611 results about "Solid fuel" patented technology

The invention provides low-carbon fuel blending coupling combustion test equipment and method, and the equipment comprises a blending fuel feeding system which is used for blending solid-phase, liquid-phase and gas-phase low-carbon fuels with fossil solid fuels or other solid fuels in proportion; the one-dimensional combustion furnace is used for coupling combustion of the blended fuel; the flue gas treatment system is used for carrying out cooling, dust removal, desulfurization, denitration and carbon dioxide adsorption and trapping treatment on flue gas generated by coupling combustion; the control cabinet is used for controlling the stable and safe operation of the whole experiment platform; the low-carbon coupling combustion test system and method and the coupling combustion low-carbon technology have the beneficial effects that the coupling combustion condition that the actual boiler is internally mixed with low-carbon fuel is simulated by adopting a feeding and conveying mode of accurately controlling the blending combustion proportion, and the low-carbon coupling combustion test system and method and the coupling combustion low-carbon technology are formed; the device has multiple innovative functions of controlling the blending combustion ratio, efficiently coupling combustion, comprehensively purifying flue gas, adsorbing and trapping carbon dioxide, saving energy, reducing carbon and the like.

The invention relates to the technical field of sintering technology and environmental resources in the iron and steel industry, in particular to a method for recycling sintered waste activated carbon powder, which comprises the following steps: mixing waste activated carbon powder with a flux and iron ore concentrate to prepare small balls with different carbon contents; the method has the beneficial effects that the waste activated carbon is efficiently and fully utilized in the longitudinal sintering direction, and the purposes of reducing the consumption of sintering solid fuel, improving the sintering efficiency and improving the sintering quality are achieved. Heat required by effective mineralization of the upper portion and the edge of the sintering trolley is improved, the quality of sintered ore on the upper layer and the edge of the sintering trolley is improved, and finally the purpose of reducing production and operation cost is achieved.

The invention discloses a photovoltaic-driven IDC electric-cooling linkage method and device, and belongs to the technical field of IDC electric-cooling linkage, and the method comprises the following steps: S1, constructing a gravity energy storage structure; s2, the gravity object is lifted to the highest point of the gravity object channel through the gravity energy storage structure; s3, air at the bottom of the gravity object channel is compressed for the second time, and a thermal cracking reaction is carried out; s4, thermal cracking gas generated by the thermal cracking reaction is drained, and combustion products are discharged into a gas storage chamber; s5, the generated steam waste heat pushes a turbine in a turbine chamber to do work for power generation; and S6, domestic hot water and night heating hot water are prepared, convective heat exchange is conducted, the low-temperature reclaimed water obtained after heat exchange is heated into high-temperature steam in a cooler, the high-temperature steam enters a turbine to become high-temperature reclaimed water, and the high-temperature reclaimed water flows into a control center or a water storage pool. The organic matter compressed garbage is used as a gravity object for gravity energy storage, and heavy oil, solid fuel, adsorbents and other high-value products are produced in the gravity energy storage process.

The invention discloses a solid fuel environmental protection project online intelligent early warning system based on big data, relates to the technical field of data processing, and solves the problem that it is difficult to establish a solid fuel environmental protection project database and store monitoring data; a temperature pollutant diffusion correlation model is difficult to establish, and the pollutant discharge rate and the pollutant diffusion influence range are analyzed; the influence degree of the solid fuel on environment sensitive areas, soil and underground water is difficult to evaluate; and an environmental protection risk assessment index is difficult to comprehensively assess and three-level early warning is difficult to establish according to the above technical problems. According to the invention, the monitoring and early warning of the solid fuel environmental protection project are realized by comprehensively evaluating the environmental protection risk evaluation indexes of the solid fuel to atmosphere, soil, underground water and environmental sensitive areas in each link.

The invention relates to the technical field of steel sintering processes, in particular to a biomass gasification coupling system for a steel sintering process, which comprises a biomass gasification system, a circular cooler waste heat utilization system and a waste heat power generation system, the biomass gasification system comprises a biomass drying system, a raw material conveying belt system, a biomass gasification furnace, a biomass gas heat insulation combustion chamber, a sintered coke powder preparation system and a biomass gas purification system, and the biomass drying system is used for drying biomass raw materials; and the dried biomass raw materials are conveyed to the biomass gasification furnace through the raw material conveying belt system. According to the coupling system for biomass gasification for the steel sintering process and the control method, biomass serves as zero-carbon energy, and biomass charcoal obtained after biomass gasification can replace part of solid fuel to achieve the carbon reduction effect. Meanwhile, the biomass gasified gas can replace a part of coal gas, and the carbon reduction effect can also be achieved.

