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546 results about "Industrial water" patented technology

Intelligent tracing method for process medium leaked in circulating water

The invention relates to the technical field of industrial water system safety monitoring, in particular to an intelligent source tracing method for a process medium leaked in circulating water, which comprises the following steps of: acquiring multi-dimensional operating parameters such as conductivity, pH value, turbidity, dissolved oxygen, temperature, pressure and characteristic ion concentration; a standardized water quality parameter matrix is generated after space-time alignment and wavelet noise reduction; the method comprises the following steps: extracting an abnormal fluctuation signal by using a leakage feature recognition model based on transfer learning, simulating a diffusion process through a three-dimensional leakage diffusion model, realizing leakage source positioning by combining reverse particle tracking and kernel density estimation, associating a high-probability leakage region with upstream process equipment, extracting backtracking path features, and matching a process medium feature library, thereby realizing leakage source positioning. The leakage medium type is judged; and finally generating a structured traceability report. According to the method, high-precision identification, positioning and medium analysis of process leakage in a complex circulating water system can be realized, and the method has relatively high practicability and popularization value.
Owner:QINGDAO JIANGHAO ENVIRONMENTAL PROTECTION TECH CO LTD

Intelligent temperature adjusting system for industrial water chiller

The invention relates to the technical field of non-electrical variable control, and discloses an industrial water chiller temperature intelligent adjusting system, which comprises a refrigeration circulation loop and a control unit, the control unit calculates a steady state control component based on the water outlet temperature deviation, performs differential processing on the refrigerant pressure to extract the gradient, and outputs the gradient. Generating a transient compensation component when the gradient exceeds a dynamic noise threshold; according to the method, the problem of thermal lag is solved by utilizing the pressure wave transmission speed advantage, aggressive response is prevented from triggering low-pressure shutdown through a safety margin constraint mechanism, the pressure safety margin is calculated in real time, a gain coefficient is determined according to a nonlinear model, and a final driving instruction is generated. And the dynamic balance of the control response speed and the system physical security boundary is realized.
Owner:FUJIAN GENOHOPE BIOTECH LTD

Coal seam chemical outburst elimination method based on molecular dynamics

The invention discloses a coal seam chemical outburst elimination method based on molecular dynamics, which belongs to the field of coal mine safety, and comprises the following steps: sampling and analyzing to obtain the element proportion, group composition and chemical bond connection mode of a coal sample, constructing a real coal molecular skeleton, and reducing and optimizing the molecular structure of coal by molecular simulation; the method comprises the following steps: adding a surfactant, setting the real gas content, gas pressure and environment temperature of a coal seam, establishing a micro model after the surfactant is injected into the coal seam, simulating the occurrence state and reaction process of methane molecules in the coal seam under the action of the surfactant, and determining the methane content in the coal seam by combining the migration characteristics of the methane molecules and the energy change of the system. And the concentration of the injected surfactant is optimized, so that the engineering application of large-range industrial water injection outburst elimination of the coal seam is developed. According to the method, through molecular simulation, the complex occurrence characteristics of the coal seam are considered, the concentration of the injected surface active agent is optimized, and the hydraulic measure efficiency is improved.
Owner:CHINA UNIV OF MINING & TECH

Industrial water pollution tracing method based on convolutional neural network and water quality fluorescent fingerprints

The invention belongs to the technical field of regional water environment supervision, and discloses an industrial water pollution traceability method based on a convolutional neural network and water quality fluorescence fingerprints, and the method comprises the steps: obtaining wastewater water quality fluorescence fingerprint information based on a three-dimensional fluorescence spectrum technology, and constructing a CNN pollution traceability classification model by using three-dimensional fluorescence spectrum data as input; and outputting the category of the sample, and inputting the three-dimensional fluorescence spectrum data of the unknown sample into the trained CNN pollution traceability classification model to obtain a suspected pollution source. The industrial water pollution tracing method based on the convolutional neural network and the water quality fluorescent fingerprints is developed for industrial wastewater-urban sewage compound sewage treatment plants and industrial park sewage treatment plants, has the characteristics of simplicity and convenience in operation, low cost, high efficiency and good accuracy, has a relatively high practical application value, and has a wide application prospect. The standard-exceeding emission pollution source can be quickly identified, and technical support is provided for regional water environment supervision.
Owner:DALIAN UNIV OF TECH

Multi-stage distribution method for water diversion quantity of irrigation area under constraint of total quantity index

