45 results about "Pyrolant" patented technology

The invention discloses a coal gangue-based solid fuel which comprises pulverized coal, coal gangue particles, a binder, a combustion improver and a sulfur-fixing agent. After the combustion improver prepared by the method disclosed by the invention is added into the solid fuel, the ignition point of the fuel can be obviously reduced, the flammability index of the fuel is improved, and the combustion performance of the solid fuel is greatly improved.

The invention discloses a multi-stage pulse targeted staged fracturing method. The method comprises the following steps: preparing work; constructing a fishbone well; tripping in a bridge plug; a required amount of combustion improver is filled into the throwing bin body on the ground, the fire blast bin body is vacuumized, and then a fire blast fracturing tool is put into the throwing bin body; enabling the combustion improver to quickly enter the combustion and explosion bin body by using high-pressure nitrogen to be mixed with methane to form combustion improver-methane mixed gas, and further completing the in-situ manufacturing process of the combustion and explosion fracturing bomb; the electric control connecting buckle is controlled to act, so that the blasting bin body is separated from the throwing bin body; after the separation and arrangement of the explosion bins of the multi-stage tool are completed, the packer is expanded and set in the target branch well section, and a closed explosion fracturing well section is formed between the set packer and the drillable bridge plug; and the ignition electrode is controlled to conduct ignition operation so as to detonate combustion improver-methane mixed gas in the fire blast fracturing bomb, and the explosion propagation process from outside to inside along the shaft is completed in a sympathetic detonation mode. By means of the method, multi-stage sectional type fire blast fracturing operation of the fractured well section can be achieved.

The invention relates to the technical field of metal material surface modification, in particular to AlCrCuMoNi high-entropy alloy powder with high temperature, wear resistance, corrosion resistance and good heat conduction, a coating and a preparation method thereof.The high-entropy alloy powder with the particle size being 15-45 microns and suitable for thermal spraying is prepared through a mechanical alloying method, and then the high-entropy alloy powder is prepared through an oxygen-kerosene supersonic flame spraying technology; the preparation method comprises the following steps: spraying high-entropy alloy powder on the surface of a key part matrix by taking high-entropy alloy as a matrix, oxygen as a combustion improver, kerosene as a fuel, high-purity nitrogen as a powder feeding carrier gas and air as a cooling medium to prepare an AlCrCuMoNi HEA coating; al, Cr, Cu, Mo and Ni elementary substance powder is subjected to ball milling according to the required molar ratio through a mechanical alloying method, AlCrCuMoNi HEA powder is obtained, the coating is prepared through the hypersonic flame spraying technology, the method is suitable for improving the high-temperature abrasion resistance and hot corrosion resistance of the surfaces of key parts in the industries of energy, metallurgy, chemical engineering and the like, and the service life of boiler pipes is prolonged.

The application discloses a natural gas combustion spray gun for a large glass furnace, which comprises a coaxially arranged outer sleeve and an inner sleeve; a flow guide column is fixed at the front end of the inner sleeve, and an arc-shaped flow guide groove is formed in the circumferential surface of the flow guide column; a blind hole is formed at the front end of the flow guide column, and a third flow guide hole is formed in the flow guide column and is communicated with the arc-shaped flow guide groove and the blind hole; a second flow guide hole and a first flow guide hole are sequentially formed at the front end of the inner sleeve from front to back, and the second flow guide hole and the first flow guide hole are directed to the arc-shaped flow guide groove on the flow guide column; a heat insulation sleeve is sleeved at the front end of the outer sleeve, and a positioning ring is fixed in the inner part of the front end of the outer sleeve; a plurality of turbulence columns are uniformly fixed at the front end of the flow guide column and pass through the positioning holes in the positioning ring. The flow guide column is arranged at the front end of the inner sleeve, and the turbulence column is arranged at the nozzle position, so that the mixing area is enlarged, the atomization effect of the natural gas on the ethylene tar is improved, the fuel and the combustion-supporting agent are fully mixed, the fuel utilization rate is improved, and the heat radiation effect in the furnace is improved.

