guide unloading plate (12) is inserted into the B-class barrel (9).

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