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1211results about How to "Emission reduction" patented technology

Vehicle idling start and stop control system and method

The invention discloses a vehicle idling start and stop control system and method. The control system judges whether a vehicle has idling start and stop conditions by monitoring the water temperatureof an engine, the capacity of a storage battery, a safety belt and other information, judges whether the vehicle has conditions of stopping the engine by monitoring the rotating speed of the engine, the speed of the vehicle, the brake air pressure and other conditions, and judges whether the vehicle has conditions of starting the engine by monitoring the gear of a gearbox, the speed of the vehicle, a hand brake and other information. When the relevant conditions are met, start and stop work signals are sent to the engine though a CAN bus. In order to guarantee the reliability of frequent startand stop of the engine, the system strengthens flywheel gear rings of a starter and the engine. In order to ensure that the battery does not lose power, a storage battery capacity sensor is added tothe system on the basis of increasing the capacity of the storage battery, and the idling start and stop are allowed when the state of charge (SOC) of the storage battery satisfies a safe starting threshold. The idling start and stop control system has advantages of low cost and high reliability, and is especially suitable for commercial vehicles.
Owner:SHAANXI AUTOMOBILE GROUP

Negative plate as well as preparation method and application thereof

The invention belongs to the technical field of batteries, and particularly relates to a negative plate and a preparation method and application thereof. The negative electrode plate comprises a negative electrode current collector and a negative electrode material layer arranged on at least one side surface of the negative electrode current collector, the negative electrode material layer comprises a negative electrode active substance, a negative electrode conductive agent and a composite binder, and the composite binder comprises carboxymethyl cellulose lithium and siloxane. The negative electrode plate has relatively high stripping force or crack resistance, and the first coulombic efficiency or cycle stability of the battery can be effectively improved when the negative electrode plate is applied to the battery.
Owner:EVE POWER CO LTD

Waste plastic grading carbonization device and waste plastic treatment method

The invention relates to the technical field of waste plastic treatment, in particular to a waste plastic grading carbonization device and a waste plastic treatment method. The waste plastic grading carbonization device comprises a feeding hopper, a crushing device, a grinding device, a screening device, a catalyst self-adaptive proportioning device, a first spiral discharging machine, a first-stage carbonization chamber, a second-stage carbonization chamber, an activation chamber, a second spiral discharging machine, a solid product collecting device, a liquefaction device, a liquefied product collecting device, a cooling water circulating device and a third spiral discharging machine, a material returning bin and a tail gas treatment device. According to the invention, through the collaborative innovation of'grading carbonization 'and'catalyst self-adaptive proportioning device', the problems of incomplete and non-uniform carbonization of the waste plastics, inadequate utilization of gas products and the like in the pyrolysis process of the waste plastics are solved, and an industrial feasible path is provided for chemical recovery of the waste plastics; the device is reasonable in overall structural design and high in treatment energy efficiency, and continuous, sufficient and efficient pyrolysis and high-value conversion of the waste plastics are achieved.
Owner:GANTRY LAB

A carbonated hardened low-calcium cement and methods of making and hardening the same

The present application aims at the problems of excessive consumption of traditional cement limestone resources, excessive energy consumption and high carbon emission, and provides a carbonated hardened low-calcium cement and a preparation and hardening method thereof, which is a hardening method for curing low-calcium cement by CO2 carbonation. The mass percentage composition of cement raw material components is: limestone: 60-70%, sandstone or clay or silica ash: 15-25%, phosphogypsum, fluorogypsum or desulfurization gypsum: 5-25%, component A: 0.5-2%. Component A is composed of the following raw material components in mass percentage: fluorite 0-50%, barium slag: 0-50%, lithium slag 0-50%, wood ash 0-50%, industrial sodium carbonate 0-30%. The composition design of carbonated hardened cement clinker minerals is C2S: 10-90%, C5S2$: 10-90%, C$: 0-5%, C4A3$: 0-10%, etc. In the present application, the limestone required for the cement clinker is lower than that of ordinary Portland cement clinker, the calcination temperature is reduced by 200-350 DEG C than that of ordinary Portland cement clinker, and the energy consumption and carbon emission are significantly lower than those of Portland cement; the low-calcium cement is hardened by CO2 carbonation curing, which can make the cement obtain excellent mechanical properties within 2 hours.
Owner:DALIAN UNIV OF TECH

