VC (Vitamin C) mixer structure for powder materials

Abstract

The utility model discloses a VC mixing machine structure for powder materials. The VC mixing machine structure comprises a rack, the VC mixing machine main body is arranged on the rack, and a driving part is arranged in the rack and used for driving the VC mixing machine main body to operate; and the pulse dust collector is arranged on the VC mixing machine main body, is externally connected with a vacuum pump and is used for collecting dust materials in a falling-back manner, and is matched with the VC mixing machine main body to realize heat treatment operation of the powder materials in different environments. The powder material heat treatment device can play a role in heat treatment of powder materials in a vacuum environment, so that oxygen is effectively isolated, powder is prevented from being oxidized in the heating process, the effect of mixing the powder in the vacuum oxygen-free environment is achieved, periodic gas back flushing inside the pulse dust collector can be achieved, and the service life of the pulse dust collector is prolonged. And the raised dust can be continuously collected and directly falls back into the VC mixing machine, so that the material loss is obviously reduced, and the production yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon material processing, in particular to a VC mixer structure for powder materials. Background Art

[0002] Carbon materials have the advantages of wide sources, rich resources, and diverse structures. Among them, graphite materials are widely used as negative electrode materials for lithium-ion batteries.

[0003] Sodium-ion batteries are another competitive energy storage technology. Their raw materials, battery cells, and even PACK equipment and processes are compatible with lithium-ion batteries, and their scaled costs have great advantages over lithium-ion batteries.

[0004] However, sodium ions cannot be well embedded in the graphite layer. Graphite, which is widely used as a negative electrode material for lithium-ion batteries, cannot be used in sodium-ion batteries. Hard carbon materials prepared based on raw materials such as biomass, coal, and resin have become the first choice for commercial negative electrodes of sodium-ion batteries.

[0005] By modifying the raw materials, the chemical properties, structural properties, and surface properties of the materials can be adjusted, thereby optimizing the electrochemical properties of the materials. For example, the pre-oxidation process can optimize the raw material structure, thereby optimizing the electrochemical properties of the materials and improving their sodium storage efficiency, sodium storage capacity, and cycle stability.

[0006] However, when organic precursors, especially those in powder form, are pre-oxidized, stabilized, and modified, there are many unpredictable factors during the reaction process, such as uneven heating of the materials, heat accumulation, and gas accumulation. Some materials will release gases during this process, causing powder materials to raise dust and cause material loss. There will also be volume expansion and difficulty in decompression, causing explosion risks. Existing equipment cannot completely solve this problem.

[0007] To this end, based on the existing VC high-efficiency mixing and heating machines in the prior art, this application specifically proposes a VC mixer structure for powder materials to solve the above technical problems. Utility Model Content

[0008] The main purpose of the utility model is to provide a VC mixer structure for powder materials, which can realize heat treatment of powder materials under vacuum environment, heat treatment of powder materials under normal pressure environment, pre-oxidation of powder materials and powder material processing under gas protection state.

[0009] In order to solve the above technical problems, the utility model provides a VC mixer structure for powder materials, comprising:

[0010] frame;

[0011] The VC mixer body is arranged on a frame, and a driving member is provided inside the frame for driving the VC mixer body to operate;

[0012] The pulse dust collector is installed on the VC mixer body. The pulse dust collector is connected to a vacuum pump and has multiple dust collection bags inside for collecting dust materials. It cooperates with the VC mixer body to realize heat treatment operations of powder materials under different environments.

[0013] Furthermore, the VC mixer body includes a tank body, a VC stirring shaft body rotatably arranged in the tank body, and a first discharge butterfly valve located at the bottom of the tank body. The VC stirring shaft body rotates to mix powder materials.

[0014] Furthermore, a gas inlet is provided on the top of the tank body for introducing nitrogen or compressed air.

[0015] Furthermore, the frame is configured as an inverted L-shaped structure, and the driving member includes a stirring main motor arranged on the frame and a belt assembly arranged on the output shaft of the stirring main motor, the other end of the belt assembly is connected to the VC stirring shaft body, and when the stirring main motor is driven, the belt assembly is used to drive the VC stirring shaft body to rotate.

[0016] Furthermore, the pulse dust collector includes a dust collector body, a negative pressure delivery pipe for connecting the dust collector body and the tank body, a second discharge butterfly valve arranged on the discharge port of the dust collector body, and a vacuum connecting pipe for connecting the dust collector body and the vacuum pump.

