303 results about "Residual carbon" patented technology

The invention belongs to the technical field of energy conversion equipment and solid resource pyrolysis conversion utilization, and discloses continuous replacement type pyrolysis equipment and a pyrolysis method thereof. The continuous replacement type pyrolysis equipment comprises a feeding system, a microwave generating system is arranged on one side of the feeding system, a carbon residue collecting system is arranged at the bottom of the feeding system, a continuous replacement system is installed in the microwave generating system, and a reaction system is installed in the continuous replacement system. One side, far away from the feeding system, of the reaction system is connected with a product collecting system; through the synergistic effect of microwave pyrolysis and dynamic replacement design, pyrolysis of crushed materials and tar cracking are integrated into a continuous process, efficient energy conversion is achieved, high-added-value products such as liquid fuel / chemicals and pyrolysis carbon residues are finally produced, and reduction, harmlessness and resourceful treatment of solid resources is promoted.

The invention discloses a carbon / nano zero-valent iron composite material based on coal gasification slag and a preparation method of the carbon / nano zero-valent iron composite material. The method comprises the following steps: performing component separation on the coal gasification slag to obtain an iron-rich residual carbon component, mixing and grinding the iron-rich residual carbon component and sodium hydroxide according to a specific mass ratio, performing high-temperature calcination treatment in a nitrogen protective atmosphere, and performing hydrothermal activation reaction, solid-liquid separation, washing and drying to obtain the carbon / nano zero-valent iron composite material. The material shows excellent hexavalent chromium removal performance, can realize efficient removal of Cr (VI) in water within 5 minutes (the removal rate reaches 78.9%), and has remarkable structural stability. Synergistic activation of the endogenous iron-carbon components in the industrial solid waste is creatively achieved, a green and environment-friendly novel functional material solution is provided for heavy metal pollution treatment, and the method has important environmental benefits and industrial application value.

The invention provides a method for preparing a sodium-storage hard carbon negative electrode material from heavy oil, which comprises the following steps: by taking the heavy oil as a raw material, doping 1wt%-5wt% of an acidic catalyst and an aldehyde crosslinking agent, and putting the mixture into a corrosion-resistant reaction kettle for shallow crosslinking polycondensation treatment; then carrying out air oxidation crosslinking to obtain an isotropic asphalt product with good fluidity and low quinoline insoluble content; and carrying out carbonization and acid-base etching treatment to prepare the sodium-storage hard carbon negative electrode material with excellent rate capability and long-period stability. According to the method, the utilization rate of small molecules in the ethylene tar is guaranteed through shallow cross-linking polycondensation by adding the acid catalyst and the aldehyde cross-linking agent, and the yield of the material is remarkably improved; and treating a cross-linked polycondensation product by using an oxidation cross-linking process to prepare the high-carbon-residue isotropic asphalt with different softening points and low quinoline insoluble content. On the basis of the process, a carbonization-acid-alkali etching process is utilized to treat isotropic asphalt, and the sodium storage hard carbon negative electrode material with high battery capacity, excellent rate capability and long-period stability is prepared.

The invention provides a method for enriching vanadium and titanium slag through hydrogen-based shaft furnace hydrogen-rich gas reduction-electric furnace melt separation regulation and control of vanadium titano-magnetite. According to the method, the metallization rate of metallized pellets is larger than or equal to 90% and the residual carbon content is 1t through H2-rich reduction (high H2 concentration and staged temperature control); 0.5%; caO and MgO are added in the melting and grading stage to regulate and control slag phase composition, and high-grade vanadium-titanium slag with TiO2 larger than or equal to 45% and V2O5 larger than or equal to 2.3% and low-carbon molten iron are obtained. The high-efficiency separation and carbon footprint of iron, vanadium and titanium in the vanadium titano-magnetite is reduced by more than 50% compared with a traditional process, high-quality raw materials are provided for titanium dioxide and vanadium extraction, and the method has the advantages of high efficiency, cleanness and low consumption.

