258 results about "Biomass combustion" patented technology

The invention discloses a digital twinning method and system for staged combustion of a coal-biomass fluidized bed. The method comprises the following steps: establishing a comprehensive database comprising three-dimensional simulation data and operation data of a coal-biomass fluidized bed boiler; modeling and coupling the gas phase and the particle phase by using a neural network to obtain a coal-biomass combustion model which is used for predicting a temperature field, a pressure field and a velocity field of the coal-biomass fluidized bed boiler; and finally, integrating the coal-biomass combustion model with a boiler PLC system of the coal-biomass fluidized bed to realize data transmission, so as to obtain a coal-biomass combustion digital twinborn model and realize real-time control and dynamic optimization. On-line real-time prediction of the boiler is achieved, and long-term updating of the model and continuous improvement of the intelligent level are achieved through continuous accumulation and dynamic training of operation data.

The invention belongs to but is not limited to the technical field of carbon emission accounting, and particularly relates to a biomass combustion carbon emission accounting method and system based on artificial intelligence, and the method comprises the steps: obtaining the multi-dimensional data of a biomass combustion process through data collection and preprocessing, and extracting key features through the statistical analysis and machine learning technology; and a suitable machine learning model is constructed to predict the carbon emission, and the carbon emission is calculated in real time. Meanwhile, the accounting process is optimized through adaptive learning and a multi-model integration method, and it is ensured that the model can cope with different combustion conditions and complex nonlinear relations. And finally, performing multi-dimensional analysis and verification on an accounting result, continuously optimizing the model through a dynamic feedback mechanism, and providing long-term carbon emission monitoring and trend prediction functions.

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 provides a biomass combustion in-situ measurement method based on spectrum and flame imaging. The biomass combustion in-situ measurement method comprises the following steps that a biomass sample is pretreated and conveyed to a dropper furnace combustion monitoring system through pneumatic conveying; preheating, and monitoring combustion parameters in real time through a temperature control system and a data acquisition system; the synchronous acquisition system is connected with the Fourier transform infrared spectrometer, the ICCD camera and the intermediate infrared camera; spectral information in a flame heat radiation (200 nm to 20 [mu] m) wave band is obtained, and free radical and smoke component images are collected; and finally, comprehensively processing and analyzing the data, and extracting key parameters such as temperature, radiation characteristics, component concentration and the like. According to the invention, multi-parameter in-situ synchronous measurement is realized, combustion surface temperature and radiation characteristics are accurately calculated in combination with an advanced algorithm, and free radical and flue gas component distribution is quantified through an imaging technology. An efficient and reliable technical means is provided for studying a biomass combustion mechanism, optimizing a combustion process and controlling pollution emission, and the biomass combustion device has important scientific research and application values.

The utility model relates to the technical field of biomass combustion furnaces, in particular to an automatic slag removal device of a biomass new energy furnace, which comprises a combustion box, a fixed grate arranged in the combustion box, a plurality of ventilation slots arranged in the fixed grate, a slag removal grate arranged on the lower side of the fixed grate in a sliding manner, and a plurality of groups of slag removal teeth arranged on the upper portion of the slag removal grate. The deslagging teeth are upwards arranged in the ventilation slots in a penetrating manner; and one end of the deslagging grate is connected with a reciprocating driving mechanism. When attached slag is generated through combustion, the motor can be started, the motor enables the eccentric shaft to slide in the length direction of the sliding groove while rotating in the sliding groove, the slag removal grate can be driven to reciprocate along the ventilation groove, the slag removal teeth are arranged in the ventilation groove in a penetrating mode, and automatic slag removal of the combustion box in the biomass new energy stove can be achieved through reciprocating motion of the slag removal teeth. Slag is prevented from blocking the ventilation slots to affect the combustion effect.

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 provides a biomass powder gasification nozzle, a gasification furnace and a biomass powder gasification method, and relates to the technical field of biomass combustion equipment. The nozzle comprises an outer ring nozzle, a middle ring nozzle, an inner ring nozzle and a center nozzle which are coaxially nested, an outer ring channel, a middle ring channel and an inner ring channel are sequentially formed between the outer side walls and the inner side walls of the adjacent nozzles, and a center channel is defined by the inner wall of the center nozzle. An inlet and an outlet are formed in the side wall of the inner ring channel, the inlet conveys a mixture of biomass powder and conveying gas, the outlet is located on the upstream of the inlet, a separator is arranged between the inlet and the outlet and used for separating part of conveying gas from the mixture and leading out the conveying gas to the outlet to be discharged, a swirler and a filter are arranged in the separator, and the swirler is arranged below the filter. According to the invention, after the biomass powder is conveyed to the inner ring channel along with the conveying gas, the separator separates part of the conveying gas from the mixture and discharges the part of the conveying gas from the outlet, so that the conveying gas sprayed out of the nozzle is reduced, and then inert gas entering the gasification furnace is reduced.

