Porous carbon powder vibrating screening device

Abstract

This utility model discloses a vibrating sieving device for porous carbon powder, comprising: a vibrating sieving unit, which includes a support base and a sieve box, the support base and the sieve box being fixedly connected by multiple damping springs; multiple discharge hoods fixedly connected to the outer wall of the sieve box; multiple filter screens with progressively decreasing pore sizes fixedly connected to the inner cavity of the sieve box; a vibrating motor fixedly installed at the bottom of the sieve box; and a flexible sealing unit, which includes a dustproof cloth for sealing the top of the sieve box. The flexible sealing unit includes an annular clamping part and a conveying part, the annular clamping part being used to fix the dustproof cloth to the sieve box. This utility model effectively prevents carbon powder from escaping from the top of the sieve box by fixing the dustproof cloth to the top of the sieve box through the annular clamping part, thereby avoiding carbon powder spillage and pollution of the working environment, and preventing workers from inhaling carbon powder. The multiple layers of filter screens with different pore sizes inside the sieve box can perform multi-stage vibrating sieving of the carbon powder.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, and in particular to a porous carbon powder vibrating screening device. Background Technology

[0002] Porous carbon powder is a carbon material with a highly developed pore structure and specific surface area. Its pore size can range from ultrafine nanoscale micropores to micron-scale fine pores suitable for microbial activity. It is usually prepared by bio-based resin materials through an activation pore-forming process. This material has a good pore size distribution, which can achieve a high loading rate of nano-silicon. Moreover, its porous carbon framework can effectively alleviate the volume expansion of silicon in silicon-carbon anode materials, thereby improving the safety and life of the battery.

[0003] During the screening of porous carbon powder by a disc vibrating screen, some fine carbon powder particles are radially diffused on the screen surface under the action of excitation force. Due to the continuous vibration generated during the operation of the vibrating screen, it is difficult for the top to be stably connected with the conveying pipeline. Therefore, in actual production, the top of the vibrating screen is often designed with an open structure to ensure continuous feeding. However, when the operator feeds a large amount of material, it will not only aggravate the splashing and diffusion of powder, but also cause dust to spread in the working area, which not only pollutes the working environment, but also increases the health risk of workers inhaling dust. Therefore, a vibrating screening device for porous carbon powder is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned porous carbon powder vibrating sieving device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a porous carbon powder vibrating screen device, which is suitable for solving the problem that the top of the disc vibrating screen often adopts an open structure design to ensure continuous feeding, but when the operator feeds a large amount of material, it will not only aggravate the splashing and diffusion of powder, but also cause dust to spread in the working area, which not only pollutes the working environment, but also increases the health risk of workers inhaling dust.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a porous carbon powder vibrating sieving device, comprising:

[0008] A vibrating screening unit includes a support base and a screen box. The support base and the screen box are fixedly connected by multiple damping springs. Multiple discharge covers are fixedly connected to the outer wall of the screen box. Multiple filter screens with successively decreasing apertures are fixedly connected to the inner cavity of the screen box. A vibrating motor is fixedly installed at the bottom of the screen box.

[0009] A flexible sealing unit includes a dustproof cloth for sealing the top of a sieve box. The flexible sealing unit includes an annular clamping part and a conveying part. The annular clamping part is used to fix the dustproof cloth on the sieve box, and the conveying part is sealed to the dustproof cloth and used to convey carbon powder.

[0010] A support unit is provided on a support base, the support unit being used to support the material conveying section.

[0011] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, the annular clamping part includes a fixing ring fixedly connected to the top of the sieve box, and a clamping ring is fixed to the top of the fixing ring by bolts. The dustproof cloth is clamped between the fixing ring and the clamping ring.

[0012] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, the top of the fixing ring has multiple grooves, and the bottom of the clamping ring is fixedly connected with multiple clamping blocks that are adapted to the grooves. The clamping blocks slide through the dustproof cloth and slide into the grooves.