The invention discloses a preparation method of a lithium iron phosphate positive electrode material, three iron sources with different forms and different particle sizes participate in preparation of the lithium iron phosphate positive electrode material, and gradation is formed to improve the compaction density and rate capability of the material. The EDTMPA reduces the viscosity of the slurry, is anchored on the surface of FePO4 particles through strong adsorption, inhibits particle aggregation through steric hindrance and electrostatic repulsion effect, and introduces hydrophilic groups to enhance wettability, reduce the viscosity of the system, optimize dispersion stability, accelerate particle crushing and refining, reduce the particle size and shorten the grinding time; in the sintering process, a reducing agent is generated through pyrolysis to inhibit too fast oxalic acid decomposition to cooperate with the generated reducing gas, Fe < 3 + > is completely reduced, the reduction temperature is reduced to inhibit grain growth, and the grading effect between large and small particles is improved; in addition, an N-doped carbon coating layer is formed through high-temperature cracking, pores are filled with residual carbon generated through decomposition of ferrous oxalate, the coating density is improved, the carbon-coated graphitization degree is improved, and then the electronic conductivity and the rate capability of the material are improved.

The invention discloses a biomass-based hard carbon composite material quantitatively prepared based on a hard carbon pore volume and a method thereof, a negative electrode material and a battery. The method provided by the invention comprises the following steps: firstly, uniformly dispersing a pore-forming agent in biomass powder, pre-carbonizing, and washing to obtain a porous carbon matrix; according to the steps, pore forming is completed while pre-carbonization is completed, the porous carbon matrix with a certain pore volume is prepared, the dosage of the soft carbon precursor is designed based on the total pore volume in the subsequent steps, quantification and rationalization of the dosage of the soft carbon precursor can be achieved, the obtained product is good in performance consistency, and industrial production can be achieved. And the problem that subsequent soft carbon raw materials cannot be scientifically matched due to diversity of raw materials of biomass with different sources can also be avoided. Besides, by utilizing the chemical cross-linking reaction of asphalt and biomass carbon, not only is the carbon residue rate improved, but also a unique structure rich in closed pores and ultra-micropores is constructed, and the problems of low initial coulombic efficiency and insufficient platform capacity of traditional hard carbon are effectively solved.

The invention belongs to the field of wind power, and relates to a waste wind power blade pyrolysis system and method. The system comprises a pyrolysis device, a combustion device, a carbon removal device and a gas return pipe, wherein the internal space of the pyrolysis device can receive external third gas to pyrolyze the blades, output pyrolysis solids to the carbon removal device and output pyrolysis oil gas to the combustion device; the external space of the pyrolysis device heats the internal space by using the first gas, and outputs a second gas; the combustion device is used for receiving and combusting pyrolysis oil gas and air and outputting first gas to an external space; the carbon removal device is used for receiving the pyrolysis solid and the carbon removal gas, removing residual carbon of the pyrolysis solid and then outputting glass fibers to the outside; the gas return pipe is connected with the internal space, and part of the second gas serves as third gas to be fed into the internal space. The blades are heated in a radiation and convection mode, the amount of smoke fed into the pyrolysis device can be adjusted, the pyrolysis process is stable, fiber strength loss is avoided, and the energy utilization rate is increased.

The application provides a coal-based solid waste flotation-metallurgy-material resource comprehensive utilization process method and application, and belongs to the technical field of coal-based solid waste comprehensive utilization.The coal-based solid waste is first separated by flotation to obtain residual carbon and tail ash; then the tail ash is dried and alkali melted to become active material; then the active material is leached and filtered to obtain leaching liquid and leaching residue, and Li and Ga in the leaching liquid are adsorbed and enriched; the adsorbed leaching liquid is adjusted in silicon-aluminum ratio, hydrothermally crystallized, filtered and high-temperature calcined to obtain mesoporous molecular sieve; the filtered silicon-containing alkali liquor is carbonized and calcined to obtain white carbon black; the tail ash and the leaching residue are mixed, and through moisture adjustment and curing process, a geopolymer product is obtained.The method in the application does not produce waste residue and waste water in the implementation process, finally obtains four products of Li and Ga enrichment product, geopolymer product, mesoporous molecular sieve and white carbon black, realizes full and comprehensive utilization of the coal-based solid waste, and has good environmental benefits and great significance.

