21results about How to "Raise the combustion temperature" patented technology

The invention belongs to the technical field of heating furnaces, and particularly relates to an oxygen-enriched combustion system and method for a coal gas single heat storage type heating furnace. Comprising an oxygen pressure regulating branch, a first heating section oxygen lance oxygen injection branch and a main pipe oxygen enrichment branch, the oxygen pressure regulating branch is provided with a pressure transmitter and a temperature transmitter, an oxygen source is communicated with the pressure transmitter and the temperature transmitter through a pipeline, and oxygen flows into the first heating section oxygen lance oxygen injection branch and the main pipe oxygen enrichment branch after being subjected to pressure regulation through a pressure valve. A flow control valve is arranged on the first heating section oxygen lance oxygen injection branch, oxygen is fed into the heating furnace, and the main pipe oxygen enrichment branch feeds enriched oxygen into the main pipe through an enriched oxygen distributor. Flexible switching of different oxygen enrichment modes of the heating furnace is achieved, the burner in the oxygen lance oxygen injection branch of the first heating section is not reversed, total-oxygen combustion of the burner is achieved, under the oxygen enrichment branch of the main pipe, oxygen is conveyed to the main pipe through the oxygen enrichment distributor through the other branch to be mixed with combustion air, and total-furnace oxygen enrichment combustion is achieved.

The invention discloses a comprehensive recycling system for waste gas of a pressure swing adsorption nitrogen making device. The comprehensive recycling system comprises an air compressor, a refrigerated dryer, a first filter, a drying tower unit, a second filter, an air storage tank, an adsorption tower unit and a nitrogen storage tank which are sequentially connected through a pipeline, the drying tower unit comprises drying towers arranged in parallel, the inlet ends of the drying towers are connected with the first filter, and the outlet ends of the drying towers are connected with the second filter; the adsorption tower unit comprises adsorption towers arranged in parallel, the inlet ends of the adsorption towers are connected with an air storage tank, the outlet ends of the adsorption towers are connected with a nitrogen storage tank, and the nitrogen storage tank is provided with a nitrogen back-blowing pipe connected with the adsorption towers; a recovery pipe connected with the waste gas storage tank is arranged on the adsorption tower inlet switching pipeline, and a waste gas blowback pipe connected with the drying tower and an oxygen-enriched waste gas pipe connected with a boiler air inlet pipe are arranged at an outlet of the waste gas storage tank. The system is simple in structure and easy to implement, the cost is low when an existing nitrogen making device is transformed, and the energy consumption of the system can be effectively reduced.

The utility model relates to the technical field of movable kitchen cooking benches, and discloses a movable kitchen cooking bench which comprises a movable cooking bench box, a hand-pulling air bellow is fixedly connected to the outer portion of the movable cooking bench box, an air bellow handle is movably connected to the outer portion of the hand-pulling air bellow, and a ventilation opening is formed in the outer portion of the air bellow handle. A supporting frame containing groove is formed in the outer portion of the movable cooking bench box, a chopping board supporting frame is movably connected into the supporting frame containing groove, the outer portion of the chopping board supporting frame is movably connected with a supporting frame sleeving device in a sleeving mode, and the outer portion of the supporting frame sleeving device is movably connected with a sleeving device containing groove; according to the movable cooking bench, the hand-pulling air bellow is arranged on the side face of the movable cooking bench box, when an operator needs high temperature, air can be generated by pulling an air bellow handle, and the air is transmitted into the stove through the ventilation opening, so that the combustion temperature of the movable cooking bench is increased, and the use experience of operation is effectively improved.

The device is arranged in the combustion chamber, a flame tube is arranged in the combustion chamber, and the device comprises a high-pressure fuel spray pipe and a concentric-square-shaped evaporation pipe; the high-pressure fuel spray pipe penetrates through the side wall of the combustion chamber and is connected with a high-voltage power supply to serve as an anode; the concentric-square-shaped evaporation pipe penetrates through the side wall of the flame tube to serve as a cathode; an anode oil spraying opening of the high-pressure fuel oil spraying pipe and a cathode expanding type fuel oil opening of the concentric-square-shaped evaporation pipe are coaxially arranged, and the end of the anode oil spraying opening extends into the cathode expanding type fuel oil opening. Through high-voltage arc discharge, fuel oil is physically promoted to be split into tiny liquid drops, and macromolecular fuel oil is partially split into micromolecular fuel with higher chemical activity, so that the chemical reaction rate is greatly increased, and rapid and sufficient combustion of the fuel oil is realized.

