10 results about "Powder burn" patented technology

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 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.

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 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 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.