74results about How to "Facilitate the combustion reaction" patented technology

The invention discloses a high-wind-temperature rotational flow injection disturbance melting reduction and prereduction combination device and a method, which belong to the technical field of melting reduction. The device comprises a raw material system, a furnace top material charging and distributing system, a melting reduction furnace, a furnace top high-temperature gas system, a prereduction furnace, a semicoke gas recycling system, a coal dust preparing and spraying system, a molten iron desulfurizing agent preparing and jetting device, an oxygen and nitrogen supplying system, a residual iron treating system, a high-wind-temperature hot blast furnace, a melting reduction furnace blower, a furnace top gas dedusting and recycling system and a gas cogeneration device. The method comprises the following steps of: introducing high-temperature gas which is generated in a high-wind-temperature rotational flow injection disturbance melting reduction furnace into the prereduction furnace; directly reducing an iron-containing raw material in a solid phase state into a prereduction furnace material with a certain metallization rate; cooling, and then adding the cooled material and semicoke which serve as the furnace material and a fuel respectively into the melting reduction furnace; and finally producing molten iron by reduction. The device and the method have the advantages of high production efficiency and low energy consumption, are easy to operate and make industrialization easily realized.

A pressurized transport oxy-combustor with different configurations is disclosed. Substantially pure oxygen is fed to the transport oxy-combustor under pressure to combust fossil fuels, generating steam for power generation. The end product is the flue gas containing substantially pure CO₂ after moisture condensation. The low excess oxygen necessary to achieve complete combustion in the combustor is scavenged by adding another fuel so that substantially all oxygen fed to the combustor is completely consumed. The capability to operate the transport oxy-combustor as a circulating fluidized bed combustor at very high solids circulation rates makes it unnecessary to use recycled CO₂ or flue gas as a means to moderate and control the combustion temperature. The temperature in the combustor is effectively controlled by relatively cooler circulating solids that enter the combustion zone. A small amount of CO₂ is recycled for aeration and to convey solids fuel to the combustor.

The invention provides a high-efficiency porous medium burner used in a micro thermo photovoltaic system, relating to the technical field of combined combustion of a two-phrase gas. SiC ceramic spherules with diameter of 0.3mm to 0.35mm are filled in a shell of the burner in the form of oblique parallelepiped and then sintered with the shell to form a porous medium structure with porosity epsilon equal to 26 percent to 27 percent and a tail gas discharging channel is arranged on the external wall of the burner. The shell of the burner is processed first and then a bottom cover (3) of the burner is processed and sintered with the shell, and finally, in the interior of which the screened SiC ceramic spherules with diameter of 0.34mm are filled, after sintering, the porous medium structure is formed and the tail gas discharging channel is arranged in the interior of the shell (2) of the burner. The porous medium burner reduces the heat loss brought by increase of surface to volume ratio due to microscale, greatly improves the temperature distribution on the external wall of the burner, promotes combustion efficiency and combustion stability, lowers gas discharging temperature and heightens the temperature of the external wall, thus greatly advancing the efficiency of the whole micro thermo photovoltaic system.

The invention discloses a pre-combustion type plasma igniter and an ignition method. The pre-combustion type plasma igniter comprises a shell, an oil conveying pipe, a hydrocyclone, a spark plug and agas channel base. A jetting opening is formed in the upper end of the shell. The hydrocyclone is arranged in the shell and connected with the shell. The hydrocyclone divides an inner cavity of the shell into a pre-combustion chamber and a rectification chamber. The spark plug is arranged on the inner cavity of the shell, penetrates the hydrocyclone and is connected with the hydrocyclone, and thehigh-voltage electrode of the spark plug is located in the pre-combustion chamber. An oil conveying cavity is formed in the shell wall of the portion, corresponding to the pre-combustion chamber, of the shell. The oil conveying pipe communicates with the oil conveying cavity. An atomizing hole is formed in the position, corresponding to the pre-combustion chamber, of the inner wall of the shell and communicates with the oil conveying cavity. The atomizing hole is used for atomizing fuel and then spraying the fuel to the pre-combustion chamber. The gas channel base is arranged at the lower endof the shell, connected with the shell, and used for providing combustion-supporting gas for the rectification chamber. A high-pressure lead of the spark plug penetrates the gas channel base and extends out of the shell. The igniter can ignite mainstream fuel oil in the pre-combustion chamber of an aircraft engine, and the reignition height of the aircraft engine is increased.

