3170 results about "Industrial waste" patented technology

The invention discloses a method of preparing aluminum oxide-silicon carbide compound porous ceramic by aluminum-silicon industrial waste residues. The primary raw materials comprise industrial waste residues, carbon powder, a pore forming substance and an adhesive. The aluminum oxide-silicon carbide compound porous ceramic is prepared by the following steps of mixing, drying, forming and sintering to obtain a final product. Treatment and high additional value utilization of the industrial waste residues are achieved. The prepared porous ceramic is remarkable in performance, and can be applied to the fields of filtration, sound isolation, heat isolation, fire fighting and the like. The method is simple in process flow and convenient for industrialized promotion; and the cost is good to control and the method has extreme economical value.

The invention discloses a treatment system and a treatment method for chemical production waste gas, and relates to the technical field of industrial waste gas treatment. The system comprises a waste gas collection unit, a pretreatment unit, a multi-stage purification unit and an intelligent control unit. The intelligent control unit monitors data through a sensor network, the data processing and analysis module evaluates the processing effect and predicts the trend, the intelligent decision and adjustment module optimizes the parameters of each unit in sequence, and the remote monitoring and alarm module monitors and alarms in real time. The system can efficiently treat waste gas, realizes automatic intelligent control, ensures the stable treatment effect, reduces the risk of environmental pollution, and is widely applied to the field of chemical production waste gas treatment.

The invention relates to the technical field of system control data processing, in particular to a waste heat recovery heat supply system based on an injection type heat pump, which comprises a multi-source data acquisition module, a genetic algorithm optimization module, a dynamic mode switching module, a thermal stress suppression module and a self-learning updating module. The multi-source data collection module collects industrial waste heat temperature, power grid load and heat supply network backwater flow data through a temperature sensor array and a flow metering device, and feature vectors are extracted through sliding window standardization and principal component analysis. And heat transfer end difference fluctuation is restrained through closed-loop feedback. And the self-learning updating module constructs a multi-parameter incidence matrix to dynamically adjust the weight of a fitness function, and realizes parameter iterative optimization in combination with a historical optimal solution caching mechanism. The problems that the industrial waste heat recovery efficiency is low, thermoelectric coupling adjustment is delayed, and thermal stress of equipment is accumulated are solved.

The invention relates to the technical field of waste gas treatment, and discloses a digital twinning-based waste gas treatment intelligent early warning system, which comprises a model construction module, a monitoring module, a factor extraction module and the like. The model construction module constructs a dynamic risk model and a three-dimensional concentration field model based on waste gas components and equipment operation state data, and simulates and optimizes parameters in combination; the monitoring module generates a prediction table containing risk indexes and regulation and control parameters; the factor extraction module identifies risk association variables; the evaluation module calculates a risk accumulation index; the adjusting module updates the prediction table in sequence; and the early warning execution module triggers an alarm. The system is also provided with an instruction processing unit for realizing conflict detection and priority management. The system improves the accuracy of risk early warning and the intelligent level of regulation and control, is suitable for industrial waste gas treatment scenes, and guarantees the treatment efficiency and safety.

The invention belongs to the technical field of industrial waste heat recovery, and discloses a flue gas waste heat recovery system optimization design method considering external parameter changes. The method comprises the steps of system monitoring data acquisition and feature extraction, thermodynamic modeling and parameter sensitivity analysis, external environment parameter and system performance coupling mechanism modeling, equipment failure prediction and reliability constraint determination, multi-objective optimization and self-adaptive control strategy generation and the like. Optimized operation of the flue gas waste heat recovery system under the condition of dynamic change of external environment parameters is achieved. According to the method, a dynamic influence matrix of external environment parameters and system performance is initiatively established, the reliability of the system is evaluated in combination with a stress-life analysis technology, efficiency and cost targets are balanced through a multi-target optimization algorithm, and a self-adaptive control strategy library for different working conditions is generated. The adaptability and stability of the system under complex working conditions are improved, the service life of equipment is prolonged, and the operation cost is reduced.

