138results about How to "Improve combustion effect" patented technology

The invention belongs to the related technical field of metal fuels, and discloses an aluminum-lithium alloy powder fuel and a preparation method thereof, the aluminum-lithium alloy powder fuel is prepared from the following raw materials in percentage by mass: 2-10% of Li, 0.1-5% of Mg, 0.1-3% of RE and the balance of Al. The added Mg element can separate out stable, fine and uniformly-distributed intermetallic compounds besides a micro-explosion effect, the activity of Li in the alloy can be reduced, the stability of the fuel can be improved, the added RE element can form an Al3 (Li, RE) precipitated phase with a core-shell structure by taking the precipitated intermetallic compound Al3RE as a heterogeneous nucleation particle of a metastable phase delta '(Al3Li), and the stability of the fuel can be improved. Through targeted component design, the structure regulation and control of the precipitated phase in the alloy powder can be realized, so that the microstructure of the precipitated phase is improved, and the combustion performance of the fuel is improved.

The invention provides an injection pipe and a combustor with the injection pipe, and belongs to the technical field of gas stoves, the injection pipe comprises an injection pipe body and a gas mixing structure connected to the injection pipe body, the gas mixing structure comprises at least one premixing cavity, and the gas passing area of the premixing cavities is increased firstly and then decreased in the gas flow direction. According to the injection pipe, fuel gas and air can be fully premixed in the injection pipe, the problems of non-uniform pressure, non-uniform flame length, non-uniform heating and the like in a fire distributor are solved, and the combustion performance, stability and user experience of a product are improved.

The present invention discloses a direct-fired semi-gasification biomass boiler for straw bale burning, comprising: a boiler body, a straw drying and breaking chamber, and a chain grate; the boiler body comprises a boiler shell and a furnace, and the boiler shell is fixed to the top of the furnace; a rear arch, a front arch, a partition wall, etc. are fixed in the furnace and have a semi-gasification combustion chamber, a fixed carbon burnout chamber, and an enhanced combustion chamber; the chain grate is horizontally arranged at the bottom of the furnace and a plurality of air chambers are arranged below it along its conveying direction; the straw drying and breaking chamber is arranged in front of the feed port of the boiler body, and a straw breaking device is arranged inside it. The present invention solves the problem of direct-fired straw bale burning by arranging a straw breaking device; due to the use of a chain grate, continuous feeding and continuous slag discharge are possible; at the same time, the staged combustion of the semi-gasification combustion chamber, the fixed carbon burnout chamber, and the enhanced combustion chamber not only improves the combustion effect, but also produces a low concentration of nitrogen oxides, achieving the effect of energy saving and environmental protection.

The invention discloses a deep in-situ resource composite fluidization mining method. The method comprises deep in-situ resource liquefaction mining, deep in-situ resource gasification mining and deep in-situ resource reinforcement and degradation. Wherein deep in-situ resource liquefaction exploitation is realized through combination of well group hydraulic fracturing and organic solvent dissolution; in the deep in-situ resource gasification mining, the residual solid coal resources after liquefaction are gasified and combusted, and heat extraction is achieved through heat exchange; in the deep in-situ resource reinforcement and degradation process, during filling reinforcement, residual coal resources are continuously utilized through the degradation effect of microorganisms; integrated mining is formed through mutual cooperation of liquefaction, gasification and microbial degradation of deep in-situ resources, the utilization efficiency of deep in-situ resource conversion is greatly improved, the resource recovery rate is remarkably improved, underground residual chemical reagents are treated, the problem of environmental pollution is effectively relieved, and the method is suitable for industrial production. And a technical support is provided for the development of a deep in-situ resource fluidization mining theory.

The present invention discloses an automobile exhaust reforming device and a reforming system, which are used to introduce a mixed gas of automobile exhaust and methane. The automobile exhaust reforming device comprises: a shell having a cavity, an air inlet and an air outlet, a first baffle, a catalytic element and a cooling assembly. The first baffle is built into the shell and divides the cavity into a catalytic cavity and a cooling cavity which are independent of each other. The catalytic cavity is connected to the air inlet, and the cooling cavity is connected to the air outlet. The catalytic element is connected to the inner wall of the catalytic cavity to promote the occurrence of a catalytic reaction. The cooling assembly comprises at least one heat exchange tube and a heat exchange medium built into the cooling cavity, and one end of the heat exchange tube is connected to the catalytic cavity and the other end is connected to the air outlet. The heat exchange medium is filled between the inner wall of the cooling cavity and the outer wall of the heat exchange tube, and is used to cool down the material in the heat exchange tube. The present invention can solve the problem that the reformer has low reforming efficiency for automobile exhaust due to the lack of a cooling device, and can improve the utilization of waste heat of engine exhaust and the combustion effect.

