98 results about "Embodied carbon" patented technology

The invention relates to a time-sharing measurement device for carbon content in flue fly ash. The device mainly comprises a sampler, a detection part and a control module, the sampler is provided with a plurality of sampling pipes, each sampling pipe is provided with an adjusting valve, time-sharing sampling is achieved through PLC logic control, and full-time-period fine coverage is ensured. The separation component separates fly ash from gas and collects a fly ash sample, and the detection component integrates a spectral analysis unit and a data processing unit, performs spectral analysis on the fly ash sample and calculates the carbon content. According to the method, multiple objective functions such as the fly ash carbon content, the combustion efficiency and the system stability are optimized at the same time by selecting multi-dimensional equipment process parameters and fly ash measurement data and adopting an evolutionary optimization algorithm, global optimization is achieved, the dependency relationship among the process parameters is fully considered, falling into a local optimal solution is avoided, the optimization efficiency is improved, and the method is suitable for popularization and application. The method can systematically coordinate the contradictory relation among all targets, achieves the maximization of the operation efficiency of the system while detecting the fly ash, and enables the combustion system to operate stably.

The invention relates to the technical field of building energy conservation and carbon emission, in particular to a building full-life-period carbon emission calculation method based on running carbon and implicit carbon, and the method specifically comprises the following steps: building carbon emission calculation models of a reference building and a design building; the whole life period of the building is divided into running carbon and implicit carbon; constructing a three-level index system, namely a total amount index, a strength index and a relative index; respectively calculating the emissions of operating carbon and implicit carbon of the two carbon emission calculation models; respectively carrying out carbon reduction calculation on the two carbon emission calculation models; calculating a total carbon emission amount index and an intensity index of the two carbon emission models, and further calculating a relative index; and judging whether the carbon emission of the designed building reaches the standard or not according to the third-level index result, and if not, readjusting. According to the method, a building full-life-period carbon emission calculation model containing running carbon and implicit carbon is constructed, the calculation precision is improved in combination with a three-level index system, and design optimization of zero-carbon buildings and green buildings can be assisted.

The utility model provides a building structure capable of reducing carbon emission, which comprises a building body, an equipment room arranged on the shady side of the building body, glass walls arranged on other sides of the building body, a plurality of groups of air conditioning equipment arranged in the equipment room, an exhaust pipeline arranged on the upper side of the equipment room, and glass planting cover bodies arranged on the inner sides of the glass walls. A waste discharge pipe is arranged between the exhaust pipeline and the glass planting cover body in a communicating mode, a protective sleeve is arranged on the outer side of the lower portion of the glass planting cover body, a gravel layer and a soil layer are arranged at the bottom of the glass planting cover body, irrigation pipes are installed on the inner walls of the two sides of the U-shaped mesh frame, a glass sealing door is arranged on one side of the glass planting cover body, and an exhaust groove is formed in one side of the glass planting cover body in a penetrating mode. Compared with the prior art, the ornamental plant planting cover has the advantages that ornamental plants are planted in the glass planting cover body, high-altitude air which is generated by equipment in the equipment room and has relatively high carbon content is purified through photosynthesis of the plants and then discharged to the outside air, and the carbon emission of a building is reduced.

The invention belongs to the technical field of electric power big data, and particularly relates to a carbon emission monitoring method and system based on electric power big data. According to the method, the power related data of the target area is obtained from the data center, the time sequence data set is constructed and input into the electric carbon calculation model trained based on the ARDL-ECM model, the energy consumption amount is rapidly predicted, and then direct carbon emission is determined. Meanwhile, indirect implicit carbon emission is calculated in combination with the called-in power data and the power emission factor, and the final carbon emission is comprehensively obtained. According to the scheme, high efficiency, low cost and wide applicability of carbon emission monitoring are realized by utilizing the real-time and high-frequency characteristics of electric power big data and combining the prediction capability of a machine learning model.

