27 results about "Biomass combustion" patented technology

The present invention provides a mortar composition for seaweed bed creation that can significantly reduce the carbon dioxide emission intensity per unit of seaweed bed creation blocks. [Solution] A mortar composition for creating seaweed beds comprising a binder, fine aggregate, and an alkaline stimulant, wherein the binder comprises blast furnace slag fine powder, the fine aggregate comprises main ash of biomass combustion ash, and the alkaline stimulant comprises fly ash of biomass combustion ash.

This invention discloses a bamboo-based plant dust fuel, its preparation method, and its application. The fuel is made from bamboo processing residues such as bamboo shavings and bamboo powder through crushing, drying, and sieving. Its particle size distribution is between 60 and 325 mesh, with a moisture content of less than 12 wt%, ash content of less than 5 wt%, and volatile matter content of more than 70 wt%. By precisely controlling key physical properties, this invention effectively solves the problems of low combustion efficiency, easy slagging, and high pollution associated with existing bamboo fuels. This fuel has the advantages of easy ignition, complete combustion, high calorific value, and low ash residue. Its preparation process is simple and low-cost, providing an effective way to utilize bamboo processing residues for high-value applications. It can be widely used as a solid fuel in various biomass combustion equipment.

This invention relates to a biomass combustion device for a pulverized coal boiler and its operating method. The biomass combustion device includes a furnace, a pulverized coal burner group, and a biomass burner group. The pulverized coal burner group is arranged in layers along the height of the furnace, independently located in the lower, middle, and upper layers of the furnace. The biomass burner group is positioned above each layer of the pulverized coal burner group. This invention achieves efficient and stable operation of pulverized coal and biomass co-firing through innovative structural modifications to the biomass burner and optimized design of the entire co-firing system. This invention innovatively designs nine multi-layer combination opening modes for the biomass burners, combined with different arrangement forms, to adapt to different operating conditions such as high boiler loads, flexibly adjusting the flame field and reburning zone characteristics, and balancing stable combustion, burnout rate, and NO₂. x The inhibitory effect is adapted to different environmental protection and efficiency requirements.

The utility model relates to the technical field of biomass combustion machine discloses automatic deslagging combustion machine of biomass water -cooled evaporation, including base no.

The utility model relates to combustion furnace waste gas treatment technical field discloses a kind of waste gas treatment equipment for biomass combustion furnace, including purification tank, the heat exchange cylinder is fixedly connected in the lower end of purification tank inner chamber, the serpentine heat exchange pipe is equipped at the center position of heat exchange cylinder inner chamber, the air inlet pipe is interconnected in the bottom end of one side of heat exchange cylinder, and air inlet pipe one end extends to purification tank outside through purification tank, and air inlet pipe gas outlet is interconnected with serpentine heat exchange pipe air inlet end, the filter cylinder is detachably nested in the top end of purification tank;The utility model can stir water body to improve heat exchange efficiency when heat exchange, realize waste gas heat is fully recovered, and simultaneously drive cleaning assembly to clean filter cylinder and conical guide plate in stirring process, so that dust is gathered and automatically falls into collection box through discharging chute, effectively reduce cleaning difficulty, improve the convenience and use effect of waste gas treatment.

The present application relates to the technical field of boiler, a coal and biomass coupling combustion device with fly ash supplementing, wherein the coal and biomass coupling air and powder channel is sleeved outside the central air pipe, the central air pipe and the output end of the coal and biomass coupling air and powder channel are arranged in the same direction and coaxially, the supplementary primary air and fly ash gas flow channel is sleeved outside the coal and biomass coupling air and powder channel, and the output end of the supplementary primary air and fly ash gas flow channel and the coal and biomass coupling air and powder channel are arranged in the same direction and coaxially, the device utilizes fly ash to directly participate in the biomass combustion process, accurately acts on the alkali metal migration process, and further weakens the slagging property of the heating surface of the coal and biomass coupling power generation boiler. The present application further provides a coal and biomass coupling combustion system with fly ash supplementing.

