8 results about "Graphene production techniques" patented technology

The invention discloses an energy-saving graphene blending stirrer, and relates to the technical field of graphene production. Comprising an equipment base, a cylindrical stirring tank is fixedly installed on the equipment base, a discharging pipe is fixedly installed on the equipment base and located on the outer side of the stirring tank, and a valve is fixedly arranged on the discharging pipe; a driving assembly is arranged on the stirring tank, an L-shaped frame plate is fixedly mounted on the driving assembly, and an auxiliary assembly is arranged on the L-shaped frame plate; a support plate is fixedly installed on the outer side face of the stirring tank, an intermittent discharging assembly is fixedly installed on the support plate, and the driving assembly comprises an outer gear ring fixedly installed on the stirring tank. Through cooperative use of the driving assembly, the auxiliary assembly and the intermittent discharging assembly, the feeding process of the graphene powder and the stirring process of the solvent are effectively controlled, it is ensured that the graphene powder and the solvent are fully mixed, and the production efficiency and the product quality are greatly improved.

This utility model relates to the field of modified graphene production technology and discloses a reaction device for modified graphene production, including a protective mechanism on which a reaction mechanism is mounted. The protective mechanism includes a base, a fixed arc-shaped baffle fixedly connected to the top of the base, a movable arc-shaped baffle disposed on the inner side of the fixed arc-shaped baffle, and an external toothed ring fixedly connected to the outer side of the movable arc-shaped baffle. A bracket is fixedly connected to the top of the base, and a servo motor is fixedly connected to the bracket. A gear is fixedly connected to the output end of the servo motor. The fixed arc-shaped baffle and the movable arc-shaped baffle form a ring-shaped protective cover, effectively preventing external interference during the reaction process and avoiding burns to personnel from the high-temperature reaction vessel. Driven by the servo motor, the protection range can be dynamically adjusted. The side of the reaction vessel is exposed during feeding or maintenance, while a closed protective space is formed during the reaction, improving operational safety and reaction stability.

The utility model discloses a production technology field's water washing device for graphene production with air dry function, including collection water tank and two fixed plate, the fixed plate is located the top of collection water tank, the top fixed connection of collection water tank has two mounting brackets, the top of mounting bracket with the fixed plate fixed connection, the inside rotation between two mounting brackets is connected with two transmission roll, the bottom rotation of fixed plate is connected with the thread rod, the outside of thread rod is screwed with the thread cover, one side the top fixed connection of fixed plate has the motor, the power output shaft bottom of motor penetrates fixed plate and extends to the bottom of fixed plate, and the power output shaft bottom of motor with one side thread rod fixed connection, this water washing device for graphene production with air dry function, the structure design is reasonable, realizes flexible height adjustment while guaranteeing transmission stability, can realize the quick disassembly of filter plate.

The invention discloses a graphene production and preparation device, and relates to the technical field of graphene production, the graphene production and preparation device comprises a kettle body, the top of the kettle body is hermetically connected with an end cover matched with the kettle body, the top of the end cover is provided with a motor cover communicated with the end cover, and the motor cover is internally provided with a driving assembly; the output end of the driving assembly is in linkage connection with a stirring assembly, the inner side of the stirring assembly is movably provided with a stirring assembly rotationally connected with the output end of the driving assembly, and the stirring assembly is reversely stirred by the acting force of the stirring assembly. The stirring assembly and the movable assembly are arranged, so that the stirring rod can realize fixed-point horizontal stirring while rotating and stirring under the rotating force of the motor, fixed-point longitudinal stirring can be realized after the force is released, and materials in the reaction kettle can be subjected to staged positioning horizontal vibration and small-amplitude up-down vibration in the stirring process; therefore, the mixing uniformity is better, the materials are closer, and the direct influence of air on material mixing is reduced.