The invention provides an irrigation district water diversion quantity multistage distribution method under total quantity index constraint, comprising the following steps: dividing an irrigation district into a plurality of calculation units based on an administrative division boundary and a canal system network; respectively calculating the initial water demand of each calculation unit under the living water demand, the industrial water demand, the agricultural water demand and the ecological water demand; based on the initial water demand and according to multiple water resource rigid constraint indexes, performing at least one round of checking and pressure reduction on the initial water demand of each calculation unit to obtain an initial distribution water amount of each calculation unit; and carrying out secondary distribution on surplus water generated after checking and pressure reduction, and compensating the calculation units of which the water demand is not met to obtain the final distribution water of each calculation unit. According to the method, fair, reasonable and efficient distribution of water resources in a complex system with cross coupling of administrative division and canal system networks is realized, and the problems of conflict between a scheme and actual management requirements, water consumption contradiction and the like caused by a traditional single-dimension distribution method are avoided.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Storage and charging all-in-one machine

The invention belongs to the technical field of storage and charging equipment, and particularly relates to a storage and charging all-in-one machine which comprises a shell cooling mechanism, the interior of a shell is divided into a battery bin and an inversion bin, a battery module is arranged in the battery bin and comprises a plurality of stacked battery cells, an alternating-current and direct-current inverter is arranged in the inversion bin, and the battery cells are connected with the alternating-current and direct-current inverter. And the AC / DC inverter is electrically connected with the battery module. According to the invention, a closed-loop liquid cooling circulation system is adopted, heat conduction liquid can rapidly take away heat when the battery cell works, performance degradation or potential safety hazards of the battery cell caused by too high temperature are avoided, the heat dissipation area is increased through the design of the circuitous and surrounding insulating heat conduction pipe, and the cooling efficiency is obviously higher than that of a traditional air cooling scheme in cooperation with constant temperature control of the industrial water cooler. The shell is divided into the battery bin and the inverter bin, the battery module and the alternating current and direct current inverter are arranged in a partitioned mode, mutual interference of heat generated when the battery and the inverter work can be properly avoided, maintenance of all parts is facilitated, and the operation stability of equipment is improved.
Owner:SUZHOU TONGDING XINDONG ENERGY STORAGE TECHNOLOGY CO LTD

Slowly-dissolved micro-nano dispersion scale inhibition material and preparation method thereof

The invention relates to the technical field of scale inhibition materials, in particular to a slowly-dissolved micro-nano dispersion scale inhibition material and a preparation method thereof. The composite material comprises a four-layer structure, wherein a porous hydroxyapatite core anchors DTPMP through phosphate radical vacancy to inhibit burst release; sulfonated polyetheretherketone and a cross-linking agent are compounded to form an ion selective controlled release layer, and the diffusion rate of the scale inhibitor is regulated and controlled; photo-thermal conversion graphene quantum dots are embedded in a temperature-sensitive hydrogel shell, and dynamic release is triggered through temperature or Ca < 2 + > concentration; and the corrosion resistance and the mechanical stability are enhanced by the atomic layer deposited ceramic layer and the epoxy resin packaging layer. By constructing a four-layer composite slow-release system, long-acting scale inhibition, extreme tolerance and dynamic response are achieved, the technical problems that a traditional scale inhibition material is high in burst release rate, poor in weather resistance and delayed in release are solved, the water treatment cost per ton is low, the RO membrane service life is long, and a full-period efficient scale inhibition solution is provided for a complex industrial water system.
Owner:CHENGDU NAHAICHUAN ENVIRONMENTAL ENG CO LTD

Rare earth element doped stainless steel oxygen evolution electrode and preparation method thereof

The invention discloses a rare earth element doped stainless steel oxygen evolution electrode and a preparation method thereof, and belongs to the technical field of electrode preparation. The preparation method of the stainless steel oxygen evolution electrode comprises the steps that stainless steel with impurities removed serves as an anode and is placed in an alkaline solution with the concentration being 7-12 mol / L, cyclic voltammetry is adopted, stainless steel treated through cyclic voltammetry is obtained, and the potential window is-0.3 V to 1.5 V; the stainless steel is placed in an alkaline solution with the concentration being 1-2 mol / L and serves as an anode for electrolysis, and anodic oxidation stainless steel is obtained; the anodic oxidation stainless steel is placed in a cerium ion solution, a cyclic voltammetry method is adopted, the stainless steel serves as an anode to be treated, and a stainless steel oxygen evolution electrode is obtained through electro-deposition; wherein the potential window is-1.5 V to 1.0 V (+ / -0.5 V). The preparation method is simple, the cost is low, large-scale preparation is easy, long-time, high-temperature and other complex preparation processes are not needed, and when the electrode is used as an electrode for electrolyzing oxygen evolution in water, the electrode has excellent catalytic activity and shows huge application prospects in large-scale industrial hydrogen production through water electrolysis.
Owner:CHONGQING UNIV