The invention discloses a low-energy laser combustion improver and a safe ignition method. The combustion improver comprises the following raw materials in percentage by weight: 1-5wt% of phosphorus-containing ligand, 3-8wt% of sulfur-containing ligand, 1-3wt% of metal nickel salt, 1-5wt% of accelerant and the balance of organic solvent. The invention provides a low-energy laser combustion improver and a safe ignition method, the low-energy laser combustion improver can ignite an object to be ignited through low-energy laser at a certain interval at a lower environment temperature, so that the ignition safety of explosives is improved, and the low-energy laser combustion improver can also be used in activities such as performance, magic and celebration; the combustion improver is simple and easy to prepare, free of tedious procedures and harsh conditions, capable of being prepared in an amplified mode, convenient to industrialize, relatively low in price and suitable for popularization.

The invention discloses a method for preparing Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 system scheelite type red fluorescent powder by a combustion method, Sr (NO3) 2, Ba (NO3) 2 and (NH4) 6Mo7O14. 4H2O are used as reaction raw materials, Pr < 3 + > is used as rare earth ion doping, citric acid is used as a combustion improver, and the Sr < 0.6 > Ba < 0.4-x > MoO4: xPr < 3 + > fluorescent powder is synthesized by combustion. A combustion method is adopted for synthesis, the advantages of being low in reaction temperature, short in time and small in synthesized sample particle are achieved, and the Sr0. 6Ba < 0.4-x > MoO4: xPr < 3 + >, yPEG-200 red fluorescent powder synthesized through the experiment is high in luminescence performance and can be used as red fluorescent powder for a white light LED. According to the invention, the surfactant PEG-200 is added to improve the morphology of the sample and enhance the luminescence property of the sample, and the trivalent praseodymium ions are doped in the molybdate with the scheelite structure, so that the luminescent material has high emission intensity in a dark red region.

The invention discloses a foam curtain generation and performance characterization device and method and application. The device comprises a foam curtain injection system used for generating a foam curtain, a combustion system used for heating the foam curtain and a motion capture system used for capturing the motion trail of the foam curtain. The foam curtain injection system comprises a foam mixed liquid tank body, a pump body and a foam curtain injector, the pump body is arranged between the foam mixed liquid tank body and the foam curtain injector, and the pump body is connected with the foam curtain injector through a pipeline; the combustion system comprises a combustion gas cylinder, a combustion improver cylinder, a combustion mixer and a combustor, the combustion gas cylinder and the combustion improver cylinder are respectively connected with the input end of the combustion mixer through pipelines, and the combustor is connected with the output end of the combustion mixer. The device can monitor the motion trail of the marking section foam curtain in real time and control the angle of combustion flame, so that the marking section foam curtain receives heat radiation all the time, the actual working condition is simulated more truly, and the actual heat insulation effect is reflected.

An apparatus (1) for the burning of waste sand by an electric stove (3a) that does not require combustion improvers comprises an electric burning device (3) and a first separator (6) as well as a flow diverter (7). The electric fire pyrolyzer (3) guides electric fire flames (3b) of the electric fire stove (3a) through the first airflow (2) to pyrolyze the waste sand (4) so that waste sand sticking substances can be decomposed. The first separator (6) separates waste sand from the first gas stream (2). A flow diverter (7) directs the first gas stream (2) from the first separator (6) to the electric fire pyrolyzer (3).

The present application relates to a kind of incineration device and method for gas under low concentration oxygen content combustion-supporting agent, including strong swirl burner, special combustion chamber;Strong swirl burner is annular structure, for providing the wall-attached rotating mixed jet of swirl intensity not less than 1, from inside to outside respectively for first stage gas lance, first stage air pipe, second stage gas lance, second stage air pipe and shell;Special combustion chamber is cylindrical furnace, for forming the high-temperature backflow flue gas filled in the center area of special combustion chamber, and the special combustion chamber entrance is docked with the outlet of strong swirl burner.Wall-attached rotating mixed jet is mixed and heated by high-temperature backflow flue gas, reaches reaction temperature, flows along the inner wall surface of special combustion chamber and reacts and releases heat, when reaches the outlet of special combustion chamber, a part of backflow is formed closed loop as the pilot light source of strong swirl burner, realizes the stable incineration of gas under low concentration oxygen content combustion-supporting agent, reaches the effect of reducing combustion temperature and reducing thermal NOx.

