699 results about "Biomass fuels" patented technology

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 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 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 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 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 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 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 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.

The invention relates to the field of biomass fuel, in particular to a biomass fuel particle processing system and method.The biomass fuel particle processing system comprises a forming base with the upper end provided with a plurality of extrusion cavity holes, the lower end of each extrusion cavity hole extends to form a discharging hole penetrating through the forming base, the outer side of the forming base extends upwards to form a surrounding plate, and a door-shaped frame is fixed to the upper end of the surrounding plate; a lifting plate is arranged in the door-shaped frame in a lifting limiting sliding mode, a mounting plate is fixed to the lower end of the lifting plate, limiting rings are rotationally arranged at the positions, corresponding to the multiple extrusion cavity holes, of the mounting plate, extrusion shafts are fixed to the centers of the limiting rings, rhombic cone blocks are fixed to the lower ends of the extrusion shafts, and two stirring rods are arranged on each rhombic cone block in a penetrating sliding mode; and the two stirring rods are parallel to the corresponding extrusion shafts. Raw materials can be uniformly distributed in the extrusion cavity.

The invention provides biomass fuel sourced from urban life manure residues and a preparation method and application thereof, and relates to the technical field of biomass fuel. The preparation method provided by the invention comprises the following steps: carrying out solid-liquid separation on municipal domestic manure residues and manure, and then turning and mixing the municipal domestic manure residues and manure with biomass particles to obtain a dried raw material with the water content of 8-12%; extruding and granulating the dried raw material to obtain the biomass fuel; wherein the biomass material of the biomass particles comprises one of saw dust and rice husk. According to the invention, the utilization efficiency of biomass energy can be effectively improved through resource utilization of urban living manure residues, and meanwhile, the water content and combustion performance can be effectively adjusted by mixing the manure with biomass particles.

The invention discloses a power generation system for fused salt energy storage by using biomass. According to the system, the purity of raw materials is remarkably improved through an intelligent sorting and impurity removing unit of the pretreatment and coupling module, the waste heat driving drying unit effectively recycles system waste heat to reduce energy consumption, the flexible forming unit generates biomass fuel with stable physical characteristics, and the nano-catalysis pretreatment unit optimizes the reaction activity of the fuel on the molecular level. The measures directly improve the integrity of biomass combustion and the heat energy conversion efficiency, so that the fuel of unit mass releases more effective heat in the fused salt combustor. Meanwhile, tar is decomposed from the source through catalytic pretreatment, generation of nitric oxide and sulfur oxide precursors is reduced, the treatment load of a follow-up flue gas purification system is greatly reduced, the whole system reduces dependence on external energy on the basis of ensuring stable power supply through collaborative optimization of fuel pretreatment, stored energy release and clean emission, and the energy-saving and environment-friendly effects are achieved. And a high-adaptability solution is provided for distributed energy supply.

The invention relates to the field of biomass fuel preparation, in particular to a crosslinking modified biomass solid fuel and a preparation method thereof. According to the preparation method of the cross-linked modified biomass solid fuel, through combination of physical and chemical pretreatment and cross-linked modification, the calorific value and combustion performance of the biomass fuel are remarkably improved, emission of harmful gas is reduced, and the good environment-friendly effect is achieved. The method is simple and easy to implement, is suitable for large-scale production, can be widely applied to the fields of energy, environmental protection, agriculture and the like, and has important market application prospects.

The utility model discloses a biomass fuel rapid cracking device based on microwave assistance, which comprises a cracking tank, a plurality of groups of magnetrons used for cracking biomass fuel are fixedly mounted at the top of the cracking tank, and a control assembly used for controlling the magnetrons is mounted at the top of the cracking tank. The bottom of the cracking pipe is connected with a baffle plate through a hinge, the baffle plate is used for sealing a discharge port of the cracking tank, and a fixing piece is arranged on the surface of the cracking tank and is used for fixing the baffle plate, the control assembly and the magnetron are arranged, and the control assembly controls the magnetron to generate microwaves to heat biomass fuel; microwaves can directly act on material molecules or atoms, a long-time preheating process is not needed, materials can be rapidly heated, the efficiency is very high, the cracking speed of biomass fuel is increased, the microwaves have very high penetrability and can directly reach the interior of the biomass fuel, and therefore it is guaranteed that the cracking speed of the biomass fuel on the upper side and the cracking speed of the biomass fuel on the lower side are kept consistent.