This solid fuel comprises: a biocoke of at least 85% fixed carbon on the anhydrous ash-free basis; and an inorganic binder containing CaO in a dry state at 50 mass% or higher. This method for producing a solid fuel comprises a step in which a solid fuel is obtained by kneading and molding a molding starting material comprising: a biocoke of at least 85% fixed carbon on the anhydrous ash-free basis; an inorganic binder containing CaO in a dry state at 50 mass% or higher; and water.

The invention relates to the technical field of solid fuel cells, and discloses a porous gradient anode supported solid fuel cell impedance optimization method which is applied to a system comprising a plurality of porous gradient anode impedance sensors and an optimization controller. The method comprises the steps that a sensor collects voltage and current data to generate an impedance state data set; the optimization controller constructs a regional impedance state matrix, extracts features through processing, performs impedance distribution prediction in combination with a potential gradient and the like, outputs spatial and temporal distribution features through an impedance optimization model, and updates a data set; and dynamically optimizing regional electrode parameters according to the distribution characteristics, including voltage adjustment, current aggregation, resistance distribution and other operations. According to the method, through multi-sensor distributed acquisition, multi-dimensional feature analysis and dynamic modeling, accurate prediction and parameter dynamic regulation and control of electrode impedance spatial and temporal distribution are realized, the performance and stability of the solid fuel cell are improved, and the method is suitable for the field of solid fuel cell management.

The invention relates to a circulating fluidized bed boiler system, comprising: a main circulating fluidized bed boiler comprising a main hearth, a main separator, a main return feeder and a flue; the activation and modification device comprises a coal slime inlet and a gas-solid fuel outlet, the coal slime is suitable for being at least partially gasified and combusted in the activation and modification device to form gas-solid fuel flowing out of the gas-solid fuel outlet, and the gas-solid fuel outlet is communicated with a fuel nozzle arranged in the main hearth. The invention further relates to a coal slime activating treatment method which comprises the following steps: at least part of coal slime is gasified and combusted in the activating and modifying device to generate gas-solid fuel; and gas-solid fuel is led to the middle lower part of the hearth of the circulating fluidized bed boiler. The scheme can be used for flexible peak regulation of the boiler.

The present invention relates to the technical field of municipal sludge and industrial sludge treatment methods. Disclosed is a hydrothermal carbonization-based method for comprehensively treating iron-containing sludge and straw, comprising the following steps: 1) crushing and sieving straw, primarily dehydrating iron-containing sludge, and adding a catalyst for catalytic wet oxidation treatment; 2) adding wet-oxidized iron-containing sludge and a crushed and sieved fiber to a raw material storage tank and adding a dehydrating agent for dehydration treatment; 3) preheating a raw material conveying tank and then feeding the material into a reactor for a hydrothermal carbonization reaction; 4) collecting the resulting biochar slurry to a collecting tank for cooling; and 5) adding an appropriate amount of pulverized coal to the material and then carrying out plate press dehydration, or directly carrying out plate press dehydration, the material being used as a solid fuel. The present invention integrates two techniques, i.e., anaerobic digestion and hydrothermal carbonization, for sludge treatment, and the process is optimized from material and energy balance perspectives, so that the solid fuel and biochar substances are generated while sludge reduction is realized; moreover, the operation cost of the process is reduced, and the generated hydrothermal carbon can be either returned to the field for use or be used as an additive to promote anaerobic digestion, and also exhibits magnetism and can be recycled.

