342 results about "Heat torch" patented technology

An enclosure constructed around an area at which hot work is to be performed at a facility containing flammable or combustible material. Hot work includes such things as welding, torch cutting, grinding and the like. Facilities include petroleum drilling and production platforms, oil tankers, petroleum and chemical plants, and petroleum tank farms. Gas detection monitoring apparatuses are used with the enclosure which will automatically simultaneously shutdown one or more enclosures.

A method is provided for configuring two thermal processing systems. The method includes providing a first consumable for use in a first thermal processing torch and a second consumable for use in a second thermal processing torch. The first and second consumables have substantially identical physical characteristics. The first and second torches are mounted in a first thermal process system and a second thermal processing system, respectively. The method also includes sensing, by the first thermal processing system, first data stored in a first signal device associated with the first consumable and sensing, by the second thermal processing system, second data stored in a second signal device associated with the second consumable.

The invention provides a method for preparing Ti-6Al-7Nb medical titanium alloy spherical powder. The preparation method comprises the following steps: preparing materials of alloy components according to ASTM F1295 standards and carrying out two times of vacuum melting on a mother alloy ingot; preparing the mother alloy ingot into an alloy electrode bar through forging and machining; carrying out pre-vacuumizing treatment on atomization equipment and introducing mixed inert protective gas; conveying the electrode bar into an atomization chamber through a feeding system and heating the end face of the electrode bar by using a plasma torch; preparing metal liquid drops by using a centrifugal effect of a rotary electrode and instantly condensing the metal liquid drops into spherical metal powder; after cooling the high-nitrogen stainless steel spherical powder, removing non-metal impurities through an electrostatic impurity removing device; and finally, carrying out powder package by adopting multilayered vacuum heat sealing. The method provided by the invention has the characteristics of high production efficiency, strong batch stability, high fine powder yield and the like; and the Ti-6Al-7Nb medical titanium alloy spherical powder with high sphericity degree, good purity, strong mobility and smooth and clean surface can be easily prepared.

The invention discloses a method for recovering CO from a high-pressure acetic acid tail gas produced by carbonylation through a membrane process and a device thereof. The tail gas is treated by three steps, that is, pretreatment, membrane separation and gas compression: the tail gas that passes a gas washing tower, a demister and a combined filter enters a Prisen membrane separator through a heater, the tail gas after the membrane separation enters a compressor, a product gas is recovered and reused, and hydrogen rich gas flows to a torch for burning. In the method, two Prisen membrane systems help control the amount of the feed gas entering a membrane, the product gas and the hydrogen rich gas to reach N2 material balance, ensure the CO recovery rate and achieve the purpose of the long and stable operation of a membrane separation device; and the content of the CO in the final product gas is not less than 91%.

The invention discloses a plasma garbage treatment system and method, comprising: a superheated steam drier to dry garbage; a plasma gasification furnace pyrolyzing the dried garbage under the high temperature of a plasma torch to generate hydrogen, carbon monoxide and carbon dioxide Mixed gas; the high temperature heat exchanger performs heat exchange and cooling of the mixed gas; the oxygen heat exchanger uses the mixed gas after heat exchange and cooling to heat the combustion-supporting oxygen to output flue gas; the quench tower uses lye to cool the oxygen output from the oxygen heat exchanger The flue gas is cooled and deacidified; the first dust collector removes dust from the flue gas treated by the quenching tower; the induced draft fan transmits the flue gas after the first dust collector removes dust; the gas internal combustion engine uses the flue gas transmitted by the induced fan to drive the generator Generate electricity and output flue gas; the waste heat boiler cools the flue gas output by the gas-fired internal combustion engine; the second dust collector removes dust from the flue gas cooled by the waste heat boiler, and sends it to the chimney for emission. By adopting the invention, the waste heat utilization rate and thermal efficiency of waste treatment can be improved.

One or more enclosures constructed about one or more objects at which hot work is to be performed at a facility containing flammable and/or combustible material. Hot work includes such things as welding, torch cutting, grinding and the like that produces heat, spark, slag or flame. The one or more enclosures are capable of being simultaneously and independently controlled and monitored by a single control and monitoring system.