The invention discloses a coal-fired boiler combustion optimization method, system and equipment based on machine learning and a medium, and belongs to the technical field of boiler operation optimizing.The method comprises the steps that operation parameter data and generated fly ash carbon content data are collected; constructing a machine learning model, and performing primary training on the machine learning model; the number of operation parameter data is reduced, secondary training is performed on the machine learning model, and the optimal parameter number is determined according to the fitting effect; screening the operation parameter data, and reserving the operation parameter data of which the quantity accords with the optimal parameter quantity; the method comprises the following steps: constructing a fly ash carbon content prediction model, optimizing an extreme value of the fly ash carbon content prediction model through an optimization algorithm, and determining an optimal boiler combustion operation parameter, and solves the problems that the actual measurement workload is large and the lowest fly ash carbon content cannot be obtained by only depending on a thermal-state multi-working-condition test and easily deviating from the optimal working condition; the existing prediction method has the problems that a local optimal solution is easy to generate and the generalization ability of a model is low.

The invention discloses a preparation method of a hard carbon negative electrode material and a hard carbon negative electrode pole piece and a sodium ion battery thereof, and the preparation method comprises the following steps: firstly, pretreating a hard carbon precursor, including crushing, screening and purifying to obtain purified hard carbon precursor powder; then carrying out glow discharge plasma treatment on the purified hard carbon precursor powder; carrying out high-temperature carbonization in a high-temperature tube furnace under the protection of an inert atmosphere to obtain a hard carbon negative electrode material; the hard carbon negative electrode material is prepared into a pole piece, the prepared pole piece is subjected to surface treatment through glow discharge plasma under different gases, and the treated hard carbon negative electrode piece is obtained. An electrochemical performance test proves that the hard carbon negative electrode material after plasma treatment shows high sodium storage capacity and first coulombic efficiency in a sodium ion battery. The used raw materials are cheap and easy to obtain, the carbon content is high, the preparation process is simple and easy to operate, no catalyst needs to be introduced, and the method is environmentally friendly, is an effective way for efficiently preparing the low-cost negative electrode material and is suitable for industrial production.

A method for synthesizing nitrogen-doped carbon quantum dots. The method includes reacting a mixture of a fruit waste material, a nitrogen source, and deionized water hydrothermally in an autoclave at a reaction temperature in a range of 150° C. to 250° C. to form a nitrogen-doped carbon quantum dot containing suspension. The method includes centrifuging the carbon quantum dot containing suspension to separate the nitrogen-doped carbon quantum dots from a hydrochar. The method includes filtering the nitrogen-doped carbon quantum dot containing suspension to obtain the nitrogen-doped carbon quantum dots. The nitrogen-doped carbon quantum dots have a size ranging from 1 to 5 nanometers (nm). The nitrogen-doped carbon quantum dots have a Stokes shift of at least 140 nm at an excitation wavelength of 300-420 nm.

In order to solve the technical problem that an existing compressed air dehydration and decarbonization device is high in energy consumption, the utility model provides an energy-saving compressed air dehydration and decarbonization device which comprises a dehydration device and a vacuum analysis molecular sieve suction and decarbonization device which are connected in sequence, the dehydration device is used for removing moisture contained in the compressed air, so that the moisture content in the compressed air meets the set requirement; according to the vacuum desorption molecular sieve suction decarburization device, decarburization is realized on the basis of minimum finished product gas consumption by utilizing a vacuum desorption principle, so that the carbon content in gas meets a set requirement, and compared with an existing dehydration decarburization device, the vacuum desorption molecular sieve suction decarburization device is lower in energy consumption.

The present invention relates to a solar energy harvesting system preferably mounted in a relatively flat position and isolated from its external operating weather environment to maximize automated installation, minimize embodied carbon dioxide footprint, and minimize deployment and environmental uncertainties driving up total installed system cost. The environmental weather isolation further empowers solar design features by minimizing and isolating structural design load requirements away from the objects receiving the solar energy through a multifunctional film that isolates the objects receiving solar energy from the weather.

