Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

2346 results about "Industrial waste" patented technology

Industrial waste is the waste produced by industrial activity which includes any material that is rendered useless during a manufacturing process such as that of factories, industries, mills, and mining operations. Types of industrial waste include dirt and gravel, masonry and concrete, scrap metal, oil, solvents, chemicals, scrap lumber, even vegetable matter from restaurants. Industrial waste may be solid, liquid or gaseous. It may be hazardous or non-hazardous waste. Hazardous waste may be toxic, ignitable, corrosive, reactive, or radioactive. Industrial waste may pollute the air, the soil, or nearby water sources, eventually ending up in the sea. Industrial waste is often mixed into municipal waste, making accurate assessments difficult. An estimate for the US goes as high as 7.6 billion tons of industrial waste produced every year. Most countries have enacted legislation to deal with the problem of industrial waste, but strictness and compliance regimes vary. Enforcement is always an issue.

Method of preparing aluminum oxide-silicon carbide compound porous ceramic by aluminum-silicon industrial waste residues

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.
Owner:NORTHEASTERN UNIV CHINA

Waste gas treatment intelligent early warning system based on digital twinning

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.
Owner:JIAN MINGFENG ENVIRONMENTAL PROTECTION EQUIP CO LTD

Flue gas waste heat recovery system optimization design method considering external parameter change

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.
Owner:QINGDAO DANENG ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD

Industrial waste transportation path intelligent optimization method

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.
Owner:MEIZHOU HUALI FENG IND CO LTD

Industrial circulating cooling water waste heat multi-source coupling system based on data driving

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.
Owner:JILIN FUDE JIAHE ENERGY TECH CO LTD

Mixing feeding electric control system with liquid level sensing function

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.
Owner:CHINA CONSTR THIRD ENG BUREAU GRP SOUTH CHINA CO LTD

Intelligent adjusting method for low-temperature evaporation process of industrial waste liquid

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.
Owner:KUNSHAN BOSHIJIE MASCH TECH CO LTD

Dynamic management method and system for industrial waste gas treatment

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.
Owner:ZHEJIANG SHENLAN ENVIRONMENTAL ENG CO LTD

Pd catalyst for catalytic combustion of carbon-containing waste gas as well as preparation method and application of Pd catalyst

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.
Owner:GUANGDONG UNIV OF TECH

Method and system for utilizing waste heat of multifunctional heating ventilation air conditioner

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.
Owner:SUZHOU YANGJI ELECTROMECHANICAL ENG CO LTD

Multi-RTO cooperative control system and method based on DCS

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.
Owner:SUPCON TECH CO LTD

Geopolymer-based rare earth tailing curing material and preparation method thereof

PendingCN120289129AMaterial fill-upFiberSlag
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.
Owner:华能庆阳煤电有限责任公司 +2

Organic waste gas treatment device based on adsorption and desorption treatment of zeolite molecular sieve

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.
Owner:JIANGSU QIQING ENVIRONMENTAL TECH CO LTD

Method for producing iron powder by solid reduction treatment of copper smelting slag in rotary kiln

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.
Owner:HUNAN JINMA METALLURGICAL ENGINEERING TECHNOLOGY CO LTD

Method for circularly treating and recycling alkali liquor for preparing chitosan

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.
Owner:WEIFANG YINGKE MARINE BIOMATERIALS CO LTD

Concrete composite expanding agent and preparation method thereof

The invention provides a concrete composite expanding agent and a preparation method thereof, and belongs to the field of concrete admixtures. The concrete composite expanding agent comprises modified phosphogypsum, fly ash, bauxite, a modified oxide and an auxiliary agent, and is obtained by uniformly mixing the modified phosphogypsum, the fly ash, the bauxite, the modified oxide and the auxiliary agent which have different specific surface areas. According to the composite expanding agent, the modified ardealite and the fly ash synergistically provide an early-stage expansion source, early-stage shrinkage of concrete is compensated through calcium sulphoaluminate hydration products, meanwhile, modified magnesium oxide serves as a later-stage expansion source, magnesium hydroxide is generated through slow hydration, and long-term expansion compensation is achieved; the device has the advantages of good strength, compensation capability and the like; a large amount of industrial waste residues such as ardealite and fly ash are utilized, high-added-value utilization of the industrial waste residues is achieved, and remarkable economic benefits are achieved.
Owner:HUBEI YITONG CONSTR ENG CO LTD