The invention provides combustible glue used for destroying unexploded ordnance and a preparation method and application thereof. The combustible glue is prepared through the following steps that Al powder and Fe3O4 powder are evenly mixed to obtain Al/ Fe3O4 mixed powder; lac is dissolved in absolute ethyl alcohol to obtain a lac absolute ethyl alcohol solution with the mass concentration being 5%-6%; the Al/ Fe3O4 mixed powder is added into the lac absolute ethyl alcohol solution, and the Al/ Fe3O4 mixed powder and the absolute ethyl alcohol solution are stirred to be evenly mixed; glass fiber powder is added and stirred to be evenly mixed; and expandable graphite is added and stirred to be evenly mixed to obtain the combustible glue. The mass ratio of the Al powder to the Fe3O4 powder is 7-8 to 15. The massic volume ratio of the Al/ Fe3O4 mixed powder to the lac absolute ethyl alcohol solution is 1g to 2-3 mL. The adding amount of the glass fiber powder is 1%-3% of the Al/ Fe3O4 mixed powder by mass. The adding amount of the expandable graphite is 1%-3% of the Al/ Fe3O4 mixed powder by mass. The combustible glue is low in combustion speed, large in combustion heat output and long in combustion duration, and can heat explosives in the unexploded ordnance once being ignited, and it can be ensured that the explosives in the unexploded ordnance are reliably detonated.

The invention relates to an energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln with the size of phi 2000*18 meters. The energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln comprises a kiln head cover, a mercury ore feeding hopper, a high-temperature alloy steel inner container kiln barrel, a wheel belt, a movable carrier wheel group, a transmission device, a gear pair, a fixed carrier wheel group, a track and cement piles. The energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln has the advantages that the energy is clean, and the problems that a mercury metallurgy rotary kiln roasted by a coal furnace is low in production efficiency, severe in environmental pollution, high in energy consumption and the like is solved. The energy is used and distributed conveniently. Compared with a mode of heating by fuel, gas and the like, the heating mode of the energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln has the characteristics that heat efficiency is high, sensible heat is not taken out by smoke or ash, and a kiln body is simple and compact in structure, small in heat dissipation area, low in heat dissipation loss, easy to control and regulate automatically and high in kiln temperature control precision, and meets requirements of a narrow calcining temperature process. The production efficiency is high, energy consumption is reduced, and emission of environmental pollutants is reduced. The energy-saving and environment-friendly mercury metallurgy electromagnetic induction roasting rotary kiln is an innovation of energy conservation, environmental protection and an equipment technology of a mercury metallurgy kiln.

The invention discloses a burner outlet expansion section. A concave cavity is formed in the burner outlet expansion section, a plurality of sets of plasma exciters are arranged in the concave cavity, and plasma can heat fluid, produce active particles, induce flowing and enhance the swirling motion in the concave cavity, and thus fluid mixing in a burning zone can be facilitated, the burning state is improved, the burning stability is enhanced, and the flame length is shortened. The invention also discloses a burner adopting the burner outlet expansion section. According to the burner outlet expansion section, the effects that the stable operation range of the burner is broadened, the burning efficiency is improved and the axial size of a burning chamber is reduced are achieved; the problem of unstable burning of large-angle expansion sections is solved, and the problem of unstable burning caused by burning low-heat value fuel can also be solved.

The invention relates to biological diesel oil with high water content and its application. It belongs to liquid fuel technical field. The constituent weight percentages of the biological diesel oil are follows: fatty acid monoester 75-98%, water 1-20%, and emulsifier 0.1-5% whose hydrophilic oleophilic equilibrium value HLB is 1.0-8.0. And its features at room temperature are that its density is 0.80-0.96g/cm3; viscosity is 1.0-10.0 mm2/s; heat value is 32.00-42.00MJ/Kg; solution surface tension is 1.0*10-2-8.0*10-2N/m; and dripping diameter is 0.001-10.00um. The invention offers the emulsifying biological diesel oil with high water content which has storage stability. And it can simplify removing water technology, reduce manufacturing cost, and improve the burning performance of the biological diesel oil.