This invention discloses an electrolytic water hydrogen-oxygen welding and cutting device, relating to the field of flame welding and cutting technology. The device includes a reaction assembly, a movable base, and a support assembly. It further includes: a shell mounted on the support assembly, containing an inner tube for hydrogen delivery; a sleeve on the outer side of the inner tube; a gap between the sleeve and the inner tube forming an oxygen delivery chamber; and a gap between the sleeve and the shell forming a cooling chamber; and a connector fixed to the lower end of the shell, containing an annular cavity communicating with the cooling chamber; and an outlet nozzle installed at the bottom of the connector. Through the coaxially nested inner tube, sleeve, and shell, hydrogen delivery, oxygen delivery, and water mist are isolated, achieving complete physical separation of fuel, combustion aid, and cooling medium during the delivery stage. This fundamentally eliminates the risk of pre-mixing combustible gases within the pipeline, strictly limiting the mixing point to a safe area outside the welding nozzle, significantly improving the safety level during equipment use.

The invention relates to the field of continuous hot galvanizing production, in particular to a method for recycling oxygen-rich waste gas and flue gas, which comprises the following steps: step 1, step 2, step 3, step 4, step 5, step 6 and step 7. According to the device, oxygen-rich byproduct gas can be subjected to recycling, mixing and pressure equalizing treatment, the oxygen content of the recycled oxygen-rich byproduct gas is accurately detected, the total combustion improver flow value is calculated and determined through the flow value, the flue gas circulation flow value and the component detection value of the flue gas circulation flow value, automatic adjustment of the electric proportional valve is achieved, and the combustion efficiency is improved. According to the method, the oxygen-rich byproduct gas is applied to the continuous hot galvanizing annealing furnace, oxygen-rich combustion, energy conservation and efficient waste gas recycling are achieved, and the method has the advantages that the oxygen-rich byproduct gas is applied to the continuous hot galvanizing annealing furnace, so that oxygen-rich combustion is achieved, energy is saved, and waste gas is recycled and reused efficiently; meanwhile, low-temperature preheating of natural gas can be achieved, the fuel utilization rate is increased, the production cost is reduced, and energy saving can be achieved.

The utility model discloses a dumping type smelter smoke collecting mechanism, which relates to the technical field of smelter smoke collection, and comprises a supporting seat, the inner side of the supporting seat is rotatably connected with a smelter for smelting metal, the top end of the supporting seat is connected with a collecting cover for collecting harmful gas through a fixing rod, and a limiting mechanism arranged on the supporting seat and the collecting cover; the limiting mechanism comprises a transmission unit and a reset unit; the transmission unit is used for releasing understanding limitation between the supporting seat and the collecting cover; the reset unit is used for providing reset elastic force for movement of the transmission unit. By arranging the limiting mechanism, when a combustion improver and metal need to be added into the smelting furnace, dissipated harmful gas can be absorbed through the collecting cover on the supporting seat, connection between the supporting seat and the collecting cover can be quickly released by applying downward pressure to the pressing rod, the interior of the collecting cover can be conveniently cleaned, and a filter screen can be conveniently replaced; and the working efficiency is further improved.

The invention discloses a thickened oil development method for breaking through a fireflooding interlayer based on a combustion improver with stratum adsorbability. Selecting a heavy oil reservoir, identifying and confirming a low-permeability interlayer area, and delimiting a target injection area and an injection well group; injecting a combustion improver composition with stratum adsorbability into the interlayer area, and after adsorption is completed, implementing front air pre-injection to activate and catalyze the oxidation capacity of the combustion improver; an ignition agent is continuously injected through the gas injection well to initiate an in-situ combustion reaction; gas injection is maintained, parameters such as combustion temperature and product components are monitored, and stable propulsion of the combustion front edge is controlled. The combustion improver composition comprises an oxidant, a combustion improver, an inorganic catalyst, a catalyst with stratum adsorbability, an emulsifier / surfactant, a polymer adsorbent, a solvent and a pH regulator. The stratum adsorbability of the combustion improver is improved, the combustion improver is enriched at the adsorption site of the interlayer part, high-temperature and high-pressure reaction is generated after ignition, the interlayer structure is broken through, and heat channel breaking through and stable combustion wave propelling are achieved.

