1663results about "Combustion apparatus" patented technology

The invention discloses a multi-stage gas inlet type hydrogen catalytic combustion system and method, and the system comprises a hydrogen supply part, an air supply part, a mixed gas pressure detection part, a mixed gas humidity detection part, a mixed gas hydrogen concentration detection part, a hydrogen catalytic combustion reactor, a branch gas supply part and a post-reaction hydrogen concentration detection part, the air supply component and the hydrogen supply component are connected in parallel and then connected to the hydrogen catalytic combustion reactor through a mixing pipeline, the hydrogen catalytic combustion reactor comprises multiple stages of catalytic reaction cavities which are sequentially distributed from the head end to the tail end, and each catalytic reaction cavity is connected with a branch air supply component. The branch gas supply components are further connected to the hydrogen supply component through branch pipelines, the gas inlet amount of each branch gas supply component is adjustable, the mixing pipeline is communicated with the branch gas supply components through branch connecting pipelines, and a mixed gas pressure detection component, a mixed gas humidity detection component and a mixed gas hydrogen concentration detection component are arranged on the mixing pipeline.

The invention relates to a burner (10) for an exhaust tract through which exhaust gas from an internal combustion engine flows, comprising a combustion chamber (12) in which a mixture comprising air and fuel is to be ignited and thereby combusted, comprising an inner swirl chamber (18) through which a first part of the air flows, which has a first swirl-generating device (38) by means of which a swirl-shaped flow of the first part of the air can be effected, and a first outlet opening (20) through which the first part of the air flows, and comprising an outer swirl chamber (28) surrounding at least a longitudinal region of the inner swirl chamber (18) in the circumferential direction of the inner swirl chamber (18), through which a second part of the air flows, which has a second swirl-generating device (40) by means of which a swirl-shaped flow of the second part of the air can be effected,and has a second outlet opening (32) through which the second part of the air flows and the first part of the air flows through the inner swirl chamber (18) and the first outlet opening (20).

A wood pellet patio heater having a rocket stove with a replaceable cartridge, secondary air control, and a heat reflector is described. The rocket stove having the replaceable cartridge of the wood pellet patio heater provides increased efficiency (i.e. less consumption of fuel over time). The secondary air control of the wood pellet patio heater facilitates combustion, and thus provides temperature control, where temperature control will require varying amounts of air depending on the quality of the fuel source. The heat dome provides increased heat profile.

The invention discloses a high-temperature ammonia burner based on ammonia catalytic cracking hydrogen production and liquid ammonia atomization combustion and an operation method thereof, high-temperature air generated by a grate cooler is introduced into a catalytic cracking device, heat of the high-temperature air is utilized to promote liquid ammonia gasification, activate a catalyst and promote ammonia catalytic cracking to generate hydrogen, and ammonia, nitrogen and hydrogen mixed gas is formed; the reaction activity of the fuel is improved; medium-temperature air and mixed gas generated by the catalytic cracking device are supplied to the first to fifth gas inlets respectively, stable on-duty flames are formed under the action of a sliding arc, then the mixed gas introduced into the fourth gas inlet is ignited to form main combustion flames, high-temperature and active components generated by the main combustion flames promote liquid ammonia atomization, and the liquid ammonia atomization effect is improved. And the liquid ammonia is ignited to form axial graded flames. According to the invention, ammonia catalytic cracking hydrogen production and high-temperature air are fully utilized, the flame stability and temperature are improved, stable combustion of large-flow liquid ammonia can be maintained, and the problems of low flame temperature, difficult ammonia ignition, unstable combustion and the like are effectively solved.

