371 results about "Plasma torch" patented technology

The invention discloses a control process and equipment for processing waste gas treatment in the generic semiconductor industry, and relates to the technical field of semiconductor, panel, solar energy and LED waste gas treatment. The equipment comprises a gas inlet control unit, a plasma torch, a reaction cavity, a water tank and a washing tower which are sequentially connected, wherein the gas inlet control unit comprises a three-way valve to realize switching of a main machine and a standby machine; the water tank is provided with a heat exchange and monitoring part; the washing tower comprises a washing section, a turbulent flow section and a demisting section. The process comprises the steps of air inlet control, pyrolysis combustion, cooling and pre-dedusting, water washing, washing tower treatment and the like, and is combined with PID control of plasma power and CDA consumption, and logic control of drainage, flushing and the like. The problems of pipeline blockage and corrosion caused by high operation cost, short PM period and poor washing effect in the process of treating high-dust and high-corrosion process waste gas in the prior art are solved, and the method has the advantages of reducing the cost, prolonging the maintenance period, improving the treatment efficiency and the like.

The utility model relates to the technical field of semiconductor tail gas treatment, in particular to a plasma tail gas treatment device which comprises a reaction assembly, a cooling pipe, a washing assembly, a water-gas separation assembly and a gas outlet pipe, the washing assembly comprises a water tank and a washing pipe, and the cooling pipe and the washing pipe are both fixedly installed above the water tank; the reaction assembly comprises a reaction cavity, an air inlet pipe and a plasma torch; an annular air plate for inputting combustion air is connected between the reaction cavity and the cooling pipe; spraying pipes for washing gas are arranged in the water tank and the washing pipe; the water-gas separation assembly comprises a water-gas separation pipe and a water-gas separation mechanism. According to the utility model, the plasma moment and the washing assembly are used for carrying out full treatment and spray hydrolysis on process gas, so that water-soluble substances are discharged as wastewater, and the treated gas reaching the standard is discharged to a common affair central system, so that full treatment of waste gas is completed; and the air supplementing mechanism is arranged for secondary air supplementing, and meanwhile, when the plasma moment loses efficacy, the air flow can be increased to dilute the waste gas.

The invention discloses a numerical simulation method for a direct-current arc plasma torch based on a thermodynamic unbalanced state and a coupling electrode sheath effect, and the method comprises the steps: building a two-dimensional axial symmetry or three-dimensional equivalent geometric model of the plasma torch based on an actual physical structure of the direct-current arc plasma torch; performing mesh generation to obtain a discretization analysis model; establishing thermodynamic parameters and transport coefficients of a plasma working medium; constructing a control equation set of the coupling electrode sheath effect based on the thermodynamic non-equilibrium state; setting boundary conditions of the plasma torch according to actual conditions; in the discretization analysis model, carrying out numerical value initialization on each grid unit; performing steady state and transient state simulation calculation; and performing post-processing on the steady-state and transient simulation results. According to the invention, the actual unbalanced effect of an electrode boundary layer is simulated through a thermodynamic unbalanced state; through the coupling electrode sheath effect, the interaction between the plasma and the electrode is simulated, and the error caused by manually applying boundary conditions is avoided; the requirement of current continuity is met through self-adaptive iterative solution of sheath voltage, so that the numerical simulation precision of the plasma torch is improved.

The invention belongs to but not limited to the technical field of underground coal gasification, and discloses an underground coal gasification method and gas injection equipment. Constructing a directional drill hole and a gasification channel penetrating through the underground coal seam; a gas injection pipe with a plasma torch is put into the gasification channel, a gasification agent is injected, and in-situ gasification of the underground coal seam is implemented; and the generated gas is conveyed to the ground for collection through the drill hole. According to the underground coal gasification method and the gas injection equipment provided by the invention, the gasification agent is activated by the plurality of plasma torches arranged in the directional channel at the tail end of the gas injection pipe and then is directionally jetted to the coal seam, so that the gasification agent is in contact with the coal seam in a short time and is gasified, the directional conveying of the plasma gasification agent is realized, and the effective utilization rate of the plasma gasification agent is improved; meanwhile, a combustion space area of the coal seam after gasification can be expanded in a fan shape in the longitudinal direction with the gasification agent outlets of the plasma torches as the center, the expansion equivalent radius of the combustion space area is relatively large, and a large amount of coal can be gasified through one gasification channel.

