An apparatus for purifying graphite powder under a specific atmosphere

Abstract

This utility model relates to the field of graphite powder purification technology. To address the problems of existing graphite powder purification devices, which employ a structure with multiple layers of graphite perforated plates inside the cylinder, resulting in inconvenient disassembly and assembly, and difficulties in cleaning after graphite powder filling and purification, this utility model provides a device for purifying graphite powder under an atmosphere. This device includes multiple venting cylinders, perforated plates, a tank, and multiple mounting components. The perforated plate is positioned at the top of the tank's inlet. Multiple venting cylinders sequentially pass through the perforated plate and exit the bottom of the tank. The mounting components cover the inlet end of each venting cylinder. This utility model effectively prevents graphite powder from penetrating deep into the venting cylinder, thus avoiding impact on subsequent purification efficiency and reducing cleaning difficulty. Furthermore, the venting cylinders penetrate the entire graphite powder layer, enabling thorough purification of the graphite powder.

Description

Technical Field

[0001] This utility model relates to the field of graphite powder purification technology, and more specifically, to an apparatus for purifying graphite powder under a specific atmosphere. Background Technology

[0002] Graphite possesses excellent properties such as electrical conductivity, heat resistance, toughness, corrosion resistance, high plasticity, and good lubrication, and can be widely used in industries such as metallurgy, machinery, electronics, chemicals, medicine, military, defense, aerospace, and semiconductors. Graphite powder purification methods include flotation, hydrofluoric acid method, alkali-acid method, chlorination roasting method, and high-temperature method.

[0003] Currently, the high-temperature halogen element purification technology, which combines chlorination roasting and high-temperature purification, is used to purify graphite. This technology has the advantages of high purification efficiency and low cost. Specifically, halogen element process gases and inert gases are introduced into a sealed vacuum chamber, followed by high-temperature roasting and decomposition volatilization. Oxidized and metallic impurities react, vaporize, and volatilize, and are then removed by the vacuum system. This significantly reduces the impurity content in the graphite raw material, purifying the graphite powder to 6N (i.e., a purity of 99.9999%). The most critical steps in this process are ensuring sufficient contact and reaction between the process gases and the graphite powder, and ensuring that the reaction products are successfully removed by the vacuum system.

[0004] In existing technologies, a multi-layered structure is typically set up in a sealed container, and a dragging gas is introduced for heating and purification. For example, the graphite powder purification device disclosed in patent CN217921496U uses a graphite cylinder as a container, with air intake and exhaust at the top and bottom respectively. The interior of the graphite cylinder is equipped with multiple layers of porous graphite plates to hold the graphite powder, thus facilitating the gas to pass through the inner cavity of the graphite cylinder sequentially to purify the graphite powder. However, although the multi-layered structure is used to achieve batch purification of graphite powder, the multi-layered porous graphite plate structure inside the cylinder has poor stability, is inconvenient to disassemble and assemble, and is difficult to remove after filling and purification, and may even spill during the process.

[0005] Based on the above description, there is an urgent need for a purification device that can efficiently purify graphite powder and is easy to load and remove. Utility Model Content

[0006] The purpose of this utility model is to provide a device for purifying graphite powder under an atmosphere, which aims to solve the technical problems of existing graphite powder purification devices, which adopt a structure with multiple layers of graphite perforated plates inside the cylinder, making disassembly and assembly inconvenient, and making it difficult to clean after filling and purifying graphite powder.

[0007] The embodiments of this utility model are achieved through the following technical solutions: An apparatus for purifying graphite powder under an atmosphere includes multiple venting cylinders, an orifice plate, a tank, and multiple mounting components; the orifice plate is placed at the top of the feed inlet of the tank; the multiple venting cylinders pass through the orifice plate in sequence and exit the bottom of the tank; the mounting components are placed over the feed inlet of the venting cylinders.

[0008] Preferably, the mounting assembly includes a cylinder and a cover; the cylinder passes through the perforated plate; the venting cylinder passes through the cylinder; the cover is located at an open end of the cylinder; and the feed end of the venting cylinder passes into the cylinder and extends towards the cover.

[0009] Preferably, the mounting assembly further includes a positioning ring block; the positioning ring block is externally disposed at one end of the cylinder near the bottom wall of the tank.

