Graphene oxide multi-stage filtering device

Abstract

The utility model discloses a graphene oxide multi-stage filtering device. The graphene oxide multi-stage filtering device comprises a shell, a rough filtering assembly, an evaporation impurity removal assembly and a fine filtering assembly, the shell comprises a shell and an inner container, a rough filtration assembly is arranged at the top of the shell, a vertical pipe is arranged at the bottom of the shell, and an evaporation impurity removal assembly is arranged on the side wall of the shell. The evaporation impurity removal assembly comprises an air inlet pipeline communicating with the lower position of the right side wall of the shell and an air outlet pipeline communicating with the higher position of the left side wall of the shell, the air inlet pipeline is connected with a hot air source, and a first one-way valve is arranged on the air outlet pipeline. The inner container is arranged at the lower position in the shell, a second one-way valve is arranged at the top of the inner container, and an air inlet corresponding to the air inlet pipeline and an air outlet corresponding to the air outlet pipeline are formed in the side wall of the inner container. A fine filtration assembly is connected below the vertical pipe, and a finished product outlet pipeline is connected below the fine filtration assembly. According to the device, the inner container and the outer container are designed, and pressure resistance and corrosion resistance are both considered; multiple filtering and impurity removing means are provided, and the purity of the graphene oxide solution is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphene oxide production, and particularly relates to a multi-stage filtration device for graphene oxide. Background Art

[0002] Due to its unique properties, graphene oxide has application potential in multiple fields, including modified polymer materials, photocatalysis, optoelectronic related industries, biomedicine, etc. It can be used in the positive and negative electrode materials of batteries, solar cell materials, supercapacitors, flexible electronics and other fields. In biomedicine, the high specific surface area and large range of conjugated structures of graphene oxide make it a good choice for drug carriers, especially in the field of anti-cancer drug carriers.

[0003] In the preparation process of graphene oxide, especially when using the chemical oxidation method, strong oxidants such as nitric acid and hydrogen peroxide, as well as catalysts such as sulfuric acid, will be involved. Particulates and suspended matters will remain in the preparation product, and the oxidation reagents will also remain in the product after the reaction, affecting the purity and performance of graphene oxide.

[0004] In summary, developing a device that can filter graphene oxide solution to effectively remove impurities and unreacted chemicals in the graphene oxide solution and obtain pure graphene oxide has high production practical value. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides the following technical solution: a multi-stage filtration device for graphene oxide, including a housing, a coarse filtration component, an evaporation and impurity removal component, and a fine filtration component.

[0006] The housing includes an outer shell and an inner liner. The top of the outer shell is provided with a mounting hole for the coarse filtration component. The coarse filtration component includes a mounting ring and a filter basket installed below the mounting ring. The coarse filtration component is placed in the mounting hole for the coarse filtration component. The bottom of the outer shell is provided with a vertical pipe, and the side wall of the outer shell is provided with the evaporation and impurity removal component.

[0007] The evaporation and impurity removal component includes an intake pipe connected to the lower part of the right side wall of the outer shell and an outlet pipe connected to the upper part of the left side wall of the outer shell. The intake pipe is connected to a hot air source, and a first one-way valve is provided on the outlet pipe.

[0008] The inner liner is arranged at a lower position inside the outer shell. A second one-way valve is arranged at the top of the inner liner. Intake holes corresponding to the intake pipe are arranged on the side wall of the inner liner, and outlet holes corresponding to the outlet pipe are arranged on the side wall of the inner liner.

[0009] Further, the outer shell is made of metal material, and the inner liner is made of high borosilicate glass material.

[0010] Further, a transparent viewing window is provided on the side wall of the outer shell.

[0011] A fine filtration assembly is connected below the vertical pipe, and a finished product outlet pipe is connected below the fine filtration assembly.

[0012] Further, the fine filtration assembly includes a precision filter. The precision filter selects a microporous membrane element. External threaded connecting pipes are provided above and below the precision filter, and the external threaded connecting pipes are screwed to the inner walls of the vertical pipe and the finished product outlet pipe.

[0013] A graphene oxide multi-stage filtration device provided by the present utility model has the following advantages: The use of an inner and outer tank design takes into account pressure resistance and corrosion prevention, improving the service life of the equipment; It has multiple means of filtering and removing impurities, improving the purity of the finished graphene oxide solution. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic external view of a graphene oxide multi-stage filtration device of the present utility model;

[0016] Figure 2 It is a schematic top view of the external appearance of a graphene oxide multi-stage filtration device of the present utility model;

[0017] Figure 3 It is a schematic front view of the external appearance of a graphene oxide multi-stage filtration device of the present utility model;

[0018] Figure 4 It is a schematic internal structure view of a graphene oxide multi-stage filtration device of the present utility model;

[0019] Figure 5 It is a schematic external view of the fine filtration assembly of a graphene oxide multi-stage filtration device of the present utility model.

