A raw material mixing device for preparing graphene oxide

Abstract

The utility model relates to the field of mixing equipment, and in particular to a raw material mixing device for preparing graphene oxide. It includes a mixing tank, a sulfuric acid storage box, a processing box and a processing assembly. The tops of both sides of the mixing tank are provided with mounting plates, the sulfuric acid storage box and the processing box are correspondingly arranged on the two mounting plates, and the two sides of the mixing tank are respectively connected with a dosing pipe and an exhaust pipe, and a manual valve is arranged on the dosing pipe, and the end thereof away from the mixing tank is connected with the sulfuric acid storage box, and the exhaust pipe is connected with the processing box. The utility model is connected with a processing box on the mixing tank through an exhaust pipe, and harmful substances in the gas are adsorbed by an activated carbon adsorption plate, and then discharged through the exhaust pipe, thereby improving the safety of operation during the mixing process and reducing environmental pollution; and a drying light bar is arranged above the activated carbon adsorption plate, and the activated carbon adsorption plate is dried by the drying light bar to ensure that the internal capillary is unobstructed.

Description

Technical Field

[0001] The utility model relates to the field of mixing equipment, in particular to a raw material mixing device for preparing graphene oxide. Background Art

[0002] Graphene oxide is a commonly used graphene derivative. During the preparation process, it usually undergoes oxidation treatment, annealing treatment and dispersion treatment. During the oxidation treatment, a mixing device is required to mix natural graphite or graphite materials from other sources with a strong oxidant to form an oxidation product of graphite. This process causes the carbon atoms on the graphite surface to chemically bond with oxygen atoms to form the structure of graphite oxide. The mixing device is mostly composed of a tank body and a stirring component. The stirring component is used to stir and mix the raw materials in the tank body to accelerate its oxidation reaction.

[0003] A Chinese patent with authorization announcement number CN211754198U discloses a graphite powder and oxidant mixing device for preparing single-layer graphene oxide. It adds solid graphite powder and oxidant to the acid solution in a mixing tank through a solid feeding auxiliary device, which can prevent the acid solution from splashing and effectively protect personnel safety. Moreover, through reasonable structural design, the solid feeding auxiliary device maintains a certain distance from the acid solution to reduce the possibility of contact with the acid solution, thereby not affecting the effective utilization of the acid solution.

[0004] However, the above-mentioned mixing device still has certain defects in its application in the graphene preparation process. During the mixing reaction of graphene raw materials and strong acid solutions, a large amount of gases such as sulfuric acid and carbon dioxide will be released. Direct discharge of these gases without treatment will cause harm to human health and may also cause explosion or fire hazards. Summary of the invention

[0005] In view of the problems existing in the background technology, a raw material mixing device for preparing graphene oxide is proposed. A processing box is connected to the mixing tank through an exhaust pipe, and harmful substances in the gas are adsorbed by an activated carbon adsorption plate, and then discharged through the exhaust pipe, which improves the safety of the operation during the mixing process and reduces environmental pollution; and a drying light bar is arranged above the activated carbon adsorption plate, and the activated carbon adsorption plate is dried by the drying light bar to ensure that the internal capillaries are unobstructed.

[0006] The utility model proposes a processing component, including an activated carbon adsorption plate, a driving motor, a screw rod, a wire sleeve, a movable plate and a drying light strip; the screw rod is arranged above the activated carbon adsorption plate, one end of the screw rod is connected to a driving motor for driving the screw rod to rotate, the wire sleeve is threadedly connected to the screw rod, the movable plate is connected to the bottom of the wire sleeve, and two groups of drying light strips are arranged, which are respectively connected to the two sides of the bottom of the movable plate.

[0007] In order to better realize the utility model, further, both ends of the movable plate are provided with limiting holes, and guide rods are provided through the two limiting holes.

[0008] The utility model further proposes a raw material mixing device for preparing graphene oxide, which is equipped with the above-mentioned processing assembly, including a mixing tank, a sulfuric acid storage tank and a processing tank, the tops of both sides of the mixing tank are provided with mounting plates, the sulfuric acid storage tank and the processing tank are correspondingly arranged on the two mounting plates, the two sides of the mixing tank are respectively connected with a dosing pipe and an exhaust pipe, a manual valve is arranged on the dosing pipe, and the end of the dosing pipe facing away from the mixing tank is connected with the sulfuric acid storage tank, the exhaust pipe is connected with the processing box, the processing assembly is arranged in the processing box, and the top of the processing box is connected with an exhaust pipe.

[0009] In order to better realize the utility model, further, a stirring motor is installed on the top of the mixing tank, and the output end of the stirring motor passes through the mixing tank and is connected to a stirring shaft, and a plurality of stirring plates for mixing are obliquely provided on the stirring shaft.

