20 results about "Powder burn" patented technology

The invention discloses a multi-flame powder combustion eruption device. The multi-flame powder combustion eruption device is characterized in that a quantitative blanking powder bin is communicated with an eruption pipe through a pneumatic pipeline; the spraying pipe is provided with a spraying guide cavity, the plasma generator discharges gas in the spraying guide cavity to form a plasma arc area, and the plasma arc area and the cavity wall of the spraying guide cavity have a distance which enables the plasma arc area and the cavity wall of the spraying guide cavity not to make contact. The plasma arc region is a free arc region or a compressed arc region; powder in the powder bin is quantitatively discharged into the pneumatic pipeline, the pneumatic pipeline conveys the powder into the eruption guide cavity, and airflow drives the powder to pass through the plasma arc area and then is sprayed out of an eruption opening of the eruption guide cavity. The plasma generator controls the working temperature of the plasma arc area according to the material and particle size of the powder. And the firework effect of various flame colors can be displayed. The energy loss is effectively reduced, the heating speed is high, the temperature uniformity is good, and the energy consumption is low; the device has the advantages of simple structure, safety and reliability.

The combustible powder cold light firework effect generating device comprises a powder storage device and a heating body, and a heating cavity of the heating body is provided with a bent or spiral powder channel; the combustible powder in the powder storage device passes through the powder channel based on wind power to be heated and ignited. When combustible powder flows in a bent or spiral powder channel based on wind power, powder particle flow needs to be subjected to reversing movement, so that the friction coefficient and normal pressure between powder particles and the channel wall are greatly increased, and local high-temperature friction heat is generated. Therefore, the heating body only needs to provide a relatively low heating temperature, the combustible particles can be reliably ignited to be sprayed out under the cooperation of local high-temperature friction heat, and the cold light firework effect formed by the star body effect of combustible powder combustion is achieved.

The utility model discloses an igniter with a cold light firework ejection effect, an igniter body comprises a combustion chamber, a mixing chamber, a fuel assembly and an ignition device, fuel in the fuel assembly is ejected into the mixing chamber to be mixed with air to form mixed airflow, and the mixed airflow is ignited by the ignition device; the device further comprises a powder storage device for storing combustible powder, the powder storage device is arranged close to the area where the mixed airflow passes through, and a discharging port of the powder storage device communicates with the mixing chamber and / or the combustion chamber so that the combustible powder and the mixed airflow can be mixed and combusted. When fuel of the igniter body is sprayed out at a high speed, surrounding air and powder are sucked in through suction force of airflow, the combustible powder is fully mixed with the air and fuel gas and is combusted and sprayed out, the combination of the star effect of combustion of the combustible powder and flames of the igniter can be presented, and the firework effect presented by cold light fireworks can be completely simulated. Effective function fusion of the cold light firework effect and the portable igniter is ingeniously achieved.

Through holes are formed in the four sides of the bottom of a shell, connecting ropes are movably arranged in the four through holes, elliptical blocks are fixedly arranged at one ends of the four connecting ropes, the elliptical blocks are located on the inner wall of the bottom of the shell, whistles are fixedly arranged at the other ends of the four connecting ropes, and the whistles are located on the inner wall of the bottom of the shell. The whistle is positioned outside the bottom of the shell; the lead is ignited to ignite propellant powder, the propellant powder burns to generate airflow to push the shell to lift off, when the shell lifts off, the four whistles can be conveniently driven to lift off, when the four whistles lift off, long-term sound can be generated through the airflow, and therefore birds can be conveniently and preliminarily dispelled; according to the bird repelling bomb, the bird repelling effect is good and thorough through the whistle, gunpowder explosion and light generated by the flashing bomb ignited by gunpowder explosion, and then the bird repelling effect of the bird repelling bomb is improved.

The invention discloses steam electrolysis and steam gas method hydrogen making and iron making integrated equipment and a control method. And putting on an electric circulating fluidized bed furnace net funnel. The electric worm drives the electric circulating fluidized bed furnace net funnel to rotate through the worm gear, air blown out by the electric air blower supports burning of ignited coal powder on the electric circulating fluidized bed furnace net funnel, and smoke generated by burning penetrates through the small cast iron chimney and the large chimney in the reaction kettle and then enters a heating pipe of the waste heat power generation device to generate power and then desulfurize. The electric screw extrusion coal water slurry conveyor conveys the coal water slurry into the reaction kettle, and the coal water slurry is heated to 700 DEG C water vapor and the 700 DEG C red hot coal powder are subjected to endothermic chemical reaction to generate carbon monoxide and hydrogen. DC voltage is introduced into an artificial graphite anode tube, cast iron and a foam iron porcelain tube cathode tube of a central large chimney to generate oxygen and hydrogen, and the oxygen reacts with 700 DEG C coal powder. And the 700 DEG C carbon monoxide chemically reacts with the iron ore powder leaked into the foam iron and the cast iron pipe to generate iron.

