1037results about How to "Realize rational utilization" patented technology

The invention relates to a soil-improving bio-fertilizer and a preparation method thereof. The soil-improving bio-fertilizer is prepared by mixing the following raw materials in parts by weight: 200-400 parts of grass carbon, 200-400 parts of an organic fertilizer, 100-400 parts of an inorganic fertilizer, 50-200 parts of a porous inorganic matter, 10-30 parts of trace elements, 50-80 parts of clay and 10-20 parts of a compound microbial agent. A plurality of microorganisms with the functions of fixing nitrogen, solubilizing phosphate and solubilizing potassium are added into the fertilizer, so that the nitrogen content of soil can be increased, the utilization ratio of a chemical fertilizer is increased, the soil structure is improved, the crop yield is increased, and the crop quality is enhanced.

The invention discloses an in-site heating regeneration maintenance vehicle for asphalt pavements, comprising an automatic running type vehicle body, an asphalt pavement heating device for heating an asphalt pavement to melting state, a pavement planing-milling device for spiking up the molten asphalt pavement, an asphalt mixing device for mixing asphalt and additives to repair a pavement, an asphalt spreading device for spreading the mixed new asphalt material on the spiked pavement and a pavement compacting device for leveling and compacting the spread pavement, wherein the asphalt pavement heating device, the pavement planing-milling device, the asphalt mixing device, the asphalt spreading device and the pavement compacting device are sequentially arranged on the automatic running type vehicle body from front to back. The in-site heating regeneration maintenance vehicle for asphalt pavements can continuously complete the multiple operations of heating, spiking up, re-spreading, leveling and compaction, hydraulic transmission is adopted for a transmission device of the entire vehicle, the space can be reasonably utilized, the structure is simplified, the entire reliability of the device is beneficially guaranteed, and the field use cost is saved.

The invention discloses a hydrogen production system by utilizing thermochemical reaction thermally driven by solar energy under medium-lower temperature, which comprises a material supplying device for storing materials required for producing hydrogen, a material mixing device for mixing raw materials and non-reactants, a material measuring device for controlling the volume of raw materials sent into a preheater per unit time, the preheater for preheating raw materials, a solar energy absorption reactor for driving raw material to carry out reforming reaction by utilizing absorbed solar energy heat, a solar energy collector for aggregating solar energy with low energy flow density into medium-lower temperature heat energy with high energy flow density in a form of line focus so as to provide heat for material reforming reaction, a condenser for cooling reaction products, a gas-liquid separator for separating gas and liquid of a mixture, and a PSA (pressure swing adsorption)device for separating the obtained pure hydrogen. The invention also discloses a method for producing hydrogen by utilizing thermochemical reaction thermally driven by solar energy under medium-lower temperature. The system and the method of the invention reduce the cost of producing hydrogen by utilizing solar energy and are beneficial to mass popularization and application.

The invention discloses a toluene liquid-phase selective oxidation catalyst and a preparation method thereof. The catalyst is transition metal or rare earth vanadate which has the composition shown by MexVyO, wherein Me is one of transition metals of VIB, VIIB or VIIIB group; V is vanadium; and the molar ratio x / y of Me to V is 0.1 to 10. The catalyst provided by the invention can be used for toluene liquid-phase oxidation reaction, the conversion rate of the toluene is high and the main product is benzaldehyde; by changing the composition and modulating reaction conditions of the catalyst, the proportion of the benzaldehyde to benzoic acid in the product can be changed; the catalyst does not pollute equipment and environment; and a solved used in the reaction can be recovered and rational resource utilization is basically realized.

The discarded Chinese medicinal material residue produced from production of Chinese patent drug Mailuoning is used and producing steps are: coarse pulverizing, adding dried Chinese medicine residue to regulate water content, then adding cellulolytic bacteria to make stacked fermentation, sieving, finally adding regulator A and B according to a certain ratio to obtain a matrix. Finally, in the said matrix a certain quantity of seedling fertilizer and feishite can be added. Said invention also provides its application method and its advantages.