The invention discloses a method for synergistically preparing ceramsite from biomass combustion bottom slag and retired fan blades. The method comprises the following steps: respectively treating the biomass combustion bottom slag and the retired fan blades to obtain respective powder; 50-90 parts of biomass combustion bottom slag powder and 10-50 parts of retired fan blade powder are mixed to obtain a mixed raw material, and then the mixed raw material is granulated into wet raw material balls; performing aging and drying treatment on the wet raw material nodules obtained in the step 2 to obtain dry raw material nodules; 3, calcining the dry raw material balls obtained in the step 3 to obtain calcined ceramsite; according to the invention, the complementarity of the two raw material components is utilized, a foaming agent or a fluxing agent does not need to be additionally added, the produced ceramsite has remarkable performance, and the heavy metal leaching concentration is far lower than the limit value specified by the standard. The purpose of resource utilization of the biomass combustion bottom slag and the retired fan blade is achieved, and the preparation method has the advantages of being high in efficiency and low in energy consumption and has economic benefits and environmental benefits.

The invention relates to the field of biological energy sources, in particular to an anti-sintering biomass fuel. According to the manufacturing method of the anti-sintering biomass fuel, biomass materials and an anti-sintering agent are adopted, and the biomass materials comprise straw and rice hulls; walnut shells and miscellaneous trees; the adding mass fraction of each substance is 25-50 parts of the straw; 15 to 25 parts of rice husk; 5-10 parts of walnut shells; 5-13 parts of weed tree; and 0.5-2 parts of an anti-sintering agent, wherein the anti-sintering agent is a water-containing aluminosilicate mineral. The biomass fuel disclosed by the invention is low in water content, high in combustion value, low in ash content, low in water content and capable of separating ash and slag. The combustion time is long, and when the temperature reaches about 450 DEG C, hydroxyl groups between layers of the anti-coking agent overflow in the form of water, so that the anti-coking agent is not easy to slag.

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 discloses crushing equipment for waste biomass combustion heat supply, and relates to the technical field of waste biomass crushing. The shaking sieve mechanism, the cutting mechanism and the crushing roller mechanism are sequentially assembled on the rack from top to bottom in the waste material moving direction; the sieve shaking mechanism comprises a first support and a first box body fixed with the upper part of the first support; the stepped screening assembly is arranged in the first box body; and the eccentric vibration wheel assembly is arranged on the first box body. Impurity removal and separation, large-size shearing and crushing operation are sequentially conducted on waste, impurities are rapidly screened out, the purity of the waste is improved, and the large-size waste is pretreated, so that waste particles machined by the crushing roller mechanism can better meet the fine and uniform form required by the final purpose; therefore, stable control of subsequent procedures such as conveying, drying and granulation and unification of product quality are facilitated.

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

The present application belongs to the technical field of stove, and particularly relates to a domestic biomass stove. The domestic biomass stove comprises a shell body and a combustion chamber in the shell body. The combustion chamber comprises a cylinder body, and the upper part of the cylinder body is provided with a smoke outlet. The cylinder body is provided with a slit-type burner. The top of the slit-type burner is closed, the bottom is open, and a plurality of through holes are arranged on the outer wall of the slit-type burner. A plurality of baffles are arranged in the slit-type burner along the height direction. One side of the cylinder body is provided with an upper smoke box and a lower smoke box. The upper smoke box and the lower smoke box are connected through a convection tube bundle arranged between the two. The upper smoke box is connected with the smoke outlet, and the lower smoke box is provided with an air outlet. The shell body, the convection tube bundle, the upper smoke box and the lower smoke box form a heating water cavity, the cylinder body and the shell body form a cooling water cavity, and the cooling water cavity and the heating water cavity are connected. The present application effectively inhibits slagging and coking in the biomass combustion process, so that farmers can use cheap fuel for winter heating.

The invention provides a fluidized bed combustion system and a combustion method. The fluidized bed combustion system comprises a fluidized bed combustion reaction device and a mild gasification reaction device, the fluidized bed combustion reaction device comprises a dilute-phase region arranged in the middle and a dense-phase region arranged at the lower part; a gas phase outlet of the mild gasification reaction device is connected with a gas phase inlet of the dilute phase zone, and a solid phase outlet of the mild gasification reaction device is connected with a solid phase inlet of the dense phase zone. The system is stable in combustion, high in denitration efficiency, compact in structure, easy and convenient to operate, low in operation cost and suitable for low-nitrogen transformation and new projects of coal and biomass combustion devices, and has good industrial application prospects and popularization value.