[0013] In a preferred embodiment of the porous carbon powder vibrating screening device of this utility model, the conveying part includes a conveying pipe, the dustproof cloth is slidably sleeved on the bottom of the conveying pipe, and the dustproof cloth is fixed to the pipe wall of the conveying pipe by a clamp.

[0014] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, two L-shaped guide rods are fixedly connected to the side wall of the sieve box, and two guide blocks corresponding to the L-shaped guide rods are fixedly connected to the side wall of the clamping ring. The vertical ends of the two L-shaped guide rods slide through the corresponding guide blocks respectively.

[0015] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, the vertical ends of the two L-shaped guide rods are tapered, and the through hole of the guide block is a tapered hole that fits the L-shaped guide rod.

[0016] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, the support unit includes two support plates fixedly connected to the side wall of the support base, and the top of the two support plates is jointly fixed with a horizontal plate by bolts. The conveying pipe passes through the horizontal plate and is fixedly connected to the horizontal plate.

[0017] In a preferred embodiment of the porous carbon powder vibrating sieving device of this utility model, each of the support plates is fixedly connected to both sides of a side support plate, and the bottom of each side support plate is fixed to the side wall of the support base.

[0018] The beneficial effects of this utility model are as follows: The annular clamping part fixes the dustproof cloth to the top of the screen box, forming a sealed space, which effectively prevents the carbon powder from escaping from the top of the screen box. This can avoid the carbon powder overflowing and polluting the working environment, and at the same time reduce the risk of workers inhaling carbon powder. The screen box is equipped with multiple layers of filter screens with different pore sizes. The screen box is driven by a vibration motor to generate high-frequency vibration, so that the carbon powder is vibrated and screened in multiple stages on the screen surface. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of the porous carbon powder vibrating sieve device proposed in this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the sieve box proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the disassembled and cut structure of the dustproof cloth proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the distribution of the clamping blocks proposed in this utility model.

[0024] 100. Vibrating screening unit; 101. Support base; 102. Screen box; 103. Vibration damping spring; 104. Discharge cover; 105. Filter screen; 106. Vibrating motor;

[0025] 200. Flexible sealing unit; 201. Dustproof cloth;

[0026] 202, Annular clamping part; 202a, Fixing ring; 202b, Clamping ring; 202c, Clamping block;

[0027] 203. Conveying section; 203a. Conveying pipe; 203b. Clamp;

[0028] 204. L-shaped guide rod; 205. Guide block;

[0029] 300, Support unit; 301, Support plate; 302, Horizontal plate; 303, Side support plate. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0033] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a porous carbon powder vibrating sieving device. The dustproof cloth is fixed to the top of the sieve box to form a sealed space, which effectively prevents the carbon powder from escaping from the top of the sieve box. It includes: a vibrating sieving unit 100, a flexible sealing unit 200 and a support unit 300.

[0036] The vibrating screening unit 100 includes a support base 101 and a screen box 102. The support base 101 and the screen box 102 are fixedly connected by multiple damping springs 103. Multiple discharge covers 104 are fixedly connected to the outer wall of the screen box 102. Multiple filter screens 105 with successively decreasing apertures are fixedly connected to the inner cavity of the screen box 102. A vibrating motor 106 is fixedly installed at the bottom of the screen box 102.

[0037] The flexible sealing unit 200 includes a dustproof cloth 201 for sealing the top of the screen box 102. The flexible sealing unit 200 includes an annular clamping part 202 and a conveying part 203. The annular clamping part 202 is used to fix the dustproof cloth 201 on the screen box 102. The conveying part 203 is sealed to the dustproof cloth 201 and is used to convey carbon powder.

[0038] A support unit 300 is provided on the support base 101, and the support unit 300 is used to support the material conveying part 203.