Method for preparing coal-saving agent by using metal processing wastewater

ActiveCN117165339BImprove combustion conditionsBurn fullyLiquid carbonaceous fuelsCombustionWastewater
The application discloses a method for preparing a coal-saving agent by using metal treatment wastewater, and comprises the following steps: preparing the coal-saving agent by compounding metal treatment wastewater, penetration and dispersion components, emulsification components, catalytic components and oxidation components; and spraying 0.05%-0.1% of the coal-saving agent in the coal, so that the initial combustion temperature of the coal is reduced by 20-50 DEG C, the burnout temperature is reduced by 20-60 DEG C, and the carbon content of the ash is reduced by more than 5%. The application applies the metal treatment wastewater to the production of the coal-saving agent, changes waste into treasure, promotes the recycling of resources, and realizes harmless treatment of resources.
Owner:SHANDONG ZHONGSEN NEW MATERIAL CO LTD

SCR (Selective Catalytic Reduction) denitration system of corner tangential coal-fired boiler and ammonia injection grid zoning control method thereof

The embodiment of the invention provides a corner tangential coal-fired boiler SCR denitration system and an ammonia injection grid partition control method thereof, and the method comprises the steps that an ammonia injection grid is divided into a plurality of independently-controlled large areas based on the combustion characteristics and flue gas flow characteristics of a coal-fired boiler, and each large area is internally provided with a plurality of ammonia injection grid injection points; a manual valve and an automatic adjusting valve are arranged in each large area, the ammonia spraying amount of a spraying point of a single ammonia spraying grid is adjusted through the manual valve, and the total ammonia spraying amount of the whole large area is dynamically adjusted through the automatic adjusting valve; and the NOx concentration and the ammonia escape concentration corresponding to each large area are monitored in real time, and the ammonia spraying amount of each large area is dynamically optimized through a control algorithm based on the boiler operation load change, so that the ammonia spraying distribution of each large area is matched with the NOx concentration distribution.
Owner:华能(浙江)能源开发有限公司长兴分公司 +1

Data center combined cooling heating and power supply system based on mixed hydrogen energy and control method

The invention discloses a data center combined cooling heating and power supply system based on mixed hydrogen energy and a control method thereof, and the system comprises a hydrogen source supply and storage module which is used for inputting hydrogen for power generation, a power generation and energy supply module which is used for converting the hydrogen into electric energy, and a DC micro-grid module which is used for providing the electric energy for a data center. The heat management and application module is used for recycling and applying heat generated during power generation, and the control and protection module is used for controlling the modules. According to the invention, hydrogen energy efficient power generation, waste heat cascade recovery and intelligent scheduling are realized through modular cooperation, the problems of high carbon emission, response delay and energy waste in the prior art are solved, and the system has the advantages of significantly reducing carbon emission, optimizing electric energy use efficiency, improving power supply continuity and energy utilization rate, and simultaneously realizing combined supply of cooling, heating and power.
Owner:上海舜华新能源系统有限公司

