341 results about "Biomass boiler" patented technology

The invention relates to the technical field of intelligent heat supply, in particular to a multi-source energy fusion agricultural greenhouse intelligent heat supply and regulation and control system, which comprises a multi-source energy acquisition module for acquiring energy output parameters of a solar heat collector, a geothermal well and a biomass boiler in real time and monitoring external meteorological data of a greenhouse; the energy dynamic matching module is used for generating an energy scheduling strategy through a dynamic priority algorithm and outputting a target energy type and supplied energy; the energy storage buffer module is used for storing or releasing the supplied energy and outputting the temperature and the residual capacity of an energy storage medium; the multi-parameter coupling regulation and control module is used for generating a regulation and control instruction through an environment parameter coupling model; the actuating mechanism driving module is used for converting the regulation and control instruction into control signals of a heater, a fan and a humidifier; the self-learning optimization module is used for dynamically correcting the dynamic priority algorithm and the environment parameter coupling model; according to the invention, through multi-parameter cooperative regulation and dynamic optimization, crops are ensured to be in the optimal environmental conditions in different growth stages.

The invention discloses a special SNCR efficient denitration system for a biomass boiler and a denitration method of the special SNCR efficient denitration system, and particularly relates to the technical field of special biomass-fired direct-fired industrial boilers, the special SNCR efficient denitration system comprises a biomass combustion furnace and a denitration mechanism, the biomass combustion furnace comprises a feeding channel, a combustion chamber and a denitration chamber, the combustion chamber is arranged on the side edge of the feeding channel, and the denitration chamber is arranged on the side edge of the combustion chamber. A denitration chamber is arranged on the side, away from the feeding channel, of the combustion chamber, a feeding support is arranged on the side, away from the combustion chamber, of the feeding channel, and a denitration mechanism is arranged on the side, away from the feeding support, of the biomass combustion furnace. A denitration system is provided with a CEMS device to provide NOx emission data, the feeding amount is accurately controlled by adjusting spiral feeding frequency conversion according to the NOx emission amount, the denitration efficiency is improved, and meanwhile waste of a denitration agent is prevented.

The invention discloses a biomass boiler fuel adaptability enhanced feeding system and a control method. The biomass boiler fuel adaptability enhanced feeding system comprises a feeding device, a fuel pretreatment module, a multi-parameter detection module, a control unit and an execution mechanism. The feeding device comprises a screw feeder and a vibrating feeder which are arranged in parallel, outlets of the screw feeder and the vibrating feeder are converged into the same blanking channel, a wear-resistant ceramic lining plate is laid on the inner wall of the channel, and a pneumatic arch breaker is mounted at the bottom of the channel. Through a multi-stage pretreatment and intelligent feedback control cooperation mechanism, the adaptability of the complex biomass fuel is remarkably improved. The two-stage pretreatment module effectively breaks caking, screens out overrun particles and adjusts the water content, and the blocking risk is eliminated from the source; multi-parameter real-time detection is combined with a self-adaptive control algorithm, the feeding rate and the air-coal ratio are dynamically optimized, the combustion stability is ensured, and the heat efficiency is remarkably improved; due to the abnormal working condition self-diagnosis function, the manual intervention frequency is reduced, and multi-fuel combustion of multiple components in any proportion is supported.

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 power plant dead steam and flue gas waste heat integrated recovery heat supply device which comprises the following components: a biomass boiler used for combusting biomass fuel and generating high-temperature steam, and a flue gas outlet of the biomass boiler is connected to a flue gas emission reduction and waste heat recovery integrated unit; a steam inlet of the steam turbine is connected with a high-temperature steam outlet of the biomass boiler, and a steam outlet of the steam turbine is connected to a high-temperature side inlet of the steam exhaust heat exchanger and a high-temperature side inlet of the condenser through valves; the steam exhaust heat exchanger is connected with the condenser. When the device is implemented, waste steam latent heat and flue gas sensible heat / latent heat are recovered in a stepped manner, so that the comprehensive heat efficiency is remarkably improved; seasonal mode switching is achieved through an arranged intelligent control system, namely flue gas waste heat is recycled preferentially in summer, and steam exhaust heat supply is combined in winter; fuel cost is counteracted through waste heat sales income, and the income during implementation of the device is increased.

