89 results about "Plasma flame" patented technology

A vacuum induction melting (VIM) furnace and method of using. A VIM is configured for use with metal-containing carbon powders. In operation, the metal-containing carbon powders are formed into a pellet so as to minimize or eliminate ejection of material during introduction of the pellet into the VIM processor. The VIM processor may be substituted or used in combination with a vacuum arc melt processing apparatus, an electron beam melt furnace, an ion plating furnace, a plasma flame source, a smelter, a traditional metal-metal melt furnace, or any equivalent. Pelletizing can be accomplished through use of a press or through application of any pelletizing technique and / or use of any apparatus that is able to generate pellets that have sufficient mass to avoid ejection from a VIM processor.

A method for testing the heat insulation performance of a thermal barrier coating comprises the following steps: preparing a set of plasma flame spraying equipment, preparing a metal sheet, and spraying the thermal barrier coating on the surface of the metal sheet to prepare a coating sample; preparing a high-temperature electric furnace and an aluminum oxide fiberboard with the same size as a furnace door brick, embedding the metal sheet into the aluminum oxide fiberboard, and exposing the coating surface and the back surface of the metal sheet; opening a furnace door of the high-temperature electric furnace, sealing the furnace door by using the cut aluminum oxide fiber plate as a furnace door brick, and embedding the metal sheet into the aluminum oxide fiber plate in the direction that the coating surface faces the interior of the furnace; setting a heating program of the electric furnace to heat the electric furnace to a temperature required to be tested; testing the temperature of the back surface, exposed in the air, of the metal sheet by using a laser thermometer; the steps are repeated for multiple times, the difference value between the furnace temperature and the back temperature is recorded, and the average value is calculated and can serve as the judgment basis of the heat insulation performance of the thermal barrier coating. The method is simple and convenient to operate, accurate in test condition and high in practical application value.

The invention relates to the technical field of plasma spraying, in particular to metal powder plasma spraying equipment which is characterized in that a nozzle is mounted on a spray gun, a powder conveying pipe is mounted at the nozzle, a plurality of gas conveying pipelines are uniformly arranged on the side wall of the spray pipe around the axis of the spray pipe, and an annular pipeline is fixedly mounted on the outer side wall of the spray pipe; the annular pipeline is communicated with the gas conveying pipeline, the annular pipeline is connected with an argon supply system through a flow guide pipe, an annular groove is formed in the end face, located at the outlet, of the spray pipe, and the gas conveying pipeline is communicated with the annular groove. According to the invention, the metal powder is prevented from leaving the plasma flame due to turbulent flow of the mixed gas, so that the spraying phenomenon is avoided, and the utilization rate of the spraying material of the metal powder plasma spraying process is improved on the premise of ensuring that the production efficiency of the metal powder plasma spraying process is not changed. The invention further provides a metal powder plasma spraying process.

The invention provides an embedded multifunctional plasma flame stabilizer, and relates to the technical field of plasma ignition combustion supporting. The embedded multifunctional plasma flame stabilizer comprises an evaporative flame stabilizer and an embedded exciter, wherein the evaporative flame stabilizer is provided with a combustion area defined by apron boards; the embedded exciter is installed on the surface, facing the combustion area, of the apron board. The exciter is directly integrated on the inner side of the skirt board of the flame stabilizer, and the space utilization rate and the system integration degree are improved on the premise that the aerodynamic configuration and the installation mode are not changed. The discharge area of the exciter covers the backflow area, active free radicals can be generated and local heat can be released under complex and changeable conditions, the reaction activity of mixed gas is enhanced, the ignition delay time is shortened, the ignition boundary is expanded, meanwhile, atomization and mixing are improved, the combustion efficiency is improved, and flame quenching is restrained. The device has ignition assistance, continuous excitation and active thermochemical regulation and control capabilities, and is suitable for a compact combustion chamber environment.