The invention relates to an intelligent optimization method for an industrial waste transportation path, and the method comprises the steps: firstly collecting multi-source and multi-dimensional input variables, such as vehicles, roads, orders and waste attributes, achieving the dynamic simulation of a whole transportation process through digital twin modeling, and carrying out the structural processing of data through combining with space and environment labels; when an abnormal event is monitored, an abnormal correction action is dynamically generated and optimized through a multi-agent cooperation and game reasoning mechanism, and an optimal scheduling decision aiming at different working conditions is realized; and continuously monitoring and executing feedback by the system, returning the actual deviation to the model and the knowledge base, and driving the self-learning and continuous evolution of the anomaly correction strategy.

The invention relates to the technical field of industrial waste heat recovery optimization, in particular to an industrial circulating cooling water waste heat multi-source coupling system based on data driving, and the system comprises a waste heat collection unit, a data processing unit and an intelligent coupling regulation and control unit. After the data processing unit preprocesses data, high, medium and low temperature layers are divided according to temperature, a clustering algorithm is combined to subdivide a calorific value sub-layer, a dynamic characteristic file containing a parameter change curve, fluctuation amplitude and duration is established, the intelligent coupling regulation and control unit compares the file with pre-stored user heat demand characteristics, the matching degree is calculated preferentially according to the temperature contact ratio, and the matching degree is calculated preferentially. A single or multi-source cooperative coupling path is generated, target thermal parameters are synthesized through thermal capacity weighting in a multi-source mode, the supply and demand matching precision and the utilization efficiency of waste heat are improved, diversified energy consumption requirements of industrial scenes are met, and energy conservation and emission reduction are facilitated.

The invention discloses a mixing and feeding electric control system with a liquid level sensing function, and relates to the field of control systems. An adaptive parameter configuration module; a multi-stage gradient stirring module; a real-time data twinning processing module; a remote cooperative monitoring module; a fault linkage processing module; and an energy-saving closed-loop control module. According to the system, the material characteristic pre-detection module is combined with the water content-viscosity-medicament dosage three-dimensional mapping table and the viscosity-rotating speed mapping table, so that real-time scanning and parameter quantitative matching of the granularity, the water content and the viscosity of the industrial waste are realized; according to the scheme, the stirring sufficiency of the high-viscosity industrial sludge is improved, the energy consumption of the low-viscosity material is reduced, the dosage of the medicament is automatically matched according to the three-dimensional mapping table, the utilization rate of the curing agent is improved, and the core problems of stirring waste and insufficient stirring are fundamentally solved.

The invention relates to the technical field of industrial waste gas purification, in particular to an industrial waste gas purification ecological protection device which comprises a machine body, a purification liquid cavity and a dust collection cavity are integrally formed in the middle of the machine body, an annular limiting groove is formed in the inner wall of the machine body, and an impurity temporary storage cavity is integrally formed in the bottom end of the machine body; an impurity separation assembly is arranged at the bottom of the inner side of the machine body, and the annular limiting groove is slidably connected with the driving assembly. According to the improved ecological protection device, waste gas entering the machine body is subjected to primary impurity removal through the impurity separation assembly, so that the filtering pressure of a filter screen is reduced, a cleaning piece and an impurity cleaning plate are driven to rotate, impurities in the filter screen and an impurity temporary storage cavity are cleaned, meanwhile, a driving assembly can further drive a spraying turbulent flow assembly to operate, and the cleaning effect is improved. The rising speed of the waste gas is reduced while purifying liquid is sprayed out of the industrial waste gas, the contact time of the purifying liquid and the waste gas is prolonged, and the purifying effect on the industrial waste gas is improved.