The invention relates to the technical field of special ceramic products, in particular to ceramic capable of naturally forming cracks and a preparation method thereof, and solves the defects in the prior art. The ceramic comprises the following components: a matrix phase: aluminum oxide and tetragonal phase zirconium oxide; the biological template derivative phase is a carbonized bamboo fiber residual carbon network, the surface of the carbonized bamboo fiber residual carbon network is coated with a beta-silicon carbide quantum dot layer, and the residual carbon network is distributed in a radial density gradient manner; a reinforcing phase: beta-sialon whiskers; and the surface functional layer is an yttrium oxide stabilized yttrium aluminum garnet pinning phase and a pyrochlore type lanthanum zirconium oxide nano porous layer. According to the method, through accurate mapping of material components and process parameters (centrifugal force gradient, water vapor partial pressure and asymmetric cooling), synchronous optimization of crack morphology and mechanical properties is achieved, the mindset of'crack inhibition 'of traditional ceramics is broken through, and a new paradigm of'active crack design' is created.

The invention belongs to the field of comprehensive utilization of chromite, and particularly relates to a method for producing high-carbon ferrochrome through chromite pellet prereduction-electric furnace smelting. According to the method, a reduction method that a reducing agent and chromite pellets are fed into a kiln separately is adopted, chromite oxidized pellets are prepared firstly and then reduced through a rotary kiln solid carbon reducing agent, and the obtained pre-reduced pellets are subjected to electric furnace smelting with a calcium flux and a magnesium flux as slagging fluxes to prepare the high-carbon ferro-chrome. The problem that according to an existing method, the metallization rate of the pre-reduced pellets and the adverse effect on electric furnace smelting caused by unstable carbon residues are solved, the production stability of the electric furnace can be improved, and meanwhile the electric furnace smelting temperature can be increased. The method is simple, controllable, low in energy consumption, high in efficiency, high in stability, low in production cost and convenient for industrial application.

The invention relates to the technical field of capacitors, in particular to a porous carbon acid modification preparation method with cottonseed hulls as raw materials and application. The preparation method comprises the following steps: performing ultrasonic treatment on cottonseed hulls in a dilute acid solution, performing acidification modification on the cottonseed hulls through acidification reaction, and performing microwave pore forming to obtain porous carbon with developed pores and large specific surface area; mineral substances in pores of the porous carbon and carbon residue fragments in the pores can be removed through acid washing and water washing, so that the pore utilization rate can be remarkably increased; porous carbon containing a large number of micropores and mesopores can be formed to provide a wider charge transport channel for subsequent charging and discharging of the supercapacitor, so that the specific capacitance of the supercapacitor is improved; finally, the carbon skeleton structure of the acidized cottonseed hull is more stable, the carbon skeleton structure of the prepared porous carbon as a capacitor electrode material can still remain unchanged after multiple charging and discharging, and the cycling stability is very outstanding.