A method for dust removal from pulverized coal

This invention relates to the field of pulverized coal conveying and dust removal technology, specifically to a pulverized coal dust removal method, comprising: S1: Constructing a dust removal system: setting up a dust cover on a conveyor belt, setting up a pressure-reducing chamber on the dust cover, installing wear-resistant baffles at the bottom of the dust cover, and installing a dust curtain inside the dust cover; installing a dust collector at the top of the dust cover; S2: Coal conveying and primary dust removal: starting the conveyor belt to transport coal, the coal falls onto the conveyor belt, and the generated dust-laden gas forms a local high-pressure zone under the obstruction of the dust curtain, causing a portion of the dust-laden gas to undergo primary filtration through the filter components on the pressure-reducing chamber; S3: Secondary dust removal: the remaining dust-laden gas in the dust cover is sucked into the dust collector, the dust-laden gas enters below the liquid surface of the dust collector, causing the pulverized coal particles to settle and form coal slurry, which is then transported outside the dust collector, and the purified gas is discharged through the outlet. This method achieves closed-loop control of the entire process from source dust suppression to end-of-pipe treatment through two-stage synergistic dust removal, improving the dust removal effect.
Owner:国家能源集团泰州发电有限公司 +1

Method for producing alkaline magnesium pellets and alkaline magnesium pellets

PendingCN121931335ASolve balling problemSolve the problem of not being able to be used as raw material for pelletsGrain treatmentsFlue gasEngineering
The invention provides a method for producing alkaline magnesian pellets and the alkaline magnesian pellets. The method comprises the steps that S1, limonite powder and dolomite powder are continuously blended according to a preset proportion to form a pre-blended mixture, and the pre-blended mixture is continuously fed into a dry method vertical roller mill; s2, extruding, shearing and grinding the pre-prepared mixture in a dry-method vertical roller mill, and meanwhile, introducing high-temperature separation flue gas to perform winnowing on the ground material to obtain single mixed powder; s3, directly adding water into the single mixed powder, mixing and pelletizing to obtain green pellets; and S4, the green pellets are fed into a chain grate-rotary kiln system to be roasted, and the alkaline magnesian pellets are obtained. The problems that in the production process of producing the alkaline magnesium pellets from the limonite powder and the dolomite powder, the number of raw material processing procedures is large, energy consumption is high, and mixing is insufficient are effectively solved. And the effects of improving the pellet quality, saving energy, reducing consumption and reducing carbon emission are achieved.
Owner:UNIV OF SCI & TECH BEIJING

Direct-fired machine with flue gas recovery function

The direct-fired machine comprises a direct-fired machine body, a combustor, a recycling assembly and a drainage assembly, the combustor is arranged on one side of the direct-fired machine body, the recycling assembly comprises a conveying pipe arranged on one side of the direct-fired machine body, a box body assembly is arranged at one end of the conveying pipe, a filtering piece is arranged in the box body assembly, and the filtering piece is arranged on the other side of the direct-fired machine body. A water collecting pipe is arranged at the bottom of the box body assembly and arranged at the air inlet end of the combustor. Through the design of the combustor, the conveying pipe, the box body assembly, the filtering piece, the water collecting pipe and the water draining assembly, the arranged combustor has a smoke recycling function, smoke exhausted by the direct-fired machine is recycled through the conveying pipe in the using process, dust and particulate matter in the smoke are filtered through the filtering piece, and the dust and particulate matter in the smoke are filtered through the water collecting pipe; and then the flue gas is conveyed into the combustor, so that the combustor sucks the air and the flue gas and mixes the air and the flue gas, the concentration of oxygen in the air per cubic meter is reduced, and finally emission of nitric oxide is reduced.
Owner:李天聪

Process method for processing wedge-shaped locking block and clamp thereof

The application discloses a kind of process method and fixture of processing wedge type locking block, method includes S1 preparation plate material;S2 blanking to plate material;S3 heat treatment plate material as blank;S4 numerical milling processing 1: numerical milling blank, drilling forms light hole and thread bottom hole, thread bottom hole tapping processing;S5 numerical milling processing 2: cutting blank;S6 surface passivation treatment;S7 to final inspection;For the fixture for processing wedge type locking block includes clamping seat, pressing plate, first locking screw and second locking screw, clamping seat is provided with clamping through slot, first threaded hole and mounting hole, pressing plate is provided with second threaded hole;By improving process method, multiple process contents are combined, clamping frequency is reduced, semi-finishing requirement in process is increased, no burr can be generated in process, because clamping frequency is reduced, part surface quality is improved;Raw material utilization is higher, is half of all materials of original process scheme, total amount of waste gas emission is reduced by half compared with original process scheme.
Owner:CHENGDU MEITE AVIATION MFG CO LTD