This invention belongs to the field of burner technology, specifically disclosing a burner that sprays colored flames, including a base plate and a storage tank. The storage tank is installed on the right side of the top of the base plate, and multiple sets of feed valves are installed on the surface of the storage tank. The interior of the storage tank has multiple cavities. Flow control valves are installed on the front, back, left, and right sides of the top of the storage tank, and suction pipes are installed inside the flow control valves. This burner that sprays colored flames solves the problem of a single flame color by spraying different colored flames through the multiple cavities inside the storage tank and the feed valves around it. A certain proportion of metal solution and oxygen-enriched gas containing combustion aid is injected into different cavities through the feed valves around the tank. By activating different flow control valves, a certain proportion of metal solution and oxygen-enriched gas is introduced into a mixing tank for storage through a disc, a material pump, and a conveying pipe.

To provide a sterilization system of infectious waste that is easy to spread, a combustion improver, production equipment of the combustion improver, a production method of the combustion improver, and a sterilization system of the infectious waste.SOLUTION: A discharge process management method 360 comprises a container selling history step 360A, a delivery history step 360B, a sterilization process history step 360C, a notification step 360D, an ingot recovery history step 360E, a combustion improver production history step 360F, a carbon dioxide reduction amount calculation step 360G, a carbon dioxide reduction amount association step 360H, a contribution calculation step 360J, a contribution association step 360K, a combustion improver delivery history step 360L and a combustion improver usage history step 360M.SELECTED DRAWING: Figure 13

The application belongs to the technical field of burners, and particularly relates to an energy-saving burner which comprises a burner main body, a fixing frame, an obliquely arranged pipe, a heating reaction pipe, a feeding box, a quantitative feeding mechanism and a discharging mechanism, the outer wall of one side of the burner main body is connected with the fixing frame which is fixedly arranged; the obliquely arranged pipe is fixedly arranged on the fixing frame; the heating reaction pipe is fixedly arranged on the obliquely arranged pipe; the feeding box is fixedly arranged on the obliquely arranged pipe, and the feeding box is internally provided with a combustion-supporting agent; the quantitative feeding mechanism is slidingly arranged on the inner wall of the obliquely arranged pipe, and can realize quantitative feeding of potassium permanganate; and the discharging mechanism is slidingly arranged in the heating reaction pipe. The combustion-supporting agent in the heating reaction pipe can be heated and reacted by the waste heat of the burner when the burner sprays fire, so that oxygen can be generated and delivered into the burner through the oxygen delivery pipeline, thereby effectively solving the technical problems in the prior art, realizing sufficient combustion of fuel, and achieving the effect of energy saving.

The present invention relates to the field of industrial heating, and particularly to a hot air generating device for a low-temperature tempering furnace. The technical problem to be solved is to overcome the disadvantages of waste of heat from exhaust gas and unstable hot air temperature. The technical solution is as follows: It includes a first housing, a second housing is fixedly connected to one side of the first housing in a communicating manner, an air outlet is provided on one side of the second housing, an installation hole is provided on the other side of the first housing, and a T-shaped cylinder is fixedly connected to one end of the installation hole. A high-speed nozzle is fixedly connected to one end of the T-shaped cylinder, a heat insulation plate is sleeved outside the high-speed nozzle, and a spark head is arranged on one side of the high-speed nozzle. The beneficial effect of the present invention is that the direction of the exhaust gas is guided by the wind baffle and the diversion plate, the combustible substances in the exhaust gas are ignited at the high-speed nozzle through the spiral air passage of the ventilation ring, the basic temperature of the fuel gas and the combustion-supporting agent is increased by using the heat of the exhaust gas itself, the fuel gas required to generate high-temperature gas is reduced, and the utilization rate of the fuel gas is improved.