The invention provides a collaborative treatment and resource utilization process for CO2 in industrial solid waste and tail gas, and belongs to the technical field of environmental protection. According to the method, carbon residues in the gasified slag are used as a catalyst, and aluminum and silicon are extracted through the gasified slag chemical method under the polybasic acid aqua regia effect and the electrochemical effect. According to the method disclosed by the invention, a stack retting neutralization mode is adopted, so that the superacid and aluminum and iron oxides in the ash residues are converted into soluble salts, and ferric hydroxide, aluminum hydroxide and polybasic acid ammonium are sequentially replaced from a salt solution by virtue of an ammonia replacement method, so that the use safety risk of high oxidability of polybasic acid is overcome; rapid crystallization of the aluminum salt solution in the form of aluminum chloride is promoted by using the same ion effect; performing stack retting neutralization reaction on the slag charge and sodium hydroxide to generate sodium silicate, introducing carbon dioxide to obtain silicic acid and sodium carbonate, and reacting the sodium carbonate solution with calcium hydroxide to obtain sodium hydroxide. The sodium hydroxide, the polyatomic acid, the ammonia gas and the activated carbon are recycled for treating the fly ash and the coal gangue, so that the comprehensive utilization of multi-element solid waste is realized.

The present invention discloses a device and method for thermally converting and recycling glass fibers from waste wind turbine blades, which relates to the technical field of organic solid waste pyrolysis. It solves the technical problems of non - continuous feeding, high energy consumption and product application degradation in existing thermal recovery solutions. The key points of its technical solution are that the pyrolysis unit uses a feed hopper and a screw auger to achieve the thermal decomposition of waste wind turbine blades under continuous feeding, generating pyrolysis oil - gas and pyrolysis solids; the residual carbon oxidation unit further completely oxidizes the residual carbon in the pyrolysis solids to obtain inorganic solids, and collects and separates them through a pneumatic separator to recover clean glass fibers; the oil - collecting and gas - washing unit and the inorganic solid collection unit recover the waste heat of the products to reduce the energy consumption of the device, thereby realizing the complete separation of the resin matrix and glass fibers of waste wind turbine blades and recovering glass fibers, reducing the energy consumption of waste wind turbine blade thermal recovery, reducing secondary pollution and improving the product quality.

The invention relates to the technical field of material forming, and discloses a preparation method of a 3D printing electronic-grade high-purity silicon carbide component, and the preparation method of the 3D printing electronic-grade high-purity silicon carbide component comprises the following steps: preparing a high-solid-content slurry, mixing silicon carbide powder with the purity of more than or equal to 99.99% with a nano dispersant, and then carrying out acoustic resonance dispersion to obtain the slurry; the solid content of the uniform slurry ranges from 55 vol% to 65 vol%, and the viscosity of the uniform slurry ranges from 1000 mPa.s to 1500 mPa.s. According to the preparation method of the 3D printing electronic-grade high-purity silicon carbide component, in order to improve the purity of the silicon carbide component, silicon carbide powder with the purity larger than or equal to 99.99% is adopted, acoustic resonance dispersion is carried out during slurry preparation so as to control the silicon impurity content to be smaller than or equal to 0.028 wt%, and a 3D printing cavity and a printing head take plastic or high-purity silicon carbide as a base body or a coating to avoid pollution; and meanwhile, in the degreasing treatment, the CO2 concentration is monitored to ensure that organic components are completely removed so as to reduce residual carbon, so that the effect of preparing the electronic-grade high-purity silicon carbide part is realized.

The invention discloses a thermal cracking carbon black iodine absorption value test detection method, and relates to the technical field of material detection. The method comprises the following steps: drying thermal cracking carbon black at 125 DEG C for 1 hour to remove water, weighing 0.5 g of a sample, stirring and adsorbing with 0.04730 mol / L iodine solution at the rotating speed of 10-30 r / min for 10-30 minutes, carrying out centrifugal separation at the rotating speed of 3000-5000 r / min, ensuring that no residual carbon black exists in supernate through light transmittance detection, titrating with 0.03940 mol / L sodium thiosulfate solution, and calculating an iodine absorption value by combining a blank test. The innovation point is an exclusive drying process, dynamic adsorption-centrifugation synergy and a quantitative quality control system. The method has the beneficial effects that the detection period is shortened to be within 1 hour, the measurement error is reduced to + / -1.5%, the problems of insufficient adsorption separation and the like of a conventional method are solved, and the method is suitable for carbon black quality control in the fields of waste tire recovery and the like.