The invention discloses a preparation device of a grass-tree composite-based traditional Chinese medicine residue biomass fuel. The preparation device comprises a material hopper, a dehydrator, a first-stage dryer, a first hot-air blower, a second-stage dryer and a second hot-air blower, the lower end of the material hopper is communicated with a feed port of the dehydrator; a discharge port of the dehydrator is communicated with a feed port of the first-stage dryer through a first auger; the front end of the first-stage dryer is communicated with a first air heater through a pipeline, and the rear end of the first-stage dryer is communicated with a feed port of the second-stage dryer through a second auger; the lower part of the secondary dryer is communicated with a second air heater through a pipeline; and a discharge port of the second-stage dryer is communicated with a feed port of the storage tank through a third auger. Compared with the prior art, the method has the advantages that early-stage moisture removal is carried out on the grass-tree composite-based traditional Chinese medicine residues through the dehydrator, moisture in the grass-tree composite-based traditional Chinese medicine residues is effectively removed through drying of the two-stage dryer, the moisture of the grass-tree composite-based traditional Chinese medicine residues is stabilized within the suitable range for manufacturing biomass fuel, and the biomass fuel is stable in moisture content and high in heat value.

The invention provides a method for measuring the blending combustion amount of biomass fuel in a co-grinding mode and a blending combustion system, and the method comprises the following specific steps: obtaining an internal image when a coal feeder is empty, and extracting an empty bin pixel gray value of the internal image when the coal feeder is empty; obtaining an internal image of the coal feeder when the fuel enters the coal feeder, and extracting a feeding pixel gray value of the internal image when the fuel enters the coal feeder; and comparing the empty bin pixel gray value with the feeding pixel gray value to confirm the fuel type, obtaining the weight of the fuel, and transmitting the weight of the fuel to a fuel quality database of the corresponding type to obtain biomass fuel blending combustion amount data. Accurate measurement of the blending combustion amount of the biomass fuel is achieved through an image processing algorithm. The method is easy to operate, high in precision and suitable for an existing carbon emission checking method. The system can operate continuously and stably only by installing a detection device at an outlet of the coal feeder, and is not influenced by biomass types and blending combustion proportions.

The invention relates to the technical field of biomass fuel combustors, in particular to a side spraying combustor which comprises a combustor box body, a detachable heat insulation shell is arranged on the right side of the combustor box body, an air supply system is arranged on the left side of the combustor box body, and a feeding part used for discharging is arranged at the top end of the combustor box body. A feeding part for conveying materials is arranged in the combustor box body; the feeding part comprises a stock bin hopper fixed to the top end of the combustor box body, the bottom end of the stock bin hopper is connected with a transition section, and a material passing assembly used for vibration is arranged below the transition section. By means of the vibration design of the material passing assembly, the vibration plate, the supporting spring and the corrugated rubber sleeve at the feeding part, continuous vibration is generated under driving of the electric push rod A, adhesion and caking of biomass fuel are damaged, bridging or arching is prevented from being formed at the position of the stock bin hopper and the transition section, and it is guaranteed that the fuel continuously and stably enters a feeding system.

The application discloses a boiler blending biomass fuel coupling chemical chain combustion system and concretely relates to the fuel control technical field.The boiler blending biomass fuel coupling chemical chain combustion system comprises an operation monitoring module, a plurality of types of sensor networks are arranged at key positions, whole-process operation data are collected in real time, a time-space monitoring data set covering physical and chemical processes of the combustion system is constructed, and the reliability of data collection is ensured through signal filtering and abnormal value correction; through the construction of a multi-dimensional collaborative control architecture, six-dimensional influence coefficients are fused into a comprehensive distribution index, the distribution strategy of fuel between the main combustion zone and the chemical chain reactor is dynamically optimized, the traditional single control dimension is expanded to multi-dimensional collaborative regulation, and the adaptability of the system to complex fuel characteristics is improved.