[0020] Description of the reference numerals in the figures: 1. housing, 101. outer shell, 1011. coarse filter assembly mounting hole, 102. inner tank, 1012. vertical pipe, 1021. air inlet hole, 1022. air outlet hole, 1023. second one-way valve, 2. coarse filter assembly, 201. mounting ring, 202. filter basket, 3. evaporation and impurity removal assembly, 301. air inlet pipe, 302. air outlet pipe, 303. first one-way valve, 4. fine filter assembly, 401. precision filter, 402. externally threaded connecting pipe, 5. finished product pipe, 6. transparent window. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown in

[0024] The housing 1 includes an outer shell 101 and an inner tank 102. The outer shell 101 is provided with a coarse filter assembly mounting hole 1011 at the top. The coarse filter assembly 2 includes a mounting ring 201 and a filter basket 202 mounted below the mounting ring 201. The coarse filter assembly 2 is placed in the coarse filter assembly mounting hole 1011. The outer shell 101 is provided with a vertical pipe 1012 at the bottom, and the evaporation and impurity removal assembly 3 is provided on the side wall of the outer shell 101.

[0025] The evaporation and impurity removal assembly 3 includes an intake pipe 301 connected to the lower part of the right side wall of the outer shell 101 and an outlet pipe 302 connected to the upper part of the left side wall of the outer shell 101. The intake pipe 301 is connected to a hot air source, and a first one-way valve 303 is provided on the outlet pipe 302.

[0026] The inner tank 102 is arranged at a lower position inside the outer shell 101. A second one-way valve 1023 is provided at the top of the inner tank 102. An intake hole 1021 corresponding to the intake pipe 301 is provided on the side wall of the inner tank 102, and an outlet hole 1022 corresponding to the outlet pipe 302 is provided on the side wall of the inner tank 102.

[0027] Preferably, the outer shell 101 is made of a metal material, and the inner tank 102 is made of a high borosilicate glass material. The metal outer shell 101 plays a role in protection and pressure resistance, while the glass inner tank 102 can resist corrosive solutions and extend the service life of the device.

[0028] Preferably, a transparent window 6 is provided on the side wall of the outer shell 101, which is convenient for observing the working conditions inside the device and facilitating the elimination of abnormalities.

[0029] A fine filtration component 4 is connected below the vertical pipe 1012, and a finished product outlet pipe 5 is connected below the fine filtration component 4.

[0030] Preferably, the fine filtration component 4 includes a precision filter 401. The precision filter 401 selects a microporous membrane element. External threaded connecting pipes 402 are provided above and below the precision filter 401, and the external threaded connecting pipes 402 are screwed to the inner walls of the vertical pipe 1012 and the finished product outlet pipe 5.

[0031] The above-mentioned graphene oxide multi-stage filtration device has the following usage method: The graphene oxide solution to be filtered is introduced into the coarse filtration component 2. Larger suspended solids and particulate matters in the solution will be intercepted by the filter basket 202. The coarse filtration component 2 can be removed for cleaning. The solution after coarse filtration enters the inner tank 102 through the first one-way valve 303. Hot air is introduced into the intake pipe 301 to roll and impact the solution, evaporating excess organic solvents and oxidants. The organic vapor is discharged from the outlet pipe 302. The second one-way valve 303 can prevent external water vapor and impurities from entering the solution when the temperature has not risen yet. The solution after evaporation and impurity removal enters the fine filtration component 4 through the vertical pipe 1012 for microporous membrane filtration. The final finished graphene oxide solution flows out through the finished product outlet pipe 5. The fine filtration component 4 is screwed onto the pipe, which is convenient for replacement when the filtration performance deteriorates.

[0032] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A graphene oxide multi-stage filtration device, characterized in that: It comprises a housing (1), a coarse filter component (2), an evaporation and impurity removal component (3) and a fine filter component (4); The housing (1) comprises an outer shell (101) and an inner tank (102); a coarse filter assembly mounting hole (1011) is provided at the top of the outer shell (101); the coarse filter assembly (2) comprises a mounting ring (201) and a filter basket (202) mounted below the mounting ring (201); the coarse filter assembly (2) is placed in the coarse filter assembly mounting hole (1011); a vertical pipe (1012) is provided at the bottom of the outer shell (101); and the evaporative impurity removal assembly (3) is provided on the side wall of the outer shell (101); The evaporative impurity removal component (3) comprises an air inlet pipe (301) connected to a lower portion of the right side wall of the housing (101) and an air outlet pipe (302) connected to a higher portion of the left side wall of the housing (101), the air inlet pipe (301) being connected to a hot air source, and a first one-way valve (303) being provided on the air outlet pipe (302); The inner liner (102) is arranged at a lower position inside the outer shell (101); a second one-way valve (1023) is arranged on the top of the inner liner (102); an air inlet (1021) corresponding to the air inlet pipe (301) is arranged on the side wall of the inner liner (102); and an air outlet (1022) corresponding to the air outlet pipe (302) is arranged on the side wall of the inner liner (102); The vertical pipe (1012) is connected to the fine filter assembly (4) below, and the fine filter assembly (4) is connected to a finished product outlet pipeline (5) below.

2. A graphene oxide multi-stage filtration device according to claim 1, characterized in that: The outer shell (101) is made of metal, and the inner shell (102) is made of high borosilicate glass.

3. A graphene oxide multi-stage filtration device according to claim 1, characterized in that: A transparent window (6) is provided on the side wall of the housing (101).

4. A graphene oxide multi-stage filtration device according to claim 1, characterized in that: The fine filtration assembly (4) comprises a precision filter (401), wherein the precision filter (401) is a microporous membrane element, and the precision filter (401) is provided with external threaded connecting pipes (402) at the top and bottom, and the external threaded connecting pipes (402) are threadedly connected to the vertical pipe (1012) and the inner wall of the finished product outlet pipe (5).

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