The application discloses a coal gasification residue harmless treatment system and method in the technical field of solid waste treatment, which comprises the following steps: a screening device is used for screening treatment of the coal gasification residue to obtain oversize material and undersize material; a grinding device is used for grinding treatment of the oversize material to obtain ground oversize material; a sorting device is used for residual carbon sorting treatment of the undersize material to obtain concentrate and gasification tail residue, wherein the concentrate is used as a residual carbon product after dehydration, and the gasification tail residue is used as mixed material with the ground oversize material after dehydration and enters a compound leaching device; the compound leaching device is used for compound leaching and dehydration treatment of the mixed material; a chemical oxidation device is used for chemical oxidation and dehydration treatment of the mixed material after the compound leaching and dehydration treatment; and a water washing adjusting device is used for water washing adjustment and dehydration treatment of the mixed material after the chemical oxidation and dehydration treatment. The coal gasification residue generated by the coal chemical industry is subjected to systematic harmless treatment, and the effect of turning waste into treasure is realized.

The invention discloses a biomass double-hearth combustion furnace with a direct-flow burner and a rotational-flow burner arranged at the bottom, and relates to the technical field of combustion equipment. The problems that an existing combustion device is insufficient in adaptability to the particle size of biomass particles, and large-particle biomass is difficult to burn out completely are solved. A direct-current burner is connected with the outer wall of an inner-layer furnace and the inner wall of an outer-layer furnace through a posture adjusting assembly, a turbulent burner and an inner-layer furnace combustion chamber which are embedded inside and outside are installed at the bottom of the inner-layer furnace, a through turbulent burner is installed at the bottom of the inner-layer furnace combustion chamber, and a third smoke exhaust channel is formed in the upper portion of the inner-layer furnace. An outlet of a first smoke exhaust channel in the upper portion of the outer-layer furnace is communicated with a third smoke exhaust channel, an outlet of a second smoke exhaust channel is communicated with an inlet of a cyclone separator, an outlet in the upper end of the cyclone separator is communicated with an inlet of a turbulent burner through a combustible gas connecting pipeline, and an outlet in the lower end of the cyclone separator is communicated with a combustion chamber of the inner-layer furnace through a carbon residue channel. The biomass burner is used for achieving sufficient burning of large-particle biomass, and the burn-off rate is increased.

The invention discloses a system and a method for producing synthesis gas by coupling biomass double-fluidized-bed chemical looping gasification and oxygen-enriched combustion, and belongs to the technical field of energy, environmental protection and chemical engineering. The system comprises a stock bin, a feeder, a fluidized bed gasifier, a return feeder, a fluidized bed oxygen-enriched combustion furnace, a cyclone separator, a heat exchanger and a purifier. Biomass and an oxygen carrier are subjected to a chemical chain gasification reaction in the fluidized bed gasification furnace to generate high-quality synthesis gas, residual carbon and the oxygen carrier after the reaction enter the fluidized bed oxygen-enriched combustion furnace to be subjected to an oxygen-enriched combustion reaction to generate high-concentration carbon dioxide, and the oxygen carrier returns to the fluidized bed gasification furnace after being regenerated. By coupling the double-fluidized-bed chemical-looping gasification and oxygen-enriched combustion technologies, the problems of low carbon conversion rate and the like of the existing biomass chemical-looping gasification are solved, the co-production of high-quality synthesis gas and high-concentration carbon dioxide is realized, the flexibility of a process organization for producing green liquid fuel by taking biomass as a raw material is improved, and the production cost is reduced. The requirements on follow-up synthesis process parameters are reduced, and the material and energy utilization efficiency of the whole system is effectively improved.

