33 results about "Biomass boiler" patented technology

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.

This invention relates to the field of denitrification catalyst technology, and in particular to an arsenic- and alkali-poisoning-resistant denitrification catalyst and its preparation method. The denitrification catalyst comprises: a support, an active component, and a co-catalyst; the mass ratio of the active component to the support is (3-15):100; the mass ratio of the co-catalyst to the support is (3-8):100; the support comprises: calcium-based bentonite, attapulgite, and nano-cerium oxide; the active component is an oxide of vanadium, chromium, samarium, or niobium; and the co-catalyst is one or more oxides of molybdenum, tungsten, or praseodymium. This invention prepares a multi-component mesoporous composite oxide denitrification catalyst with excellent resistance to arsenic and alkali metal poisoning through multiple steps, solving the problem of poor arsenic and alkali resistance in traditional denitrification catalysts. It is suitable for nitrogen oxide emission control under flue gas conditions in coal-fired power plants, biomass boilers, and the glass industry.

The utility model is suitable for wastewater treatment technical field provides a kind of biomass boiler wastewater treatment equipment, it includes: collection pond and fixed axle, fixed axle is fixedly arranged at the top of collection pond, slidingly equipped with moving seat on collection pond, rotatingly equipped with threaded shaft on moving seat, lifting seat is equipped above moving seat, rotatingly equipped with several rotating shaft sleeves on lifting seat, the bottom of rotating shaft sleeve is equipped with several stirring parts, several support shafts are fixedly arranged on moving seat;Matching sleeve, it is rotatably connected in moving seat, gear is all equipped on matching sleeve, sliding magnet is slidingly equipped on lifting seat, double-sided rack is equipped on sliding magnet, fixed magnet is all equipped on the lifting seat of the both sides of sliding magnet, guide rod is equipped on sliding magnet, the both sides of sliding magnet are equipped with the stirring part. By this, the utility model can realize the zero discharge treatment of wastewater, reduce investment cost, and the wastewater in collection pond can be fully stirred, to avoid its precipitation and condensation, ensure good wastewater treatment effect.

This invention relates to the field of heat energy recovery technology, specifically disclosing a biomass boiler slag heat recovery device, including a receiving unit, a conveying structure, and a heat exchange structure. The conveying structure is fixedly installed on the receiving unit, and the heat exchange structure is fixedly installed on the conveying structure and located above the receiving unit. This invention achieves full and efficient waste heat recovery, realizing multi-level utilization of heat energy. The heat exchange structure has a simple design, is easy to process and assemble, and operates stably, achieving environmentally friendly operation. It takes into account both waste heat recovery and dust control, centrally collects slag residue, maintains a clean working environment, and facilitates subsequent processing. The heat energy utilization method is practical and adaptable to actual industrial heat demand. The structure has strong synergy, and the overall equipment is compact with high space utilization.

This utility model belongs to the technical field of energy utilization, and specifically proposes a steam supply system for comprehensive energy utilization, including: an air source heat pump, a biomass boiler (8), a flash evaporation device (9), and a steam compressor. In this application, by coupling the air source heat pump with biomass, the ambient temperature feedwater can be heated by the air source heat pump and supplied to the biomass boiler (8). The biomass boiler (8) uses the heated water to prepare steam, which reduces energy consumption compared to directly heating the ambient temperature feedwater to prepare steam. When the biomass boiler (8) is not in use or lacks biomass fuel, the high temperature water prepared by the air source heat pump can be supplied to the flash evaporation device (9). The low temperature and low pressure steam prepared by the flash evaporation device (9) is pressurized and heated by the steam compressor and then transported to the external steam supply pipeline (23) to provide steam to users, which makes reasonable use of biomass fuel and meets the steam supply requirements.