The invention discloses a multi-fuel mixing proportion intelligent optimization control method for a variable-working-condition biomass boiler, and relates to the technical field of fuel control. Comprising the following steps: collecting industrial analysis data of various coal types, and recording combustion test data of each coal type; training a neural network model; acquiring a preset load and an initialized fuel proportion as original mixed coal, inputting the original mixed coal into the trained model, and acquiring combustion test data of the original mixed coal; calculating a predicted load and a preset deviation; calculating a proportion correction coefficient, and correcting the proportion of each component of the original mixed coal through a correction method. According to the method, the neural network model is trained through multiple fuel components, hidden influences among different components can be reserved, correction is repeated, the fuel proportion is changed as small as possible according to the previous correction result in each correction, historical data are further fitted, the component proportioning habit is continued, the method adapts to the stock of all the components of the fuel, and the fuel efficiency is improved. And emergencies are prevented.

The utility model relates to a solar energy and biomass energy coupled combined heat and power generation system which comprises an air preheater, a biomass boiler, a PV / T, a solar vacuum tube collector, a first-stage organic Rankine cycle assembly, a second-stage organic Rankine cycle assembly and a jet type refrigeration cycle assembly. A fluid outlet of the PV / T is connected with a fluid inlet of the solar vacuum tube collector, a smoke outlet of the biomass boiler is connected with a hot fluid inlet of the air preheater, and a cold fluid outlet of the air preheater is connected with an air inlet of the biomass boiler. According to the utility model, by designing a two-stage organic Rankine cycle structure, solar energy and biomass energy are better coupled, and the stability of the system is improved.

The invention discloses a biomass boiler flue gas recycling system and method, and belongs to the technical field of biomass boilers. In order to solve the problems that in the prior art, a filter screen needs to be frequently shut down for cleaning, and flue gas waste heat is not fully utilized, the system adopts the following technical scheme that the system comprises a coarse filter cylinder, a water storage cylinder, a desulfurization tower and a bag-type dust collector which are connected in sequence. A rotatable rotating ring is arranged in the coarse filter cylinder, a plurality of metal filter screen dust removers are mounted on the rotating ring, and non-stop replacement and filtration are realized through driving of a rubber wheel; a reverse flushing structure is arranged in the cleaning box, and a cam is used for driving a floating plate to spray water to the filter screen to be cleaned. A hollow rotating disc driven by a rotating pipe and a heat exchange pipe are arranged in the water storage cylinder, the air gathering plate is driven by smoke flowing to drive the heat exchange pipe to rotate, and water-smoke heat exchange is enhanced. Seamless replacement of the filter screen, stepped recovery of waste heat and utilization of kinetic energy of flue gas in the flue gas treatment process are achieved, the system operation efficiency and the energy utilization rate are remarkably improved, and pollutant emission is reduced.

The utility model discloses a biomass gas combustion system capable of accurately controlling combustion. The system comprises a biomass gas burner, a biomass gas pipeline connected with the burner, an air blower, an air supply pipeline connected with the air blower and the burner, a tar collecting device in a hearth of the biomass boiler, an oxygen sensor arranged on a smoke exhaust pipeline of the boiler, a controller based on a PLC (Programmable Logic Controller) system, and an air blower frequency converter. Gas component, flow, temperature and pressure measuring devices are arranged on the biomass gas pipeline, and flow and temperature measuring devices are arranged on the air supply pipeline. The controller calculates the oxygen amount needed by biomass gas combustion and the oxygen amount provided by the air blower according to data fed back by the measuring device, and controls the air blower frequency converter to adjust the air amount of the air blower under correction of data fed back by the oxygen sensor on the boiler smoke exhaust pipeline, so that combustion is accurately controlled under the condition of partial load of the boiler, and the combustion efficiency is improved. The combustion efficiency is improved, and the pollutant emission is reduced.