The invention provides a carbonized hair production quality control method which comprises the following steps: acquiring real-time thermal weight loss curve data in a carbonized hair production process, and extracting thermal weight loss abnormal characteristics to obtain an abnormal characteristic set; on the basis of the abnormal feature set, quantifying the relationship among the weight loss rate change, the feature temperature point offset, the carbon residue rate fluctuation and the weight loss platform time, and combining the association between the weight loss rate abnormal change and the medicinal component content to form a feature combination; inputting a feature combination, training a dynamic mapping relationship between abnormal features and carbonized hair product quality indexes, predicting the product quality indexes of the current production batch of carbonized hair, and generating a quality evaluation result; if the storage stability deviates from the standard due to the fact that the weightlessness platform time is abnormal, quality deviation characteristics are obtained by analyzing the relation between the weightlessness platform time and storage stability parameters.

The invention belongs to the technical field of solid waste utilization and glass ceramics, and relates to a method for preparing glass ceramics from coal gasification slag and application of the method. The method comprises the following steps: S1, mixing coal gasification coarse slag and coal gasification fine slag, then adding an activating agent, and carrying out roasting and vibratory screening in sequence, so as to obtain a precursor; and S2, crushing the precursor in the step S1, melting, cutting, crystallizing and cooling to obtain the microcrystalline glass. According to the invention, the coal gasification coarse slag and the coal gasification fine slag are used as raw materials, and residual carbon contained in the fine slag is used for providing heat by mainly adopting activation, melting and crystallization treatment methods, and meanwhile, a stable silicon dioxide phase on the surface of the coal gasification slag is converted into active silicate, so that the mechanical property and the chemical stability of the microcrystalline glass are improved.

The invention discloses a preparation method of C3H5NO-ZnCl2, a preparation method of Mg4Al2Zn2PO4 hydrotalcite, a preparation method of an intumescent flame-retardant epoxy acrylate coating and a coating thereof, phosphate radical series hydrotalcite is prepared by adopting a coprecipitation method, the phosphate radical series hydrotalcite is matched with ZnCl2 and EA, and the coating is formed by UV curing, so that the flame-retardant property of the epoxy acrylate coating (EA) is improved, and the flame-retardant property of the coating is improved. The result shows that ZnCl2 can be well inserted into the hydrotalcite layer; the flame retardant effect of the Mg4Al2Zn2PO4-C3H5NO-ZnCl2 (1: 1) / EA coating is optimal, and the carbon residue rate, the limit oxygen index and the vertical combustion level of the coating are optimal and are respectively 56.84%, 56 and V-0. Meanwhile, the flame-retardant coating has good transparency and mechanical properties, the light transmittance of the flame-retardant coating can reach 92% at most, and the hardness of the flame-retardant coating reaches 6H; the thermal decomposition temperature is high, the high-temperature calcined carbon layer structure is a regular hexagonal honeycomb-shaped stable structure, and the flame retardant property is high.

The invention relates to the technical field of solid waste recycling, and particularly provides a circulating fluidized bed system for gasification fly ash resourceful treatment and an aluminum oxide leaching method. The system comprises a hearth, a gas-solid heat exchange bed and an activation reactor. The gasified fly ash and a water glass binder are agglomerated and thickened through a fine powder agglomerator, incineration is conducted through a hearth, and ammonia gas is injected to fix heavy metal; the ash enters an activation reactor, a mullite structure is destroyed by utilizing residual carbon oxygen-enriched combustion (850-950 DEG C) of fly ash, aluminum ions are extracted through gradient acid leaching, acid leaching liquid is neutralized by ammonia water to precipitate aluminum hydroxide, and high-purity aluminum oxide (greater than 99%) and a byproduct ammonium chloride fertilizer are obtained through calcination; the escape rate of fine particles is lower than 10%, the leaching rate of aluminum oxide exceeds 85%, and the treatment cost is reduced by 50% or above compared with that of a traditional method.

