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2550 results about "Waste treatment" patented technology

Waste treatment refers to the activities required to ensure that waste has the least practicable impact on the environment. In many countries various forms of waste treatment are required by law.

Material containing device and curing equipment

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to a material containing device and curing equipment. The first containing piece and the second containing piece of the material containing device are arranged to be in a detachable and separable form, so that powdery radioactive materials cannot escape from a seam, and meanwhile, after the powdery materials are pressed into solid materials, the first containing piece and the second containing piece can be separated; the solid materials contained in the first containing part can be independently transferred, the material containing device is prevented from being integrally transferred when the solid materials are transferred, and the transferring efficiency of the solid materials is improved. According to the curing equipment, the material containing device is adopted as a material conveying carrier, materials in different stages and states in the curing process can be contained, and leakage of the materials is prevented; meanwhile, in the whole curing process, form transformation of the materials can be achieved without replacing the containing device, the operation process is simplified, material spill caused by replacing the containing device is avoided, and therefore the curing efficiency is improved.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Lifting feeding equipment and curing equipment

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to lifting feeding equipment and curing equipment. According to the lifting feeding equipment provided by the embodiment of the invention, the conveying jacking device drives the material containing device to move in different directions, so that the material containing device abuts against the vacuum feeding device, the powdery materials can be conveyed to the material containing device from the vacuum feeding device, the powdery materials can be prevented from escaping through jacking communication, and the working efficiency is improved. And material waste and operation space pollution are avoided. According to the curing equipment provided by the embodiment of the invention, the material containing device is moved through the lifting feeding equipment, and the powdery materials are conveyed to the material containing device, so that the powdery materials can be prevented from being scattered; and meanwhile, the material containing device containing the powdery materials can reach other processing stations by moving the material containing device into or out of the containing space so as to carry out the next processing procedure.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Material processing equipment and curing equipment

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to material treatment equipment and curing equipment. According to the material treatment equipment provided by the embodiment of the invention, the powdery material in the material accommodating device is converted into a partially molten state through the material treatment device, and the partially molten material is converted into the solid material through the pressurizing device, so that the powdery material can undergo conversion of different states in the material accommodating device; therefore, powdery materials are converted into solid materials convenient to transfer and process, the operation of replacing a container is omitted, and material processing procedures are saved. According to the curing equipment provided by the embodiment of the invention, the sealing device is used for sealing the material treatment equipment, so that the state transition process of the powdery material has better sealing performance and stability, and the stable quality of the produced solid material is ensured.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Efficient integrated machining equipment for automobile hub

The invention provides efficient integrated machining equipment for automobile hubs, and relates to the technical field of hub machining, the efficient integrated machining equipment comprises a turning numerical control table, a hydraulic expansion mandrel, a turning assembly and a turning rack, the turning numerical control table is fixedly installed at the side end of the turning rack, the hydraulic expansion mandrel is fixedly installed on the turning numerical control table, and the hydraulic expansion mandrel is fixedly installed on the turning rack. The turning assembly is fixedly installed on the turning machine frame, a recycling mechanism for recycling waste liquid is arranged on the turning machine frame, a processing mechanism for processing the waste liquid is arranged on the turning machine frame, and the recycling mechanism comprises a turning protective cover, a cooling spray head and a V-shaped guide plate. According to the device, the V-shaped guide plate, the coarse separation box, the stainless steel wire net, the recycling box, the filtering layer and the scrap box are matched, and functional modules such as waste liquid diversion recycling, preliminary separation, metal scrap adsorption, scraping and collection, waste liquid fine filtering and waste scrap temporary storage are compactly integrated on turning equipment; and extra arrangement of a huge and dispersed external system for waste treatment is avoided.
Owner:HAINING NICE FLOURISH AUTO PARTS

Preparation method of green high-performance industrial solid waste-based grouting material

