480 results about "Solid fuel" patented technology

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.

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 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%.

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.

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 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.

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.

The invention discloses a moving bed gasification furnace. Belongs to the technical field of solid fuel thermal conversion and combustion boilers, the moving bed gasifier comprises a hearth, a fire grate assembly and an air injection assembly, the hearth is provided with a feeding port, a discharging port and a gasified gas discharging port, the fire grate assembly is arranged below the hearth, and the hearth and the fire grate assembly jointly define a first chamber, a second chamber and a third chamber which are sequentially arranged; the feeding port is communicated with the first cavity, the discharging port and the gasified gas discharging port are both communicated with the third cavity, the second cavity is communicated with the first cavity and the third cavity, and the aperture ratio of ventilation holes of the fire grate assembly is gradually increased in the direction from the first cavity to the third cavity. And the hearth is provided with an air injection assembly for injecting flow-adjustable air into the synthesis gas flow of the third chamber, so that oxygen and temperature can be strictly controlled, high-efficiency and low-tar gasification of biomass fuel is realized, and the quality of gasified gas is favorably improved.

The utility model discloses a constant-temperature reaction kettle for producing and processing solid fuel, which comprises a kettle body, a limiting ring is arranged on the outer wall of the kettle body, a conveying pipe I is clamped on the outer side of the limiting ring, the conveying pipe is arranged around the kettle body, a water inlet valve and a water outlet valve are respectively arranged at the end parts of the conveying pipe, and a kettle cover is arranged at the top of the kettle body. And connecting plates are uniformly arranged on the surface of the kettle cover. According to the reaction kettle disclosed by the utility model, the first conveying pipes, the hollow cavity and the kettle body are arranged, the first conveying pipes are uniformly arranged on the outer side of the kettle body and are communicated with the first conveying pipes through the communicating pipes arranged in the connecting notches in a penetrating manner, so that liquid conveyed by the first conveying pipes can be integrally communicated with the hollow cavity, and liquid in the hollow cavity can be discharged outwards through the first conveying pipes; the heating block in the hollow cavity works to heat liquid such as heat conduction oil in the hollow cavity and then continuously heat materials in the kettle body on the inner side, and according to the requirement of the heating process, the liquid can be added into the hollow cavity through adjustment of the water inlet valve, so that the overall heating temperature is reduced.

To provide a solid fuel which does not solidify during heating and mixing, can be suitably prepared, and can sufficiently maintain its shape during combustion.SOLUTION: The solid fuel contains at least one compound (A) selected from the group consisting of a polyalkylene glycol having a ≤ 4 c alkylene group, an alkyl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group and an aryl ether of a (poly) alkylene glycol having a ≤ 4 c alkylene group.SELECTED DRAWING: None

The pressing device for biomass solid fuel processing comprises a workbench, a fixing frame is arranged on one side of the upper portion of the workbench, the upper portion of a supporting rod is fixedly connected with a fixing plate, a mounting plate is arranged on one side of the fixing plate, and a first hydraulic cylinder is arranged on the side, away from the fixing plate, of the mounting plate. The stroke end of the first hydraulic cylinder penetrates through the mounting plate and is fixedly connected with the material distribution groove, a plurality of punching grooves distributed in a matrix mode are formed in the position, located above the fixing frame, of the fixing plate, a third hydraulic cylinder is arranged in the middle of the lower end of the fixing frame, the stroke end of the third hydraulic cylinder is fixedly connected with a push plate, and push rods matched with the punching grooves are arranged above the push plate. The upper end of the push rod extends into the stamping groove and is fixedly connected with the push block. The pressing device is high in automation degree, biomass solid fuel can be automatically distributed, pressed, taken and collected, and the processing efficiency of the biomass solid fuel is effectively improved.

The application provides a photoresist waste liquid recycling device and process, by adding hydrochloric acid to the photoresist waste liquid in the acidification precipitation tank in the pretreatment module to adjust the pH value, the linear phenolic resin precipitation rate reaches more than 95%, and the linear phenolic resin can be used again to the production stage of the photoresist after centrifugal separation, a compound coagulant containing sulfide and polyaluminum chloride is added to the heavy metal capture tank in the pretreatment module, and the removal rate of heavy metal ions reaches 99.5%; then the photoresist fragments are separated by using an ultrafiltration device, and the diatomite modified by NaOH and polyetherimide is used for adsorption and decolorization, then two-stage vacuum distillation process is used to realize the recovery of high-purity solvents in the photoresist waste liquid, finally, the remaining residue is polymerized and cured by ultraviolet radiation, and the solid fuel with high heat value can also be prepared, so that the 'zero emission' and resource full recovery of the photoresist waste liquid are realized, and the treatment cost and environmental risk are significantly reduced.

The utility model discloses a biomass solid fuel particle cooling device which comprises a cooling box, and a conveying belt used for conveying biomass solid fuel particles is arranged in the cooling box. The inner cavity of the cooling box is provided with a blocking piece which prevents biomass solid fuel particles from falling off from the surface of the conveying belt and cools the particles on the edge of the conveying belt. Through the arrangement of the blocking piece, the air blower blows air into the hollow plate through the second communicating pipe and blows air out of the flow guide pipe at the bottom of the opposite side of the hollow plate; and meanwhile, the air outlet ends of the flow guide pipes incline downwards and point to the limiting plates on the corresponding sides, blown-out airflow can cool particles on the edge of the conveying belt, heat of the edge parts of the particles can be dissipated, the particles can be gathered to the middle of the conveying belt through the flowing direction and force of the airflow, the particles are matched with the limiting plates, and the particles are effectively prevented from falling off from the surface of the conveying belt.