An oven 310 comprises an oven chamber 370, a port 350 for a demountable heated air source at a rear of the oven, and a flue 330 from the oven chamber. A first heated air source comprising a gas burner (380, figure 5B) and a variable air inlet 346 for use with a second heated air source which comprises a solid fuel carrier 340 may each be demountably receivable by the port, where only the variable air inlet or the first heated air source can be received by the port at the same time. An air flow director 374 may have an upper portion extending downwards, a rear surface that faces the rear of the oven, and a lower portion which directs air flowing down the rear surface more rearwardly, where the air flow director deflects heated air away from the flue and downwards towards the cooking surface. The flue may comprise a valve configured such that, when in a closed position, an open cross-sectional area of the flue through which air can flow out of the oven is at least 25% of the open cross-sectional area of the flue when the valve is in an open position.

The invention discloses multi-component composite doped zirconium oxide powder for a solid fuel cell and a preparation method of the multi-component composite doped zirconium oxide powder, and belongs to the technical field of solid fuel cells. The process comprises the following steps: mixing zirconium oxychloride with a stabilizer soluble salt and a composite additive, adding water, heating and hydrolyzing to obtain a mixed solution, continuously stirring, adjusting the pH value, filtering, cleaning and drying to obtain mixed powder A; zirconium oxychloride, carbon nanotubes and an organic framework are mixed and modified, a modified mixture, yttrium oxide, calcium oxide and magnesium oxide are mixed and ground, and mixed powder B is obtained; and grinding and mixing the mixed powder A and the mixed powder B, and carrying out two-step calcination to obtain the multi-component composite doped nano zirconium oxide powder. The nano zirconium oxide powder disclosed by the invention has relatively high oxygen ion conductivity, can keep excellent stability in a high-temperature environment, meets the high-performance requirements of various solid fuel cell electrolytes, and has good market competitiveness.

The invention discloses industrial solid waste treatment and resource utilization, and particularly relates to a washing-free sintering resource treatment method for household garbage incineration fly ash. Fly ash which is not washed with water, a silicon-aluminum hardening and tempering agent and solid fuel are mixed according to a specific proportion, granulated and sintered, and dioxin control and heavy metal directional migration are achieved through the temperature gradient of a material layer. According to the invention, low-temperature (1t, 150 DEG C) and low-pollution flue gas is shunted for common purification according to the temperature and component difference of flue gas at each sintering section, and dust (product dust) is returned for utilization; high-temperature (more than or equal to 150 DEG C) and high-pollution flue gas is divided for quenching and activated carbon deep purification, and dust (heavy metal concentrated ash) of the flue gas is sold for metallurgy. According to the invention, the fly ash washing link is thoroughly omitted, and the consumption of the adsorbent and the operation cost are greatly reduced while ultra-low emission is ensured through a flue gas quality-dividing and flow-dividing technology, so that low-cost, thorough harmlessness and high-value recycling of the fly ash are realized.

The invention discloses a low-alkalinity sintering control method and a low-alkalinity sintering control system. The method comprises the following steps: measuring liquid phase fluidity indexes and binding phase strength indexes of various iron ore powder on a production site; the iron ore powder with the high comprehensive score, fuel, flux and return mine are mixed and granulated, a mixture with the high alkalinity is formed, the iron ore powder with the low comprehensive score and a binder are mixed and granulated, and a base material with the natural alkalinity is formed; and mixing the matrix material and the mixture according to a certain proportion to form a sintered material with alkalinity lower than 1.8, and distributing, igniting and sintering the sintered material. A high-alkalinity mixture with liquid phase fluidity and binding phase strength is adopted to wrap a low-alkalinity matrix material bonded by a solid phase to form a high-strength sintered material, the alkalinity of the sintered material is lower than that of a traditional sintered material, the solid fuel consumption is low, and the yield of the sintered ore is improved.

Internal combustion engines, including engines producing power from solid or slow burning fuel(s), such as biological-based or petroleum-based fuels, wood, corn, biomass, coal, and waste products, and / or possibly other liquid or gaseous fluids, as well as methods for operating or implementing such engines, are disclosed herein. In an example embodiment, the engine includes a crankshaft, a piston, a cylinder having an internal cavity and several ports, and an assembly having a chamber having a first region within which solid fuel can be situated and combusted. The assembly further includes a diverter valve so that, depending upon a setting of the valve and during engine operation, first and second amounts of compressed air respectively proceed to the first region and to bypass the first region, and a combination of combustion products and the second amount proceeds via one of the ports to the part of the internal cavity.

