941 results about "Biomass fuels" patented technology

The invention discloses a gas-solid two-phase flow numerical simulation method for bidirectional coupling of non-spherical particles and a flow field, and belongs to the technical field of biomass fuel utilization, and the method comprises the following steps: constructing a flow field model in Fluent, and correspondingly setting an initial boundary condition of the flow field; setting initialization conditions of non-spherical particles in the UDF; establishing an inertial coordinate system and a particle coordinate system, and coupling the two coordinate systems; and obtaining a translational motion table / rotational motion characterization equation, determining the position and direction of the particles by solving the two equations, correcting flow field parameters by using the positions and direction of the particles, and iteratively calculating particle motion parameters to realize bidirectional coupling of the non-spherical particles and the flow field. According to the numerical simulation method, through Fluent-UDF numerical simulation, the interaction between the non-spherical particles and the flow field can be accurately simulated, the accuracy of gas-solid two-phase flow numerical simulation is guaranteed, understanding of the complex process of direct combustion coupling of biomass particles of a coal-fired boiler is deepened, and theoretical support is provided for optimization of combustor design and the combustion process.

The invention discloses a biomass pyrolysis coupling magnesite calcination synergetic poly-generation method and system. The method mainly comprises the following steps: pyrolyzing a biomass raw material in a biomass pyrolyzing furnace to generate biomass charcoal and biomass gas; biomass gas is fed into the combustion chamber to be combusted, one part of combustion products are fed into the biomass pyrolyzing furnace to supply heat, and the other part of the combustion products are fed into the heat exchanger; feeding the magnesite into a calcining furnace for high-temperature smelting to generate carbon dioxide and magnesium oxide; high-temperature carbon dioxide gas exhausted by the calcining furnace is used for drying and preheating magnesite, one part of the cooled gas is recycled, one part of the cooled gas is fed into the biomass pyrolyzing furnace to react with biomass charcoal, and the other part of the cooled gas enters the heat exchanger to be heated and then enters the calcining furnace. According to the method, light calcined magnesia and carbon dioxide capture are achieved, joint production of high-added-value multi-aperture biomass charcoal and a high-purity carbon dioxide product is generated, biomass fuel which is zero-carbon energy is used for replacing traditional fossil energy, and low-carbon even zero-carbon carbonization in the initial smelting link of magnesite is achieved.

The invention discloses a coal and biomass blending combustion double-layer optimization operation method considering dynamic carbon absorption and economy cooperation. The method comprises the steps that coal and biomass fuel data and operation parameters are obtained; based on the fuel data and the operation parameters, a double-layer optimization model is constructed, the double-layer optimization model comprises an upper layer model and a lower layer model, the upper layer model is used for minimizing net carbon emission, and the lower layer model is used for minimizing the total operation cost of the system; based on the fuel data and the operation parameters, obtaining constraint conditions of the double-layer optimization model; according to the double-layer optimization model and the constraint conditions, a dynamic carbon absorption-economical efficiency collaborative model is constructed, the dynamic carbon absorption-economical efficiency collaborative model is used for achieving dynamic balance between carbon emission minimization and the total operation cost, and a scheduling optimization scheme of coal and biomass blending combustion is obtained. The problem that only mixed combustion of biomass fuel and coal with a fixed blending combustion ratio can be adopted when a coal-fired unit carries out blending combustion on biomass for power generation at present can be solved.

The utility model discloses a coupled biomass chemical looping combustion system which comprises an air reactor, a cyclone separator, a return feeder and a fuel reactor, the air reactor is communicated with the return feeder through the cyclone separator, the air reactor is configured to complete an oxidation reaction based on the received oxygen carrier and air, the generated oxidation-state oxygen carrier is conveyed to the cyclone separator under the driving of flue gas, and the corresponding oxidation-state oxygen carrier is conveyed to the return feeder through the cyclone separator; the return feeder is respectively communicated with the air reactor and the fuel reactor through a material conveying pipe, the input oxidation-state oxygen carrier is input into the air reactor and / or the fuel reactor by the return feeder, and the fuel reactor completes an oxidation-reduction reaction based on the received oxidation-state oxygen carrier and biomass fuel; the fuel reactor is used for inputting the reduced oxygen carrier into the air reactor through a return pipe; and the exhaust port of the fuel reactor is provided with a carbon dioxide trapping device so as to complete trapping of discharged carbon dioxide.

