CN110589816B

CN110589816B - Magnetic suspension filter device of graphene based ultrasonic stripping method

Info

Publication number: CN110589816B
Application number: CN201910965797.1A
Authority: CN
Inventors: 杨永生
Original assignee: Shaanxi Tuoxun Construction Engineering Co ltd
Current assignee: Shaanxi Tuoxun Construction Engineering Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2022-08-30
Anticipated expiration: 2039-10-12
Also published as: CN110589816A

Abstract

The invention relates to the technical field of graphite stripping, and discloses a magnetic suspension filtering device of graphene based on an ultrasonic stripping method, which comprises a box body, wherein an ultrasonic vibrator is fixedly arranged in the box body, the upper end of the ultrasonic vibrator is electrically connected with a voltage stabilizer through a waterproof electric wire, magnets are fixedly arranged on two side walls in the box body, electromagnets are fixedly arranged in the box body, a buffer layer is sleeved on the outer surface of a supporting rod, a filtering sleeve is sleeved on the outer surface of the buffer layer, a permanent magnet is fixedly arranged on the upper wall in the filtering sleeve, the vibration of the ultrasonic vibrator is controlled, the graphite is vibrated and separated into single-layer or multi-layer graphene, the electric quantity generated by magnetic electricity generation is stored in an accumulator by cutting a magnetic induction wire in the box body through vibration, the electric quantity is released when needed, the polarity of the electromagnets is controlled through a potentiometer, and the magnetic principle is utilized, reacting with a permanent magnet to control attraction and repulsion, and filtering the separated graphene.

Description

Magnetic suspension filter device of graphene based ultrasonic stripping method

Technical Field

The invention relates to the technical field of graphite stripping, in particular to a magnetic suspension filtering device based on an ultrasonic stripping method for graphene.

Background

The specific operation process comprises the steps of firstly oxidizing graphite into graphite oxide by using strong oxidants such as concentrated sulfuric acid, concentrated nitric acid, potassium permanganate and the like, inserting oxygen-containing functional groups between graphite layers in the oxidation process so as to increase the graphite layer spacing, then carrying out ultrasonic treatment for a period of time to form single-layer or multi-layer graphene oxide, and then reducing the graphene oxide into the graphene by using a strong reducing agent such as hydrazine hydrate and sodium borohydride.

For example, in application No. CN 105645390A, graphene has excellent mechanical properties, thermal conductivity, electrical conductivity, and optical properties, and besides, graphene also has excellent magnetic properties, ultra-high specific surface area (theoretical value up to 2630m2/g), and adsorption properties, etc., and a redox method can prepare a large amount of graphene at relatively low cost, and is currently the most efficient method for preparing graphene.

However, research has found that graphene produced by a redox method is easily and inevitably damaged by strong acid and strong oxidant during intercalation, so that the original structure of graphene cannot be completely recovered even after the graphene is reduced by a strong reducing agent, and irreversible agglomeration is very likely to occur, so that the specific surface area and the excellent performances such as high electrical conductivity, high thermal conductivity and high light transmittance of the graphene are greatly reduced.

The existing ultrasonic vibration graphite separation method is to prepare graphite oxide by a Hummer method; placing graphite oxide into water for ultrasonic dispersion to form a uniformly dispersed graphene oxide solution with the mass concentration of 0.25-1 g/L, and then dropwise adding ammonia water with the mass concentration of 28% into the graphene oxide solution; dissolving a reducing agent in water to form an aqueous solution with the mass concentration of 0.25-2 g/L, uniformly mixing the prepared graphene oxide solution and the aqueous solution of the reducing agent, placing the obtained mixed solution under an oil bath condition for stirring, separating graphene after the reaction is finished, and adding the graphene into the solvent to be additionally filtered out.

