429 results about "Biomass burning" patented technology

The invention provides a method of converting heat energy to a more usable form using a multi-component working fluid mixture that contains ammonia and water. The working fluid is operated in a thermodynamic cycle that includes liquid compression (30), vaporization (33), expansion through a turbine (34) and condensing (36). The multi-component fluid varies in temperature during phase change allowing for the use of counter-flow heat exchangers for the heater (33), cooler (36), recuperator and pre-heater (32). Significant recuperation is possible due to the temperature change during phase change. A pre-heater (32) can be applied to ensure only single-phase vapour exists within the heater. The invention can be used in conjunction with a biomass combustor or with waste flue gas from an existing industrial process. The coolant exits at a temperature sufficient to allow use in external heating applications or to minimize the size of external heat rejection equipment

A granular biomass burning furnace for use with any appropriate granular biomass, such as grains, cherry pits, etc. The furnace includes a three stage heat exchanger, a fuel injector, a fuel stirrer, an ash ejector, a wash down system, a three stage air inducer, a fuel igniter, and supporting components. The unit includes a computer controller which controls all aspects of the operation of the unit based on information from sensors located throughout the unit. The unit includes a smart logic thermal controller to adjust the output heat of the unit via a variable speed air inducer. The three stage heat exchanger system includes a spiral water jacket surrounding the burn pot, a plurality of heat exchanger baffles in the unit, and a fine finned heat exchanger at the top of the unit. The air inducer provides air to the burn pot from three directions to promote complete combustion.

The invention aims to provide tobacco leaf baking equipment. The tobacco leaf baking equipment comprises a heating apparatus, a humidity discharging apparatus and a controller, wherein the heating apparatus comprises a biomass combustion furnace, a heat exchanger connected with an exhaust gas outlet pipe of the biomass combustion furnace, a circulating fan used for conveying hot air, and a feeding apparatus used for feeding to the biomass combustion furnace; the feeding apparatus comprises a hopper and a helical conveying part for conveying the material in the outlet of the hopper to the material inlet of the biomass combustion furnace; the humidity discharging apparatus comprises a humidity discharging opening and a humidity discharging window formed in the humidity discharging opening; and an oxygen supplying device, the circulating fan and the helical conveying part in the biomass combustion furnace are all connected with the controller. By adoption of the technical scheme, the tobacco leaf baking equipment has the advantages as follows: the overall tobacco leaf baking equipment is simple in structure; due to the integrated design of the heating apparatus, the humidity discharging apparatus and the controller, the tobacco leaf baking equipment is high in practicability; and the biomass combustion furnace is adopted for providing heat energy, so that the tobacco leaf baking equipment is green and environment friendly.

The invention belongs to the field of energy. Biomass is used as a raw material, and is added with catalyst calcium carbonate/magnesium carbonate of a carbonate system to react in a fluidized bed; a biomass gasification process is divided into two processes, namely a biomass burning process and a biomass pyrolysis and gasification process, and the two processes work alternately in turn, wherein the burning process comprises that catalyst calcium carbonate/magnesium carbonate granules are added into the fluidized bed, simultaneously air is supplied to the fluidized bed, the air supply to the furnace is stopped when the temperature of the bed layer is raised to a predetermined temperature, and the burning process is finished; then the biomass burning process turns to the gasification process, namely vapor and biomass are supplied to the fluidized bed to obtain hydrogen-rich gas with extremely low tar content; and after the hydrogen-rich gas is washed and purified by coal gas, the hydrogen-rich gas is converted into H2 and CO2 in a CO conversion device, then the gas is desulfurized and compressed, and the H2 is extracted from the gas in a variable pressure adsorption device. The method achieves that the gasification and burning two processes and the cyclic regeneration of a catalyst are finished in the same fluidized bed gasification furnace, the investment is saved, and the running cost is low.