The invention discloses a multi-fuel combustion gas boiler coupling biomass direct combustion power generation method, and belongs to the field of biomass utilization. According to the method, after basic characteristics, combustion characteristics and dynamic characteristics of fuel are analyzed, a numerical model is established; then, calculating the numerical model of the blending combustion biomass fuel, and determining the optimal biomass fuel fineness, nozzle position and blending combustion proportion; and according to a numerical simulation result, corresponding process system design optimization and combustion adjustment measure formulation are carried out. According to the method, on the basis of raw material basic physicochemical and combustion characteristic analysis, a coal-biomass-coke oven gas large-difference fuel multi-element mixed combustion model is constructed, and on the basis of numerical simulation calculation, safe and stable mixed combustion of biomass fuel in the positive-pressure direct-fired pulverized coal boiler for large-proportion mixed combustion of surplus coal / coke oven gas of an iron and steel plant is achieved.

The invention discloses an integrated biomass unattended energy station, and belongs to the field of power generation equipment, the integrated biomass unattended energy station comprises a biomass boiler and a recycling bin, the lower side of the outer surface of the recycling bin is fixedly connected with a circulation sleeve, the outer surface of the upper end of the biomass boiler is fixedly connected with a gas guide pipe, and the lower end of the gas guide pipe is fixedly connected with the outer surface of the circulation sleeve; an evaporation assembly used for producing water vapor is arranged on the inner side of the recycling box and comprises a first supporting plate fixedly connected with the inner surface of the recycling box, and an evaporation pipe is fixedly connected with the outer surface of the upper end of the first supporting plate. By arranging the evaporation assembly, smoke makes contact with the outer surface of the evaporation pipe so that the evaporation pipe can be heated, water continues to be heated and evaporated through waste heat of the smoke of the biomass boiler, and therefore the generation amount of steam can be increased, and reduction of heat loss of the biomass boiler is facilitated; therefore, the energy utilization efficiency of the biomass fuel can be improved.

The invention relates to the technical field of biomass fuel processing, and discloses biomass fuel production and processing equipment, which comprises a granulation box body, a flat die rotationally connected in the granulation box body, a compression roller arranged above the flat die, a rotating assembly mounted at the bottom of the granulation box body and used for driving the flat die to rotate, and a control assembly mounted at the bottom of the granulation box body and used for controlling the compression roller to rotate, the telescopic assembly is mounted on the side wall of the granulating box body and is used for driving the compression roller to move up and down and adjusting the distance between the flat die and the compression roller; and the spacing control system is in communication connection with the control end of the telescopic assembly and is used for accurately controlling the spacing between the flat die and the compression roller. The distance control system obtains raw material characteristics, equipment states and particle quality data in real time, constructs a multi-dimensional evaluation model and dynamically adjusts the distance between the pressing roller and the flat die, the problems that manual adjustment is low in precision and high in machine blockage risk are solved, intelligent and accurate control is achieved, safe operation of equipment is guaranteed, and the particle quality is optimized.

