144results about How to "Burn fully" patented technology

The application discloses a method for preparing a coal-saving agent by using metal treatment wastewater, and comprises the following steps: preparing the coal-saving agent by compounding metal treatment wastewater, penetration and dispersion components, emulsification components, catalytic components and oxidation components; and spraying 0.05%-0.1% of the coal-saving agent in the coal, so that the initial combustion temperature of the coal is reduced by 20-50 DEG C, the burnout temperature is reduced by 20-60 DEG C, and the carbon content of the ash is reduced by more than 5%. The application applies the metal treatment wastewater to the production of the coal-saving agent, changes waste into treasure, promotes the recycling of resources, and realizes harmless treatment of resources.

The biomass particle hot blast stove comprises a stove body, a feeding assembly, a combustion assembly, a heat exchange assembly and a smoke exhaust assembly. The combustion assembly is arranged in the furnace body, a combustion chamber of the combustion assembly is sequentially divided into a drying pyrolysis area, a main combustion area and a burnout area in the conveying direction of biomass particles, and ordered partitioned combustion of preheating, sufficient combustion and complete burnout of fuel is achieved; the heat exchange assembly comprises a first heat exchange set arranged above the combustion assembly and a second heat exchange set arranged in the circumferential direction of the combustion assembly, and a three-dimensional and multi-layer waste heat recovery structure is formed. The combustion efficiency and the burn-off rate of the biomass particles are obviously improved; through the first heat exchange set and the second heat exchange set, efficient and sufficient recovery of combustion waste heat is achieved, and the overall heat efficiency and the energy utilization rate of the hot blast stove are greatly improved.

The invention belongs to the technical field of internal combustion engine power devices, and discloses a double-piston mechanism for an internal combustion engine, which comprises a cylinder body, and more than one cylinder is arranged in the cylinder body; an air inlet seat and an air outlet seat are installed on the upper portion and the lower portion of the cylinder body respectively, an air inlet pipe and an air outlet pipe are arranged in the air inlet seat and the air outlet seat respectively, and an air inlet channel and an air outlet channel are arranged in the air inlet pipe and the air outlet pipe respectively. A control device for gas distribution is arranged at the corresponding position of each cylinder; a high-pressure oil pump is arranged outside the cylinder body, and the high-pressure oil pump is communicated with the oil sprayer through a high-pressure oil pipe; a piston assembly I and a piston assembly II are symmetrically arranged in each cylinder body, and a bevel gear set I and a bevel gear set II which are matched with the piston assembly I and the piston assembly II to transmit power are further arranged in each cylinder body. The power performance of the internal combustion engine can be improved through the two piston assemblies, the device is small in size and light in weight, and single-machine fuel consumption and operation cost are effectively reduced.

The utility model belongs to the technical field of RTO furnaces, and discloses an RTO furnace energy-saving blowback device which comprises a bottom plate, a furnace body is fixedly arranged on the upper surface of the bottom plate, a blowing pipeline is fixedly arranged on one side of the furnace body, an air mixing box is fixedly arranged at one end of the blowing pipeline, an RTO fan is fixedly arranged on one side of the air mixing box, and a blowing fan is fixedly arranged on the other side of the blowing pipeline. The lower surface of the RTO fan is fixedly connected with the bottom plate, a high-temperature bypass is fixedly arranged on one side of the furnace body, a high-temperature air mixing box is fixedly arranged on one side of the furnace body, and the high-temperature air mixing box is fixedly connected with the lower end of the high-temperature bypass. The blowback operation can be carried out on equipment, the use of an RTO system fan is reduced, reasonable distribution, regulation and control of gas entering the furnace body can be realized through the combustion chamber and the air distribution chamber located below the combustion chamber, sufficient combustion of the gas in the combustion chamber is ensured, and the combustion efficiency is improved.

