1268results about "Solid fuel combustion" patented technology

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 an automatic straw bale feeding device which can be used for smoke dust removal and straw drying at the same time. The device enables straw bales (8) to be continuously dried in a straw bale dust removal and drying feeding bin (4) using hot air or waste heat smoke from a combustion system (1) or other sources, and the waste heat smoke is simultaneously dust removed and purified by the straw bales (8). Straw bales are put into and transported from a straw bale transport device A (13) at the front to a straw bale transport device B (14) at the rear, and dried and smoke dust removed at an air blowing opening (28). The dried straw bales enter a straw bale push bin (2) through a straw bale locking bin (3) and are finally sent to a combustion system (1). New straw bales are reloaded through a straw bale dust removal and drying feeding bin (4) which is provided with two pivot doors (9, 11), connected to the straw bale locking bin (3) and includes two straw bale transport devices.

The invention relates to a heating furnace, in particular to a biomass fuel furnace capable of automatically removing slag, which comprises a combustion chamber, an upper auger, a lower auger and a feed hopper. The automatic slag removing device is characterized in that a slag falling opening is formed in the bottom of the combustion chamber, a slag discharging plate is arranged below the combustion chamber, and a cylindrical cam is arranged between the first motor and the auger and controls the slag discharging plate to reciprocate so as to automatically remove slag. Compared with the prior art, automatic slag removal is achieved, and fire can be prevented from spreading reversely.

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 discloses a biomass blending combustion coal-fired power generation system and method based on low-temperature aerobic upgrading. The system comprises a biomass bin, and a crushing unit is arranged at a discharge port of the biomass bin; the discharging end of the crushing unit is sequentially connected with a low-temperature aerobic upgrading device, a coal bunker unit and a coal mill through a conveying mechanism; the coal mill is connected with a coal-fired boiler, and the coal-fired boiler is provided with an SCR reactor; a heat source inlet of the low-temperature aerobic upgrading device is connected to a tail flue behind the SCR reactor, and tail flue gas of the SCR reactor is used for heating; tail gas of the low-temperature aerobic upgrading device is conveyed to the coal-fired boiler through the centrifugal fan to be combusted and purified, and the system achieves real-time monitoring and control through the central control system and the monitoring unit. According to the invention, high-efficiency and low-cost treatment can be carried out on the biomass, the problems of moisture content, high volatile components, grindability and the like of the biomass are effectively improved while the high energy recovery rate is reserved, and large-scale stable blending combustion of the biomass in a large coal-fired boiler is realized.

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 invention belongs to the field of fossil energy combustion and energy conservation and emission reduction, and relates to a fossil energy combustion pollutant resource utilization and zero emission system which comprises an air separation device, an oxygen-enriched combustion system, a dust removal device, a desulfurization device, a water treatment device and a CO2 recovery device. According to the scheme provided by the invention, inhalable particles and nitrogen oxides generated by fossil energy combustion can be greatly reduced, carbon dioxide and sulfides generated by fossil energy combustion are comprehensively recycled, and zero emission of combustion pollutants is realized.

The invention discloses an air preheating biomass boiler, belongs to the technical field of boilers, and aims to solve the problems of low combustion efficiency, insufficient flue gas waste heat utilization and particulate matter emission of a traditional biomass boiler. Function optimization is achieved through a main body structure composed of a furnace body, a charging barrel and a rotating pipe, a double-spiral-disc heat exchange assembly is arranged in the charging barrel, biomass fuel is preheated through boiler exhaust smoke waste heat, meanwhile, smoke is discharged through exhaust holes after being distributed through spiral disc gas storage cavities, and unburned particles are filtered by a biomass layer and carried to a hearth to be subjected to secondary combustion; an air inlet cavity is formed in the rotating pipe, and air is preheated through the fixed pipe and the first connecting pipe and then input into the hearth. The exhaust assembly adopts a sliding rod and sealing block matched structure, and a convex block mechanism driven by a rotating pipe drives the sealing block to periodically move, so that gas in the charging barrel is intermittently exhausted through a double-layer filter screen. According to the boiler, the heat efficiency is improved through a smoke-air two-way preheating and particulate matter secondary combustion mechanism, and the biomass preheating, air heating and emission treatment process is optimized.