Disclosure of Invention

In order to realize the aim of preparing and filtering the whole body, the invention provides the following technical scheme: the utility model provides a graphite alkene base is in magnetic suspension filter equipment of ultrasonic wave stripping method, the power distribution box comprises a box body, the inside fixed mounting of box has ultrasonic vibrator, and ultrasonic vibrator's upper end is connected with the stabiliser through waterproof electric wire, and the equal fixed mounting of inside both sides wall of box has magnet, the inside diapire of box has the electro-magnet through bracing piece fixed mounting, and the buffer layer has been cup jointed to the surface of bracing piece, and the surface of buffer layer has cup jointed and has filtered the sleeve, it has the permanent magnet just to be located the electro-magnet fixed mounting directly over to filter the inside upper wall of sleeve.

The invention has the beneficial effects that: after graphite is put into special graphite layer expanding liquid for a period of time, the ultrasonic vibrator is controlled to vibrate, the graphite is vibrated and separated into single-layer or multi-layer graphene, magnetic induction lines are arranged in the vibration cutting box, electric quantity generated by magnetic electrification is stored in the storage battery, the electric quantity is released when needed, the polarity of the electromagnet is controlled through the potentiometer, the separated graphene is filtered out by utilizing the magnetic principle and reacting with the permanent magnet to control attraction and repulsion, and the effect of filtering the separated graphene by utilizing self energy is achieved.

Preferably, the length of the symmetrical swing arm in both sides of the filter sleeve is attached to the surface of the magnet, the same opening in size is formed in the surface of the swing arm, and the inner wall of the filter sleeve is provided with a sliding groove matched with the buffer layer.

Preferably, the magnets are of opposite polarities, and the upper surfaces of the magnets are fixedly connected with limiting blocks.

Preferably, the inside diapire fixed mounting of box has the battery, and the right side fixed mounting of battery has the potentiometre, and the upper portion fixed mounting of potentiometre has the electric property route.

Preferably, the ultrasonic vibrators are annularly distributed in the box body.

Preferably, the outer surface of the buffer layer is provided with a rubber layer to prevent solvent from splashing due to overlarge acting force when the buffer layer suddenly falls or rises due to magnetic change.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of structure A of the present invention;

FIG. 3 is a top view of the structure of the present invention.

In the figure: the device comprises a box body 1, an ultrasonic vibrator 2, a waterproof wire 3, a voltage stabilizer 4, a magnet 5, a support rod 6, an electromagnet 7, a buffer layer 8, a filter sleeve 9, a permanent magnet 10, a swing arm 11, a hole 12, a sliding chute 13, a limiting block 14, a storage battery 15, a potentiometer 16, an electric path 17 and a rubber layer 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a graphene magnetic suspension filtering apparatus based on ultrasonic stripping method includes a case 1, a storage battery 15 is fixedly installed on the bottom wall of the case 1, a potentiometer 16 is fixedly installed on the right side of the storage battery 15, an electrical path 17 is fixedly installed on the upper portion of the potentiometer 16, the potentiometer 16 is a resistance element having three terminals and a resistance value adjustable according to a certain variation rule, the potentiometer 16 generally includes a resistor and a movable brush, when the brush moves along the resistor, the output terminal obtains a resistance value or a voltage in a certain relation with a displacement amount, the potentiometer 16 can be used as a three-terminal element or a two-terminal element, the latter can be regarded as a variable resistor, when the potentiometer 16 is used as a current controller, one selected current output terminal must be a sliding contact terminal, an ultrasonic vibrator 2 is fixedly installed inside the case 1, the ultrasonic vibrator 2 is distributed in the box body 1 in a ring shape, the upper end of the ultrasonic vibrator 2 is electrically connected with a voltage stabilizer 4 through a waterproof wire 3, which is a device designed to automatically maintain constant voltage in electronic engineering, one voltage stabilizer 4 can be simple 'feedforward' design or can comprise a negative feedback control loop, the voltage stabilizer 4 can also use an electromechanical mechanism or an electronic module, according to different designs, the voltage stabilizer 4 can be divided into direct current voltage stabilization and alternating current voltage stabilization, the voltage stabilizer 4 is often used in a power supply system and is matched with a rectifier, an electronic filter and the like to provide stable output voltage, two inner side walls of the box body 1 are fixedly provided with magnets 5, the magnets 5 are opposite in shape, the upper surface is fixedly connected with a limiting block 14, and the inner bottom wall of the box body 1 is fixedly provided with an electromagnet 7 through a supporting rod 6, the outer surface of the support rod 6 is sleeved with a buffer layer 8, the outer surface of the buffer layer 8 is provided with a rubber layer 18, the phenomenon that the acting force is too large when falling down or rising suddenly due to the change of magnetism is prevented, so that the solvent splashes is avoided, the outer surface of the buffer layer 8 is sleeved with a filtering sleeve 9, the length of swing arms 11 which are symmetrical on two sides of the filtering sleeve 9 is attached to the surface of the magnet 5, the surface of the swing arms 11 is provided with openings 12 with the same size, the inner wall of the filtering sleeve 9 is provided with a sliding chute 13 matched with the buffer layer 8, the upper wall inside the filtering sleeve 9 is fixedly provided with a permanent magnet 10 right above the electromagnet 7, and the permanent magnet 10, namely a permanent magnet, can be a natural product, also called a natural magnet, can be manufactured manually and has a wide hysteresis loop, high coercivity and high remanence, and can be a material which can keep constant magnetism once magnetized, also called a permanent magnet material and a hard magnet material, the permanent magnet works in a second quadrant demagnetization part of a magnetic return line after deep magnetic saturation and magnetization so as to ensure the maximum stored magnetic energy and stable magnetism.