[0017] Furthermore, the pulse dust collector also includes a pulse gas inlet and a pulse controller arranged on the dust collector body, and the pulse controller is used to control the pulse gas inlet to fill gas into the dust collector body.

[0018] Furthermore, the discharge port of the dust collector body is vertically connected to the tank body, and is used to cooperate with the pulse controller to intermittently start backblowing to achieve dust collection and falling effect.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The utility model sets a pulse dust collector on the top of the VC mixer and connects the vacuum pipe to an external vacuum pump, which can play the role of heat treatment of powder materials in a vacuum environment, thereby effectively isolating oxygen and preventing the powder from oxidizing during the heating process, achieving the effect of powder mixing in a vacuum oxygen-free environment, and improving the purity and quality of material processing.

[0021] 2. The utility model can realize periodic gas backflushing inside the pulse dust collector through the control of the pulse gas inlet and the pulse controller, so that the raised dust can be continuously collected and directly returned to the VC mixer, thereby significantly reducing material loss, improving production output, and effectively reducing dust emissions, maintaining the cleanliness of the workshop environment, and actively protecting the health of workers.

[0022] 3. The three heat treatment methods (vacuum environment, normal pressure environment, pre-oxidation and gas protection state) provided by the utility model, through flexible configuration such as the introduction of nitrogen or compressed air, not only meet the specific needs of different powder material processing, but also achieve full coverage from basic heat treatment to high-precision processing under special conditions, enhancing the versatility and application range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a schematic plan view of the overall structure of the utility model.

[0025] In the picture:

[0026] 1. Frame; 2. Driving parts; 21. Main stirring motor; 22. Belt assembly; 3. VC mixer body; 31. Tank body; 32. VC stirring shaft body; 33. Gas inlet; 34. First discharge butterfly valve; 4. Pulse dust collector; 41. Dust collector body; 42. Negative pressure conveying pipe; 43. Second discharge butterfly valve; 44. Vacuum connecting pipe; 45. Pulse gas inlet; 46. Pulse controller. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] In the embodiment, see Figure 1 .

[0029] like Figure 1As shown, the utility model provides a VC mixer structure for powder materials, including: a frame 1, a VC mixer body 3 and a pulse dust collector 4, wherein:

[0030] The VC mixer body 3 is arranged on the frame 1, and a driving member 2 is provided inside the frame 1 for driving the VC mixer body 3 to operate;

[0031] The pulse dust collector 4 is arranged above the VC mixer body 3. The pulse dust collector 4 is externally connected to a vacuum pump and has multiple dust removal bags inside for collecting dust materials. It cooperates with the VC mixer body 3 to realize heat treatment operations of powder materials under different environments.

[0032] It should be noted that the VC mixer body 3 and the pulse dust collector 4 here are both existing technologies. The VC mixer body 3 can refer to the VC high-efficiency mixing and heating machine in the existing technology. Therefore, the bending positioning mechanism in this application can directly adopt the products in the existing technology, so its specific principle structure will not be repeated here.

[0033] Furthermore, the VC mixer body 3 includes a tank body 31, a VC stirring shaft body 32 rotatably disposed in the tank body 31, and a first discharge butterfly valve 34 located at the bottom of the tank body 31. The VC stirring shaft body 32 rotates to mix powder materials.

[0034] In addition, the frame 1 is configured as an inverted L-shaped structure, and the driving component 2 includes a stirring main motor 21 arranged on the frame 1 and a belt assembly 22 arranged on the output shaft of the stirring main motor 21. The other end of the belt assembly 22 is connected to the VC stirring shaft body 32. When the stirring main motor 21 is driven, the belt assembly 22 is used to drive the VC stirring shaft body 32 to rotate.

[0035] At this time, by configuring a high-performance stirring main motor 21 and a belt assembly 22 connected to the VC stirring shaft body 32 on the frame 1, the stirring speed can be increased, the occurrence of heat accumulation can be effectively prevented, the material can be ensured to be mixed evenly and local overheating can be avoided, thereby improving the efficiency and safety of the heat treatment.

[0036] Therefore, further, the pulse dust collector 4 includes a dust collector body 41, a negative pressure delivery pipe 42 for connecting the dust collector body 41 and the tank body 31, a second discharge butterfly valve 43 arranged on the discharge port of the dust collector body 41 and a vacuum connecting pipe 44 for connecting the dust collector body 41 and the vacuum pump.