The invention relates to the technical field of biological energy, and particularly discloses a method for producing hydrogen by using a coal mine goaf, which comprises the following steps: mixing pretreated agricultural organic wastes with fermentation liquor and a culture solution containing a methane inhibitor, and conveying the mixture to the coal mine goaf through an injection well; utilizing natural ground temperature conditions in the goaf to enable microorganisms to perform co-fermentation on residual coal in the goaf and the injected agricultural organic waste to produce hydrogen; produced hydrogen is collected and output through a gas producing well, and fermentation residues are discharged through a material producing well. According to the hydrogen production method provided by the invention, the goaf is used as a natural reactor, and two wastes are synergistically converted, so that the hydrogen production cost and energy consumption are greatly reduced, meanwhile, environmental pollution is effectively avoided, and a new green way is provided for resource utilization of waste mines.

The invention discloses an environmentally friendly biomass combustion furnace, which is mainly composed of: a furnace body (1) and a feeding mechanism (2), wherein the discharge end of the feeding mechanism (2) is arranged inside the furnace body (1), and the feeding end of the feeding mechanism (2) is arranged outside the furnace body (1), and the furnace wall of the furnace body (1) is provided with a heat collecting port, and the heat collecting port is connected to a drying chamber (3) through a connector (31); the environmentally friendly biomass combustion furnace of the invention has a simple structure and is easy to operate. The feeding mechanism is used to automatically load the materials, and the feeding hopper with a weighing device can accurately control the amount of raw materials entering, thereby avoiding unnecessary waste. The "S"-shaped heat collecting channel prevents the combustion chamber and the feeding port and the connector on the heat collecting port from being directly baked by the internal flame, thereby increasing the service life of the connector and reducing the production cost.

The invention provides a method for roasting-leaching clay type lithium ore by replacing a roasting aid with biomass, and belongs to the technical field of ore dressing processes. According to the method, the plant ash generated after biomass combustion is used for replacing part of alkali-containing salt or alkali in the clay type lithium ore so as to achieve the purpose of alkali roasting-water leaching, the sintering condition of a roasting auxiliary and the clay type ore can be effectively reduced through addition of the plant ash, and bulk consumption of solid waste of the plant ash is achieved. The invention provides a mixed roasting-water leaching method of plant ash generated after biomass combustion and clay type lithium ore, so that the consumption of a roasting auxiliary agent is greatly reduced (the consumption of an alkaline agent is reduced by 50-80%), the phenomenon that the roasting auxiliary agent and the clay type ore are easy to sinter at high temperature is improved, clean and effective utilization of biomass is realized, and the method is suitable for industrial production. The lithium obtained through the method is high in leaching rate and low in cost.

The utility model discloses a novel biomass combustion furnace deashing device, which relates to the technical field of combustion furnaces, and comprises a furnace body, a support frame is fixed on the inner wall of the furnace body, two groups of fire grates are mounted at the top of the support frame, the fire grates are semicircular, a mounting component for mounting the fire grates is arranged at the top of the support frame, and the mounting component is fixed on the inner wall of the furnace body. The utility model has the beneficial effects that when the cam rotates to a high position, the two groups of fire grates are driven to vibrate up and down, the fire grates are vibrated to clean ash through the repeated rotation of the cam, the fire grate structure is a trapezoidal structure gap with a small upper part and a large lower part, the effect of only falling ash without falling materials is achieved under the vibration effect, the air inlet of a hearth is facilitated, and the energy consumption is reduced. A good ash removal effect is achieved under the conditions that the cam keeps a reasonable stroke and an existing combustion layer is not damaged, the two fire grates are combined into a circle, the fire grates are of a two-piece structure, and the fire grates can be conveniently taken out from an access hole.

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 discloses a novel biomass combustion furnace chimney device, which relates to the technical field of combustion furnaces, and comprises a furnace body, the top of the furnace body is provided with a radiator for carrying out heat exchange on combustion flue gas, one side of the radiator is communicated with an air outlet pipe, the top of the air outlet pipe is provided with a chimney body, and the chimney body is communicated with the radiator. The chimney has the advantages that the inclined pipe is beneficial to stabilizing the airflow in the chimney, if a straight-barrel-shaped chimney is adopted, the situation that the pulling force of the chimney is not enough can be generated in the high-speed working process of a fan, the airflow in the chimney needs to be supplemented through the inclined pipe, and therefore the chimney is not prone to being damaged. Otherwise, the overall length of the chimney needs to be increased, the cost is increased, the air outlet space of the connecting pipe is blocked through movement of the baffle, and therefore the effect of adjusting the air quantity entering the chimney body is achieved, and the air speed is adjusted according to the feeding and combustion conditions in the hearth.