The invention provides an evaluation method and system for carbon emission factors of fuel and a storage medium, and relates to the technical field of environmental protection and energy conservation, and the method comprises the steps: obtaining a plurality of historical carbon emission factors corresponding to the fuel and historical data of external factors; based on the historical carbon emission factors and the historical data of the external factors, screening out influence factors corresponding to the carbon emission factors from the external factors; based on the influence factors, determining significant influence factors corresponding to the carbon emission factors; matching each significant influence factor with different weight coefficients, and acquiring actual data of each significant influence factor; and determining an actual carbon emission factor based on the weight coefficient and the actual data. Under the condition that the carbon emission does not need to be accurately measured, a professional laboratory is not needed to carry out chemical analysis on the carbon content and the carbon oxidation rate of fossil fuel to obtain the fuel carbon emission factor, the time hysteresis of carbon emission accounting is effectively shortened, and the requirements of enterprises for real-time monitoring of carbon emission and dynamic adjustment of the production process are met.

The utility model relates to a biomass gasification control system which comprises a furnace body, a feeding assembly, an air supply assembly, a discharging assembly, a detection assembly, a feeding controller, an air pressure controller and a discharging controller, the feeding assembly, the air supply assembly and the discharging assembly are all communicated with the furnace body, and the detection end of the detection assembly is installed in the furnace body. The detection assembly is used for detecting pressure information and material level information in the furnace body, the feeding controller is connected with the detection assembly and the feeding assembly and controls the feeding assembly to act according to the material level information, the air pressure controller is connected with the detection assembly and the air supply assembly and controls the air supply assembly to act according to the pressure information, and the discharging controller is connected with the discharging assembly and controls the discharging assembly to act according to the pressure information. The control assembly is used for controlling the discharging speed of the discharging assembly; according to the requirement of a client for the carbon content of biomass charcoal, the discharging controller can adjust the time of the biomass charcoal staying in the furnace body through the discharging control assembly, and therefore the charcoal production quality is controlled.

The invention provides a power industry carbon emission efficiency measuring and calculating method and device based on Non-radial DDF and SBM models, and the method comprises the steps: carrying out the decision-making unit division of a to-be-measured region, and obtaining independent decision-making units; related information of each independent decision-making unit is collected, and the related information comprises the fossil fuel consumption of each independent decision-making unit, the carbon content of fossil fuel unit energy, the employment number of the power industry and the fixed capital net value of the power industry; an SBM model and a Non-radial DDF model are constructed, and a comprehensive carbon emission efficiency evaluation system is constructed based on the constructed SBM model, the Non-radial DDF model and the related information of each independent decision unit; and determining the carbon emission efficiency based on the comprehensive carbon emission efficiency evaluation system. In this way, the carbon emission efficiency of the power industry can be measured and calculated more accurately, the overall carbon emission efficiency of the power industry is improved, and the regional carbon emission cost is reduced.

The invention belongs to the technical field of carbon materials, particularly relates to an application of a carbon material taking soot as a carbon source in an energy storage device, and provides a preparation method of a regenerated carbon material for soot particulate matters discharged by a diesel engine, for the first time, the soot is put forward as a nanoscale conductive carbon material source, the raw material source is stable, and the cost is nearly zero; as the diesel soot is a carbonized product (the carbon content is greater than 80%), the independent activation or pre-carbonization step required by preparing a carbon material by taking biomass or a polymer precursor as a raw material is omitted, the production process can be simplified, and the energy consumption can be reduced; the carbon material obtained after one-step activation and carbonization process treatment is carried out on soot particles discharged by a diesel engine, and the carbon material obtained after treatment is good in conductivity and can be used as a supercapacitor electrode material, a lithium ion battery negative electrode material, a conductive agent or other conductive carbon materials.