The invention belongs to the field of efficient carbon emission reduction and carbon cyclic utilization, and discloses a cement kiln system for coupling oxygen-enriched combustion with flue gas cyclic enrichment and carbon dioxide capture. A grate cooler in the system adopts a three-section grate plate, a partition plate is arranged in the grate plate to form a three-section cavity, the first-section cavity and the second-section cavity are provided with mixed gas inlets for introducing mixed gas of oxygen-enriched gas and circulating flue gas, and the third-section cavity is provided with an air inlet; the oxygen supply system is communicated with related pipelines to provide oxygen-enriched gas for the cement kiln; the decomposing furnace comprises a main decomposing furnace and a pre-decomposing furnace and is special in structure and position; the flue gas circulating system comprises various parts, and the flow direction of flue gas is controlled according to the concentration of carbon dioxide. According to the invention, air mixing between secondary and tertiary air and hot air is avoided, so that the concentration of secondary and tertiary air oxygen-enriched gas can be independently controlled, the concentration of carbon dioxide in the cement kiln is improved through flue gas circulation, the trapping difficulty and cost are reduced, meanwhile, the flow and temperature of the oxygen-enriched gas and circulating flue gas in the kiln can be accurately controlled, and the device is suitable for efficient and continuous production of cement clinker.

The invention relates to the technical field of gas turbines, in particular to an automatic combustion adjustment method, device and equipment of a gas turbine and a storage medium. Whether the combustion process of the gas turbine needs to be interfered or not is judged by collecting working parameters in the operation process of the gas turbine; the single adjustment step length is determined according to the current working parameters of the gas turbine, and finally the valve opening degree of at least one fuel inlet in the gas turbine is adjusted according to the predetermined automatic fuel adjustment strategy, so that the working parameters of the gas turbine are reduced to be within the preset safe working parameter interval. The combustion performance of the gas turbine in the operation process is improved, and the technical problem that in the prior art, the combustion performance of the gas turbine fluctuates, and consequently the pollutant emission amount of the gas turbine is too high is solved.

The invention discloses a clay activation process coupling oxygen-fuel combustion and suspension calcination, and relates to the technical field of cement raw material treatment. The invention relates to a clay activation process for coupling oxygen-fuel combustion and suspension calcination, which is characterized in that smoke of oxygen-fuel combustion is used as combustion gas, so that the heat loss of heating low-temperature air is avoided, the oxygen content in the smoke can be controlled, the combustion effect of alternative fuel is improved, and the reducing atmosphere is maintained; meanwhile, compared with single suspension calcined clay, oxygen-free environment cooling and reducing atmosphere calcination are achieved under the condition that additional means are not added, the use of alternative fuel can be further improved, tail end smoke can return to an oxygen-fuel combustion production line and enter a carbon capture system, and production of zero-carbon calcined clay is truly achieved; the problem of high carbon emission in traditional cement production is solved while optimal allocation of resources and efficient utilization of energy are achieved, zero-carbon cement preparation is achieved, carbon emission in the cement industry is remarkably reduced, and the environmental influence is reduced.

The low-nitrogen combustor comprises a machine body and a combustion pipe, one side of the machine body is communicated and connected with an air suction cover, a centrifugal wind wheel is arranged in an inner cavity of the air suction cover, an air suction opening is formed in the outer side wall of the air suction cover, the outer side surface of the air suction opening is detachably connected with a dust filtering plate, and the air suction opening is communicated with the combustion pipe. A driving rod is rotationally arranged in the center of the dust filtering plate and detachably connected with the centrifugal wind wheel, a brush plate is arranged on one side of the driving rod, and a servo motor is arranged on the side, opposite to the air suction cover, of the machine body. By means of the blast structure and the gas mixing mechanism, recombined air can be provided for fuel gas during combustion of the boiler and can be fully mixed with the fuel gas, so that the fuel gas of the boiler is fully combusted during combustion, production of nitrides is reduced, and the environmental protection property of the boiler during use is improved.