This invention relates to a flame burner for use in an SOFC system. It includes a first pipe and a second pipe, with the first pipe fitted over the upper opening of the second pipe. The first pipe contains a combustion chamber, and the second pipe contains a swirl plate connected to its upper opening. The swirl plate has an oxidizer hole communicating with the cathode exhaust gas of the combustion-supporting agent and a fuel hole communicating with the anode exhaust gas of the combustible material. The oxidizer hole and fuel hole are respectively connected to the combustion chamber. The oxidizer hole includes sidewall swirl holes and planar groove-shaped swirl holes, with opposite swirl directions. An ignition needle extending into the combustion chamber is provided on the swirl plate. This invention increases the residence time of fuel in the combustion chamber through the sidewall swirl holes and planar groove-shaped swirl holes, preventing direct contact between the high-temperature combustion zone and the combustion chamber wall. The sidewall swirl holes employ a large-angle inward swirl to avoid fuel dispersion, and the area distribution controls the equivalence ratio of the main combustion zone to approximately 1.

A burner (1) for generating a flame for a heat generating system, comprising a fuel supply line (3) and at least one combustion-supporting agent intake system, both operatively connected to a combustion head (2) for supplying a fuel flow and a combustion-supporting agent flow, respectively, to said burner (1). The burner (1) comprises a turbogas unit having an auxiliary combustion chamber (6) in which combustion takes place and for generating and downstream conveying a flow of fumes, and a turbine (7) activated by the fumes generated by the auxiliary combustion chamber (6). In particular, the turbine (7) is operatively active to at least partially contribute to the movement of the fuel in said combustion-supporting agent supply system (4).

The invention discloses a combustion explosion fracturing anti-reflection device which is applied to an L-shaped drilling well (200) in a reservoir stratum, the L-shaped drilling well (200) comprises a vertical well section (201) and a horizontal well section (202), the anti-reflection device (100) comprises a first gas injection pump station (110), a second gas injection pump station (110) and a third gas injection pump station (110), the first gas injection pump station (110) is communicated with the L-shaped drilling well (200) through a first gas injection guide pipe (111) and is configured to inject oxygen-methane mixed gas containing combustion improvers into the horizontal well section (202) of the L-shaped drilling well (200); the at least one burning and explosion assembly (120) comprises an impacting mechanism (121) and a charging chamber (122), a mixture of sodium chlorate and aluminum powder is loaded in the charging chamber (122), the impacting mechanism (121) is arranged close to the charging chamber (122), and the impacting mechanism (121) is configured to be used for impacting the charging chamber (122) and generating explosion to generate fracturing in the L-shaped drilling well (200).

The present invention discloses a porous double-layer air-cooled downhole high-temperature ignition tool, which includes an ignition tool housing. An installation edge is provided on the ignition tool housing, and an oxygen delivery pipe is connected in the middle of the installation edge. Electric ignition rods, a combustion promoter delivery pipe, a vaporized water delivery pipe, and a thermocouple installation sleeve are installed on the circumference of the oxygen delivery pipe and penetrate through to the ignition tool housing. An ignition rod sleeve is sleeved on the outer end of the electric ignition rod. A double-layer cooling interlayer is arranged in the inner cavity of the ignition tool housing. The ignition rod sleeve is communicated with the cooling cavity in the inner cavity of the ignition tool housing. Low-temperature air flows out from the gap between the ignition rod sleeve and the electric ignition rod to form a protective gas film around the electric ignition rod. A number of cooling holes are opened on the surface of the ignition tool housing, and low-temperature oxygen sprays out from the cooling holes to form a protective gas film. An air guiding pocket is arranged inside the ignition tool housing to introduce the low-temperature air in the oxygen delivery pipe into the inner cavity to form a cooling gas film on the outer surface of the housing. This ignition tool reduces the working temperature and can work reliably at 1800 °C.