The invention relates to the technical field of industrial process automation control, and discloses an intelligent adjusting method for an industrial waste liquid low-temperature evaporation process, which comprises the following steps of: superposing pressure step test excitation to a vacuum adjusting valve, synchronously acquiring temperature response data flow, calculating absolute error integral and SIAE and reply time characteristics of a response curve, and calculating the temperature response data flow according to the absolute error integral and SIAE and reply time characteristics of the response curve; substituting into an inverse model to solve an equivalent process gain and a time constant of the controlled object; based on the internal model control principle, PID controller parameters are dynamically calculated and updated through the calculated gain and the time constant, a control law is reconstructed to generate an execution instruction, and the problem of control divergence of a non-linear time-varying object under model mismatch is solved through active energy feature identification and a pole assignment mechanism; decoupling control and self-adaptive adjustment of fluid viscosity sudden change and equipment scaling are achieved, and the stability and control precision of the system are improved.

The invention relates to the technical field of building materials, in particular to premixed flow state solidified soil slurry with self-sensing performance and a preparation method of the premixed flow state solidified soil slurry. 200 to 220 parts of fine aggregate; 20-30 parts of industrial waste residue; 5-10 parts of an alkaline activator; 0.5 to 1.2 parts of modified epoxy resin; 70 to 90 parts of water; 1-3 parts of conductive fiber; 0.5-1 part of a water reducing agent; and 2-4 parts of an accelerator. Through the synergistic effect of the nano-zinc oxide modified epoxy resin, the conductive fibers and the industrial waste residues, perfect combination of self-sensing, high strength, high fluidity and high durability is achieved. Nano-zinc oxide is used as a seed crystal, so that ordered growth of C-S-H gel is promoted, interface bonding of epoxy resin and a cement matrix is improved, and a more compact and more stable microstructure is formed; in a long-term use process, the material shows certain self-repairing capability.

The invention relates to a method for sequestering CO2, which comprises the steps of providing a starting product comprising at least 20% by mass of one or more of the following components, ultramafic rocks, weathering products of ultramafic rocks, olivine and / or industrial waste materials, homogenizing the starting product and hydro-thermally treating the homogenized starting product in a heat treatment apparatus at a temperature of above 100° C. for at least 24 hours. Furthermore, the converted starting product is dewatered of bound water by means of thermal treatment and / or reaction grinding. Subsequently, the product thus obtained is contacted with CO2, wherein the latter is bound.

The invention discloses an intelligent prediction and scheduling management system based on hazardous waste incineration waste heat recovery power generation, relates to the technical field of hazardous waste incineration waste heat recovery power generation, and aims to monitor key parameters such as temperature, pressure, flow and flue gas components in the hazardous waste incineration process in real time, and determine the hazardous waste incineration waste heat recovery power generation through data processing and feature extraction. And the hazardous waste incineration heat value, the waste heat boiler steam production amount and the power generation amount are accurately predicted. Meanwhile, the system combines power grid load change and price fluctuation, realizes intelligent regulation and control of equipment operation and maximization of waste heat recovery efficiency and generating capacity through an optimization scheduling algorithm, can improve energy recovery efficiency to the maximum extent, reduces energy waste, improves economic benefits and environmental sustainability of the system, and has wide application prospects. The power generation benefit can be improved in the field of hazardous waste incineration, and reference can be provided for other industrial waste heat recovery power generation systems.

The invention belongs to the technical field of waste heat recovery and discloses an energy recovery and heat supply system and method based on thermoelectric conversion, and the method comprises the steps that an energy recovery unit collects heat of an industrial waste heat source, and a circulating pump drives a heat transfer medium to circulate in a pipeline; a stable temperature difference is formed at the two ends of the thermoelectric module, and thermoelectric conversion is carried out; the electric energy management unit rectifies and stabilizes the electric energy output by the thermoelectric module; a part of the electric energy after voltage stabilization is stored in a storage battery pack; the electric heating boiler is driven by electric energy to work; the heated hot water is conveyed to an area needing heat supply; and the monitoring module is controlled to operate to perform operation processing according to a preset algorithm and heat supply requirements. The energy recovery and utilization efficiency is high, waste heat resources which are wasted originally can be effectively recovered and converted into electric energy and heat energy to be used, an electric energy storage device, an auxiliary heating device and a monitoring system are arranged, and heat supply stability and continuity can be guaranteed under various working conditions.