The invention relates to the technical field of green fuel preparation, and discloses a method for preparing green fuel by coupling biomass gasification and combustion, which comprises the following steps: (1) separating N2 from air, taking a part of residual gas as a gasification agent, and taking the other part as combustion gas; (2) carrying out chemical chain gasification on the biomass through steam under the condition of a gasifying agent to obtain H2 and CO2; (3) carrying out chemical looping combustion on the biomass under the conditions of an oxygen carrier and combustion gas to obtain CO2; (4) electrolyzing a part of obtained CO2 by using electric energy obtained by biomass chemical looping combustion to obtain CO; (5) synthesizing N2 and H2 to prepare a green NH3 product; and synthesizing H2, CO2 and CO to prepare a green methanol product. According to the method, a biomass fuel chemical looping power generation and biomass chemical looping gasification coupling technology is applied, a carbon source in biomass is fully utilized, meanwhile, green NH3 and methanol products are prepared, and efficient utilization of resources is achieved.

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

The 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.

The invention discloses a biomass fuel rod and a production method and application thereof, and belongs to the technical field of biomass fuels, the biomass fuel rod comprises the following components by mass: 60-80 parts of a biomass raw material, 10-20 parts of a binder, 1-5 parts of a combustion improver, 3-8 parts of a sulfur and chlorine fixing agent, 1-3 parts of a denitration agent, and 2-5 parts of an ash content regulator. The production method specifically comprises the following steps: (1) pretreatment: crushing a biomass raw material until the particle size is less than or equal to 2mm, and carrying out pretreatment by adopting baking semi-carbonization; (2) mixing: sequentially adding a binder, a combustion improver, a sulfur-fixing and chlorine-fixing agent, a denitration agent and an ash content regulator which are ground until the particle size is less than or equal to 2mm, and stirring and mixing for 5-10 minutes; (3) forming: carrying out extrusion forming by adopting a twin-screw extruder under the pressure of 15-25MPa and the temperature of 80-100 DEG C to obtain a fuel rod with the density of 1.2-1.4 g / cm < 3 >; the production method is simple and easy to implement, the combustion performance of the produced fuel rod is good, and the combustion efficiency and the environmental protection property are improved.

The invention relates to a method and a system for producing ceramsite by comprehensively utilizing coal-based solid waste. The method specifically comprises the following steps: 1) a two-step pelletizing process; 2) fluidized drying and preheating process; 3) a fluidized cooling process; and 4) application of the biomass fuel in ceramsite production. The method has the advantages that (1) when the coal-based solid waste is treated in the prior art, the (air dry basis) proportion is about 60%, and the coal gangue proportion can be increased to 70%-95%; (2) the cylinder compressive strength of the coal-based high-strength ceramsite produced in the prior art is mostly 3.0-10.0 MPa, and the cylinder compressive strength can be improved to 12.0-25.0 MPa by applying the technology, so that the requirements of the high-strength ceramsite are easily met; (3) the heat consumption (the product of the mass consumed by unit ceramsite and the accumulated value of the heat value of the ceramsite) in the prior art is averagely about 4500 KJ / kg, and the firing heat consumption of the ceramsite is reduced to below 2781 KJ / kg; and (4) the main fuel of the invention is biomass fuel which is a clean and renewable energy form.

The invention relates to the technical field of biomass fuel processing, and discloses a biomass fuel raw material crushing and screening device and an operation method, the biomass fuel raw material crushing and screening device comprises a crushing box, a crushing roller, a screening drum and a guide roller; the two crushing rollers are longitudinally and rotatably installed on the two sides of the interior of the crushing box through rotating shafts, staggered crushing blocks are arranged on the outer surfaces of the two crushing rollers, and a driving motor is installed on the portion, at the front ends of the crushing rollers, of the outer surface of the crushing box and is in transmission connection with the crushing rollers through the rotating shafts. Screen holes with the same size are evenly formed in the surface of the screen drum. The screen drum capable of being driven to rotate is arranged on the outer rings of the two crushing rollers, raw materials fall into the screen drum after being crushed so as to be screened by the rotating screen drum, and when the screen drum rotates, large raw materials can be brought to the position between the upper crushing rollers to be crushed again through the poking rod with the inclined inner wall, so that the large raw materials are crushed again, and the crushing efficiency is improved. And large raw materials are prevented from accumulating on the bottom surface of the screen drum to affect the screening effect.

