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371 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

A catalytic combustion device for industrial waste gas treatment

This utility model relates to the field of catalytic combustion device technology, and discloses a catalytic combustion device for industrial waste gas treatment, comprising: a catalytic combustion chamber, wherein a waste gas supply pipe is installed at the inlet end of the catalytic combustion chamber; an outlet pipe is disposed at the top outlet of the catalytic combustion chamber, a hot gas supply pipe is installed at the outlet end of the outlet pipe, a gas storage tank is installed at the outlet end of the hot gas supply pipe, and a dilution gas pipe is installed at the outlet of the gas storage tank. By mixing preheated air in the gas storage tank with high-concentration waste gas through the dilution gas pipe, the concentration of high-concentration waste gas can be reduced. Simultaneously, the air is heated, which reduces interference with the waste gas temperature and prevents high-concentration waste gas from directly entering the catalytic combustion chamber. This effectively prevents a sudden temperature rise inside the catalytic combustion chamber, avoids localized high temperatures inside the catalytic combustion chamber due to waste gas concentration approaching or exceeding the lower explosive limit, and improves the safety performance of the device.
Owner:JIANGSU HONGSONG TECH MFG CO LTD

Methods for synthesizing aromatic compounds using ionizing radiation based on N2O, and methods for synthesizing aromatic compounds using industrial waste gas.

PendingCN122355789AAbsorbed dose ratePtru catalyst
This application proposes methods for synthesizing aromatic compounds using ionizing radiation based on N₂O, and methods for synthesizing aromatic compounds using industrial waste gas. The method includes: placing benzene and a combined gas containing N₂O in a sealed container, and adjusting the volume of the combined gas to bring the benzene in the sealed container to its saturated vapor pressure; irradiating the sealed container with radiation to cause the benzene to react and yield the aromatic compounds, wherein the radiation includes X-rays, gamma rays, or electron beams, the energy range of which is 0.0110 MeV, and the absorbed dose rate is 0.1 Gy / min to 1000 kGy / min. This method can synthesize aromatic compounds such as phenol in one step using ionizing radiation based on N₂O without the use of a catalyst, achieving precise and high-value utilization of N₂O.
Owner:PEKING UNIV

An apparatus for converting industrial waste residues into geopolymer

The utility model discloses an equipment for converting industrial waste slag into geopolymer, including drying box, the inner bottom surface of drying box is inclined plane, and a plurality of shovel plates are pasted to the inner bottom surface of drying box, the top surface of vertical board of shovel plate is connected with arc plate, and the top surface of arc plate is fixedly connected with the stirring rod in drying box, and the top surface of the flow guide orifice plate is connected through the connecting rod between the inner top surface of drying box, and the inner concave arc surface of arc plate is arranged and is inclined to set up to the direction of the direction of approaching drying box inlet port, and the inner arc surface of flow guide orifice plate is ladder shape, and the stirring rod on drying box is installed shovel plate and is shovelled up the raw material of drying box inner bottom surface and is transported to flow guide orifice plate through arc plate, and the raw material slowly falls along flow guide orifice plate, and the flow path of raw material is followed, thereby prolonging the time of raw material in drying box and being convenient for the full drying of raw material, and the drying efficiency of raw material is improved.
Owner:INNER MONGOLIA SUYUE TECHNOLOGY CO LTD

Process for the preparation of anhydrous calcium chloride in the form of spheres

PendingCN122164359AOther chemical processesCalcium/strontium/barium chloridesPhysical chemistryMoisture absorption
This invention discloses a method for preparing anhydrous spherical calcium chloride, relating to the field of anhydrous spherical calcium chloride technology. The preparation method includes 1) raw material pretreatment; 2) premix preparation; 3) stepwise mixing and granulation; and 4) curing and drying. This invention solves the key problem of moisture absorption and crusting of anhydrous calcium chloride by utilizing industrial waste such as fly ash to construct a "skeleton-gel-pore" composite structure. The product has a several-fold longer anti-crusting time, more uniform and lasting moisture absorption, high particle strength, and very little dust. The raw material cost is low, and the reaction is controllable and easy to industrialize, achieving a balance between high performance, low cost, and green environmental protection.
Owner:CHONGQING LUYU MINING DEV CO LTD