The invention relates to the technical field of cutting equipment, and provides heat exchanger tube nest numerical control cutting equipment and a high-precision cutting method.The heat exchanger tube nest numerical control cutting equipment comprises a base, a first supporting plate, a second supporting plate and a third supporting plate are arranged on the base in the length direction of the base, and the first supporting plate is slidably connected to the base; the second supporting plate and the third supporting plate are both fixed to the base. According to the vertical cutting device, a second rotating disc is accurately controlled to rotate through a third driving mechanism, the second rotating disc rotates to drive a stop lever to move in a limiting groove, a support is pushed to rotate with a third hinged shaft as the center, and the spraying direction of a plasma spraying gun is tangent to the tube wall of the tube nest; when plasma is cut, a reflecting surface is formed on the inner wall of the other side, so that plasma hedging is caused, the plasma beam is jetted in the tangential direction through tangent angle cutting, the hedging phenomenon is avoided, the cutting gap is controlled, and the cutting precision is improved compared with a traditional mode.

A plasma torch includes a nozzle with an opening and an electrode disposed interiorly of the nozzle and configured to generate a plasma arc and direct the plasma arc through the opening of the nozzle. The electrode includes an electrode body and an emissive insert disposed in the electrode body. The emissive insert is movable relative to the electrode body.

A plasma torch system includes a regulator configured to direct a first portion of the gas flow from a gas source toward a consumable of a plasma torch, the regulator being configured to regulate a pressure of the first portion of the gas flow directed toward the consumable based on a pressure in a pilot chamber. The plasma torch system also includes a valve fluidly coupled to the pilot chamber and configured to direct a second portion of the gas flow from the gas source toward the pilot chamber. The valve, in the first position, is configured to increase the pressure in the pilot chamber at a first ramp rate, and the valve, in the second position, is configured to decrease the pressure in the pilot chamber at a second ramp rate.

This invention provides a method for generating high-temperature coal gas based on an electric arc plasma torch, comprising the following steps: feeding carbon-containing powder and at least one energy-carrying medium into different inlets of the electric arc plasma torch; the carbon-containing powder being carried circumferentially and uniformly into the arc channel within the electric arc plasma torch by a carrier gas; the at least one energy-carrying medium, after entering the electric arc plasma torch, passing through a fluid passage on the arc channel wall and entering the arc channel; initiating an electric arc in the arc channel to generate plasma; the energy-carrying medium and the carbon-containing powder being heated together by the plasma, and then ejected together from the nozzle of the electric arc plasma torch. This invention utilizes the energy-carrying medium to perform divergent cooling, evaporative cooling, or endothermic chemical reactions near the arc channel wall, directly absorbing the radiation and convection heat transfer to the pipe wall from the plasma, greatly improving the thermal efficiency of the plasma torch, and inhibiting coking of the gasified carbon-containing powder on the arc channel wall of the plasma torch.

The present invention concerns a furnace for melting vitrifiable materials, comprising (i) a melting tank with heating means configured to melt vitrifiable materials; (ii) a fining tank with heating means configured to refine the melt; (iii) a neck separating the melting tank and the fining tank; (iv) inlet means located at the melting tank to charge the vitrifiable materials; (v) outlet means at the fining tank to flow the refined melt to a working zone; wherein the heating means in the fining tank comprises a plurality of thermal plasma torches configured to emit from a working fluid a plasma flame above the melt.