The utility model relates to the field of energy recovery, and discloses a mixing device of biomass fuel for sintering, which comprises a bottom plate, both ends of the surface of the bottom plate are fixedly connected with support frames a, the surface of the rear end of the bottom plate is provided with a shaking component, and the inner walls of one ends, far away from the bottom plate, of the two groups of support frames a are slidably connected with guide rods; a mixing tank is fixedly connected between the two groups of guide rods, a mixing mechanism is arranged on the inner wall of the mixing tank, the mixing mechanism comprises a half gear ring, three groups of gears are rotatably connected to the top end of the outer wall of a connecting disc, and a plurality of groups of stirring rods are fixedly connected to the outer wall of a rotating shaft. According to the biomass fuel mixing device, the mixing mechanism is arranged, so that the stirring rod can alternately rotate clockwise and anticlockwise, fuel is fully stirred and scattered, it is ensured that different types of biomass fuel can be evenly mixed, the fuel quality is improved through the efficient mixing mode, and a good foundation is provided for the subsequent combustion process.

The invention relates to a manufacturing method of a sludge-biomass fuel rod. The manufacturing method comprises the following steps: S1, sludge pretreatment: dehydrating sludge; s2, sludge crushing treatment: performing crushing treatment on the dewatered sludge to obtain sludge particles with the particle size of less than or equal to 3mm; s3, sludge and biomass are mixed, wherein the sludge particles obtained in the step S2 and biomass particles are stirred and mixed according to the mass ratio of (10-90): (90-10), and a sludge-biomass forming raw material is obtained; s4, sludge-biomass raw material extrusion forming: performing extrusion forming on the sludge-biomass forming raw material obtained in the step S3 to obtain the sludge-biomass fuel rod. Compared with the prior art, the prepared sludge-biomass fuel rod has better combustion characteristics and stability. The sludge can play a bonding role in the fuel rod forming process, a compact body structure is conveniently formed, and forming is convenient; and the biomass is beneficial to improving the combustion characteristic of the fuel rod.

The invention discloses an intelligent monitoring system for multi-source data fusion of a biomass intelligent power plant, relates to the technical field of intelligent monitoring, and solves the problems proposed in the background technology. The biomass multi-source data acquisition module is used for acquiring biomass fuel characteristic data, equipment operation data, environment-friendly emission data and raw material supply chain data in real time; the data preprocessing and order reduction module is used for carrying out denoising, normalization and coupling order reduction processing on the biomass fuel characteristic data and the equipment operation data; the multi-source data dynamic fusion module is used for carrying out weighted fusion on the multi-source data according to the fuel heat value, the water content and the environmental protection weight; the biomass combustion optimization diagnosis module is used for constructing a deep learning model based on the fusion data and outputting combustion efficiency optimization parameters and a fault diagnosis result; according to the method, multi-dimensional data of fuel characteristics, equipment operation, environmental protection emission and the like are integrated, through links of preprocessing, order reduction, fusion and the like, an information island phenomenon is eliminated, and scientificity and accuracy of decision making are improved.

The utility model discloses a briquetting machine for biomass fuel production, which belongs to the technical field of biomass fuel processing and comprises a briquetting box, an L-shaped support is fixed above the briquetting box, an adjusting support is fixed on a top plate of the L-shaped support, and a pressing plate is mounted on the adjusting support. A cutting assembly used for cutting biomass fuel into blocks is installed on one face of the pressing plate and comprises a guide rail arranged on the pressing plate, a plurality of sliding blocks are arranged in the guide rail in a sliding mode, a spring is fixedly connected between every two adjacent sliding blocks, and second electric telescopic rods are fixed to the two ends of the guide rail correspondingly. Output shafts of the two second electric telescopic rods are fixed to the sliding blocks located on the two sides correspondingly, and blades are fixed to the sliding blocks. According to the briquetting machine, the distance between the two adjacent blades is adjusted by starting the second electric telescopic rod, so that the size of cut blocks can be controlled; and when hard objects such as stones are mixed in the raw materials, the blade can deviate leftwards and rightwards to avoid the hard objects, and the blade is protected.