Low-nitrogen combustion device for flue gas recirculation

The utility model relates to the technical field of combustion equipment, and provides a low-nitrogen combustion device for flue gas recirculation, which comprises a circulation frame, a gas delivery pump and a secondary gas mixing mechanism, the circulation frame is provided with a venturi mixing tube group, the venturi mixing tube group is communicated with a uniform gas delivery mechanism for flue gas delivery, the gas delivery pump is mounted on the circulation frame, and the secondary gas mixing mechanism is mounted on the circulation frame. The gas outlet end of the gas conveying pump is communicated with one end of the Venturi mixing tube set through a gas conveying bent tube, and the secondary gas mixing mechanism is installed on the circulation frame, arranged in the Venturi mixing tube set in a penetrating mode and used for conducting secondary acceleration and mixing on gas in the Venturi mixing tube set. The low-nitrogen combustion device for flue gas recirculation solves the problem that in the prior art, when a low-nitrogen combustion device for flue gas recirculation circulates flue gas, the mixing efficiency of the flue gas and air is poor.
Owner:SHANDONG JUJIA ENVIRONMENTAL PROTECTION TECH CO LTD

A hot tank exhaust liquefaction structure and a pure hot water machine with the same

The utility model discloses a kind of hot tank exhaust liquefaction structures, including condensate backflow member being fixed on hot tank, steam exhaust pipe being installed on condensate backflow member, condensate backflow member is provided with steam-liquid blending cavity, steam exhaust pipe is provided with the steam passage of intercommunication steam-liquid blending cavity, the inlet end of steam passage is communicated with the inner cavity of hot tank by steam-liquid blending cavity, steam-liquid blending cavity inner wall and steam exhaust pipe outer wall form condensate space, steam converges to form liquid in condensate space inner wall and is backflowed to hot tank by steam-liquid blending cavity. With the effect that hot tank can be effectively pressure-relieved, reduce steam exhaust amount when hot tank pressure-relieved.
Owner:NINGBO DINGAN APPLIANCE

Pig farm sewage treatment system and method

The invention discloses a pig farm sewage treatment system and method, and belongs to the technical field of farm sewage treatment, the pig farm sewage treatment system sequentially comprises a water collecting tank, a dosing mixing tank, a solid-liquid separator, an adjusting tank, a HiRAD anaerobic device, a reaction sedimentation tank, a water quality adjusting tank, an SBR biochemical tank, a C-MBR biochemical tank, a disinfection tank and a reuse water tank; by means of the system and the method, sewage discharged by the pig farm through the liquid manure technology can be effectively purified, organic carbon in the sewage can be converted into methane to the maximum extent, the methane becomes a high-quality biomass resource, waste is turned into wealth, emission of toxic gas is avoided, it is guaranteed that the pig farm is clean and sanitary, and the economic benefits of the pig farm are improved. Infection and spreading of diseases are avoided; meanwhile, a large number of nutrient sources, such as nitrogen and phosphorus, in the sewage are converted into organic fertilizer; the purified wastewater is deeply cleaned, so that the recycling standard is met, and the cyclic utilization of resources is realized.
Owner:CHENGDU UNIV

Double-piston mechanism for internal combustion engine and internal combustion engine