The invention relates to a system and a method for hydrogen production and co-production of methanol and fresh water based on wastewater and biomass. The system comprises a biomass combustion unit, an electrolyzed water coupling low-temperature distillation integrated system and a methanol preparation unit, wherein the electrolyzed water coupling low-temperature distillation integrated system comprises an alkaline electrolytic bath unit, an oxygen separation cooling unit, a hydrogen separation cooling unit, a hydrogen purification cooling unit, an alkali liquor circulating filtering unit and a unit for preparing fresh water from wastewater. The wastewater is directly introduced into the electrolyzed water coupling low-temperature distillation integrated system, prepared oxygen is supplied to the biomass combustion unit, the final product is effectively utilized, and the occupied area is small; fresh water generated by the wastewater-to-fresh water unit serves as an electrolyzed water raw material to be supplemented to the alkaline electrolytic cell unit, and dependence on fresh water resources is relieved; and the wastewater and the biomass are finally and completely changed into high-concentration hydrogen, oxygen, fresh water and methanol, the generated fresh water is far superior to the traditional wastewater which reaches the standard and is discharged, and the resource utilization of the wastewater is realized.

The utility model discloses a biomass combustion gas hot air boiler, the inner side of a rotating seat is embedded and rotatably connected with a rotating rod, the top end of the rotating rod is provided with a rotating blade, and the edge end of the rotating rod is fixedly connected with four linkage rods at equal angles at the bottom of the rotating blade; the bottom ends of the four linkage rods are connected with connecting rods at equal intervals, and the bottom ends of the connecting rods are fixedly connected with material turning shovel plates. Heat airflow generated in the combustion process is used for driving the rotating blades to rotate, and the rotating rods are synchronously driven to rotate; according to the biomass particle combustion device, the linkage rod, the connecting rod and the material turning shovel plate can be conveniently driven to rotate on the inner side of the combustion hearth, the material turning shovel plate moves along the top face of the leakage net, biomass particles accumulated in the combustion hearth can be conveniently turned through rotation of the material turning shovel plate, and therefore the biomass particles can be combusted more thoroughly, and the combustion effect is guaranteed.

Aspects of the present invention provide biomass combustion stove with an exhaust gas mixer. The exhaust gas mixer is positioned in the exhaust gas outlet of the stove. That is the exhaust gas mixer is positioned within the path of exhaust gases exiting the stove housing at the point where the exhaust gases exit the housing, above a baffle of the stove. The exhaust gas mixer may be a cone, a pair of opposing cones, a sphere, turbine, propeller, partial helical, or fan configured to promote mixing and / or turbulence of the exhaust gases as they exit the housing. In one embodiment, the stove provides some room air to the exhaust gas outlet and flue above the baffle to cool the exhaust gases as they exit the housing via the exhaust gas outlet of the stove.

The invention discloses a biomass combustion flue gas desulfurization and denitrification system and method.The system comprises a denitrification device, a dust removal device, a purification device and a desulfurization device which are sequentially connected, a purification chamber and a treatment chamber which are distributed up and down are arranged in the purification device, and the purification chamber is filled with activated carbon particles; activated carbon particles are controlled to enter and exit through the top sealing assembly and the first blocking mechanism, the treatment chamber is used for conducting regeneration treatment on the activated carbon particles adsorbing flue gas impurities, and the material moving mechanism in the collecting chamber achieves cyclic utilization of the activated carbon particles. The biomass combustion flue gas purification device achieves the effect of efficiently purifying harmful substances in the biomass combustion flue gas.

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 a device and a method for improving air permeability of a thick bed by utilizing biomass fuel. The device comprises a T-shaped frame and a cross rod, the T-shaped frames are arranged in a bilateral symmetry mode, and the horizontal ends of the T-shaped frames face downwards. The cross rod is correspondingly and fixedly connected between the upper portions of the vertical ends of the T-shaped frames on the two sides. The method comprises the following steps: S1, preparing hydrogen-rich biomass; s2, forming the biomass combustion rod; and S3, sintering application. According to the invention, biomass which is a renewable clean resource is reinforced and applied to the field of sintering production, so that carbon emission is effectively reduced, and dependence on carbon-containing fuel in the sintering process is reduced; and meanwhile, the matching device can effectively improve the material layer air permeability in the thick material layer sintering process, and the effects of increasing yield and reducing consumption are achieved.