[0010] Preferably, the outer wall of the positioning ring block is a material guiding slope wall.

[0011] Preferably, the bottom of the positioning ring block is provided with multiple positioning protrusions; the inner wall of the bottom of the tank is provided with multiple positioning protrusions for the positioning protrusions to be embedded in.

[0012] Preferably, the system also includes a buffer box and multiple air inlet pipes passing through the top of the buffer box; the buffer box is mounted on the top of the feed inlet of the tank; the air inlet ends of the multiple air vents pass through the buffer box and extend to the air inlet pipes.

[0013] Preferably, the buffer box is provided with a buffer layer.

[0014] Preferably, multiple venting cylinders are spaced apart inside the tank; a graphite powder layer is filled between the tank and the multiple venting cylinders; and a void layer is provided between the top of the graphite powder layer and the bottom of the buffer box.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: In this invention, when loading graphite powder, the top of the air inlet of the ventilator is sealed by an installation component, while the perforations of the graphite powder material perforation plate allow the powder to pass into the tank. After loading, the perforation plate and the installation component are simultaneously removed from the tank for further ventilation and purification. This effectively prevents graphite powder from penetrating the ventilator and affecting subsequent purification efficiency, and also reduces cleaning difficulty. Furthermore, unlike existing technologies, the ventilator of this invention penetrates the entire graphite powder layer, thus enabling thorough purification of the graphite powder. Attached Figure Description

[0016] Figure 1 This is a main sectional view of the loading stage of this utility model; Figure 2 This is a top sectional view of the loading stage of this utility model; Figure 3 This is a main cross-sectional view of the purification stage of this utility model; Figure 4 This is a three-dimensional structural diagram of the mounting components in this utility model.

[0017] Icons: 1-ventilation cylinder, 2-orifice plate, 3-tank body, 4-installation components, 41-cylinder body, 42-cap, 43-positioning ring block, 44-positioning protrusion, 5-buffer box, 6-air inlet pipe, 7-buffer layer, 8-graphite powder layer, 9-void layer. Detailed Implementation

[0018] The specific implementation method is described below with reference to the accompanying drawings.

[0019] Example 1 Please see Figures 1 to 4 The present invention provides the following technical solution: an apparatus for purifying graphite powder under an atmosphere.

[0020] Specifically, such as Figures 1 to 3 As shown, an apparatus for purifying graphite powder under an atmosphere includes multiple air-permeable cylinders 1, an orifice plate 2, a tank body 3, and multiple mounting components 4; the orifice plate 2 is placed at the top of the feed inlet of the tank body 3; the multiple air-permeable cylinders 1 pass through the orifice plate 2 in sequence and exit the bottom of the tank body 3; the mounting components 4 are covered at the feed inlet of the air-permeable cylinders 1.

[0021] In this embodiment, the venting cylinder 1 passes through the perforated plate 2 and exits the tank body 3. A flange is provided at the end of the venting cylinder 1 that exits the tank body, connecting it to the bottom outer wall of the tank body 3. During graphite powder loading, the air inlet top of the venting cylinder 1 is sealed by the mounting component 4, while the perforations of the graphite powder perforated plate 2 allow air to pass into the interior of the tank body 3. The mounting component 4 can be welded to the perforated plate 2. After loading, the perforated plate 2 and the mounting component 4 are simultaneously removed from the tank body 3 for further venting and purification. This effectively prevents graphite powder from penetrating deep into the venting cylinder 1 and affecting subsequent purification efficiency, and also reduces cleaning difficulty. Furthermore, unlike existing technologies, in this embodiment, the venting cylinder 1 penetrates the entire graphite powder layer, thus enabling thorough purification of the graphite powder.

[0022] In this embodiment, the venting cylinder 1 is a porous graphite gas guiding cylinder, and the tank 3 is a high-purity graphite tank, or it can be replaced with a high-purity graphite crucible.

[0023] In this embodiment, the installation assembly includes a cylinder 41 and a cover 42; the cylinder 41 passes through the perforated plate 2; the venting cylinder passes through the cylinder 41; the cover 42 is located at an open end of the cylinder 41; the feed end of the venting cylinder 1 passes through the cylinder 41 and extends towards the cover 42.