The invention provides a carbon emission accounting method in an agricultural waste gas-carbon co-production process, and belongs to the technical field of agricultural waste gas-carbon co-production. Establishing a carbon mass conservation mechanism equation based on the feeding carbon content, the gas production carbon content, the tar carbon content and the residue carbon content to describe a carbon element distribution rule, and intelligently predicting the tar generation amount and the methane conversion rate by utilizing a prediction model integrated temperature calibration mechanism; a tar pyrolysis kinetic equation is adopted to calculate the generation amount of carbon dioxide and light alkane in the tar secondary pyrolysis process, a carbon emission factor database covering different raw material types and operation conditions is established, and finally the total carbon emission is calculated through a carbon emission accounting comprehensive algorithm integration mechanism calculation, kinetic modeling and an intelligent prediction result. The technical problem of insufficient carbon emission accounting precision in the agricultural waste gasification process is solved.

The invention discloses a manufacturing method of a high-strength low-carbon-residue silicon nitride ceramic green body for electronic ceramics, which achieves the purpose of enhancing strength by increasing the content of PVB (polyvinyl butyral) in tape casting slurry or increasing the molecular weight of PVB because a three-dimensional network structure formed by PVB in the green body can be enhanced by larger addition amount of PVB and PVB with higher molecular weight. The green body defect caused by non-uniform dispersion of silicon nitride powder can be eliminated to a certain extent through PVB with larger molecular weight and more PVB increment, the strength and mechanical property of the green body are improved, meanwhile, the effect of electrostatic repulsion brought by the surface of the coated powder is improved through reasonable proportion matching of ammonium polyacrylate and ammonium citrate, and the strength and mechanical property of the green body are improved. Meanwhile, polyethylene glycol and salmon fish oil are creatively added and reasonably matched, the steric hindrance dispersion effect of large and small molecule matching is provided, the proportion of the four dispersion effect media is adjusted to be optimal, and under the condition that the high strength of the green body is guaranteed, the carbon content of the product obtained after glue discharging is low.

The invention discloses a coal-based solid waste carbon residue flotation method based on photocatalysis, and aims to solve the problems that traditional coal-based solid waste flotation is low in efficiency, insufficient in resource recovery and the like. According to the residual carbon flotation method, coal-based solid waste is pretreated and then enters a photocatalytic reaction system, surface modification is completed under the specific illumination intensity and reaction time, and then the coal-based solid waste enters a flotation unit to be subjected to flotation operation. By controlling the photocatalytic modification degree and flotation parameters, the flotation recovery rate of the target substance residual carbon in the coal-based solid waste can be remarkably increased. The photocatalysis technology and the flotation technology are coupled, the floatability of the coal-based solid waste can be effectively improved, the resource recycling rate is increased, and the method has the advantages of being easy and convenient to operate, low in energy consumption, environmentally friendly and the like, can be widely applied to the fields of treatment of residual carbon in the coal-based solid waste and resource recycling and has wide application prospects. The method has important technical value and wide market application prospect in the solid waste resource utilization direction.

The utility model discloses a dehumidification waste powder bin structure, including waste powder bin, scraper and drum core, the waste powder bin is provided with the powder storage chamber and dehumidification chamber, the drum core sets up on the waste powder bin and sets up in the opening position close to the powder storage chamber, the scraper sets up on the waste powder bin and is pasted with the drum core, the scraper is used for cleaning the carbon powder remaining on the drum core surface when the drum core rotates, the dehumidification chamber is used for placing the dehumidification piece, and the dehumidification chamber is provided with the opening communicating with the outside. The dehumidification chamber provided with the waste powder bin can place the dehumidification piece, and the opening communicating with the outside design can make the whole selenium drum interior and the dehumidifier interior communicate, make the air interflow, thereby the dehumidification piece can continuously absorb the moisture in the whole selenium drum interior, and effectively prevent the accessory from being affected by damp and printing effect.