To appropriately quantify CO2 fixed in combustion ash.SOLUTION: A CO2 quantification apparatus for combustion ash supplies a combustion aid to combustion ash 2 housed in a sample holder 3, maintains the combustion ash 2 at a first predetermined temperature for a first predetermined time and starts replacement of the atmosphere inside the sample holder 3 to N2 gas, heats the combustion ash 2 to a second predetermined temperature after the predetermined replacement time for stabilization to temperature rise has passed, gasifies CO2 gas fixed in the combustion ash 2 inside the sample holder 3 which has been replaced with N2 gas during the process of heating to the second predetermined temperature, and measures CO2 concentration by transporting the gasified CO2 by N2 gas to quantification means 8.SELECTED DRAWING: Figure 1

This invention relates to the field of carbonaceous material reactor technology, specifically to a slag melter, comprising: a combustion aid distribution ring, which is a pipe arranged in a ring around the outer periphery of a discharger; a first pipe connected to the combustion aid distribution ring to introduce combustion aid; a gas-liquid fuel distribution ring, which is a pipe arranged in a ring around the outer periphery of the discharger; a second pipe connected to the gas-liquid fuel distribution ring to introduce gas-liquid fuel; multiple burners connected to both the combustion aid distribution ring and the gas-liquid fuel distribution ring; the multiple burners generate flames and high-temperature flue gas, which, in conjunction with the discharger, agitate, mix, oxidize, heat, and lift inorganic residues to produce molten liquid inorganic residues; this application distributes gas-liquid fuels and combustion aids as needed, fully mixes and combusts them, generates a stable high-temperature flame to agitate the inorganic residues according to operational needs, and adjusts the temperature of the inorganic residues, maintaining the slag level of the inorganic residues and ensuring smooth discharge.

The utility model discloses a straight-through type tunnel kiln which comprises a first lifting track frame, a preheating tunnel kiln, a main firing tunnel kiln, a low-nitrogen combustion device, a cooling tunnel kiln, a second lifting track frame and a controller. The first lifting track frame and the second lifting track frame are the same in structure. The first lifting track frame, the preheating tunnel kiln, the main firing tunnel kiln, the cooling tunnel kiln and the second lifting track frame are connected in sequence; the low-nitrogen combustion device is arranged on the main firing tunnel kiln; the low-nitrogen combustion device comprises a combustible supply pipe, a combustion improver supply pipe, a gas mixer and a circulating combustor; the other end of the combustible agent supply pipe and the other end of the combustion improver supply pipe are hermetically connected with the upper end of the gas mixer; the lower end of the gas mixer is hermetically connected with the circulating combustor; and the gas mixer and the circulating combustor can guide suspended matters in the kiln to be fully mixed and combusted. The straight-through tunnel kiln solves the problems that the emission amount of NOx of a straight-through kiln is large, and fired articles are inconvenient to transport.

The application discloses a palladium type carbon monoxide combustion improver, which comprises a modified carrier and an active component, the modified carrier is prepared by mixing and modifying gamma-alumina and modified silicon dioxide, and the active component is a palladium metal. The preparation steps are as follows: S1. modified carrier preparation: after plasma treatment of gamma-alumina and modified silicon dioxide, additives, a surfactant and deionized water are added, ultrasonic treatment, drying and calcination are carried out; S2. preparation of a precursor solution: a soluble salt of the palladium metal is mixed with a nitric acid solution and dissolved; S3. preparation of a combustion improver finished product: the modified carrier and the active palladium metal precursor solution are ultrasonically treated, spray dried, kept at 450-500 DEG C, and reduced at 300-320 DEG C to obtain the combustion improver finished product. The palladium type carbon monoxide combustion improver prepared by the application has high activity, can improve the carbon monoxide conversion rate, reduce the content of nitrogen oxides, and has a simple preparation method and is suitable for large-scale popularization and use.

The utility model relates to an ignition device, and relates to the field of plasma ignition devices, the ignition device comprises a gas inlet pipe, a plasma generator and an auxiliary mechanism, the plasma generator penetrates through the gas inlet pipe and is fixed on the gas inlet pipe, the auxiliary mechanism is arranged in the gas inlet pipe, and the auxiliary mechanism is used for introducing a combustion improver into the gas inlet pipe. The plasma ignition device has the effect that the waste gas ignition efficiency of the plasma ignition device is improved.