[0037] At this time, by setting a pulse dust collector 4 on the top of the VC mixer and connecting the vacuum pipe to an external vacuum pump, the powder material can be heat treated in a vacuum environment, thereby effectively isolating oxygen and preventing the powder from oxidizing during the heating process, achieving the effect of powder mixing in a vacuum oxygen-free environment, and improving the purity and quality of material processing.

[0038] The pulse dust collector 4 further includes a pulse gas inlet 45 and a pulse controller 46 provided on the dust collector body 41 . The pulse controller 46 is used to control the pulse gas inlet 45 to charge gas into the dust collector body 41 .

[0039] In addition, in a specific embodiment, a gas inlet 33 is provided on the top of the tank body 31 for introducing nitrogen or compressed air. At this time, by providing the gas inlet 33 on the top of the tank body 31 and introducing nitrogen or compressed air, the powder material can be heat-treated under normal pressure or pre-oxidation state. By flexibly adjusting the type and flow of gas, different heat treatment requirements can be achieved, thereby achieving the effect of both preventing oxidation and controlling the degree of oxidation. Finally, it can meet diverse process requirements and enhance the scope of application of the equipment.

[0040] In addition, the discharge port of the dust collector body 41 is vertically connected to the tank body 31, and is used to cooperate with the pulse controller 46 to intermittently start backblowing to achieve the effect of dust collection and falling back.

[0041] At this time, by utilizing the precise control of the pulse gas inlet 45 and the controller, and by integrating the pulse controller 46 and the pulse gas inlet 45 in the pulse dust collector 4, it is possible to achieve periodic gas backflushing inside the dust collector body 41, so that the raised dust can be continuously collected and directly returned to the VC mixer body 3, thereby playing a role in efficiently collecting and returning the raised dust, thereby significantly reducing the problems of material loss and leakage, while improving the recycling rate of powder materials, increasing production output, and effectively reducing dust emissions, maintaining the cleanliness of the workshop environment, and actively protecting the health of workers. In addition, by arranging the gas inlet 33 at the top of the tank body 31 and combining the application of pulse dust removal technology, it is possible to significantly reduce environmental pollution while ensuring production efficiency.

[0042] Based on the above-mentioned VC mixer structure for powder materials, a method for dust removal, collection and recycling of powder materials can be further proposed, including the following three processing methods:

[0043] (1) Heat treatment of powder materials under vacuum environment: a pulse dust collector 4 is connected to the top of the VC mixer body 3, and a vacuum connection pipe 44 is connected to the side of the pulse dust collector 4. When the powder materials need to be heated and reacted and oxygen is isolated, an external vacuum pump is used to achieve a vacuum and oxygen-free environment inside the VC mixer body 3 and the pulse dust collector 4;

[0044] The specific operation process includes: closing the discharge butterfly valve before starting, putting the required pre-oxidized powder material into the tank body 31 of the VC mixer body 3, starting the stirring main motor 21, and using the belt assembly 22 to drive the VC stirring shaft body 32 to rotate. Stirring begins while the VC stirring shaft body 32 is rotating, and heating is started. During the reaction of the materials in the tank body 31, the external vacuum pump and the pulse dust collector 4 are turned on and work simultaneously. Some of the dust raised in the tank body 31 during stirring and the gas and material released due to volume expansion caused by the pre-oxidation reaction will enter the bag inside the dust collector body 41 through the negative pressure conveying pipe 42 for collection. The pulse controller 46 on the top of the pulse dust collector 4 works intermittently (the gas source uses nitrogen or argon), and the backflush function is activated to shake off the material on the bag. The external vacuum pump is turned off at a certain interval, and the second discharge butterfly valve 43 is opened to allow the collected dust material to fall back into the tank body 31 of the VC mixer body 3. After the material reaction is completed, the first discharge butterfly valve 34 is opened for collection.

[0045] It should be noted at this time that closing the vacuum pump and opening the second discharge butterfly valve 43 require repetitive operations, and opening the first discharge butterfly valve 34 is a one-time collection step to complete the experiment; the inert gas entering the device from the pulser inlet will temporarily affect the vacuum degree, but the impact is not significant because the external vacuum pump continues to work, and the material will not react in the oxygen-free state inside the control device.