The invention relates to the technical field of waste gas treatment, and particularly discloses a dynamic management method and system for industrial waste gas treatment, and the system comprises a region division module which is used for dividing an adsorption bed layer in adsorption equipment into a plurality of monitoring regions with similar sizes in a waste gas treatment process, by combining waste gas data at a waste gas outlet for coupling analysis, high-quality real-time waste gas concentration data can be obtained after coupling treatment on the basis of diversified data, and then the concentration of the waste gas is determined based on the data and state data of adsorption equipment in the waste gas treatment process. The real-time adsorption saturation of the adsorption equipment can be accurately analyzed, and the data reflects the adsorption saturation of the current activated carbon adsorption bed layer, so that the waste gas collection air volume can be optimized by dynamically adjusting the waste gas collection air volume through the air speed adjusting module subsequently based on the data, and the desorption of attachments is accelerated; the waste gas treatment effect is improved.

The invention belongs to the technical field of catalytic oxidation of carbon-containing industrial waste gas, and particularly relates to a Pd catalyst for catalytic combustion of carbon-containing waste gas as well as a preparation method and application of the Pd catalyst. The invention provides a Pd catalyst for catalytic oxidation of carbon-containing industrial waste gas such as CO and volatile organic pollutants VOCs. The Pd catalyst is obtained by compounding an amorphous CeO2 nano-cluster with a TiO2 substrate (marked as cCeO2 / TiO2) and indirectly regulating the form of Pd through gradient regulation of the content of the amorphous CeO2 nano-cluster by a sol-gel method on the basis of strong interaction of Pd and Ce species. The Pd catalyst prepared by the invention shows excellent low ignition temperature, high performance and certain universality in the catalytic combustion process of carbon-containing industrial waste gases such as CO and low-chain VOCs (Volatile Organic Compounds). In addition, the method for preparing the Pd catalyst is simple to operate and mild in condition, and has great industrial application potential and value.

The invention relates to the field of treatment and resource utilization of high-carbon-content materials, in particular to a method for preparing graphene at high temperature through electric pulses. The method comprises the following steps: mixing a non-graphitized carbon material and a conductive carbon material to obtain a mixture; pulse current is applied to the mixture, so that the temperature of the mixture is increased to 2000-3000 DEG C, and the mixture subjected to electric heat treatment is obtained; and carrying out cooling treatment on the mixture subjected to the electric heat treatment to obtain the graphene, wherein the carbon content in the non-graphitized carbon material is greater than or equal to 50wt%; the heating rate is 103-104 DEG C / s. According to the method, the carbon atom conversion rate is remarkably increased, the graphene preparation cost is greatly reduced, and meanwhile, the environmental problem caused by a traditional incineration or landfill mode is solved through high value-added utilization of the high-carbon-content waste. Compared with a traditional graphene preparation method, low-cost, high-quality and green preparation of graphene is achieved, the method is suitable for high-valued treatment of various high polymer materials and industrial waste, and a new technical path is provided for large-scale preparation and application of graphene.

The invention provides a multifunctional heating ventilation air conditioner waste heat utilization method and system, and the method comprises the following steps: 1, obtaining multi-source data of an air conditioner system and an external heat source, carrying out the preprocessing, carrying out the grading collection and preliminary integration of the multi-source waste heat, and dividing the multi-source waste heat into high-temperature waste heat, medium-temperature waste heat and low-temperature waste heat; multi-source data of an air conditioning system and an external heat source are collected, condensation heat of a compressor, industrial waste heat and other multiple types of waste heat are integrated and subjected to staged treatment, and a high-temperature power generation-medium-temperature heat supply-low-temperature heat storage gradient utilization system is constructed; an LSTM neural network thermal load prediction model and an intelligent algorithm are combined to dynamically adjust a waste heat distribution path so as to realize self-adaptive switching of a refrigeration mode, a heating mode and a hot water mode, and meanwhile, a cascade system, photovoltaic energy, geothermal energy and the like are coupled through a direct-current micro-grid to construct a hybrid energy supply system. The problems that in the prior art, waste heat sources are single, energy efficiency is low due to the fact that gradient utilization is lacked, dynamic regulation and control are insufficient, and cooperation with renewable energy sources is not achieved are sequentially solved.