Acid gas treatment device and method for synthesis ammonia production

The invention relates to the technical field of industrial waste gas treatment, and discloses an acid gas treatment device and method for synthesis ammonia production, the acid gas treatment device for synthesis ammonia production comprises an absorption tower, a spraying system and a filler layer, the spraying system and the filler layer are installed in the absorption tower, and a receiving disc is arranged below the filler layer; the receiving disc comprises a plurality of annular plates which are vertically and coaxially distributed, the diameters of the annular plates are gradually reduced from top to bottom, the bottom of the annular plate on the lowermost side is fixedly connected with a drainage ring, the outer wall of the lower portion of the drainage ring is sleeved with a collecting cylinder, the inner wall of the drainage ring is fixedly connected with a flow slowing cylinder, and the lower portion of the flow slowing cylinder extends into the collecting cylinder. The solvent flows on the annular plate, and after the flow speed of the solvent is slowed down through the flow slowing cylinder, the solvent and impurities form a falling speed difference in the collecting cylinder, so that the impurities can effectively precipitate at the bottom in the collecting cylinder and are prevented from flowing to a filtering system of the recycling box along with the solvent, the burden of the filtering system is relieved, and the recycling efficiency of the solvent is improved.
Owner:河南神马氢化学有限责任公司

Industrial waste gas purification treatment control system based on multiple sensors

The invention relates to the technical field of industrial waste gas purification, in particular to an industrial waste gas purification treatment control system based on multiple sensors, which comprises a multi-scale sensor data fusion and compensation module, a multi-dimensional degradation analysis module, a feature decoupling module, a control decoupling module and a feedforward-feedback composite control module, the multi-scale sensor data fusion and compensation module outputs a space-time aligned sensor data matrix; the multi-dimensional degradation analysis module generates a multi-dimensional calibration data packet including sensor aging compensation parameters; the feature decoupling module generates an independently decoupled process feature vector; the control decoupling module outputs a control parameter group with a decoupling relation; and the feedforward-feedback composite control module outputs a cooperative control instruction set. According to the invention, the flexibility and accuracy of the waste gas purification system are enhanced, and the response capability of the system to dynamic environment change is improved.
Owner:SHANDONG UNIV OF SCI & TECH

Desulfurization purification device and process based on industrial waste gas treatment

The invention relates to the technical field of waste gas treatment, and discloses a desulfurization purification device and process based on industrial waste gas treatment.The desulfurization purification device comprises a desulfurization tower, a rotational flow mechanism, a transmission mechanism and a solid-liquid separation mechanism and further comprises a collection box fixedly installed at the bottom of the desulfurization tower and a dust removal mechanism fixedly installed on one side of the desulfurization tower; according to the technical scheme, through the combined action of spiral blades in the rotational flow mechanism and the transmission mechanism, an efficient rotating flow field is formed, the retention time of waste gas in the tower is prolonged, sulfide and atomized reaction liquid are more fully contacted, chemical reaction of the reaction liquid on the sulfide is promoted, and therefore efficient sulfide removal and purification are achieved; wherein the rotational flow mechanism endows the waste gas with tangential speed through inclined blades in the rotational flow mechanism, so that the waste gas rotates, a spiral ascending flow field is formed in the desulfurization tower, the retention time of the waste gas is prolonged, the contact opportunity of the waste gas and atomized reaction liquid is increased, sulfide absorption is facilitated, and the desulfurization purification effect is improved.
Owner:HUAXIN HLDG (HENAN) CO LTD