The present invention discloses a photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy, and belongs to the technical field of flare towers. A photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy comprises a flare tower body and a heat exchanger arranged on its surface, a burner is fixedly installed on the top surface of the flare tower body, and a mixer is fixedly installed inside the burner. The photothermal flare tower in which the chemical energy of combustible gas is complementary to solar energy can design the ratio of the first airtight plate and the second airtight plate according to the ratio of air and combustible gas for full combustion in the prior art. At this time, the air leaked from the air outlet and the combustible gas leaked from the combustible gas outlet are mixed in a proportion to each other and enter the interior of the mixing chamber, so that the air and the combustible gas are mixed in a proportion to each other, thereby achieving full combustion of the combustible gas, reducing the waste of combustible gas, and also reducing the pollution to the atmospheric environment, thereby ensuring the quality of the atmospheric environment.

This invention discloses a graphene oxide / carbon nanotube-based coal combustion catalyst, its preparation method, and its applications, belonging to the field of catalytic combustion technology for efficient coal utilization. First, graphene oxide is used as a carrier, and then carbon nanotubes and manganese oxide are grown on its surface in a one-step process using condensation and redox reactions, followed by co-firing with coal. The graphene oxide / carbon nanotube-based combustion catalyst prepared by this invention effectively improves combustion efficiency, reduces the ignition temperature of coal, and lowers the reaction activation energy, resulting in significant economic benefits and broad application prospects.

The anti-blocking direct-spraying fire cover comprises a fire cover body, a gas supplementing channel is arranged in the center of the fire cover body, a water discharging portion is arranged at the position, corresponding to the upper portion of the gas supplementing channel, of the fire cover body, and the vertical projection of the water discharging portion is arranged in the radial direction of the fire cover body. The lower sides of the head end and the tail end of the water discharging part are fixedly connected with the upper side of the fire cover body, by arranging the water discharging part, liquid dripping from the center position of the bottom of a pot on the upper portion can be guided to the upper side surface of the fire cover body through the water discharging part, and high temperature generated in the working process of the fire cover body can evaporate the liquid; the nozzle is prevented from being easily blocked, and the combustion effect of the furnace end is improved.

The invention relates to the technical field of gas turbines, in particular to a control method, device and equipment for a full-model gas turbine and a storage medium. Determining to-be-adjusted working parameters which do not meet the working requirements according to the current working parameters of the gas turbine and the target safe working parameter interval, and adjusting the running state of the gas turbine, so that the to-be-adjusted working parameters are reduced to be within the target safe working parameter interval, the combustion performance of the gas turbine is improved, and the service life of the gas turbine is prolonged. And the influence of different types of gas turbines is avoided, and the technical problem that the combustion performance of various types of gas turbines cannot be efficiently controlled in the prior art is solved.

The utility model discloses an intrinsically safe oven device for sulfite production, which comprises an oven body, a mixing pipe fixedly connected to the side surface of the oven body, a sulfur spraying pipe fixedly connected to the side surface of the mixing pipe, a gas conveying pipe fixedly connected to the side surface of the mixing pipe, and a spiral plate fixedly connected to the side inner wall of the mixing pipe. A fan is fixedly connected to the upper surface of the furnace body, a filter box is fixedly connected to the output end of the fan, a heating tank is fixedly connected to the filter box through a pipeline, an air inlet is fixedly connected to the side surface of the heating tank, and an exhaust pipe is fixedly connected to the end, away from the heating tank, of the air inlet; the inner wall of the heating tank is fixedly connected with a heating pipe, and the side surface of the heating tank is fixedly connected with a gas-guide pipe. By means of the components, liquid sulfur and combustion-supporting gas are fully mixed through the gas conveying pipe and the spiral plate, the utilization rate of raw materials is increased, smoke generated by combustion is used for conducting waste heat treatment on the combustion-supporting gas, energy is effectively utilized, and the combustion effect is improved.

The utility model discloses an anti-frost-heaving flame-retardant signal cable, and belongs to the technical field of cables. Comprising a cable core, a shielding layer, an anti-frost heaving force layer, a wrapping layer and an outer sheath. The outer side of the cable core is wrapped by the shielding layer, the outer side of the shielding layer is wrapped by the anti-frost heaving force layer, the anti-frost heaving force layer is wrapped by the wrapping layer, and the outer side of the wrapping layer is wrapped by the outer sheath. When the signal cable is applied to a frozen soil region, the signal cable can meet the flame retardance and cold resistance at the same time.