Device for monitoring and controlling the high-temperature corrosion of water-cooled walls of a wall-like cut-circle boiler, characterized in that it comprises the following: a creation module for a meshed model, which serves to obtain a structure of the water-cooled wall of the wall-like circular boiler and to create a meshed model based on the structure of the water-cooled wall of the wall-like circular boiler; a creation module for a correlation model, which serves to obtain real-time parameters of the water-cooled wall of the wall-like circular vessel and to create a correlation model corresponding to the real-time parameters in combination with the networked model; a creation module for a three-dimensional model, which serves to simulate with the CFD data and the corresponding model in order to obtain the three-dimensional model of the temperature field and the CO field in the combustion chamber; a detection module for opening angles, which serves to obtain the deflection angles of various primary air nozzles and secondary air nozzles at different air volumes within the temperature field in the combustion chamber and the flap openings at different air volumes within the CO field on the basis of the three-dimensional models of the temperature field and the CO field of the combustion chamber; an adjustment module for deflection angles, which serves to obtain the optimal deflection angles of the primary air nozzles and the secondary air nozzles for the real-time air volume and the current temperature field in the combustion chamber based on the temperature and the real-time air volume at the appearance of the flame wall brushing in the boiler; an adjustment module for damper openings, which serves to obtain an optimal damper opening for the real-time air volume and the current CO field based on the CO concentration and the real-time air volume in the boiler.

To efficiently recover carbon dioxide from exhaust gas generated through incineration while suppressing energy consumption.SOLUTION: A waste incineration system includes: an incinerator for burning waste while conveying the waste in the combustion chamber with a fire grate; dust removal means for removing dust from exhaust gas discharged from the incinerator; mixed gas supply means for supplying mixed gas obtained by mixing gas containing oxygen and part of exhaust gas from which dust has been removed by the dust removal means to the combustion chamber; cleaning means for cleaning the exhaust gas from which dust has been removed by the dust removal means; and liquefaction means for directly liquefying carbon dioxide included in the exhaust gas cleaned by the cleaning means without interposing a device for separation and recovery.SELECTED DRAWING: Figure 1

Provided is a boiler in which an ammonia fuel burner (110) has an atomizer (111) that guides ammonia fuel toward a furnace along a second axis (X2) and injects the ammonia fuel from a tip (111a), and the injection amount of ammonia fuel injected from the tip (111a) to one side closer to the center of the furnace than the second axis (X2) is greater than the injection amount of ammonia fuel injected from a plurality of second injection holes (111a2) to the other side closer to the wall surface of the furnace than the second axis (X2).

The invention discloses a flue gas compensation type pulverized coal wide-load stable combustion system based on staged combustion and intelligent regulation and control and a control method, and belongs to the technical field of coal-fired power generation. The system is composed of a combustor, an intelligent control module and a flue gas backflow module, the combustor adopts a double-ring fuel channel design, an inner ring injects high-concentration pulverized coal and is provided with an adjustable swirler, and pulverized coal-flue gas mixed airflow is introduced into an outer ring; the intelligent control module predicts a load through an LSTM neural network, and realizes accurate matching of air and coal in combination with PID adjustment; and the flue gas backflow module adopts an oxygen concentration adjustable technology to maintain the combustion intensity. Under the working condition of 30%-40% low load, the system achieves the stable combustion effect that the flame center temperature is stabilized at 920 + / -20 DEG C by means of optimizing the proportion of inner ring pulverized coal to 75%-85%, increasing the primary air temperature to 145-170 DEG C, compressing the proportion of secondary air to 20%-30%, strengthening a swirling flow field to 45 degrees and the like in cooperation with flue gas backflow with the oxygen concentration of 23%-25%, and has the advantages of efficient combustion and low emission.

The invention relates to the technical field of plasma generator protection, and discloses a plasma generator protection device which comprises a plasma generator provided with a mounting seat and a spray gun extending into a combustion chamber; the sleeve sleeves the spray gun and is used for replacing the spray gun to bear the scouring of primary air pulverized coal airflow in the combustion chamber; the powder slag cleaning part comprises a scraping plate, the length direction of the scraping plate is consistent with the length direction of the spray gun, and the scraping plate is attached to the periphery of the sleeve; the scraping plate is driven by an annular driving mechanism to rotate along the circumferential track of the outer surface of the sleeve, the movement path of the scraping plate is tightly attached to the outer circumferential face of the sleeve, and the rotation axis of the scraping plate coincides with the geometric axis of the sleeve, so that powder slag generated after hot melting of the surface of the sleeve is removed. Pulverized coal airflow scouring is blocked through the sleeve, powder slag is cleaned in combination with the annular driving scraper, the heat dissipation performance of the spray gun is guaranteed, the service life of the spray gun is remarkably prolonged, the maintenance cost is reduced, and the operation stability and economical efficiency of equipment are improved.