The invention belongs to the technical field of boilers, and relates to a staged-arrangement and staged-amplification tiny-oil ignition combustion device which comprises a primary air pipe, a staged convenient combustion device and a smoke backflow device, combustible powder is arranged in the primary air pipe, and the staged convenient combustion device is arranged in the primary air pipe and comprises a combustible powder concentration assembly and a combustible powder combustion assembly. The combustible powder concentration assembly and the combustible powder combustion assembly are sequentially arranged in the direction from the pipe head of the primary air pipe to the pipe tail of the primary air pipe, and the smoke backflow device is arranged in the pipe tail direction of the primary air pipe and used for reducing the air speed of airflow entering the primary air pipe and enabling the airflow entering the primary air pipe to flow back into the primary air pipe.

The application discloses a boiler using flue gas and oxygen premixed combustion-supporting to reduce nitrogen oxides, and belongs to the technical field of combustion, which comprises a boiler body, a combustion-supporting pipe and a flue gas pipe; the flue gas pipe is provided with a stirring device and a suppressing device; the stirring device comprises a horizontal plate, a first motor, a gas conveying pipe and a stirring cylinder; the application is provided with the stirring device, so that the sliding rod rotationally connected with the connecting rod repeatedly moves in the through hole of the stirring cylinder, the gap changeable air flow is repeatedly pushed by the push plate, the push plate is just located at the outer end of the stirring cylinder, the air flow generated by the push plate can interfere with the rotating air flow, so that the coal powder rotating with the rotating air flow is separated from the control of the rotating air flow, the separation efficiency of the coal powder is effectively improved, the coal powder burns together with most of the coal powder under the action of the suppressing device, and the generation of nitrogen oxides can be suppressed.

Disclosed in the present invention is a firework device based on powder combustion and ejection. The firework device comprises an injector connected to a pressurized fuel accommodating cavity, wherein the injector is connected to a mixing tube, the mixing tube is provided with inlets for air and powder, the mixing tube above the inlets is connected to an ejection port, an igniter is provided between the inlets and the ejection port, a nozzle of the injector feeds a fuel injection jet into the mixing tube, the fuel injection jet sucks the air and powder into the mixing tube to form a mixed airflow, and the mixed airflow is ignited by the igniter and then ejected through the ejection port. Firework ejection can be achieved without the need for preheating powder, thereby effectively simplifying the apparatus structure; in addition, a combination of sparks and flames can be presented, and the spark and flame effect presented by fireworks is completely simulated.

This invention discloses a hybrid power engine driven by the combustion of hydrogen, fuel oil, and coal powder. Hydrogen, fuel oil, and coal powder are ignited by a laser in a horn-tube combustion furnace, resulting in incomplete combustion and the production of black smoke. Alternating current is applied to an eddy current heating coil, generating eddy currents that heat several foamed tungsten alloy cathode tubes, several tungsten alloy anode tubes wrapped in artificial graphite, and a turbine shaft. Direct current is applied to the foamed tungsten alloy cathode tubes and the artificial graphite-wrapped tungsten alloy anode tubes, electrolyzing water vapor. Hydrogen is produced on the foamed tungsten alloy cathode tubes, and oxygen is produced on the artificial graphite-wrapped tungsten alloy anode tubes. The oxygen reacts with carbon particles in the black smoke to produce carbon dioxide, while at high temperature, the water vapor reacts with the carbon particles to produce carbon monoxide and hydrogen. The flue gas passes through a turbine thermomagnetic series motor and a thermomagnetic generator, driving a pneumatic rotary piston motor. Alternatively, the flue gas passes through a turbine and is driven by the thermomagnetic series motor.

The invention discloses a handheld firework setting-off device based on powder combustion eruption. The handheld firework setting-off device comprises a handheld part, a pressure fuel containing cavity is connected with an ejector through an air outlet valve, a mixing pipe connected with the ejector is provided with an air inlet, and the handheld firework setting-off device is further provided with a powder bin for providing powder into the mixing pipe; the mixing pipe is provided with a combustion chamber, a turbulator is further arranged in the combustion chamber, and the sectional area of the combustion chamber is larger than that of an inner cavity of the mixing pipe. The combustion chamber is connected with the jet orifice and is internally provided with an igniter; a nozzle of the ejector feeds fuel ejection flow into the mixing pipe, the fuel ejection flow sucks air and powder into the mixing pipe to form mixed airflow, and the mixed airflow is ejected out of the ejection opening after being ignited by the igniter in the combustion chamber. And the firework effect presented by fireworks is completely simulated. The equipment structure is effectively simplified, and a small handheld device can be manufactured easily.