When using, graphite soaks a period of time in the solvent after, start ultrasonic vibrator 2, vibrate the separation with graphite in the solvent, because ultrasonic vibrator 2 is linear vibration, just cut the magnetic induction line that magnet 5 produced, magnetism is given birth to the electricity and is stored in battery 15 through stabiliser 4, after the separation is finished, battery 15 releases the electric quantity and adjusts the electric property of electro-magnet 7 through potentiometre 16, according to the principle that 5 like poles repel each other of magnet, opposite sex attract, control filter sleeve 9 and swing arm 11 upwards or downstream, separate out graphite alkene, because ultrasonic vibrator 2 is the ring array, can be better vibrate graphite, thereby accelerate production efficiency.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a graphite alkene base is magnetic suspension filter equipment in ultrasonic wave peel method, includes box (1), its characterized in that: the water-saving box is characterized in that an ultrasonic vibrator (2) is fixedly mounted inside the box body (1), the upper end of the ultrasonic vibrator (2) is electrically connected with a voltage stabilizer (4) through a waterproof wire (3), magnets (5) are fixedly mounted on two inner side walls of the box body (1), an electromagnet (7) is fixedly mounted on the inner bottom wall of the box body (1) through a support rod (6), a buffer layer (8) is sleeved on the outer surface of the support rod (6), a filtering sleeve (9) is sleeved on the outer surface of the buffer layer (8), and a permanent magnet (10) is fixedly mounted on the inner upper wall of the filtering sleeve (9) and is positioned right above the electromagnet (7);

the magnet (5) is of opposite polarity, a storage battery (15) is fixedly mounted on the bottom wall inside the box body (1), a potentiometer (16) is fixedly mounted on the right side of the storage battery (15), an electric passage (17) is fixedly mounted on the upper portion of the potentiometer (16), and the ultrasonic vibrators (2) are annularly distributed inside the box body (1);

the surface of the swing arm (11) is provided with a hole (12) with the same size, and the inner wall of the filtering sleeve (9) is provided with a sliding groove (13) matched with the buffer layer.

2. The magnetic suspension filtering device based on the graphene-based ultrasonic exfoliation method as claimed in claim 1, wherein: the lengths of the swing arms (11) which are symmetrical on the two sides of the filtering sleeve (9) are attached to the surface of the magnet (5).

3. The magnetic suspension filtering device based on the graphene-based ultrasonic exfoliation method as claimed in claim 1, wherein: the upper surface of the magnet (5) is fixedly connected with a limiting block (14).