[0046] (2) Heat treatment of powder materials under normal pressure: The discharge port of the pulse dust collector 4 is vertically connected to the top feed port of the VC mixer body 3, and the device can be intermittently opened and back-blowing operation can be performed to achieve dust collection and fall back effect, improve production, protect the workshop environment, and provide protection for the health of workers;

[0047] The specific operation process includes: closing the first discharge butterfly valve 34 at the bottom, then adding powder material, starting the stirring main motor 21, using the belt assembly 22 to drive the VC stirring shaft body 32 to rotate, and starting stirring when the VC stirring shaft body 32 is rotating. During stirring, part of the dust raised in the tank body 31 enters the bag inside the pulse dust collector 4 body for collection, and the pulse controller 46 on the top of the pulse dust collector 4 works intermittently to blow back the material on the bag. At intervals, the second discharge butterfly valve 43 is opened to let the collected dust material fall back into the tank body 31 of the VC mixer body 3. After the material reaction is completed, the first discharge butterfly valve 34 is opened for collection.

[0048] (3) Pre-oxidation of powder materials and treatment of powder materials under gas protection: nitrogen or argon is introduced into the powder materials during oxygen isolation operation. When oxygen supplementation is required during the normal pre-oxidation process, compressed air is introduced in an appropriate amount for reaction.

[0049] The specific operation process includes:

[0050] a. When oxygen isolation is required, the powder material is put into the tank 31 of the VC mixer body 3 and allowed to stand for a period of time. The external vacuum pump is turned on through the vacuum connection pipe 44. When the internal pressure of the cavity reaches the minimum negative pressure value, nitrogen or argon is introduced through the gas inlet 33 for oxygen replacement. This step is repeated 1 to 3 times.

[0051] b. When oxygen supplementation is required during the reaction process, during normal startup and operation of the equipment, an appropriate amount of compressed air is introduced through the gas inlet 33 to perform a pre-oxidation reaction.

[0052] In summary, three heat treatment modes are set up (vacuum environment, normal pressure environment, pre-oxidation and gas protection state). Through flexible configuration such as vacuum environment or nitrogen / compressed air introduction, it not only meets the specific needs of different powder material processing, but also achieves full coverage from basic heat treatment to high-precision processing under special conditions, enhancing the versatility and application range of the equipment.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0054] In addition, it should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0055] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, in the embodiments of the present invention, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A VC mixer structure for powder materials, characterized in that: include: Rack (1); A VC mixer body (3) is arranged on a frame (1), wherein a driving member (2) is provided inside the frame (1) for driving the VC mixer body (3) to operate, and the VC mixer body (3) includes a tank body (31); A pulse dust collector (4) is provided on the VC mixer body (3). The pulse dust collector (4) is externally connected to a vacuum pump and internally contains a plurality of dust collection bags for collecting dust materials. The pulse dust collector cooperates with the VC mixer body (3) to achieve heat treatment operations of powder materials under different environments. The pulse dust collector (4) comprises a dust collector body (41), a negative pressure delivery pipe (42) for connecting the dust collector body (41) and the tank body (31), a second discharge butterfly valve (43) provided on the discharge port of the dust collector body (41), and a vacuum connection pipe (44) for connecting the dust collector body (41) and a vacuum pump; The discharge port of the dust collector body (41) is vertically connected to the tank body (31) and is used to cooperate with the pulse controller (46) to intermittently start backblowing to achieve dust collection and falling effects.

2. The VC mixer structure for powder materials according to claim 1, characterized in that: The VC mixer body (3) comprises a VC stirring shaft body (32) rotatably arranged in a tank body (31) and a first discharge butterfly valve (34) located at the bottom of the tank body (31). The VC stirring shaft body (32) rotates to mix powder materials.

3. The VC mixer structure for powder materials according to claim 2, characterized in that: A gas inlet (33) is provided on the top of the tank body (31) for introducing nitrogen or compressed air.

4. The VC mixer structure for powder materials according to claim 2, characterized in that: The frame (1) is configured as an inverted L-shaped structure, and the driving member (2) comprises a stirring main motor (21) provided on the frame (1) and a belt assembly (22) provided on an output shaft of the stirring main motor (21), wherein the other end of the belt assembly (22) is connected to a VC stirring shaft body (32), and when the stirring main motor (21) is in a driving state, the belt assembly (22) is used to drive the VC stirring shaft body (32) to rotate.

5. The VC mixer structure for powder materials according to claim 1, characterized in that: The pulse dust collector (4) further comprises a pulse gas inlet (45) and a pulse controller (46) provided on the dust collector body (41), wherein the pulse controller (46) is used to control the pulse gas inlet (45) to charge gas into the interior of the dust collector body (41).

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