The invention provides a method for preparing carbon fuel from corn straw based on a functional composite binder, and belongs to the technical field of biomass solid fuel preparation. The preparation method comprises the following steps: uniformly mixing corn stalk charcoal powder with a functional composite binder to obtain a mixture, and then carrying out hot-pressing activation molding to obtain the corn stalk charcoal fuel. The functional composite binder comprises the following raw materials: phosphoric acid, polysilicic acid, polyethylene and sodium lignin sulfonate; the addition amount of the functional composite binder in the corn stalk carbon powder is 10-15 wt.%. According to the method, the controllability of the quality of the raw material carbon is greatly improved, the functional composite binder is adopted, the forming density, falling and breaking resistance and durability of the carbon fuel are improved, the process stability and repeatability are high, and a foundation is laid for large-scale production.

The invention discloses a high-aluminum limonite and specularite ore blending and sintering method which comprises the following steps: 1) preparing primary pre-blending powder: pre-blending high-aluminum limonite, specularite concentrate powder, iron oxide scale, limestone powder and anthracite powder to prepare the primary pre-blending powder with the water content of 6.5-7%; (2) preparing a uniformly mixed material: blending the primary pre-blended material powder obtained in the step (1) with high-silicon iron ore powder and hematite and limonite powder to prepare the uniformly mixed material; 3) sintering and burdening: burdening the uniformly mixed material obtained in the step 2) with limestone, dolomite powder, quicklime, solid fuel and return mine, and 4) controlling the components of the sintered ore as follows: 2.3-2.5% of Al2O3, 5.7-6.5% of SiO2, 8-8.5% of FeO and 1.85-2.5% of MgO. According to the invention, while 20-30% of the proportion of the discount ore silk road powder in the total uniformly mixed material is increased, the sintering cost is reduced by 20-42 yuan / ton, the drum strength of the sintered ore is greater than or equal to 78.5%, the return mine rate is less than or equal to 27%, and the RDI + 3.15 mm is greater than or equal to 63%.

The present invention provides a composite gasification device based on a filtration combustion mode, belonging to the technical field of solid fuel gasification for producing synthesis gas. It solves the problems of low carbon conversion efficiency, high tar content, and low synthesis gas yield. It includes a gasifying agent inlet, a preheating section, a reaction section, a reforming section, a synthesis gas outlet, and a discharging section. The gasifying agent inlet is communicated with the preheating section. Both ends of the reaction section are respectively communicated with the preheating section and the reforming section. The synthesis gas outlet is communicated with the reforming section. The discharging section is communicated with the reaction section. Both the preheating section and the reforming section are composed of various forms of inert porous medium fillers. The internal of the porous medium packed bed has complex pore channels, which is beneficial to mass transfer and heat transfer. The porous medium can be composed of inert particles such as ceramsite or glass microspheres and similar substances, wire meshes, and foam ceramics, etc. It is mainly used for the efficient gasification of various solid fuels.

An autothermal process of concentric bubbling fluid double bed for the production of syngas by gasification with biomass steam, in the presence of a granular material includes: continuous gasification under stationary bed condition of said granular material in bubbling fluidisation regime of biomass with water vapour with thermochemical transformation of the fuel into raw syngas and char, the raw syngas including heavy hydrocarbons in the steam state and any harmful compounds in traces, in a first reaction volume; combustion in bubbling fluidised bed with air of the char and of auxiliary fuel in a second reaction volume; the transfer velocity of the granular material between the first and second reaction volumes being such that the thermal difference does not exceed 20° C.; separation from the raw syngas by hot filters; and elimination of any harmful compounds in traces.

The invention discloses a direct carbon emission determination method for mixed combustion of fossil fuel and biomass fuel, and relates to the technical field of carbon emission, the method comprises the following steps: determining a mixed combustion mode; the multi-fuel combustion mode comprises solid and solid fuel multi-fuel combustion, solid and liquid fuel multi-fuel combustion, solid and gas fuel multi-fuel combustion, liquid and liquid fuel multi-fuel combustion, liquid and gas fuel multi-fuel combustion and gas and gas fuel multi-fuel combustion; based on the multi-fuel combustion mode, fuel consumption and an emission factor of fuel combustion are obtained, and based on the fuel consumption and the emission factor of fuel combustion, direct carbon emission is obtained through calculation; or the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient are obtained, and the direct carbon emission is calculated based on the flue gas amount, the volume fraction of CO2 in the dry smoke and the multifuel combustion conversion coefficient. According to the method, carbon emission generated by combustion of the biomass fuel can be distinguished, and the carbon reduction effect of the co-combustion biomass fuel can be reasonably and accurately evaluated.