The invention belongs to the technical field of internal combustion engine power devices, and discloses a double-piston mechanism for an internal combustion engine, which comprises a cylinder body, and more than one cylinder is arranged in the cylinder body; an air inlet seat and an air outlet seat are installed on the upper portion and the lower portion of the cylinder body respectively, an air inlet pipe and an air outlet pipe are arranged in the air inlet seat and the air outlet seat respectively, and an air inlet channel and an air outlet channel are arranged in the air inlet pipe and the air outlet pipe respectively. A control device for gas distribution is arranged at the corresponding position of each cylinder; a high-pressure oil pump is arranged outside the cylinder body, and the high-pressure oil pump is communicated with the oil sprayer through a high-pressure oil pipe; a piston assembly I and a piston assembly II are symmetrically arranged in each cylinder body, and a bevel gear set I and a bevel gear set II which are matched with the piston assembly I and the piston assembly II to transmit power are further arranged in each cylinder body. The power performance of the internal combustion engine can be improved through the two piston assemblies, the device is small in size and light in weight, and single-machine fuel consumption and operation cost are effectively reduced.
Owner:沈万伦

Multi-stage planning method and system for regional integrated energy system under future extreme climate

The application provides a multi-stage planning method and system for a regional comprehensive energy system under future extreme climate, future extreme weather prediction data is obtained according to historical extreme weather data, the comprehensive energy system is planned according to the obtained future extreme weather prediction data, the planning result is more reasonable, and the economy and safety of the system are increased; moreover, the growth of regional load is considered, a multi-stage planning model of the regional comprehensive energy system in different time periods is established, and the situation that device capacity redundancy or load demand cannot be met in the system operation process is solved; the carbon capture device and the electric-to-gas device are considered in the constraint condition, the carbon emission of the system is reduced; meanwhile, the demand response is considered, and the flexibility of the regional comprehensive energy system is increased.
Owner:SHANDONG JIANZHU UNIV

A gas and air mixing device and method incorporating an ejector

ActiveCN117989537Bfully premixedemission reduction
The application discloses a kind of gas and air mixing device and mixing method combined with injection, gas flow passage is provided in the mixing device, including gas nozzle and injection structure in sequence according to the direction of gas flow passage, the injection structure is used to carry out partial premixing with gas and be injected air, including in sequence communication suction chamber, mixing section, diffuser section, outlet section, the gas nozzle is communicated with suction chamber, outlet section is provided with swirl device for generating swirl.The application utilizes the momentum of gas jet to inject atmospheric air, carries out partial premixing in advance in injection structure, realizes the sufficient premixing of gas and be injected air before being ejected, mixing distance is short, has the effect of helping to reduce nitrogen oxides emissions generated in industrial combustion process, conforms to the development trend of environmental protection.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

A carbon footprint-based energy-saving method for elevator control

ActiveCN119100218BReduce energy consumptionImprove passenger efficiencyElevatorsTransmission
This invention discloses an elevator energy-saving method based on carbon footprint. The invention utilizes a cloud platform, an elevator system, a visual recognition monitoring system, and a carbon footprint measurement and control system, and includes the following steps: using the visual recognition monitoring system to perform facial recognition and obtain the identity information of different users; the visual recognition monitoring system acquiring the elevator travel trajectory set of each user over a previously set period; the carbon footprint measurement and control system using a carbon footprint algorithm to statistically analyze and obtain the current carbon footprint data of each user; based on the acquired carbon footprint data of all users, the carbon footprint measurement and control system activating the base station function of the elevator system during a corresponding set time period; and the carbon footprint measurement and control system performing fine-grained control of various carbon consumptions of the elevator system based on the acquired carbon footprint data of all users. This invention can effectively reduce the energy consumption and carbon emissions caused by elevator operation.
Owner:GUANGZHOU GUANGRI ELEVATOR IND

A non-oriented silicon steel coating spraying device

The utility model relates to the technical field of silicon steel production and processing, disclose a kind of non-oriented silicon steel coating spraying device, including shell, relative arrangement is provided with smearing subassembly in the shell, the shell bottom is provided with recovery subassembly, the inside of shell is provided with spray device, the inside of shell is fixedly connected with not less than one guide roller, the smearing subassembly includes the slide rail of fixed connection in the inner wall of shell top, shell side wall is fixedly connected with electric push rod, the output end of electric push rod is fixedly connected with support plate, the bottom of support plate is fixedly connected with not less than one telescopic link, spring is equipped on the surface of telescopic link. In the utility model, through the structural setting of smearing subassembly, it solves the problem that coating is difficult to evenly cover the surface of silicon steel after the surface of silicon steel is sprayed in the prior art, coating stripe defect or the phenomenon of missing coating is prone to occur, and product quality is difficult to guarantee.
Owner:湖南宏旺新材料科技有限公司