[0024] Specifically, such as Figure 3 and Figure 4As shown, the installation assembly also includes a positioning ring block 43; the positioning ring block 43 is externally located at one end of the cylinder 41 near the bottom wall of the tank 3.

[0025] In this embodiment, the outer wall of the positioning ring block 43 is a material guiding slope wall.

[0026] In this embodiment, the bottom of the positioning ring block 43 is provided with a plurality of positioning protrusions 44; the bottom inner wall of the tank body 3 is provided with a plurality of positioning protrusions 44 for the positioning protrusions 44 to be embedded.

[0027] Specifically, such as Figure 1 and Figure 3 As shown, it also includes a buffer box 5 and multiple air inlet pipes 6 passing through the top of the buffer box 5; the buffer box 5 is erected at the top of the feed inlet of the tank body 3; the air inlet ends of the multiple air vents pass through the buffer box 5 and extend to the air inlet pipes 6.

[0028] In this embodiment, the buffer box 5 is provided with a buffer layer 7; wherein the buffer layer 7 can be made of high-purity porous graphite blocks, which can buffer and divert the incoming gas so as to continuously pass through the ventilator 1 to purify the graphite powder.

[0029] Specifically, such as Figure 3 As shown, multiple venting cylinders 1 are spaced apart inside the tank body 3; a graphite powder layer 8 is filled between the tank body 3 and the multiple venting cylinders 1; a gap layer 9 is provided between the top of the graphite powder layer 8 and the bottom of the buffer box 5.

[0030] In this embodiment, the void layer 9 serves as an expansion gap to prevent the graphite powder layer 5 from expanding at high temperatures and causing damage to the tank body 3, thereby improving the service life of the tank body 3.

Claims

1. A device for purifying graphite powder under atmosphere, comprising a plurality of gas-permeable cylinders (1), characterized in that: It also includes an orifice plate (2), a tank body (3) and multiple mounting components (4); the orifice plate (2) is placed on the top of the feed inlet of the tank body (3); multiple venting cylinders (1) pass through the orifice plate (2) in sequence and exit the bottom of the tank body (3); the mounting components (4) are placed on the feed inlet of the venting cylinders (1).

2. The apparatus for purifying graphite powder under an atmosphere according to claim 1, characterized by: The mounting assembly includes a cylinder (41) and a cover (42); the cylinder (41) passes through the perforated plate (2); the venting cylinder passes through the cylinder (41); the cover (42) is located at an open end of the cylinder (41); the feed end of the venting cylinder (1) passes through the cylinder (41) and extends toward the cover (42).

3. The apparatus for purifying graphite powder under an atmosphere according to claim 2, characterized by: The installation assembly also includes a positioning ring block (43); the positioning ring block (43) is externally disposed at one end of the cylinder (41) near the bottom wall of the tank (3).

4. The apparatus for purifying graphite powder under an atmosphere according to claim 3, characterized by: The outer wall of the positioning ring block (43) is a guide slope wall.

5. The apparatus for purifying graphite powder under an atmosphere according to claim 3 or 4, characterized by: The bottom of the positioning ring block (43) is provided with a plurality of positioning protrusions (44); the bottom inner wall of the tank body (3) is provided with a plurality of positioning protrusions (44) for the positioning protrusions (44) to be embedded.

6. The apparatus for purifying graphite powder under an atmosphere according to claim 5, characterized in that: It also includes a buffer box (5) and multiple air inlet pipes (6) passing through the top of the buffer box (5); the buffer box (5) is erected at the top of the feed inlet of the tank (3); the air inlet ends of the multiple air vents (1) pass through the buffer box (5) and extend to the air inlet pipes (6).

7. The apparatus for purifying graphite powder under an atmosphere according to claim 6, characterized by: The buffer box (5) is equipped with a buffer layer (7).

8. The apparatus for purifying graphite powder under an atmosphere according to claim 6, characterized by: Multiple air-permeable cylinders (1) are spaced apart inside the tank body (3); a graphite powder layer (8) is filled between the tank body (3) and the multiple air-permeable cylinders (1); a void layer (9) is provided between the top of the graphite powder layer (8) and the bottom of the buffer box (5).

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