This invention provides a circulating fluidized bed boiler bottom material addition system and its working method, comprising: multiple circulating fluidized bed boilers, a movable screw conveyor, and a hot slag direct delivery channel; a slag cooler and a chain bucket slag conveyor are arranged below the circulating fluidized bed boilers; a turning chamber is provided at the material discharge position of the chain bucket slag conveyor; the movable screw conveyor is telescopically arranged outside the turning chamber via guide rails and pneumatic push rods; the hot slag direct delivery channel includes a first screw conveyor, a bucket elevator, a second screw conveyor, a buffer tank, and a chute connected in sequence, the chute connecting the buffer tank and the biomass boiler; the discharge port of the movable screw conveyor is connected to the inlet of the first screw conveyor. This invention solves the problems of existing technologies that cannot fully utilize the waste heat of hot slag, flexibly schedule hot slag, and accurately control the addition of biomass boiler bottom material.

The utility model relates to flue gas denitration technical field especially relates to a kind of stable and efficient biomass boiler's denitration system of efficiency. Including: energy conversion unit, with biomass boiler connection;Heat recovery unit, with biomass boiler connection;Dust desulfurization unit, with heat recovery unit connection;Chimney, with dust desulfurization unit connection;SNCR processing unit, set between heat recovery unit and biomass boiler;Low-temperature denitration unit, set between chimney and dust desulfurization unit, and with energy conversion unit and heat recovery unit are connected;Detection control unit, for detecting the temperature of flue gas generated by biomass boiler and the concentration of NO X Of flue gas in dust desulfurization unit, and according to the temperature and the concentration of NO X Control SNCR processing unit operation and / or low-temperature denitration unit operation.The system greatly reduces the possibility of catalyst poisoning, not only solves the problem of frequent poisoning of catalyst in conventional SCR denitration, but also the way denitration efficiency is high, and the system is stable.

The application discloses a kind of Stirling and semiconductor temperature difference compound micro combined heat and power device suitable for biomass boiler waste heat, it is related to waste heat recovery and micro combined heat and power technical field, solve the problem of poor adaptability, high cost, low energy utilization efficiency of existing device.The device includes waste heat collection module, Stirling power generation module, semiconductor temperature difference power generation module, waste heat recovery module, electric energy processing module and control module;Waste heat collection module is connected with biomass boiler waste heat outlet, Stirling power generation module uses piezoelectric structure without moving parts, semiconductor temperature difference power generation module uses single-stage temperature difference sheet, realize waste heat cascade recovery power generation, waste heat recovery module uses remaining waste heat for heating / heat water, control module adjusts system operating state according to waste heat parameter.The application has strong adaptability, long service life, low cost, waste heat utilization rate is improved to more than 85%, small and exquisite, easy to install, suitable for household and small commercial places of biomass boiler waste heat recovery and cogeneration.

The present application relates to the technical fields of biomass boiler and new gasification furnace, and discloses a countercurrent two-stage internal and external gas distribution self-heating type biomass fixed bed gasification furnace, which comprises a furnace body, and a drying zone, a pyrolysis zone, an upper combustion zone, a gasification zone and a lower combustion zone are sequentially arranged in the furnace body from top to bottom. The present application realizes the graded countercurrent reaction of biomass raw materials through the drying zone, the pyrolysis zone, the upper combustion zone, the gasification zone and the lower combustion zone in the furnace body from top to bottom, the upper and lower two-stage gas distribution structure is adopted for the air inlet system, the upper air inlet mechanism utilizes the internal and external staggered arrangement of the annular pipe first air inlet and the air outlet pipe second air inlet to uniformly distribute the air in the upper combustion zone, so that the local oxygen deficiency, overheating and coking are avoided, the initial cracking of tar, the oxidation and heat release of semi-coke form a self-heating heat source, external heating is not needed, the overall structure improves the gasification efficiency and heat utilization rate, reduces the energy consumption and operation cost, the reaction is stable, and the present application has good practicability and economy.