The invention relates to the technical field of biomass fuel burning, in particular to a biomass burning machine provided with a tubular furnace hearth. The biomass burning machine comprises a stock bin, a feeding mechanism, the tubular furnace hearth and a slag discharging and breaking device, and is characterized in that a detachable lengthened barrel (2) is arranged at the top of the stock bin, a stock bin cover (1) is mounted at the top end of the lengthened barrel (2) in a sleeving manner, and a hopper (4) is arranged in a barrel (3); the feeding mechanism comprises a feeding casing (6) and a feeding screw rod (7), the feeding casing (6) penetrates through a bellows (8) and is movably mounted at a bottom outlet of the hopper (4), and the feeding screw rod (7) is arranged in the feeding casing (6); and the slag discharging and breaking device comprises a slag discharging and breaking screw rod (9) provided with a hollow part as well as a chain wheel (10). The biomass burning machine provided with the tubular furnace hearth has the advantages of sufficient burning, low tail gas pollution, prevention of slag bonding and caking, wide biomass fuel adaptability, long service life, stable operation, low maintenance cost and the like.

The invention relates to a device used for indirectly burning biomass to separate carbon dioxide and a method which is a burning way of the biomass and a biomass burning process based on a cycle oxygen carrier. The device consists of a circulating fluidized bed, a cyclone separator and a fluidized bed, which is formed into a circulation loop; the method is characterized in that oxidation reaction happens to metal and air in the circulating fluidized bed to generate a metallic oxide which enters the fluidized bed after being separated by the cyclone separator; gasification reaction happens to the biomass in the fluidized bed and the carbon dioxide or water vapour; reduction reaction happens to fuel gas generated from the gasification reaction and the metal oxide to generate the metal, the carbon dioxide and the water vapour, wherein, the carbon dioxide and the water vapour are discharged from an air outlet of the fluidized bed and condensed to obtain pure carbon dioxide and the metal reduced returns to the circulating fluidized bed for carrying out oxidation reaction with the air to complete the regeneration process of the metallic oxide. The carbon dioxide can be separated from combustion products without extra energy consumption.

The invention provides a biomass-burning power generation device and aims to solve the problem that biomass power generation is high in cost, serious in pollution and too narrow in available biomass material range. The technical scheme includes that the biomass-burning power generation device comprises a biomass burner (8), a temperature difference engine (17), a cooler (24), a circulating pump (25), a power generator (26) and a power control system (27), biomass fuel is burnt in the biomass burner (8) and releases high-temperature flame and gas to the temperature difference engine (17), low-temperature circulating liquid brings heat away from the temperature difference engine (17) to enable the temperature difference engine (17) to generate temperature difference so as to generate power output to drive the power generator (26) for power generation, and generated power is adjusted by the power control system and then output to the outside. The biomass-burning power generation device can be used for small-scale power generation of enterprises, institutions and the like, can be used for power generation of vehicular moving platforms, shipborne moving platforms, aircraft moving platforms and the like and can be used for distributed-type grid-connected power generation.

The invention relates to a method and device for integrally removing multiple pollutants in tail gas through plant ash seriflux. The method comprises the steps that plant ash seriflux is adopted for independently or jointly oxidize and remove SO2, NOx, Hg, H2S, HCl and HF in tail gas of a combustion or chemical device; tail gas containing SO2, NOx, Hg, H2S, HCl and HF from a boiler or kiln or chemical device is cooled and enters a rotary absorption reactor; soluble or acid gas SO2, NO2, Hg2+, H2S, HCl and HF can be directly washed and absorbed by a solution, and indissolvable gas NO and Hg0 can be absorbed by a solution after being pre-oxidized or oxidized by an additive into NO2, HNO2, HNO3 and Hg2+. According to the method, resource utilization can be achieved for solid waste produced by biomass burning, multiple pollutants can be integrally removed, the purpose of dealing with waste by waste is achieved, secondary pollution is avoided in the whole removal process, and the market development and application prospect is wide.