The utility model discloses a controllable temperature regulation's moxa -moxibustion box relates to moxa -moxibustion box technical field, it includes moxa -moxibustion box, the inside bottom side of moxa -moxibustion box is provided with the ash net, the rear side wall of moxa -moxibustion box is provided with a plurality of ventilation holes, the front side wall of moxa -moxibustion box is provided with two temperature control holes, and the upside of moxa -moxibustion box is provided with the box cover. Controllable temperature regulation's moxa -moxibustion box, through setting up the temperature control box and sticking moxa -moxibustion box, temperature probe can monitor the temperature of inside bottom side of moxa -moxibustion box in real time, when the temperature in moxa -moxibustion box is too low, can pass through the fan of opening, pass through the airflow delivery channel formed between ventilation hole, temperature control hole and drainage hole, increase the flow rate of airflow in moxa -moxibustion box, so as to realize the sufficient combustion of moxa stick / moxa stick, increase the temperature of moxa stick / moxa stick combustion in moxa -moxibustion box, guarantee the moxa stick / moxa stick of burning to have enough warm heat to stimulate the activation of meridian qi of body part.

The invention discloses a combustor and a gas stove. The combustor comprises a furnace end, a fire cover, an ignition needle, an induction needle and a fluid machine, the furnace end is provided with a first containing cavity, a second containing cavity and a third containing cavity, the fire cover covers the furnace end and comprises an outer ring fire cover, an inner ring fire cover and a gas conveying channel, the outer ring fire cover is provided with outer ring fire holes communicated with the first containing cavity, the inner ring fire cover is provided with inner ring fire holes communicated with the third containing cavity, and the gas conveying channel is communicated with the second containing cavity. The outer ring fire cover surrounds the inner ring fire cover, a clamping cavity is formed between the outer ring fire cover and the inner ring fire cover, the gas conveying channel is communicated with the second containing cavity, the tip end of the ignition needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, the tip end of the induction needle is arranged in the clamping cavity and is not higher than the gas outlet end of the gas conveying channel, and the fluid machine is suitable for providing blast air for the second containing cavity. The blast air can flow out of the air conveying channel to be supplemented to the flame roots of the inner ring fire holes and / or the outer ring fire holes, and due to the fact that the air outlet end of the air conveying channel is higher, interference of the blast air exhausted from the air conveying channel to ignition and fire sensing is reduced.

The folding top plate structure comprises a back plate, a top plate is rotationally installed on the back plate, a storage table is arranged at the upper end of the top plate, a lamp panel is arranged at the lower end of the top plate, first insertion holes are formed in the two sides of the back plate, and the first insertion holes are communicated with the storage table. The two sides of the top plate are provided with bolts which correspond to the first insertion holes in position and are fixedly inserted into the first insertion holes in a connected mode. According to the firewood stove, the top plate is horizontally arranged on the back plate, so that utensils such as a steamer and a food steamer can be conveniently placed on the storage table on the top plate, meanwhile, the utensils such as the steamer can be conveniently taken and used in the cooking process, the firewood stove is more convenient to use, the structure is more compact and reasonable, the size is greatly reduced, and the space is saved; and when the top plate is vertically rotated on the back plate, the top plate can avoid cooking of the firewood stove, so that steaming tools with relatively high stacking height can also meet cooking use, and the practicability of the firewood stove is better.

The utility model relates to the technical field of agriculture, and discloses a biomass hot-blast stove for drying rice, which comprises a hot-blast stove, the top of the hot-blast stove is fixedly connected with a smoke exhaust pipe, the inner wall of the smoke exhaust pipe is inserted with a filter screen, the left side and the right side of the filter screen are inserted with limiting insertion blocks, and the inner walls of the two limiting insertion blocks are connected through a fixing assembly. Four supporting rods are fixedly connected to the bottom of the hot blast stove, pulleys are rotationally connected to the inner walls of the supporting rods, and the front sides and the rear sides of the pulleys are connected through limiting assemblies so that the pulleys can be fixed. According to the utility model, smoke is filtered through the filter screen, the crank is rotated to enable the two limiting insertion blocks to slide to unfasten the fixation of the filter screen, and the filter screen is pulled out to be replaced and is cleaned and replaced; therefore, the replacement speed of the filter screen is increased, and the working efficiency is improved.