The utility model discloses a kind of anti-collision plasma flame torch cutting torch, including cutting torch main body, collar group, swing disc and electrode group. Collar group is made of positioning ring and float ring, electrode group is arranged therebetween, float ring can cause electrode sheet separation when contact with external object, trigger alarm. Swing disc is movably sleeved in the outer periphery of cutting torch main body, multiple contact rods and isolation plates are arranged thereon;When longitudinal or oblique contact occurs, contact rod is contacted with barrier to cause swing, drives isolation plate to be inserted between electrode sheet, realizes disconnect detection. Isolation plate is connected with positioning ring by spring, with automatic reset function. The structure realizes 360 degrees omnidirectional lateral collision detection and longitudinal, oblique protection, with the advantages of fast response, simple structure, strong self-resetting capability, etc., suitable for collision sensing and safety control of cutting torch in plasma cutting operation.

The application discloses a stable discharging circuit of an electric flame cooker and the electric flame cooker, and belongs to the technical field of electric flame cookers. The stable discharging circuit of the electric flame cooker comprises a single boosting transformer and multiple groups of discharging circuits; the multiple groups of discharging circuits comprise a first discharging circuit, a second discharging circuit and an Nth discharging circuit which are connected in parallel with each other. The single discharging circuit of the application cannot pull down and clamp the voltage of other discharging circuits when first breakdown occurs, all discharging devices (positive and negative electrodes) can be reliably broken down in turn, and the phenomenon of no current and no discharging in some branches is eliminated; under the stable state, the electrode voltages of all branches are consistent, the currents are balanced, and the sizes of plasma flames are uniform.

The present invention discloses a stove head structure and an electric flame stove, comprising: a metal top shell, a ceramic bottom plate, a plasma assembly and an air intake device; the plasma assembly is composed of an anode needle, a ceramic tube and a cathode nozzle; the outer wall of the ceramic head is provided with a plurality of ventilation slots along the circumferential direction; the folded side wall of the metal top shell is provided with an air inlet hole, and a non-return member is installed at the expanded end of the air inlet hole. The ceramic tube structure of the ceramic tube of the present invention with ventilation slots on the outer wall of the ceramic head not only reduces the cost of ceramic tube preparation, but also reduces the installation cost, while ensuring that the electrode needle will not be deformed and loosened due to thermal expansion, and realizes convection between the ventilation slot and the ejection port of the cathode nozzle, thereby improving the stability and efficiency of plasma flame injection; the present invention adopts a conical air inlet hole, a concave-convex surface design, and a non-return member made of silicone rubber material, which effectively realizes normal air intake and cuts off hot air backflow, and the cost of the non-return member is low.

The invention discloses a method for preparing SiC superfine and ultrapure powder by using a polycarbosilane synthesis byproduct, and relates to the field of materials. According to the preparation method, liquid polycarbosilane (LPCS) and a silicon-rich compound are jointly pyrolyzed into SiC superfine powder in a plasma flame heating mode, residual raw materials are decomposed again by utilizing waste heat of mixed gas, the by-product LPCS in polycarbosilane (PCS) production is fully utilized, and waste is turned into wealth; the particle size of the prepared SiC ultrafine powder is less than or equal to 500nm, and the particle size distribution is uniform; the Si / C ratio of the raw material is improved by adding the silicon-rich compound, and preparation of the ultra-pure SiC powder is achieved.

The utility model discloses a monitorable electric flame stove which comprises a stove shell, a stove head, a control module, a plasma driving circuit, a positioning module and a wireless communication module, the stove head is arranged at the top of the stove shell, and a plasma electrode is arranged on the stove head; the input end of the plasma driving circuit is connected with the control module, the output end of the plasma driving circuit is connected with the plasma electrode, and the plasma driving circuit is used for outputting high-voltage electricity under the control of the control module to enable the plasma electrode to generate plasma flames; the positioning module is connected with the control module and is used for acquiring position information of the electric flame stove; and the wireless communication module is connected with the control module and is used for transmitting the position information and the use data of the electric flame stove to a remote monitoring terminal. According to the electric flame stove capable of being monitored, the positioning module and the wireless communication module are arranged, so that a remote monitoring function is achieved, a user can obtain position information and use data of the electric flame stove in real time, particularly, safety guarantee is provided for remote monitoring of special groups such as old people, and potential safety hazards in use of the stove are reduced.