Industrial water demand prediction method based on big data mining and physical mechanism dual drive

The invention relates to the technical field of hydraulic engineering and computer application, and particularly provides an industrial water demand prediction method based on big data mining and physical mechanism dual-drive, and the method comprises the steps: carrying out the space-time alignment and feature anchoring of a multi-source database by taking an industrial water full-cycle element as an index; establishing an inter-index nonlinear semantic association network; multi-dimensional indexes in the nonlinear semantic association network are input into the dynamic entropy weight redundancy elimination model, redundant features are eliminated, and an industrial water sensitive factor set is generated; constructing an industrial water constitutive equation with explicit interpretability in combination with physical correlation characteristics of the core control chain; and performing bidirectional embedding with a social economic parameter prediction module to form a double-engine prediction architecture which takes a physical mechanism equation as a core driving force and takes a real-time data stream as a dynamic corrector, thereby realizing mechanism-data dual-drive prediction of industrial water demand evolution. According to the method, the problem that a prediction result of a traditional data-driven model in an industrial scene is not traceable is solved.
Owner:ZHENGZHOU UNIV

Liquid level temperature control system of industrial water chiller

The invention relates to the technical field of precise temperature control, and discloses a liquid level temperature control system of an industrial water chiller, which comprises a liquid level adjusting loop, a temperature adjusting loop and a cooperative control device with a one-way logic channel, and calling a preset flow mapping model to check a mass flow estimated value, calculating an instantaneous enthalpy flow change rate introduced by a water supplementing action, converting the instantaneous enthalpy flow change rate into a feedforward compensation signal, superposing the feedforward compensation signal to a temperature adjusting loop, and executing model parameter self-calibration logic based on thermal response residual. Zero time difference immunization on water replenishing thermal disturbance is realized; meanwhile, flow model parameters are reversely corrected through temperature residual errors, and the adaptive capacity of the system for resisting water pressure fluctuation and assembly aging under the flowmeter-free working condition is improved.
Owner:FUJIAN GENOHOPE BIOTECH LTD

Preparation method of low-chlorine composite environment-friendly coal transportation anti-freezing agent

The invention discloses a preparation method of a low-chlorine composite environment-friendly coal transportation anti-freezing agent, and belongs to the technical field of anti-freezing solutions. The anti-freezing solution is used for solving the technical problems of complex components and poor anti-freezing and metal corrosion resistance of the anti-freezing solution for coal transportation in the prior art. The preparation method of the low-chlorine composite environment-friendly coal transportation anti-freezing agent comprises the following step: uniformly mixing the compound pour point depressant, the modified corrosion inhibitor, the thickening stabilizer and the industrial water to prepare the low-chlorine composite environment-friendly coal transportation anti-freezing agent. The compound pour point depressant comprises an organic pour point depressant and an inorganic pour point depressant; the organic pour point depressant is obtained by reacting unsaturated azole, sodium methallyl sulfonate and fumaric acid; the unsaturated nitrogen is obtained by reaction of an intermediate B and benzaldehyde, and the intermediate B is obtained by reaction of triazole and ethyl chloroacetate; the modified corrosion inhibitor is obtained by carrying out a reaction on potassium thiocyanate, benzoyl chloride and chitosan vanillin Schiff base. The anti-freezing solution prepared by the invention has the advantages of moderate fluidity, good metal corrosion resistance and good anti-freezing performance.
Owner:ORDOS SHENDONG TIANLONG CHEM

Environment-friendly water-based paint remover for tooling as well as preparation method and application of paint remover