The utility model relates to a biomass fuel granulator, which belongs to the field of granulators and comprises a treatment box, and screening mechanisms for filtering, sorting and transferring biomass raw materials are arranged on the inner walls of the front side and the rear side of the treatment box. According to the biomass fuel granulator, the screening mechanism is arranged, crushed raw materials fall onto the screening plate, the biomass raw materials are screened under the vibration action of the vibration motor, and the raw materials with qualified sizes pass through holes of the screening plate, fall into the conveying belt and are conveyed to the granulation assembly of the granulator to be prepared into biomass fuel particles; the raw materials which are too large in size and cannot pass through the screening plate enter the material returning assembly, the raw materials are driven to be put into the treatment box again to be further crushed, the crushed raw materials enter the screening mechanism again to be screened, and the biomass raw materials are converted into biomass fuel particles consistent in size through the steps of screening, crushing, re-screening, pelleting and the like. And the combustion efficiency and the use convenience of the fuel are improved.

The invention belongs to the technical field of energy, and particularly relates to a device for recycling waste heat of a power plant to dry biomass fuel and a using method. The device comprises an auxiliary steam header, a pressure matcher, a condenser hot well, a biomass fuel dryer and a flash tank. A gas outlet of the auxiliary steam header and a gas outlet of the condenser hot well are both communicated with a gas inlet of the pressure matcher; an air outlet of the pressure matcher is communicated with a thermal medium inlet of the biomass fuel dryer, a thermal medium outlet of the biomass fuel dryer is communicated with a water inlet of the flash tank, and an air outlet of the flash tank is communicated with an air inlet of the pressure matcher. According to the device, heat of gas generated by the auxiliary steam header and the condenser hot well is recycled to heat and dry wet biomass fuel, the comprehensive utilization rate of energy is increased, and the system operation cost is reduced; and waste heat energy generated by the power plant is utilized in a gradient mode, environmental pollution is reduced, and the environment-friendly energy development direction is met.

The circulating fluidized bed boiler comprises a hearth, a feeding device, a material returning device, a secondary tuyere, an air distribution plate, a cyclone separator, a tail flue and a superheater, the hearth is divided into three areas including a preheating mixing area, a hearth combustion area and a hearth heat exchange area from bottom to top, refractory castable is laid in the hearth to form a heat insulation hearth, a superheater is arranged in a hearth heat exchange area on the upper portion in the hearth, and an evaporation water cooling screen is additionally arranged below the superheater in the hearth. According to the circulating fluidized bed boiler suitable for the high-coking fuel, the defects that a traditional circulating fluidized bed boiler is insufficient in combustion, prone to coking, uneven in hearth temperature distribution and the like when biomass fuel and garbage fuel are combusted are overcome, the combustion temperature and stability can be improved, coking is avoided, fluidization is more uniform, and the combustion efficiency is improved.

The invention discloses a flow and pressure detection system of a biomass boiler. The flow and pressure detection system comprises a fuel information acquisition module, a combustion data monitoring module, a dynamic analysis module, a model construction module and a central control regulation module, the fuel information acquisition module is used for acquiring static biomass fuel information and dynamic biomass fuel information; the combustion data monitoring module is used for monitoring the combustion reaction of biomass fuel in the boiler; the dynamic analysis module is used for analyzing the biomass fuel information and generating biomass fuel frequency conversion data information; the model construction module is used for constructing a biomass boiler flow-pressure parameter linkage model; and the central control adjusting module is used for carrying out real-time detection and dynamic adjustment on flow parameters and pressure parameters of the biomass boiler. By detecting and monitoring the flow and pressure of the biomass boiler, the combustion performance and stability of the biomass boiler are improved, and the use cost is saved.

The utility model discloses a fixed-point biomass fuel feeding device for a curing barn, which comprises a feeding device, a material consumption monitoring device, a charging positioning device, a discharging device, a trolley feeding device and a controller, a feeding trolley and a driving device of the feeding trolley are arranged on the trolley track; the consumed material monitoring device is positioned on the burner stock bin; the feeding positioning device is located on the trolley track, and the feeding positioning device corresponds to the starting position of the feeding trolley and the position of the burner stock bin one to one; the discharging device automatically conducts discharging when the feeding trolley moves to a feeding point prompted by the material consumption monitoring device. The trolley feeding device is located on the starting side of the trolley track. According to the utility model, centralized automatic feeding of biomass pellet fuel can be realized, and the phenomenon of material shortage in the baking process is solved; and labor for tobacco leaf curing operation is reduced, and labor and cost reduction of tobacco leaf curing is facilitated.