The invention relates to the technical field of sintering flue gas circulation, and discloses a sintering machine flue gas circulation cascade adjusting, mixing and distributing control system which comprises a sintering machine provided with a sealing cover in the length direction, and the sealing cover is provided with a sintering initial stage section, a sintering middle stage section and a sintering later stage section; and the mixing and distributing mechanism is communicated with the sealing cover. The mixing and distributing mechanism is used for mixing circulating flue gas, annular cooling air and dust removal air of a shuttle type distributor in a preset proportion according to the oxygen demand quantity and the circulating flue gas demand quantity of the sintering initial stage, the sintering middle stage and the sintering later stage to form mixed flue gas, and the mixed flue gas is introduced into the sintering initial stage, the sintering middle stage and the sintering later stage; the utilization rate of waste heat and oxygen in circulating flue gas is greatly increased, so that the whole sintering machine meets the normal production requirement under the working condition that the average oxygen content is lower than 18%, the flue gas circulation rate is increased, and the solid fuel consumption and the CO content are reduced.

The present application provides a kind of shale gas reservoir methane combustion fracturing structure, it includes: stabilizing component, conveying component and packer component, stabilizing component is made of wellbore casing, and bottom packer and top packer are respectively fixedly installed in the inside of both ends of wellbore casing, conveying component is made of sucker rod string, and jet mechanism is fixedly installed in the inside of sucker rod string, packer component is fixedly installed to the inner wall of wellbore casing, and guide column is arranged in the inside of packer component.This application realizes the conveying of fuel and combustion improver in the inside of wellbore casing by using sucker rod string, and realizes the filling of fuel by using conveying component in sucker rod string, realizes the conveying of high-pressure gas by the cooperation of sand blasting pipe and air inlet pipe, realizes the storage of solid fuel by the cooperation of fracture, realizes the sequential conveying of fuel and combustion improver by packer component, and realizes the automatic opening of packer component by using the gas pressure generated during conveying, can realize the mixing of gas after sequential conveying in well, and can also improve the safety performance of combustion operation.

The invention discloses a low-combustion-temperature oxygen-deficient high-pressure-index rich-combustion fuel gas generating agent which comprises the following components in percentage by mass: 50-70% of an oxidizing agent; 12%-30% of hydrocarbon solid fuel; 0-2.5% of a combustion rate regulator; 9%-17% of an adhesive; 0-3.5% of a plasticizer; and 0.7-1.3% of a curing agent. The invention also discloses a preparation method of the fuel gas generating agent. According to the low-combustion-temperature oxygen-poor type high-pressure-index rich-combustion gas generating agent, the gas temperature ranges from 1100 K to 1600 K, the pressure index ranges from 0.5 to 0.8, the oxygen coefficient ranges from 0.3 to 0.45, the total molar ratio of rich-combustion gas ranges from 60% to 84.8%, rich-combustion gas is provided for a rotary detonation engine, and a power source is provided for a solid attitude and orbit control engine.

Operation of a solid fuel burning device can be monitored using a video sensor located remote from the solid fuel burning device and at least another sensor. The video sensor can record video data that monitors actions and behavior related to the solid fuel burning device. The other can record at least temperature data related to the solid fuel burning device. A controller can: detect an occurrence related to an object in at least the video data; create an identified occurrence; determine a context of the identified occurrence based on a stage of a fire cycle of the solid fuel burning device; and characterize the identified occurrence in the context as satisfactory or sub-optimal, such that: when the identified occurrence in the context is satisfactory, continue normal operation; and when the identified occurrence in the context is sub-optimal, send a message to a user of the solid fuel burning device.

A combined heat and power (CHP) system and a method of operating is provided. The CHP system includes an oxygen-air separation device. A combustion chamber has an inlet coupled to the oxygen-air separation device. The combustion chamber receives an expanded heated CO2 working gas for combustion of solid fuel and generates a CO2 exhaust gas. The expanded heated CO2 working gas comprising at least a portion of the CO2 exhaust gas. A heat exchanger receives combustion gases and outputs a cooled CO2 working gas. A turbine is provided having a compression section and an expansion section, the compression section configured to receive and compress the cooled CO2 working gas and to direct it to the heat exchanger. The turbine receives a heated CO2 working gas at the expansion section and expands the heated CO2 working gas. In an embodiment, CO2 products may be generated from the system.

The invention relates to a propulsion system (1) which is capable of generating a modular thrust, the propulsion system (1) comprising a body (10) which encloses a combustion chamber (8) in communication with at least one nozzle or propulsion valve (6) situated outside the body (10), the body (10) further enclosing a solid-fuel gas generator (9) which is configured to generate gases in the combustion chamber (8), wherein the gas generator (9) comprises a plurality of unit modules (5) which can be ignited independently by at least one combustion triggering device (40) and are separated from one another by a thermal insulator (30), the unit modules (5) being housed inside the body (10) and these unit modules (5) extending along the axis (A) while being distributed around the axis (A).