The invention discloses a preparation method of a green high-performance industrial solid waste-based grouting material, and belongs to the field of industrial solid waste treatment and grouting reinforcement, and the preparation method comprises the following steps: performing dry mixing on red mud, slag, fly ash and cement which are dried and ground to specified fineness according to a preset proportion to obtain a uniform dry material; preparing a composite alkali activator from water glass and sodium hydroxide according to a molar ratio of 3: 1, premixing the composite alkali activator with water, and adding the dry material in batches to form wet slurry; and carrying out high-speed shearing and stirring on the wet slurry, and standing and curing to obtain the solid waste-based slurry which can be directly used for grouting. The method obviously improves the solid waste utilization rate, relieves the environmental pressure, and is suitable for related projects such as stratum settlement control, gushing water blocking, mine roadway broken rock mass supporting and underground cavity concrete lining crack repairing in tunnel and subway projects.
Owner:SHANDONG JIANZHU UNIV

Fly ash-based MOFs adsorption-catalysis material integrated preparation method

The invention relates to a fly ash-based MOFs adsorption-catalysis material integrated preparation method, and belongs to the field of solid waste treatment and resource utilization. The material takes industrial solid waste fly ash as a matrix, and is prepared by the following steps: firstly, carrying out alkali modification and silane coupling agent surface activation treatment on fly ash to form a high-activity matrix; then loading a metal organic framework (MOFs) on the surface of the activated fly ash through an in-situ synthesis process to form a porous composite carrier; the integrated material with CO2 adsorption and catalytic conversion functions is further prepared through impregnation of a copper-based active component and a high-temperature calcination process. According to the invention, the problems of high energy consumption, high cost and low comprehensive utilization rate of fly ash of the traditional CO2 capture and utilization technology (ICCU) are solved, high-valued resource utilization of industrial solid waste and efficient capture and conversion of CO2 are synchronously realized, and the method has dual values of environmental protection and economy.
Owner:CHINA UNIV OF MINING & TECH

Curing method

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to a solidification method. According to the method, a conveying and jacking device is used for conveying a material containing device to enable the material containing device to receive powdery materials, a clamping and transferring device and a lifting device are used for conveying the material containing device completing feeding into a material processing device to enable the powdery materials to be partially molten, and a pressurizing device is used for pressing and compacting the partially molten materials; and finally, ingot-shaped solid materials are formed in the material containing device, then the lifting device and the clamping and transferring device are utilized again to transfer the material containing device to the conveying and jacking device so as to transfer the ingot-shaped solid materials, in this way, the process from powder feeding to ingot forming of the materials is conducted in the material containing device, the situation that a material container is replaced in the midway is avoided, and the production efficiency is improved. Operation steps are simplified; and the clamping and transferring device, the lifting device and the conveying and jacking device all participate in the front process and the rear process of material treatment, so that reuse of equipment parts is achieved, and the equipment composition is simplified.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Garbage incineration fly ash geopolymer composite material and preparation method thereof

The invention relates to the technical field of solid waste treatment and recycling, and discloses a waste incineration fly ash geopolymer composite material and a preparation method thereof, and the composite material is prepared from waste incineration fly ash, apatite minerals, zero-valent iron powder, persulfate and an alkali activator. The preparation method comprises the following steps: mixing the waste incineration fly ash, apatite minerals, zero-valent iron powder and persulfate to obtain composite powder; performing frequency conversion mechanochemical synergistic activation on the composite powder, wherein the activation process comprises a low-temperature activation stage and a high-energy pulse activation stage; and finally, mixing the activated powder with an alkali activator, pouring, molding and curing. According to the method, the reduction reaction and the oxidation reaction are driven step by step in the same system by regulating and controlling the mechanical energy input time sequence, the compatibility problem of a reducing agent and an oxidizing agent is solved, different types of persistent organic pollutants are synergistically degraded, meanwhile, heavy metal is stabilized, and the treatment effect is good. And the fly ash is recycled to prepare a geopolymer material with mechanical properties.
Owner:SICHUAN ENERGY SAVING & ENV PROTECTION INVEST CO LTD +1