The application discloses a circulating fluidized bed boiler with ash partition measurement, comprising: a furnace, a separator and an ash parameter analysis system; the furnace has at least two regions in the circumferential direction, and a bottom slag sampling device for obtaining a bottom slag sample of each region is arranged below each region; a separator is correspondingly arranged above each region, and a fly ash sampling device is arranged at the separator outlet flue at the top of each separator, which is used for obtaining a fly ash sample of the corresponding region; the ash parameter analysis system is in communication with the bottom slag sampling device and the fly ash sampling device. The ash parameter partition measurement method is adopted to quickly obtain the particle size distribution and carbon content of the ash in different regions, the obtained data are used to guide the operation personnel to accurately adjust the fuel quantity, air quantity, circulating material and slag discharge quantity of different regions, the local fluidization is reduced, the combustion in the oxygen deficiency region is improved, the content of combustible substances in the ash is reduced, and the overall fuel combustion efficiency is improved.

The invention discloses a simplified online monitoring method for the combustion efficiency of a power station boiler, and belongs to the technical field of thermal equipment performance state monitoring and diagnos.The method comprises the steps that unit generation power, the fuel quantity, the total air volume and coal composition parameters are collected; calculating fuel converted carbon content, lower calorific value, theoretical air quantity and excess air coefficient; defining a carbon burnout coefficient and a fuel characteristic coefficient, and constructing and iteratively solving an incomplete combustion equation taking the carbon burnout coefficient as an unknown number; and calculating the combustion efficiency of the boiler according to the solved carbon burnout coefficient. According to the method, the carbon contents of the fly ash and the slag are unified to the carbon burn-out coefficient, and based on combustion mechanism derivation, high-precision and all-working-condition online monitoring of the boiler combustion efficiency can be realized without an additional expensive monitoring instrument, and the technical problem that the boiler combustion efficiency is difficult to accurately monitor online is solved.

The invention relates to the technical field of bituminous coal carbon content prediction, and discloses a bituminous coal coal quality industrial analysis-based unit calorific value carbon content prediction method, which comprises the following steps of 1, sampling a target coal type for industrial analysis, and detecting the total moisture Mt, the ash content Aar, the volatile component Var and the fixed carbon FCar content of the target coal type; measuring the calorific value of the sampled coal to obtain the lower calorific value Qnet, ar of the coal type; step 2, calculating a dry ash-free basis volatile component Vdaf and a lower calorific value Qnet, daf of the target coal type; 3, predicting the carbon content CQdaf of the dry ash-free basis unit calorific value of the target coal type; and step 4, calculating the unit calorific value carbon content CQar of the target coal type. According to the method, the unit calorific value carbon content of the bituminous coal can be accurately predicted, and coal purchase is guided; the coal carbon content is further calculated by using the unit calorific value carbon content calculated by the method, the prediction precision is very high, and the correlation coefficient can reach 1-10-10.

This invention discloses a low-carbon peak-shaving system and method for using ammonia-blended fuel. The low-carbon peak-shaving system includes a coal-fired boiler, a coal-fired burner, an ammonia burner, a coal-fired generator, a clean energy generator, an ammonia preparation device, an ammonia storage system, ammonia pipelines, a first switch, a second switch, a third switch, a first transformer, a second transformer, a third transformer, output lines, and a power grid. The ammonia preparation device, the ammonia storage system, and the ammonia burner are connected via ammonia pipelines. This invention utilizes the excess electricity generated by the coal-fired unit to produce ammonia, enabling the actual grid-connected power of the coal-fired unit to reach the required grid-connected power. Under full load of the coal-fired unit, ammonia is injected into the main combustion zone of the furnace using a suitable flow rate and method, while controlling the combustion stability within the furnace and the NO at the furnace outlet. X Under the premise that the concentration and carbon content of fly ash have a relatively small impact, the system's renewable energy absorption capacity and carbon emissions can be effectively improved.