The invention belongs to the technical field of solid waste resource utilization and saline-alkali land treatment, and particularly relates to a method for synergistically repairing coastal saline-alkali land based on power plant solid waste and super arundo donax. Comprising the following steps: uniformly mixing desulfurized gypsum, fly ash and ash to obtain a composite modifier; deeply plowing the target soil, applying a composite modifier, deeply plowing again, and irrigating; super bamboo reeds are planted in the treated soil, the super bamboo reeds are made into biomass fuel after harvesting, and then the biomass fuel is conveyed to a power plant to be combusted; wherein the ash residue is ash residue obtained after biomass fuel made of super bamboo reed is fully combusted. According to the invention, a closed-loop system of solid waste improvement, plant remediation, energy recovery and ash reutilization is constructed for saline-alkali soil remediation by aiming at the formula and treatment process of the improver, the application proportion and mode, the optimized utilization of ash, the ecological remediation function of super bamboo reed and the remarkable improvement effect.

The invention provides an efficient treatment method and system for traditional Chinese medicine decoction piece wastewater, and belongs to the technical field of wastewater treatment.The efficient treatment method for the traditional Chinese medicine decoction piece wastewater comprises the steps of (1) pretreatment, (2) coagulating sedimentation, (3) pre-acidification, (4) UASB anaerobic reaction, (5) SBR aerobic treatment, (6) catalytic ozonation, (7) deep filtration and disinfection, (8) sludge treatment and (9) intelligent control. The traditional Chinese medicine decoction piece wastewater treatment system comprises a pretreatment module, a physicochemical treatment module, a biological treatment module, a sludge treatment module and an intelligent control module. Through integration of physical, chemical and biological treatment technologies, organic matters, suspended matters and chromaticity in wastewater are effectively removed, and the overall treatment efficiency and the system stability are improved; the sludge and the traditional Chinese medicine waste residues are mixed to prepare biomass fuel, waste recycling is achieved, meanwhile, biogas is recycled for power generation, energy consumption is reduced, and a'treatment-energy-resource 'closed loop is formed.

The utility model discloses a biomass fuel integrated device based on straw mixed kitchen waste, which comprises a shell, a pretreatment drying box for drying and dewatering the kitchen waste, and a crushing mechanism for crushing the straw and the kitchen waste treated by the pretreatment drying box, the stirring mechanism is used for stirring and mixing the straws treated by the crushing mechanism and the kitchen waste; the extruding mechanism 4 is used for extruding and forming the straws and the kitchen waste which are stirred and mixed by the stirring mechanism; the material storage chamber is used for buffering and storing the extruded and formed materials; and the hearth is used for combusting the formed materials. The device is reasonable in structure and is an integrated device, the equipment investment cost is low, and straw and kitchen waste can be converted into biomass fuel to be combusted only through one kind of equipment; the kitchen waste in the pretreatment drying box is dried to remove moisture through the first pipeline and the second pipeline by using the heat of the hearth, so that the operation cost can be further reduced, and energy conservation and consumption reduction are realized; and after kitchen waste in the pretreatment drying box passes through the draining holes, liquid flowing into the hearth through the second pipeline can be absorbed by stove ash in the hearth, and the treatment capacity and strength of kitchen waste sewage can be reduced.