The present invention discloses a biomass combustion furnace for coating equipment, whose structure includes a material guide box, a feeding hopper and a combustion furnace. The top of the material guide box is embedded and connected with the bottom of the feeding hopper, the left side of the feeding hopper is in clearance with the combustion furnace as a whole, the right wall of the combustion furnace is nested and connected with the left wall of the material guide box, the material guide box includes a sectioner, a pusher, a feeding pipe and a heat insulation platform, and the end of the feeding pipe is nested and connected with the right wall of the combustion furnace. The present invention blocks biomass combustion raw materials through a sectioner, and the material blocking block is closed after releasing a batch, and the counterweight groove assists the material blocking block to release the raw materials after re-weighting, and indirectly unfolds the material blocking rod through a transmission belt, so that the internal residue and the newly added combustion raw materials are released, and are sent to the furnace through the feeding pipe after release for combustion, thereby achieving a time difference, effectively avoiding the problem of excessive supply of biomass raw materials inside the furnace body, resulting in accumulation and burial of raw materials, and insufficient combustion and generation of a large amount of smoke.

The invention provides a combustion method for mixing biomass fuel and a grate-fired furnace, and relates to the technical field of biomass combustion. The combustion method of the blended biomass fuel comprises the following steps: mixing high-quality biomass and low-quality biomass to form blended biomass; and the mixed biomass is placed in a grate-fired furnace to be burnt, and when flames are stable, mixed biomass fuel powder is sprayed into the grate-fired furnace till the mixed biomass is burnt out. The burn-off rate of the blended biomass is high, and compared with single combustion of low-quality biomass fuel, the emission amount of CO is reduced by 10%-20%, and the emission amount of NO is reduced by about 30%; after the grate-fired combustion is stable, the mixed biomass fuel powder is sprayed to support combustion in a suspension mode, an efficient combustion mode combining grate-fired combustion and suspension combustion is obtained, the heat efficiency of the grate-fired furnace is improved, and compared with non-suspension combustion-supporting combustion and suspension combustion-supporting combustion, the emission amount of CO and NO in a hearth is reduced by 35%-45%, and the emission amount of NO is almost unchanged. High-efficiency and clean combustion of the blended biomass can be realized through blending of high-quality and low-quality biomass and suspension combustion supporting, and the environment-friendly cost is reduced.

This invention discloses a biomass combustion boiler for purifying waste gas, relating to the field of environmentally friendly combustion furnaces. It solves the problem of incomplete biomass combustion leading to excessive black smoke in the waste gas, affecting purification efficiency. The biomass combustion boiler for purifying waste gas includes a metal support frame, a waste gas purification tower, and a waste gas guide pipe. The purification boiler structure is installed at the top of the metal support frame. The purification boiler structure includes a combustion-supporting telescopic rod, a cover-opening telescopic rod, an inner cylinder, and an outer cylinder. The output end of the cover-opening telescopic rod is connected to a combustion chamber top cover, which pushes the combustion chamber top cover to flip, opening and closing the outer cylinder. The output end of the combustion-supporting telescopic rod is connected to a metal support plate, which pushes the metal support plate up and down to shake the inner cylinder. This invention designs a double boiler (inner and outer cylinders) that can reduce boiler temperature. Biomass fuel is placed in the inner cylinder for combustion, and is cooled by incoming air, extending the boiler's combustion time, resulting in more complete combustion and introducing more air.

The invention relates to the technical field of environmental engineering, in particular to a method for treating wastewater produced by alkaline pretreatment of a cellulose raw material. The method comprises the following steps: step 1, carrying out solid-liquid centrifugal separation; 2, adjusting the pH value of the wastewater I; step 3, diluting the wastewater II; step 4, performing solid-liquid separation on the kettle residues to obtain wastewater IV; 5, carrying out anaerobic biochemical reaction on the wastewater; step 6, carrying out catalytic ozonation reaction on the wastewater; and 7, carrying out biochemical treatment on the wastewater. Fuel biogas is generated in the anaerobic biochemical treatment process of the cellulosic ethanol wastewater, and the fuel biogas belongs to a biological energy source, so that the energy utilization rate is increased; the biodegradability of the wastewater can be improved through the catalytic ozonation reaction, the biochemical effect can be improved by adopting a biological aerated filter in aerobic biochemical treatment, and the COD value of the cellulosic ethanol wastewater can be greatly reduced, so that the energy consumption is reduced.