The invention discloses a coal gasification fine slag incineration system which comprises a sorting device, a first drying device, a conveying device, a granulating device and an incineration device. Wherein the sorting device is used for separating the gas refining slag into a first material and a second material, and the carbon content of the first material is larger than that of the second material; the first drying device is used for drying a first material, and the first drying device is communicated with the black water tank; the conveying device is used for conveying the dried first material; the granulating device is used for treating the dried first material and obtaining a granular material; the incineration device is used for incinerating particle materials. According to the coal gasification fine slag incineration system, due to the fact that the first material is sorted out and incinerated, the heat value of the material entering the incineration device can be increased; the first material forms a particle material and enters the incineration device, so that the retention time of the material in the incineration device can be prolonged. Therefore, the combustion efficiency and the burn-off rate of the coal gasification fine slag can be improved.

Composite materials and methods of manufacturing the same are described herein. The composite materials include electrochemically synthesized carbon structures manufactured using CO2 as a carbon source. The composite structures can further include cellulosic fibers and carbon waste fibers. The composite materials are manufactured using a method which provides negative embodied carbon in the composite material.

The application discloses a multi-parameter regulated boiler combustion efficiency dynamic optimization method. The specific operation steps are as follows: real-time acquisition of combustion parameters from a power plant system, pre-processing of the collected original data, and feature selection after data pre-processing; the feature data selected and pre-processed are taken as input according to time sequence to construct an IGWO-transformer prediction model; taking the degree of electricity coal consumption, nitrogen oxide emission concentration and fly ash carbon content as optimization targets, a NSGA-III algorithm is used for multi-objective optimization; aiming at the control requirements of the feature data, an independent PID controller is configured for each control object, the actual value collected is compared with the target set value, the control deviation is calculated as the input signal of the PID controller, and the controller is driven to perform dynamic adjustment. The application has the beneficial effects that the data processing and generalization ability are enhanced, accurate prediction and regulation are realized, and the combustion efficiency is improved; the economy and environmental protection are balanced, and dynamic optimization is realized.

The invention provides industrial sludge and plastic co-pyrolysis biochar as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, performing plasma pretreatment, drying, crushing and screening on industrial sludge; s2, the waste plastic is cleaned, dried, crushed and screened; s3, sufficiently mixing industrial sludge, waste plastic and an activating agent to obtain mixed powder, and pyrolyzing and carbonizing the mixed powder in an inert atmosphere; s4, after the carbonized solid is naturally cooled, acid pickling, cleaning, drying and grinding are conducted, industrial sludge and plastic co-pyrolysis biochar is obtained, namely, metal and heteroatom co-doped biochar M-HA-C can be used for electrocatalytic reduction of carbon dioxide. The biochar is higher in specific surface area, porosity and carbon content, good in structure and excellent in performance, the method is economical, efficient and suitable for large-scale production, and the obtained electrocatalytic reduction carbon dioxide electrode material has higher energy density and cycling stability.

The application discloses a method for determining a blast furnace gas blending ratio of a coal-fired power plant boiler, which comprises the following steps: firstly, assuming a mass ratio z of the blast furnace gas entering the boiler to the actual burned coal; secondly, performing CO2 balance calculation by using the input coal quality characteristic parameters, the blast furnace gas characteristic data, the fly ash carbon content, the slag carbon content, the existing operation flue gas dry basis oxygen content, the dry basis CO2 volume fraction and the dry basis CO volume fraction; thirdly, obtaining the real mass ratio z of the blast furnace gas entering the boiler to the actual burned coal by iterative calculation of the CO2 balance; and finally, determining the final blast furnace gas blending ratio by combining the unburned combustible material with the supplied fuel mass ratio l u The application can determine the blast furnace gas blending ratio of the coal-fired power plant boiler, so as to meet the thermal state operation requirements of the coal-fired power plant, improve the economic operation level of the unit, and also can strengthen the accurate supervision on the blast furnace gas blending ratio.