Monitoring and early warning method for solid waste treatment facility and related equipment

The invention relates to a solid waste treatment facility monitoring and early warning method and related equipment, and the method comprises the following steps: carrying out the real-time physical parameter collection of a solid waste treatment facility through a sensing array, and obtaining a facility operation original data flow; performing time-frequency analysis on the facility operation original data stream to obtain operation state data; performing failure mode matching and risk factor extraction on the solid waste treatment facility based on the operation state data to obtain a failure feature matrix and a risk factor feature matrix; performing risk grade division on the solid waste treatment facility based on the failure characteristic matrix and the risk factor characteristic matrix to obtain a risk grade quantification sequence; and generating an early warning execution strategy of the solid waste treatment facility based on the risk level quantification sequence. The technical problem that a traditional monitoring means depending on manual inspection and threshold alarm often lags in response is solved.
Owner:GUANGDONG YOUWASTE ENVIRONMENTAL PROTECTION TECH CO LTD

Big data analysis method and system for intelligent solid waste treatment

The invention relates to a big data analysis method and system for intelligent solid waste treatment, and the method comprises the following steps: carrying out the multi-point monitoring of a pollution source of a solid waste treatment place, and obtaining environment monitoring data; and through spatial and temporal distribution analysis, a pollutant migration rule is disclosed. And evaluating the environmental bearing capacity of the surrounding area based on a migration rule, and if an evaluation result is lower than a safety threshold value, performing priority ranking on the area in combination with the migration rule to form an area processing sequence. A corresponding process scheme is matched according to the sequence, and the process environment cost is calculated; and if the cost exceeds a preset threshold value, optimizing and adjusting the process according to the cost information, and finally generating a solid waste treatment implementation plan considering environmental benefits and implementation feasibility. The technical problems of low treatment efficiency and frequent secondary pollution in actual operation caused by real-time sensing and scientific pre-judgment capability of dynamic change of a pollution source are solved.
Owner:GUANGDONG YOUWASTE ENVIRONMENTAL PROTECTION TECH CO LTD

Coal gasification slag heavy metal oxidation leaching separation processing system and method

The application discloses a coal gasification slag heavy metal oxidation leaching separation processing system and method in the technical field of mine solid waste treatment, which comprises a multi-radical pre-oxidation device, a primary slag slurry separation and recovery device, a three-stage leaching device and a secondary slag slurry separation and recovery device. The multi-radical pre-oxidation device adds an oxidizing agent solution to the coal gasification slag in three stages and simultaneously performs ozone oxidation and mixing and stirring to obtain coal gasification slag slurry. The primary slag slurry separation and recovery device separates the coal gasification slag slurry, recovers excess oxidizing agent solution and screens out the coal gasification slag. The three-stage leaching device adds mixed organic acid solution to the screened coal gasification slag in three stages, performs mixing and stirring, gradually transfers the heavy metals in the coal gasification slag from the solid phase to the liquid phase, and obtains tail slurry. The application has the advantages of simple operation, low cost, good separation effect and the purpose of effectively controlling the risk of coal gasification slag heavy metal leakage.
Owner:CHINA COAL (TIANJIN) UNDERGROUND ENG INTELLIGENCE RES INST CO LTD +2