Desulfurization device for industrial waste gas

The invention relates to the technical field of desulfurization equipment, and particularly discloses an industrial waste gas desulfurization device which comprises a desulfurization mechanism, a demisting mechanism is arranged in the desulfurization mechanism, and a scraping mechanism is arranged on the demisting mechanism; the demisting mechanism comprises a mounting assembly and a plurality of demisting assemblies, the mounting assembly is mounted on the desulfurization mechanism, and the demisting assemblies are distributed on the mounting assembly at equal intervals; according to the desulfurization device for the industrial waste gas, when the demisting mechanism is cleaned, a first movable plate and a second movable plate are flushed through water flow, and after the first movable plate and the second movable plate are flushed, a scraping plate moves up and down, so that the scraping plate is sequentially transferred to the first movable plate and the second movable plate; when the scraper is moved to the first movable plate and the second movable plate, water flow can directly wash the scraper, so that the scraper can be subjected to large water flow impact, scaling on the scraper is avoided, and the frequency of shutdown maintenance is reduced.
Owner:GUANGDONG LINTON INTELLIGENT EQUIP CO LTD

Preparation method of low-carbon magnesium phosphate cement

The invention relates to a preparation method of low-carbon magnesium phosphate cement. The low-carbon magnesium phosphate cement is prepared from the following raw materials in parts by weight: 40-50 parts of magnesium oxide, 20-30 parts of phosphate, 1-2 parts of a retarder, 6-8 parts of quartz powder, 1-3 parts of glass fibers, 0.5-1.5 parts of polypropylene fibers, 1-3 parts of steel fibers, 10-20 parts of slag powder, 5-15 parts of silica fume, 1-2 parts of nano silicon dioxide, 0.5-1.5 parts of nano aluminum oxide and 4-6 parts of an additive. According to the preparation method of the low-carbon magnesium phosphate cement, mineral admixtures or industrial waste residues which are lower in price are introduced to serve as partial substitute materials, the requirement for high-cost raw materials is reduced, waste such as fly ash and slag can be used for replacing partial expensive raw materials, the production cost is reduced, cyclic utilization of resources is promoted, and the low-carbon magnesium phosphate cement is suitable for industrial production. Secondly, in order to overcome the problem that the strength of traditional low-carbon magnesium phosphate cement is reduced in water, a special retarder, a stabilizer and other modified materials are added, and dissolution of hydration products in water can be effectively inhibited.
Owner:JILIN YATAI CEMENT

Spray tower for industrial waste gas treatment

The invention relates to the technical field of industrial waste gas treatment, in particular to a spray tower for industrial waste gas treatment, which comprises a bracket, a tower body mounted on the bracket, an annular gas pipe connected to the lower part of the outer wall of the tower body, gas injection pipes connected to the annular gas pipe at intervals along the circumferential direction and extending into the tower body, a gas inlet pipe connected to the annular gas pipe, and a connecting plate connected to the lower part in the tower body, a connecting plate is rotationally connected to the connecting plate through a rotating shaft, a blocking ring used for blocking the gas injection pipe is connected to the connecting plate, and a gas inlet is formed in the blocking ring. The transmission assembly can be driven by the motor to drive the rotating shaft to intermittently rotate, so that the air inlets in the blocking ring can be sequentially aligned with the four air injection pipes on the annular air pipe, the entering direction of waste gas is automatically switched, and the situation that the waste gas only concentrates at the center or one side of a filler area to flow is avoided; particulate matters in the waste gas are prevented from tending to be attached to the same position of the filler, the risk of local blockage is reduced, the effective area of an airflow channel is increased, and the waste gas treatment efficiency is improved.
Owner:TAICANG YUGEMINGYE ENVIRONMENTAL PROTECTION EQUIP CO LTD

A method for preparing binary ceramsite using coal gangue and the prepared binary ceramsite

The present application relates to the field of ceramsite, and specifically discloses a method for preparing binary ceramsite using coal gangue and the obtained ceramsite. The method comprises the following steps: preparing the core: fully mixing carbon-free industrial waste slag with calcium phosphate solution at a ratio of 1kg: (0.4-0.8)L, pressurizing, and then granulating to obtain green balls, and uniformly spraying a binding solution on the surface of the green balls to obtain the core; preparing the coating material: fully mixing coal gangue with sodium alginate solution at a ratio of 1kg: (0.2-0.5)L to obtain the coating material; overmolding: uniformly coating the core with the coating material to form a binary green ball, wherein 0.15 < d / D < 0.75, d is the green ball diameter, and D is the binary green ball diameter; preparing the ceramsite: drying, pyrolyzing, decarbonizing, sintering, and cooling the binary green balls to form binary ceramsite. The obtained ceramsite product not only has no black core, excellent strength, but also good water absorption.
Owner:BEIJING ZHONGHONGLIAN ENG TECH CO LTD