The application discloses a biomass efficient low-nitrogen staged coupling combustion boiler with a double-layer arrangement, which comprises a lower reciprocating water tube boiler and an upper WNS fire tube boiler, wherein the WNS fire tube boiler is installed on the upper portion of the reciprocating water tube boiler; the reciprocating water tube boiler is composed of a biomass gasification furnace located at the front half portion and a mixed combustion furnace located at the rear half portion; a water-cooled furnace wall interval is arranged between the biomass gasification furnace and the mixed combustion furnace, and the bottom portions are communicated through a reciprocating grate; and a biomass gas outlet of the biomass gasification furnace is connected with a biomass burner installed in the WNS fire tube boiler. The biomass efficient low-nitrogen staged coupling combustion boiler with the double-layer arrangement has the advantages of simple structure, high operation efficiency, suitability for raw materials with different shapes and sizes, stable operation, small production intensity, easy processing and manufacturing, high matching property with a subsequent gas utilization system, safe and stable work, extremely low carbon content of the finally discharged residues, zero emission of pollutants, and the like, and is a model of circular economy and is suitable for various industries with steam demand.

Various embodiments include cementitious compositions with low levels of embodied greenhouse gas emissions, in particular carbon dioxide, as a result of its production and / or use compared to conventional cementitious materials, such as portland cement. Various embodiments include any cementitious material or materials with low embodied carbon, as well as any material produced using this cement.

The application discloses a kind of boiler combustion monitoring method and device, including to monitoring unit injection flue gas;Carbon dioxide concentration is detected to air inlet end and data is recorded;By injecting oxygen in reaction furnace, carbon particles in flue gas can be fully combusted in furnace;Carbon dioxide concentration is detected to air outlet end and data is recorded;The difference of carbon dioxide concentration in different ports determines how much residual carbon carried in flue gas.The beneficial effects of the present application are that by real-time detection of fly ash carbon content, it is convenient for staff to quickly record data and feedback maintenance, which is beneficial to guide the correct adjustment of wind-coal ratio and improve the level of boiler combustion control;Reasonably control the index of fly ash carbon content, which is beneficial to reduce power generation cost and improve the economy of unit operation.

This invention discloses a method, system, and medium for calculating emissions from fuel engines based on the hydrogen balance method, relating to the field of data processing technology. The method first acquires data such as fuel composition, emission concentration, intake air flow rate, temperature, and humidity; then calculates the actual exhaust mass flow rate based on the intake air flow rate or fuel flow rate; finally, it combines the exhaust molar mass and NO... x The system calculates pollutant mass flow rate by applying correction factors and pollutant concentrations. It includes data acquisition, exhaust flow calculation, and pollutant flow calculation units. This invention replaces carbon balance with hydrogen balance, is not limited by fuel carbon content, and is compatible with low-carbon and zero-carbon fuels such as highly hydrogen-blended fuels, methanol, pure hydrogen, and pure ammonia. Coupled with intake air humidity, turbocharging and intercooling, and exhaust component correction, it significantly improves the accuracy of exhaust flow rate and pollutant emission calculations, solving the problem of traditional carbon balance methods failing under zero-carbon fuel conditions. It is suitable for accurate emission measurement and certification of various engines.