The invention discloses a method for preparing a double-layer Y2O3 etching-resistant coating through atmosphere and suspension plasma spraying, and particularly relates to the technical field of coating preparation. The method comprises the following steps: carrying out sand blasting, high-pressure water washing, blow-drying and drying pretreatment on an aluminum-based sample; spraying high-purity Y2O3 powder on the surface of the sample by adopting an atmospheric plasma spraying technology to form an APS bottom layer; grinding the surface of the APS bottom layer; putting the ground sample into an annealing furnace for annealing; after the sample is cooled, the Y2O3 suspension is injected into high-energy plasma flame flow through plasma spraying equipment, the Y2O3 suspension is melted and then impacts the surface of the APS bottom layer, the SPS top layer is formed after cooling, and finally the double-layer high-density Y2O3 etching-resistant coating is obtained. Through the double-layer structure design of APS bottoming and SPS top layer, grinding and annealing processes are combined to eliminate interlayer stress, corrosion resistance and dimensional stability are both considered, the preparation cost is lower than that of a full SPS coating, and the method is suitable for surface protection of cavity parts of semiconductor etching equipment.

The application discloses a surface treatment process of a valve core, adopts tungsten carbide and nickel-based alloy composite design, and remarkably improves the service life of the valve core under extreme environment. By introducing laser quenching treatment, the surface hardness and wear resistance are enhanced, and defects such as cracks are avoided. By adopting plasma spraying technology, the tungsten carbide powder is melted and high-speed sprayed to the surface of the valve core by means of high-temperature plasma flame, a dense, uniform and well-bonded coating is formed, and the wear resistance, corrosion resistance and sealing performance are improved. In addition, the ion nitriding treatment is used to generate a high-hardness nitride layer, forming a "hard shell-tough core" structure, and prolonging the wear resistance life. Finally, the grinding and polishing treatment is used to improve the surface flatness and smoothness, and ensure the sealing reliability. The application combines multiple advanced processes, remarkably improves the comprehensive performance of the valve core, and guarantees the stable operation of the valve under complex and severe working conditions.

The utility model relates to the technical field of plasma generator reaction, in particular to a multi-channel powder feeding device which structurally and mainly comprises an air source, a powder feeding mechanism and a plurality of powder feeding units. The powder feeding mechanism comprises a plurality of powder inlet pipes connected with the powder feeding units, a water inlet pipe, a water outlet pipe, a water cooling outer pipe, a water cooling inner pipe, a graphite mixing spray head, a plasma generator and a plasma flame. By means of the structure, a plurality of powder feeding pipes can be gathered together, various kinds of powder are mixed and then sprayed into plasma flames for high-temperature reaction, in this way, it can be avoided that one feeding system is used for each kind of powder, the whole structure is simpler, and cost is lower.

The utility model relates to the technical field of plasma flame detection, in particular to a plasma image flame detection probe, which comprises a protective tube and a protective seat fixedly mounted at the right end of the protective tube, a probe is arranged in the protective tube, an adjusting mechanism for adjusting the position of the probe is arranged in the protective tube, and a protective mechanism for protecting the probe is arranged in the protective seat. The adjusting mechanism comprises a mounting rod fixedly mounted in the protection tube, a first sliding rod is arranged in the mounting rod, a second sliding rod is arranged in the first sliding rod, one end, far away from the mounting rod, of the second sliding rod is fixedly connected with the probe, and the protection mechanism comprises a plurality of groups of protection plates rotationally mounted on the protection seat. According to the flame detection probe, the extension length of the probe is adjusted through the arranged adjusting mechanism, so that the flame detection probe can be adjusted to be proper in length according to actual use occasions, the use requirement is met, and the situation that the flame detection probe at a fixed distance influences judgment of a worker on the combustion stability of a boiler is avoided.