A multi-layer superimposed cylinder suction type vortex hydroelectric power generation device system

The application discloses a kind of multilayer superimposed cylinder suction type vortex hydroelectric generation device systems, belong to hydroelectric generation equipment technical field, it is related to new clean energy innovation technology.The system uses multistage multilayer superimposed lever mechanics structure, the layer of power generation unit, interval distance and water turbine impeller diameter are within the scope of the patent protection;Based on fluid mechanics and Bernoulli principle, construct by high to low by wide to narrow "tapered flow guide-vortex acceleration-suction gain "tornado type "vortex flow technical scheme, three-stage potential energy conversion system, by continuity equation, vortex dynamics etc. Theory support, realize the efficient progressive conversion of water flow potential energy to kinetic energy.Single power generation unit is composed of vortex generator, mixed-flow water turbine impeller and vertical (vacuum) siphon pipe, through large-diameter water turbine multistage multilayer superimposed lever amplification effect, realize single water potential energy after superposition times conversion and multiple reuse, adapt to multi-field hydroelectric generation scene.The application deeply integrates the core principles of multi-disciplinary and new energy innovation highlights, solves the problem of low efficiency, low power expansion, low energy utilization rate of traditional water turbine single-layer device, and has significant energy-saving and emission-reducing benefits, social value and economic benefits.
Owner:李东升

A multi-agent game collaborative planning method for airport comprehensive energy system under physical-information-market coupling

PendingCN122288198AReduce planning and implementation difficultiesImprove absorption capacityIntegrated energy systemSimulation
This invention discloses a multi-agent game-theoretic collaborative planning method for airport integrated energy systems under physical-information-market coupling. The invention constructs a physical-market coupling model of the interaction between the integrated building energy system and the smart grid; defines independent decision-making entities such as the smart grid, multiple integrated building energy system operators, and renewable energy providers, and their multi-period objective functions; divides the planning period into multiple stages, establishing a dynamic game framework considering long-term investment and short-term operational coordination; uses subgame refined Nash equilibrium as the solution objective, and solves the inter-agent game strategies through mathematical programming and equilibrium constraints, and multi-agent reinforcement learning algorithms; generates multi-period equipment investment time-series diagrams for multi-agent collaboration and outputs typical daily scheduling schemes. The advantages of this invention are that it solves the problem of multi-agent interest conflicts and long-term / short-term decision coupling in airport integrated energy systems, reduces total system cost and carbon emissions, avoids redundant investment, and improves the renewable energy absorption capacity.
Owner:ZHEJIANG UNIV

Synthetic leather composite silica gel humanoid robot simulation skin, and preparation method and application thereof

PendingCN122584773AGood abrasion resistance and scratch resistanceReduce mold cost
The application discloses synthetic leather composite silica gel humanoid robot simulation skin and a preparation method and application thereof, and belongs to the humanoid robot surface material application field. The skin comprises, from outside to inside, a synthetic leather layer with bionic texture, a water-based polyurethane interface layer with a thickness of 0.03-0.06 mm, and a silica gel layer. The water-based polyurethane interface layer is composed of a water-based polyurethane-silicone block copolymer with a hydroxyethyl acrylate end cap and a side chain containing a vinyl group. In the preparation, the water-based polyurethane interface layer is first formed on the back of the synthetic leather, then a platinum gold catalyst is sprayed on the interface and a mold, and finally the addition type liquid silica gel containing a silicon hydrogen bond is compounded in the mold and is cured at 24-26 DEG C and 40%-60% humidity. Peeling damage is realized to occur in the silica gel body; meanwhile, the interface layer and the synthetic leather cooperatively constitute a double barrier, so that the silicon oil exosmosis is avoided. The product has strong comprehensive advantages, and the process is environment-friendly and low in cost.
Owner:HEFEI FLEXIBLE KETIAN ROBOT MATERIAL CO LTD