The invention discloses a satellite remote sensing atmospheric ozone profile inversion algorithm, which comprises: 1, carrying out radiation calibration and wavelength calibration by using an ozone monitoring instrument OMI; 2, carrying out radiation transmission model and weighting function calculation; and 3, inverting atmospheric ozone profile information based on an optimal estimation technology algorithm by using the radiation spectrum simulation value and the weighting function parameter calculated in the step 2 after the radiation calibration and the wavelength calibration of the ozonemonitoring instrument OMI are completed. According to the present invention, the algorithm is established by using the OMI ultraviolet radiation spectrum data and selecting the fitting wave bands UV-1and UV-2, and can invert the atmospheric ozone profile information from the earth surface to the 60 km atmosphere based on the optimal estimation technology, wherein the atmospheric ozone profile information comprises the total ozone column concentration, the troposphere ozone column concentration and the stratosphere ozone column concentration, such that the troposphere atmosphere ozone profileis accurately inverted; and the method can be used for analyzing the relationship between atmospheric ozone convective motion, exchange processes, biomass burning and human pollution, and tracking thetemporal and spatial transport of ozone.

The invention relates to a plant ash-based method for desulfurization, denitration and demercuration of double impact beds. The method is characterized in that flue gas containing SO2, NOx and mercury from a burner is cooled by a flue-gas temperature regulator, and is sprayed into impact-bed reactors by laval spraying pipes; a plant ash type absorbing agent is sprayed into the impact-bed reactors by the laval spraying pipes which are coaxially and oppositely distributed; two strands of air flow oppositely impact in the reactors and realize absorption and removal of the SO2, the NOx and the mercury; the impact bed reactors are symmetrically distributed, and when the left impact bed reactor is regenerated, the flue gas from the burner is automatically switched and flows into the right impact bed reactor; the two impact bed reactors are mutually crossed for use and regeneration. The method has the advantages that biomass burning waste is utilized for the desulfurization, the denitration and the demercuration simultaneously, the purpose of using waste to treat waste can be achieved, and no secondary pollution is caused in the removing process, so that the invention relates to a flue-gas purifying method and device with wide application prospects.

Disclosed herein are systems and devices that aid in reducing particulate emissions from biomass stoves, for example by the use of gases injected in or near the oxidation zone of a combustion chamber. Also disclosed are systems and devices providing electricity to a pump or blower that aids in injecting the gas and/or collecting exhaust gases. In some embodiments the device providing electricity is a thermoelectric generator that may also be used to power other devices. In many embodiments, the systems and devices inject a gas at or near the oxidation zone in the combustion chamber of a biomass stove. The gas injected into the zone may be fresh air, exhaust from combustion or combinations thereof. The gas can be forced into the to combustion chamber with the aid of a pump or blower that may also aid in drawing in exhaust gas.

The invention provides a biomass burning machine. Biomass is used for burning in the biomass burning machine. The biomass burning machine comprises a burning furnace, an air bellow and a feeding device connected to the burning furnace. A combustion chamber and a slag collection chamber are arranged in the burning furnace. The slag collection chamber is arranged below the combustion chamber. A space formed by the combustion chamber, the slag collection chamber and the inner wall of the burning furnace contains liquid mediums which are capable of conducting heat energy in the combustion chamber. Because the specific heat capacity of the liquid mediums is large, the liquid mediums can absorb the heat energy produced through burning of the biomass in the combustion chamber in a heat transmission mode, the burning environment of the biomass is improved, and the biomass burning machine is friendly to environment and reduces manpower and material resources. Moreover, the liquid mediums have fluidity, the liquid mediums absorbing the heat energy can be recycled after being cooled, and therefore the biomass burning machine has an energy-saving effect.

The invention discloses a blowing and sucking combined material drying system and a control method thereof. The blowing and sucking combined material drying system comprises an air pipe device, an air blowing part and an air sucking part, wherein air holes are formed in the air pipe device; the air blowing part is connected with the air pipe device and blows air to the air pipe device; and the air sucking device is connected with the air pipe device and performs air suction on the air pipe device. According to the blowing and sucking combined material drying system and the control method thereof, the biomass drying efficiency, combustion efficiency and heat stability are improved.

An apparatus for removing particulate matter from a biomass combustion gas stream, the apparatus having a mist-producing element that mixes a gas stream entering the apparatus with liquid droplets; a Wet Electrostatic Precipitator (WESP) section that includes ionizing electrodes that electrically charge the particulate matter and the intermixed liquid droplets and collecting surfaces under the influence of an electrical field which attract and remove electrically-charged particulate matter and intermixed liquid droplets from the gas stream; and a scrubbing section that provides for additional scrubbing of the gas.