The invention discloses a load self-adaptive waste gas torch ignition device and a control system, relates to the technical field of torch ignition devices, and is mainly used for coping with combustible waste gas load fluctuation scenes in the industrial production process, realizing stable and efficient combustion of waste gas and avoiding resource waste and environmental pollution. Specific to a gas inlet mode in a high-pressure / low-pressure gas channel, self-adaptive actions are performed according to gas pressure fluctuation, and the actions comprise that a rotary encoder of an action fine adjustment assembly indirectly feeds back gas flow of the low-pressure / high-pressure gas channel by detecting the rotating speed of a transmission rod and combines initial gas pressure, a waste gas pressure change value and gas flow data, so that the gas flow is adjusted. The micro-drive motor is controlled to drive the transmission rod to rotate, the first transfer gas sheet drives the high-pressure gas channel forward / reverse gas sheet to rotate directionally, the overlap ratio of eccentric gas ports of the gas sheets is changed, the higher the overlap ratio is, the smaller the gas flow resistance is, the higher the gas pressure is, and otherwise, the smaller the gas pressure is, precise adjustment of the gas pressure of the high-pressure gas channel is achieved, and waste gas load changes are adapted.

This invention belongs to the field of combustion control technology for heating furnaces, specifically a dynamic prediction method for air-fuel ratio based on combustion control in heating furnaces. It includes preprocessing raw monitoring data from the heating furnace operation process based on combustion mechanisms, constructing a multi-dimensional input vector, outputting the optimal air-fuel ratio prediction value for future moments based on an improved LSTM neural network model, and adjusting the combustion air supply to the heating furnace according to the optimal air-fuel ratio prediction value. This invention effectively solves the problem of slow response to gas fluctuations and changes in operating conditions in traditional methods through the synergistic driving of mechanisms and data, significantly improving the accuracy and real-time performance of combustion control. Furthermore, by deeply integrating physical mechanisms, it enhances the model's generalization ability and interpretability, significantly improving the thermal efficiency of the heating furnace and reducing unit product energy consumption and harmful gas emissions.

The application discloses a hot water boiler based on a porous medium burner, which comprises a hot water boiler shell, wherein the hot water boiler shell comprises a boiler barrel, the outer side of the boiler barrel is provided with a water jacket for storing water, and the inside of the boiler barrel is fixedly provided with a porous medium burner; the inner cavity of the porous medium burner comprises a combustion reaction zone, the two ends of the combustion reaction zone are provided with anti-backfire areas, the two ends of the porous medium burner are provided with mixed gas inlets, the mixed gas inlets are connected with mixed gas input pipelines, one end of the mixed gas input pipelines extends out of the hot water boiler shell and is connected with a gas fuel supply device; the porous medium burner is internally provided with an ignition device, mixed gas flows into the combustion reaction zone from the mixed gas input pipelines and is ignited by the ignition device, heat generated by combustion of the mixed gas heats water in the water jacket, flue gas is discharged from the combustion reaction zone through the pores of the porous medium of the porous medium burner and is discharged into a flue gas treatment mechanism connected with the hot water boiler shell, the gas utilization rate is improved, and the heat diffusion speed is slowed down.

The utility model relates to an improved energy -conserving combustion stove core, including stove core body, stove core body has first stove section and second stove section, the inside diameter of first stove section is less than second stove section, and the lower extreme of first stove section is equipped with the cover, is equipped with the central hole and sets up first air -assist hole around central hole on the cover, and the upper extreme of second stove section is equipped with the fire -break cover, still includes gasification lid, and the gasification lid sets up in the inner chamber of second stove section and will the inner chamber of second stove section divide into first chamber and second chamber, be equipped with the mounting hole that the first stove section is passed into first stove section for the ignition needle on first stove section, or be equipped with the mounting hole that the first chamber is passed into for the ignition needle on second stove section, be equipped with a plurality of first fire -break through -hole on the gasification lid, and first fire -break through -hole is from the upper end surface of gasification lid and is penetrated to the lower end surface, and a plurality of first fire -break through -hole surrounds the central axis distribution of gasification lid.