An exhaust gas adsorption device having a honeycomb activated carbon layer

ActiveCN224442564UActivated carbonHoneycomb
This utility model relates to the field of industrial waste gas treatment technology, specifically a waste gas adsorption device with a honeycomb activated carbon layer, including an adsorption plate body; a honeycomb plate located within the adsorption plate body; a frame fitted onto the surface of the adsorption plate body; and a mounting shell located on one side of the adsorption plate body. Employing a spring-loaded elastic connection and an adjustable limiting structure, it effectively solves the problems of easy loosening of bolts and displacement due to vibration in traditional adsorption devices. The synergistic action of the first and second springs dynamically adjusts the fixed position of the adsorption plate, ensuring its stability even under waste gas impact or equipment vibration. Simultaneously, the protrusions, inclined side baffles, and limiting plate enhance the device's resistance to displacement and extend its service life.
Owner:CHENGDU YEQIN ENVIRONMENTAL PROTECTION TECH CO LTD

Industrial waste residue data processing method and system

This invention provides a method and system for processing industrial waste residue data, involving data processing technology. The method involves filtering a waste residue recycling database based on user-defined dimensions to obtain spliced ​​recycling plates. The method then evaluates the matching properties of irregularly shaped edges at the same height within the spliced ​​recycling plates. If the evaluation result is a match, customized cutting data for each spliced ​​recycling plate is obtained based on the irregular edges. If the evaluation result is a mismatch, the waste residue recycling database is filtered based on the irregular depth of the irregular edges to obtain transition fixing plates. Customized cutting data for the transition fixing plates is then determined based on the irregular edges. The customized cutting data is sent to an operating terminal, which cuts and splices the corresponding recycling plates according to the customized cutting data to obtain customized objects. This method allows for customized cutting and splicing of irregularly shaped recycling plates, reducing material waste.
Owner:NANJING COMM INST OF TECH

Acetate-producing strain and method for producing acetate using syngas and application thereof

PendingCN122326490ABiotechnologyEngineering
This invention belongs to the field of bioengineering and carbon one-carbon resource utilization technology, specifically relating to a bacterial strain that produces acetic acid and acetate through syngas fermentation, as well as its applications and methods. The strain is *Clostridium yongdarii* (…). Clostridium ljungdahlii SL40, deposited at the Guangdong Provincial Microbial Culture Collection Center (GDMCC No. 67679) on January 15, 2026, represents a strain that achieves highly efficient H2 / CO2 conversion in syngas, with a maximum CO2 utilization rate of 1.8 g / L / h. The anaerobic fermentation process produces zero pollutants, enabling resource utilization and carbon reduction of industrial waste gas, and providing a new technological pathway for carbon resource conversion.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Environment-friendly low-carbon PVC material and preparation process thereof

The application provides an environment-friendly low-carbon PVC material and a preparation process thereof, and relates to the technical field of polymer materials.The material comprises, in percentage by mass, 45-55% of PVC resin powder, 25-35% of environment-friendly plasticizer, 8-20% of negative-carbon calcium carbonate and 5-12% of stabilizer.The negative-carbon calcium carbonate is prepared through mineralization reaction of industrial waste residues and industrial discharged carbon dioxide.Aiming at the color fluctuation problem between batches of the recycled filler, the application provides a preparation process comprising an online dynamic color adjusting closed-loop control system, the raw materials are filed, the material color is monitored in real time online, the Delta E is calculated based on a color difference model, the PID control algorithm is used to dynamically add color masterbatches for real-time correction when the preset threshold is exceeded, and the final product is preheated and verified for color change.The application realizes the reuse of waste resources and carbon emission reduction, solves the problem of inconsistent color caused by the negative-carbon calcium carbonate, ensures the stability of the color and performance between batches of the material, and is suitable for industrial large-scale production.
Owner:BEIJING POP MART CULTURAL & CREATIVE CO LTD +2