This invention discloses an intelligent control method and system for BFB biomass boilers based on DCS, relating to the interdisciplinary fields of industrial process automatic control and artificial intelligence. It includes: a multi-source heterogeneous data synchronous acquisition module for acquiring data; an intelligent fusion and construction module for operating condition features that dynamically aligns, adaptively normalizes, and constructs combustion state features based on process delay mechanisms to form a unified operating condition feature vector; a digital twin-driven multi-objective collaborative optimization decision-making module that uses a dynamic digital twin model constructed from a physical information neural network as a predictor and employs a multi-agent optimization framework based on a two-layer interactive collaborative evolution algorithm to solve in real time a collaborative control instruction set that simultaneously optimizes combustion efficiency, initial pollutant concentration, and operational economy; and an instruction secure execution and adaptive fault-tolerant control module that securely issues and executes the instructions.

The present application belongs to the field of boiler control, and particularly relates to an automatic baling biomass boiler fuel gasification coupling control method. The method comprises: extracting raw material activity index and dynamically adjusting baling machine parameters to produce customized fuel; collecting multi-modal data of a gasification furnace and a boiler in real time and constructing a data vector; using a gasification combustion digital twin to calculate the nonlinear coupling relationship between fuel properties and the data vector to generate an optimal operating parameter combination; and using a model predictive control algorithm to issue coordinated control instructions to the fuel forming, gasification, distribution and heat exchange whole chain. The present application realizes source compensation for raw material fluctuations and accurate mapping of dynamic characteristics through whole-process closed-loop control, improves the system comprehensive energy efficiency and load tracking rate, optimizes the safety and environmental performance, and improves the intelligent level of the biomass boiler system.

The present application relates to the technical fields of biomass energy utilization and surface engineering protection, and discloses a kind of high-temperature corrosion resistant protective coating on the surface of biomass boiler pipeline and preparation method, the present application is aimed at the high-temperature pipeline of biomass boiler under the severe condition of high alkali metal and high chlorine, prone to high-temperature molten salt corrosion, existing protective coating is easy to peel off, insufficient corrosion resistance, short service life of core problem, design NiCoFeCrSiAlW high-entropy alloy protective coating, by accurately controlling the atomic percentage of each element, alloy powder is prepared by two-step mixing method, and a metallurgical bonded high-entropy alloy coating is formed on the surface of the pipeline substrate by wide-band laser cladding technology;The coating is a BCC single-phase solid solution structure, has excellent high-temperature oxidation resistance, molten salt and chlorine ion corrosion resistance, high bonding strength, excellent thermal shock resistance, can greatly reduce the corrosion rate of the pipeline, significantly improve the service reliability and service life of the biomass boiler pipeline.

The utility model discloses a kind of biomass boiler fly ash processing apparatus, it is related to dust cleaning and purification processing technical field;And the utility model includes biomass boiler body, the outer surface of biomass boiler body is fixed with fixed ring, the bottom surface of fixed ring is fixed with supporting leg, the bottom surface of biomass boiler body is fixed with hopper, the bottom surface of fixed ring is fixed with fixed plate, L-shaped plate is slidably arranged in the fixed plate, spring is fixedly connected between the inner wall of fixed plate and L-shaped plate, the bottom surface of L-shaped plate is fixed with connecting plate, circular ring is fixed between the connecting plate, the top surface of circular ring is fixed with rubber pole, the rubber pole can be attached in the top surface of hopper, limit slot is formed in the fixed plate, by circular ring reciprocating ascending and descending, and then make rubber pole knock hopper, and then avoid long time use fly ash adheres in hopper, ensure that ash conveying is smooth and improve fly ash processing efficiency.