The invention relates to a spray scrubbing tower with a built-in intelligent backwashing function, and aims to improve the industrial waste gas treatment efficiency and reduce the equipment maintenance cost, the spray scrubbing tower comprises a monitoring module, a control module, an execution module, an adjustment module and an analysis module, all the modules are connected with one another through data links to form a closed-loop control system, and the monitoring module is connected with the control module. Compared with the prior art, manual intervention is remarkably reduced, the cleaning efficiency is improved, the use amount of a backwashing medium is reduced, and the device has good economic benefits and environmental adaptability and is suitable for various industrial waste gas treatment occasions.

The invention provides a DCS-based multi-RTO cooperative control system and method, and overcomes the bottleneck of traditional waste gas treatment. The system comprises double waste gas pipelines, a DCS central controller and other modules, modes can be switched according to whether the waste gas concentration reaches a preset threshold value or not, high-concentration waste gas is subjected to two-stage oxidation during series connection, and loads are distributed according to the flow weight during parallel connection, so that the energy consumption deviation is smaller than or equal to 5%; the fan cooperation module synchronously adjusts the frequency of a main fan through a PID algorithm by taking the pressure of a header pipe as a reference to meet the dynamic balance relationship of the pressure; and the fault detection module isolates a fault unit in a scanning period, redistributes a load and maintains the total processing amount, and cuts in at a fan frequency raising rate after repair. The method comprises the steps of concentration monitoring, mode switching triggering, pressure PID control, fault processing and the like. The adaptability of the system to concentration fluctuation is improved, the waste gas treatment efficiency and stability are improved, energy consumption is reduced, production continuity and environmental protection compliance are guaranteed, and the system is suitable for industrial waste gas treatment.

The utility model provides an industrial waste gas purification device which comprises a base, a purification box body, an exhaust fan and a vibration assembly, and the exhaust fan is fixed at the top of the purification box body; the vibration assembly comprises a supporting frame and a transmission shaft. The surface of the support frame is fixedly connected with the inner wall of the purification box body; the inner wall of the purification box body is fixedly connected with filter cloth and an elastic placement plate in sequence from top to bottom; the number of the supporting frames is two, through the arrangement of the vibration assembly, waste gas is filtered through the filter cloth while flowing downwards, dust in the waste gas is removed, then the waste gas makes contact with activated carbon placed on the elastic containing plate, then harmful substances in the waste gas are removed, the filter cloth can be prevented from being blocked by the dust after the filter cloth is flapped, and the dust removal effect is improved. After being flapped, the elastic placing plate drives the activated carbon to turn up and down, so that the contact area with the waste gas is increased, the waste gas purification is accelerated, and the waste gas purification efficiency is improved.

The invention discloses a method for preparing a composite catalyst by synergistically utilizing red mud and arsenic alkali residues as well as a product and application thereof, and belongs to the field of resource utilization of industrial wastes. The method disclosed by the invention is simple in preparation process, wide in preparation raw material source and capable of realizing full-amount utilization of the red mud and the arsenic alkali residues. Compared with a traditional titanium dioxide and iron arsenate catalyst, the composite catalyst prepared by the method is more excellent in performance, the landfill leachate treatment efficiency can be remarkably improved, and the catalytic removal effect of 2145 mg / g COD, 162 mg / g total phosphorus, 356 mg / g ammonia nitrogen and 122 mg / g mercury can be achieved at most.