[0010] In order to better realize the utility model, further, the sulfuric acid storage box and the mixing tank are both connected with a feed pipe, the bottom of the mixing tank is connected with a discharge pipe, and the feed pipe and the discharge pipe are both threadedly connected with pipe covers.

[0011] In order to better realize the utility model, further, the activated carbon adsorption plate is detachably installed in the processing box, the screw rod is rotatably set on the inner wall of the processing box through a bearing, the driving motor is installed on the back of the processing box, and the two ends of the guide rod are connected to the inner wall of the processing box.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects: a treatment box is connected to the mixing tank through an exhaust pipe, and an activated carbon adsorption plate is arranged in the treatment box. Harmful substances in the gas are adsorbed by the activated carbon adsorption plate and then discharged through the exhaust pipe, thereby improving the safety of operation during the mixing process and reducing environmental pollution; and a drying light strip is arranged above the activated carbon adsorption plate, and the activated carbon adsorption plate is dried by the drying light strip to ensure that the internal capillaries are unobstructed; further, the movable plate can be driven to drive the drying light strip to move through the cooperation of the driving motor, the screw rod and the wire sleeve, thereby expanding the drying area of ​​the activated carbon adsorption plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1This is a schematic structural diagram of a raw material mixing device for preparing graphene oxide according to the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the front view structure of

[0016] Figure 3 for Figure 2 Schematic diagram of the rear view structure.

[0017] Figure numerals: 1. activated carbon adsorption plate; 2. driving motor; 3. screw rod; 4. screw sleeve; 5. movable plate; 6. drying light strip; 7. guide rod; 8. mixing tank; 9. sulfuric acid storage tank; 10. treatment tank; 11. mounting plate; 12. dosing pipe; 13. exhaust pipe; 14. manual valve; 15. exhaust pipe; 16. stirring motor; 17. stirring shaft; 18. stirring plate; 19. feed pipe; 20. discharge pipe; 21. pipe cover. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] In the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0021] Embodiment 1:

[0022] like Figure 1-Figure 3As shown, the utility model proposes a raw material mixing device for preparing graphene oxide, comprising a mixing tank 8, a sulfuric acid storage tank 9, a processing tank 10 and a processing assembly, the tops of both sides of the mixing tank 8 are provided with mounting plates 11, the sulfuric acid storage tank 9 and the processing tank 10 are correspondingly arranged on the two mounting plates 11, the two sides of the mixing tank 8 are respectively connected with a dosing pipe 12 and an exhaust pipe 13, a manual valve 14 is arranged on the dosing pipe 12, and the end thereof facing away from the mixing tank 8 is connected with the sulfuric acid storage tank 9, the exhaust pipe 13 is connected with the processing tank 10, the processing assembly is arranged in the processing tank 10, and the top of the processing tank 10 is connected with an exhaust pipe 15.

[0023] Furthermore, a stirring motor 16 is installed on the top of the mixing tank 8, and the output end of the stirring motor 16 is connected to a stirring shaft 17 through the mixing tank 8. A plurality of stirring plates 18 for mixing are inclinedly provided on the stirring shaft 17. The stirring motor 16 drives the stirring shaft 17 to rotate, and the stirring shaft 17 drives the stirring plates 18 to fully mix the graphite raw material and the strong acid solvent, thereby accelerating the mixing speed.

[0024] Furthermore, the sulfuric acid storage tank 9 and the mixing tank 8 are both connected with a feed pipe 19, and the bottom of the mixing tank 8 is connected with a discharge pipe 20. The feed pipe 19 and the discharge pipe 20 are both threadedly connected with a pipe cover 21, and raw materials can be injected into the sulfuric acid storage tank 9 and the mixing tank 8 through the feed pipe 19.

[0025] The working principle of the utility model is as follows: when in use, the graphite raw material is injected into the mixing tank 8 through the feed pipe 19, and the strong acid solvent is injected into the sulfuric acid storage tank 9. After the injection, the tube cover 21 is screwed on, and the manual valve 14 is opened to allow the strong acid to enter the mixing tank 8 through the dosing pipe 12, wherein the sulfuric acid storage tank 9, the dosing pipe 12 and the mixing tank 8 are all made of corrosion-resistant materials. During the injection process, the stirring motor 16 is started, and the stirring motor 16 drives the stirring shaft 17 to rotate, and the stirring shaft 17 drives the stirring plate 18 to fully mix the graphite raw material and the strong acid solvent. The harmful gas generated during the stirring process enters the processing box 10 through the exhaust pipe 13, and is processed by the processing component and then discharged through the outlet pipe 15.