To provide a combustible material incineration facility equipped with one or more air injection devices having air injection ports that forcibly inject air or heated air toward the combustion section in order to incinerate combustible materials at high temperature and high speed. [Solution] The combustible material incineration equipment 100 of the present invention comprises a combustible material incineration stand 30 having a combustible material incineration stand surface 10 formed with a space between it and the ground and made of a plurality of steel materials 12 arranged at intervals, and left and right inclined stand sections 20 equipped with rod-shaped members arranged in a V-shape when viewed from the side so as to extend on both sides and upward, the rod-shaped members of the left and right inclined stand sections 20 being at least one of sliding, foldable and detachable, or a combination thereof, so that the protruding length can be adjusted, and the combustible material incineration equipment 100 is equipped with an air injection device 40 arranged around the combustible material incineration stand 20 and forcibly injecting air or heated air toward the combustible material burning section on the combustible material incineration stand surface 10.

A flow channel controller of a visual solid propellant high-pressure combustion device relates to the technical field of solid propellant high-pressure combustion devices and comprises an annular cylinder, a middle cavity of the annular cylinder is a central circulation channel, and the wall of the annular cylinder is composed of a plurality of flow channel controller concave parts and flow channel controller convex parts which are alternately and annularly distributed in sequence; the concave part of the flow channel controller forms circulating backflow flow channels, and each circulating backflow flow channel is communicated with the central circulation channel; the flow channel controller protruding part is used for changing the flowing direction of internal circulation gas, and the interior of the flow channel controller protruding part is a hollow groove body used for reducing weight. After the internal circulation flowing gas impacts the upper flange end cover of the high-pressure combustion chamber, the airflow flowing area is adjusted through the flow channel controller, and the situation that particles carried by the internal circulation flowing gas affect the observation view range is avoided.

The present invention relates to an improved auger system for delivering combustible material to a burn box within a cooker, such as a grill or smoker. The invention features a pivotable coupling between the auger shaft and the drive motor, enabling the auger to adjust its alignment within the tube to accommodate irregularly shaped materials, thus minimizing jamming and improving the consistency of material delivery. In some embodiments, the system also incorporates a mechanism to prevent material bridging in the hopper, ensuring the continuous flow of material into the auger tube as well as an auger cover flap pivotably mounted at the outlet end of an auger tube, which is configured to control the flow of combustible material from the auger tube into the burn box.

The invention discloses a visualized solid propellant high-pressure combustion turbulence device and a using method, and relates to the technical field of solid propellant high-pressure combustion devices.The high-pressure combustion turbulence device comprises a visualized high-pressure combustion chamber, a particle filtering device, an electric heating wire ignition system, a combustion turbulence device body, a flow channel controller and a medicine strip clamp; the medicine strip clamp is used for fixing a solid propellant medicine strip and reducing shaking of the solid propellant medicine strip; gas is introduced into the high-pressure combustion chamber to create different environmental pressures, and after the heating wire ignites the solid propellant, the combustion phenomenon is observed through four visual windows which are perpendicular to one another; the flow channel controller can prevent combustion condensed phase particles carried by airflow generated by the speed-adjustable fan from affecting the observation range of the window, and finally the condensed phase particles are filtered through the particle filtering device to purify internal circulation flowing gas. The device is reasonable in structure, has the characteristics of stability and reliability, and can effectively solve the problem that smoke particles are unfavorable for observation of the combustion phenomenon when the solid propellant is combusted.

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 discloses a direct blowing type biomass burner, and relates to the technical field of biomass boilers or coal-fired boilers for mixed combustion of biomass. The problems that according to an existing biomass and coal co-combustion burner, biomass is prone to blockage, ignition stability is poor, burnout is low, and NOx emission is unstable are solved. A perturbed air pipe, a stable combustion air pipe and a combustion nozzle are sequentially connected end to end, the tail end of a conveying pipe is coaxially inserted into the perturbed air pipe and the stable combustion air pipe, the tail end of the conveying pipe is connected with a necking pipe, the tail end of the necking pipe extends into the combustion nozzle, and a partition annular plate is arranged in the joint of the perturbed air pipe and the stable combustion air pipe. The tail end of the perturbed air pipe is connected with a perturbed air inlet pipe, a dispersed perturbed air inlet is formed in the pipe section, extending into the perturbed air pipe, of the conveying pipe, a dispersed perturbed air pipe is inserted into the dispersed perturbed air inlet, the stable combustion air pipe is provided with a stable combustion air inlet, and a stable combustion air inlet pipe is inserted into the stable combustion air inlet. The biomass burner can be directly applied to a large coal-fired boiler.