The utility model discloses a multi-element accurate proportioning low-temperature brimstone furnace control system, which mainly comprises a central controller, and a data acquisition unit, a fan driving unit, a molten sulfur control unit, a metering pump control unit, an atomization control unit, an ignition control unit, a hearth positive and negative pressure protection unit and a brimstone furnace high and low temperature protection unit which are connected with and controlled by the central controller. The sulfur combustion furnace system automatically and accurately distributes air and sulfur according to the squeezing amount or the flow, the stoving intensity and the like, and the problems that due to the fact that an existing sulfur combustion furnace system is inaccurate in air distribution and sulfur distribution, combustion is insufficient, sublimed sulfur is much, and technological indexes are unstable are solved.

This invention discloses a biomass pellet burner, comprising: a hopper including an inlet and an outlet; a screw feeder including a screw feed pipe, a screw feed rotating component disposed within the screw feed pipe, and a screw feed drive component connected to the screw feed rotating component, the outlet being disposed at a first end of the screw feed pipe; a combustion chamber disposed at a second end of the screw feed pipe; an air supply device including an air supply chamber and an air supply drive component connected to the air supply chamber, the air supply chamber including an air distribution chamber and a combustion chamber air chamber, the air distribution chamber communicating with the screw feed pipe, and the combustion chamber air chamber communicating with the combustion chamber; and an ignition device, a sealing plate disposed between the air distribution chamber and the combustion chamber, the inlet end of the ignition device being located within the air distribution chamber, and the outlet end of the ignition device being located within the combustion chamber. This invention avoids backflow and backfire by balancing the pressure of the screw feed pipe and the combustion chamber.

This invention relates to the field of burner technology, specifically a burner for a gas-fired wall-hung boiler, comprising a rear mounting bracket and a venturi tube mounted on its front side. The front side of the venturi tube is connected to the front mounting bracket, and a temporary storage frame is fixed to the front side of the front mounting bracket. A burner head of the venturi tube is mounted above the venturi tube. In this burner, when the rotating rod drives the convex column to rotate, the convex column intermittently applies a downward thrust to the convex block. This causes the convex block to drive the piston assembly to intermittently reciprocate within the gas storage pipe. Therefore, the piston assembly reciprocates to draw gas and air from the main pipe into the gas storage pipe and then discharges the gas and air from the gas storage pipe. This repeated operation allows for thorough pre-mixing of the pre-mixed gas and air, improving the completeness of subsequent combustion, reducing exhaust emissions, and lowering gas consumption, thus achieving excellent energy-saving and gas-saving effects.

This utility model discloses an ECU with excellent heat dissipation, belonging to the field of turbojet engine technology. It includes an ECU housing, an ECU circuit board inside the housing, a heat dissipation pad at the bottom of the ECU circuit board, and a cooling mechanism at the bottom of the heat dissipation pad. The cooling mechanism includes oil passages located at the bottom of the heat dissipation pad, which are connected to a fuel tank and a fuel pump. Before external fuel enters the fuel pump, it first flows into the ECU housing and then passes through the fuel pump. The oil passages inside the ECU housing and the cooling pad at the bottom of the ECU circuit board allow the fuel to carry away most of the heat generated during ECU operation, thus continuously removing the heat generated during ECU operation. This maintains a stable ECU temperature and ensures the normal operation of the ECU circuit board.