[0026] Embodiment 2:

[0027] like Figure 1-Figure 3As shown, the utility model proposes a raw material mixing device for preparing graphene oxide. On the basis of the above embodiments, this embodiment discloses in detail the specific structure of the processing component, which includes an activated carbon adsorption plate 1, a driving motor 2, a screw 3, a wire sleeve 4, a movable plate 5 and a drying light strip 6; the activated carbon adsorption plate 1 is detachably installed in the processing box 10, the screw 3 is rotatably set on the inner wall of the processing box 10 through a bearing, and is located above the activated carbon adsorption plate 1, one end of the screw 3 is connected to a driving motor 2 for driving it to rotate, and the driving motor 2 is installed on the back of the processing box 10, the wire sleeve 4 is threadedly connected to the screw 3, the movable plate 5 is connected to the bottom of the wire sleeve 4, and the drying light strip 6 is provided with two groups, which are respectively connected to the two sides of the bottom of the movable plate 5.

[0028] Furthermore, both ends of the movable plate 5 are provided with limiting holes, and guide rods 7 are provided through the two limiting holes, and both ends of the guide rods 7 are connected to the inner wall of the processing box 10 .

[0029] In the present embodiment, when in use, the harmful gas entering into the treatment box 10 passes through the activated carbon adsorption plate 1, and the activated carbon adsorption plate 1 is used to adsorb the harmful gas inside. Since the gas contains a large amount of water, during long-term use, the water attached to the surface of the activated carbon adsorption plate 1 will block the capillary. The activated carbon adsorption plate 1 is dried by the drying light strip 6 to ensure that the internal capillaries are unobstructed. During the drying process, the driving motor 2 is started, and the driving motor 2 drives the screw rod 3 to rotate. During the rotation of the screw rod 3, the movable plate 5 is driven by the wire sleeve 4 to move under the limit of the guide rod 7, thereby driving the drying light strip 6 to change position, thereby expanding the drying area of ​​the activated carbon adsorption plate 1.

[0030] In addition, it should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, in the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "one end", "the other end", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the invention is usually placed when used, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A raw material mixing device for preparing graphene oxide, characterized in that: The invention comprises a treatment component, a mixing tank (8), a sulfuric acid storage tank (9) and a treatment tank (10), wherein the treatment component comprises an activated carbon adsorption plate (1), a driving motor (2), a screw rod (3), a wire sleeve (4), a movable plate (5) and a drying light strip (6); the screw rod (3) is arranged above the activated carbon adsorption plate (1), one end of the screw rod (3) is connected to a driving motor (2) for driving the screw rod to rotate, the wire sleeve (4) is threadedly connected to the screw rod (3), the movable plate (5) is connected to the bottom of the wire sleeve (4), and the drying light strip (6) is provided with two groups, which are respectively connected to the two sides of the bottom of the movable plate (5); both ends of the movable plate (5) are provided with A limit hole is provided, and guide rods (7) are provided in both limit holes; mounting plates (11) are provided on the tops of both sides of the mixing tank (8); the sulfuric acid storage tank (9) and the treatment tank (10) are arranged on the two mounting plates (11) respectively; both sides of the mixing tank (8) are connected with a dosing pipe (12) and an exhaust pipe (13), respectively; a manual valve (14) is provided on the dosing pipe (12), and the end thereof facing away from the mixing tank (8) is connected with the sulfuric acid storage tank (9); the exhaust pipe (13) is connected with the treatment tank (10); the treatment assembly is arranged in the treatment tank (10), and the top of the treatment tank (10) is connected with an exhaust pipe (15).

2. A raw material mixing device for preparing graphene oxide according to claim 1, characterized in that: A stirring motor (16) is installed on the top of the mixing tank (8), and the output end of the stirring motor (16) passes through the mixing tank (8) and is connected to a stirring shaft (17). A plurality of stirring plates (18) for mixing are obliquely arranged on the stirring shaft (17).

3. A raw material mixing device for preparing graphene oxide according to claim 1, characterized in that: The sulfuric acid storage tank (9) and the mixing tank (8) are both connected to a feed pipe (19), the bottom of the mixing tank (8) is connected to a discharge pipe (20), and pipe covers (21) are both threadedly connected to the feed pipe (19) and the discharge pipe (20).

4. A raw material mixing device for preparing graphene oxide according to claim 1, characterized in that: The activated carbon adsorption plate (1) is detachably mounted in a processing box (10); the screw rod (3) is rotatably mounted on the inner wall of the processing box (10) via a bearing; the drive motor (2) is mounted on the back of the processing box (10); and both ends of the guide rod (7) are connected to the inner wall of the processing box (10).

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