Disclosed in the present invention is a systematic carbon emissions reduction method for a whole process of steel production and casting, comprising the steps of: hydrogen injection in a blast furnace. Hydrogen comes from a nuclear hydrogen production system, hydrogen production based on water electrolysis, and hydrogen production based on coke oven gas-steam reforming; electric energy consumed by hydrogen production based on water electrolysis comes from gas power generation, steam residual pressure power generation, solar power generation, wind energy power generation, and nuclear power generation; combustible gas used for gas power generation is coke oven gas, blast furnace gas, and converter gas; steam in steam residual pressure power generation comes from a sintering waste heat boiler; steam in hydrogen production based on coke oven gas-steam reforming is low-pressure steam after residual pressure power generation; the final product is a cast steel profile, a casting material of a high-carbon spheroidal graphite cast iron profile having a carbon content of 2-4% and a silicon content of 2-4%, and a casting material of a high-carbon spheroidal graphite cast steel profile having a carbon content of 1-2% and a silicon content of 1-1.9%; the waste of the final product enters a converter or an electric furnace for cyclic smelting.

The invention discloses an in-furnace low-cost and high-efficiency desulfurization operation method of a sintering flue gas collaborative purification device, explores a desulfurization method for creating an oxygen-deficient atmosphere in a hearth, and realizes stable combustion and high-efficiency and stable operation of a boiler at the same time. The oxygen content of tail smoke is adjusted to 3%-4%, the carbon content of furnace bottom slag is adjusted to 2% or below, and the carbon content of fly ash is adjusted to 6% or below; the supply amount of sintering flue gas input into a hearth is gradually reduced, the excess air coefficient of the boiler is adjusted to be 1.1 or below according to the ratio of the supply amount of the solid waste fuel of the boiler to the supply amount of the sintering flue gas, and the boiler is made to work in the state that the oxygen content of tail flue gas is 3%-4%, the carbon content of furnace bottom slag is 2% or below, and the carbon content of fly ash is adjusted to be 6% or below; and gradually reducing the injection of the CaCO3 desulfurizer into the hearth, and determining the flow of the CaCO3 desulfurizer injected into the hearth on the premise of meeting the environmental protection index of the sulfur content in the tail flue gas of the boiler.

The utility model relates to the technical field of carbon emission, in particular to air treatment equipment for reducing carbon emission, which comprises a filter box, a connecting cover is movably clamped at the top end of the filter box, an air outlet pipe is fixedly communicated with the top end of the connecting cover, an air inlet pipe is fixedly communicated with the bottom end of the filter box, and a motor is fixedly connected with the bottom end of the filter box. An output shaft at one end of the motor is fixedly sleeved with a transmission shaft, a limiting cover is movably clamped to the upper end of the transmission shaft, a rotating shaft is fixedly connected to the top end of the limiting cover, a plurality of connecting rings are fixedly connected to the outer wall of the rotating shaft, and connecting blocks are rotationally connected to the outer portions of the connecting rings. Compared with the prior art, the air flowing out of the air inlet pipe at the bottom end of the filtering box is driven by the flow guide fan to flow into the air outlet pipe at the top end of the filtering box, the air is helped to penetrate through the first filtering plates, the filtering effect of the air is guaranteed, the carbon content in the air is reduced, and the flow speed of the air is not affected.

The invention discloses a sintering method and system for grading carbon distribution. Comprising a batching unit, a mixing unit and a grading storage unit, the batching unit consists of a plurality of sintering batching bins and is used for preparing various sintering raw materials with different carbon contents in different time periods according to process requirements; the mixing unit at least comprises a primary mixing chamber and a secondary mixing chamber, raw materials are preliminarily mixed in the primary mixing chamber, so that various raw material components are preliminarily and uniformly distributed, and then the raw materials enter the secondary mixing chamber to be deeply mixed, so that the mixing uniformity of the raw materials is ensured; the graded storage unit comprises an unloader and a plurality of blending bins, the mixed materials are conveyed to the graded storage unit through a sealing-tape machine, the unloader unloads the materials to the corresponding blending bins, and graded storage of the materials with different carbon contents is achieved; wherein each blending bin is used for storing a material with one carbon content. According to the method, accurate carbon supply can be achieved in a graded carbon distribution mode, waste of carbon resources is reduced, sintering energy consumption is remarkably reduced, and the economical efficiency of sintering production is improved.