The invention relates to the technical field of paint removers, and particularly discloses an environment-friendly water-based paint remover for tools as well as a preparation method and application of the environment-friendly water-based paint remover. The invention provides an environment-friendly water-based paint remover for tools. The environment-friendly water-based paint remover is specifically prepared from 280-320 parts of a main solvent, 40-54 parts of a solubilizer, 30-40 parts of a surfactant, 7-13 parts of a penetrating agent, 130-150 parts of monoethanolamine, 8-12 parts of sulfonic acid, 40-58 parts of caustic soda flakes, 1-5 parts of a thickening agent and 280-320 parts of water. The main solvent is formed by mixing benzyl alcohol and dipropylene glycol monomethyl ether according to the weight ratio of (0.1-1): (1-10); the preparation method of the penetrant comprises the following steps: reacting phthalic anhydride, ethylene glycol and hydroquinone to obtain modified polyester; and then mixing the modified polyester with isooctanol polyoxyethylene ether JFC-3 to obtain the modified polyester. The paint remover prepared by the invention has good paint removal efficiency, and can effectively improve the production efficiency of an automobile coating factory and reduce the comprehensive cost.
Owner:BEIJING BAICHUAN TECH & TRADE CO LTD

Industrial water quota dynamic evaluation method and system based on real-time data

The invention discloses an industrial water quota dynamic evaluation method and system based on real-time data, and relates to the technical field of water quota evaluation. Comprising the following steps: data acquisition: acquiring a water use department of an evaluation factory to obtain a target department, and acquiring past water use information of the target department to obtain past water use data; according to the invention, through a set matching method, the preset water consumption information is obtained by matching the real-time time according to the previous water consumption data, then the preset water consumption quota information is continuously optimized and adjusted through a set optimization adjustment method in cooperation with the real-time data to obtain a water consumption quota information set updated in real time, and through a set influence discrimination method, the water consumption quota information set is accurately determined. Therefore, a subsequent optimization adjustment method can further adjust and optimize all the pre-used water quota information according to one piece of pre-used water quota information, so that the flexibility and evaluation efficiency of dynamic adjustment of the water quota can be improved, and the timeliness of adjustment of the industrial water quota can be ensured; therefore, the operation efficiency of a chemical manufacturing plant is improved.
Owner:ZHEJIANG INST OF HYDRAULICS & ESTUARY

Low-load noble metal catalyst for industrial water electrolysis and preparation method of low-load noble metal catalyst

The invention relates to the technical field of catalysts, and particularly provides a low-load noble metal catalyst for industrial water electrolysis and a preparation method thereof. According to the preparation method, thin-layer two-dimensional layered double hydroxide (LDH) is used as a substrate material, a hydrothermal reaction is performed at a certain temperature and pressure to load noble metals (Ru, Rh, Pd, Ag, Ir, Pt, Au and the like), then washing, impurity ion removal and drying are performed to obtain a target product, the obtained electrocatalyst is ultralow-loading noble metal loaded LDH, the loading amount of the noble metals accounts for 0.1 wt%-0.5 wt%, and the loading amount of the noble metals accounts for 0.1 wt%-0.5 wt%. The prepared electrocatalyst can realize efficient and stable water decomposition with industrial-grade current density. The obtained electrocatalyst has high catalytic activity and durability under industrial conditions; and the preparation process is simple to operate and good in repeatability, and the loading capacity of the noble metal is greatly reduced.
Owner:扬州市常发新能源科技有限公司

Sewage zero-discharge treatment device for filter production line

The utility model discloses a sewage zero-discharge treatment device for a filter production line, and belongs to the field of wastewater treatment. The device comprises an oil removal unit, a reaction unit, a filtering unit, a water production unit, a chemical adding unit, a sludge treatment unit and a concentrated water treatment unit, the feeding unit, the reaction unit, the filtering unit and the water production unit are connected in sequence, and the chemical adding unit is connected with the reaction unit and the filtering unit. The sludge treatment unit is respectively connected with the reaction unit and the filtering unit, the concentrated water treatment unit is connected with the rear end of the filtering unit, the device is used for treating the sewage of the filter production line, the operation is simple, the daily operation is stable, and the effluent quality can meet the water quality of industrial water for recycling urban sewage.
Owner:ZHEJIANG HUANSEN ENVIRONMENTAL TECH CO LTD

Mining dust falling agent for removing hydrogen sulfide underground and preparation method thereof