Sludge treatment method and system

The invention discloses a sludge treatment method and system, and relates to the field of solid waste treatment, and the method specifically comprises the following operation steps: S1, multi-frequency resonance pretreatment: destroying a sludge colloid structure through stepped mechanical vibration: collapsing an extracellular polymer network at a low frequency, breaking down microbial cell walls at an intermediate frequency to release intracellular water, pathogenic bacteria are inactivated through a high-frequency cavitation effect; s2, performing electrochemical in-situ flocculation; s3, gradient pressure dehydration; s4, low-temperature mineralization stabilization; and S5, vacuum condensation and recovery. According to the sludge treatment method and system, through stepped low-frequency, medium-frequency and high-frequency mechanical resonance, the colloid structure of the sludge can be directionally damaged, the fluidity of the sludge is remarkably improved, chemical conditioners are remarkably reduced, agent residues and secondary pollution are avoided, pathogens are physically inactivated through the high-frequency cavitation effect, and the treatment effect of the sludge is improved. Micro-nano oxygen bubbles are synchronously generated to strengthen free radical oxidation, and a sterile environment is created for subsequent mineralization.
Owner:广东沁桦智能环境技术有限公司

Automatic monitoring method for industrial solid waste treatment process

The invention discloses an automatic monitoring method for an industrial solid waste treatment process, and the method comprises the steps: synchronously collecting a temperature distribution matrix, a gas concentration spectrogram, a kiln body vibration spectrum and a material rheological image in the solid waste treatment process, constructing a multi-source heterogeneous data set, and carrying out the time-space alignment preprocessing; based on a preset solid waste component feature code, calling a process parameter reference value, and performing self-adaptive correction in combination with the material rheological image features to generate a personalized reference set; fusing the multi-modal monitoring data to generate a solid waste reaction process three-dimensional state model, extracting core feature parameters, comparing the core feature parameters with a personalized reference set, and screening abnormal features; inputting the abnormal features into a pre-trained abnormal diagnosis model, and when an abnormal probability value exceeds a preset threshold value, triggering early warning and generating an abnormal identifier; according to the method and the system, intelligent monitoring and regulation of the industrial solid waste treatment process are realized, and the stability, the safety and the treatment efficiency of the treatment process are comprehensively improved.
Owner:MEIZHOU HUALI FENG IND CO LTD

Intelligent monitoring and optimizing method and system for energy consumption in solid waste treatment process

The invention relates to the technical field of data reasoning, and discloses an intelligent monitoring and optimizing method and system for energy consumption in the solid waste treatment process, and the method comprises the steps: cleaning noisy points of energy consumption data during solid waste treatment, and obtaining standard energy consumption data of solid waste treatment; extracting characteristic indexes of time sequence characteristics in the standardized energy consumption data; according to the characteristic indexes, the energy consumption abnormal time period and the high energy consumption link of the target solid waste treatment process are recognized; according to the operation state data of the high-energy-consumption link, state association is carried out on the energy consumption abnormal time period, and an energy efficiency association map of the solid waste treatment process is obtained; according to the energy efficiency correlation map, performing energy consumption optimization on the target solid waste treatment process to obtain an optimized regulation and control strategy of solid waste treatment; performing energy level supervision on the target solid waste treatment process according to the optimized regulation and control strategy; according to the invention, the efficiency of intelligent monitoring and optimization of energy consumption in the solid waste treatment process can be improved.
Owner:LIANYUNGANG LIANHE NEW BUILDING MATERIALS TECH CO LTD

Curing equipment

The embodiment of the invention relates to the field of radioactive waste treatment, in particular to curing equipment. According to the curing equipment provided by the embodiment of the invention, the powdery materials are conveyed into the material containing device through the vacuum feeding device, and the material containing device is transferred to the lifting device through the clamping and transferring device, so that the material containing device is conveyed into the material processing device through the lifting device; the sealing device is used for sealing the material treatment device, so that the material reaction process is carried out in an environment with relatively good sealing performance; the pressurizing device is used for compacting the materials so as to obtain solid materials which are easier to transfer and process compared with powdery materials; the vacuum feeding device, the conveying and jacking device, the clamping and transferring device, the lifting device, the material treatment device and the pressurizing device are fixed to different positions of the body, enough space is provided for all treatment links of materials, the operation sequence of curing treatment is met, the process is simplified, and the treatment efficiency is improved.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Coal gasification slag-steel slag-based high-carbon-storage type filling material and preparation method thereof