The invention discloses a maximum power tracking type wind power generation device with an energy predicting function and a method thereof, which belong to the field of wind power generation energy conversion, and solve the problems that a low-power wind power generation device and a power generation method delay system control and cannot predict and control the charging current of a storage battery. The device comprises a blade, a low-speed permanent magnet synchronous generator, a PWM rectification charging power module, an electric energy storage module, a main controller module, a current detection module, a busbar voltage detection module, a mechanism brake, a brake signal module, an off-course signal generating module, a generator rotating speed detection module, a wind speed and wind direction difference receiving module, an off-course step motor and an anemoclinograph. The power generation method of the device comprises the following steps of: adjusting the blade according to wind speed signals; controlling the low-speed permanent magnet synchronous generator to realize the tracking of the maximum power; and controlling the PWM rectification charging power module to realize the output of unit power factors of the low-speed permanent magnet synchronous generator. The device and the method are used for wind power generation.

The invention relates to a compound microbial fertilizer and a preparation method thereof. The compound microbial fertilizer is prepared by mixing the following raw materials: yeast fermentation powder residues, an organic fertilizer, urea, K2SO4, NH4H2PO4, clay and a compound microbial agent; and the compound microbial agent is formed by fermentation of bacillus mucilaginosus, bacillus megaterium, bacillus cereus, bacillus thuringiensis, azotobacter chroococcum, pichia farinose and streptomyces microflavus. The compound microbial fertilizer disclosed by the invention has a variety of microbes with the effects of nitrogen fixation, phosphorus dissolution and potassium dissolution, can increase the nitrogen content in soil, improves the utilization rate of the chemical fertilizer, and is favorable for improving the structure of the soil and improving the yield and quality of crops; and simultaneously, the microbes in the fertilizer can produce a variety of metabolites, and the metabolites can effectively resist diseases and insect pests.

The present invention discloses a regional complex distribution network dispatch control management system based on a virtual power plant, and belongs to the technical field of dispatch control management. Aiming at the problem that distribution network control becomes increasingly complex due to increasing complexity of the structure in a distribution network, sharply increased number of dispersed and distributed power supplies, increasingly growing capacity / power ratio and complex and varied regional distribution networks, the regional complex distribution network dispatch control managementsystem based on a virtual power plant is developed. The system mainly includes the construction of different types of virtual power plants and a big data cloud computing platform at a regional leveldistribution network dispatch center. By developing the dispatch control management system for a regional power grid, a complex distribution network can be connected in the form of a virtual power plant for unified coordination and optimization management, and the system is a new type of complex distribution network management mode. The regional complex distribution network dispatch control management system can be widely applied to distributed new energy-rich areas, and is of practical significance for developing virtual power plants, developing renewable green energy and achieving energy transformation.

The invention discloses a preparation method and application of an environment-friendly economic luminescent carbon quantum dot. The method disclosed by the invention mainly comprises the following steps of: with bagasse as a carbon source material, adding the bagasse into a mineralizer aqueous solution, and heating by using a hydro-thermal synthesis reaction kettle in a muffle furnace at the temperature of 180 DEG C for 4h; centrifuging a brownish black reaction liquid at a high speed, and then, collecting a supernatant for dialyzing; collecting the reaction liquid in a dialysis bag, cooling the reaction liquid, and then, transferring the reaction liquid into a freezer drier for freeze-drying to finally obtain a powdery carbon quantum dot. The preparation method disclosed by the invention has the characteristics of simplicity, convenience and rapidness in operation as well as simplicity in preparation process and equipment; and the environment-friendly economic luminescent carbon quantum dot is made of daily wastes as raw materials and is low in cost, environment-friendly and easy to popularize. The carbon quantum dot prepared by the invention has the excellent characteristics of favorable dispersibility, water solubility, fluorescent stability, biocompatibility and the like, and is successfully applied to living cell imaging and marking.

The invention relates to fermentation waste vegetables feed and a preparation method. The fermentation waste vegetables feed consists of mixed raw materials and microorganism living bacteria liquid, wherein the mixed raw materials consist of vegetable waste materials, straw and corn powder; and each ton of the mixed raw materials are formed according to the weight ratio (w / w): 70 to 80 percent of waste vegetables, 20 to 25 percent of straw, and 4 to 6 percent of corn powder. Each ton of the mixed raw materials are added with 30 to 40 milliliters of the microorganism living bacteria liquid, and the content of living bacteria for the microorganism living bacteria liquid is between 1.0x10<9>cfu / mL and 1.0x10<11>cfu / mL. The fermentation waste vegetables feed and the preparation method have the advantages of reasonable formulation, scientific production method, wide applicable areas, simple operation, easy master, low cost, reasonable formula design, convenient production, suitability for broad peasant households and livestock breeding plants, safe and no toxity, and great adaptability to fermentation conditions, and can be used as feed of cows, sheep, geese, and so on, make full use of side products in agriculture industry, realize reasonable use of the resources, and provide new techniques for clean and sustainable agricultural industry.