The invention discloses a portable picnic biomass-burning warming furnace which comprises a furnace body and a furnace hearth. The furnace hearth is arranged in the furnace body, surrounded by the wall of the furnace hearth and communicated with a feeding hopper; the lower part of the furnace hearth is provided with a grate and an ash hopper, and the upper part is provided with a burner; the upper opening of the burner is provided with a burning basin; an air preheating and flowing cavity is formed between the shell of the furnace body and the wall of the furnace hearth; and a plurality of secondary air inlet holes are disposed on the shell of the furnace body. The portable picnic biomass-burning warming furnace does not need to be provided with a smoke pipe and a fan, is compact and portable, is easy to manufacture, simple in operation, and low in production and use cost, can burn various bulk biomass such as straw and tree branches which do not need to be fine processed on the spot fully without smoking, can be used for cooking and warming and is suitable for popularization.

The invention discloses a heat transfer compounding integrated furnace for biomass burning. The furnace comprises a steam boiler, a smoke vent of the steam boiler is sequentially communicated with a hot blast heater and a hot water furnace, the hot water furnace is communicated with a flue gas emission and flue gas waste heat recycling device, one fan is needed by whole equipment, therefore the production cost can be saved; furthermore, the smoke exhaust way of a traditional flue can be changed by the flue gas emission and flue gas waste heat recycling device, so that energy saving can be realized, and the dynamics of environmental protection can be improved; in addition, by adopting the scheme provided by the invention, the heat transfer compounding integrated furnace is novel in structure, convenient and quick to ignite, safe and convenient for fuel transportation and high in heat efficiency, and the production cost can be greatly reduced.

The invention relates to a method and a device for producing syngas by combustion and gasification of double cylinders, which comprises a combustion furnace and a gasification furnace in a double-cylinder structure, as well as a matching indirect gasification device comprising a feeding system, a gas-solid separation system, a heat recovery utilization system and the like, wherein the combustion furnace constitutes an inner cylinder of the device, the gasification furnace is positioned in an annular space between an outer cylinder and the inner cylinder, and the reaction control of the gasification furnace can be implemented by zoning. The supply of materials is realized by a hopper, a feeder, a driving gear, a rotating disc and the like, and the materials in the hopper are sent onto the rotating disc in the gasification furnace via the feeder and respectively sent to feeding valve ports of the combustion furnace and the gasification furnace via the rotating disc, thereby realizing the distribution and the transportation of the materials. The invention provides an indirect gasification method with higher efficiency and a compact integrated device, and the device has high reliability and high utilization efficiency of energy, and can be used for directional gasification of coal or biomass, or be used as a matching device for producing combustible gas with high calorific value through combustion of the coal and the biomass.

A novel burner-type biomass burning machine adopting sleeves and a moving grate mainly comprises a front reaction bin and a rear auxiliary control box, wherein the front reaction bin is divided by four layers of sleeves into a gasification bin, a gasified gas collecting and premixing bin, a fixed carbon burnout bed, a quaternary air distribution chamber and the like; fuel sufficiently reacts in all stages after entering the burning machine and before being discharged out of the burning machine in cooperation with the auger grate under the multistage air distribution function of a combustion air fan; the rear auxiliary control box comprises the combustion air fan, an air distribution header, a transmission motor, a comprehensive control system, an igniter and other auxiliary devices. The burning device adopts a relatively advanced and manure gasification combustion technique, reflects relatively greater industrial perspectiveness, is a novel biomass heat energy application technique which is clean, efficient, energy-saving, environment-friendly, stable in operation, simple and convenient to operate and wide in fuel adaptability, can be widely applied in clean heat energy equipment in distributive energy centers of new-type urbanization and regional industrial parks in China and can bring in remarkable economic and social benefits.