The invention provides a side blowing type plasma reinforced multi-metal composite melt reduction recovery method and a reduction furnace, the reduction furnace comprises a molten pool and a plasma mechanism, a melt converging opening is formed in the upper portion of the molten pool applied to multi-metal composite melt reduction recovery, and a flue, a slag discharging opening and a siphon opening are formed in the side, away from the melt converging opening, of the molten pool; the flue, the slag discharge port and the siphon port are sequentially arranged from top to bottom; the plasma mechanism comprises a plasma torch, the plasma torch is provided with a blowing port, the blowing port extends into the molten pool from the side direction and is located in a reduction reaction area of the molten pool so as to provide lateral airflow for the reduction reaction area in the reduction reaction process, and the included angle alpha between the blowing direction of the blowing port and the horizontal plane is larger than or equal to-30 degrees and smaller than or equal to 30 degrees. The problems that the contact of the reducing agent is limited and the reaction kinetics is blocked due to adhesion of the high-zinc melt are solved from the source, and the reduction effect is optimized.

The invention relates to the technical field of mass spectrometers, in particular to an intelligent function optimization method for an inductively coupled plasma mass spectrometer, which comprises the following steps: S1, multi-parameter real-time monitoring: acquiring plasma torch temperature, ion lens voltage and mass spectrum detector noise parameters in real time through an embedded sensor array; s2, intelligent control adjustment: dynamically adjusting the power of a radio frequency generator and the carrier gas flow by adopting a self-adaptive fuzzy PID controller; s3, stability prediction modeling: establishing a plasma stability prediction model based on a deep belief network DBN, and outputting optimization parameters according to real-time acquired data; s4, virtual verification optimization: simulating the influence of parameter adjustment on mass spectrum resolution through a digital twin system; through multi-sensor monitoring, self-adaptive control and digital twinborn verification, the analysis precision and stability are remarkably improved, the matrix interference problem is effectively solved through the intelligent pretreatment technology, reliable operation of equipment is guaranteed through a three-level emergency mechanism, and manual intervention and maintenance cost are greatly reduced.

The utility model relates to plasma torch technical field, and disclose a kind of plasma torch for coating preparation, including gun rod and fixedly installed in the gun rod side gun mouth, when using the device for spraying, coating can be heated to high temperature and quickly sprayed outwards by gun nozzle, when gun nozzle is sprayed, nitrogen filled in the air storehouse arranged in its inside will be heated expansion and push movable tube due to high temperature when spraying, movable tube slides to be wrapped in the inside of movable tube, movable tube is dark light-transmitting material, harmful light generated by spraying can be blocked by movable tube at this time, the plasma torch for coating preparation can be heated and expanded by nitrogen in air storehouse by high temperature generated when spraying in actual use, gas expansion pushes movable tube outwards and shields gun nozzle, harmful light generated by gun nozzle spraying can be effectively shielded, greatly reduce the harm to staff.

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 utility model provides a plasma sintering ignition furnace and a system thereof. The plasma sintering ignition furnace comprises a door type frame, plasma torches and a refractory material frame, the door type frame comprises side frames located on the two sides and a top frame connected with the top ends of the two side frames, the refractory material frame is erected below the top frame, and the multiple plasma torches are arranged in the length direction of the top frame. The plasma torch penetrates through the top frame and the refractory material frame, and the bottom end of the plasma torch extends out of the lower portion of the refractory material frame to ignite sintered ore. According to the plasma sintering ignition furnace, traditional coal gas is not needed, only clean energy electricity and cooling water are used as energy media, pollution emission caused by the coal gas is avoided, and the structure is simple; in addition, the stable and ideal sinter material surface temperature can be obtained only by adjusting the current through the plasma power supply system, and compared with a combustion system of a coal gas ignition furnace, control is easy, stable and controllable.

The invention relates to a wear part for an arc torch, plasma torch or plasma cutting torch, characterised in that the wear part or at least one part or a region of the wear part consists of an alloy formed from silver and zirconium, silver and hafnium, or silver and zirconium and hafnium.

The present invention belongs to, but is not limited to, the technical field of underground coal gasification, and discloses an underground coal gasification method and gas injection equipment; constructs a directional borehole and a gasification channel that penetrates an underground coal seam; lowers a gas injection pipe carrying a plasma torch into the gasification channel and injects a gasifying agent to implement in-situ gasification of the underground coal seam; and the generated coal gas is transported to the surface through the borehole for collection. The underground coal gasification method and gas injection equipment proposed by the present invention activate the gasifying agent through multiple plasma torches built into the directional channel at the end of the gas injection pipe and then directionally injects it into the coal seam. The gasifying agent contacts and gasifies the coal seam in a relatively short period of time, thereby achieving directional transportation of the plasma gasifying agent and improving the effective utilization rate of the plasma gasifying agent, thereby increasing the effective component content of the coal gas. At the same time, the combustion zone of the coal seam after gasification will expand in a fan-shaped manner longitudinally with the gasifying agent outlet of each plasma torch as the center. The expansion equivalent radius of the combustion zone is relatively large, and a single gasification channel can gasify a large amount of coal.