The invention relates to a mining underground hydrogen sulfide removal dust falling agent and a preparation method thereof, and belongs to the technical field of dust suppression and dust falling. The dust settling agent provided by the invention comprises the following components: 10-15 parts of fatty acid methyl ester sodium sulfonate; 3 to 5 parts of sodium lauryl sulfate; 4 to 6 parts of sodium dodecyl benzene sulfonate; 3 to 5 parts of dodecyl amine; 1-3 parts of sodium bicarbonate; according to the present invention, through the synergistic interaction effect of the surfactant, the dust particles and the liquid are well dispersed and wetted, and the reaction of the sodium bicarbonate and the hydrogen sulfide is promoted so as to increase the dust adsorption efficiency and the hydrogen sulfide gas neutralization effect, such that the technical purpose of the present invention is achieved. The raw materials are easy to obtain, the preparation process is simple and convenient, the cost is low, the effect is remarkable, the working environment of coal miners can be effectively improved, and safety and health of the miners are guaranteed.
Owner:CHINA COAL TECH & ENG GRP SHENYANG ENG CO

Ferrous sulfide cleaning method based on ferrous sulfide cleaning device

The invention relates to a ferrous sulfide cleaning method based on a ferrous sulfide cleaning device, and belongs to the technical field of petrochemical engineering treatment equipment. The method specifically comprises the steps that inspection preparation work before operation is conducted, a PLC control system injects industrial water and passivating agent liquid into a dissolving tank according to a given proportion, an electric pump B is started, the electric pump B can continuously supply liquid into equipment to be cleaned, meanwhile, a solution at the bottom of the equipment to be cleaned flows back into the dissolving tank, and the solution circularly enters and exits from the equipment to be cleaned; and according to the detected parameter change of the iron ion on-line monitor, the PLC control system automatically judges that the cleaning is finished when the change of the iron ion content does not exceed 10% in the latest two hours after the circulating cleaning is performed for 12 hours. The problems that manual matching control of industrial water and passivating agent liquid is not accurate, the iron ion content and the PH value cannot be analyzed on line, whether passivation cleaning is qualified or not cannot be automatically judged, and manual labor investment is large are solved.
Owner:PETROCHINA CO LTD

Chromium-containing wastewater treatment system

The utility model discloses a chromium-containing wastewater treatment system which comprises a concentrated chromium waste liquid treatment unit, a dilute chromium wastewater treatment unit and a recovery treatment unit, a concentrated chromium waste liquid outlet of the unit line is communicated with an inlet of the concentrated chromium waste liquid treatment unit, and a liquid outlet of the concentrated chromium waste liquid treatment unit is communicated with a liquid return port of the unit line; a dilute chromium wastewater outlet of the unit line is communicated with an inlet of the dilute chromium wastewater treatment unit, a concentrated water outlet of the dilute chromium wastewater treatment unit is communicated with an inlet of the concentrated chromium waste liquid treatment unit, and a produced water outlet of the dilute chromium wastewater treatment unit is communicated with an inlet of the recovery treatment unit; a concentrated water outlet of the recovery treatment unit is communicated with an inlet of the concentrated chromium waste liquid treatment unit, and a produced water outlet of the recovery treatment unit is communicated with an industrial water pipeline. The device has the beneficial effects that the concentrated chromium waste liquid treatment unit, the dilute chromium waste water treatment unit and the recovery treatment unit are designed, concentrated chromium waste liquid and dilute chromium waste water are treated in a quality-divided manner, and the treatment manner can reduce the addition of chemicals, improve the utilization rate of the chemicals, reduce the treatment cost, and is green and economical.
Owner:WISDRI ENG & RES INC LTD

Water environment on-line monitoring system

The invention relates to the technical field of water quality analysis, in particular to a water environment on-line monitoring system which comprises the steps of obtaining ammonia nitrogen, total phosphorus and pH value direction identifiers and performing aggregation analysis, identifying trend convergence sections, dividing turning segments and extracting trend features, screening cross trend combinations, concluding jump nodes and identifying interference points. And marking direction mismatch and generating a derailment combination. According to the method, the change of key indexes such as ammonia nitrogen, total phosphorus and pH value is continuously extracted, the load change direction and the cooperation trend are identified, the index fluctuation rhythm and jump nodes are further compared, and the pollution trend structure and direction mismatch combination is extracted, so that potential abnormal sections and interference points are effectively revealed; the identification depth and the time sequence analysis capability of the dynamic pollution in the reclaimed water conveying process are enhanced, so that the urban resident water is treated to form the reclaimed water, the water quality is stable and qualified after the reclaimed water is conveyed to an industrial park, and more accurate and structured monitoring support is provided for the water quality compliance of the industrial water.
Owner:INNER MONGOLIA ENVIRONMENTAL PROTECTION INVESTMENT ONLINE MONITORING CO LTD