The regenerated lead alloy pot comprises a furnace body, a lead pot is arranged in a hearth in the middle of the furnace body, the furnace body is composed of a supporting layer arranged on the outer side and a heat preservation layer arranged on the inner side, and a heat storage cavity is formed by the distance between the inner wall of the heat preservation layer and the outer wall of the lead pot arranged in the hearth. A plurality of detachable combustors which are annularly distributed at the upper part of the heat storage cavity are detachably arranged on the supporting layer; the detachable combustor comprises a compressed air sleeve, a natural gas sleeve and an oxygen sleeve which are sequentially sleeved from inside to outside. The detachable combustors are annularly distributed on the heat storage cavity of the lead pan, and the outlets of the detachable combustors are tangentially arranged along the outer wall of the lead pan, so that the periphery of the lead pan is uniformly heated, the tail ends of the detachable combustors are prevented from being directly aligned to the outer wall of the lead pan for heating, and the service life of the lead pan is prolonged.

The invention discloses a high-efficiency biomass gas burner, and belongs to the technical field of biomass particle burning, the high-efficiency biomass gas burner comprises a first supporting table, a speed reducer is mounted at the upper end of the right side of the first supporting table, first steering wheels are movably connected to the edge ends of the outer side of the first supporting table, and a feeding bin is fixedly connected to the upper end of the left side of the first supporting table; a spiral conveyor is installed in the feeding bin, one end of the spiral conveyor is fixedly connected with the transmission end of the speed reducer, biomass particles are fed in the feeding bin in a unified mode, and then the biomass particles are gradually conveyed into the efficient treatment assembly under the action of the spiral conveyor; and in the conveying period, under the continuous spiral conveying of the spiral conveyor and the continuous heat supply of the hot air blower, the biomass particles can be in large-area contact with hot air, so that moisture contained in the biomass particles is evaporated, the biomass particles are dried, and the combustion temperature and the combustion efficiency of the subsequent biomass particles are 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 relates to a sintering flue gas treatment system and method for reducing CO emission. The sintering flue gas treatment system comprises a first flue gas treatment loop, a second flue gas treatment loop, a main flue gas treatment loop, a first detector group, a second detector group, a third detector group, a controller and the like. Waste flue gas of the low-temperature working section of the sintering machine is extracted through the first flue gas treatment loop and fed into a combustion area of the high-temperature working section of the sintering machine to participate in combustion, and CO contained in the waste flue gas is oxidized into CO2; waste flue gas of the sintering machine high-temperature section is extracted through a second flue gas treatment loop and fed into a combustion area of the sintering machine low-temperature section to participate in combustion, and high-temperature heat is provided for the low-temperature section; and the main flue gas treatment loop is used for carrying out heat exchange and temperature rise on the extracted flue gas through the circular cooler, and CO contained in the flue gas is oxidized into CO2. According to the invention, the CO in the sintering flue gas is efficiently removed, the operation is simple, convenient and flexible, the flue gas waste heat utilization is realized, and the removal efficiency of the CO in the sintering waste flue gas is improved.

The present application belongs to the technical field of solid composite propellant recycling, and particularly relates to a method for crushing waste solid composite propellant. First, a composite precipitate of iron hydroxide and aluminum hydroxide is generated by using ferric chloride hexahydrate and aluminum chloride hexahydrate, the precipitate is filtered and washed, and then is mixed with carbon nanotubes and ethanol for ball milling, and finally is calcined to obtain a nano composite grinding aid. After the nano composite grinding aid is prepared into a suspension, the waste solid composite propellant is crushed together with the suspension, and the crushed solid composite propellant particles are separated by screening. The nano composite grinding aid prepared by the present application can improve the performance of the propellant, and the crushing method is particularly suitable for combustion recycling of the waste solid composite propellant. In the combustion recycling, the combustion efficiency and energy release are enhanced, so that the recycling heat value and energy utilization rate of the propellant can be significantly improved.