The invention discloses a rapid cold start flameless combustion furnace and a control method, and relates to the technical field of combustion equipment.The rapid cold start flameless combustion furnace comprises a combustion furnace body and an inductance heating assembly, a combustion cavity is formed in the combustion furnace body, and the combustion cavity is provided with an air jet nozzle, a fuel nozzle and a tail gas exhaust port; the air jet nozzle and the fuel nozzle are oppositely distributed on the two opposite sides of the combustion cavity and arranged in an opposite jet mode, and the furnace wall of the combustion cavity is a metal component. The inductance heating assembly comprises an inductance coil spirally surrounding the periphery of the combustion furnace body, and the area surrounded by the inductance coil corresponds to the combustion cavity. According to the flameless combustion furnace, the furnace wall of the combustion cavity which is a metal component is heated through the inductance coil, so that the temperature in the combustion cavity is rapidly increased, the temperature of the furnace wall of the combustion cavity is higher than the spontaneous combustion temperature of fuel, the fuel is ignited, and rapid cold start and stable combustion of the flameless combustion furnace are achieved.

System for determining the amount of sludge added to the boiler based on a coupled neural BP network, characterized in that it comprises the following: a creation module for the networked model of the combustion chamber, which serves to obtain a detailed structure of the denitrification system and the desulfurization system in the boiler, and to create a networked model of the combustion chamber based on the detailed structure of the denitrification system and the desulfurization system; a measurement module for the temperature field of the combustion chamber, which serves to create a relevant model for different coal qualities in the combustion chamber according to the networked model of the combustion chamber and in combination with the real-time data of the denitrification system and the desulfurization system, and to introduce CFD simulation values ​​into the relevant model and to simulate in order to obtain a temperature field of the combustion chamber; a denitrification efficiency acquisition module that serves to combine the detailed structure of the denitrification system with the temperature field of the combustion chamber and to obtain the denitrification efficiency and the NOx emission index within the framework of the 3D model; a measurement module for desulfurization efficiency, which serves to combine the detailed structure of the desulfurization system with the temperature field of the combustion chamber and to obtain the desulfurization efficiency and the SO2 emission index within the framework of the 3D model; a NOx dosing quantity module that serves to obtain the criterion for the minimum NOx emission value during boiler denitrification and the critical criterion for the NOx emission value with increasing sludge dosing quantity based on the denitrification efficiency and the NOx emission index within the framework of the 3D model, and to compare the different temperatures of the boiler chamber with the criterion of the minimum NOx emission value and the critical criterion of the NOx emission value with increasing sludge dosing quantity and to obtain the maximum regulated sludge dosing quantity corresponding to the NOx emission value; an SO2 dosing quantity module, which serves to obtain the criterion for the minimum SO2 emission value during the denitrification of the boiler and the critical criterion for the SO2 emission value with increasing sludge dosing quantity based on the desulfurization efficiency and the SO2 emission index within the framework of the 3D model, and to compare the different temperatures of the boiler chamber with the criterion of the minimum SO2 emission value and the critical criterion of the SO2 emission value with increasing sludge dosing quantity, and to obtain the maximum regulated sludge dosing quantity corresponding to the SO2 emission value; a model processing module that serves to train the maximum regulated sludge dosing quantity corresponding to the NOx emission value and the maximum regulated sludge dosing quantity corresponding to the SO2 emission value through a neural BP network and to obtain the maximum sludge dosing quantity of the boiler.

A system (100) for roasting coffee particles is described, comprising: a combustion chamber (1) capable of heating air; a rotating drum (3) for roasting coffee particles; a first connecting duct (4) between the combustion chamber (1) and the rotating drum (3) for allowing hot air to travel from the combustion chamber (1) to the rotating drum (3) along a feed direction (V); a decanting cyclone separator (8) connected to the rotating drum (3) by a second duct (9) to receive a hot air flow mixed with air and / or solid impurities from the rotating drum (3) and formed during roasting; the system (100) also includes a tubular body (10) having two channels (11, 12) positioned on the first connecting duct (4) between the combustion chamber (1) and the rotating drum (3); the tubular body (10) is equipped with a first valve (13) and a second valve (14) to change the temperature of the mixed air flow entering the rotating drum (3).