A plasma torch assembly 70 comprises a plurality of plasma torch apertures. Each of these plasma torch apertures is adapted to receive a plasma torch 71, 72 and 73. The plasma torch assembly 70 also c

An apparatus may include a bracket having a post-tensioned cable tunnel and a pair of tabs configured to receive a post-tensioned cable and to prevent rotation of the bracket relative to the post-tensioned cable. An apparatus may include a plasma torch attachment member configured to releasably engage with the head of a plasma cutting torch of the type having a plasma cutting tip attached thereto, and to rotatably attach to the bracket such that the plasma cutting tip may be moved in an arc relative to the post-tensioned cable.

The present invention relates to a method for preparing silicon monoxide nanopowder, and belongs to the technical field of non-metallic powder material preparation. The present invention uses SiO2 aerogel powder with a three-dimensional continuous structure surface as raw material, adsorbs hydrogen molecules on the surface of the powdered SiO2 aerogel, and axially feeds an argon-excited inductively coupled plasma torch. The hydrogen molecules are excited by the argon plasma torch to form a highly active hydrogen-rich plasma, which undergoes a reduction reaction with the SiO2 aerogel powder having the characteristics of high specific surface area and high porosity. The generated silicon monoxide vapor is quenched by argon downstream of the reaction device to obtain highly dispersible silicon monoxide nanopowder. This method overcomes the defects of the traditional solid-solid reaction method for preparing silicon monoxide, which has a slow reaction rate and low raw material conversion rate, and at the same time solves the safety problems existing in the traditional method of producing silicon monoxide by hydrogen reduction, thereby greatly improving production efficiency and safety.

The invention discloses a Laval atomizing nozzle and a plasma atomizing powder preparation device for preparing TC4 alloy powder, and belongs to the field of TC4 alloy powder preparation. The nozzle comprises a nozzle inlet, a nozzle outlet, a conical outer wall and a convergence-expansion type Laval flow channel, wherein the convergence-expansion type Laval flow channel is arranged between the nozzle inlet and the nozzle outlet; the conical outer wall is arranged on the periphery of the convergence-expansion type Laval flow channel, and connecting and fixing structures are arranged at the two ends of the conical outer wall; the plasma atomization powder making device for preparing the TC4 alloy powder comprises a Laval atomization nozzle, a plasma torch, an atomization cavity and a wire feeding mechanism. On the basis of the nozzle with the convergent-expanded Laval runner, the highest airflow speed can reach 617.7 mm / s under the condition that argon is input under the pressure intensity of 0.5 MPa, TC4 wires can be efficiently crushed and atomized, the production efficiency of TC4 powder is improved, the powder sphericity rate is increased, and the fine powder yield is increased.

The invention relates to a sample analysis system. The sample analysis system is provided with a lens demisting device. The sample analysis system includes a plasma torch device (200) including a body defining a plasma chamber (202) and a plasma torch (201) supported by the body in the plasma chamber (202). The plasma torch (201) is electrically coupled to a power source and is operable to form a plasma from the sample fluid in the plasma chamber (202) when energized. The sample analysis system also includes a spectrometer (300) configured to analyze the plasma to measure an analyte of interest in the sample fluid by light emitted by the plasma. The spectrometer (300) comprises a collector tube (301) in visual communication with the plasma chamber (202), the collector tube (301) comprising a proximal end and a distal end, the distal end being equipped with a lens (302) configured to collect light emitted by the plasma. The light collecting tube (301) is at least partially inserted into the central passage (616) of the gas hood (610) such that the distal end of the light collecting tube (301) with the lens (302) is at least partially enclosed by the gas hood (610). A distal end (612) of the gas hood (610) includes a gas outlet port (619) and a gas inlet port (618) fluidly coupled with a source of pressurized gas, the gas hood configured to discharge a stream of gas across an exposed surface of the lens (302) to at least minimize fogging of the lens (302).