Logistics vehicle and cargo intelligent matching system and method based on carbon footprint

ActiveCN122022639Aemission reductionTaking into account logistics efficiencyData processing applicationsLogistics managementCarbon footprint
The invention discloses a carbon footprint-based logistics vehicle and cargo intelligent matching system and method, and relates to the technical field of logistics vehicle and cargo matching, and the method comprises the steps: analyzing the adaptation degree between a vehicle and a target cargo, and obtaining a candidate vehicle; obtaining a logistics trajectory set, analyzing energy consumption distribution conditions of candidate vehicles under different logistics trajectories in the logistics trajectory set, analyzing carbon emission uncertainty degrees of the candidate vehicles under the different logistics trajectories, and evaluating carbon emission steady conditions of the candidate vehicles in the different logistics trajectories; acquiring target track carbon emission data of different candidate vehicles, analyzing logistics matching degrees of the different candidate vehicles and the target goods, and determining a target vehicle; according to the method, the target logistics track of the target vehicle is obtained, and the target cargo is subjected to logistics transportation according to the target logistics track, so that the carbon emission in the transportation process of the target cargo is greatly reduced, the logistics efficiency is also considered, and energy conservation and environmental protection are truly realized in the field of traffic transportation.
Owner:HANGZHOU CHENGFENGLAI DIGITAL TECH CO LTD +1

A quaternary solid waste-based soil stabilizer for base layer, and a preparation method and application thereof

The application discloses a quaternary solid waste-based soil stabilizer (GSCP) for a base layer, which is composed of slag (GGBFS), steel slag (SSA), calcium carbide slag (CS) and phosphogypsum (PG) and has a weight ratio of GGBFS:SSA:CS:PG=56:24:12:8. The stabilizer forms C-S-H colloid and ettringite (AFt) through alkaline activation and sulfate activation, does not need to add cement or chemical activator, is used for stabilizing silty clay and steel slag mixed soil, and significantly improves the unconfined compressive strength, splitting tensile strength, water stability and freeze-thaw resistance. Compared with a traditional cement-based stabilizer, the application reduces carbon emission by 82% and cost by 31.25%, provides a low-carbon and economical solution for road engineering, and is suitable for the base layer and the subbase layer of a secondary road or above.
Owner:HUNAN UNIV

A catalyst for the hydrogenation of carbon dioxide to low-carbon olefins, its preparation method and application

PendingCN122499832Areduce usagereduce pollution
This invention belongs to the field of catalyst preparation technology, specifically disclosing a catalyst for the hydrogenation of carbon dioxide to low-carbon olefins, its preparation method, and its application. The preparation method is as follows: An aqueous solution of the target metal salt is prepared, a precipitant is added for co-precipitation, and the solution is filtered, washed, dried, and calcined to obtain the corresponding metal oxide. An aluminum source, triethyl phosphate, a silicon source, and an imidazole derivative template agent are added to deionized water, and mixed to form a concentrated gel. The resulting concentrated gel system is heated to crystallize without the addition of a mesoporous pore-forming agent. The crystallized product is separated, washed, dried, and calcined to obtain a molecular sieve. The metal oxide and the molecular sieve are physically mixed and ground at a mass ratio of 1:10 to 10:1 to obtain a composite catalyst. This invention, through the synergistic effect of triethyl phosphate and the concentrated gel system, induces a non-classical growth mechanism to achieve multi-level pore self-assembly, without the need for additional mesoporous template agents, and significantly reduces the amount of template agent used. The composite catalyst exhibits mild acidity and excellent diffusion performance.
Owner:LIAOCHENG UNIV