The present invention belongs to the technical field of nuclear power pipe cutting devices and discloses a plasma-flame composite cutting torch for cutting complex thick-walled stainless steel pipe fittings for nuclear power plants. The torch comprises a plasma cutting torch and a flame torch mounted thereon and capable of moving up and down along the axis of the plasma cutting torch. The flame torch is provided with an oxygen channel and a gas channel, respectively. The oxygen channel's gas outlet A and the gas channel's gas outlet B are located on the same horizontal plane, and the vertical distance between the oxygen channel's gas outlet A and the gas channel's gas outlet B and the plasma cutting torch's nozzle is 10 to 20 mm. By coaxially attaching a composite flame torch to an existing plasma cutting torch, the present invention reduces the energy and velocity losses of the plasma arc caused by the shock wave effect, thereby improving the capability and quality of plasma cutting and resolving the plasma cutting problem encountered by the full range of models during the AP1000 nuclear power plant thick-walled stainless steel pipe extrusion manufacturing process.

The present invention proposes a plasma ignition exciter with an adaptive flame adjustment function. The temperature monitor and the pressure monitor are set to monitor the working conditions of different temperature and different air pressure environments, and the environmental controller and the inverter controller are set to adjust the working state according to different working environments. The current controller is used to increase the input current, and the discharge controller is used to increase the discharge frequency to increase the output power, increase the plasma flame, and improve the ignition ability of the ignition exciter. This solves the problem that the traditional ignition exciter has a single output state during use and cannot meet the higher demand for ignition ability under harsh environmental conditions. It not only helps to improve the intelligence level of the ignition exciter, but also helps to improve the working stability and ignition ability of the engine in harsh environments.

The application provides a kind of plasma flame type wall-hanging stove, belongs to heating equipment technical field, the wall-hanging stove includes water outlet pipe, flue, combustion stove main body and pump water component, combustion stove main body includes stove shell, heat exchange pipe, heat conduction fin, wiping assembly and plasma torch generator;Plasma torch generator is located at the bottom of stove shell, for generating high-temperature plasma flame;Heat exchange pipe is S-shaped coiled in the position close to the top of stove shell, and its two ends are connected with water outlet pipe and pump water component respectively, and heat conduction fin is arranged at the interval in the gap of heat exchange pipe;Wiping assembly is arranged at the lower side of heat conduction fin, and is in contact with the lower surface of heat exchange pipe.The application effectively removes attached soot by wiping assembly sliding wiping the lower surface of heat exchange pipe when the wall-hanging stove is stopped, avoids dust layer to reduce heat exchange efficiency, and at the same time, S-shaped heat exchange pipe and heat conduction fin synergistically act to significantly increase heat exchange area, improve heat energy utilization rate.

The present invention provides a powder containing crystalline boron oxide particles, and provides a method for producing a powder containing crystalline boron oxide particles in a simple manner with a small number of steps. The powder according to the present invention contains crystalline boron oxide particles having a crystallinity of 20-100%. This method for producing a powder containing crystallized boron oxide particles comprises a step for supplying a carrier gas in which a boron oxide powder is dispersed into a hot plasma flame, and a step for generating boron oxide particles by supplying a cooling gas to a terminal part of the hot plasma flame.

The invention relates to the technical field of microwave plasma, in particular to a broadband normal-pressure microwave plasma torch, which adopts the structure provided by the invention and mainly comprises an outer conductor, an inner conductor, a radio frequency connector and a discharge device, the column body is connected between the first conical end and the second conical end, the first conical end is connected with the radio frequency connector, and the second conical end is connected with the discharging device. By means of the structure, the tail end of the inner conductor (electrode) is amplified, namely the second conical end, the electric field flux is increased, the excitation area of the plasma torch is enlarged, stable excitation of large-flow and large-size plasma flames is achieved, impedance matching is unbalanced due to the enlargement of the electrode, two gradually-changed impedance matching structures are additionally arranged on the design of the torch body, and the impedance matching effect is improved. And the disc at the tail end of the electrode is well matched with the coaxial structure.