The present invention discloses a waste plasma treatment device, which includes a furnace body, a pool body mechanism and a plasma heating mechanism. The inner lining of the furnace body is provided with a heat-insulating refractory layer, and a feeding port for continuous feeding is opened thereon. The pool body mechanism includes a material pool and a molten liquid pool arranged from top to bottom in the furnace body, and a partition plate that separates the material pool and the molten liquid pool up and down. An electric heating device is arranged in the material pool, and an overflow port is arranged on the material pool. The upper-layer molten liquid in the material pool overflows into the molten liquid pool through a drainage pipeline. The plasma heating mechanism includes multiple groups of primary plasma torches and multiple groups of secondary plasma torches. In the present invention, waste materials enter the furnace body directly through the feeding port without being crushed and fall into the material pool. The multiple groups of primary plasma torches and the electric heating device cooperate with each other to heat and melt the newly entered waste materials, and then the molten liquid is treated twice by the multiple groups of primary plasma torches and the multiple groups of secondary plasma torches, so that the residual organic matter in the molten liquid is completely oxidized and decomposed and removed.

The utility model provides a plasma torch and a plasma furnace for disposing radioactive wastes, and aims to solve the technical problem of radioactive leakage when a cathode is replaced midway. The plasma torch comprises an anode tube which is internally provided with an anode material, one end of the anode tube is a nozzle, the other end of the anode tube is a connecting part, and the connecting part is provided with a working gas channel; one end of the cathode rod is movably arranged in the connecting part, the cathode rod is made of a cathode material, and a gap exists between the end part of the cathode rod and the anode material; the driving end of the driving part is in power connection with the cathode rod, and the driving part is used for driving the cathode rod to move into the anode tube; the cathode of the plasma power supply is electrically connected with the cathode rod, and the anode is electrically connected with the anode material; and the output end of the working gas supply device is communicated with the working gas channel. According to the plasma torch, the cathode rod is made to move in the connecting part through the driving piece, the distance between the cathode rod and the anode material is reduced, and therefore radioactive leakage caused by cathode material replacement is avoided.

A method for processing a substrate includes loading the substrate on a substrate holder coupled to a scanning tool and disposed in a processing chamber, the substrate including an etch mask disposed over an underlying layer. The method further includes orienting, using the scanning tool, the substrate holder relative to a plasma torch at a tilt angle, the plasma torch being disposed in the processing chamber and including a plasma nozzle, the tilt angle being an angle between the plasma torch and a normal direction of the substrate holder. And the method further includes generating, using the plasma torch, a plasma jet over an area of the substrate holder, and scanning, while maintaining a distance between an end of the plasma nozzle and a surface of the substrate, the substrate relative to the plasma jet to form features on the underlying layer at the tilt angle.

The utility model relates to the technical field of tail gas treatment, in particular to a double-cylinder plasma adsorption device which comprises a shell, a gas inlet pipe assembly, a main cavity, a reaction cavity, a dust collection cooling cavity, a first L-shaped gas inlet pipe, a second L-shaped gas inlet pipe, a first water tank, a second water tank, a gas collection cylinder, a first adsorption cylinder and a second adsorption cylinder, the air inlet pipe assembly is connected to the main cavity, the plasma torch device is installed on the main cavity, the ash collecting and cooling cavity is connected with a first L-shaped air inlet pipe and a second L-shaped air inlet pipe, the second L-shaped air inlet pipe is connected with a second water tank through a pipeline, the first water tank and the second water tank are connected with a first adsorption cylinder and a second adsorption cylinder respectively, and the first adsorption cylinder and the second adsorption cylinder are connected with the main cavity. The first adsorption cylinder and the second adsorption cylinder are connected with a gas collection cylinder; and an acid discharge pipe is arranged on the gas collection cylinder. The tail gas treatment device solves the problems that an existing tail gas treatment device adopts a single treatment mode, lacks an effective cooling system and is difficult to achieve deep purification.