ActiveCN120794466AAggregate (composite)Slag
The invention discloses a coal gasification slag-steel slag-based high-carbon-storage type filling material and a preparation method thereof, and belongs to the field of coal-based solid waste resource utilization and carbon emission reduction. The filling material comprises the following components in parts by weight: 100 parts of a cementing material, 10-20 parts of aggregate and 10-20 parts of water. 38 to 52 parts of aggregate; 24 to 40 parts of water; the cementing material comprises the following raw materials: 65-85 parts of coal gasification slag; 15 to 35 parts of steel slag; and 3.0 to 10.5 parts of a composite exciting agent. According to the method, the coal gasification slag can be consumed on a large scale, CO2 is fixed and stored through the carbonization reaction, and stable storage of CO2 is achieved through engineering application of a filling material; the problems of industrial solid waste treatment, carbon emission control, natural resource consumption, environmental pollution and the like are effectively solved, and good environmental protection benefits and practical values are achieved; the invention provides a new technical path for realizing solid waste resource utilization and carbon neutralization targets.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Lithium slag treatment method

The invention relates to the technical field of solid waste treatment, and discloses a lithium slag treatment method which comprises the following steps: (1) mixing lithium slag and an alkaline reactant, and grinding to obtain a mixed raw material; (2) sintering the mixed raw material to obtain sintered clinker; and (3) dipping the sintered clinker in an alkaline solution, and carrying out solid-liquid separation. According to the method, toxic elements in the lithium slag can be effectively removed, environmental risks caused by long-term stockpiling of the lithium slag are avoided, potassium and sodium elements in the lithium slag can be effectively removed, adverse effects of the lithium slag on soil and building materials in building and soil application are avoided, and the utilization rate of the lithium slag is increased.
Owner:CHINALCO ENVIRONMENTAL PROTECTION & ENERGY CONSERVATION GRP CO LTD

Method for degrading formamide organic wastewater and recycling key metal of retired lithium ion battery

The invention relates to the technical field of environmental protection, and discloses a method for degrading formamide organic wastewater and recycling key metals of a retired lithium ion battery. The method comprises the following steps: S1, obtaining the positive electrode material of the retired lithium ion battery, mixing the positive electrode material with formamide organic wastewater, and carrying out hydrothermal reaction to obtain a leachate; s2, adjusting the pH value of the leachate to 6-14, and carrying out a transition metal precipitation reaction to obtain a transition metal hydroxide precursor and a lithium-rich filtrate; and S3, adding a sodium carbonate solution into the lithium-rich filtrate, carrying out a precipitation reaction, and collecting lithium carbonate. The formamide organic wastewater serves as an endogenous reducing agent, deep degradation of the formamide organic wastewater is achieved under the hydrothermal condition, efficient leaching of key metal in the retired lithium ion battery is achieved, and waste is treated with waste; the formamide degradation efficiency can reach 90% or above, and the defects that an existing formamide wastewater treatment method is high in energy consumption, large in reagent consumption, high in cost, low in degradation efficiency and large in environmental treatment pressure are overcome.
Owner:GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI

Device for preparing molten carbon fertilizer through solid waste microwave pyrolysis and waste heat recovery

The invention discloses a device for preparing a molten carbon fertilizer through solid waste microwave pyrolysis and waste heat recovery, and belongs to the field of solid waste treatment and recycling. The device is composed of a pretreatment unit, a microwave pyrolysis unit, a gas-solid separation unit, a gas phase treatment unit, a solid phase treatment unit and a waste heat circulation unit, solid waste enters a microwave rotary kiln after being dried and crushed, a magnetron generates microwave anaerobic pyrolysis under photovoltaic power supply, and a high-temperature gas-solid product is generated; the cyclone separator is used for separating flue gas from solid carbon, the flue gas is condensed to obtain pyrolytic oil and gas, and waste heat of medium-temperature flue gas is recovered through the heat accumulating type heat exchanger for drying; cooling the solid carbon through a heat pipe heat exchanger, recovering waste heat and liquefying urea, and mixing the solid carbon and the urea in a stirring melting pool to prepare a molten carbon fertilizer; and the waste heat backflow fan sends the carbon waste heat back to the drying chamber. The system is driven by green electricity, gas and solid phase waste heat is recovered through double paths, solid waste efficient pyrolysis-product high value-energy self-circulation is achieved, and energy consumption and carbon emission are reduced.
Owner:GUANGDONG OCEAN UNIVERSITY