A waste gas sampling device for industrial waste gas detection

The utility model relates to industrial waste gas sampling technical field discloses a kind of waste gas sampling devices for industrial waste gas detection, including bottom plate, the top front side of bottom plate is fixedly connected with suction pump, the input end of suction pump is communicated with through pipe, the top end of through pipe is communicated with suction port, the output end of suction pump is communicated with connecting pipe, the outer wall of connecting pipe has connecting plate, the bottom of connecting plate is fixedly connected with one-way valve, the rear end of connecting pipe is communicated with waste gas bucket, the top of bottom plate is fixedly connected with pickup placement mechanism, and the pickup placement mechanism is used for sample pickup placement.In the utility model, there is suction pump on the bottom plate, suction pump connects through pipe, the top of through pipe has suction port, suction pump sucks waste gas from suction port into through pipe, transports to connecting pipe, after waste gas enters, one-way valve will rotate upwards, waste gas enters waste gas bucket, is stored, and the gas capacity in waste gas bucket is controlled by one-way valve.
Owner:YUNNAN TIANBO ENVIRONMENTAL TESTING CO LTD

Industrial waste incineration equipment

ActiveCN224284623UReduce the risk of high temperature burnsIncinerator apparatusEnvironmental engineeringMechanical engineering
This utility model discloses an industrial waste incineration device comprising an incineration component, a feeding component, an adjusting mechanism, and an agitating mechanism. The feeding component is connected to one side of the incineration component. The adjusting mechanism is located inside the incineration component and includes a drive component, a mounting plate, a hinge plate, a filter screen, a stacking component, a connecting frame, and a support frame. The drive component is hinged at both ends to the incineration component and the mounting plate via the hinge plate. The filter screen is mounted on one side of the mounting plate and hinged to the incineration component, with one end of the filter screen penetrating into the interior of the incineration component. Two sets of filter screens are hinged together via the connecting frame. The support frame is installed inside the incineration component, positioned below the filter screen. The stacking component is located inside the incineration component. Therefore, while ensuring complete combustion of industrial waste, this invention eliminates the need for workers to clear the accumulation at the bottom of the incineration device, effectively reducing the risk of workers suffering burns from high temperatures.
Owner:XUZHOU HONGYU ENVIRONMENTAL TECH CO LTD

A system for collecting and processing VOCs in the production of automotive interior parts

The present application relates to the technical field of industrial waste gas treatment, and discloses a VOCs collecting and processing system for automobile interior part production, which comprises a waste gas transmission main path and a control and execution center. The waste gas transmission main path is integrated with a spiral pneumatic delay module for building a forced time buffer area and a flow field shaping module for building a plug flow flow field, and is connected with a shunt unit at the end. The control and execution center generates a virtual gas envelope object in response to a production process signal, and performs real-time integral tracking on the virtual gas envelope object by using flow velocity data in the plug flow flow field. When the tracking position of the virtual gas envelope object reaches the shunt limit, the shunt unit is driven to execute high-low concentration flow path switching. The present application solves the problem of waste gas escape caused by the response lag of the execution mechanism and flow velocity fluctuation by combining physical delay with virtual tracking, and realizes accurate quality collection of VOCs waste gas.
Owner:KAIFENG SHANGWEI AUTOMOTIVE TRIM CO LTD

An ai-based core energy storage collaborative intelligent smelting and power generation technical method and an operation management system thereof

The application discloses a kind of based on AI's core energy storage collaborative intelligent smelting and power generation technical method and its operation management system, it is related to industrial energy comprehensive utilization technical field.The application is by being changed into energy storage body to smelting furnace, incinerator, steam boiler, and is combined with unique core tank structure, realize the efficient storage of wind energy, solar energy, biomass energy and industrial waste heat;Through end-edge-cloud three-level AI management platform, dynamically allocate energy input path, intelligent switch smelting, power generation, peak shaving three heat release modes, form collection-storage-conversion-usage closed loop.The application makes energy storage power station construction cost drop 80%, energy utilization efficiency is promoted to more than 85%, grid peak shaving response time is less than or equal to 1 second, smelting energy consumption is reduced by 25%-30%, investment recovery period is shortened to 3-5 years, solve renewable energy and industrial waste heat difficult to store, energy storage power station cost is high, grid peak shaving is difficult and other pain points, applicable to steel, non-ferrous metallurgy and industrial park and other multiple scenes.
Owner:防城港市港口区壮德科技工作室

An Al-doped two-dimensional MnO2 adsorption structure for SO2 immobilization and its application