The invention relates to the technical field of sintering production, in particular to a super-thick bed sintering method for improving metallurgical performance of sintered ore. The method specifically comprises the following steps: S1, preparing a sintering enhancer; s2, preparing a mixture A; s3, preparing cold bonded pellets; s4, preparing a sintered material; s5, layered material distribution; s6, ignition, air draft and sintering; according to the method, by means of layered material distribution, the cold-bonded pellets with the oxygen self-production function and different proportions are added into each layer of sintering material, the pellets contain substances capable of being decomposed and releasing oxygen, the oxygen is released through the internal substances, and the oxygen deficit problem of the bottom material layer of super-thick material layer sintering is solved; the heat distribution of each layer of sintering material is balanced, the problem of'automatic heat storage 'of super-thick material layer sintering is solved, the metallurgical performance of sintered ore can be greatly improved, the sintering production efficiency is improved, and the sintering solid fuel consumption is reduced.

The invention discloses a coal gangue-based solid fuel which comprises pulverized coal, coal gangue particles, a binder, a combustion improver and a sulfur-fixing agent. After the combustion improver prepared by the method disclosed by the invention is added into the solid fuel, the ignition point of the fuel can be obviously reduced, the flammability index of the fuel is improved, and the combustion performance of the solid fuel is greatly improved.

A heating system that combusts solid fuel includes a firepot configured to hold the fuel to be combusted therein. The heating system also includes a contactless ignition system including a heating element configured to generate heat sufficient to combust the fuel within the firepot, and an element housing interfaced with the firepot. The element housing is configured to at least partially surround the heating element to prevent the heating element from contacting the fuel within the firepot.

The invention provides a method for recovering liquid-phase phosphorus and preparing solid fuel through co-hydro-thermal treatment of fish mud and PVC, and provides an optimized hydro-thermal reaction process aiming at the problems that the recovery rate of the liquid-phase phosphorus is low and the performance of hydro-thermal carbon fuel is poor in the hydro-thermal treatment process of the fish mud (namely aquaculture bottom mud). The method specifically comprises the following steps: (1) pretreating fish paste; (2) mixing the treated fish paste and polyvinyl chloride (PVC) according to a certain proportion; and (3) carrying out hydrothermal carbonization treatment on the mixture obtained in the step (2). And (4) carrying out solid-liquid separation on the carbonized product in the step (3). And (5) a liquid-phase product can be directly used for phosphorus recovery. And (6) the solid-phase product can be used as solid fuel. The method has the advantages of being easy and convenient to operate, high in resource utilization rate, environmentally friendly and the like, and is suitable for efficient treatment and energy utilization of organic waste.

The utility model provides a clamping mechanism for solid fuel shaping. The clamping mechanism comprises a first clamp, a second clamp, a clamping jaw unit and a feeding adjusting unit. The first clamp is fixed to the power end of the machine tool. The second clamp is connected with the first clamp, so that the clamped part is clamped between the first clamp and the second clamp; the clamping jaw unit is used for clamping and supporting the solid fuel; the feeding adjusting unit is used for adjusting the position of the clamping jaw unit so that the clamping jaw unit can accurately clamp the solid fuel and move the solid fuel to the power end of the machine tool to be fixed. In the application, the to-be-processed end of the solid fuel is used as the clamping end, so that the influence on the processing precision caused by the decentraction of the head and the tail of the solid fuel can be reduced; the clamped part is clamped through the cooperation of the first clamp and the second clamp, it can be ensured that the solid fuel cannot axially move in the machining process, the clamping jaw unit conducts auxiliary supporting from the middle or a non-machining area of the solid fuel, and the clamping stability is further improved.