Three-way ball valve

The three-way ball valve comprises a valve body, a valve rod and a ball core, an inlet and two outlets are formed in the valve body, an L-shaped channel is formed in the ball core, the channel comprises two channel openings, a filter cover is arranged outside the ball core, a through hole consistent with the channel openings in diameter is formed in the filter cover, and a filter screen covers the through hole. A first valve seat is arranged at the inlet, a second valve seat is arranged at the outlet, a control rod parallel to the valve rod is arranged on the filter cover, and a through cavity allowing the control rod to penetrate through and rotating in the circumferential direction of the valve rod is formed in the valve body. A fixing part for fixing the control rod and the valve body is arranged between the control rod and the valve body, the filter cover can be controlled to rotate along the ball core through the control rod, and after the filter cover rotates until the through hole is aligned with the inlet, the filter cover is fixed through the fixing part, and industrial water entering from the inlet can be filtered.
Owner:温州睿佳阀门有限公司

Efficient energy-saving intelligent industrial water heater

The invention relates to an efficient energy-saving intelligent industrial water heater which comprises an air energy heat pump main machine and a water storage device, the air energy heat pump main machine communicates with the water storage device through a water pipe, the water storage device comprises a water storage assembly and a heat collection assembly, and the heat collection assembly is arranged above the water storage assembly. The water storage assembly comprises an outer shell and an inner shell, the inner shell is arranged in the outer shell, a heat preservation unit is arranged between the inner shell and the outer shell, and the heat preservation unit comprises a heat insulation layer and a water guide pipe. A temperature barrier is formed on the periphery of the inner shell, so that the heat loss speed in the inner shell is slowed down, the energy-saving effect is achieved, intelligent switching of heat collection and electric heating is achieved through real-time water temperature monitoring, and the water temperature maintaining efficiency is improved.
Owner:YINGLEWEI ENVIRONMENTAL PROTECTION TECH (CHANGZHOU) CO LTD

Industrial water demand prediction method based on big data mining and physical mechanism dual drive

The invention relates to the technical field of hydraulic engineering and computer application, and particularly provides an industrial water demand prediction method based on big data mining and physical mechanism dual-drive, and the method comprises the steps: carrying out the space-time alignment and feature anchoring of a multi-source database by taking an industrial water full-cycle element as an index; establishing an inter-index nonlinear semantic association network; multi-dimensional indexes in the nonlinear semantic association network are input into the dynamic entropy weight redundancy elimination model, redundant features are eliminated, and an industrial water sensitive factor set is generated; constructing an industrial water constitutive equation with explicit interpretability in combination with physical correlation characteristics of the core control chain; and performing bidirectional embedding with a social economic parameter prediction module to form a double-engine prediction architecture which takes a physical mechanism equation as a core driving force and takes a real-time data stream as a dynamic corrector, thereby realizing mechanism-data dual-drive prediction of industrial water demand evolution. According to the method, the problem that a prediction result of a traditional data-driven model in an industrial scene is not traceable is solved.
Owner:ZHENGZHOU UNIV

System and method for capturing CO2 in alumina roasting flue gas and utilizing waste heat

The invention provides a system and method for capturing CO2 in alumina roasting flue gas and utilizing waste heat, and belongs to the field of CO2 capturing. The system comprises a second-stage flue gas cooler, a gas inlet of the second-stage flue gas cooler is communicated with a high-temperature flue gas outlet, industrial water is introduced into a liquid inlet of the second-stage flue gas cooler, and the second-stage flue gas cooler is used for carrying out heat exchange on high-temperature flue gas and the industrial water to recover heat so as to obtain cooled gas and hot water; an inlet of the cooling and dehumidifying tower is communicated with a gas outlet of the two-stage two-stage flue gas cooler, and the cooling and dehumidifying tower is used for cooling the cooling gas again to obtain saturated feed gas; an inlet of the compressor is communicated with an outlet of the cooling and dehumidifying tower, and the compressor is used for increasing the pressure of the saturated feed gas to a set pressure; an inlet of the PSA device is communicated with an outlet of the compressor, and the PSA device is used for capturing CO2 in the saturated feed gas with the set pressure to obtain a CO2 product. Therefore, the capture efficiency of CO2 in the alumina roasting flue gas and the utilization efficiency of waste heat are improved at the same time.
Owner:CHALCO SHANDONG CO LTD