The utility model relates to the technical field of drying equipment, in particular to a biomass fuel raw material dryer which comprises a tank body and a transverse plate, the transverse plate is fixedly connected in the tank body, a stirring mechanism is arranged in the tank body, a screening mechanism is arranged above the transverse plate, the tank body is fixedly connected with the outer wall of a feeding hopper, and the feeding hopper is arranged above the stirring mechanism. The upper surface of the tank body is fixedly connected with an air heater, the air heater is fixedly connected with one end of a pipeline, and the other end of the pipeline is fixedly connected with an annular pipe. The first motor drives the rotating rod to rotate, the rotating rod drives the charging barrel to rotate, the charging barrel drives the supporting rod to rotate, the end of the supporting rod moves on the surface of the wedge-shaped disc, the height of the surface of the wedge-shaped disc is different, the wedge-shaped disc drives the supporting rod to move in the left-right direction when the supporting rod rotates, the supporting rod drives the charging barrel to move in the left-right direction, and the charging barrel moves in the left-right direction when the charging barrel rotates. And the biomass fuel raw materials can be uniformly stirred, so that the drying effect of the biomass fuel raw materials is better.

The invention discloses an efficient biomass oil recycling and separating device, and belongs to the field of biomass fuel pyrolysis equipment. An efficient biomass oil recycling and separating device comprises a stainless steel cylinder, a spiral pipe surrounded by a stainless steel hollow pipe, a condensed liquid outflow pipe, a liquid containing barrel, a water inlet pipe, a water outlet pipe, a connecting pipe of the stainless steel cylinder, a pyrolyzing furnace gas exhaust pipe and the like. The device is characterized in that a spiral pipe surrounded by a stainless steel hollow pipe is arranged in a stainless steel cylinder, one end of the spiral pipe surrounded by the stainless steel hollow pipe is connected with a water inlet pipe, and the other end of the spiral pipe surrounded by the stainless steel hollow pipe is connected with a water outlet pipe; and the other end is connected with a gas pipe. The efficient biomass oil recycling and separating device has the advantages that gases with different boiling points can be condensed at different positions without consuming energy, and the gases are changed into pharmaceutical and chemical raw materials with high additional value.

The utility model discloses a raw material mixing device for biomass fuel processing, which comprises a support frame, a mixing box, a crushing box and a filter plate, a support seat is fixedly arranged on one side of the support frame, the mixing box is fixedly arranged above the support frame, the crushing box is fixedly arranged at the top of the mixing box, the filter plate is arranged below the crushing box, and the filter plate is arranged below the crushing box. An air cylinder is arranged on the side wall of one side of the mixing box, a material pushing plate is arranged above the filter plate, a cleaning brush is arranged at the bottom of the material pushing plate, and a material guiding plate is arranged on the side wall of the other side of the mixing box. Through the arrangement of the crushing box, raw materials are crushed by the three crushing rollers in the crushing box before entering the mixing box, and the crushing rollers can crush the raw materials with different particle sizes and hardness into particles with uniform particle sizes, so that the raw materials can be more quickly mixed with other raw materials, and the uniformity and the mixing efficiency in the subsequent mixing process are improved; therefore, the overall quality of the biomass fuel is effectively improved.

The horizontal biomass fuel boiler comprises a boiler body, supporting legs are fixedly installed at the bottom of the boiler body, a combustion chamber and a dust removal chamber are arranged at the left end and the right end of the inner side of the boiler body, and a discharging groove is formed in the bottom of the combustion chamber. According to the utility model, dust removal treatment is carried out on generated waste gas, the dust content in exhausted gas is reduced, the water level sensor can monitor the water level, so that lost water can be conveniently and timely added, accumulated dust generated in the combustion chamber can be conveniently and quickly treated, deposited dust in the dust removal chamber can be cleaned, and the dust can be effectively cleaned without large-scale disassembly and movement; labor intensity is reduced, time and labor are saved, and working efficiency is improved.

The invention discloses a boiler blending combustion biomass fuel coupling chemical looping combustion system, and particularly relates to the technical field of fuel control, the system comprises an operation monitoring module, through deploying a multi-type sensor network at a key position, real-time collecting whole flow operation data, constructing a space-time monitoring data set covering the physical and chemical process of a combustion system, and determining a combustion state of the combustion system; the reliability of data acquisition is guaranteed through signal filtering and abnormal value correction; according to the method, a multi-dimensional cooperative control framework is constructed, the six-dimensional influence coefficients are fused into the comprehensive distribution index, the distribution strategy of the fuel between the main combustion area and the chemical looping reactor is dynamically optimized, traditional single control dimension is expanded to multi-dimensional cooperative control, and the adaptability of the system to complex fuel characteristics is improved.