This application provides an oxygen-enriched glass kiln, relating to the field of kiln technology, comprising a kiln body, a preheating pipe, and an air inlet pipe. The kiln body is equipped with a burner nozzle. A flue gas pipe is connected between the kiln body and the preheating pipe. A flue gas outlet pipe is connected to the top of the preheating pipe, and a filter screen is fixedly installed inside the flue gas outlet pipe. An ash removal assembly is installed at the bottom of the preheating pipe. The air inlet pipe passes through the preheating pipe and is connected to the kiln body. A cleaning assembly for cleaning the outer wall of the air inlet pipe and the filter screen is installed inside the preheating pipe. This kiln can preheat the oxygen-enriched combustion flow using hot flue gas, thereby improving combustion efficiency and combustion temperature. Furthermore, it utilizes the residual heat in the hot flue gas, improving energy utilization efficiency. By incorporating the cleaning assembly and the ash removal assembly, the kiln can clean and discharge dust and impurities adhering to the outer wall of the air inlet pipe and the filter screen.

An industrial combustor capable of improving combustion efficiency belongs to the technical field of combustor equipment and comprises a combustor body, a fan, a valve, an air extractor, a thermoelectric battery pack, a flow meter, an oxyhydrogen machine, an electromagnetic valve, a detection circuit and a turbulent flow mixing mechanism. The thermoelectric battery pack is mounted on the outer side of a waste gas discharge flue of the stove; the turbulent flow mixing mechanism is installed in a mixing box of the burner body, one ends of two valves are connected with the outer side of a gas pipe and the outer side of an air pipe of the mixing box respectively, the other end of one valve is connected with a gas pipeline, and the other end of the other valve is connected with an exhaust pipe of an air extractor and one end of an electromagnetic valve respectively. The other end of the electromagnetic valve is connected with an exhaust pipe of the fan; an air inlet pipe of the air extractor is connected with an exhaust pipe of the flowmeter; an air inlet pipe of the flowmeter is connected with an oxygen pipe of the oxyhydrogen machine; the detection circuit is installed in the electric control box and electrically connected with the electric control box. According to the novel gas burner, the mixing effect of gas and air is improved, the combustion efficiency of mixed gas is improved, and energy is correspondingly saved.

The invention relates to the technical field of waste incineration, in particular to a method for controlling the primary air temperature of a waste incinerator, which specifically comprises the following steps of: (1) calculating the water content Mar of garbage entering the incinerator according to the real-time water vapor content phi of flue gas at an outlet of a waste heat boiler; (2) calculating the required primary air temperature T0 according to the water content Mar of the garbage fed into the furnace; (3) arranging an electromagnetic valve and a flow measuring point Q on a steam pipeline entering the air pre-heater, and arranging a temperature measuring point T at a primary air outlet of the air pre-heater; according to the calculated primary air temperature T0, the opening degree of an electromagnetic valve is automatically adjusted to adjust the steam amount for heating the primary air pre-heater; and when the outlet temperature measuring point T of the air pre-heater is adjusted to be within the range of T0 + / -5 DEG C, the electromagnetic valve stops adjusting, and the steam quantity for heating the air pre-heater does not change any more. According to the method, the primary air temperature is controlled and adjusted through the steam content of the exhaust gas at the outlet of the waste heat boiler, and therefore the good combustion condition of garbage in the incinerator is guaranteed.

The utility model relates to the technical field of boilers, in particular to an industrial boiler reburning chamber furnace arch device which comprises an outer frame body, a reburning chamber is arranged on the inner side of the outer frame body, water cooling wall faces are fixedly installed at the left end and the right end of the inner wall of the reburning chamber respectively, and a front arch is fixedly installed at one end of each water cooling wall face. A rear arch is fixedly installed at the other end of the water cooling wall face, flame openings are formed in the base face of the outer frame body and the base face of the reburning chamber, a hearth is fixedly installed at the bottom end of the inner wall of the reburning chamber, a groove is formed in the top end of the hearth, and a ventilation opening is formed in the left end of the outer frame body. A supporting frame is fixedly installed on the side, close to the ventilation opening, of the left end of the outer frame body, and a storage disc is arranged at the bottom end of the inner wall of the reburning chamber, the reburning chamber, the water cooling wall face, the front arch, the rear arch, the flame opening, the furnace hearth, the water pipe, the draught fan and the air supply pipe are arranged, so that the burning temperature and the burning efficiency are improved, and practicability is enhanced.