This utility model discloses a heating temperature control device for a biomass boiler deaerator, including a deaerator body. Two connectors are located on the right side of the deaerator body, and a three-way pipe is located on the right side of each connector. An adjusting component is located on the right side of the three-way pipe. A temperature sensor is installed at the upper end of the deaerator body, with its sensing end extending into the deaerator body. The adjusting component includes a rectangular box with an opening. Horizontal pipes are located on both sides of the opening. An adjusting block is slidably connected and sealed inside the rectangular box. An electromagnetic plate is located inside the rectangular box, and the adjacent sides of the electromagnetic plate and the adjusting block are elastically connected by springs. By incorporating a temperature sensor, adjusting component, and interlocking control with a controller, precise temperature control, effective prevention of feedwater pump cavitation, energy saving, and good sealing performance can be achieved.

The utility model belongs to the technical field of carbon emission reduction, specifically puts forward a kind of system of comprehensive energy steam supply heating, including solar collector (1) utilize solar energy heating feedwater preparation medium temperature water;High temperature heat pump utilizes medium temperature water preparation high temperature water;Biomass boiler (6) will high temperature water preparation into steam;The medium temperature water of solar collector (1)'s first water outlet (12) is divided into at least two branches, one way enters the evaporator (2) of high temperature heat pump and returns solar collector (1)'s first water inlet (11) after heat release, another way enters the condenser (3) of high temperature heat pump and enters biomass boiler (6) after heat absorption.Solar collector (1) coupling high temperature heat pump, provide high temperature water for biomass boiler (6), reduce the consumption of biomass;High temperature heat pump improves the utilization efficiency of energy, solar collector (1), biomass boiler (6) reduces carbon emission, in the area where solar energy and biomass are abundant, the demand of steam can be well solved.

This invention belongs to the field of green methanol preparation technology, and specifically relates to a method and system for preparing green methanol by CO2 hydrogenation. The method includes the following steps: 1) crushing and granulating biomass raw materials to generate flue gas and steam in a biomass boiler, and obtaining CO2 by carbon capture of the flue gas; 2) producing H2 by water electrolysis; 3) using the CO2 obtained in step 1) and the H2 obtained in step 2) as fresh gas to carry out a methanol synthesis reaction under the action of a catalyst to obtain methanol synthesis reaction gas, which is then subjected to heat exchange, water cooling, and separation to obtain first crude methanol and recycle gas; the first crude methanol is flash-distilled to obtain second crude methanol and flash vapor; wherein at least a portion of the recycle gas is recycled for the methanol synthesis reaction; 4) distilling the second crude methanol obtained in step 3) to obtain refined methanol. This invention achieves high-value and clean utilization of agricultural and forestry waste biomass raw materials while producing green methanol that meets the carbon neutrality target.

The present application relates to the technical field of boiler monitoring and regulation, and particularly relates to an equal-smoke-velocity low-abrasion online monitoring and regulation method for a biomass boiler. The method comprises: obtaining a smoke velocity spatial dispersion diffusion index and a particle flow bias index; based on the smoke velocity spatial dispersion diffusion index and the particle flow bias index, screening an optimal induced draft fan control sequence from all to-be-analyzed control sequences; and based on the optimal induced draft fan control sequence, controlling the induced draft fan of the biomass boiler at a current monitoring time. The present application can make the boiler operation tend to a state of most uniform smoke flow field and most dispersed particle scouring by directly embedding the smoke velocity spatial dispersion diffusion index and the particle flow bias index into the regulation mechanism of the model prediction control framework, so as to inhibit the occurrence and development of local abrasion, and further improve the stability and reliability of long-term operation of the biomass boiler.

The present application belongs to the field of boiler control, and particularly relates to an automatic baling biomass boiler fuel gasification coupling control method. The method comprises: extracting raw material activity index and dynamically adjusting baling machine parameters to produce customized fuel; collecting multi-modal data of a gasification furnace and a boiler in real time and constructing a data vector; using a gasification combustion digital twin to calculate the nonlinear coupling relationship between fuel properties and the data vector to generate an optimal operating parameter combination; and using a model predictive control algorithm to issue coordinated control instructions to the fuel forming, gasification, distribution and heat exchange whole chain. The present application realizes source compensation for raw material fluctuations and accurate mapping of dynamic characteristics through whole-process closed-loop control, improves the system comprehensive energy efficiency and load tracking rate, optimizes the safety and environmental performance, and improves the intelligent level of the biomass boiler system.