To provide a burner and an ammonia mixed combustion boiler capable of promoting combustion of ammonia and reducing generation of unburned ammonia.SOLUTION: A burner 10 includes: a first fuel flow passage L1 for supplying first fuel F1 of which combustion speed is higher than that of ammonia; a first air flow passage L2 for supplying first combustion air A1; an ammonia flow passage L3 for supplying ammonia F2; a second air flow passage L4 for supplying second combustion air A2; a first fuel ejection part 15 that ejects the first fuel F1; a first air ejection part 16 that ejects the first combustion air A1; an ammonia ejection part 17 that ejects the ammonia F2; and a second air ejection part 18 that ejects the second combustion air A2. The first fuel ejection part 15 is disposed upstream of the ammonia ejection part 17, and burns at least part of the first fuel F1 in a space surrounded by the ammonia flow passage L3.SELECTED DRAWING: Figure 1

The invention provides a deep peak regulation method for a coal-fired unit, relates to the technical field of thermal power generation, and can solve the problem of low-load flame shift, stabilize the combustion core and inhibit the fluctuation of NOx emission concentration by dynamically regulating and controlling a combustion field in a boiler. The energy storage system and the boiler are configured for cooperative operation, the energy storage system is used for rapidly transferring / releasing heat energy, the limitation of the heat storage rate of the boiler is broken through, the two-way peak regulation capacity and the regulation speed of the coal-fired unit in the load reducing stage and the load increasing stage can be remarkably improved, and therefore the boiler efficiency is improved under the low load, and the station service power consumption rate is reduced. By constructing an intelligent control system in communication connection with the DCS, automatic control can be realized.

A burner includes a first pulverized coal entrained fluid flow conduit; an inner hydrogen conduit; and a hydrogen oxidant conduit located between the first pulverized coal entrained fluid flow conduit and the inner hydrogen conduit; an outlet of the inner hydrogen conduit is located at a first distance from an outlet of the hydrogen oxidant conduit such that hydrogen output from the outlet of the inner hydrogen conduit reaches the outlet of the hydrogen oxidant conduit through a portion of the hydrogen oxidant conduit; the outlet of the hydrogen oxidant conduit is a second distance away from the outlet of the first pulverized coal entrained fluid flow conduit; the first pulverized coal entrained fluid flow conduit is configured such that the hydrogen and the hydrogen oxidant output from the outlet of the hydrogen oxidant conduit pass through a portion of the first pulverized coal entrained fluid flow conduit to be output from the burner.

The invention relates to a chemical looping combustion variable load system based on flue gas recirculation and a control method. The system comprises a chemical looping combustion system and a flue gas recirculation system (7), the chemical looping combustion system comprises an air reactor (1), a fuel reactor (2), an AR cyclone separator (3), an FR cyclone separator (4), an AR material return device (5), an FR material return device (6), an air supply system (8) and a fuel supply system (9). By controlling the flow and temperature of recirculated flue gas of the flue gas recirculating system and cooperatively controlling the opening degree of the conical valve and the circulating flux of the system, the load of the chemical looping combustion system is flexibly adjusted, the energy consumption is reduced, the efficiency is improved, and the operation cost is reduced; and the rest high-temperature flue gas enters a flue gas treatment system to be treated, high-purity CO2 gas is obtained after heat exchange, condensation and purification, and finally efficient combustion of fuel and low-energy-consumption carbon capture are achieved.

The invention belongs to the technical field of biomass fuel boilers, and particularly relates to a boiler body structure of a whole-bundle straw combustion gasification coupling combustion heat supply boiler, which comprises a boiler body, the side wall of the boiler body is hollow and is filled with a thermal insulation material, a smoke exhaust pipe is arranged at the top of the boiler body, and a fuel chamber is arranged in the boiler body. A heat supply pipe and a fuel input assembly are arranged on the side wall of the furnace body, and the fuel input assembly is used for continuously feeding a whole bundle of straw into the fuel chamber; due to the fact that carbonized semi-coke materials are prone to being broken to generate a large amount of powder materials, and the powder materials are prone to being attached to the inner wall of a feeding pipe and the inner wall of a feeding screw in the conveying process of the feeding pipe, conveying of the semi-coke materials in the feeding pipe is not smooth, and normal proceeding of straw participating in work of a heat supply boiler is affected. According to the feeding device, by arranging the cleaning assembly, semi-coke materials possibly attached to the inner wall of the feeding pipe are effectively cleaned, the semi-coke materials are promoted to fall off from the inner wall of the feeding pipe, then the semi-coke materials are gathered into the moving semi-coke materials under the action of the feeding screw, and normal proceeding of the feeding process is achieved.