The invention discloses a car-taking method and system based on mobile terminals. The method comprises the following steps: a car owner moving terminal receives car owner personal information, a car running route and setting information about the demand condition of a passenger; a passenger moving terminal receives passenger personal information, a car-taking route and setting information about the demand condition of a car owner; a server screens out the passenger information meeting the requirements that the passenger position is in a certain range of the car owner position and the passenger personal information accords with the demand condition of the car owner on the passenger, and screens out the car owner information meeting the requirements that the passenger position is in a certain range of the car owner information and the car owner personal information accords with the demand condition of the passenger on the car owner; the car owner moving terminal loads a map, so that the position information of retrieved passenger information shows on the map; the car owner moving terminal obtains the instant message of a car-taking request inputted by the car owner, and the passenger moving terminal obtains instant message whether to agree the car-taking request inputted by the passenger. By adopting the car-taking method and system based on the mobile terminals, reasonable use of free spaces of private cars can be achieved.

The invention provides a set-retarding type long-distance pumping type concrete prepared by waste slag of subway projects and application, and belongs to the field of concrete. The prepared concrete has the advantages that the density and fluidity are good, the extension and strength are high, the production cost is low, and the concrete is suitable for long-distance pumping. The set-retarding type long-distance pumping type concrete prepared by the waste slag of the subway projects comprises the following components in parts by weight: 260 to 300 parts of cement, 151 parts of water, 990 to 1010 parts of stone, 700 to 720 parts of stone chips, 50 to 80 parts of stone powder, 80 to 105 parts of ore powder, 85 to 100 parts of fly ash, 4.9 to 4.95 parts of set-retarding type polycarboxylate superplasticizer, 0.049 to 0.0495 part of starch ether, and 0.098 to 0.099 part of building glue 1093.

A hydrogen production by methanol system includes a methanol supplying device, a water supplying device and a hydrogen production by methanol device. The methanol supplying device and the water supplying device communicate with an inlet of the hydrogen production by methanol device including a hydrogen production activator, a selective oxidation reactor of carbon monoxide and an oxidative gas supplying device. An outlet of the hydrogen production by methanol device and the oxidative gas supplying device both communicate with the inlet of the selective oxidation reactor of carbon monoxide including a selective oxidation activator of carbon monoxide which comprises the alloy of a platinum or the platinum and a palladium andor a rhodium. The hydrogen production by methanol system provided bythe present invention can produce the mixed gas of hydrogen, in which the concentration of the carbon monoxide is less than 50 parts per million and does not cause an oxidation or a blast of the hydrogen.

The invention discloses an intelligent bus scheduling calculation method, which comprises the following steps of: constructing a math model of a genetic algorithm; and then designing specific solution steps of the genetic algorithm by the math model, wherein the termination condition of the algorithm is that a genetic algebra Gen is equal to the set maximum genetic algebra. By the intelligent bus scheduling calculation method, the comprehensive benefit between a bus company and passengers can be comprehensively considered; and the shortcomings about solution for multi-target non-linear problems in the conventional bus scheduling algorithm are overcome.

The invention discloses a transmission method and a transmission device for an enhanced physical downlink control channel (ePDCCH). The transmission method includes the following steps: based on corresponding relationships between resource unit groups, which are obtained by dividing internal resources of a physical resource block (PRB) into a predetermined number, and an antenna port of the ePDCCH to be transmitted, the ePDCCH is mapped to the resource unit group corresponding to the antenna port; and the ePDCCH is transmitted after being mapped. Through the transmission method and the transmission device for the ePDCCH, the transmission performance of the ePDCCH is improved, and meanwhile, detection complexity of a receiving end is lowered.