The present invention relates to the technical field of metal additive manufacturing, and discloses a method for preparing molybdenum-rhenium alloy powder suitable for 3D printing. The method specifically comprises the following steps: step 1, weighing raw materials ammonium rhenate and molybdenum dioxide to prepare a slurry; step 2, spray drying and granulation to prepare spherical precursor granules; step 3, calcination and hydrogen reduction to prepare molybdenum-rhenium alloy intermediate powder; step 4, plasma spheroidization treatment to prepare spherical molybdenum-rhenium alloy powder. The present invention performs hydrogen reduction on the spray-dried precursor granules and can achieve a sintering effect. The intermediate powder after reduction retains the spherical morphology of the precursor and improves the cohesive strength. At the same time, the interior of the particles maintains a loose and porous structure, and can achieve stable powder feeding and improve heat energy absorption efficiency in a plasma torch environment. In actual production applications, it can effectively reduce energy consumption, improve spheroidization efficiency and sphericity.

The invention discloses a system for hydrogen production and carbon production through methane cracking synergistically enhanced by plasma. The system comprises a gas source, a cracking reaction bin and a plasma torch, a double-layer stainless steel sleeve catalytic carrier is arranged in the cracking reaction bin, the double-layer stainless steel sleeve catalytic carrier comprises an inner-layer sleeve and an outer-layer sleeve, through holes with the aperture of 5-10 microns are distributed in the inner-layer sleeve, and through holes with the aperture of 20-50 microns are distributed in the outer-layer sleeve; the inner wall of the inner-layer sleeve is coated with a catalytic coating; the gas source provides and conveys methane gas into the cracking reaction bin; and the direct-current plasma torch conveys high-temperature plasma into the double-layer stainless steel sleeve catalytic carrier. A double-layer porous stainless steel sleeve is constructed in a plasma reaction cracking bin to serve as a catalytic carrier to load a catalytic coating, and a deep coupling structure of plasma cracking and catalytic cracking is constructed; and efficient conversion of methane and synchronous preparation of a high-added-value carbon material and high-purity hydrogen energy are realized.

1. The name of the design product: anode sheath. 2. The use of the design product: the design product is used for the protection of anode in plasma torch device of coal-fired boiler in thermal power plant, and the protection sheath is made of refractory material. 3. The design points of the design product: the combination of shape and color. 4. The picture or photo that best shows the design points: the 2-piece perspective view 1. 5. The design product contains color.

The application discloses a plasma gas heating furnace, and relates to the technical field of heating furnaces.The heating furnace is of an inner-outer sleeve structure, and comprises a furnace body inner sleeve, which is a plasma gas passage and is provided with a gas outlet; a furnace body outer sleeve, which is a working gas passage and is sleeved on the outer side of the furnace body inner sleeve and is in communication with the furnace body inner sleeve; and an arc plasma torch, which is arranged at the end of the furnace body inner sleeve far from the gas outlet; and an air inlet assembly, which is arranged in communication with the furnace body outer sleeve and is used for feeding working gas into the furnace body outer sleeve. The arc plasma torch is used for spraying high-temperature plasma jet into the furnace body, and the working gas fed from the air inlet assembly is mixed with the high-temperature plasma jet to form target gas, so that high-temperature inert gas heated by electric energy is used to replace high-temperature flue gas generated by combustion of fossil fuel, a heat source is provided for an industrial furnace, and nearly zero carbon dioxide emission is realized in the whole heating process.

The invention discloses a novel construction method and device for a rotary drilling rig. The novel rotary drilling rig utilizes a high-energy pulse power supply to excite a super-energy plasma torch, the plasma torch fuses rock, and the rock is efficiently drilled in cooperation with an alloy drill bit. According to a traditional rotary drilling rig, the gravity of a drilling tool is utilized, the downward probing force of a drilling rod acts on a drill bit, and hard cutting is conducted on rocks. According to the novel plasma drilling tool designed by the invention, hard cutting and electric blasting are fused, so that the drill bit can quickly enter rock, and the novel plasma drilling tool is an efficient and energy-saving rock breaking tool.