The invention relates to the technical field of environmental protection, and discloses a biomass boiler oxygen-enriched combustion and biomass fly ash potassium extraction method which comprises the following steps: step 1, high-carbon-dioxide-concentration flue gas generated after biomass is subjected to oxygen-enriched combustion in a boiler is cooled, fly ash is separated, the flue gas enters a flue gas heat exchanger, and low-temperature flue gas and hot air are obtained after heat exchange with cold air; 2, fly ash obtained through separation and water are mixed and stirred, a water-ash mixture is obtained, CO2 is introduced into the water-ash mixture, and the ash mixture and low-temperature flue gas are subjected to a contact reaction; step 3, performing solid-liquid separation on the water-ash mixture after the reaction to obtain a potassium-rich solution A and a filter residue A, dividing the solution A into a solution B and a solution C, returning the solution B to the contact reaction tank for circulation, and enabling the solution C to enter a concentration device; 4, heating and concentrating the solution C through hot air to obtain a solution D; and 5, carrying out solid-liquid separation on the solution D to obtain potassium salt and mother liquor F. The method is simple in process, low in extraction cost and high in product purity.

The invention discloses a biomass boiler denitration urea solution automatic preparation system, which comprises a stirring cylinder and a control device, the stirring cylinder comprises an inner cylinder and an outer cylinder which are coaxially distributed, the inner cylinder defines a preliminary mixing cavity, and a fine mixing cavity is defined between the inner cylinder and the outer cylinder; a water supply device and a urea input device are arranged at the top of the stirring barrel; a liquid discharge device is arranged at the bottom of the stirring barrel; a plurality of flow guide holes communicated with the primary mixing cavity and the fine mixing cavity are formed in the side wall of the inner cylinder; a driving impeller is fixedly arranged on the upper portion of the rotating shaft, at least one stirring paddle is fixedly arranged on the lower portion of the rotating shaft, a water spraying pipe is arranged on the upper portion of the inner wall of the inner cylinder, and the water spraying pipe is provided with a plurality of spraying heads spraying water towards the driving impeller; a backflow device is connected between the backflow opening and the water spraying pipe. By adopting a multi-stage mixing mode and utilizing reflux water to push and stir, the preparation efficiency and quality of the urea solution are remarkably improved.

The application discloses a kind of ammonia-free denitration agent for biomass boiler and its preparation method, and preparation raw materials include, by mass percentage: oxidizing agent 13-18%, solubilizer 0.5-2%, dispersing agent 0.5-1%, absorbent 15-19%, activated carbon slurry 8-15%, and the balance is water.5, the incorporation of denitration agent can effectively reduce the monitored values of nitrogen oxides at the inlet and outlet of flue gas, whether mother liquor or diluted product has the effect of reducing nitrogen oxides, the use method is simple, low in cost, convenient to use, has greater economic value and broad application prospect.

The utility model discloses a boiler cleaning structure, which belongs to the technical field of boilers, and adopts the technical scheme that the boiler cleaning structure comprises a biomass boiler body, the inner side of the biomass boiler body is in bolted connection with a wall scraping structure, the inner side of the biomass boiler body is in inserted connection with a collecting structure, and the bottom of an electric push rod is in bolted connection with the top of the biomass boiler body. The output end of the electric push rod is slidably connected with the inner wall of the biomass boiler body, the bottom of the electric push rod is in bolted connection with the top of the fixing frame, the outer side of the fixing frame is fixedly connected with the inner side of the connecting block, and in the biomass fuel combustion process of an existing biomass boiler, a large amount of impurities such as ash and coke residues can be generated. The impurities are attached to the heating surface of the boiler, so that the heat exchange efficiency of the boiler is reduced, the energy consumption is increased, and the normal operation of the boiler is influenced.