The invention provides a preparation method of high-nitrogen stainless steel spherical powder. The preparation method comprises the following steps: preparing materials according to stainless steel components and carrying out a melting process of a mother alloy ingot; preparing the mother alloy ingot into a common stainless steel electrode bar through forging and machining; carrying out pre-vacuumizing treatment on atomization equipment and introducing high-purity nitrogen gas; conveying the electrode bar into an atomization chamber through a feeding system and heating the end face of the electrode bar by using a plasma torch; ionizing the nitrogen gas in an electric arc region into nitrogen ions, high-energy nitrogen molecules and un-ionized nitrogen neutral atoms so as to improve the nitrogen content of stainless steel; preparing metal liquid drops by using a centrifugal effect of a rotary electrode and instantly condensing the metal liquid drops into spherical metal powder; after cooling the high-nitrogen stainless steel spherical powder, removing non-metal impurities through an electrostatic impurity removing device; and finally, carrying out powder package by adopting multilayered vacuum heat sealing. The preparation method of the high-nitrogen stainless steel spherical powder has the characteristics of high production efficiency, strong batch stability, high fine powder yield and the like; and the stainless steel spherical powder with high nitrogen content, good purity, strong mobility and smooth and clean surface can be easily prepared.

The invention relates to an LPG combusting burner device for flaming and flame cultivation purposes and an improved hand-held torch that may incorporate such burner device. The burner device includes a primary burner (14) having at least one fuel delivery nozzle or jet (80) arranged within an open combustion chamber (71) defined within a burner skirt (70) such as to direct a stream of fuel towards a flame delivery opening of the skirt (70), and a vaporiser (18) located in heat exchanging proximity to the primary burner (14) and having a pressurization chamber with an inlet for liquid LPG fuel and an outlet for gaseous LPG fuel, the inlet being arranged to be in fluid communication with a source of pressurized LPG and the other being in communication with the nozzle of the primary burner. A metering duct (37) is located in close vicinity or within the vaporiser (18) and arranged to discretely limit the amount of liquid fuel entering the vaporisation chamber via its inlet, and a first pressure reduction duct (52) is provided in the flow path of gaseous fuel between the vaporisation chamber outlet and the nozzle of the primary burner (14) the first pressure reduction duct (52) arranged to impart a discrete pressure drop to gaseous fuel flowing therethrough between the vaporisation chamber (50) and the nozzle of the primary burner (14), the discrete pressure drop being such as to generate a low velocity combustion flame in the primary burner (14) during normal burner operation.

The invention relates to a hydrogenation technology and concretely relates to an alkyne-rich C4 selective hydrogenation technology. The technology comprises that an alkyne-containing C4 material from an extracting device or a storage tank enters a rectifying tower, impurities and C4 in the alkyne-containing C4 material are separated, the C4 is collected at the tower top, is condensed through a condenser and is fed into a return tank, the impurities are collected at the tower bottom and are fed into a fuel tank, the C4 is pressurized through a hydrogenation raw material pump, one part of the C4 is used as a return liquid and is returned to the rectifying tower, the other part of the C4 and H2 are mixed and are fed into a hydrogenation reactor, the hydrogenated material is cooled through a cooler and is fed into a gas separation tank, noncondensable gas is fed to a torch, the liquid is divided into three parts through a circulating pump, the first part is returned to a feeding inlet of the rectifying tower, a second part is returned to an inlet of the hydrogenation reactor and the third part as a hydrogenation product is discharged from the device. The technology solves the problems of easy catalyst inactivation and polymerization of dialkene and alkyne in the reaction, improves butadiene and butylene recovery rates of the extracting device and effectively prolongs a service life of the hydrogenation catalyst.