Internal circulation purification control system and method for volatile smell generated by industrial equipment

The invention discloses an internal circulation purification control method for volatile smell generated by industrial equipment, and relates to the technical field of industrial waste gas treatment.The internal circulation purification control method comprises the steps that volatile gas is collected, gas control indexes are extracted, and the starting state of purification equipment is determined; analyzing the purification benefit ratio and judging the stability; judging whether the multi-equipment working condition analysis intervals are consistent or not, and if yes, constructing a response curve to recognize a preferred intervention interval; and constructing a time prediction model and a multi-device collaborative algorithm from historical data, predicting a time period of occurrence of the preferable intervention interval, and formulating a collaborative control strategy. The internal circulation purification control system for the volatile odor generated by the industrial equipment comprises a state determination module, a stability analysis module, an interval recognition module and a prediction control module. According to the invention, efficient purification of industrial volatile odor is realized, and the system stability and the energy-saving effect are improved.
Owner:CHIBI CITY LIWEI TECHNOLOGY CO LTD

Method for preparing carbon monoxide normal-temperature oxidation catalyst based on electrolytic manganese residues and landfill leachate

The invention discloses a method for preparing a carbon monoxide normal-temperature oxidation catalyst based on electrolytic manganese residues and landfill leachate. The method comprises the following steps: soaking and purifying the electrolytic manganese residues with deionized water to obtain preliminarily purified electrolytic manganese residues; mixing aryl alcohol dehydrogenase, the preliminarily purified electrolytic manganese residues and the landfill leachate, and standing to obtain enzymolysis electrolytic manganese residue slurry; mixing fly ash, red mud and the enzymolysis electrolytic manganese slag slurry, uniformly stirring, drying and grinding to obtain a multi-component composite raw material; placing the multi-component composite raw material in low-temperature plasma equipment for irradiation to obtain a plasma activated composite material; and carrying out hydrothermal reaction on the plasma activated composite material to obtain a hydrothermal structure composite material, dipping the hydrothermal structure composite material in a solution containing cerium nitrate, drying, and roasting to obtain the carbon monoxide normal-temperature oxidation catalyst. The carbon monoxide normal-temperature oxidation catalyst with high activity and high moisture resistance is prepared by utilizing industrial wastes and landfill leachate enzymolysis derivative liquid.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY

Volatile organic compound recovery processing equipment and method

The invention relates to the technical field of industrial waste gas treatment, in particular to volatile organic compound recovery treatment equipment and method.The volatile organic compound recovery treatment equipment comprises an acquisition module, an electric field separation module, a gradient adjustment module, a dynamic compensation module, a classification optimization module, a polarization recovery module and a data processing and adaptive regulation module which are sequentially connected in series. The acquisition module captures emissions and detects parameters, and the data processing module generates a control instruction based on the parameters and drives the modules to perform classification separation and recovery; and the adaptive regulation and control module is combined with residual data of the polarization recovery module, and parameters of each module are reversely optimized through the data processing module. The device realizes accurate trapping, efficient separation and self-adaptive recovery of dynamic emission through module coordination and closed-loop regulation, improves the treatment stability and the resource recovery rate, and is suitable for industries such as chemical engineering and pharmacy.
Owner:PINGDINGSHAN DONGXIN COKING CO LTD

Multi-stage spraying-adsorption deep purification equipment for tail gas generated in naphthalene sulfonic acid production

The invention discloses multistage spraying-adsorption deep purification equipment for naphthalene sulfonic acid production tail gas, and belongs to the technical field of industrial waste gas treatment. The multistage spraying-adsorption deep purification equipment for the naphthalene sulfonic acid production tail gas comprises a spraying tower, a cyclone separator and an adsorption box which are sequentially connected, the spraying tower is sequentially provided with a conical liquid collecting tank, a dispersion plate, a filler layer and an alkali liquor spraying pipe from bottom to top, and one side of the spraying tower is provided with a tail gas inlet pipe inserted into the lower portion of the dispersion plate. According to the multi-stage spraying-adsorption deep purification equipment for the naphthalene sulfonic acid production tail gas, the multi-stage spraying, cyclone separation and adsorption technologies are combined, SO2, acid gas and organic pollutants in the naphthalene sulfonic acid production tail gas are efficiently removed, the emission of harmful substances is reduced by adopting an efficient waste gas treatment method, and the environmental pollution is reduced. Meanwhile, waste water is recycled through the waste liquid collecting pool, and the activated carbon layer subjected to silanization treatment has good hydrophobicity.
Owner:ANHUI SHENGYUAN CHEM