Pyrolysis treatment device for solid waste treatment

The utility model relates to the technical field of solid waste pyrolysis treatment, and discloses a pyrolysis treatment device for solid waste treatment, the pyrolysis treatment device comprises a pyrolysis furnace, the upper end of the pyrolysis furnace is fixedly connected with a mixing tank, and the upper end of the mixing tank is fixedly connected with a crushing box; according to the solid waste crushing device, the crushing rollers in the crushing box are arranged, when the crushing rollers are driven by a servo motor to rotate, the other crushing roller can synchronously and reversely rotate through the meshing effect of a linkage gear, so that solid waste is subjected to extrusion and shear force between the two crushing rollers, large solid waste can be crushed into small particles through extrusion and shear force, and the crushing effect is good. Meanwhile, solid waste with high toughness can be effectively cut off by shear force, so that the solid waste with different sizes and properties can be crushed, materials can be more uniformly heated in the pyrolyzing furnace, the problems that heat in large solid waste blocks is difficult to transfer and air flow is blocked due to local accumulation of small solid waste blocks are solved, and the pyrolyzing efficiency is improved.
Owner:ANHUI XINYIAN ENVIRONMENTAL PROTECTION MATERIALS CO LTD

Preparation method of manganese slag-based catalyst and application thereof

The application discloses a preparation method of a manganese residue-based catalyst and application thereof, and belongs to the technical field of solid waste treatment. The application comprises the following steps: manganese residue is added into water and uniformly mixed to obtain a manganese residue turbid liquid; a soluble manganese salt solution and a potassium permanganate solution are mixed, and then added into the manganese residue turbid liquid to perform a hydrothermal reaction; and after washing and drying, a manganese residue-based catalyst is obtained. The catalyst prepared by using the manganese residue as a main raw material can efficiently degrade common organic wastewater, and the purpose of "waste treatment by waste" is achieved. In addition, the raw material manganese residue and the modifier are cheap and easy to obtain, the preparation method is simple, the production cost is low, and the application is beneficial to industrial popularization and use.
Owner:GUANGXI UNIV FOR NATITIES

Method and equipment for leaching and recycling aluminum electrolysis waste carbon cathode

The invention provides a method and equipment for leaching and recycling an aluminum electrolysis waste carbon cathode. The method relates to the field of solid waste treatment, and comprises the following steps: S1, crushing the recycled waste aluminum electrolysis waste carbon cathode by using a jaw crusher, further finely grinding to a certain mesh number by using a vibration mill, and drying for later use; s2, the ground waste carbon cathode is weighed, a certain amount of water is added, the mixture is placed in an ultrasonic instrument at the normal temperature to react for a period of time, and washing residues and washing liquid are obtained through filtering; s3, a sodium hydroxide solution with a certain concentration is added into the washing residues to be mixed, and the mixture is placed in an ultrasonic instrument to react for a period of time at a certain temperature. Compared with a traditional leaching method, the method has the advantages of being high in efficiency and good in effect, the leaching rate of valuable substances is greatly increased, and the valuable substances are recycled through a series of steps such as washing, alkaline leaching, acid leaching and recycling. The method realizes efficient recovery of useful components in the waste carbon cathode, does not produce solid waste and wastewater in the process, is environment-friendly, and realizes effective utilization of resources and harmless treatment of dangerous solid wastes.
Owner:FENGCHENG JIULING LITHIUM IND CO LTD