A powder combustion test platform with safety guarantee comprises a powder storage tank, the front portion of the powder storage tank is communicated with a nitrogen gas source through a piston pressure reducing valve, and a fluidization area of the powder storage tank is communicated with the nitrogen gas source through a fluidization pressure reducing valve; the tail end of the fluidization area is connected with a detachable combustion chamber through a throttling hole; a cyclone, a plasma igniter and an atomizer are installed in the combustion chamber, pressure sensors are arranged at a piston pressure reducing valve of the powder storage tank, the fluidization area, the near end of the cyclone in the combustion chamber and the position, close to a pressure release valve, of the rear end of the combustion chamber, and it is guaranteed that the pressure in an experiment container meets the experiment requirement through multi-stage pressure monitoring in cooperation with the rear-end pressure release valve; and by means of the detachable combustion chamber, internal sediments can be cleaned conveniently, and repeatability is good.

The utility model relates to the technical field of pulverized coal fired boiler feeding, and discloses a small pulverized coal fired boiler unit which comprises a feeding box, a storage box is fixedly installed on the right side of the top of the feeding box, a pulverized coal recycling box is fixedly installed at the right end of the feeding box, and a feeding mechanism is arranged in the feeding box. A discharging opening is formed in the connecting position of the storage box and the feeding box, a material flattening plate is fixedly installed below the left side of the discharging opening, and the right end of the feeding box communicates with the bottom of the left side of the pulverized coal recycling box. By arranging the feeding box, the material receiving plate, the feeding mechanism, the first conveying crawler belt, the material carrying box, the pulverized coal recycling box, a second driving roller, a second conveying crawler belt, a second motor, a recycling plate and the like, feeding is uniform, the problem that the normal work of the device is affected due to accumulation of pulverized coal in the feeding assembly can be avoided, waste of the pulverized coal can be avoided, and the service life of the device is prolonged. The device has the capability of automatically recovering the pulverized coal, and the pulverized coal can be placed into the storage box again.

The present invention relates to a spiral feeding mechanism for a spraying machine, comprising a conveying screw and a conveying pipe, wherein the conveying screw is rotatably arranged in the conveying pipe to convey combustible powder from one end of the conveying pipe to the other end of the conveying pipe, and one or more ventilation grooves are provided on the upper portion of the conveying pipe for air to enter so that the combustible powder burns in the air. During the operation of the spraying machine, although the combustible powder will adhere to the groove walls of the ventilation grooves, since the ventilation grooves have a long longitudinal depth and the conveying screw of the spiral feeding mechanism continuously moves, the combustible powder overflowing from the conveying pipe of the spiral feeding mechanism will scrape off the combustible powder adhering to the groove walls of the ventilation grooves during directional movement and be brought into the conveying pipe of the spiral feeding mechanism again. Compared with small circular holes, siltation is less likely to occur, thereby eliminating the problem that the ventilation holes will be completely blocked, causing abnormal operation of the spraying machine.

The utility model discloses a combustible powder cold light firework effect generating device which comprises a powder storage device and further comprises a heating body, a heating cavity of the heating body is provided with a powder channel, and the powder channel is provided with a wind power assembly for supplying air into the powder channel. The powder channel is provided with a high-temperature friction heat generating mechanism for enabling the combustible powder to collide with the inner wall of the powder channel; the combustible powder in the powder storage device passes through the powder channel based on wind power to be heated and ignited. When combustible powder flows in a powder channel provided with a high-temperature friction heat generating mechanism based on wind power, powder particle flow performs reversing motion, so that the friction coefficient and normal pressure between powder particles and the wall of the channel are greatly increased, and local high-temperature friction heat is generated. Therefore, the heating body only needs to provide a relatively low heating temperature, the combustible particles can be reliably ignited to be sprayed out under the cooperation of local high-temperature friction heat, and the cold light firework effect formed by the star body effect of combustible powder combustion is achieved.

The utility model relates to the technical field of boilers, in particular to a sanding powder burning organic heat carrier furnace which comprises an upper furnace body and a lower furnace body, a plurality of heat exchange tubes are arranged in the upper furnace body, a burning chamber is arranged in the lower furnace body, a fire grate is installed in the burning chamber, a plurality of smoke deflecting walls are installed at one end in the upper furnace body, and the smoke deflecting walls are vertically arranged. A snakelike smoke channel is formed in the upper furnace body, and a foundation is installed at the bottom of the lower furnace body. According to the sanding powder burning organic heat carrier furnace, the heat exchange pipes are distributed in the upper furnace body in the snakelike mode, the heat exchange area can be greatly increased, the heat exchange effect is improved, and therefore heat loss is reduced, and the operation efficiency of the sanding powder burning organic heat carrier furnace is improved. And secondly, the smoke deflecting wall is vertically arranged, a snakelike smoke channel can be formed in the upper furnace body, smoke can make full contact with the heat exchange pipes, and the heat exchange effect is enhanced.