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

This invention provides an apparatus for oxygen-enriched roasting of lepidolite. The apparatus includes: a roasting furnace; a feed trough disposed on the roasting furnace, with a discharge trough at the bottom of the furnace, the outlet of which is sealed by a sealing plate; and a combustion assembly mounted on the roasting furnace for roasting the lepidolite. The apparatus for oxygen-enriched roasting of lepidolite provided by this invention prepares oxygen-enriched gas and fuel through an oxygen-enriched air preparation assembly, which then enters the roasting furnace for combustion. Because the fuel burns faster and more completely in an oxygen-enriched state, the emission of harmful gases is effectively reduced. The oxygen-enriched gas lowers the fuel's ignition point; under the same natural gas mass and flow rate, a higher oxygen content in the oxygen-enriched air results in a higher flame temperature, significantly improving the utilization rate of thermal energy.

This utility model discloses a core structure for a high-energy ignition coil used in automobiles, including a core structure installed inside the ignition coil housing. The core structure comprises a magnetic sheet, a primary coil, a secondary coil, and a toroidal core. The magnetic sheet is embedded in the primary coil, which is interference-fitted into the secondary coil. The toroidal core simultaneously surrounds both the primary and secondary coils and is tightly fitted to the magnetic sheet. The end of the primary core furthest from the magnetic sheet is tightly fitted against the toroidal core. The closed magnetic circuit structure of the toroidal core concentrates the magnetic field almost entirely within the core, resulting in minimal magnetic leakage, uniform magnetic field distribution, low magnetic reluctance, and high magnetic flux density. This leads to high energy conversion efficiency, minimal energy loss, and the efficient energy conversion capability enables the ignition coil to generate higher secondary voltage and stronger spark energy. It is suitable for lean-burn and high-performance engines, ensuring reliable ignition and better fuel economy.

The utility model discloses a biogas purification desulfurization treatment device, which relates to the technical field of biogas desulfurization and comprises a device body, the inner wall of the device body is respectively communicated with a gas inlet box and a gas outlet box, a purification component is arranged in the gas inlet box, and a disassembly component is arranged in the gas inlet box; the methane purification device has the advantages that methane can be better purified and desulfurized through the purification assembly, hydrogen sulfide in the methane can be removed through targeted adsorption or chemical reaction of the desulfurizer layer, the concentration of the hydrogen sulfide is reduced to reach the safety standard, and the methane purification device is simple in structure, convenient to use and high in practicability. And the purification layer can further filter solid particles, moisture and residual impurities in the biogas, the purity of the biogas is improved, the biogas is combusted more sufficiently, the heat value is more stable, and the device is suitable for high-quality energy utilization scenes such as power generation and heat supply.

The invention discloses a control method, device and equipment for a gas device and a medium, the method comprises the steps that a heating signal is responded, a smoke exhaust fan is controlled to operate at a high gear within first preset time, the gears of the smoke exhaust fan comprise the low gear and the high gear, and the types of the heating signal comprise the low-gear heating signal and the high-gear heating signal; after the first preset time is up, the smoke exhaust fan is controlled to operate at a low gear, and meanwhile the ignition needle is controlled to start preheating; after the ignition needle reaches the preset temperature, the gas valve is controlled to operate at a low gear; and if it is detected that ignition succeeds, gear switching of a gas valve and a smoke exhaust fan is controlled based on the type of the heating signal. According to the technical scheme provided by the embodiment of the invention, the effects of preventing ignition deflagration and enabling fuel gas to be fully combusted can be achieved.

This invention belongs to the field of engines, specifically relating to a fuel supply structure and a solid-liquid hybrid rocket engine, including an oxygen-enriched propellant supply mechanism and a gel fuel supply mechanism. The oxygen-enriched propellant supply mechanism includes a coating column, which includes a coating sleeve with an opening facing the combustion chamber, and the coating sleeve is used to hold the oxygen-enriched propellant. The gel fuel supply mechanism includes a gel fuel supply device, an annular channel, and an atomizer arranged sequentially. The annular channel is arranged around the outer edge of the coating sleeve, with its downstream end protruding downstream of the coating sleeve. The atomizer is located at the end of the annular channel protruding downstream of the coating sleeve, and the annular channel and the coating sleeve together seal the upstream end of the combustion chamber. This invention's engine adopts a novel combination of gel fuel and oxygen-enriched propellant, combining some of the advantages of both to achieve the effects of increased specific impulse, adjustable thrust, and multiple starts.