The invention relates to a heat insulation cover for a stove and a gas stove using the heat insulation cover for a stove, comprising a cover body surrounded by a central hole, the cover body comprising a double-layer structure consisting of an upper cover and a middle cover, a cavity is formed between the upper cover and the middle cover, and also comprises a lower cover located below the middle cover, the bottom wall of the lower cover at least partially has at least two vertical preheating plates distributed along the circumferential direction at intervals, the lower cover is provided with an air supply port for supplying air to a burner located in the central hole at a position corresponding to the vertical preheating plates. Compared with the prior art, the advantage of the invention is that the heat insulation cover comprises an annular cover body, the cover body is a double-layer structure consisting of an upper cover, a middle cover and a lower cover, a cavity is formed between the upper cover and the middle cover, so that the upper cover can be blocked from transferring heat downward to the middle cover, and the middle cover gathers the radiant heat energy in the combustion process of the burner and conducts it downward to the vertical preheating plates, so as to preheat the air entering through the air supply port.

The invention relates to an ammonia gas oxygen-enriched high-pressure combustion experiment system, which comprises an oxygen supply system for supplying a specific amount of pure oxygen; the compressed air supply system is used for providing compressed air; the air electric heater is used for preheating the mixed compressed air and pure oxygen; the ammonia gas supply system is used for supplying a specific amount of ammonia gas and mixing the ammonia gas with the preheated compressed air and pure oxygen gas; and the combustion chamber is used for reacting and combusting the ammonia gas, the compressed air and the pure oxygen mixed gas, and the side wall of the combustion chamber is further connected with the other strand of compressed air in the compressed air supply system, so that cooling and heat exchange are achieved. The device is compact and reasonable in structure and convenient to operate, and stable combustion and efficient utilization of ammonia gas under high-pressure and oxygen-enriched conditions are achieved by accurately controlling gas flow and pressure and adopting measures such as an oxygen-enriched combustion technology and a secondary cooling air system.

The utility model discloses a gasification slag treatment waste gas purification mechanism which comprises a multi-phase reactor, a cooler is arranged on the right side of the multi-phase reactor, a desulfurization device is arranged on the right side of the cooler, and a natural gas anti-flame-off device is fixedly installed on the inner bottom wall of the multi-phase reactor. A denitration device is fixedly installed on the upper surface of the multi-phase reactor, a calcium spraying device is arranged in the multi-phase reactor, the top end of the calcium spraying device is fixedly communicated with the input end of the denitration device, and the output end of the denitration device is fixedly communicated with a first exhaust pipe. The bottom end of the first exhaust pipe is fixedly communicated with the input end of a cooler, the output end of the cooler is fixedly communicated with a second exhaust pipe, and the end, away from the cooler, of the second exhaust pipe is fixedly communicated with the input end of the desulfurization device. The waste gas purification mechanism for gasified slag treatment can efficiently purify waste gas generated during incineration of gasified slag, and pollution of the discharged waste gas to the air environment is reduced.

The utility model relates to the technical field of waste metal processing, and provides a high-temperature calcining furnace for waste metal processing, which comprises a heating box and a protective cover fixed on the outer surface of one side of the heating box, the limiting groove is formed in the inner wall of the side, close to the protective cover, of the heating box; the two-way screw rod is embedded in the inner wall of the heating box in a threaded mode, and clamping fixing rods are embedded in the outer surfaces of the opposite positions of the two-way screw rod in a threaded mode; and a cylinder. A user rotates the bidirectional screw rod on the inner wall of the heating box to drive the clamping and fixing rod on the outer surface of the bidirectional screw rod to move relatively, so that waste metal is positioned, and when the user is connected with a power supply of the air cylinder on the inner wall of the heating box, the air cylinder is started to work and drives the forging block on the surface of the output end to move; and therefore, continuous forging work is carried out when the waste metal is heated, impurities in the waste metal are reduced, and the quality of the machined waste metal is improved.