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.

The utility model relates to the technical field of energy conservation and environmental protection, in particular to a biomass particle steam generator. The utility model provides a biomass particle steam generator which can shake and flatten biomass particles, avoid accumulation of the biomass particles and improve the combustion efficiency of the biomass particles. A biomass particle steam generator comprises a combustion chamber, a first motor and the like, and the left side of the lower portion of the combustion chamber is connected with the first motor. A second motor is started to drive a belt pulley to rotate, so that a flat belt rotates, then a rotating column is driven to rotate, the rotating column shifts a placing plate, the placing plate moves left and right, a spring is restored after deformation, and then biomass particles are flattened, so that the biomass particles can be flattened in a shaking manner; and accumulation of biomass particles is avoided, and the combustion efficiency of the biomass particles is improved.

The utility model relates to the field of electric power technology, and discloses a waste heat recovery device for a power plant based on an absorption heat pump, comprising a recovery tank; an air duct and a water duct are arranged inside the recovery tank, and the air duct is located inside the water duct; the waste heat recovery device for a power plant based on the absorption heat pump can increase the contact time between cooling water and high-temperature exhaust gas by installing the cooperation of the water duct and the air duct, so that the high-temperature exhaust gas can be uniformly absorbed, and the water flow can be made to flow in a vortex shape by the cooperation of a stirring plate, so that the water flow can be uniformly contacted with the water duct, and the cooperation of a circulating water pump can make the cooling water with a higher temperature flow back into the recovery pipe, accelerate the heat absorption speed and enable the cooling water to heat up quickly, and the nitrogen oxide control agent can be sprayed during the rotation of the atomizing nozzle by installing the atomizing nozzle, and the cooperation with the mixing plate can make the atomizing nozzle uniformly contact with the exhaust gas in the purification tank, thereby improving the treatment efficiency of the exhaust gas.

The invention provides a biomass gasification and new energy electrolysis hydrogen production coupled green alcohol production co-combustion system and method, and belongs to the technical field of coal power unit carbon reduction, and the system comprises a new energy power generation device used for generating electric energy; the water electrolysis hydrogen production device is used for generating H2 and O2 based on the water and the electric energy generated by the new energy power generation device; the biomass gasification device is used for gasifying biomass based on the air and O2 generated by the water electrolysis hydrogen production device to generate CO and H2; the methanol production device is used for generating methanol based on CO and H2 generated by the biomass gasification device and H2 generated by the water electrolysis hydrogen production device; and the hearth combustion device is used for carrying out blending combustion based on methanol generated by the methanol production device. According to the scheme, the carbon emission generated in the power generation process of the coal-fired power generation unit can be reduced.

The present application relates to solid waste treatment technical field, especially a reciprocating mechanical grate furnace and grate jam determination processing method, real-time collection of the motion parameters of the reciprocating grate; based on the above motion parameters, in the automatic mode operation process, the grate jam determination module determines whether the sliding grate of each stage occurs jam failure; if it is determined that the jam failure occurs, the system switches to the automatic emergency processing mode operation, and the grate jam automatic emergency processing module automatically handles the jam failure; when the factors of the jam failure disappear, the motion mode of the sliding grate of this stage is switched to the automatic mode, and the grate jam flag is automatically reset; the reciprocating grate jam is determined, and appropriate automatic emergency processing is made, the influence of mechanical jam caused by metal parts, bricks and stones and the like on the stable and continuous operation of the reciprocating grate furnace is reduced, and the comprehensive benefits of general industrial solid waste treatment plants are improved.