A flight time resource configuration and optimization method suitable for airline hubs is disclosed. The flight time resource configuration and optimization method comprises the steps of calculating the quantity of first-type time resources; optimizing the first-type time resources; calculating the quantity of second-type time resources; optimizing the second-type time resources for the first time; performing primary real-time analog simulation and conflict regulation; optimizing the second-type time resources for the second time; and performing secondary real-time analog simulation and conflict regulation, and the like. The flight time resource configuration and optimization method can bring benefits for multiple sides and can realize the maximum of social benefit; for passengers, reasonable flight time can greatly reduce probability of flight delays, so that the passengers can enjoy the more good-quality air transportation service; for airports, the airline hubs can optimize the airport management systems, expand international market shares and improve the competitiveness of the airports; and for airlines, the airlines can establish and construct main center radiation type airline network, ensure the flight service quality and improve the reputation of the airlines consequently.

The invention relates to the technical fields of the solar thermal power generation and energy, in particular to a solar energy and methanol fuel chemical-looping combustion power generation system and method used for controlling CO2 emission. The intermediate-low temperature solar thermochemical process and the chemical-looping combustion power cycle are coupled organically to form the system ofthe invention. The system comprises a solar heat collecting-reduction reactor, a solar heat collecting-decomposition reactor, an oxidation reactor, an afterburning combustion chamber, a gas turbine, a steam turbine, an exhaust-heat boiler, a heat exchanger and the like. By using the device of the invention, the graded use of energy resources with different qualities can be realized; the zero-energy separation of CO2 can be realized through simple condensation; the combustion method can reduce the fuel grade to FeO grade, thus reducing the fuel loss in the combustion process and increasing theefficiency of the system; the solar thermochemical reaction is adopted to improve the grade of intermediate-low temperature solar energy; and afterburning is adopted so as to solve the problem that the gas turbine inlet has low initial temperature caused by the limit of the cycle material in the chemical-looping combustion power system.

The invention belongs to the technical field of building materials, and particularly relates to a modified coarse aggregate with improved performance, excellent-performance fiber nano recycled concrete prepared from the modified coarse aggregate and a preparation method of the fiber nano recycled concrete. The preparation method includes the following steps that waste concrete test blocks and waste sintered bricks are crushed and screened to obtain a recycled coarse aggregate, and the recycled coarse aggregate is dried after being soaked with a nano silica sol to obtain a modified concrete coarse aggregate and a modified brick coarse aggregate; water, cement, fine aggregate, the modified concrete coarse aggregate, the modified brick coarse aggregate and polyvinyl alcohol fiber are preparedin proportion; the modified brick coarse aggregate, the modified concrete coarse aggregate, the cement and the fine aggregate are put into a stirrer and pre-stirred, the polyvinyl alcohol fiber is evenly dispersed and added, and dry mixing is carried out; water and a water reducer are sequentially added into the stirrer and stirred until the mixture is evenly mixed. Construction waste is effectively utilized to prepare the recycled concrete with certain performance indexes.

The invention belongs to the technical field of acetylene sludge application and the technical field of production process of calcium hydroxide, in particular to a production process for preparing the calcium hydroxide by the acetylene sludge. The production process comprises the following steps that: the acetylene sludge material is subjected to screening, impurity removing and dehydrating, and is dried; and after the dried material is separated and collected, a finished product of the calcium hydroxide is prepared. Drying is separated into primary drying and secondary drying to be carried out in sequence. Furthermore, the temperature of the primary drying is between 50 and 150 DEG C, and time is between 10 and 40 hours; and the temperature of the secondary drying is between 200 and 600 DEG C, and time is between 1 and 5 seconds. The process has the advantages of simple production process, low production cost, changes waste into valuable, realizes reasonable utilization of wastes, and has wide market prospect and considerable economic benefit.

The invention provides a method for preparing natural gas by dry quenching co-production coal. In the method, reducing gas is taken as heat-carrying gas, refrigerant and a pyrolytic process thereof are adopted to recover a great quantity of sensible heat of high-temperature coke so as to couple the dry-method coke quenching process and the coal pyrolytic process of high-temperature metallurgical coke, thus cancelling a gas and air supply system, a combustion control system and a waste gas discharging system in the original pyrolytic process, avoiding pyrolytic combustion process, saving a great quantity of energy, and realizing smoke-free, NOX-free, SOX-free and CO2-free discharging. Meanwhile, gasification gas produced by pyrolytic gas and semi-coke gasification is used for producing andsynthetizing natural gas in a methanation manner so as to realize clean conversion of coal. In addition, the method cancels N2 preparation equipment and waste heat boiler systems in dry quenching, thus simplifying the operation and maintenance process and greatly lowering investment and operation cost.