The invention relates to the technical field of plasma flame cutting, and discloses a plasma flame cutting machine and process based on mechanical parking equipment manufacturing, and the plasma flame cutting machine based on mechanical parking equipment manufacturing comprises a cutting machine main body and a plasma spray head arranged at the top of the cutting machine main body; the adjusting mechanism is arranged at the bottom of the plasma nozzle; the adjusting mechanism comprises a sleeve arranged at the bottom of the plasma nozzle, a plurality of limiting blocks arranged on the inner wall of the bottom of the sleeve in an annular array mode, a plurality of driving plates arranged on the sleeve in an annular array mode and located at the intervals of the different limiting blocks, driven plates arranged at the tops of the limiting blocks, and driving grooves symmetrically formed in the outer walls of the tops of the driven plates. The driving blocks are symmetrically arranged at the top of the driving plate; and the rotating block is arranged at the bottom of the sleeve. And by arranging the rinsing mechanism, the spray head can meet the cutting requirements of different materials, adjustability of the water curtain coverage range is achieved, and the equipment can meet the different cutting requirements.

The present disclosure relates to the field of plasma ignition, and disclosed are a plasma ignition system, method and apparatus, an electronic device, and a storage medium. The main technical solution comprises: an ignition module, an electrical module, a gas supply module, a driving module, a cooling module, and a control module; the ignition module is placed on the wall of a boiler; the electrical module, the gas supply module, the driving module, the cooling module and the control module are separately connected to the ignition module; pulverized coal is placed in the boiler; the driving module, the gas supply module, the cooling module and the control module are separately connected to the electrical module; and the gas supply module and the cooling module are separately connected to the control module. Compared with the related art, in embodiments of the present disclosure, the plasma ignition system is used to generate plasma flame to ignite the pulverized coal in the boiler without using fuel oil, thereby reducing ignition costs.

The invention belongs to the technical field of functional material preparation, and provides GYbZ powder for PS-PVD spraying and a preparation method of the GYbZ powder. The preparation method comprises the following steps: mixing powder preparation raw materials with water, and carrying out ball milling to obtain slurry; sequentially carrying out spray granulation and drying on the slurry to obtain a granular material; and sintering and spheroidizing the granular material by adopting plasma flame, and crushing the obtained spheroidized powder to obtain the GYbZ powder, raw materials for preparing the powder comprise the following components in percentage by mass: 38-42% of zirconium dioxide, 5-8% of ytterbium trioxide, less than or equal to 1.0% of hafnium oxide and the balance of gadolinium trioxide. According to the method, the granular material is sintered and spheroidized by adopting plasma flame, so that pores in the final GYbZ powder are relatively few. Data of the embodiment shows that the porosity of the obtained GYbZ powder is 15-19%.

The present invention discloses an exhaust gas treatment system with plasma high-temperature combustion and water curtain cooling, comprising a high-temperature combustion chamber and a water curtain cooling chamber. A cylindrical ignition divider is provided in the combustion chamber, the cylindrical ignition divider having an air dividing chamber, an air inlet pipe, an inner air dividing hole, and an outer air dividing hole, each connected to the air dividing chamber. A plasma flame is sprayed toward the top of the cylindrical ignition divider, forming an inner flame portion and an outer flame portion. The inner flame portion burns and processes the exhaust gas ejected from the inner air dividing hole, while the outer flame portion burns and processes the exhaust gas ejected from the outer air dividing hole. A pancake-shaped air distribution box is connected to the air outlet of the gas chamber, and air nozzles are arranged on the outer periphery of the pancake-shaped air distribution box. Exhaust gas that has been subjected to high-temperature combustion and enters the pancake-shaped air distribution box is ejected from each air nozzle to form an exhaust gas vortex. The present invention divides the plasma flame through the cylindrical ignition divider and distributes the gas through the pancake-shaped air distribution box to form an exhaust gas vortex, thereby ensuring more complete contact between the exhaust gas, the flame, and the water curtain, thereby improving exhaust gas treatment efficiency.