[0039] The support base 101 is connected to the screen box 102 by a damping spring 103, which can buffer the vibration generated when the vibration motor 106 is working. The filter screens 105 with different pore sizes in the screen box 102 are driven by the vibration motor 106 to perform multi-stage screening of the input carbon powder. The carbon powder with qualified particle size is discharged through the filter screen 105 and then discharged through the corresponding discharge cover 104. The annular clamping part 202 of the flexible sealing unit 200 tightly fixes the dustproof cloth 201 to the top of the screen box 102, and forms a closed conveying channel with the conveying part 203. The support unit 300 is used to stably support the conveying part 203 to ensure that it remains stable in the vibration environment.

[0040] The dustproof cloth 201 expands in a conical shape, making its diameter larger than the opening of the screen box 102. The dustproof cloth 201 covers the opening of the screen box 102. The deformation and stretching space reserved in the body of the dustproof cloth 201 can adapt to the slight displacement when the screen box 102 vibrates. The conveying part 203 can be flexibly connected to the external feeding pipe through a short-sized corrugated rubber tube. The elasticity of the rubber tube is used to offset the vibration transmission, ensuring that the feeding pipe is stable and does not shake. This can meet the continuous feeding requirements and effectively prevent carbon powder from escaping from the top of the screen box 102, achieving a dual improvement in dust pollution control and screening efficiency.

[0041] Example 2

[0042] Reference Figures 1-4 This is the second embodiment of the present invention. Unlike the previous embodiment, the annular clamping part 202 includes a fixing ring 202a fixedly connected to the top of the screen box 102. The top of the fixing ring 202a is fixed with a clamping ring 202b by bolts. The dustproof cloth 201 is clamped between the fixing ring 202a and the clamping ring 202b.

[0043] The annular clamping part secures the dustproof cloth 201 by bolting the fixing ring 202a and the clamping ring 202b. The clamping ring 202b is pressed over the fixing ring 202a by bolts, clamping the dustproof cloth 201 between the two to prevent carbon powder from drifting out from the top gap of the sieve box 102.

[0044] The top of the fixing ring 202a has multiple grooves, and the bottom of the clamping ring 202b is fixedly connected with multiple clamping blocks 202c that are adapted to the grooves. The clamping blocks 202c slide through the dustproof cloth 201 and slide into the grooves.

[0045] The groove at the top of the fixing ring 202a and the clamping block 202c at the bottom of the clamping ring 202b form a positioning and mating structure. During installation, the dustproof cloth 201 is aligned with the fixing ring 202a, and then the clamping block 202c at the bottom of the clamping ring 202b is passed through the dustproof cloth 201 and inserted into the groove. The dustproof cloth 201 is restricted by the clamping block 202c, thereby preventing the dustproof cloth 201 from falling off between the fixing ring 202a and the clamping ring 202b.

[0046] In addition, the material conveying section 203 includes a conveying pipe 203a, a dustproof cloth 201 is slidably sleeved on the bottom of the conveying pipe 203a, and the dustproof cloth 201 is fixed to the pipe wall of the conveying pipe 203a by a clamp 203b.

[0047] The clamp 203b consists of two semi-circular plates connected by bolts and nuts. The two semi-circular plates can be separated. Tightening the bolts can generate a circumferential tightening force to tightly fix the dustproof cloth 201 to the bottom of the conveying pipe 203a and form a sealing structure. This ensures that when the carbon powder is conveyed downward through the conveying pipe 203a, it can only fall into the inner cavity of the screen box 102 through the sealed area between the dustproof cloth 201 and the top of the screen box 102.

[0048] Example 3

[0049] Reference Figure 1 and Figure 2 This is the third embodiment of the present invention. Unlike the previous embodiment, the side wall of the sieve box 102 is fixedly connected with two L-shaped guide rods 204, and the side wall of the clamping ring 202b is fixedly connected with two guide blocks 205 corresponding to the L-shaped guide rods 204. The vertical ends of the two L-shaped guide rods 204 slide through the corresponding guide blocks 205 respectively.