The invention discloses a process and system for treating gasified grey water. According to the process, a power quantity exchange process is provided so as to recover pressure energies contained in high-temperature high-pressure gasified black water, and the pressure energies are converted into mechanical energies so as to carry out external action; after treated grey water is subjected to the combined pressurization of a power quantity exchanger and a centrifugal pump driven by a motor, the grey water is heated by high-pressure flash steam, and then, is conveyed to a gasification section for use; the pressure of the gasified high-pressure black water is reduced to 1.0 MPa after the gasified high-pressure black water passes through the power quantity exchanger, the gasified high-pressure black water is conveyed to be subjected to high-pressure flash treatment, and then, the flash process is not changed; and in order to facilitate the pressure regulation of a high-pressure flash tank and avoid overpressure, a regulation valve is arranged in front of a control valve which leads a high-flash separator to a conversion section, and the high-flash separator is led to a total torch, and the occurrence of environmental incidents, such as torch extinguishment or direct emission and the like, is avoided. According to the process and system for treating the gasified grey water, the process is combined with the system, and the problems of energy source waste, environment pollution, cumbersomeness in operation, and the like, in the prior art can be effectively solved through the improvement on the prior art and the scientific and rational energy utilization.

The invention discloses a method for treating waste by adopting a microwave plasma torch. The method comprises the following steps: pretreatment of waste, namely preparing solid waste, liquid waste and gaseous waste, and crushing the solid waste by virtue of a crushing device; and pyrolysis, namely generating a plasma torch by carrying out ionization on gas by utilizing a microwave plasma generation device, and carrying out the pyrolysis on the pre-treated waste by virtue of the plasma torch, wherein organic matters in the waste are pyrolyzed into micromolecular substances such as C, H2, CO, and CH4, and inorganic matters in the waste are molten at the high temperature to form a matter in a glass state. According to the method, the waste is pyrolyzed by virtue of the plasma torch generated by the microwave plasma generation device, the waste is pyrolyzed into the micromolecular substances, such as carbon oxide, carbon powder, methane, and hydrogen, and the matter in the glass state, no harmful matter is generated in the treatment process, the secondary pollution for the environment is avoided, the treatment procedure is simple, and the efficiency is relatively high.

A plasma melting furnace with a continuous overflow slag discharge function is proposed, the melting furnace comprises a furnace body, a plasma torch heating system and a bath. A material inlet is arranged on the top of the furnace body, a furnace chamber is coaxially produced in the furnace body, the bath includes a bath body, a continuous overflow slag discharge port and an intermittent clean discharge port, the plasma torch heating system comprises a plasma torch generator and a generator protective heat insulating sleeve which tightly sleeves the outside of the plasma torch generator, andthe plasma torch generator is uniformly arranged along the circumferential direction of the furnace body. At least one plasma torch generator is arranged at a place above the continuous overflow slagdischarge port or at the two sides of the continuous overflow slag discharge port. The melting furnace realizes efficient and rapid melting and continuous overflow slag discharge of a low-calorific-value hazardous waste plasma melting furnace, and finally achieves the purposes of high processing capacity, high thermal efficiency, low labor consumption, high automation degree, low operation risk and low equipment investment of the low-calorific-value hazardous waste plasma melting equipment.

A process for synthesizing metal nanopowders by introducing metal carbonyl into an induction plasma torch. By taking advantage of the much lower dissolution temperature of carbonyl as opposed to the high melting temperature of conventional metal powder feeds less torch power is required. Moreover, in contrast to current powder production techniques utilizing electrode based plasma torches, the induction plasma torch does not introduce contaminants into the nanopowder.

The invention discloses a method for stripping gas washing water, which solves the problems caused by the existing method for stripping the gas washing water, such that equipment and pipes are easy to corrode, and the production and investment of the equipment are high. The technical scheme comprises the following steps of: neutralizing the gas washing water, and then putting in a stripping tower to contact the low-pressure steal counter flow; stripping the gases, such as H2S, CO2 and NH3, dissolved in the washing and discharging water to gas-phases; cooling the gases coming from the top of the stripping tower to 80-100 DEG C via a stripping gas cooler; separating the gas from liquid via an acidic gas separating tank; returning the separated liquid to the stripping tower via a return pump of the stripping tower; conveying the acidic gas to a torch; cooling the wastewater produced by stripping to 40-50 DEG C via a wastewater cooler; and conveying the wastewater to a wastewater processing device after a drainage pump is pressurized. The method for stripping the gas washing water disclosed by the invention has simple processes, can effectively resolve the corrosion of the stripping tower, relative equipment and pipes, can prolong the service life of the equipment, and can reduce the investment cost of the equipment.