The invention discloses a direct carbon emission determination method for mixed combustion of fossil fuel and biomass fuel, and relates to the technical field of carbon emission, the method comprises the following steps: determining a mixed combustion mode; the multi-fuel combustion mode comprises solid and solid fuel multi-fuel combustion, solid and liquid fuel multi-fuel combustion, solid and gas fuel multi-fuel combustion, liquid and liquid fuel multi-fuel combustion, liquid and gas fuel multi-fuel combustion and gas and gas fuel multi-fuel combustion; based on the multi-fuel combustion mode, fuel consumption and an emission factor of fuel combustion are obtained, and based on the fuel consumption and the emission factor of fuel combustion, direct carbon emission is obtained through calculation; or the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient are obtained, and the direct carbon emission is calculated based on the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient. According to the method, carbon emission generated by combustion of the biomass fuel can be distinguished, and the carbon reduction effect of the co-combustion biomass fuel can be reasonably and accurately evaluated.

The invention discloses a high-strength and high-calorific-value biomass pellet fuel and a preparation method thereof, belongs to the technical field of environment-friendly biomass fuels, and provides a preparation method of the high-strength and high-calorific-value biomass pellet fuel, which comprises the following steps: drying and crushing herbivorous animal manure to obtain pretreated herbivorous animal manure; wood chips are dried and smashed, and pretreated wood chips are obtained; and mixing the pretreated herbivorous animal manure with the pretreated sawdust, adjusting the water content to 3-6% to obtain a premix, and granulating to obtain the biomass pellet fuel. According to the invention, organic wastes such as cattle and sheep manure and sawdust resources purchased from surrounding areas are organically combined to prepare the biomass pellet fuel, so that the dual goals of recycling and harmlessness can be achieved, and a feasible solution is provided for the development of clean energy.

The utility model relates to the technical field of combustors, and discloses a biomass fuel industrial combustor which comprises a hearth and a hopper located above the hearth, a feeding port is formed in the lower end of the hopper, a penetrating hole is formed in the side wall of the lower end of the hopper, and a tool apron which is located in the lower end of the hopper after being inserted into the penetrating hole is arranged in the penetrating hole. A cutter is arranged on the cutter holder, a blocking seat corresponding to the cutter is arranged on the inner wall of the lower end of the hopper, and a driving device used for driving the cutter holder to move is arranged outside the hopper. The biomass fuel cutting device has the following advantages and effects that when an operator observes that the lower end of the hopper is arched through the observation window, the driving device is started to drive the cutter to be close to the blocking base, biomass fuel is cut, the problem of biomass fuel arching is effectively solved, the cutter is contained in the first containing cavity, and the blocking base is contained in the second containing cavity; and the hopper is not interfered during normal feeding.

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 invention relates to the technical field of biomass fuel, in particular to a power station boiler blending combustion biomass fuel coupling chemical looping combustion system and method.The power station boiler blending combustion biomass fuel coupling chemical looping combustion system comprises a water electrolysis device, the water electrolysis device is connected with a fuel reactor and a second gas mixer, and the fuel reactor is connected with an air reactor; the first gas mixer is connected with the air reactor; a boiler body; the biomass crusher is connected with the boiler body, and the biomass crusher is connected with the air reactor; the boiler body is connected with the first gas mixer, oxygen generated by electrolyzing water through a renewable energy source can serve as a chemical product to be recycled; and the biomass can also be mixed with air to form oxygen-enriched over fire air, so that the combustion efficiency of the boiler during mixed combustion of the biomass is improved.