The invention belongs to the technical field of solid composite propellant recovery, and particularly relates to a crushing method of a waste solid composite propellant. The preparation method comprises the following steps: firstly, generating a composite precipitate of ferric hydroxide and aluminum hydroxide by using ferric trichloride hexahydrate and aluminum trichloride hexahydrate, filtering and washing the precipitate, mixing and ball-milling with carbon nanotubes and ethanol, and finally calcining to obtain the nano composite grinding aid. After the nano composite grinding aid is prepared into suspension liquid, the suspension liquid and the waste solid composite propellant are jointly crushed and screened, and crushed solid composite propellant particles can be obtained through separation. The prepared nano composite grinding aid can improve the performance of the propellant, the crushing method is particularly suitable for combustion recovery of the waste solid composite propellant, and in the combustion recovery process, the recovery heat value and the energy utilization rate of the propellant can be remarkably increased by enhancing the combustion efficiency and energy release.

The invention belongs to the technical field of heating furnaces, and particularly relates to an oxygen-fuel combustion system and method suitable for a heating furnace. Air is separated into oxygen and nitrogen through an air separator, the oxygen passes through a control valve and a flow meter, fuel gas passes through the control valve and the flow meter and is conveyed to a heating furnace through a special pipeline, the fuel gas and the oxygen are subjected to non-premixed combustion, the heating furnace is divided into a preheating section, a heating section and a soaking section, and the temperature of each section is accurately controlled by adjusting a burner. Flue gas firstly passes through the residual oxygen detector to detect the oxygen concentration, then enters the waste heat boiler to recover heat, then is cooled by the cooler, and finally enters the carbon dioxide trapping device under the pushing of the fan. Flameless combustion in the furnace is achieved through oxygen-fuel combustion, the radiation heat exchange intensity in the furnace is improved, combustion is more uniform, waste heat is recycled through the waste heat boiler, the energy utilization rate is increased, and carbon emission is reduced through the carbon dioxide capturing and storing device.

The present invention relates to the technical field of artificial rainmaking devices, and specifically to an aircraft engine rainmaking system and an aircraft. The aircraft engine rainmaking system comprises: an external exhaust device, which is sleeved on the outside of an internal exhaust device; an air bleed port, which is located in the transition area between the combustion chamber and the compressor; a first air bleed branch, which extends to the area sandwiched by the external exhaust device and the internal exhaust device, and the first part of the bleed air is mixed with the high-temperature combustion gas; a second air bleed branch, which extends into the supercharging device, and the second part of the bleed air pushes the rainmaking fuel into the nozzle; a third air bleed branch, which extends into the nozzle, and the nozzle mixes the third part of the bleed air with the rainmaking fuel to spray out combustible gas mist, and the ignition device ignites the combustible gas mist. The aircraft engine rainmaking system provided by the present invention, by setting an artificial rainmaking system relying on the aircraft engine, realizes the single-time single-way long-term operation of the artificial rainmaking aircraft, excellent catalyst combustion effect, free operation position, and flight is not affected by the rainmaking device.

The invention relates to the technical field of medical supplies, in particular to a smokeless moxa cone formula for soothing the nerves and treating dizziness and headache and a preparation process. Angelica sinensis, radix paeoniae rubra, ligusticum wallichii, astragalus membranaceus, notopterygium root, radix paeoniae alba, salvia miltiorrhiza, radix angelicae pubescentis, divaricate saposhnikovia root, the root of kudzu vine, caulis spatholobi, schizonepeta, prepared rehmannia root, gastrodia elata, himalayan teasel root and liquorice are pretreated to obtain a mixed medicinal material; the moxa carbon and the mixed medicinal materials are stirred and mixed in an equivalent incremental mode, and a semi-finished product is obtained; preparing a binder; and adding a binder into the semi-finished product, stirring, pressing in a mold, drying, and packaging to obtain the smokeless moxa cone. The smokeless moxa cone is based on the traditional Chinese medicine theory, is prepared by combining the traditional moxa stick experience and the modern science and technology, has the advantages of treatment effect and low smoke and high combustion temperature of the traditional moxa stick, and has good stability and applicability by standardizing the technological process, so that the problem that the existing moxa stick is high in moxa smoke is solved.