The invention discloses a mixed combustion device and combustion equipment utilizing same, and belongs to the technical field of combustion equipment. The mixed combustion device comprises a to-be-sprayed medium channel and a mixed combustion channel, wherein a reaction space wall for spacing the to-be-sprayed medium and the mixed combustion channel is provided with an orifice; and a combustion medium is sprayed from the to-be-sprayed medium channel to the mixed combustion channel through the orifice. From a combustion initial end of the mixed combustion channel to a combustion exhaustion end of the mixed combustion channel, combustion conditions are optimized along with progress of a combustion process; and different matching proportions of the to-be-sprayed medium are realized according to needs of different combustion stages, mixing uniformity of different media is realized to the greatest extent to facilitate combustion. The mixed combustion device is suitable for combustion of gas fuels, can be applied to combustion of liquid and solid fuels, and is especially suitable for combustion of fuels such as natural gas, coal gas, biogas, biomass cracking fuel gas, fuel oil, methanol, pulverized coal, biomass micro powder, straws, firewood, biomass forming fuels, block-shaped coals and the like.

The invention relates to a fuel additive which comprises the following components of ethanol, tertiary butanol, benzoic acid, distilled water, molybdenyl dialkyl dithiophosphate, copper diisooctyl dithiophosphate and benzotriazole fatty amine. After the fuel additive is mixed with internal combustion engine fuel in an internal combustion engine, the fuel can react rapidly and can combust completely in combustion, the content of carbon oxide in exhaust tail gas is greatly reduced, the abrasion between cylinders and pistons is reduced, and fuel is saved.

The invention aims to provide a hydrogen ignited ammonia-hydrogen mixed combustion zero-carbon engine and a control method, the hydrogen ignited ammonia-hydrogen mixed combustion zero-carbon engine comprises an engine, an ammonia storage tank and a hydrogen storage tank, the hydrogen storage tank is connected with a second oil supply pipeline through a first flowmeter, the second oil supply pipeline is connected with a second oil sprayer of the engine, and the ammonia storage tank is connected with a first oil supply pipeline through a third flowmeter. The first oil supply pipeline is connected with a first oil injector of the engine, and the hydrogen storage tank is connected with the first oil supply pipeline through a second flowmeter. According to the method, practical application of NH3/H2 fuel on the high-pressure common rail diesel engine can be promoted, data support is provided for the hydrogen compression ignition engine, development of the hydrogen compression ignition engine is promoted, and the method has great significance in achieving the zero-carbon emission target of carbon neutralization.

The invention discloses a premixing nozzle for part catalytic combustion, a nozzle array and a combustor. The premixing nozzle comprises a middle cylinder, an outer wall cylinder, a net hole plate, a wave cyclone structure and a catalyst coating layer. The wave cyclone structure is positioned in the outer wall cylinder; and fuels and air are mutually mixed before entering the nozzle. The combustion is performed in two areas; the catalytic combustion is performed on a cyclone; and the flame combustion is performed in an outlet of the combustor. The cyclone is a carrier of a catalyst; the drape surface of the cyclone effectively increases the area of a catalyst coating layer; an inclined flow channel on the cyclone can enable a combustion mixture to generate a rotating motion; and a waveform structure of an outlet and flow surrounding cylinders around a middle channel can increase the turbulent degree, improve the flowing uniformly and accelerate the flame propagation speed to reinforce the combustion stability. The premixing nozzle can lower the combustion temperature, realizes stable combustion of harmful gas and low-heat-value gas, reduces generation of such combustion pollutants as nitric oxides and carbon monoxide, and is harmless in harmful gas to the greatest extent.

The invention discloses a mould coal binder, and a preparation method thereof. The mould coal comprises, by mass, 0.5 to 0.75 parts of esterified swill-cooked dirty oil, 0.1 to 0.5 part of sodium carbonate, 3 to 5.5 parts of smithsonite, 85 to 91 parts of a consolidation agent, 0.3 to 0.5 part of basic zinc carbonate, 1 to 2 parts of potassium chloride, and 1 to 3 parts of polyacrylamide. No largeamount of pollutant is released in combustion of the mould coal binder, no secondary pollution is caused, and cleaning efficiency is high.