The invention belongs to the technical field of fuel additives, and particularly relates to a preparation method of micro-quantum core mother liquor for an internal combustion engine. S1, raw material pretreatment and solvent dehydration; s2, preparation of a combustion and calorific value enhancement functional mother solution A; s3, preparation of a system protection function mother solution B; s4, preparing a mother solution C with stable operation and lubricating functions; and S5, compounding, degassing and finely filtering the three functional mother liquor. An eight-element synergistic system is constructed, and the micro-quantum core mother liquor for the internal combustion engine is prepared by adopting a three-module step-by-step preparation process; after methanol fuel is added, the combustion efficiency, power output and cold start performance can be synergistically improved, meanwhile, electrochemical corrosion, sealing element swelling and part abrasion are inhibited, and it is guaranteed that the fuel is stably stored for a long time; the process avoids the compatibility problem of multi-additive mixing, and solves multiple contradictions of energy improvement, material protection and fuel stability.

The invention discloses a decoking agent with safe components and a preparation method of the decoking agent. The technical problem that a traditional decoking agent usually contains explosive components is solved. The catalyst comprises the following raw materials in parts by weight: 12-20 parts of aluminum nitrate; 12 to 20 parts of potassium nitrate fertilizer; 20 to 35 parts of ammonium sulfate fertilizer; 20 to 40 parts of boric acid; 8 to 25 parts of copper nitrate; 500 to 550 parts of deionized water; and 100-200 parts of an ammonium nitrate phosphate fertilizer. Compared with a traditional decoking agent, the decoking agent disclosed by the invention has remarkable safety and high efficiency. The nitrate fertilizer subjected to explosion-proof modification treatment is adopted as a main component, so that the decoking effect of nitrate is reserved, the safety of the decoking agent is also remarkably improved, and the operation risk and the production cost are reduced.

The present invention discloses an environmental protection system for collecting and treating unorganized exhaust gas and a treatment method thereof. The system comprises a recovery chamber, an unorganized exhaust gas connection end, a waste heat exchange module, a catalytic combustion module and a heating module. An exhaust port and an air inlet are provided on the recovery chamber. The waste heat exchange module, the catalytic combustion module and the heating module are arranged in the recovery chamber. A drainage channel is provided on the cavity wall of the recovery chamber. The input end of the waste heat exchange module is connected to the unorganized exhaust gas connection end, and the output end is connected to the upper end of the drainage channel. The lower end of the drainage channel extends to a position above the air inlet. The unorganized exhaust gas is cleverly used to supplement oxygen for high-temperature exhaust gas, thereby improving the effect of supporting combustion, making combustion more complete and having a good purification effect. At the same time, the waste heat of the purified exhaust gas is used to heat the unorganized exhaust gas to a starting temperature, thereby effectively saving energy and achieving the purpose of energy saving and environmental protection, further improving the purification treatment effect, and facilitating wide promotion and application.

The utility model relates to the technical field of gas water heaters, in particular to a burner gas inlet front pipe, a gas distribution device and a gas water heater, and the burner gas inlet front pipe comprises a front pipe body with an inner cavity and at least one flow guide part; the flow guide piece is arranged in the inner cavity and divides the inner cavity into at least two distribution inner cavities; the front pipe body is provided with at least two fluid inlets, and the two fluid inlets are communicated with the two distribution inner cavities in a one-to-one correspondence mode. The flow guide part is provided with a flow guide section, and the flow guide section inclines towards one side of the fluid inlet; according to the combustor, the flow guide section on the flow guide part is obliquely arranged towards one side of the fluid inlet, so that the uniformity of the fluid entering the distribution inner cavity can be improved, and the combustion effect and the use stability of the combustor can be improved.

The present invention relates to a burner, comprising an ejector (1) and a combustion head (2), characterized in that: the ejector (1) is sleeved in an annular gas distribution pipe (3), the gas distribution pipe (3) is provided with a gas inlet (31) connected to the inner cavity of the gas distribution pipe, and the side wall of the gas distribution pipe is also provided with a plurality of nozzles (32) connected to the inner cavity of the gas distribution pipe; the ejector (1) comprises an air mixing chamber (11) and a plurality of mutually independent ejection channels (12), the inlet of each ejection channel is respectively opposite to each of the nozzles (32) and connected to the surrounding environment, the outlet of each ejection channel is connected to the air mixing chamber (11), and the outlet of the air mixing chamber (11) is connected to the inlet of the combustion head (2).