This application discloses a control method, apparatus, readable storage medium, and vehicle for an internal combustion engine, relating to the field of engine technology. The control method for the internal combustion engine includes: after the internal combustion engine is started, detecting a first operating condition of the engine; when the first operating condition meets preset first injection conditions, controlling the injector to inject fuel into the intake manifold according to a first injection quantity, so that fuel and air form a first mixture inside the intake manifold; controlling the injector to inject fuel into the intake manifold according to a second injection quantity, so that fuel and air form a second mixture inside the intake manifold, wherein the second injection quantity is greater than the first injection quantity, and the air-fuel ratio of the second mixture is less than that of the first mixture; after the first and second mixtures combust, detecting a second operating condition of the internal combustion engine; when the second operating condition meets preset second injection conditions, controlling the internal combustion engine to inject fuel into the intake manifold according to a third injection quantity, wherein the third injection quantity is greater than the second injection quantity, and the operating temperature of the internal combustion engine corresponding to the second injection condition is greater than the operating temperature of the internal combustion engine corresponding to the first injection condition. This application improves the fuel efficiency of the internal combustion engine.

The application discloses a rotary kiln and smelting slag disposal equipment. The rotary kiln comprises a kiln body and a poking element, and the poking element is arranged on the inner wall of the kiln body. In the axial direction of the kiln body, the kiln body is sequentially divided into three treatment sections, and the working temperature of the middle treatment section is the highest. The inner wall of each treatment section is provided with the poking element. A projection plane λ perpendicular to the axial direction of the kiln body is set, and the normal projections of the poking elements of adjacent treatment sections on the projection plane λ are staggered with each other. The second treatment section is located in the middle position, and the treatment sections on both sides have a certain heat preservation effect on the second treatment section, so that the working temperature in the second treatment section can be kept at a set higher temperature. In the process that the material falls from the top to the bottom, the material is fully contacted with the flame, so that the material can be fully combusted, and the combustion efficiency and the heating efficiency of the material are improved. Meanwhile, impurities can be more easily separated. The poking elements in adjacent treatment sections are staggered, and the materials in adjacent treatment sections will not affect each other.

The utility model relates to a novel flame stabilizing disc of a low-nitrogen combustor, and belongs to the technical field of combustors. The air flow stabilizing device comprises an air conveying spray pipe, a fixing ring, an air flow stabilizing ring and a plurality of air flow deflectors, the air flow deflectors are arranged on the outer wall of the air conveying spray pipe, the air flow deflectors are sleeved with the fixing ring, and the air flow stabilizing ring is installed outside the fixing ring. The device is reasonable in structural design, safe, reliable and environment-friendly, NOx emission can be effectively reduced, and the use requirement is met.

The utility model discloses a kind of perforating device of bundled straw biomass fuel, including frame, and frame is provided with perforating device, and perforating device includes linear power mechanism, mounting seat and punch assembly, the end surface of mounting seat is connected with linear power mechanism, and the other end surface is provided with punch assembly;The bottom of frame is provided with the positioning assembly for positioning straw bundle, and linear power mechanism drives punch assembly to carry out punching operation to the straw bundle after positioning. Linear power mechanism includes any one in hydraulic cylinder, cylinder, electric cylinder, and hydraulic cylinder is connected with hydraulic pump group and control valve group, cylinder is equipped with gas source equipment and solenoid valve, electric cylinder is electrically connected with servo driver and controller. The utility model punches in straw bundle, obtains straw bundle with air hole, increases airflow flow in straw bundle, effectively improves the combustion efficiency of whole straw bundle, can effectively reduce the volume and structure of combustion furnace, reduces combustion furnace investment cost.