This invention relates to the field of straw treatment technology, specifically a mobile high-temperature roasting and micro-carbonization in-situ straw return-to-field device. The device includes a furnace chamber, inside which is a drum body. A feeding and ignition mechanism is mounted on the surface of the biomass combustion furnace body. A high-efficiency combustion mechanism is installed inside the furnace chamber, and a waste gas treatment mechanism is installed inside the exhaust gas purification box. This invention, by integrating high-temperature roasting and micro-carbonization technology, solves the problems of high processing costs, low in-situ field treatment efficiency, insufficient heat utilization, and substandard exhaust emissions in existing technologies, achieving efficient, clean, and high-value in-situ straw return-to-field utilization.

This invention provides a soil modifier that allows for the efficient use of woody biomass combustion ash in high-volume processing. [Solution] The soil modifier is a soil modifier that modifies soil, wherein the soil has a water content of 100% or more, contains woody biomass combustion ash, and the woody biomass combustion ash is fly ash.

The utility model provides a kind of heat exchange plug rod structure of increasing heat exchange fin, it is related to heat exchange equipment technical field, including water pipe mechanism, water pipe mechanism is hollow structure, and the outer circumferential surface of water pipe mechanism is fixedly connected with heat dissipation fin, solve the heat exchange structure for the biomass combustion furnace of current, there is often insufficient heat exchange area, water flow in heat exchange pipeline flows gently, leading to the problem of low heat exchange efficiency, it is difficult to fully utilize the heat generated by biomass combustion, the problem of affecting the energy utilization efficiency of biomass combustion furnace, the flow state of water flow is changed by the shunt baffle on the limiting plug rod and screw conveyor, the gas outlet hole of shunt baffle transports the gas after evaporation, screw conveyor makes gas form turbulent flow, break the condition of gas gentle flow, enhance the heat exchange efficiency of gas and water pipe mechanism and limiting plug rod, to fully utilize the heat generated by biomass combustion, improve the energy utilization efficiency of biomass combustion furnace.

The embodiment of the present application provides a kind of biomass combustion atmospheric pollutant parameter information prediction method and device, the method comprises: obtaining the fire point monitoring data corresponding to first biomass combustion;According to the fire point monitoring data corresponding to first biomass combustion and pollutant diffusion model, the pollutant diffusion simulation data corresponding to first biomass combustion is obtained;Pollutant diffusion simulation data includes the diffusion position of pollutant and the diffusion time corresponding to each diffusion position;According to the diffusion position of pollutant, diffusion time and pollutant prediction model, the pollutant parameter information corresponding to each diffusion position at any time is predicted.The method of the embodiment of the present application predicts the change condition of the parameter information of atmospheric pollutant of biomass combustion with diffusion time by pollutant prediction model, realizes the prediction of the parameter information of atmospheric pollutant of biomass combustion.

This invention discloses a method and apparatus for ladle combustion with oxygen-CO2-biomass. The method includes the following steps: the main combustion gas injection flow rate is gradually increased from 50%-70% of the designed maximum flow rate to 100%; when the oxygen volume fraction in the combustion zone decreases to 0.5%-1.5%, biomass is injected into the combustion zone at a preset initial amount using CO2 as the carrier gas, and the oxygen volume fraction in the oxygen-enriched gas is 80%-100%; after the ladle lining temperature reaches 600℃-750℃, the main combustion gas temperature is reduced... The gas injection flow rate is increased to 40%-70% of the design maximum flow rate, and the biomass injection rate is increased to 70%-100% of the maximum value, so that the heat of biomass combustion accounts for 20%-60% of the total heat supply in the combustion zone, and radiative heat transfer is enhanced. When the ladle lining temperature approaches the target baking temperature of 1000℃-1100℃, the main gas injection flow rate is gradually increased to 70%-100% of the design maximum flow rate, while the biomass injection rate is reduced to 0-60% of the maximum value, and the CO2 carrier gas injection flow rate is reduced simultaneously. The technical solution of this invention aims to balance combustion stability, radiative heat transfer efficiency, and energy conservation and emission reduction requirements.