A burner process for iron fuel combustion, comprising the steps of: providing an iron fuel suspension medium comprising iron fuel and oxygen in a suspension solid density of between 2 to 15 kg / Nm3 and more preferably of between 4 to 8 kg / Nm3; introducing said iron fuel suspension medium into an iron fuel burner arrangement at a velocity of between 5.5 and 55 m / s and more preferably between 20 and 40 m / s; introducing air from air inlet means into said iron fuel burner arrangement, wherein said air from said air inlet means is introduced with an overall angular momentum ratio between said air and said iron fuel suspension medium of between 3 and 12 and more preferably between 3.8 and 8.9; mixing said iron fuel suspension medium by subjecting it with said air such that an overall oxygen-to-fuel equivalence ratio is obtained between 1.0 and 2.5 and more preferably between 1.2 and 1.8 for obtaining a combustible medium in the said burner arrangement; igniting said combustible medium to provide a combusting iron fuel containing medium.

The utility model provides a grate type combustion furnace which comprises a furnace body, a cavity is arranged in the furnace body, an ignition mechanism is arranged in the cavity, an air supply port, a fuel feeding port and a high-temperature smoke outlet are arranged on the furnace body, and the grate type combustion furnace is characterized in that a plurality of layers of grate plates which are sequentially overlapped in a staggered mode are arranged in the cavity of the furnace body from top to bottom, and the high-position ends of the plurality of layers of grate plates are connected with the fuel feeding port. The rest of the grid plates extend towards the high-temperature flue gas outlet, the heights of the grid plates are reduced layer by layer, a plurality of air holes are formed in the grid plates, the multiple layers of grid plates are connected with a translation driving mechanism, and the air holes are connected with external air supply equipment through an air supply mechanism. The horizontal moving driving mechanism drives the multiple layers of grid plates to stretch and retract forwards and backwards, so that fuel on the multiple layers of grid plates can continuously move from the fuel feeding port to the high-temperature flue gas outlet and is evenly laid on each layer of grid plates. Hot air supplied by external air supply equipment can be introduced into the cavity through the air holes, so that fuel continuously floats in the furnace body, and the effects of uniform preheating and uniform combustion are achieved. The quick separation of volatile components in the biomass fuel is improved, the combustion efficiency of the fuel can be improved, and the generation and emission of harmful substances are reduced.

The utility model relates to the technical field of steam boilers, in particular to a steam boiler for feed production. The steam boiler for feed production can fully burn fuel in place. A steam boiler for feed production comprises a mounting frame and a combustion furnace which is arranged on the mounting frame and used for combusting fuel, a water boiling tank used for storing water is arranged on the combustion furnace, a steam discharge pipe is arranged on the upper portion of the water boiling tank, and the steam discharge pipe is externally connected with feed production equipment. A water injection pipe is arranged on one side of the water boiling tank, and a sealing mechanism is arranged on the combustion furnace. The double-shaft motor drives the pushing plates to move towards the close positions, the two pushing plates move to push fuel in the combustion furnace to get close to the middle of the combustion furnace, and therefore the fuel can be completely gathered, and combustion of the fuel is more sufficient.

The invention discloses a small gasification grate boiler for burning biomass bulk materials and an operation method thereof.The small gasification grate boiler comprises a grate set and a gasification hearth, and the grate set comprises a gasification grate and a burnout grate which are separated by a partition wall area; a first air chamber used for supplying quantitative air to the position above the gasification fire grate is arranged below the gasification fire grate, a second air chamber used for supplying quantitative air to the position above the burnout fire grate is arranged below the burnout fire grate, and a gasification combustion space located above the gasification fire grate is defined by the gasification hearth. A secondary air inlet used for supplying quantitative air into the gasification combustion space is formed in the hearth wall of the gasification hearth, according to the small gasification grate boiler, the grate is segmented, and the air amount supplied for combustion is controlled in all stages, so that gasification combustion of fuel is achieved; and the property difference between different substances of the biomass bulk material is flattened in the gasification combustion process, so that the biomass bulk material fuel with large heat value difference can be combusted, and the operation efficiency and the cost of the boiler are not influenced.