The present application belongs to the technical field of biomass boiler, in particular to a circulating fluidized bed boiler tail flue fly ash conveying system, which comprises a bin pump and a fly ash conveying pipeline, the bin pump is arranged at the bottom of the discharge pipe of the tail flue ash bucket; a flow zone is arranged at the middle part of the discharge pipe, a flow bin is arranged inside the flow zone, and the flow bin is communicated with the bin pump through a mixing pipe arranged at the middle part; the accumulated ash and the airflow are mixed in advance to form a gas-solid mixture which is sent into the bin pump and flows to the ash storage, so that the flowability of the ash is improved, the short-time concentrated release of the ash is converted into the continuous release of the gas-solid mixture, and the load on the bin pump is reduced; and the process of forming the gas-solid mixture from the accumulated ash expands the gap between the cinder, so that the cinder is diffused, the excessive concentration of the cinder through the bin pump is avoided, the blockage of the upper opening or the valve of the bin pump is avoided, the failure rate of the bin pump is reduced, and the smooth transfer of the accumulated ash of the boiler tail flue is ensured.

The utility model is applicable to the technical field of biomass boilers, and discloses a biomass boiler air distribution device which is characterized in that a rotating pipe is vertically and rotatably mounted in the middle of the top of a boiler body through a sealing bearing, support frames are vertically and fixedly mounted on two sides of the top of the boiler body, and a fixed sleeve is fixedly mounted on the surface of the top of each support frame; a conveying pipe is fixedly installed between the inner sides of the two fixing sleeves in a transverse penetrating mode, the top end of the side edge of the conveying pipe fixedly communicates with an air feeding pipe, a driving mechanism is arranged in the conveying pipe, and a transmission mechanism is arranged in the rotating pipe. According to the technical scheme, air can be normally conveyed into the rotating pipe and the exhaust pipe through the connecting straight pipe and the rotating joint, and external air is uniformly conveyed to different positions in the furnace body by combining with the synchronous rotating exhaust groove; and air is conveyed to different positions in the furnace body, so that the contact degree of comburent in the furnace body and oxygen is increased, and the combustion rate of the comburent in the furnace body is increased.

The utility model relates to the technical field of biomass boilers, in particular to a material locking and backfire preventing device of a biomass boiler, which not only can quantitatively convey biomass into the boiler according to the combustion efficiency of the boiler and improve the use flexibility of the device, but also can avoid backfire through double blocking of locking air and a fire damper. Comprising a biomass boiler which is installed on the ground. The biomass boiler further comprises a quantitative conveying mechanism, an anti-backfire mechanism, a direct conveying mechanism, a driving mechanism and an air supply mechanism, the quantitative conveying mechanism is installed on the biomass boiler and conveys biomass into the anti-backfire mechanism in a quantitative mode, and the anti-backfire mechanism is installed on the quantitative conveying mechanism and avoids backfire; the direct conveying mechanism is installed on the anti-backfire mechanism and conveys biomass into the biomass boiler, the driving mechanism is installed on the direct conveying mechanism and drives the direct conveying mechanism to convey the biomass, and the air supply mechanism is installed on the driving mechanism and accelerates conveying of the biomass to avoid backfire.

A desulfurization, dust removal and denitration device for a biomass boiler relates to the technical field of flue gas treatment devices and comprises a treatment barrel shell, a plurality of alkali liquor distribution ring shells are fixedly connected to the outer wall of the treatment barrel shell in parallel from top to bottom, and a plurality of alkali liquor outlets communicated with the alkali liquor distribution ring shells are formed in the barrel wall of the treatment barrel shell in the circumferential direction in a surrounding mode and correspond to the alkali liquor distribution ring shells. An atomizing head is fixedly connected in each alkali liquor outlet, a filter screen is fixedly connected to the position, close to the upper end, of the treatment barrel shell, and a cleaning plate set in friction contact with the inner wall of the treatment barrel shell and the lower surface of the filter screen is rotationally arranged in the treatment barrel shell. The utility model solves the problems that dust and particulate matters are contained in flue gas in the prior art, most of the dust in the flue gas is separated after alkali liquor is in contact with the flue gas, and the separated dust and particulate matters are easy to gather in the device, so that the dust removal efficiency of the device on the flue gas is influenced.