The group of inventions relates to fire-fighting technology, and more particularly to a method for fluidizing a fire-extinguishing powder in a powder fire-extinguishing module and to a powder fire-extinguishing module. The method for fluidizing a fire-extinguishing powder includes pressurizing a module to a working pressure by means of combustion products formed during the combustion of a composite gas generator charge, then releasing the pressure in a pulsed manner, wherein a first stage of pressurization to a pressure equal to 0.1-0.5 of a working pressure is brought about by combustion products formed during the combustion of charges that burn up within a time period T1, and a second stage of pressurization is brought about by combustion products formed during the combustion of charges that burn up within a time period T2, where T1 is 3-4 times less than T2. The inventions can be used for protecting production, warehouse and domestic premises, automobile engine compartments and luggage compartments, heavy-duty, mining and agricultural machinery, as well as road vehicles and trailers, where a fire-extinguishing module may be subject to heavy working conditions (shaking and / or vibration). The technical result is that of allowing more efficient fire extinction as a result of the uniform and complete fluidization of the fire-extinguishing powder, even when compacted.

The invention discloses atmosphere-controllable top-mounted online powder supply powder bed additive manufacturing equipment. The equipment is free of a powder cylinder, comprises a powder melting or bonding working head, an x-y scanning system, a working box, a forming cylinder, a powder laying mechanism, a platform and a control system, and also adopts a top-mounted online powder recycling and feeding system to recycle and process overflowing powder on line and feed powder required by each layer to a powder bed on line in real time; smoke dust in a working cavity is removed by adopting a gas circulating filtration system, and the atmosphere in the cavity is purified; a working cavity is sealed, and a gas detection and replacement system is adopted for online monitoring and real-time adjustment of gas components and pressure in the working cavity; an atmosphere temperature measurement and control system is adopted to monitor the atmosphere temperature in the working cavity on line, water cooling is conducted timely, and the atmosphere temperature is adjusted. The device has the beneficial effects that the powder utilization rate is increased, the stability of the additive manufacturing process is improved, process interruption is avoided, the forming quality is ensured, powder combustion and explosion are prevented, the machine structure is compact, and parts are precisely matched.

The firework device comprises an ejector connected with a pressure fuel containing cavity, the ejector is connected with a mixing pipe, the mixing pipe is provided with an air and powder inlet, the portion, above the inlet, of the mixing pipe is connected with an injection opening, and an igniter is arranged between the inlet and the injection opening. A nozzle of the ejector feeds fuel ejection flow into the mixing pipe, the fuel ejection flow sucks air and powder into the mixing pipe to form mixed airflow, and the mixed airflow is ejected out from the ejection opening after being ignited by the igniter. Firework eruption can be achieved without preheating powder, and the equipment structure is effectively simplified; meanwhile, the combination of sparks and flames can be presented, and the firework effect presented by fireworks is completely simulated.

The utility model relates to the technical field of gasification furnaces, in particular to a gasification furnace pulverized coal distributor which comprises a conical cover, a cylinder is arranged on the conical cover in a communicated mode, a distribution cone is fixedly connected to the bottom wall of the cylinder, a plurality of outlets are formed in the circumference of the inner wall of the cylinder at equal intervals, and the outlets are all communicated with pulverized coal outlet pipes. The plurality of powder outlet pipes are fixedly connected to the cylinder, the plurality of powder outlet pipes are of arc-shaped structures, and an air supply mechanism is arranged on the cylinder. Air can be mixed into pulverized coal, it is guaranteed that the pulverized coal and oxygen can be fully mixed at the top of the furnace, oxygen-enriched gasification reaction can be better carried out, and sufficient combustion of the pulverized coal is facilitated.

Disclosed in the present invention is a firework device based on powder combustion and ejection. The firework device comprises an injector connected to a pressurized fuel accommodating cavity, wherein the injector is connected to a mixing tube, the mixing tube is provided with inlets for air and powder, the mixing tube above the inlets is connected to an ejection port, an igniter is provided between the inlets and the ejection port, a nozzle of the injector feeds a fuel injection jet into the mixing tube, the fuel injection jet sucks the air and powder into the mixing tube to form a mixed airflow, and the mixed airflow is ignited by the igniter and then ejected through the ejection port. Firework ejection can be achieved without the need for preheating powder, thereby effectively simplifying the apparatus structure; in addition, a combination of sparks and flames can be presented, and the spark and flame effect presented by fireworks is completely simulated.