The invention discloses a priority-based wireless resource scheduling method, comprising the following steps: dividing users into three priorities: high, medium and low; calculating a scheduling priority factor of each user, and achieving the scheduling priority ranking for the medium and low priority users according to the size of the scheduling priority factors; detecting whether the high priority user has the data to be sent at each TTI; if yes, preferentially distributing resource blocks (RBs) to the high priority user until the data of all high priority users is sent, and then entering the next step; if not, directly entering the next step; and if remaining RBs exist, distributing the remaining RBs to the medium and low priority users according to the scheduling priority ranking until all the RBs are completely distributed. According to the priority-based wireless resource scheduling method disclosed by the invention, on the basis of preferentially distributing resources to the high priority users, the priority ranking for the medium and low priority users can be achieved by calculating the priority factors, and thus reasonable utilization of the RBs can be achieved.

The invention relates to a method for reducing emission of CO2 by circulating fluidized bed temperature flue gas circulation oxygen combustion, which is a method for realizing CO2 emission reduction applied in a circulating fluidized bed boiler based on the technology of temperature flue gas circulating oxygen combustion. The method comprises the following steps: feeding fuel and desulfurater into the circulating fluidized bed boiler, taking the gas mixture of O2 and circulating flue gas as combustion agent, passing through the heating surface at the tail by the flue gas generated by combustion, heating O2 (concentration is 96.5%-98.5%) from an air separation unit, generating temperature flue gas at the temperature of 140-150 DEG C, taking the gas mixture composed of 30%-70% of the temperature flue gas and O2 as oxidant to delivery to a furnace for combustion, carrying out dedusting by a deduster, multi-level condensation and dehydration and compression on the residual flue gas (volume concentration of CO2 is larger than 95%), and realizing resource utilization or storing in a sealing manner. The circulating glue gas is rich in vapor, entrainment unburned carbon and active desulfurater; the method enhances radiant heat exchange in the furnace, solves the problem of insufficient amount of convection heat transfer, improves combustion efficiency and desulfuration efficiency of the furnace, and can realize near-zero emission of gas pollutant; besides, the method can also lower comprehensive power consumption of space division and CO2 compression, and improve generating efficiency.

The invention discloses a method and a device for the frequency allocation of a relay system, relating to wireless communication system and solving the problem that the current relay system fails to allocate frequency resources to relay stations reasonably. The allocation method according to the embodiment of the invention comprises the steps: determining a target relay station requiring resource allocation; allocating frequency resources to the target relay station according to the utilization condition of frequency resources in the relay system, wherein the frequency resources are used for the target relay station and terminals the target relay station serves. The device according to the embodiment of the invention comprises: a determination unit for determining the target relay station requiring resource allocation; an allocation unit for allocating frequency resources to the target relay station according to the utilization condition of frequency resources in the relay system, wherein the frequency resources are used for the target relay station and terminals the target relay station serves. The method and the system are mainly used in base stations of the relay system.

The invention discloses a virtual machine scheduling method applied to a cloud computing environment. The method comprises: 1) modeling of the virtual machine: pre-creating multiple virtual machines; 2) new task scheduling: searching for virtual machines with processing capabilities matched with tasks based on sizes of tasks among pre-created virtual machines; 3) processing of new tasks: processing tasks by searched virtual machines. The virtual machine scheduling method applied to the cloud computing environment has following beneficial effects: virtual machines can be matched with tasks so that reasonable utilization of cloud resources is achieved; and service quality of cloud computing is increased.

The invention discloses a garbage collection method based on a SSD-SMR mixed key value storage system. The garbage collection method comprises the following steps: dividing garbage collection operation into active garbage collection operation and passive garbage collection operation by adopting a two-stage threshold value according to an SSD or an idle space proportion in an SMR; when the SSD or the SMR needs to recycle the garbage, selecting a corresponding recycling block or a recycling belt according to the weight of the SSD or the SMR or the effective data proportion of the SSD or the SMR;Selecting a migration target of the effective data in the recovery block or the recovery belt according to the cold and hot judgment of the data in the garbage recovery process and the garbage recovery mode; when the data is hot data, migrating valid data into an SSD block, and when the data is cold data, migrating the data into an SMR band; and when garbage collection is completed, information in the recycling block or the recycling belt is updated, meanwhile, key value mapping table information is updated, and garbage collection is completed. According to the method, the system efficiency is improved, the system resource consumption is reduced, the system performance is comprehensively optimized and improved, and a new scheme is provided for constructing an economic and efficient storage system.