This utility model discloses a cyclone separator for a biomass circulating fluidized bed boiler, comprising a flue gas inlet section, a gas-solid two-phase separation section connected to the flue gas inlet section, a flue gas outlet section connected to the top and bottom of the gas-solid two-phase separation section respectively, and a solid return section. The solid return section includes multiple coaxially connected and fixedly connected solid return straight sections and multiple solid return conical sections, which are arranged at intervals in the vertical direction. Flue gas flows in from the flue gas inlet section, rotates along the inner wall of the gas-solid two-phase separation section, and achieves gas-solid two-phase separation through centrifugal force. The gas phase flows out through the flue gas outlet section, and the solid phase is returned from top to bottom through the solid return section. Through segmented and optimized solid return path and gas-solid separation flow field, the intermittent blockage problem caused by alkali metal adhesion in traditional cyclone separators is solved, avoiding forced boiler load reduction or shutdown. It is especially suitable for biomass combustion scenarios with complex fuel types and variable ash composition.

This application relates to a chemical looping combustion device and method using biomass as fuel, aiming to suppress cold-end deposition and fouling caused by the volatilization and migration of alkali metal / chlorine components during biomass combustion, as well as slagging and agglomeration of ash at high-temperature heating surfaces. The biomass-fueled chemical looping combustion device includes an air reactor and a fuel reactor, which form an oxygen-carrying circulation loop through an overflow return feed. Multiple adsorbent inlets connected to the furnace of the fuel reactor are installed along the upper part of the fuel reactor for staged adsorbent injection to capture and fix the alkali metal vapors released during combustion, thereby reducing the risk of deposition of alkali metal vapors during flue cooling. Simultaneously, the ash-carrying bed material is dispersed and returned to the dense phase zone of the air reactor through a return feed unit to reduce local ash concentration, and particle scouring in the dilute phase zone achieves self-cleaning of the heating surfaces, reducing low-melting-point ash slagging and bed material agglomeration.

The application discloses a raw material crushing device for biomass combustion particles and relates to the technical field of biomass combustion raw material crushing. The raw material crushing device comprises a main body mechanism, the main body mechanism comprises a crushing shell, supports are fixedly installed on the bottom surface of the crushing shell, a material shell is fixedly and communicatively arranged in the crushing shell, a cutter adjusting mechanism is arranged in the crushing shell, the cutter adjusting mechanism comprises a spacing adjusting unit, and the spacing adjusting unit is located in the crushing shell. The raw material crushing device for biomass combustion particles can change the working spacing between cutters without stopping and disassembling the equipment according to the crushing particle size requirements of different biomass raw materials, can adapt to coarse crushing operation of large-size fluffy raw materials and fine crushing processing of small-particle raw materials, and can also adjust the spacing to a proper spacing according to the actual state of dry and wet mixed raw materials.

This utility model discloses a biomass pellet chain grate steam boiler, including a boiler body. A first grate shaft and a second grate shaft are respectively installed in the inner cavity of the boiler body. One end of the first grate shaft is connected to the output end of a servo motor. Grate mounting rollers are fixedly installed on the first and second grate shafts respectively. A chain grate is sleeved between the two grate mounting rollers. Ash discharge shafts are symmetrically installed at the bottom of the boiler body, and conveying rollers are symmetrically installed on the ash discharge shafts. An ash discharge steel belt is sleeved between the two conveying rollers. Beneficial effects: This utility model, with its boiler body, chain grate, ash discharge steel belt, and ash discharge door, utilizes a rotating chain grate to prevent the accumulation of ash generated during biomass combustion and can automatically collect the generated ash, facilitating subsequent unified cleaning and transportation. This reduces the frequency of opening and closing the ash discharge port, reduces energy loss, and enhances practicality.

The utility model provides a kind of stove core split type biomass combustion stove, including furnace body, the cavity is arranged in the furnace body, the grate and the stove core assembly located above grate are arranged in the cavity, the stove core assembly includes furnace cylinder and filter disc, the number of the furnace cylinder is at least three and is stacked distribution up and down, a plurality of air windows are arranged around distribution between adjacent furnace cylinder, filter disc close to bottom is overlapped in the furnace cylinder, the filter hole on the filter disc of low height is less than the filter hole on the filter disc of high height, in the utility model, the air window around distribution is arranged between stacked furnace cylinder, oxygen content in each furnace cylinder is sufficient after air cylinder enters stove core assembly through air window, greatly improve the efficiency of biomass particulate combustion, and the split type structure of the stove core assembly is convenient to replace, reduce use cost.