A gasifier based on a fly ash recirculation system and its working method disclosed by the present invention belong to the technical field of gasifiers. The inlet of the gas ash remover is connected to the waste heat boiler outlet of the gasifier, the bottom outlet of the gas ash remover is connected to the fly ash storage tank, the fly ash storage tank and the pulverized coal conveying atmospheric tank are respectively connected to the pulverized coal conveying variable pressure tank, the pulverized coal conveying variable pressure tank is connected with a stamping nitrogen inlet pipe, the pulverized coal conveying variable pressure tank is connected to the pulverized coal conveying high pressure tank, the pulverized coal conveying high pressure tank is connected to the burner of the gasifier, and the pulverized coal conveying high pressure tank is connected with a high pressure nitrogen inlet pipe; the fly ash and pulverized coal blending system is respectively connected to the fly ash storage tank and the pulverized coal conveying atmospheric tank. The present invention can make full use of fly ash residual carbon, accurately control the ratio of fly ash to coal, at the same time, simplify the fly ash conveying process, reduce the loss of the coal mill, make full use of the system pressure energy, and greatly save the fly ash circulation cost and equipment investment.

The invention belongs to the field of high-value utilization of waste industrial products, and particularly relates to a method for preparing a silicon-carbon electrode material by using metal-rich residual carbon of a coal-to-hydrogen byproduct. According to the method disclosed by the invention, harmful light and heavy metal impurities in the metal-rich residual carbon can be removed, and meanwhile, the carbon-silicon composite porous structure and the endogenous graphene are synchronously generated. Due to the large surface specific surface area, the special hole structure and the enhanced conductivity of endogenous graphene, when the carbon structure is matched with hybrid silicon holes in the carbon structure to be used as electrodes of a super capacitor, a lithium ion battery and a sodium ion battery, the super capacitor, the lithium ion battery and the sodium ion battery can obtain very high electrochemical performance; and particularly, the material has excellent specific capacity and excellent rate capability.

The present invention belongs to the technical field of chemical production, and specifically relates to a sample pretreatment method for detecting the carbon content of titanium tetrachloride by high-temperature calcination, which solves the defect in the prior art that all carbon-containing substances cannot be analyzed and added up by infrared spectroscopy and gas chromatography, resulting in the influence on the accuracy of total carbon determination; the technical solution includes: weighing a certain mass of titanium tetrachloride and a Lewis acid, adding the Lewis acid to the titanium tetrachloride, heating and refluxing to precipitate the residual carbon in the titanium tetrachloride, collecting the residual carbon precipitate through a filtering instrument, and cleaning the filtering instrument with a suitable reagent to ensure complete separation of the titanium tetrachloride and the residual carbon. Then, the residual carbon is completely dried and the mass is recorded, and after drying, it is calcined at high temperature until complete and the mass is recorded. The carbon content of the titanium tetrachloride is calculated according to the mass loss before and after calcination and the mass of the weighed titanium tetrachloride.

The application discloses a coal-based gasification slag residual carbon backflow, circulating and reselecting extraction system and process, and relates to the technical field of coal chemical industry.The system comprises a circulating water pool, a water bubbling machine, a water selection pool, a particle size sorting machine, a sedimentation classifier, a desliming screen, an A-spiral group, a B-spiral group and a hot air pressure filter.The coal-based gasification slag residual carbon recovery rate reaches more than 98%, which is much higher than the residual carbon recovery rate level of less than 60% in the same industry.The water content of the extracted carbon is less than 40%.The coal-based gasification slag residual carbon backflow, circulating and reselecting extraction system and process can realize the water content of the carbon product after the extraction of the residual carbon in the coal-based gasification slag to be less than 40%, which is much higher than the water content level of 50%-70% of the extracted carbon in the same industry, and effectively solves the technical problem of the dehydration difficulty of the gasification fine slag.