A rotary hearth furnace iron-making method utilizing biomass carbon-containing pellets to serve as a raw material belongs to the field of ferrous metallurgy and relates to a rotary hearth furnace iron-making process using the biomass to serve as iron-making fuel and a reducing agent. The process comprises the steps, utilizing reproducible carbon neutral biomass coke powder to replace pulverized coal, enabling the biomass coke powder and the iron ore powder to be matched with each other according to C / O=1.1-1.4, adding an appropriate binder, evenly mixing to make pellets, and enabling the pellets to enter a rotary hearth furnace to be heated and undergo reduction so that a metalized pellet is obtained. The biomass coke has carbon neutral and can fundamentally reduce discharge of pollutantssuch as CO2 caused by coal consumption. The impurity content of the biomass coke is little, the problem that sulphur content of products caused by coal using is too high is solved, and the comprehensive quality of the products is improved. The energy in the preparation process of the biomass coke can be supplied by biomass itself, and green circulating production is substantially achieved. The rotary hearth furnace iron-making method expands energy sources for rotary hearth furnace iron making, reduces production cost, improves product quality and production efficiency and reduces environmental pollution.

The invention discloses a two-stage high and low temperature liquid desiccant air-conditioning system driven by a heat pump and a controlling method. The two-stage high and low temperature liquid desiccant air-conditioning system driven by the heat pump is characterized by comprising a first level liquid desiccant regenerative circulating system, a second level liquid desiccant regenerative circulating system, a heat pump circulating system and a first draught fan, wherein the first level liquid desiccant regenerative circulating system comprises a first level dehumidifier and a first reproducer; the liquid outlet of the first level dehumidifier is communicated to the liquid inlet of the first reproducer, and the liquid outlet of the first reproducer is communicated to the liquid inlet of the first level dehumidifier, which constitute a first level liquid desiccant regenerative cycle; the second level liquid desiccant regenerative circulating system comprises a second level dehumidifier and a second reproducer; the liquid outlet of the second level dehumidifier is communicated to the liquid inlet of the second reproducer, and the liquid outlet of the second reproducer is communicated to the liquid inlet of the second level dehumidifier, which constitute a second level liquid desiccant regenerative cycle; the heat pump circulating system comprises a first condenser, a throttle valve, a compressor and an evaporimeter; the liquid outlet of the second reproducer is cooled through the evaporimeter and communicated to the liquid inlet of the second level dehumidifier.

The invention relates to the technical field of parking lot reservation parking, in particular to a parking lot reservation parking system. The system comprises a database, a cloud service platform, aparking lot management terminal and a client, wherein the client is used for a user to register the real name of a vehicle; the registration contents include vehicle owner identity information, vehicle information, contact information and emergency contact information; the cloud service platform, the parking lot management terminal and the client perform two-way access to each other, the access information is exchanged with the database information through a serial port and is stored in the cloud service platform, the cloud service platform can be an official account or an exclusive APP, theuser registers the vehicle information, the vehicle owner information, the contact information and the emergency contact information, the exclusive vehicle identity information is generated on the cloud service platform, and then the user can enjoy the reservation parking service, so that the management of parking lots can be facilitated, and the tracking of vehicles can also be achieved for special cases such as theft.

The invention discloses a preparation method of biomass iron coke for a blast furnace. The iron coke has the characteristics of high reactivity and high strength, and has a certain protective effect on original large blocks of coke, and meanwhile, the breathability of the blast furnace is maintained; the emission amount of CO2 can be reduced, and the production of the blast furnace can also be ensured; the iron coke prepared by the preparation method is low in energy consumption and low in investment; biomass coke is taken as a main raw material; the biomass coke is large in storage capacity and can be renewed, so that reasonable utilization of resources can be realized; the production cost is low; meanwhile, the problem that iron-making industry relies heavily on fossil energy is solved;according to the method, carbon-containing pellets can be produced, and dust, such as converter dust, blast furnace mash gas dust and sintering machine head dust, of an iron and steel plant can also be recycled; the production cost is reduced. The biomass components are superior to those of coal ash; clean production can be realized; energy conversation and emission reduction can be realized; low-sulphur low-phosphorus final products are obtained.