The present invention relates to a novel CLC plant and to a novel CLC method employing a cyclone oxidation reactor to oxidize the oxygen carrier.

The present invention relates to the technical field of flue gas heat recovery. Particularly disclosed is a flue gas heat recycling structure for a combustion furnace, comprising: a flue dust filtering part, which comprises a flue dust pipe and a dust removal box connected to one end of the flue dust pipe, a filter screen mechanism used for filtering flue dust being mounted in the dust removal box; a flue gas high-temperature recycling part, comprising a water tank, a heat exchange assembly using the temperature of flue gas to heat a water source being mounted in the water tank; and an anti-acid dew part, mounted on the flue gas high-temperature recycling part and used for raising the temperature of flue gas and maintaining the temperature of outlet water. The flue dust filtering part of the present invention effectively cleans a filter screen in real time, so as to ensure the flue gas permeability of the filter screen, thus eliminating the need for manual cleaning and reducing maintenance costs. Meanwhile, cleaning actions are driven by the gas flow of flue gas, thus eliminating the need for extra energy consumption and achieving better practical effects. The anti-acid dew part uses part of high-temperature flue gas to raise the temperature of low-temperature flue gas, such that the discharge temperature thereof is higher than the condensation temperature of acid mist, thus avoiding generation of acid dew, and reducing damages to apparatuses caused by acid dew.

A process for reducing the environmental contaminants in a ISO 8217 compliant Feedstock Heavy Marine Fuel Oil, the process involving: mixing a quantity of the Feedstock Heavy Marine Fuel Oil with a quantity of Activating Gas mixture to give a feedstock mixture; contacting the feedstock mixture with one or more catalysts to form a Process Mixture from the feedstock mixture; separating the Product Heavy Marine Fuel Oil liquid components of the Process Mixture from the gaseous components and by-product hydrocarbon components of the Process Mixture and, discharging the Product Heavy Marine Fuel Oil. The Product Heavy Marine Fuel Oil is compliant with ISO 8217 for residual marine fuel oils and has a sulfur level has a maximum sulfur content (ISO 14596 or ISO 8754) between the range of 0.05% wt. to 0.5% wt. The Product Heavy Marine Fuel Oil can be used as or as a blending stock for an ISO 8217 compliant, IMO MARPOL Annex VI (revised) compliant low sulfur or ultralow sulfur heavy marine fuel oil. A device for conducting the process is also disclosed.

Device for drying material for an asphalt mixing plant, the device (2, 3) comprising a rotary kiln (9) which can be driven to rotate about a rotational axis (19) and in which the material is dried, the rotary kiln (9) having a material inlet (10) and a material outlet (11), b. a heating unit coupled to the rotary kiln (9) for supplying heat to the rotary kiln (9), the heating unit being designed with a burner (12) having i. a burner housing (27) having a longitudinal axis (26), ii. an air line (16) arranged on the burner housing (27) for supplying air, wherein the air line (16) is arranged axially to the longitudinal axis (26) on the burner housing (27), iii. an air blower (29) arranged in the air line (16, 28), iv. a burner head (41) arranged on the burner housing (27) for generating a burner flame (13), v. a hydrogen gas line (14) connected to the burner (12) for supplying hydrogen gas into the burner (12), wherein a hydrogen gas nozzle (31) for discharging the hydrogen gas is connected to the hydrogen gas line (14), characterized in that c. the burner (12) is designed to be operated either exclusively by means of hydrogen gas or by means of hydrogen gas and secondary fuel, d. the burner (12) has a swirling element (35) for swirling the air in the burner (12) relative to the longitudinal axis (26), e. the swirling element (35) comprises a flow guide element in the burner housing (27), wherein the flow guide element is arranged immovably in the burner housing (27), f. the flow guide element is arranged concentrically to the longitudinal axis (26) and is designed as a baffle plate having a plurality of blades (53, 54) arranged in a circle with respect to the longitudinal axis (26) and oriented at an inclination, g. the heating unit comprises a hot gas generator (24) connected to the burner (12) which is connected to the rotary kiln (9) by means of a hot gas line (25).