The invention provides a heatproof high oxygen storage denitration catalyst and a preparation method thereof. The formula of the catalyst comprises cerium nitrate, lanthanum nitrate, yttrium nitrate,gamma-alumina, nanometer titanium dioxide, a lubricant, a binder, a surfactant, a toughener and pore forming agent. The preparation method comprises the following steps: weighing the gamma-alumina andnanometer titanium dioxide, drying the weighed substances, and cooling the dried substances; adding the cerium nitrate, lanthanum nitrate, yttrium nitrate, the binder, the toughener and the pore forming agent into a pug mill, and performing uniform mixing; placing the obtained pug ball in a muffle furnace, and calcining the pug ball; adding the lubricant and the surfactant, and performing mixingto form a ball; dissolving the remaining cerium nitrate, lanthanum nitrate and yttrium nitrate, and adding a combustible component; and immersing the obtained spherical carrier in a combustion liquid,and performing calcining. The catalyst carrier has a high specific surface area to improve the low-temperature activity and the life of the catalyst; a low-temperature self-propagating combustion coating process is adopted is adopted to achieve uniform distribution of active components in the catalyst; and the spherical catalyst has an improved catalysis efficiency.

The invention discloses a preparation method of a small-grain-size cobalt-based aluminum oxide catalyst. The method comprises the steps that by adopting a sol-gel method, hydrochloric acid is adoptedas an acidity regulator, acetic acid is adopted as an interface protective agent to synthesize an alumna supporter, then, cobaltous acetate is adopted as a cobalt source, diglycol is adopted as a complexing agent, and a dipping method is adopted for manufacturing the small-grain-size cobalt-based aluminum oxide catalyst. Compared with existing cobalt-based aluminum oxide synthesized by adopting glycine and urea as complexing agents, the grain size of cobaltosic oxide in synthesized cobalt-based aluminum oxide is smaller, the number of catalyst surface active loci is increased, and the interaction strength between the supporter and active ingredients is enhanced. In addition, the cobalt-based aluminum oxide is good in thermal stability, generation of a CoAl2O4 non-active phase can be restrained within the certain temperature range, and the activity of the catalyst in the methane catalyst combustion reaction is improved. The method is easy to implement, the synthesized cobalt-based aluminum oxide can be adopted as a catalyst carrier and can also be adopted as a catalyst obtained after a methane catalysis combustion reaction, and the good application prospect is achieved.

The invention provides a noble metal catalyst, which employs noble metal as a first active component and stannic oxide as a second active component, and a methane combustion catalyst having high catalytic activity and sintering-resistant performance is obtained. The stannic oxide can protect the noble metal component from sintering, contains abundant and active surface oxygen vacancy, the latticeoxygen in a body phase has certain activity, at the same time, the surface of the stannic oxide has Lewis acid center, realizes effective catalysis, and is in favor of a catalytic combustion reactionof methane. A part of the noble metal is introduced into lattice of stannic oxide to substitute the divalent tin ions, and can increase the cavity concentration, so that the free electron concentration is reduced, adsorbed oxygen ions can be formed at the surface of the catalyst, the noble metal catalyst is in favor of generation of an oxidation reaction by the reductibility gas methane at the surface of the catalyst through oxygen ion adsorption, and the activity of the catalyst is increased.

An energy-releasing apparatus for energizing and covibrating fuel molecules and arranging reactant molecules. The energy-releasing apparatus is installed in a predetermined position in an engine compartment of a vehicle. The energy-releasing apparatus includes at least one first energy-releasing section disposed beside the electrodes of the battery in the engine compartment chamber and at least one second energy-releasing section disposed in the engine compartment beside the intake duct of the combustion chamber. The first and second energy-releasing sections generate left-handed force field to arrange the electrons or the battery and the gas molecules in the intake duct. The left-handed force field further energizes the alkylate molecules of the fuel entering the combustion, whereby the molecules of all the reactants participating in the burning reaction are uniformly arranged and activated so as to achieve a complete reaction.

The invention discloses an integrated incineration device capable of treating yellow phosphorus exhaust gas without pollution and recovering energy. The integrated incineration device consists of a device body; the device body comprises a first combustion tower and a second combustion tower; a fluidizer is arranged on the bottom side of the first combustion tower; a first ejector positioned on theupper side of the fluidizer is arranged on the outer wall of the first combustion tower; a second ejector is arranged on the outer wall of the first combustion tower on the upper side of the first ejector; and the second combustion tower communicates with an exhaust gas absorption tower. The invention aims to provide the incineration device that solves the problems of low treatment efficiency andhigh operating cost in the existing yellow phosphorus exhaust gas treatment, treats the yellow phosphorus exhaust gas, simultaneously performs energy recovering and reducing the operating cost.