Multi-purpose comprehensive utilization system for flue gas of garbage incinerator

The invention discloses a multipurpose comprehensive utilization system for flue gas of a garbage incinerator, and relates to the technical field of solid waste treatment and resource recovery. After steam generated by a waste heat boiler drives a generator set, medium-temperature and low-temperature flue gas is sequentially guided into a sludge drying system for heat energy coupling utilization; in the purification section, a synergistic removal process is adopted, and trapped pollutants are converted into ammonium sulfate fertilizer raw materials while acid gas and dioxin are efficiently removed; finally, the fly ash rich in heavy metal is guided into a melting system, and inert building material aggregate is formed through high-temperature vitrification. According to the integrated system, the limitation of traditional quality-divided treatment is broken through, the three targets of deep recovery of flue gas waste heat, collaborative resource conversion of pollutants and safe treatment of fly ash are achieved, the operation cost is greatly reduced, additional economic values are created, and a win-win comprehensive solution of environmental benefits and economic benefits is provided for a waste incineration plant.
Owner:ZHENGZHOU DONGXING ENVIRONMENTAL ENERGY CO LTD

Washing-free sintering resourceful treatment method for household garbage incineration fly ash

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.
Owner:蔡玉春

Efficient utilization production process of iron-containing ore powder and slag powder

PendingCN121227962AWater savingIron powder
The invention relates to the technical field of ferrous metallurgy and solid waste treatment, in particular to an efficient utilization production process of iron-containing ore powder and slag powder, which comprises the following steps: preheating the iron-containing ore powder ground by a grinder by a preheater, and feeding the iron-containing ore powder into a reduction furnace; a fan provides aerodynamic force, high-temperature gas obtained after air is preheated by a hot-blast stove and hydrocarbon such as pulverized coal sprayed from a pulverized coal feeding port are combusted, and generated reducing gas such as CO and H2 enters a reduction furnace through an annular exhaust outlet of a hearth and is subjected to a reduction reaction with iron-containing ore powder entering the reduction furnace and the high-temperature gas such as CO and H2 at high temperature; and reducing into metal iron powder and slag. Iron ore powder does not need to be made into prefabricated lump ores such as pellets and sinter, and dependence of a blast furnace on metallurgical coking coal is avoided; iron ore powder can be directly used for producing metal iron powder, water is saved, and the risk that high-temperature molten iron explodes when encountering water is eliminated; green hydrogen can be used as a reducing agent, and the method is a preferable scheme in the ferrous metallurgy industry.
Owner:BEIDOU (TIANJIN) NEW MATERIAL TECH CO LTD

Cucurbituril-based supramolecular organic framework material as well as preparation method and application thereof

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).
Owner:INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI

Comprehensive treatment and cyclic utilization system for waste of pig farm

The invention belongs to the technical field of livestock and poultry breeding waste treatment, and discloses a pig farm waste comprehensive treatment and cyclic utilization system which comprises the steps of obtaining various wastes of a pig farm, collecting multi-dimensional data, matching an optimal working condition mode in combination with three-dimensional situation evaluation, and generating a global collaborative instruction set; performing cross-unit predictive collaboration through a causal-parameter chain, performing waste grading treatment and resource preliminary conversion to obtain a treatment intermediate product and a resource primary product, and generating operation feedback data; performing efficiency-income two-dimensional evaluation, when the efficiency does not reach the standard, calling a historical recovery file to generate an adaptive recovery strategy, and generating an update state report; scheduling operation is executed through resource-load dynamic matching logic, reverse traceability optimization processing parameters are carried out, resource products are obtained, and a circulation benefit report is generated; and fusing the multi-cycle cyclic benefit report and the operation feedback data, generating a three-dimensional optimization suggestion, updating the core rule base, and forming a closed-loop link.
Owner:HEBEI ZHENGNONG ANIMAL HUSBANDRY CO LTD