The invention provides a method for optimizing an integrated coal gasification combined cycle process by utilizing solar energy. The method comprises the following steps: generating hydrogen and oxygen through photovoltaic electrolysis of water; the dead steam / oxygen mixed gas is heated through fused salt generated through photo-thermal; the coal gasifier is heated through fused salt generated through photo-thermal; carrying out pre-combustion carbon capture on the cooled synthesis gas through an MOF material with a photoinduced structural transformation property; the synthesis gas subjected to carbon capture in the combustion chamber and the other part of oxygen are subjected to pure oxygen combustion; and cooling the flue gas for carbon capture after combustion. According to the method, the operation load fluctuation, the energy consumption and the carbon capture cost of the coal gasification combined cycle process are reduced, and the overall economy is improved.

The invention belongs to the technical field of incinerator equipment, and particularly relates to a small household garbage incinerator and a using method.The incinerator comprises a drying pyrolysis chamber and a combustion chamber which are arranged on a fire grate set of the garbage incinerator; the upper part of the combustion chamber is communicated with a secondary combustion chamber; a pyrolysis gas nozzle is arranged at the upper part of the combustion chamber; a drying pyrolysis chamber outlet flue with an induced draft fan is arranged close to the upper end of the drying pyrolysis chamber, and the drying pyrolysis chamber outlet flue is connected to a pyrolysis gas nozzle through a condenser; a drainage chamber is arranged between the same side of the combustion chamber and the secondary combustion chamber and the drying pyrolysis chamber, and the drying pyrolysis chamber is longitudinally provided with a smoke nozzle communicated with the drainage chamber. A secondary combustion chamber outlet flue and a circulating flue are arranged at the top of the secondary combustion chamber, the circulating flue is communicated with the drainage chamber, and a guide plate for adjusting the flue gas amount is arranged in the top of the secondary combustion chamber. According to the method, the water content of the garbage entering the incinerator can be reduced, the heat value of the garbage can be increased, the temperature of 850 DEG C / 2 s can be met without afterburning in the incinerator, meanwhile, the garbage can be homogenized before entering the incinerator, and it is guaranteed that the temperature and load fluctuation of the incinerator is small, garbage combustion is sufficient, and the ignition loss of slag is low.

The invention belongs to the technical field of low-nitrogen combustors, and discloses an ammonia-doped hydrogen-doped low-nitrogen coal-fired boiler and a working method thereof.Each corner of a corner tangential boiler body is provided with a plurality of primary air nozzles in the height direction of a main combustion area, the primary air nozzles are provided with stable combustion teeth, and the stable combustion teeth are used for transversely dividing primary air into a thick part and a thin part; a concentrated phase is arranged inside, and a light phase is arranged outside; an ammonia-doped and hydrogen-doped nozzle is arranged above and / or below each primary air nozzle; and each corner of the four-corner tangential boiler body is provided with an over-fire air nozzle in the over-fire air area. By controlling supply of air, fire coal, ammonia and hydrogen fuel, the combustion process is carried out in stages, and generation of nitric oxide is effectively reduced.

The present disclosure relates to a burner control system, comprising a controller, a burner connectable to a combustible gas supply and comprising a controllable valve coupled to the controller, an optical sensor arranged at the burner and coupled to the controller, wherein the controller is configured to determine a use state of the burner, from a group of use states comprising at least an ignition state, based on a measurement signal of the optical sensor that is indicative for a light level corresponding to said use state, and to selectively control the controllable valve in dependency of said use state of the burner.