This utility model provides a heavy-duty scraper automatic ash removal device for biomass burners, relating to the field of burner technology. It includes: a housing, with a storage bin fixedly connected to the bottom of the higher side of the housing. A sealing door is rotatably connected to the bottom of the storage bin via a hinge. A drain valve is located near the bottom of the housing. This device, through its ash removal components, can remove the cooled residue from the removal housing without manual cleaning, reducing labor intensity, preventing burns to operators, and improving safety.

To provide a method for manufacturing fertilizers that can quickly manufacture fertilizers that are easily spreadable while a simple and low-cost. The method for manufacturing fertilizers according to the present invention comprises a water content adjustment process for adjusting a water content to more than 8% and less than 65% by mixing organic sludge generated in a process of sewage treatment or wastewater treatment and biomass combustion ash, which is combustion ash of biomass, at a weight ratio of the organic sludge of more than 1 and less than 9 when the total weight of them is 10. Also, it is more preferable to adjust the water content to 22% to 43% by mixing the organic sludge and the biomass combustion ash at a weight ratio of the organic sludge of 3 to 6.

The utility model provides a kind of biomass combustion machine movable grate two-section type device, it is related to combustion machine movable grate device technical field, and it includes: two racks, between two racks, it is equipped with several mounting rods respectively, grate is uniformly connected on mounting rod, several mounting rods and several grates can be divided into first interval section and second interval section, this kind of combustion machine movable grate divides grate into two sections, by uniform speed swing component can make the grate of first interval section uniform speed activity, make biomass fuel complete gasification, produce a large amount of calorific value, by differential speed swing component makes the grate of second interval section slow speed activity, so that the red carbon of biomass slowly moves on grate, there is sufficient time to contain the red carbon of biomass complete combustion ash, using two different speed activities grates, make biomass fuel complete combustion on grate, save energy, improve equipment use efficiency.

The application is suitable for the technical field of fabricated building, and provides a modified polystyrene particle fabricated floor support plate and a modular production method thereof, including the following steps: loading polystyrene particle raw materials and boiler biomass combustion materials; foaming the polystyrene particle raw materials into foam particles; making the modifier fully contact with the foam particles through a double-shaft double-spiral-blade self-control modification system to complete uniform modification; adding the modified foam particles into a full-automatic stirring system to prepare modified polystyrene particle concrete, and conveying the modified polystyrene particle concrete to a designated pouring position of a robot through a self-suction pump and a rubber hose; meanwhile, welding of truss reinforcement on a formwork is completed; formwork pouring and surface treatment are performed, and finally, a modified polystyrene particle fabricated floor support plate product is obtained. The application realizes uniform modification of the polystyrene particles, enhances the strength of the floor support plate, reduces the cost, improves the production and construction efficiency, and simultaneously has a significant heat preservation, sound insulation and noise reduction function.

The utility model discloses a kind of biomass combustion heat-conducting oil boiler of high-temperature pyrolysis waste gas, including heat exchange chamber, combustion chamber, gas cracking device, heat-conducting oil coil, fuel conveying device;Heat exchange chamber is fixedly connected above combustion chamber, and heat exchange chamber top is equipped with smoke outlet II, bottom inlet port;Heat-conducting oil coil is set in heat exchange chamber inside, gas cracking device is connected with heat exchange chamber two sides by passing between heat-conducting oil coil;Fuel conveying device is fixed in heat exchange chamber one side by support support, and fuel conveying device bottom is fixedly connected with inlet port.The utility model mixes mixed gas formed after oil refining evaporation waste gas and flue gas of boiler combustion by gas cracking device and is transported to heat-conducting oil boiler to carry out high-temperature pyrolysis, effectively solve the environmental protection and peculiar smell problem in oil refining process, and the heat of mixed cracking gas after high-temperature pyrolysis can also be released and waste heat is recycled.

The application discloses a small household straw in-situ drying and clean combustion device, which is mainly composed of a biomass feeding system, a biomass combustion and heat recovery system and a flue gas treatment system. The core of the device is that the bunker of the biomass feeding system adopts a double-wall structure, and the recirculated flue gas is used to flow in the interlayer to indirectly exchange heat with the straw in the bunker to preheat and dry the straw and improve the calorific value of the straw; the biomass combustion and heat recovery system adopts a reciprocating grate and air staging air distribution technology, and the low-temperature recirculated flue gas after drying the fuel is sent back to the furnace to form a low-nitrogen combustion environment which is coordinated by the recirculated flue gas and the air staging. The application realizes in-situ drying and upgrading of the fuel, significantly improves the combustion efficiency, and significantly reduces the pollutant emission concentration, and is especially suitable for household clean energy utilization of the dispersed straw in rural areas.