The application provides a combined power system based on a methanol fuel cell auxiliary power device and a turbofan main engine, which is applied to the field of aviation power technology and comprises a fuel supply system, a heat exchanger, a preheater, a methanol fuel cell auxiliary power device system and a turbofan engine core system; the fuel supply system is connected with the methanol fuel cell auxiliary power device system and the heat exchanger respectively; the heat exchanger and the methanol fuel cell auxiliary power device system are connected with the preheater; and the preheater is connected with the turbofan engine core system. The methanol fuel cell auxiliary power device can utilize the electric power generated by the fuel cell to drive an electric auxiliary turbocharger to generate high-pressure gas when the main engine is started, so that the high-pressure gas is led to the combustion chamber of the main engine and the combustion efficiency is improved; on the other hand, the electric power generated by the fuel cell can be utilized to preheat the fuel led to the main engine, so that the atomization quality of the fuel is improved and the combustion efficiency is further improved.

The present application relates to the field of boiler combustion technology of thermal power plant and discloses a pulverized coal burner, the pulverized coal burner comprises a first combustion cylinder, a flow guide pipe, a second combustion cylinder and a combustion stabilizer, the flow guide pipe has an air inlet end and an air outlet end, the air outlet end is communicated with the first combustion cylinder, the flow guide pipe is used for guiding the mixed gas flow carrying the pulverized coal into the first combustion cylinder, the second combustion cylinder is arranged in the interior of the first combustion cylinder, an annular channel is formed between the second combustion cylinder and the first combustion cylinder, the second combustion cylinder is used for dividing the mixed gas flow into a first-stage gas flow flowing through the second combustion cylinder and a second-stage gas flow flowing through the annular channel, the combustion stabilizer is arranged on the flow guide pipe, the combustion stabilizer has an air outlet part, the air outlet part is in the interior of the flow guide pipe and faces the second combustion cylinder, and the air outlet part is used for spraying the flame and igniting the first-stage gas flow and the second-stage gas flow in sequence. The pulverized coal burner of the embodiment of the present application can be ignited in batches and realize stable and sufficient combustion.

The utility model discloses a dangerous waste incineration system, including rotary kiln, two combustion chamber, its characterized in that, the side of two combustion chamber bottom is provided with the hopper plate that the inner surface is smooth and the inclination is 50 65 DEG, and another side of two combustion chamber bottom is connected with rotary kiln, and the smoke outlet of rotary kiln kiln tail is towards hopper plate, and the position of hopper plate upper end and two combustion chamber side wall interface is provided with combustion port, and combustion port is used to along the inclined direction of hopper plate to two combustion chamber bottom air supply combustion, and the bottom of two combustion chamber is provided with decoking burner still, and decoking burner is used to inject flame between the smoke outlet of rotary kiln kiln tail and hopper plate.

The utility model provides a hydrogen-doped pulverized coal mixed combustion device and a hydrogen-doped pulverized coal mixed combustion system. The hydrogen-doped pulverized coal mixed combustion device comprises a hydrogen distribution device, a pulverized coal conveying device, a fuel mixing device and a combustion device, the hydrogen distribution device and the pulverized coal conveying device are arranged in parallel, and an inlet of the hydrogen distribution device and an inlet of the pulverized coal conveying device are communicated with a hydrogen storage tank and a pulverized coal storage bin through pipelines respectively. Outlets of the hydrogen distribution device and the pulverized coal conveying device communicate with the fuel mixing device through pipelines so that hydrogen and pulverized coal can be mixed to form a gas-solid mixture, and the combustion device combusts the gas-solid mixture. According to the hydrogen-doped pulverized coal mixed combustion device, hydrogen and traditional energy are combined and utilized in the industry, and in the combustion process of the hydrogen-doped pulverized coal, emission of pollutants can be reduced, and sustainable low-carbon development of economy is promoted.