The present invention relates to the technical field of graphene production, and provides a carbon reduction production method for Joule heat biomass graphene. The present invention pyrolyzes biomass to obtain biochar; applies alternating current to the biochar to perform a first Joule heat reaction to obtain graphene-like substances; applies direct current to the graphene-like substances to perform a second Joule heat reaction to obtain biomass graphene. The present invention proposes a biomass graphene production strategy that couples pyrolysis with Joule heat reaction, uses a low-energy pyrolysis process to release biomass pyrolysis volatiles in advance, and then uses high-energy AC / DC instantaneous Joule heat reactions to focus energy on structural optimization, thereby greatly improving energy utilization. In summary, the present invention improves energy utilization efficiency and minimizes carbon emissions in the biomass graphene production process through energy distribution structure adjustment, which is beneficial to the large-scale industrial production and application of biomass graphene.

The invention relates to the technical field of graphene production, in particular to an ultrasonic-assisted production device for preparing graphene, which comprises a charging unit, the charging unit comprises a tank body, and a sound insulation layer is mounted on an interlayer in the middle of the tank body; the stirring unit comprises a stirring motor mounted in the center of the bottom of the tank body, and a stirring shaft is fixed to the driving end of the stirring motor through a coupler; the discharging unit comprises a discharging pipe welded to the bottom of the tank body, a telescopic rod is installed at the bottom end of the discharging pipe, and a conveying pipe is welded to the outer side of the discharging pipe; the preparation unit comprises a tank cover mounted at the top of the tank body, a supporting plate is welded to the outer side of the tank cover, a transmission shaft is in interference fit with the center of the top of the tank cover in a penetrating mode through a bearing, and a mounting arm is welded to the outer side of the bottom end of the transmission shaft; according to the invention, the production efficiency is improved, the phenomenon of solvent volatilization loss or graphene edge oxidation is prevented, and the noise and noise pollution generated by the production device are reduced at the same time.

The invention discloses a graphene raw material processing technology, and relates to the technical field of graphene production, and the graphene raw material processing technology comprises the following steps: raw material mixing and stirring, oxidation reaction, washing and filtering, mechanical grinding and magnetic separation, ultrasonic dispersion, reduction reaction and post-treatment. According to the method, the quality and purity of graphite oxide can be effectively guaranteed by accurately controlling the early-stage procedures such as raw material mixing and stirring, oxidation reaction, washing and filtering, and a good foundation is laid for subsequent graphene preparation; a high-energy ball mill is adopted for mechanical grinding, the graphite oxide structure can be refined, the material performance can be improved, iron-based metal impurities can be accurately removed through the arrangement of a magnetic separation device, the quality of a graphene product is further improved, and application of the graphene product in the high-end field is facilitated; through close cooperation of ultrasonic dispersion, reduction reaction and post-treatment procedures, graphene oxide can be stably converted into high-quality graphene, the whole process cost is relatively low, and large-scale industrial production, popularization and application are facilitated.

The invention relates to the technical field of graphene production, in particular to a graphene oxidation-reduction production device which comprises a working box, a first driving motor, a supporting seat and a sulfuric acid inlet, a second driving motor is fixedly arranged at the top of the supporting seat, and one end of the second driving motor is fixedly connected with a heating box; a water tank and an ice-water bath box are fixedly arranged on the side wall of the supporting seat, a feeding opening is formed in the top of the working box in a penetrating mode, a shifting piece is movably arranged at the bottom end of the feeding opening, a first sliding groove is formed in the side, close to the feeding opening, of the inner wall of the working box, and a placing assembly is slidably arranged on the inner wall of the first sliding groove; according to the graphene oxidation-reduction production device, the maximum capacity of the placing box is fixed, a baffle arranged in front of a shifting piece rotates upwards to block a feeding outlet in the bottom of a feeding port, so that graphene cannot be continuously fed, and quantitative setting effectively avoids the situation that the feeding amount of potassium permanganate cannot be matched with the weight of graphene needing to react in the later period.