PendingCN122352194AToxic gasChemical adsorption
The application discloses an Al-doped two-dimensional MnO2 adsorption structure for SO2 immobilized adsorption and application thereof. The Al-doped two-dimensional MnO2 adsorption structure for SO2 immobilized adsorption comprises a two-dimensional MnO2 monolayer as a substrate, and Al modified atoms on H sites on the surface of the substrate, wherein the doping concentration of the Al modified atoms is 2% to 4%. A stable Al-O interaction interface is formed between the Al modified atoms and O atoms in SO2 molecules, so that a strong chemical adsorption interface dominated by ionic bond interaction is formed between SO2 and the adsorption structure; in a preferred configuration, the adsorption energy of the adsorption structure for SO2 is -2.154 eV, the interface charge transfer amount is -0.49 e, and the Al-O interaction distance is 1.737 Å. The adsorption structure can be used for irreversible capture, enrichment and immobilized adsorption of SO2, and industrial waste gas desulfurization and capture of toxic gas containing sulfur.
Owner:CHONGQING UNIV

A method for synthesizing 1-bromotrifluoropropene

This invention relates to "a method for synthesizing monobromotrifluoropropylene," belonging to the field of organic chemical synthesis. In this method, pentachloropropane (CCl3-CH2-CHCl2), bromine gas (Br2), and anhydrous hydrogen fluoride (HF) are reacted with a fluorination catalyst to generate monobromotrifluoropropylene (CF3-CBr=CH2) in the gas phase. This invention utilizes inexpensive and readily available raw materials; the product separation and purification are simple; it is easy to industrialize; and it generates minimal industrial waste.
Owner:CHINA UNIV OF MINING & TECH (BEIJING) +1

A slagging mechanism of an industrial waste oil reaction kettle

The utility model relates to a slagging mechanism field, concretely relates to a slagging mechanism of industrial waste oil reaction kettle, including the slagging bucket for the reaction kettle industrial waste oil slagging, the upper cover is screwed on the top of slagging bucket. The utility model relates to a slagging mechanism of industrial waste oil reaction kettle, through the setting of slagging bucket, drive motor, connecting shaft, transmission rod, stirring vane, heating tube, discharge port and the conveyance spiral vane, the anti -blocking property in the slagging process is strengthened, the slag that the reaction kettle discharged enters the slagging bucket, through the opening drive motor switch, drives the connecting shaft and the transmission rod of lower butt joint rotates, when transmission rod rotates and drives stirring vane rotation stirring, avoid the inside to cause the situation of jam, simultaneously transmission rod rotates in the process and drives the conveyance spiral vane inside discharge port rotation, can stably convey and discharge the impurity, the heating tube in the inner chamber of the slagging bucket is matched, maintains the waste oil temperature, ensures its fluidity, avoids the viscosity sudden increase or solidification and jams the slagging bucket.
Owner:WUXI SUNDELI PETROCHEMICAL CO LTD

Low-carbon composite cementitious material for deep foundation engineering and preparation method thereof

ActiveCN119954478BCarbon compositesPhosphate
The application discloses a kind of low-carbon composite cementitious material for deep foundation pit engineering and preparation method thereof, belong to building material technical field.The low-carbon composite cementitious material for deep foundation pit engineering, including following weight parts raw materials: 70-90 parts of slag, 5-10 parts of cement, 10-30 parts of phosphogypsum, 5-20 parts of modified secondary aluminum ash, 2-10 parts of modified 5A zeolite, 5-10 parts of organic curing agent, 1-5 parts of carbide slag, 0.03-0.2 parts of alcohol amine early strength agent, 0.5-8 parts of potassium dihydrogen phosphate, 2-8 parts of magnesium oxide, 2-3.5 parts of acid activator, 20-50 parts of water, by making full use of industrial waste slag, secondary aluminum ash, carbide slag, phosphogypsum, reduce resource waste and environmental pollution, convert industrial solid waste into environmental protection building material, realize the diversification of product, functionalization, green, can replace traditional reinforced concrete material, significantly reduce the carbon emission in deep foundation pit engineering, help building industry low-carbon transformation.
Owner:WUHAN GEOLOGICAL SURVEY FOUNDATION ENG CO LTD