This invention relates to the field of biomass boiler technology, specifically to a boiler furnace temperature co-regulation system based on biomass co-firing. The system includes a tube panel, a coolant delivery pipe, and a zone temperature detection unit. The tube panel comprises several pipe rows and flat steel bars surrounding the furnace. The coolant delivery pipe is equipped with a first branch pipe, a second branch pipe, and a first electrically controlled valve. The delivery end of the tube panel is connected to the first branch pipe of the coolant delivery pipe, and the second branch pipe is connected to a straight pipe. The straight pipe is equipped with several connecting pipes, a coolant direct conveyor, and a second electrically controlled valve. The zone temperature detection unit includes several temperature sensors. This technical solution achieves flexible switching of the coolant delivery path and targeted cooling of localized high-temperature areas in the furnace through precise signal linkage between the temperature sensors of the zone temperature detection unit and the coolant direct conveyors on both sides of the pipe rows.

The utility model relates to related technical field of biomass boiler especially, is a kind of vertical four corners cutting circle air distribution device for biomass boiler, including biomass boiler main body, the outside surface of biomass boiler main body is provided with dust prevention mechanism, the inside surface of biomass boiler main body is provided with flow guide subassembly. This vertical four corners cutting circle air distribution device for biomass boiler, when using, start fan, air flow is guided by impeller, the rotation of impeller generates powerful centrifugal force, inhales and accelerates air, simultaneously drives the rotation of cleaning brush on connecting column, cleaning brush is contacted with dust screen, dust on dust screen is brushed off, avoid the influence of dust accumulation on ventilation effect, the cooperation of fixed groove and fixed ring makes the installation and dismounting of dust screen become simple and convenient, the stability of dust screen is ensured by the fixation of mounting hole and screw, improves dust effect.

The utility model relates to a kind of pre-dedusting devices applied to biomass boiler flue gas treatment, belong to flue gas dust removal technical field, including dust collector body, ash bucket and rapping device, the dust collector body includes air inlet pipe, pre-dedusting chamber and exhaust pipe connected in order along airflow conveying direction, multiple dust blocking components are sequentially arranged in pre-dedusting chamber along airflow conveying direction, the dust blocking component includes two groups of dust blocking units spaced apart along airflow conveying direction, the dust blocking unit includes several V-shaped dust blocking plates spaced apart along vertical airflow conveying direction, the V-shaped mouth of each V-shaped dust blocking plate is oppositely arranged with airflow conveying direction. The ash bucket is set in the bottom end of pre-dedusting chamber, and the rapping device is set in the top end of pre-dedusting chamber.

The utility model relates to the field of coal mine energy resource utilization and energy -conserving and environment -protecting technology discloses a kind of coal mine cold and heat power district energy system based on ultra-low concentration gas mixed burning biomass boiler, including ultra-low concentration gas processing module, the biomass boiler module being communicated with ultra-low concentration gas processing module, steam turbine power generation module being driven by steam generated by biomass boiler module, and absorption refrigeration module working by receiving low-pressure steam discharged by steam turbine power generation module.The utility model solves the problem of low utilization efficiency of ultra-low concentration gas by mixing ultra-low concentration wind exhaust gas and low concentration extraction gas and adding them into boiler together with biomass for mixed burning, and can also provide cold and heat energy for coal mine.