This invention relates to a synergistic thermochemical conversion device and method based on the separation of biomass volatile matter and fixed carbon, belonging to the field of clean biomass power generation and heating. It solves the problem of poor equipment stability and high maintenance costs caused by the difficulty in synergistically suppressing coking and slagging during existing biomass combustion processes. The device includes a boiler body, the inner cavity of which is divided into a separation chamber and a combustion chamber by a partition. The partition has an air vent at the top and a solid material transport port at the bottom. A chain grate is located at the bottom of the boiler, and a fan unit is located on the side, supplying air to the separation chamber and below the chain grate, respectively. Biomass enters the separation chamber and undergoes pyrolysis and partial oxidation reactions under a gasification medium, producing tar-containing volatile matter and solid biochar. The volatile matter enters the upper part of the combustion chamber through the air vent for complete oxidation. The solid biochar falls onto the chain grate and is transported to the lower part of the combustion chamber for reduction reactions in a reducing atmosphere. This achieves the separation of volatile matter gas and solid biochar. It is used for high-temperature thermochemical conversion of biomass.

The utility model discloses a kind of exhaust devices special for biological combustion furnace, it is related to the technical field of biomass combustion furnace, including exhaust pipe, the top of the exhaust pipe is fixedly installed with filter mechanism, the bottom of the exhaust pipe is fixedly installed with collection mechanism;The filter mechanism includes mounting ring.The utility model adopts the above structure, the device can effectively reduce filter screen dismounting frequency using collection mechanism, after a period of time is filtered by filter screen, rotate adjusting handle, make sleeve rotate, drive regular hexagon clamping block and connecting rod, carousel rotate, let on brush plate brush scratch clean filter screen outer surface, dust falls into collecting hopper, simultaneously, connecting rod drives lower brush plate brush scratch collecting hopper, prevent dust accumulation, after cleaning, push adjusting handrail to open collecting hopper bottom, because of lower brush plate agitation, dust is automatically discharged, solve the problem that traditional device manual frequent dismounting filter screen leads to operation cumbersome, low efficiency, improve the convenience of use.

This invention relates to the field of boiler technology, and more particularly to a boiler combustion temperature control mechanism and a biomass combustion fluidized bed boiler. The technical solution includes a feeding structure, a regulator, and a power structure. The feeding structure is used to transport biomass fuel and includes a lifting pipe, an upper feeding pipe, a lower feeding pipe, and a humidity sensor. The regulator includes a valve frame, a valve plate, a hydraulic cylinder, a pump casing, a spiral heat exchange tube, and a spiral conveying pipe. It includes a furnace structure and a boiler structure. The furnace structure includes a furnace body; the boiler structure includes an annular boiler. This invention reduces the fuel moisture content and stabilizes the furnace combustion temperature by using a humidity sensor in conjunction with a waste heat drying structure. The annular boiler, suspended in the center of the furnace, expands the heating area, fully utilizes the high-temperature heat source, significantly improves fuel utilization, reduces energy consumption, and ensures efficient and stable boiler operation.

This invention relates to the field of power generation boilers and discloses a biomass oxygen-enriched circulating combustion power generation boiler device adapted for carbon capture. The device includes a biomass boiler body with a fluid tank inside and a concentration sensor installed inside. By setting up an oxygen-enriched combustion aid pipe, an external supply of a nitrogen-free mixture of oxygen and carbon dioxide is delivered to the biomass boiler body through the oxygen-enriched combustion aid pipe. Combined with closed-loop regulation by a flow control valve and a concentration sensor, the oxygen concentration in the furnace is stably locked at approximately 30%. Through precise control of the nitrogen-free combustion aid medium and synergistic regulation of anti-coking, the generation of nitrogen oxides is suppressed at the combustion source, and the concentration of carbon dioxide in the flue gas is significantly increased to adapt to carbon capture. Simultaneously, the impact of alkali metal coking on the boiler's heat exchange efficiency is effectively suppressed, ensuring clean, efficient, and stable operation of biomass combustion power generation, and reducing carbon capture costs and equipment maintenance costs.