The invention relates to a plasma scouring particle preparation and optimization method based on solid rocket engine working condition calibration, and belongs to the field of plasma ablation. The method comprises the following steps: sampling from a specified part of a target solid rocket engine, observing and recording the section diameter of the tail end of a fiber after the material is ablated, and recording as D1; the preparation method comprises the following steps: by taking aluminum oxide powder as a main raw material, doping carbon powder with a certain mass ratio w, mixing, and then carrying out ball milling for a ball milling time t, so as to obtain primarily prepared washing particles; spraying out the prepared scouring particles and plasma flames together, and carrying out an ablation scouring test on a sample; the included angle alpha 2 between the sample and the plasma flame is consistent with the included angle alpha 1 between the fuel gas and the calibration part in the actual working condition of the engine; observing the diameter of the cross section of the tail end of the fiber on the surface of the ablated sample, recording as D2, and calculating the ratio c of D2 to D1, wherein c = D2 / D1; and performing iterative optimization. According to the invention, the precision degree of simulating the working condition of the solid rocket engine in the plasma ablation scouring process is improved.

The present application relates to the field of electrochemistry, especially a toxic gas treatment method using plasma flame, comprising the following steps: S1: a plasma torch generates a plasma flame; S2: toxic gas is collected by an air inlet cavity and transmitted to a reaction cavity; S3: the reaction cavity decomposes and reacts the toxic gas by the plasma flame generated by the plasma torch; S4: the transition of the product is carried out through an intermediate flange; S5: soluble products and dust are absorbed and treated through a water tank and a spray tower, and finally the product is released from an exhaust port. The present application uses a gas transmission path containing a plasma flame to treat harmful gas, judges the remaining gas in the plasma torch through a remaining capacity model, and safely locks the torch according to the remaining capacity threshold, ensuring the safe operation of the equipment; and the treatment process is automatically operated throughout, simple to operate, the equipment is corrosion-resistant, has a long service life, and has excellent harmful gas treatment efficiency.

The invention discloses a plasma cutting forming device for preparing a motorcycle frame, and relates to the technical field of plasma cutting, the plasma cutting forming device comprises a gun head and a handle, an air supply structure is jointly installed between the gun head and the handle, a nozzle is installed on the gun head in a threaded mode and communicated with the gun head, and the air supply structure injects air into the nozzle to form plasma flames. The device has the advantages that automatic dynamic synchronization of the cutting speed and the air inflow is achieved through the speed synchronizing mechanism, different cutting working conditions are accurately adapted, the problems of notch burning loss, slag adhering or incomplete cutting caused by mismatching of the cutting speed and the air inflow are solved, and the machining precision of the frame component is remarkably improved. In the aspect of height adaptation, manual rough adjustment and automatic self-adaptive fine adjustment are combined, the machining requirements of frame components with different thicknesses can be met, the surface flatness difference of workpieces can be coped with, operation is easy and convenient, and the manual adjustment difficulty is reduced.

A focused plasma ionization source-mass spectrometer detector and its preparation method, first preparing a hollow polymer cone, then inserting a metal conductive wire into the hollow polymer cylinder, and then introducing a gas pipeline at the rear end with a flow rate of 100-400 mL min ‑1 When a 3.0-4.0 kV DC voltage is applied to the metal conductive wire, a visible plasma flame is generated between the hollow polymer cone and the counter electrode. When a liquid sample solution is loaded on the counter electrode, a corresponding mass spectrum can be obtained through mass spectrometry detection. The present invention can not only effectively focus the reagent ions generated during the plasma ionization process, but also be used in conjunction with a commercial mass spectrometer. A low-current DC power supply is used to generate an observable plasma flame, which is also convenient for directly locating the position of the sample point. The cone structure can reduce the carrier flow rate of the plasma flame to 0.4 L min ‑1 The present invention has the advantages of simple operation, low price, good reproducibility, and high sensitivity of mass spectrometry analysis.