Process industry whole membrane method water treatment operation system

The invention discloses a whole-membrane-process water treatment operation system for a process industry. Comprising a raw water pump, a self-cleaning filter, an ultrafiltration device, an ultrafiltration water tank, an ultrafiltration water pump, a security filter, a first-stage water feeding pump, a first-stage reverse osmosis device, a water pump, a security filter, a second-stage water feeding pump, a second-stage reverse osmosis device, a fresh water tank, an EDI water feeding pump, a security filter and an EDI device which are sequentially connected through pipelines, the system is composed of an intelligent operation system of an ultrafiltration membrane system, an intelligent operation system of a reverse osmosis membrane system, an intelligent operation system of an EDI membrane system and dosing and cleaning auxiliary equipment. The system not only collects and stores production operation data in real time, visually displays the operation state of the membrane treatment equipment and gives an alarm in time, but also realizes accurate dosing control and energy-saving optimized operation by automatically diagnosing the membrane-method water treatment system equipment, so that the safety and economical efficiency of whole-process industrial water production are realized.
Owner:HUADIAN WATER TECH CO LTD

Water purifier with filter membrane service life monitoring and alarming functions

The invention discloses a water purifier with filter membrane service life monitoring and alarming functions, and belongs to the technical field of water treatment equipment. The water purifier comprises a water pool combination, a purified water storage tank, a cyclone desander, an emptying pipe, a chemical box, an electric control box, a filter, a flow meter, a membrane shell, a centrifugal pump, an ultraviolet sterilizer and an overflow pipe. A flow meter, a filter and a membrane shell are connected with an electric cabinet, a filter membrane service life monitoring model is constructed, and the filter inlet and outlet pressure difference, the accumulated water purification amount and the water quality change parameter serve as service life judgment variables, so that real-time monitoring of the service life of the filter membrane is achieved. A service life prediction and threshold value alarm module is arranged in the electric control box, the filter membrane blocking degree is evaluated according to monitoring data, service life prediction is carried out, and when the service life of the filter membrane is close to a threshold value or meets a replacement condition, sound and light or remote communication alarm prompt is automatically sent out. The method can effectively reduce the abnormal use risk of the filter membrane, improve the water purification operation stability and the filter membrane replacement scientificity, reduce the maintenance cost, and is suitable for an industrial water purification system.
Owner:YANCHENG OULEPU WATER PURIFICATION EQUIP TECH CO LTD

Mine water resource comprehensive utilization system and method based on multi-target coupling

The invention relates to the technical field of mine water treatment and utilization, and discloses a mine water resource comprehensive utilization system and method based on multi-target coupling, and the system comprises a multi-source mine water collection module which collects mine water in different underground areas; the hierarchical storage and adjustment module is used for performing hierarchical storage and adjustment on the mine water; the target guiding purification module is used for carrying out targeted purification treatment on the adjusted mine water to generate standard industrial water to be used or irrigation water to be used; the multi-scene utilization module is used for conveying the industrial to-be-used water or the irrigation to-be-used water which reaches the standard to a corresponding water utilization scene and carrying out industrial or agricultural scene water supply utilization; the intelligent coupling regulation and control center module is used for establishing a dual-objective function for maximizing the water resource utilization rate and minimizing the system energy consumption according to the monitoring state data of all the modules and the initial system control instruction and constraint conditions, and performing iterative solution by adopting a multi-objective particle swarm optimization method to generate an optimal control instruction; the utilization rate of mine water resources is greatly increased.
Owner:CENT FOR HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CGS +1

Sewage comprehensive utilization system

The utility model relates to a sewage comprehensive utilization system which comprises a circulating cooling water system and a first sewage utilization system, and the first sewage utilization system comprises a drying condensate water pipeline and a deacidification wastewater pipeline connected into the drying condensate water pipeline; wherein the drying condensate water pipeline is used for collecting condensate water, and the condensate water is obtained from wet materials; the deacidification wastewater pipeline is used for collecting deacidification wastewater; the condensed water is used for diluting the deacidified wastewater, and the diluted deacidified wastewater is used as supplement of industrial water and enters a circulating cooling water system. According to the utility model, vaporous water generated in the material drying equipment is introduced into the condensing equipment to be liquefied to obtain condensed water, the condensed water is mixed with the deacidified wastewater, the deacidified wastewater is diluted to reduce the chlorine salt content, and the diluted deacidified wastewater is used as a part of circulating cooling water, so that the circulating cooling water is recycled. The purposes of effectively recycling water vapor and deacidified wastewater evaporated by drying materials, saving water for factories, reducing the scale of a sewage treatment system and reducing the initial investment are achieved.
Owner:PUMA (SHANGHAI) ENVIRONMENTAL TECH CO LTD