A multi-stage pulse target section fracturing method, preparation work; Constructing fishbone well; Lowering bridge plug; Ground to the delivery bin body into the required amount of combustion improver, and vacuum treatment to the explosion bin body, then lowering the explosion fracturing tool; Using high pressure nitrogen to make combustion improver rapidly enter the explosion bin body and mix with methane to form combustion improver-methane mixed gas, and then complete the in-situ production process of explosion fracturing bomb; Control the action of electric control connection buckle to separate the explosion bin body from the delivery bin body; After the separation and arrangement of the multi-stage tool explosion bin are completed, the packer is expanded and set in the target branch well section, forming a closed explosion fracturing well section between the set packer and the drillable bridge plug; Control the ignition electrode to perform ignition operation to detonate the combustion improver-methane mixed gas in the explosion fracturing bomb, and complete the transmission process from outside to inside along the wellbore by the way of sympathetic detonation. The method can realize multi-stage segmented explosion fracturing operation of the fracturing well section.

The application discloses a combustion device and belongs to the technical field of blast furnace ironmaking. The combustion device comprises a fuel channel with a fuel inlet and a fuel cavity, the fuel inlet is communicated with the fuel cavity, and the fuel inlet is used for passing fuel into the fuel cavity; a baffle channel is arranged at one end of the fuel cavity away from the fuel inlet and is obliquely arranged towards the middle part of the fuel channel; an auxiliary combustion channel has an auxiliary combustion agent inlet and an auxiliary combustion cavity, the auxiliary combustion agent inlet and the auxiliary combustion agent outlet are communicated with the auxiliary combustion cavity; a mixing channel has a combustion cavity, the fuel channel is communicated with the combustion cavity through the baffle channel, and the auxiliary combustion channel is communicated with the combustion cavity, so that the fuel and the auxiliary combustion agent are mixed in the combustion cavity. The baffle channel is obliquely arranged towards the middle part of the fuel channel, when the fuel passes through the baffle channel and enters the combustion cavity, the outlet of the baffle channel becomes smaller, so that the fuel can be uniformly mixed with the auxiliary combustion agent, the situation that a large amount of carbon monoxide is contained in flue gas after combustion due to insufficient combustion is reduced, and the harm of the flue gas is reduced.

A burner (100) comprises a combustion unit (20) configured to receive a comburent fluid and a combustible fluid, and to convey them towards a combustion head (21) in order to mix them with each other so as to generate a flame. The combustion unit (20) comprises a plurality of combustion heads (21) independent from each other and supplied individually by means respectively of a first and a second supply conduit (30a, 30b) of the combustible fluid separate from each other; and configured to convey towards each combustion head (21) respectively a first and a second combustible fluid different to each other, so as to obtain controlled combustion in the same burner (100) of a plurality of combustible fluids different to each other.

The invention discloses a palladium-type carbon monoxide combustion improver which comprises a modified carrier and an active component, the modified carrier is prepared by mixing and modifying gamma-aluminum oxide and modified silicon dioxide, and the active component is palladium metal. The preparation method comprises the following steps: S1, preparing a modified carrier: performing plasma treatment on gamma-aluminum oxide and modified silicon dioxide, adding an auxiliary agent, a surfactant and deionized water, performing ultrasonic treatment, drying and calcining; s2, preparation of a precursor solution: mixing and dissolving palladium metal soluble salt and a nitric acid solution; s3, preparation of a combustion improver finished product: performing ultrasonic treatment and spray drying on the modified carrier and the active palladium metal precursor solution, preserving heat at 450-500 DEG C, and reducing at 300-320 DEG C to obtain the combustion improver finished product. The palladium-type carbon monoxide combustion improver prepared by the invention is high in activity, can improve the conversion rate of carbon monoxide and reduce the content of nitrogen oxides, and is simple in preparation method and suitable for large-scale popularization and application.