A firepot for a grilling device comprises one or more walls at least partially forming an outer boundary of the firepot. The firepot is structurally configured to hold at least partially ignited solid fuel. The firepot also comprises a floor defining, at least in part, a lower end of the firepot. The floor comprises one or more holes extending through the floor. Additionally, a portion of the one or more walls form a solid fuel delivery opening that comprises a solid fuel portal through which solid fuel is deliverable to an interior of the firepot. A heating element mount is positioned to hold a heating element within the interior of the firepot.

The invention discloses a preparation method of a size-controllable high-purity ZIF-8 material, which comprises the following steps: 1) respectively dissolving an amine-containing organic ligand and a zinc salt in an alcohol solvent at room temperature to prepare a mixed solution of the amine-containing organic ligand and the zinc salt; 2) adding a deprotonation reagent and a template agent, stirring at low temperature for reaction, standing for aging, centrifugally collecting milk white precipitate, washing and drying to obtain a ZIF-8 precursor material; and 3) carrying out gradient calcination on the obtained ZIF-8 precursor material in an inert atmosphere to obtain high-purity ZIF-8 materials with different sizes. The ZIF-8 material is high in purity, controllable in size, rich in amino groups, good in heat stability and high in adsorption performance, low-temperature effective adsorption and fixation of chlorine elements can be achieved, the content of Cl pollutants in PVC pyrolysis products is effectively reduced, clean and high-quality high-value liquid and solid fuel products are obtained, and follow-up harmless utilization is promoted.

The invention relates to the technical field of solid fuel cells, and discloses a solid fuel cell tail gas heat energy cascade recycling system which comprises a tail gas component analysis module, a heat exchange topology construction module, a phase change heat storage control module, a residual pressure power generation adaptation module, a cascade scheduling decision module and a recycling efficiency monitoring module. The tail gas component analysis module generates a component concentration distribution map through mass spectrometry detection; the heat exchange topology construction module establishes a multi-stage heat exchanger network according to the atlas and optimizes parameters; the phase change heat storage control module deploys a phase change material array, divides a temperature control area and generates heat storage data; the excess pressure power generation adaptation module collects pressure signals and fits turbine characteristics to generate power generation parameters; the cascade scheduling decision module constructs a model through a dynamic programming algorithm and generates a scheduling instruction; and the reuse efficiency monitoring module tracks the state in real time and corrects parameters. The system realizes stepped recovery of tail gas heat energy, pressure energy and combustible components, improves energy efficiency and stability, and is suitable for solid fuel cell tail gas treatment.

The invention discloses a method for predicting combustion emission of solid fuel at different altitudes, belongs to the field of environmental science and air pollution control, and is particularly suitable for different altitudes. The method comprises the following steps: firstly, collecting combustion emission data of different solid fuels; cleaning and standardizing the data; analyzing key factors, and extracting effective features; then selecting a random forest algorithm to construct a model; carrying out model training and parameter optimization; using a test set to verify the prediction performance and generalization ability of the model, and selecting an optimal parameter; and finally, using the trained model to realize rapid and accurate prediction of solid fuel combustion emission at different altitudes. According to the invention, machine learning is applied to the field of solid fuel combustion emission prediction, especially for complex conditions at different altitudes, accurate prediction of solid fuel combustion emission is realized, and a brand new path is opened up for environmental protection and sustainable utilization of energy.

The invention relates to the field of biomass fuel preparation, in particular to a crosslinking modified biomass solid fuel and a preparation method thereof. According to the preparation method of the cross-linked modified biomass solid fuel, through combination of physical and chemical pretreatment and cross-linked modification, the calorific value and combustion performance of the biomass fuel are remarkably improved, emission of harmful gas is reduced, and the good environment-friendly effect is achieved. The method is simple and easy to implement, is suitable for large-scale production, can be widely applied to the fields of energy, environmental protection, agriculture and the like, and has important market application prospects.

An infused solid polymeric fuel for use in a hybrid rocket or as explosive ordnance. An infused solid polymeric fuel can include a porous polymeric body having continuous pores distributed throughout a volume of the polymeric body and connecting to an external surface of the polymeric body. A combustion enhancement agent can be infused into the polymeric body. The combustion enhancement agent can be deposited on interior surfaces of the pores and on the external surface of the polymeric body. The combustion enhancement agent can include a catalyst, an oxidizer, a hypergolic fuel, or a combination.