The invention relates to the technical field of industrial solid waste resource utilization, and particularly discloses a geopolymer-based rare earth tailing curing material and a preparation method thereof, the geopolymer-based rare earth tailing curing material comprises 8%-15% of mineral powder, 20%-25% of fly ash, 20%-35% of rare earth tailings, 0.5%-3% of fiber, 0.5%-1% of nano oxide, 15%-20% of an alkaline activator and 15%-36% of water. The geopolymer-based rare earth tailing curing material provided by the invention has the advantages of excellent mechanical properties, good fluidity, appropriate curing time, environmental friendliness and the like, and is suitable for ecological restoration of mines, treatment of tailings ponds and preparation of road base materials; according to the invention, industrial wastes (such as fly ash, slag and rare earth tailings) are used, so that resource recycling is realized; the carbon emission is low in the production and use process of the material, and the sustainable development requirement is met.

The invention provides a cement stabilized macadam mixture based on large-dosage lithium slag and a preparation method of the cement stabilized macadam mixture, and relates to the technical field of preparation of cement stabilized macadam layers.The preparation method comprises the steps that aggregate, cement, fly ash, lithium slag powder and a second exciting agent are mixed and stirred to be uniform, and the cement stabilized macadam mixture is obtained; and uniformly stirring the cement stabilized macadam mixture and water, and carrying out compression molding to obtain the cement stabilized macadam mixture based on the high-doping-amount lithium slag. According to the application, the lithium slag is subjected to activation, curing granulation and other processes to replace a part of cementing materials and graded broken stones in a cement stabilized broken stone layer, so that recycling, large-scale energy utilization and high-performance utilization of the lithium slag are realized; the lithium slag, the lithium slag powder and the active and non-active tailing smelting slag are prepared into the autoclaved artificial aggregate, and the autoclaved artificial aggregate is prepared into the cement stabilized macadam mixture, so that large-scale utilization of the lithium slag is realized, and the cost is reduced; the industrial waste and the lepidolite lithium slag are utilized, so that the environmental pollution is reduced, and the resource utilization of the waste is realized.

The invention provides an organic waste gas treatment device based on zeolite molecular sieve adsorption and desorption treatment. The organic waste gas treatment device comprises an efficient pretreatment unit, a composite zeolite molecular sieve adsorption tower group, a plasma-assisted microwave-hot air regeneration unit, a multi-mode tail gas treatment unit, a digital twin intelligent regulation and control system and a modular expansion interface. By integrating the high-precision VOCs analyzer, the self-adaptive airflow controller, the infrared spectrometer, the multi-channel heat recoverer, the high-performance edge computing server and the intelligent pneumatic valve system, the optimized processing method realizes accurate execution of a formula, the VOCs removal rate is remarkably increased, and carbon loss and energy consumption are reduced. The method has the remarkable advantages in the aspects of VOCs removal rate, zeolite regeneration efficiency, energy consumption control and operation cost, meanwhile, through deep intelligent regulation and multi-mode treatment, the efficient, stable and low-cost VOCs treatment requirements under complex working conditions are met, and an innovative solution is provided for industrial waste gas treatment.

The invention discloses a method for producing iron powder by solid reduction treatment of copper smelting slag in a rotary kiln. Copper slag powder is obtained by crushing the copper smelting slag; carrying out solid-state reduction on the pellets containing the copper slag powder in a rotary kiln; carrying out magnetic separation on the reduced material to obtain iron powder and tailings; the pellets are fed into the rotary kiln from the tail of the rotary kiln, air is blown into the rotary kiln from a kiln head, and the reduced materials are discharged from the kiln head; the raw materials of the pellets comprise copper slag powder, limestone powder and pulverized coal. According to the method, the copper smelting slag is subjected to solid-state reduction treatment through the rotary kiln to comprehensively recover and produce the iron powder, and treatment and resource recycling of the copper smelting slag are achieved; the reduction, harmlessness and recycling of the industrial waste residues are realized, the investment is saved, the energy is saved, the consumption is reduced, the operation cost is low, and the popularization is easy.