The invention provides a cryogenic separation recycling system for exhausted polyolefin flare gas. The system comprises a dryer (110) communicated to a plate-fin heat exchanger (120), a gas-liquid separator (130), a cryopump (140), a nitrogen compressor (150) and a turbo expander (160); the exhausted flare gas is processed through the dryer (110), the dried exhausted flare gas is delivered to the plate-fin heat exchanger (120) to be cooled and then delivered to the gas-liquid separator (130) for gas-liquid separation, a gas phase is reheated by the plate-fin heat exchanger (120) and then delivered to a postprocessing unit, and a liquid phase is pressurized by the cryopump (140) and then reheated by plate-fin heat exchanger (120) to return to a reaction system; low-pressure nitrogen is pressurized by the nitrogen compressor (150) and then delivered to the plate-fin heat exchanger (120) to be precooled, the precooled nitrogen is expanded and cooled by the turbo expander (160) and then returns to the plate-fin heat exchanger (120) to be reheated to the normal temperature, and the reheated nitrogen is delivered to an inlet of the nitrogen compressor (150) to form circulating refrigerating. Hydrocarbon substances in the exhausted flare gas can be maximumly recycled, so that the downstream can conveniently utilize the exhausted flare gas.

A welding gun assembly for directing a welding wire toward a workpiece, having a torch at a forward portion of the gun; a welding wire feeder at a rearward portion of the gun; a first housing positioned adjacent the torch; and a second housing positioned adjacent the wire feeder. The second housing has a hexagonally shaped opening for receiving a conduit having a hexagonal portion. The conduit is positioned in one of six positions in the housing. The first housing has a hexagonal shape for being mounted to a hexagonal opening of a remote arm. A block having a hexagonal shape is received within a hexagonal opening of the housing. A hexagonal conduit is received within the block and secured in one of six positions.

The invention relates to a BOG comprehensive utilization system for an LNG receiving station. The BOG comprehensive utilization system for the LNG receiving station comprises an LNG transport ship, an LNG storage tank, an immersed pump, a high-pressure pump, a vaporizer, a pressure regulator A, a metering device A, a buffering tank, a BOG compressor, a recondenser, a sea water pump, a heat exchanger A, a heat exchanger B, a power generation device, a lithium bromide unit, a waste heat boiler, a torch and a plurality of valves. The BOG comprehensive utilization system for the LNG receiving station has the following beneficial effects: a gas internal-combustion engine is used for combusting BOG for power generation, and BOG originally discharged through combustion is reused, so that the technical effects of energy conservation and emission reduction are realized; a heat exchange pipeline is arranged, and a free cold source is provided for an air conditioner through seawater; while the need of a vaporization process is met, gradient utilization of energy is realized through cold energy recovery, and energy conservation and emission reduction are achieved; and different energy consumption requirements of the LNG receiving station can be met, waste can be turned into wealth, energy loss and waste are reduced, the energy utilization rate is increased, the gradient utilization of energy is realized, and a good good economic value is achieved.

The invention relates to a method for recovering and utilizing hydrocarbon fuel gas rich in alkyne by catalytic hydrogenation and mainly solves the problem that alkyne-enriched hydrocarbon fuel gas in a butadiene device is sent to a torch to be burned and fails to be effectively utilized. Gaseous hydrocarbon fuel gas is absorbed by solvent into liquid, absorbed liquid is mixed with hydrogen to enter a catalytic selective hydrogenation reactor, and alkyne selective hydrogenation is allowed under the catalytic action of nickel, copper, silver and palladium, catalytic hydrogenation product cools and enters a stripper, and alkyne-enriched mixture is obtained from the top of the stripper and is sent into the butadiene device to obtain the high-purity butadiene product. Bottom residue is mainly solvent and is sent to an absorption tower for recovery. The problem that the fuel gas in the butadiene device fails to be effectively utilized is solved well by the application of the technical scheme. The recovery method is widely applicable to industrial productions to achieve hydrocarbon fuel gas recovery and butadiene yield increasing.