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 present invention relates to a method and structure for preventing the coking of biomass fuel from affecting combustion, and belongs to the technical field of biomass combustion residue removal. The technical solution is as follows: a plurality of air inlet holes (14) with variable functions are arranged in layers on the side wall of a combustion tube (3); when the combustion tube (3) is inserted into an inner container (2), it becomes a furnace; after a combustion cycle, the combustion tube (3) is pulled out to remove the coke in one go. A combustion layer (16) and a coking layer (17) are provided in the combustion tube (3); the combustion layer (16) is always on top. As the combustion progresses, the coking layer (17) gradually thickens, and the air inlet holes corresponding to the combustion layer also rise dynamically. The coking layer can neither occupy the space of the combustion layer nor block the air inlet holes corresponding to the combustion layer to affect combustion. The positive effect of the present invention is that after the present invention is applied, various biomass boilers, stoves, and burners no longer require a decoking device, can burn stably for a long time under various fire powers, can use high-ash content and cheap fuel, and reduce manufacturing and operating costs.

The utility model relates to the technical field of biomass boilers, and discloses a biomass boiler capable of realizing heating, cooking and kang heating, which comprises a combustion table and a ventilation table, a chimney is fixedly mounted on the ventilation table, and a combustion mechanism is arranged on the combustion table; the upper sealing plate and the lower sealing plate are controlled to add biomass raw materials and treat ash, during combustion, the heat insulation plates are selectively installed on the two sides of the combustion table, heat dissipation can be rapidly controlled, meanwhile, the ash groove is installed between the combustion table and the air exchange table, and the ash groove can guide heat transmission and can also guide heat exchange. By installing a wet vessel and a dry vessel, after a valve is controlled to inject water into the wet vessel, water vapor is generated through heating and enters a room through a temperature control pipe, after the dry vessel is heated, heat enters the room through the temperature control pipe, the indoor temperature and humidity can be flexibly changed, and practicability is high.

The biomass briquette and small square bale mixed reverse fire and reverse layer-by-layer combustion device belongs to the field of boiler combustion systems. The present invention includes a hot water suction pipe, a makeup water heating pipe, a left furnace body, a middle furnace body, and a right furnace body. The left furnace body, the middle furnace body, and the right furnace body are connected and installed from left to right. The hot water suction pipe is installed in a circulating manner inside the left furnace body, the middle furnace body, and the right furnace body. The hot water suction pipe is connected to the makeup water heating pipe. A biomass briquette feed inlet and a biomass small square bale feed inlet are respectively arranged on the outer sides of the left furnace body and the right furnace body. The inside of the middle furnace body is the main combustion chamber. The research and development purpose of the present invention is to solve the problems that the biomass energy fuel of traditional biomass boilers is single, the use method is not flexible enough, and it is impossible to make reasonable planning and adjustment according to the actual situation. A makeup water heating pipe is installed inside the middle furnace body, and the makeup water heating pipe is connected and installed with the external boiler heating return water. The structure of the present invention is simple and ingenious, and it is suitable for popularization and use.

The invention belongs to the technical field of biomass boilers, and particularly relates to a water circulation design method for a pipeline support boiler, which comprises the following steps of: firstly, constructing a 3D geometric model of the biomass boiler, simplifying to obtain a simplified model, then defining material attributes and fluid attributes of the simplified model, performing stress simulation analysis by utilizing simulation software, and finally, calculating the water circulation of the pipeline support boiler. Obtaining a constraint lower limit of each pipeline size parameter in the simplified model meeting the structural mechanical property requirement, then forming an adjustment scheme by upwards adjusting each pipeline size parameter based on the constraint lower limit, and substituting the obtained adjustment scheme into the simplified model to obtain the structural mechanical property requirement. And after setting boundary conditions, carrying out finite element analysis by utilizing finite element analysis software to obtain a medium flow analysis result, and finally screening out an adjustment scheme with the most appropriate circulation ratio based on the medium flow analysis result. According to the biomass boiler, the circulation ratio of the biomass boiler can be effectively increased on the premise that the stress stability is guaranteed.