The invention discloses an intelligent dioxin regulation and control method and system in a plasma melting furnace starting process, and relates to the field of industrial waste gas treatment. An intelligent dioxin regulation and control method in the plasma melting furnace starting process comprises the steps that S1, key operation parameters influencing dioxin generation are collected in the plasma melting furnace starting process, the dioxin concentration in tail smoke is detected on line, and a data set is generated; s2, correlation between the key operation parameters and dioxin is analyzed, and influence degree sequencing is conducted on the multiple key parameters in the furnace starting process; s3, establishing an intelligent regulation and control model; s4, based on the received various data, obtaining a dioxin concentration prediction value; s5, performing comparative analysis according to the actual dioxin concentration in the tail smoke and a dioxin concentration predicted value, and correcting the intelligent regulation and control model; and S6, giving key parameter adjustment suggestions and adjustment result prediction according to the given scoring basis. The whole-process precise control and green up-to-standard emission of the dioxin are realized.

The invention relates to the technical field of industrial waste heat recycling, in particular to an electric heating device and method for superheating saturated steam generated in the evaporative cooling process of a converter, an electric furnace and a steel rolling heating furnace in the iron and steel industry. Clean energy electricity serves as a heat source, saturated steam is heated into superheated steam through the steam superheater, the quality of the saturated steam can be effectively improved, damage of steam condensation water is prevented, and meanwhile steam conveying loss can be reduced; and compared with a traditional fuel gas type overheating device, other emissions are not added, and the problem of environmental pollution cannot be generated. The method is particularly suitable for the superheating process of high-temperature flue gas of a converter and an electric furnace in steel production and saturated steam generated by evaporative cooling steam drums such as a supporting beam in a heating furnace, the quality of (saturated) steam can be greatly improved by adopting the method, meanwhile, the harm caused by condensation of steam into water due to temperature reduction can be prevented, energy waste is effectively reduced, and the production cost is reduced. And the method has high economic benefits.

The invention relates to the technical field of resource recycling of industrial waste liquid, in particular to a cyclic treatment and reutilization method of alkali liquor for chitosan preparation, which comprises the following steps: step 1, on-line monitoring and shunting of the state of the alkali liquor; step 2, multi-stage separation and impurity removal; 3, dynamic regulation and control of ion components: adjusting the flow rate based on the change rate of the conductivity value at the inlet of the ion exchange resin column, and triggering resin regeneration when the pH value at the outlet reaches a regeneration critical point; 4, alkali activity compensation: dynamically supplementing alkali according to the effective alkali concentration of regenerated alkali liquor and the demand of a target recycling process section; and 5, sequential control recycling: injecting fresh alkali liquor when the initial-stage deacetylation reaction is started, and proportionally pumping regenerated alkali liquor when the middle-stage reaction reaches a temperature peak value. According to the method, the quality and the reaction efficiency of the alkali liquor are effectively controlled, various parameters in the production process are optimized through accurate dynamic regulation and control, the recycling rate of the alkali liquor is increased, the production cost is reduced, and the dual effects of environmental protection and energy conservation are achieved.

The invention relates to the field of new energy, and discloses a regional multi-energy complementary zero-carbon energy supply system coupling a reversible solid oxide battery technology and a closed CO2 network, which comprises an RSOC heat-mass-electricity reversible converter, a closed CO2 circulating network, renewable energy power, an external heat source, a chemical energy storage, a natural cold and heat source and a terminal energy consumption module. According to the invention, the RSOC bidirectionally operates in a power generation mode and an electrolysis mode, the coupling chemical energy storage module realizes regional multi-time scale energy balance, photovoltaic power generation supplies power to RSOC electrolysis and terminal users at the same time, and light condensation and heat collection and industrial waste heat in the external heat source module can be integrated with the RSOC module to reduce electrolysis power consumption. The closed CO2 network adopts pressurized low-temperature CO2 as a circulating working medium of the regional heating and cooling network, and RSOC waste heat and natural cold and heat resources can be fully utilized on the source side; the network heating and cooling capacity is greatly improved at the terminal through phase change heat transfer, passive cooling of a user is achieved, meanwhile, the water source heat pump is coupled to meet the heating power requirements of different grades, and net zero carbon emission is achieved in the whole process.