[0050] The clamping ring 202b can be removed from the fixing ring 202a. After the clamp 203b is removed from the conveying pipe 203a, the dustproof cloth 201 can be replaced. The L-shaped guide rod 204 on the side wall of the screen box 102 and the guide block 205 of the clamping ring 202b form a sliding guide mechanism. This structure provides precise guidance when installing the clamping ring 202b, ensuring that the clamping block 202c and the groove of the fixing ring 202a are quickly aligned.

[0051] Among them, the vertical ends of the two L-shaped guide rods 204 are tapered, and the through hole of the guide block 205 is a tapered hole that fits the L-shaped guide rods 204.

[0052] When the clamping ring 202b slides down along the conical end of the L-shaped guide rod 204, the fit between the conical surfaces produces a radial centering effect, which can automatically correct the position of the clamping ring 202b and ensure that the conical end of the L-shaped guide rod 204 quickly passes through the fixing ring 202a, thereby further improving the installation efficiency of the clamping ring 202b.

[0053] Example 4

[0054] Reference Figure 1 This is the fourth embodiment of the present utility model. Unlike the previous embodiment, the support unit 300 includes two support plates 301 fixedly connected to the side wall of the support base 101. The top of the two support plates 301 is fixedly connected to a horizontal plate 302 by bolts. The conveying pipe 203a passes through the horizontal plate 302 and is fixedly connected to the horizontal plate 302.

[0055] A non-contact gap is reserved between the support plate 301 and the screen box 102. The support base 101 absorbs most of the vibration energy generated by the vibration motor 106 through the damping spring 103, and only a small amount of residual vibration is transmitted to the support plate 301, thereby reducing the vibration amplitude of the conveying pipe 203a and preventing fatigue damage to the feeding pipe caused by resonance. A rubber damping ring can be set at the connection between the conveying pipe 203a and the horizontal plate 302 to further attenuate the vibration energy. At the same time, the support plate 301 and the support base 101 are rigidly connected by bolts that can be detached. In addition, bolt holes can be opened on the support base 101 to fix the support plate 301 of the corresponding height to the ground by bolts, thereby reducing the vibration generated by the screen box 102 on the support base 101. When replacing the dust cover 201, first remove the clamp 203b from the conveying pipe 203a, and then remove the horizontal plate 302 from the support plate 301 to separate the conveying pipe 203a from the dust cover 201 for replacement.

[0056] Each support plate 301 has a side support plate 303 fixedly connected to both sides, and the bottom of each side support plate 303 is fixed to the side wall of the support base 101.

[0057] The side support plates 303 added on both sides of the support plate 301 form a triangular support structure. By increasing the lateral support points, the anti-tilting stiffness and torsional strength of the support plate 301 during vibration are greatly improved.

[0058] During use, when screening, the conveying pipe 203a is flexibly connected to the external feeding pipe through a short-sized corrugated rubber tube to achieve continuous and stable conveying of carbon powder. After the carbon powder enters the screen box 102 through the conveying pipe 203a, the vibrating motor 106 starts to generate vibration, which drives the filter screens 105 with different apertures in the screen box 102 to perform multi-stage screening of the carbon powder. The carbon powder that meets the particle size requirements passes through the filter screens 105 and is discharged through the corresponding discharge hood 104. During this process, the dustproof cloth 201 covering the top of the screen box 102 can effectively prevent the carbon powder from escaping from the top of the screen box 102. At the same time, the damping spring 103 buffers the vibration generated by the vibrating motor 106, greatly reducing the vibration energy and allowing only a small amount of vibration to be transmitted to the support base 101 and support plate 301, ensuring that the conveying pipe 203a remains stable and avoiding fatigue damage to the feeding pipe due to resonance.