The utility model relates to the technical field of biomass boiler slag coolers, and discloses a blockage clearing device of a biomass boiler slag cooler, which comprises a slag cooler charging barrel end plate, a blockage clearing mechanism is arranged in an inner cavity of the slag cooler charging barrel end plate, the blockage clearing mechanism comprises a flange seat and a flange cover, one side of the flange seat is fixedly provided with a fixing seat, and the other side of the flange seat is fixedly provided with a baffle. A threaded hole is formed in an inner cavity of the flange base, and a positioning ring is fixedly installed on one side of the flange cover. The blockage clearing mechanism is arranged on the original end plate of the material barrel of the slag cooler, the fixed seat is welded in the inner cavity of the end plate of the material barrel of the slag cooler, the flange cover and the flange seat are connected through the connecting bolt, refractory castable has good heat resistance, foreign matters in the slag cooler are manually taken out after the flange cover is detached, and the blockage clearing mechanism is convenient to use. Foreign matters such as iron wires in the slag are prevented from blocking the slag spraying holes, and the feeding system device of the slag cooler does not need to be disassembled, so that a large amount of manpower and time are saved.

The utility model discloses a system for preparing renewable natural gas by utilizing biomass, which comprises a biomass degradation system, a biomass combustion system, a biomass gasification system and a wind and light energy storage electrolysis system, the biomass degradation system comprises an anaerobic fermentation device, a purification device and a biogas storage tank I which are communicated in sequence, the biomass combustion system comprises a biomass boiler, a carbon dioxide trapping device, a methanation device I and a synthetic natural gas storage tank which are sequentially communicated, and the biomass gasification system comprises a gasification furnace, a methanation device II and a biogas storage tank II which are sequentially communicated. The wind and light energy storage electrolysis system comprises a wind power and photovoltaic power generation system and an electrolytic cell which are sequentially communicated. The biomass recycling system has the advantages that recycling treatment of different types of biomass is realized, and meanwhile, efficient development and utilization of biomass energy are also realized.

The invention relates to the technical field of energy utilization, and discloses a biomass boiler which comprises a biomass boiler body, a manipulator is installed on one side of the biomass boiler body, a discharging door is installed on one side of the biomass boiler body, a feeding pipeline is fixedly connected to the top of the biomass boiler body, and a discharging pipeline is fixedly connected to the top of the biomass boiler body. The biomass boiler comprises a biomass boiler body, mounting frames are mounted on the two sides of the biomass boiler body correspondingly, mixing parts are mounted in the two mounting frames correspondingly, each mixing part comprises a sleeve, and a fluted disc is fixedly connected to the surface of each sleeve. According to the biomass boiler, fuel in the biomass boiler body is stirred through the digging hopper, the materials are driven to be evenly poured into the biomass boiler body, meanwhile, ash and solid fuel in the fuel are screened, and therefore the materials are prevented from being stacked and agglomerated, and the contact area between the fuel and air is increased; and ash is prevented from being accumulated at one position to influence the combustion quality of fuel, so that the combustion heating efficiency during operation of the biomass boiler body is improved.

This application provides a denitrification control method and system for biomass boilers based on cryogenic catalytic reduction, relating to the field of combustion product treatment technology. The method includes: arranging a denitrification reactor in the tail flue of the biomass boiler and monitoring the associated data of the outlet flue gas in real time; performing multi-level control analysis on the boiler denitrification control space and establishing a multi-level denitrification control channel; monitoring the reaction temperature and dynamically identifying zones in the denitrification reactor to determine the cryogenic catalyst reaction zone set; using the multi-level denitrification control channel to perform dynamic strategy analysis on the associated data of the outlet flue gas and the cryogenic catalyst reaction zone set; monitoring the denitrification execution of the denitrification reactor based on the target boiler denitrification control parameters, and performing dynamic compensation control through flue gas denitrification feedback data. This application can solve the technical problem of unstable denitrification control efficiency in existing biomass boiler technologies, achieving the technical effect of improving the stability of denitrification control efficiency.