Industrial circulating cooling water treatment corrosion and scale inhibitor and preparation method thereof

The invention relates to a corrosion and scale inhibitor for industrial circulating cooling water treatment and a preparation method thereof, in particular to a corrosion and scale inhibitor suitable for treatment of industrial circulating cooling water with different water qualities, and belongs to the technical field of water treatment chemicals. The corrosion and scale inhibitor is composed of an organic phosphoric acid corrosion inhibitor, a bio-based carboxylic acid copolymer, natural polyol, an environment-friendly chelating agent, a dispersant, a corrosion inhibition auxiliary agent and deionized water. In combination with a multi-parameter water quality analysis model, formula self-adaptive adjustment based on indexes such as calcium and magnesium ions, pH value, alkalinity and silicate of the water sample can be realized. The prepared corrosion and scale inhibitor has good compatibility and high efficiency in various typical industrial water systems, the corrosion inhibition rate is larger than or equal to 95%, and the scale inhibition rate is larger than or equal to 95%. The invention provides a green, efficient and broad-spectrum adaptive water treatment solution which is suitable for a circulating cooling water system in the industries of electric power, metallurgy and petrochemical industry.
Owner:FUZHOU YINGKE WATER TREATMENT ENG CO LTD

Novel curtain grouting material and preparation method thereof

PendingCN120157410ASlagKaolin clay
The invention belongs to the technical field of underground engineering plugging materials, and particularly relates to a novel curtain grouting material and a preparation method thereof.The grouting material is obtained by mixing a component A and a component B. The component A comprises 40-80 parts of Portland cement, 10-30 parts of metakaolin powder, 10-30 parts of granulated blast furnace slag and 80-120 parts of tap water; the component B is prepared from 10 to 30 parts of industrial-grade water glass. The preparation method of the novel curtain grouting material comprises the following steps: S1, weighing a component A material in parts by weight, mixing, adding tap water, and uniformly stirring to obtain component A slurry; and S2, weighing the material of the component B in parts by weight, adding the material of the component B into the slurry of the component A, and condensing after full contact to obtain the novel curtain grouting material. The grouting slurry prepared by compounding the metakaolin, the blast furnace slag and the Portland cement has a relatively small bleeding rate, the stability of the slurry is improved, a double-liquid slurry stone body obtained by mixing the grouting slurry with the industrial water glass has relatively high mechanical strength, the corrosion resistance is better than that of common cement-water glass, and meanwhile, the service life of the grouting slurry is prolonged. By adopting the metakaolin and the blast furnace slag, the use amount of the cement is reduced, on one hand, the pollution of cement production to the environment is reduced, on the other hand, the engineering cost is reduced, and good environment-friendly and economic values are achieved.
Owner:CHINA SOUTH-TO-NORTH WATER DIVERSION GROUP JIANGHAN WATER NETWORK CONSTRUCTION DEVELOPMENT CO LTD +1

A ph electrode rinsing device, desulfurization absorption tower system and control method

This invention discloses a pH electrode flushing device, a desulfurization absorption tower system, and a control method. The pH electrode flushing device includes an industrial water flushing pipeline filter, a check valve, an industrial water inlet manual valve, and an industrial flushing solenoid valve connected in sequence. An annular flushing opening pipe extending obliquely into the electrode flow tank is provided at the upper part of the electrode flow tank. Multiple sets of flushing nozzles are provided on the annular flushing opening pipe. The annular flushing opening pipe is connected to the industrial water flushing solenoid valve. An inlet pipe is provided on one side of the lower part of the electrode flow tank. A drain pipe is provided at the lower part of the electrode flow tank. The bottom of the drain pipe is connected to the side wall of the top of the electrode flow tank through the flow tank overflow pipe. A pH electrode is provided at the top center of the electrode flow tank. It has the advantages of high monitoring accuracy, more stable operation, fast adjustment response, and small control fluctuation.
Owner:ZHONGTIAN IRON & STEEL GRP (NANTONG) CO LTD +1