Lithium orthosilicate-based CO2 high-temperature adsorbent prepared based on co-treatment and synergism of multiple industrial wastes, and method and application of lithium orthosilicate-based CO2 high-temperature adsorbent

The invention belongs to the technical field of industrial solid waste resource utilization and high-temperature CO2 adsorption materials, and provides a lithium orthosilicate-based CO2 high-temperature adsorbent prepared on the basis of synergistic treatment and synergism of various industrial wastes, and a method and application of the lithium orthosilicate-based CO2 high-temperature adsorbent. The preparation method comprises the following steps: separating, washing and drying to obtain a SiO2-containing hybrid solid product, mixing the SiO2-containing hybrid solid product with lithium battery derived lithium hydroxide, anhydrous citric acid and deionized water, drying to obtain a lithium silicate precursor, and finally roasting to obtain the lithium orthosilicate-based CO2 high-temperature adsorbent. Under the condition that the temperature window is 650-720 DEG C, the adsorption capacity of the adsorbent for high-concentration carbon dioxide can reach 18% or above, and part of the temperature can reach 30% or above. Most of the raw materials are selected from industrial wastes, and the preparation method has the characteristics of low cost and suitability for continuous production of process steps, and has industrial production prospects.
Owner:SICHUAN UNIV

Method for optimizing ratio of industrial waste residue to microbial composite curing agent

The invention provides a method for optimizing the proportion of industrial waste residues and a microbial composite curing agent, and belongs to the technical field of building materials.The method comprises the steps that the industrial waste residues are ground into superfine powder with the specific surface area of 350-450 m < 2 > / kg, meanwhile, bacillus is cultured at the temperature of 30-35 DEG C until the concentration of bacillus is 108-109 / mL, and a mixture is obtained; a pH meter and a dissolved oxygen meter are adopted to monitor the state of a microbial solution in real time, the aeration intensity and nutrient solution supplement are automatically adjusted according to critical value judgment, a composite curing agent is prepared according to the calculation proportion, the interface bonding strength and compressive strength are tested, and the curing effect is evaluated through a strength development equation and a durability prediction equation. According to the comprehensive performance indexes, the matching parameters are dynamically adjusted, the testing and adjusting process is repeated until the results are stabilized in the target performance interval for five continuous times, the final matching is determined, and the technical problem that the matching of the industrial waste residues and the microbial composite curing agent is difficult to accurately optimize is solved.
Owner:CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD

Carbon capture process adaptive scheduling and optimization method oriented to fluctuating gas source

The invention discloses a fluctuating gas source-oriented carbon capture process adaptive scheduling and optimization method, and belongs to the technical field of industrial waste gas treatment. According to the technology, the problems of low operation efficiency, high energy consumption and easiness in flooding of a carbon capture system during large-amplitude high-frequency fluctuation of flue gas flow are solved. According to the scheme, the method is characterized by comprising the steps that a bidirectional vortex street flow sensing array is arranged in a flue gas pipeline, and flue gas flow fluctuation amplitude and high-frequency pulsation time proportion in a statistical window are calculated in real time; constructing a target function fused with fluctuation intensity to optimize steam and compressor energy consumption; compensation based on a risk prediction function and a flow component second derivative is carried out on the absorbent circulation flow of the flooding sensitive frequency band; in the flue gas rising period, the pressure set value of the regeneration tower is adjusted according to the flow change rate, and fluctuation propagation is blocked; upon detection of extreme fluctuations, the absorbent flow rate change rate is constrained and compensation is suspended. The method is mainly used for improving the operation stability and energy efficiency of the carbon capture system under the fluctuating gas source condition.
Owner:CHINA HARBOUR ENGINEERING