This invention relates to the field of aero-engine technology, disclosing a combustion assembly and an aero-engine. The invention includes: a flame tube; an evaporator tube comprising a main pipe and several branch pipes, one end of the main pipe forming an evaporator tube inlet, the branch pipes corresponding to the other end of the main pipe, and the ends of the branch pipes away from the main pipe forming several evaporator tube outlets, which are located within the flame tube; and a fuel supply structure connected to the evaporator tube inlet. This invention, by arranging the branched evaporator tubes in a blood vessel-like pattern on the flame tube, increases the probability of fuel breaking up upon impact with the wall under the action of the branched structure, resulting in better fuel atomization. Simultaneously, because the branched evaporator tubes have a larger contact area with the hot wall surface, they absorb more heat, thus allowing the fuel to be heated more fully, thereby evaporating more fuel and ultimately improving combustion efficiency.

The utility model discloses a kind of positive and negative cyclone coke oven gas combustion devices, including the top spare compressed air pipeline, the coke oven gas tee joint of being sleeved in spare compressed air pipeline outer layer, the air pipe of being sleeved in coke oven gas tee joint outer layer, the refractory cement base of being sleeved in air pipe outer layer;Refractory cement base side sets ignition burner, ignition burner opposite side sets igniter, the air pipe inside and the outside between gas pipeline are set positive cyclone device, the coke oven gas tee joint inside and between spare compressed air pipeline are set negative cyclone device.The utility model discloses a kind of positive and negative cyclone coke oven gas combustion devices can realize the probability of automatic successful ignition, burner service life is long and improve combustion temperature.

The invention discloses a treatment process of a solid hazardous waste resource environment-friendly treatment device, which comprises a centrifugal mechanism, a drying mechanism, an incineration mechanism and a heat exchange mechanism, the heat exchange mechanism is arranged on one side of the incineration mechanism, the drying mechanism is arranged above the incineration mechanism, and the centrifugal mechanism is arranged above the drying mechanism; medical gauze soaked in disinfectant enters the centrifugal mechanism to be centrifuged to remove disinfectant fluid, then enters the drying mechanism to be dried to facilitate subsequent ignition and enters the incineration mechanism to be incinerated, the heat exchange mechanism conducts heat exchange through heat generated by incineration, and then heat is supplied to the drying mechanism to achieve the drying effect. According to the device, solid-liquid separation can be conducted on gauze soaked in a disinfectant through the centrifugal mechanism, then the gauze is dried through the drying mechanism so that the subsequent combustion speed can be increased, and finally the gauze is subjected to final environment-friendly treatment through incineration; and meanwhile, heat generated by the incineration mechanism can be recycled through the heat exchange mechanism and supplied to the drying mechanism to be recycled.

The utility model relates to the technical field of hearths, and discloses a hearth assembly of a coal-fired power generation boiler, which comprises a hearth mechanism, a feeding door and an air inlet pipe, the feeding door and the air inlet pipe are respectively communicated with the front side and the left side of the hearth mechanism, the right side of the hearth mechanism is communicated with a square pipe, and a filter module is inserted in an inner cavity of the square pipe. An air outlet of the square pipe is communicated with a three-way valve set, the back face of the three-way valve set is communicated with a bent pipe, the bent pipe is communicated with the air inlet pipe, a limiting mechanism is inserted into the top of the filtering module and comprises a T-shaped arm, and a spring is connected between the T-shaped arm and the filtering module. According to the hearth assembly of the coal-fired power generation boiler, the combustion effect of fuel is improved, then waste gas is recycled, energy loss is reduced, the filtering module is rapidly assembled and disassembled from the interior of the square pipe through the additionally-arranged T-shaped arm, spring, connecting rod, clamping block and clamping frame, and therefore the assembling and disassembling speed of the filtering module is increased, and the assembling and disassembling efficiency of the filtering module is improved. And a worker can conveniently maintain and overhaul the filtering module.

The invention relates to the technical field of liquid fuel, and provides diesel engine power fluid and a preparation method thereof.The diesel engine power fluid is composed of, by mass, 50%-60% of fuel, 4%-8% of surfactant, 6%-12% of additive and the balance water; the additive is prepared from the following components in parts by weight: 30 to 50 parts of alkyl nitrate, 1 to 11 parts of ferrocenecarboxylic acid, 9 to 18 parts of dicumyl peroxide and 2 to 10 parts of diethyl phosphite. According to the technical scheme, the problem that the combustion performance of power liquid of a diesel engine is insufficient in the related technology is solved.