Stirring and crushing cutter with good grinding effect and kitchen waste treatment equipment using cutter

The utility model relates to the technical field of kitchen waste treatment, in particular to a stirring and smashing cutter with a good grinding effect and kitchen waste treatment equipment using the cutter, the stirring and smashing cutter comprises a rotating cutter shaft and a smashing auxiliary cutter, the rotating cutter shaft is provided with a smashing main cutter, and when the rotating cutter shaft drives the smashing main cutter to rotate, the smashing auxiliary cutter is driven by the rotating cutter shaft to rotate. Materials can be stirred and preliminarily cut up, large kitchen garbage is scattered and cut into small blocks, the materials are cut up through the relative movement between the smashing main cutter and the first auxiliary cutter and the contact of the cutting edges of the smashing main cutter and the first auxiliary cutter, and a grinding gap is formed between the smashing main cutter and the first auxiliary cutter, so that the kitchen garbage can be ground more conveniently. The grinding gap enables the materials to be further extruded and rubbed between the crushing main cutter and the first auxiliary cutter after the materials are cut up, so that fine grinding of the materials is achieved, the size of the materials can be further refined in the grinding process, the processing efficiency of the materials can be improved, and the efficiency of the follow-up processing technology can be improved.
Owner:FOSHAN SHUNDE AOGEWEI ELECTRIC APPLIANCE MFG CO LTD

Method for preparing environment-friendly magnesium aluminate spinel raw material by utilizing industrial solid waste

PendingCN122059696ASlagPhysical chemistry
The invention discloses a method for preparing an environment-friendly magnesium aluminate spinel raw material by utilizing industrial solid wastes, and relates to the technical field of magnesium aluminate spinel raw material production. The method comprises the following steps: a, raw material synergistic purification treatment: crushing magnesium slag into coarse particles, and mixing the coarse particles with aluminum ash raw powder which is not subjected to desalting treatment according to a mass ratio of (1-3): 1 to obtain a mixture; the mixture is subjected to first heat treatment at the temperature of 450-650 DEG C in a non-oxidizing atmosphere, and heat preservation is conducted for 1-3 h; according to the method, two industrial solid wastes, namely the magnesium slag and the aluminum ash, are subjected to direct synergistic heat treatment in a non-oxidizing atmosphere, and chloride impurities in the aluminum ash are used for synchronously removing free calcium oxide on the surface of the magnesium slag and removing part of soluble salt of the aluminum ash in the volatilization and migration process, so that coupling purification of treating wastes with wastes is realized; the problem that various solid wastes need to be subjected to complex pretreatment in a traditional process is solved, the process is simplified, the impurity removal efficiency is improved, and meanwhile the risk of environmental pollution caused by solid waste stockpiling or landfill is reduced.
Owner:JIANGSU TIANDONG NEW MATERIAL TECH CO LTD

Preparation method and application of modified salicornia biochar

The invention discloses a preparation method of modified salicornia biochar, and belongs to the technical field of environmental protection. The preparation method comprises the following steps: washing, drying and crushing salicornia europaea serving as a raw material, mixing the salicornia europaea with a nitrogen source modifier according to a certain mass ratio, adding water, uniformly stirring, dipping and drying; the nitrogen source modifier is one or more of urea, melamine or thiourea; then carrying out pyrolysis and carbonization, grinding, washing and drying the obtained carbon material, and finally preparing the modified salicornia biochar. The prepared modified salicornia biochar is used for adsorbing organic matters in sewage or wastewater, can effectively remove dissolved organic carbon (DOC, 86.34%), UV254 (89.33%) and chromaticity (CN, 94.74%) in an adsorption experiment of livestock and poultry biogas slurry, and shows excellent adsorption performance. The method follows the principle of treating waste with waste, the salicornia europaea waste is effectively treated, the obtained biochar has good application potential in the aspect of sewage and wastewater treatment, and high-value utilization of the waste is achieved.
Owner:SICHUAN AGRI UNIV