The invention belongs to biomass burning machines and relates to an intelligently-controlled flue-cured tobacco biomass burning machine, in particular to a biomass particle burning machine structure technology applied to tobacco flue-curing chambers of large dense type flue-curing chambers and used for accurately controlling the burning state according to a tobacco flue-curing curve. When feeding of a bin of the intelligently-controlled flue-cured tobacco biomass burning machine is conducted, a top plate is taken off, biomass particle fuel is poured into the bin, a starting button on a lower burning machine control panel is pressed, an automatic feeding motor starts to work, fuel is sent into a burning chamber, an automatic ignition device works, fuel is ignited, a centrifugal fan is started, air is sent into the burning chamber for burning supporting, an automatic coke removing device works after certain time, and waste slag obtained after burning is output out of the burning chamber. The biomass burning machine and a tobacco dense flue-curing chamber control instrument are in interlocked control, automatic feeding and automatic coke removing of the burning machine are controlled according to the tobacco flue-curing curve, and accurate control over tobacco flue curing is achieved. Due to the height difference between an automatic feeding device and the bottom of the burning chamber, the backfire and backdraught phenomenon can be effectively prevented.

The invention discloses a high-chlorine biomass and coal co-utilizing system with low-chlorine-corrosion and low-mercury discharge and a method. The system comprises a coal-fired boiler system, wherein the coal-fired boiler system comprises a coal-fired boiler (1) with a boiler flue (11); the system is further provided with a biomass combustion furnace system; the combustion furnace system comprises a biomass combustion furnace (3) with a combustion furnace flue (7); an air pre-heater (4) with a cold air inlet (8), a hot air outlet and a pipeline (6) is arranged in the middle of the biomass combustion furnace flue; the smoke generated by the biomass combustion furnace flows to the air pre-heater (4) and is sent to the coal-fired boiler flue (11); a recycling flue (2) is arranged at the outer side of the biomass combustion furnace flue, wherein the inlet and the outlet of the recycling flue are arranged in the front and back sides of the air pre-heater; and the recycling flue is provided with a circulating fan (9). According to high-chlorine biomass and coal co-utilizing system with the low-chlorine-corrosion and the low-mercury discharge and the method, corrosion on high-temperature heating surface of coal powder furnace by CI (chlorine) released by biomass can be avoided; and meanwhile, the oxidation and granulation of mercury in the smoke can be accelerated by CI in the biomass, so that high temperature corrosion is avoided and the discharge of single substance of mercury is reduced.

The invention discloses a biomass ash-based semidry process desulfurization and denitrification system and method. The biomass ash-based semidry process desulfurization and denitrification system comprises an oxidation device, a semidry process purification tower, a dust collector and a chimney, wherein both the oxidation device and a biomass conbustion fume source are communicated with a semidry process purifier; nitrogen dioxide generated after nitric oxide in fume is oxidized by an oxidant in the oxidation device, and sulfur dioxide in the fume, are absorbed by the biomass ash in the fume, and then desulfurization and denitrification of the fume are achieved; the dust collector is positioned at the downstream of the semidry process purifier and is used for separating and removing the biomass ash in the fume; the chimney is positioned at the downstream of the dust collector and is used for discharging the fume after the dust is removed. Compared with the conventional desulfurization and denitrification technique, the biomass ash-based semidry process desulfurization and denitrification system is free of oxidant or massive spraying alkaline water, and has the advantages of being high in removal efficiency, free of secondary pollution and other resource consumption, and the like.

The invention discloses a compound additive for inhibiting alkali metals from being transferred to a gaseous phase in a biomass combustion process. The compound additive is prepared from active components and auxiliary materials, wherein the active components are Al2O3, kaolin and (NH4)2SO4 in a weight ratio of (10-25): (40-60): (20-35). The compound additive disclosed by the invention can be used for inhibiting alkali metals from being transferred to the gaseous phase in the biomass combustion process and preventing the alkali metals from generating low-melting-point co-melts and eutectic in a molten condition in the combustion process, so that the problems that coking and slagging in the existing biomass boiler happen and the heat efficiency is low and the like are solved. The invention further discloses a preparation method of the compound additive. The preparation method is concise and low in cost. The invention also discloses an application of the additive in the biomass combustion process. The compound additive applied to biomass combustion is small in addition and low in investment cost.