The invention relates to the technical field of stepped furnaces, in particular to a mixed biomass energy-saving combustion stepped furnace which comprises a stepped furnace body and a feeding area, a conveying pipe is arranged in the feeding area, a driving assembly and a transmission assembly are arranged at the right end of the stepped furnace body, and a material frame a, a material frame b and a material frame c are sequentially arranged on the conveying pipe from left to right. A material roller a, a material roller b and a material roller c are rotatably arranged in the material frame a, the material frame b and the material frame c correspondingly, lifting assemblies are slidably arranged on the material frame a and the material frame c correspondingly, a driving assembly drives the material roller a, the material roller b and the material roller c to rotate through gear meshing, and coal and bamboo scraps in the material roller a, the material roller b and the material roller c are sucked into a material conveying pipe to be mixed through the negative pressure effect. The lifting assembly is driven by the transmission assembly to dredge coal in the material roller a and the material roller c, and the coal and bamboo sawdust in the material conveying pipe are blown into the stepped furnace through the air blower to be combusted. The problem of insufficient combustion heat supply caused by different feeding proportions of alternative fuels is solved.

The invention discloses a biomass double-hearth combustion furnace with a direct-flow burner and a rotational-flow burner arranged at the bottom, and relates to the technical field of combustion equipment. The problems that an existing combustion device is insufficient in adaptability to the particle size of biomass particles, and large-particle biomass is difficult to burn out completely are solved. A direct-current burner is connected with the outer wall of an inner-layer furnace and the inner wall of an outer-layer furnace through a posture adjusting assembly, a turbulent burner and an inner-layer furnace combustion chamber which are embedded inside and outside are installed at the bottom of the inner-layer furnace, a through turbulent burner is installed at the bottom of the inner-layer furnace combustion chamber, and a third smoke exhaust channel is formed in the upper portion of the inner-layer furnace. An outlet of a first smoke exhaust channel in the upper portion of the outer-layer furnace is communicated with a third smoke exhaust channel, an outlet of a second smoke exhaust channel is communicated with an inlet of a cyclone separator, an outlet in the upper end of the cyclone separator is communicated with an inlet of a turbulent burner through a combustible gas connecting pipeline, and an outlet in the lower end of the cyclone separator is communicated with a combustion chamber of the inner-layer furnace through a carbon residue channel. The biomass burner is used for achieving sufficient burning of large-particle biomass, and the burn-off rate is increased.

The invention provides a high-temperature heat storage method and system of a coupling peak regulation boiler. The method comprises the steps that hot flue gas of the peak shaving boiler and a low-temperature solid particle heat storage material are mixed and subjected to heat exchange, and a high-temperature solid particle heat storage material is obtained; the high-temperature solid particle heat storage material is stored in a heat preservation mode; the high-temperature solid particle heat storage material exchanges heat with water or water vapor to generate high-temperature steam, and at least part of the high-temperature steam is used for power generation; carrying out mixed heat exchange on the high-temperature solid particle heat storage material and gas to obtain high-temperature flue gas; and at least part of the high-temperature flue gas is sent back into the peak regulation boiler. The technical scheme can be widely applied to the technical field of boiler peak regulation.

A stove is provided that includes a combustion chamber, a fuel grate disposed within the combustion chamber, and a pellet adapter removably positionable on the fuel grate. The fuel grate includes a plurality of first vent holes. The pellet adapter includes a plurality of second vent holes sized and shaped to prevent the passage of fuel pellets. The pellet adapter also includes a raised outer rim and a central protrusion having a height greater than the height of the raised outer rim.

The invention discloses a power generation combustion boiler capable of improving combustion efficiency, which comprises a boiler body, a gas supply device is arranged on one side of the boiler body, the gas supply device is used for feeding oxygen and fuel gas required by combustion into the boiler body, and the gas supply device is further used for feeding combustible gas or dust which is not fully combusted in the boiler body into the boiler body again to be combusted again. A material bearing mechanism, a material turning mechanism and a material vibrating mechanism are arranged in the furnace body, the material bearing mechanism is used for bearing fuel, and the material turning mechanism is matched with the material bearing mechanism and rotates around the center in the furnace body to turn materials in the furnace body. The air holes formed in the surface of the material bearing plate can upwards blow out vortex airflow to blow fuel in the furnace, the fuel can become loose through vibration of the material vibration mechanism, pores among the fuel can be completely opened, combustion-supporting gas can be fully mixed with the fuel, combustion is promoted, the fuel in the furnace is continuously turned over through the material turning mechanism in the combustion process, and the combustion efficiency is improved. Fuel combustion is further promoted, and combustion efficiency is improved.