[0059] When it is necessary to replace the dust cover 201, first remove the clamp 203b to loosen its fastening to the dust cover 201 and the conveying pipe 203a. Then, remove the bolts between the horizontal plate 302 and the support plate 301. Next, lift the horizontal plate 302 along with the conveying pipe 203a to separate it from the dust cover 201. Then, remove the connecting bolts between the clamping ring 202b and the fixing ring 202a. Remove the old dust cover 201. When replacing the new dust cover 201, first flatten it and cover it with the new dust cover 201. Covering the fixing ring 202a, and using the guiding and positioning structure of the L-shaped guide rod 204 and the guide block 205, the clamping block 202c accurately passes through the dustproof cloth 201 and is inserted into the groove of the fixing ring 202a, quickly completing the clamping and fixing of the clamping ring 202b. Finally, the horizontal plate 302 is re-fixed to the support plate 301, and the new dustproof cloth 201 is put into the bottom end of the conveying pipe 203a and then tightened by the clamp 203b to complete the replacement process of the dustproof cloth 201.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A vibrating sieving device for porous carbon powder, characterized in that, include: A vibrating screening unit (100) includes a support base (101) and a screen box (102). The support base (101) and the screen box (102) are fixedly connected by multiple damping springs (103). Multiple discharge covers (104) are fixedly connected to the outer wall of the screen box (102). Multiple filter screens (105) with successively decreasing apertures are fixedly connected to the inner cavity of the screen box (102). A vibrating motor (106) is fixedly installed at the bottom of the screen box (102). A flexible sealing unit (200) includes a dustproof cloth (201) for sealing the top of a sieve box (102). The flexible sealing unit (200) includes an annular clamping part (202) and a conveying part (203). The annular clamping part (202) is used to fix the dustproof cloth (201) to the sieve box (102). The conveying part (203) is sealed to the dustproof cloth (201) and is used to convey carbon powder. A support unit (300) is provided on the support base (101) for supporting the material conveying unit (203).

2. The porous carbon powder vibrating sieve device according to claim 1, characterized in that: The annular clamping part (202) includes a fixing ring (202a) fixedly connected to the top of the screen box (102), and a clamping ring (202b) is fixed to the top of the fixing ring (202a) by bolts. The dustproof cloth (201) is clamped between the fixing ring (202a) and the clamping ring (202b).

3. The porous carbon powder vibrating sieve device according to claim 2, characterized in that: The top of the fixing ring (202a) has multiple grooves, and the bottom of the clamping ring (202b) is fixedly connected with multiple clamping blocks (202c) that are adapted to the grooves. The clamping blocks (202c) slide through the dustproof cloth (201) and slide into the grooves.

4. The porous carbon powder vibrating sieve device according to claim 3, characterized in that: The material conveying unit (203) includes a conveying pipe (203a), and the dustproof cloth (201) is slidably sleeved on the bottom of the conveying pipe (203a). The dustproof cloth (201) is fixed to the pipe wall of the conveying pipe (203a) by a clamp (203b).

5. The porous carbon powder vibrating sieve device according to claim 3, characterized in that: The side wall of the sieve box (102) is fixedly connected to two L-shaped guide rods (204), and the side wall of the clamping ring (202b) is fixedly connected to two guide blocks (205) corresponding to the L-shaped guide rods (204). The vertical ends of the two L-shaped guide rods (204) slide through the corresponding guide blocks (205).

6. The porous carbon powder vibrating sieve device according to claim 5, characterized in that: The vertical ends of the two L-shaped guide rods (204) are tapered, and the through hole of the guide block (205) is a tapered hole that fits the L-shaped guide rod (204).

7. The porous carbon powder vibrating sieve device according to claim 4, characterized in that: The support unit (300) includes two support plates (301) fixedly connected to the side wall of the support base (101). The top of the two support plates (301) is fixed with a horizontal plate (302) by bolts. The conveying pipe (203a) passes through the horizontal plate (302) and is fixedly connected to the horizontal plate (302).

8. The porous carbon powder vibrating sieve device according to claim 7, characterized in that: Each of the support plates (301) is fixedly connected to two sides by a side support plate (303), and the bottom of each side support plate (303) is fixed to the side wall of the support base (101).

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