Waste heat boiler

The utility model belongs to the technical field of waste heat utilization equipment, and particularly relates to a waste heat boiler which comprises a waste heat boiler body and supporting legs, a waste heat recovery structure is arranged above the waste heat boiler body and comprises a filtering mechanism and a recovery mechanism, and the filtering mechanism comprises a supporting plate, a gas guide pipe, an installation plate, a fixing plate and a rotating rod. The top of the supporting plate is connected with the bottom of the recycling box, one end of the waste heat boiler communicates with one end of the gas guide pipe, and the two ends of the mounting plate are connected with the inner wall of the recycling box. According to the waste heat boiler, after flue gas enters the recycling bin, the flow speed is reduced, the retention time is prolonged, the filter screen can effectively intercept solid impurities in the flue gas, pollutant emission is reduced, environmental pollution is avoided, impurities accumulated on the surface of the filter screen can be automatically removed, blocking is prevented, and the filtering efficiency is maintained; and meanwhile, the filter screen can be quickly and conveniently disassembled and assembled, and the working efficiency of the waste heat boiler is improved.
Owner:SHANGHAI HUANJU ENVIRONMENTAL PROTECTION ENG CO LTD

Method for deeply recovering phosphorus and vanadium from molten iron containing phosphorus and vanadium

The invention discloses a method for deeply recovering phosphorus and vanadium from molten iron containing phosphorus and vanadium, which comprises the following steps: treating the molten iron containing phosphorus and vanadium by adopting an oxygen blowing method, in the oxygen blowing method, directly blowing mixed gas into the molten iron by utilizing a spray gun, the volume concentration of the oxidizing gas is 18%-50%. The method has the advantages of improving the recovery rate of phosphorus and vanadium, reducing the smoke amount and the like, and also has the characteristics of low cost, short process, environmental friendliness, less carbon emission, high heat utilization rate, full utilization of resources and the like.
Owner:CHINA ENFI ENG CORP +1

Glass cleaning machine with water circulation system

ActiveCN224525555UImprove cleaning qualityEfficient and orderly cleaning
The utility model relates to glass cleaning technical field, concretely relates to a glass cleaning machine with water circulation system, the cleaning machine includes support, and the support has a plurality of hollow water storehouse and is composed of circular ring structure, and the water storehouse sets up water inlet, rotates and connects directional water valve, and the rear side of water storehouse is connected with the ash blocking layer, and the ash blocking layer is connected with the water washing layer and both are respectively equipped with sieve hole, and the water washing layer has spiral guide plate, and the outer wall has spiral brush, and there are motor, gear, water tank, water injection pipe, sealing ring, ash removal port and other components, its beneficial effect is, through the sieve hole and spiral structure of water washing layer and ash blocking layer, can efficiently clean broken glass and separate dust, improve the cleaning quality, the water circulation system of directional water valve and water storehouse etc. can realize water resource recycling, reduce waste and sewage discharge, motor and gear transmission ensure the stable operation of equipment, improve the glass recycling cleaning efficiency as a whole, reduce the cost, promote the sustainable development of glass recycling industry.
Owner:HANGZHOU FUYU GLASS PRODUCTS CO LTD

Turbulence inhibitor for gas flow, preparation and use thereof, and gas delivery method

The invention relates to the technical field of pipelines, discloses a turbulence inhibitor of airflow, preparation and application of the turbulence inhibitor and a gas conveying method, and aims to solve the problem of over-high energy consumption caused by pipeline friction resistance in pipeline transportation of gas. The turbulence inhibitor comprises microparticles, the length of the microparticles is larger than or equal to eta and smaller than or equal to Lx, and Lx is the turbulence integral scale; eta is the Kolmogorov scale, eta = (v3 / epsilon) 1 / 4, and v is the kinematic viscosity of the airflow; epsilon is the turbulent flow energy dissipation rate. The turbulence inhibitor has the advantages of being high in applicability, excellent in drag reduction effect, economical, capable of saving energy and the like.
Owner:PIPECHINA SOUTH CHINA CO +1

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