The utility model relates to an alloy target material spraying gas stable supply device which comprises a gas supply pipeline and a plasma spray gun, one end of the gas supply pipeline is connected with a gas source, the other end of the gas supply pipeline is connected with the plasma spray gun, and a flow control valve and a mass flow meter are installed at the position, close to the plasma spray gun, of the gas supply pipeline, the stable alloy target spraying gas supply device further comprises a constant-temperature box, the constant-temperature box is arranged on the upstream of the flow control valve, and the gas supply pipeline is provided with a coil pipe section located in the constant-temperature box so that mixed gas entering the plasma spray gun can be kept at the preset temperature. By arranging the constant temperature box, the mixed gas is always kept at the preset temperature, so that the plasma flame temperature is kept unchanged, the proportion of silicon to chromium in the silicon-chromium alloy target material is kept unchanged, and the yield of the silicon-chromium alloy target material is greatly improved.

The application belongs to the technical field of mass spectrometry instruments, and particularly relates to a mass spectrometry ion source device and a mass spectrometer comprising the same. The mass spectrometry ion source device comprises: a sample inlet device, a plasma ion source and a gas curtain, the sample inlet device is communicated with a structure for generating plasma in the interior of the plasma ion source through a first sample inlet channel, the sample inlet device is connected with the gas curtain through a second sample inlet channel, a high-temperature plasma flame outlet is arranged at the tail of the plasma ion source, and the direction in which the high-temperature plasma flame outlet sprays high-temperature plasma flame and the direction in which the gas curtain sprays gas are arranged to intersect each other. The application further provides a mass spectrometer with the above mass spectrometry ion source device. The mass spectrometry ion source device can simultaneously perform elementization high-energy ionization and organic matter ionization on a sample, so as to achieve the purpose of simultaneously detecting inorganic elements and organic elements in the sample by using mass spectrometry, and has a good application prospect.

This invention discloses a main reactor structure with branch pipes for high-temperature graphite purification, relating to the fields of high-temperature metallurgy and graphite purification technology. Specifically, it is a main reactor structure with branch pipes for high-temperature graphite purification, comprising a high-temperature plasma source, a double-layer water-cooled jacketed chamber, connecting pipes with branch pipes, and a multi-layer mesh perforated structure at the branch pipe bends. The high-temperature plasma source provides the heat source. The upper and lower ends of the double-layer water-cooled jacketed chamber are respectively connected to the heat source and the discharge, and its chamber wall is provided with spiral cooling water channels. The connecting pipes with branch pipes are located in the middle, extending into the chamber to form bends, and multi-layer mesh perforated structures are set at the bends, with their openings parallel to the direction of the plasma flame. This structure, by optimizing the branch pipe layout and mesh structure, effectively improves the mixing efficiency of high-temperature gas and graphite raw materials, enhances the impurity removal effect, and utilizes a water-cooling system to control the reaction temperature, thereby improving the graphite purification quality and equipment operational stability.

The utility model provides a plasma flame descaling device which comprises a working table and a plasma flame machine, a stand column is fixedly installed on the working table, a rotating device is connected to the stand column and drives the plasma flame machine to rotate by 90 degrees, a lifting device is arranged on the working table, and the plasma flame machine is connected with the lifting device. The lifting device is used for adjusting the distance between the working table and the plasma flame machine, the plasma flame machine can rotate to cover the table top of the whole working table under the action of the rotating device, plastic products placed on the table top can be effectively subjected to descaling treatment, the descaling treatment is not affected by human factors, and the working efficiency is improved. The distance between the plasma flame machine and the surface of a material can be accurately controlled, the workload of workers is reduced, the descaling efficiency is improved, the descaling quality is guaranteed, the cost is saved, meanwhile, plastic products can be prevented from being damaged, the descaling requirements of the plastic products with different thicknesses are met, the application range is widened, and practicability is high.