The invention relates to a method and a device for effectively removing acid in tail gas during the process of preparation of alcohol sec-butyl acetate by utilization of liquefied petroleum gas to be mixed with n-butene in c_4 olefin and react with an acetic acid. The method takes an alkali solution as a solvent to remove the acetic acid in released tail gas in an extracting tower during the process of production of the alcohol sec-butyl acetate by adoption of the n-butene in the liquefied petroleum gas as a raw material; the liquefied petroleum gas after removal of the acetic acid is sent into a gas-liquid settling tank again, and enters into a torch pipe network system after separation of an alkali solution; and a tail gas system of the whole device is isolated from an external device through a liquid seal which is arranged on the gas-liquid settling tank. The method and the device guarantee that the tail gas after deacidification can safely enter into a gas holder and a torch system which do not resist acetic acid corrosion, save the trouble of needing to match a newly-built torch system which resists acetic acid corrosion and the gross investment of the newly-built device.

The present invention relates to a cyclonic plasma pyrolysis/vitrification system pyrolyzing and vitrifying waste materials into exhaust gas and slag using a plasma torch. The plasma torch circulates the exhaust gas in a main reactor with a maximum circulating power by strong plasma jet, and makes flyashes contained in the circulating exhaust gas to be melted after being adsorbed at the inner walls or in the melted materials of waste at the bottom of the main reactor by a centrifugal force. Accordingly, discharge of flyashes containing toxic materials to the outside is prevented, and pyrolysis and gasification of the waste materials are induced by circulating the exhaust gas rapidly.

The invention relates to a multifunctional rescue training device for a leakage accident of a liquefied petroleum gas tank car. The device comprises a liquefied petroleum gas tank car body and auxiliary equipment of a car pushing structure; a tank body is composed of a normal-temperature pressurized tank body and a water tank; the outer wall of the normal-temperature pressurized tank body is provided with a liquidometer flange leakage point, a liquid-phase ball valve leakage point, a tank body sidewall weld leakage point, a liquidometer leakage point, a safety valve leakage point, a gas-phase ball valve leakage point and a tank top weld leakage point; an inner cavity includes a water supply system and a gas supply system, and the water supply system and the gas supply system are communicated with the leakage points; and the auxiliary equipment includes a compressed air bottle, an explosion suppression type three-phase asynchronous motor, a liquefied petroleum gas pump, a combustion torch and an electronic ignition device. On the basis that the original shape and structure of the liquefied petroleum gas tank car are maintained, overall layout and modularized design are carried out, the simulation degree is very high, leakage portions are arranged in a typical way, and a leakage pressure can be adjusted accurately and controlled stably; and the multifunctional rescue training device is highly integrated, diversified in training, capable of remote and automatic control and safe and reliable in training.

The invention discloses a shallow carbon monoxide conversion method and a shallow carbon monoxide conversion system. The method comprises the following steps: introducing water gas into a front waste heat boiler, and absorbing sensible heat and latent heat, so that the water-gas ratio in the water gas is reduced; separating the condensate water, adding processing condensate water into a gasification island; heating the water gas; carrying out a detoxification reaction on the water gas; allowing the detoxified water gas to enter a water heat transfer shift converter, and recycling the reaction heat by adopting water; recycling the sensible heat and latent heat in the shifted gas by adopting deoxygenated water; continuously recycling the sensible heat and latent heat in the shifted gas in the previous step by virtue of desalted water, and separating the processing condensate water; washing ammonia in the converter by virtue of the desalted water; flashing gas in the processing condensate water by adopting low-pressure steam; performing torch burning on tail gas; and introducing the processing condensate water into the gasification island. The outlet temperature of the shifted gas is less than or equal to 40 DEG C under the condition that circulating cooling water is not used; and moreover, the practicality is high, all raw material gas conversion processes can be met, and the method can be used for new projects and also can be used for oil unit transformation.