The present application belongs to the technical field of combustion control, and particularly relates to a kind of intelligent monitoring regulation and control method of biomass boiler low-nitrogen combustion technology, comprising: collecting key operation data of furnace to construct time series data set;Current combustion quality evaluation value is calculated using time weighted sliding monitoring window;Based on historical data clustering, historical combustion state cluster is constructed, and current combustion quality benchmark value is obtained by matching;The combustion quality evaluation value is compared with the combustion quality benchmark value, the oxygen concentration time weighted value of target reference sample point is used to determine the air volume adjustment direction, and the air volume adjustment step factor is calculated;The proportional parameter of dynamic correction proportional integral differential controller is realized adaptive adjustment of air supply amount.The present application can continuously adjust the air supply amount with the change of combustion state, effectively overcome the regulation lag, improve the combustion stability, reduce the emission of nitrogen oxides and improve the boiler operation efficiency.

The utility model belongs to the technical field of energy equipment relates to a kind of biomass boiler, including biomass boiler ontology, and is equipped with smoke outlet on biomass boiler ontology, and the hearth of biomass boiler ontology is equipped with multiple vertical arrangements, and the smoke baffle for guiding the flue gas in hearth along serpentine path flows to smoke outlet, the nearest smoke baffle of smoke outlet is recorded as smoke baffle a, and gap is left between the upper end of smoke baffle a and the top of biomass boiler ontology, and smoke baffle a is equipped with through-hole, and the height of through-hole is higher than smoke outlet.The utility model is through being equipped with through-hole on smoke baffle a, improves the flue gas temperature of entering SCR reactor, so that the flue gas of final discharge reaches waste gas emission requirement.

The application discloses a coal-burning prevention coal hopper structure of a biomass boiler and a use method thereof, and relates to the technical field of boiler feeding, which comprises a feeding pipe, wherein the feeding pipe comprises a vertical section, a horizontal section and an inclined section which are sequentially communicated; two first baffles are arranged on the inner side wall of the top of the inclined section of the feeding pipe; two second baffles are arranged on the inner wall of the bottom of the inclined section of the feeding pipe; and the first baffles and the second baffles are staggered. Two feeding assemblies are arranged on the inner wall of the bottom of the inclined section of the feeding pipe. In the process of moving the transmission block, the movement of the baffle can be realized through the connecting seat, the ball head and the connecting rod, so that the baffle is drawn out of the feeding pipe, the materials in the feeding hopper enter the position below the baffle through the baffle, meanwhile, the other baffle seals the feeding pipe, and thus, the reheating phenomenon in the feeding pipe is avoided, and the materials in the feeding hopper are prevented from being burned.

The application provides a kind of biomass boiler flexible pipe group structure operating state data monitoring system and method.There is:Multi-source perception module, for the flexible pipe group structure is collected including pipe wall temperature distribution data, structural acoustic data and displacement data operating state data;Edge processing module, for generating fusible data object;State estimation module, for constructing coupling state model, and output state quantity associated with flexible pipe group structure;Abnormal identification module, for parallel computing residual abnormal indication of coupling state model and event indication of structural acoustic data;Evidence package generation module, for generating evidence package associated with anomaly;Output interface module, for output target pipe segment identification, state quantity and evidence package to upper system, for the operating state monitoring of flexible pipe group structure is used.The application can improve the consistency of multi-source monitoring data fusion, improve the accuracy of abnormal positioning, reduce false alarm and enhance traceability.

This utility model relates to the technical field of biomass boilers, and in particular to a hydraulic automatic feeding device for a biomass boiler. The device includes a biomass boiler body, with an adjustment mechanism on the outer surface and a cleaning assembly on the inner surface. This hydraulic automatic feeding device, through the arrangement of a support rod, connecting shaft, connecting block, electric slide, sliding column, pulley, slide rail, and slide groove, allows the electric slide to drive the sliding column and pulley to slide within the slide groove during operation. This enables the connecting block to be angled on the support rod via the connecting shaft, thereby adjusting the working angle of the feeding device to adapt to different operating conditions, improve production efficiency and safety, and reduce fuel blockage or wear problems caused by improper angle.