The utility model discloses a straw sugar making system coupled with a biomass power plant. The straw sugar making system comprises a straw sugar making subsystem and a straw sugar making subsystem, wherein the straw sugar making subsystem comprises a bundling device, and a bundle breaking device, a first-stage iron removal device, a primary sorting device, a second-stage iron removal device, a secondary sorting device, a third-stage iron removal device, a crushing device, a third sorting device, a drying device, a crushing device, a powder tank device, a catalytic saccharification device, a solid-liquid separation device and a sugar liquid concentration device which are sequentially connected; the biomass power plant subsystem comprises a stock ground, a biomass boiler, a steam turbine and a generator which are connected in sequence; a discharging port of the bundling device is connected with a feeding port of the stock yard, and a discharging port of the stock yard is connected with a feeding port of the bundle breaking device. A heat source inlet of the drying device is connected with a biomass boiler heat outlet; a steam inlet of the catalytic saccharification and liquid glucose concentration device is connected with a steam outlet of the turbine; a generator electricity outlet is connected with an electricity inlet of the straw sugar manufacturing subsystem. The system can make full use of mature fuel collection and storage systems, infrastructures, green heat, green electricity and the like of the biomass power plant, the investment and operation cost of the straw sugar making system is reduced, and the survivability of the power plant is improved.

The utility model discloses a biomass boiler fan inlet baffle structure which comprises a fan body, an air inlet cylinder, a protective net, a fan plate and an adjusting fan plate, supporting legs are welded to the two sides of the bottom end of the fan body, a motor is fixed to the interior of the fan body through a support, fan blades are welded to the motor, and the fan blades are fixed to the fan body through a support. The front end of the fan body is welded and fixed to the air inlet barrel through a connecting strip, and a fan plate is fixed to the front end in the air inlet barrel. The adjusting fan plate is arranged on the rear side of the fan plate in the air inlet barrel, the area of the adjusting fan plate is larger than that of the air inlet, the rubber strip is arranged on the front end face of the adjusting fan plate, when the hydraulic cylinder controls the adjusting fan plate to be connected with the fan plate, the sealing effect can be achieved through the rubber strip, and when the air inlet size is adjusted, only the hydraulic cylinder needs to be controlled, and the operation is convenient. And the operation is simple, the air inlet amount can be adjusted through the backward movement of the adjusting fan plate, the air inlet track is uniform, and the adjusting fan plate is convenient to replace and overhaul.

The utility model discloses a kind of biomass boiler air preheater anticorrosion device, including air preheater, still including the guide air duct being connected with air preheater, guide air duct includes first air duct and second air duct, second air duct is connected in the inlet end of first air duct, the air preheater includes shell and the flue pipe assembly being set in the shell, flue pipe assembly includes tube bundle and the tube sheet being fixed in the both sides of tube bundle, the air preheater is vertically placed, the inner wall of the air preheater is provided with base layer, intermediate insulating layer is fixed outside the base layer, intermediate insulating layer outside fixedly set has metal reinforcing layer, the metal reinforcing layer closely adheres to intermediate insulating layer, the metal reinforcing layer and the shell of the air preheater form integral structure, first air duct is indoor air duct, second air duct is hot air return pipe, hot air return pipe is connected with the hot air outlet of the air preheater.

This utility model discloses a biomass boiler ash removal device with anti-clogging function, comprising: a conveying pipe, one end of which is connected to the boiler, a first pipe extending upwards from the other end of the conveying pipe, and a second pipe extending downwards from the other end of the conveying pipe; and an ash removal structure disposed inside the conveying pipe, which scrapes away the accumulated soot inside the conveying pipe. This utility model can effectively and promptly remove soot, prevent clogging, ensure normal boiler operation, improve boiler efficiency, and reduce the frequency of downtime maintenance.