The utility model discloses a torch barrel with a separation barrel, and relates to the technical field of oil exploitation. The torch barrel with the separation barrel comprises the water-vapor separation barrel, a separation assembly and a knocking assembly. The separation assembly is arranged on the water-vapor separation barrel and comprises a sliding barrel and a filter plate, and the filter plate is fixedly mounted on the inner wall of the sliding barrel. According to the torch barrel with the separation barrel, water vapor in associated gas generated by petroleum can be filtered through a filter plate and then left in the water vapor separation barrel, the water vapor in the associated gas is removed, and therefore the combustion effect of the associated gas can be improved, air can be protected, and the environmental protection property of a device is improved; a sliding barrel can be shaken, so that when a filter plate is full of water drops, the water drops are separated from the filter plate in a shaking manner, and then the water drops fall to the bottom of a water-vapor separation barrel to be collected, and the water filtering effect of the device is improved.

The utility model discloses a kind of combustion device and combustion system, comprising: hearth, hearth provides space for material combustion;Primary air chamber, primary air chamber is used to form primary air;Air distribution plate, hearth is communicated with primary air chamber by air distribution plate;Ammonia gas pipeline, ammonia gas pipeline is located in hearth and close to air distribution plate;Ammonia gas air cap, ammonia gas air cap is used to communicate ammonia gas pipeline and hearth, and the gas in the hearth is guided, the surface of ammonia gas air cap has ammonia cracking catalyst layer, ammonia cracking catalyst layer can at least part of ammonia gas that passes through ammonia gas air cap is cracked into nitrogen and hydrogen. Since the minimum ignition energy of hydrogen is lower than that of ammonia and the combustion temperature is high, hydrogen is more easily combusted than ammonia, which can improve the combustion characteristics in the hearth and enhance the effect of ammonia combustion, thereby reducing ammonia escape, while allowing more ammonia to react with nitrogen oxides, achieving the purpose of inhibiting the formation of nitrogen oxides.

The invention discloses a complete combustion-supporting furnace which comprises a combustion structure, a supporting structure, an air guide structure capable of adjusting the air volume, a furnace ash tray and a furnace bar located over the furnace ash tray. The first flow guide path set is used for allowing external air to enter the combustion chamber for combustion supporting, an air outlet of the second flow guide path set is located above an air outlet of the first flow guide path set, and an air outlet of the third flow guide path set is located above an air outlet of the second flow guide path set. The first air outlet holes form air outlets of the first flow guide path group, air outlets of the second flow guide path group are arranged around the middle of the combustion chamber, and air outlets of the third flow guide path group are arranged around the upper portion of the combustion chamber. According to the stove, secondary combustion supporting and tertiary combustion supporting can be achieved, fuel can be combusted more sufficiently and thoroughly, and therefore the combustion firepower and combustion efficiency of the fuel can be improved, and emission of harmful smoke is greatly reduced.

The present invention provides a nozzle for a gas-particle two-phase suspension metallurgical process, wherein the concentrate is first mixed with swirl wind to produce a premixing effect, and the concentrate particles are dispersed more evenly under the action of the swirl wind. The dispersion of the premixed concentrate and swirl wind is further enhanced by the flow-guiding effect of the guide cone surface. The distributed wind coming out of the dispersed flow channel outlet of the dispersed surface further disperses the concentrate moving there, and the degree of mixing with the peripheral process wind is more sufficient and uniform, thereby improving the concentrate combustion effect, strengthening the mass transfer and heat transfer rates in the reaction tower, helping to improve the equipment capacity, and effectively reducing the smoke dust occurrence rate and the SO3 generation rate in the flue gas.

This utility model relates to the technical field of moxibustion devices, specifically to a moxibustion device. The lower cover contains a filter; a lower cylinder is fitted onto the lower cover, with ventilation holes on its outer wall; an upper cylinder is fitted into the lower cylinder, with an interference fit; a bracket is located inside the upper cylinder, with a needle fixed at the center of its bottom; a moxa stick positioning device is located at the lower part of the bracket, with the sharp end of the needle passing through and suspended inside the device; a moxa stick is installed inside the positioning device and fixed to the needle; a fixing ring is located at the upper part of the bracket, with an interference fit between the ring and the upper cylinder. This utility model, by adding a moxa stick positioning device inside the moxibustion device, ensures that the moxa stick is fixed inside the device during installation, preventing it from burning and contacting the cylinder body, thus avoiding burns to the user if the moxa stick is misaligned.