To provide a burner capable of suppressing combustion deterioration of pulverized fuel when pulverized fuel and ammonia are mixed and burned, a boiler, and a combustion method.SOLUTION: A burner comprises: a pulverized fuel supply pipe that guides pulverized fuel and primary air for transporting the pulverized fuel to a furnace; a first gaseous ammonia supply pipe that supplies gaseous ammonia to the pulverized fuel supply pipe; and a mixed fuel nozzle that ejects a mixture of the pulverized fuel, the gaseous ammonia, and the primary air from the pulverized fuel supply pipe into the furnace. The burner is configured such that a ratio of an amount of the gaseous ammonia to a total amount of the pulverized fuel and the gaseous ammonia supplied to the furnace through the mixed fuel nozzle is 10% or less on a calorific value basis.SELECTED DRAWING: Figure 3

The invention discloses an adjusting method and device for reducing high-temperature corrosion of a water cooling wall of an opposed firing boiler, and the method comprises the steps: testing the sulfur content of coal as fired, and controlling the sulfur content of the coal as fired; the opening degree or the rotating speed and the ventilation quantity of a baffle of a separator of the coal mill are adjusted, and the primary air speed, the pulverized coal fineness and the uniformity index value of each layer of combustor are adjusted to be within the required range; the boiler operation oxygen amount, the opening degree of a secondary air box and the opening degree of an over-fire air door are adjusted, and the excess air coefficient of a main combustor area is controlled; the opening degree of internal and external secondary air and the rotational flow strength of a main combustor of the boiler are adjusted, a secondary air door in the combustor is fully opened, the rotational flow angle of the internal secondary air is adjusted to be minimum, the rotational flow angle of the external secondary air of the combustor close to two side walls is adjusted to be smaller, and meanwhile the external secondary air volume is increased. After adjustment, pulverized coal airflow deflection wall-attaching combustion is relieved, air supply in the initial stage of combustion is increased, H2S generation is reduced, and meanwhile the air supply amount of a flowing dead zone of the opposed firing boiler and the isolation capacity of a wall-attaching air film on pulverized coal airflow deflection wall-attaching are also increased.

The invention relates to a variable-power scale-free boiler and topology heat transfer quasi-super Stirling ecological heat engine technology, in particular to a working principle of direct-current scale-free super heat exchange high power density reaching 8-16 times fuel oil stress application variable power in the ZL2012105664497.4 patent achievement innovation field of the inventor, and the working principle is applied to normal low pressure, middle high pressure, critical pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure, high pressure and high pressure. Various types of boilers are free of scale obstruction, super in heat exchange, high in power density, ultra-low in cost rate, and safe in multi-module unit combination of less than 30-90L; a boiler heat exchange heat output'boiler 'system formed by connecting ten to hundreds of congruent module (tube panel) units in parallel is integrally matched with a magnesium catalysis water-based combustion-supporting combustion science'boiler' system of a '8-16 times fuel oil stress application 'Stirling'heat engine', and meanwhile, a new era of human cosmic rock planet carbon dioxide and carbon rock particle energy ecological metallurgy is created. The invention relates to a Stirling ecological heat engine, in particular to a variable-power scale-free multi-module once-through boiler and a topology heat transfer Stirling ecological heat engine, wherein the variable-power scale-free multi-module once-through boiler and the topology heat transfer Stirling ecological heat engine are used for gathering metamorphosis heat radiation and a three-guide interlining heat transfer and exchange body heat output system under the constraint of extreme-effect

The invention discloses a device and method for denitrification by co-combustion of microwave-activated coke. The device includes a coal feeding hopper and a furnace. Coal is input onto a chain grate, and the coal cinder after combustion enters an ash hopper. The flue gas flows out through the outlet flue of the chain grate. The tail of the outlet flue of the chain grate is connected to the outlet flue of a dust collector, and a dust collector is arranged on the outlet flue of the dust collector. The tail of the outlet flue of the dust collector is respectively connected to a draft fan and a flue gas recirculation flue. Part of the flue gas flows out through the draft fan, and the other part of the flue gas enters the flue gas recirculation flue. A feeder on the flue gas recirculation flue inputs coke into the flue. The coke is mixed with the flue gas and then enters a microwave generator. The reacted coke is sprayed into the furnace through a coke spray gun. The ability of coke to reduce nitrogen oxides is improved by the microwave activation effect, and then the reacted coke is sprayed into the high-temperature and low-oxygen space in the furnace. While the coke is cyclically burned out, nitrogen oxides are also removed, and no secondary pollution to the environment will be caused.

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.