A filtrate collection device for industrial waste alkali treatment

This utility model discloses a filtrate collection device for industrial waste alkali treatment, relating to the field of industrial waste alkali treatment technology. It includes a waste alkali collection tank, a filter box, a diversion pipe, a filtrate collection tank, an impurity filtration assembly, a collection tank level gauge, and an automatic control cabinet. This utility model effectively removes large and small particulate impurities from waste alkali, improving the purity of the filtrate. The PLC controller is used in conjunction with the waste alkali level gauge, collection tank level gauge, waste liquid pump, and outlet pump for coordinated control, achieving automation of the filtrate collection process and avoiding the risk of filtrate overflow. The use of an anti-corrosion coating effectively extends the service life of the equipment. The filtered filtrate is transported to the production unit for reuse via the outlet pump, realizing resource recycling and reducing production costs. The use of this utility model significantly improves the efficiency and safety of waste alkali treatment, reduces environmental pollution and resource waste, and has broad application prospects and significant economic benefits.
Owner:DALIAN HANNUO ENG TECH CO LTD

Heat pipe waste heat recovery finned heat exchanger structure

This utility model discloses a heat pipe waste heat recovery finned heat exchanger structure, including a lower shell, a sealing plate at the upper end of the lower shell, an upper shell on the sealing plate, a first mounting cavity in the upper shell, and a second mounting cavity in the lower shell. Heat exchange components are installed in both the first and second mounting cavities. This utility model achieves efficient heat exchange between high-temperature flue gas and low-temperature air by placing the evaporation and condensation sections of the heat pipe separately within the upper and lower shells, combined with a finned assembly and a baffle structure. The inclined installation of the heat pipe and the non-vertical angled baffle design significantly improve heat exchange efficiency and airflow uniformity. The flange and sealing plate structure ensure system sealing and prevent heat leakage. The overall structure is compact, easy to maintain, and suitable for industrial waste heat recovery scenarios.
Owner:苏州中用环保科技有限公司

A method for synergic resource utilization of zinc-aluminum alloy welding slag and waste hydrochloric acid for hot galvanizing

This invention provides a method for the synergistic resource utilization of zinc-aluminum alloy welding slag and hot-dip galvanizing waste hydrochloric acid. The synergistic resource utilization method includes the following steps: (1) mixing zinc-aluminum alloy welding slag and hot-dip galvanizing waste hydrochloric acid, and performing dissolution and neutralization treatment to obtain a first treatment liquid; (2) extracting the first treatment liquid to obtain an extract and a raffinate; (3) back-extracting the extract to obtain a mixture of zinc chloride and ammonium chloride; and then performing evaporation and crystallization treatment to obtain zinc ammonium chloride; and finally, aging the raffinate to obtain polyaluminum ferric chloride. The synergistic resource utilization method of this invention is simple to operate, has low processing costs, and realizes the synergistic treatment of industrial waste zinc-aluminum alloy welding slag and hot-dip galvanizing waste hydrochloric acid, which has good economic and environmental benefits and is suitable for large-scale promotion and application.
Owner:CENTILLION ENVIRONMENT & RECYCLING (WUXI) CO LTD

Carbon-negative concrete pole with stress self-sensing and damage self-repairing functions

This invention relates to the field of building materials and civil engineering, and in particular to a negative carbon concrete pole with stress self-sensing and damage self-repair functions. The pole includes a smart negative carbon concrete pole body, with a self-sensing monitoring module internally and an external auxiliary fixing structure externally. The pole body is made of carbonized cured steel slag concrete. The self-sensing monitoring module includes a conductive fiber mesh and repair agent microcapsules. This invention integrates three cutting-edge technologies—negative carbon properties, self-sensing, and self-repair—to create a new type of infrastructure material with autonomous intelligence. It achieves real-time monitoring and early warning of the pole's health status throughout its entire life cycle, greatly improving safety. The self-repair mechanism extends the pole's service life, reducing maintenance costs and resource consumption. Simultaneously, it utilizes industrial waste and carbon dioxide, achieving a negative carbon environmental protection goal and meeting the requirements of sustainable development.
Owner:ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +1

ABS high-value utilization method

PendingCN122071602APlastic recyclingAppliance recyclingProcess engineering
The invention provides an ABS (Acrylonitrile Butadiene Styrene) high-value utilization method which comprises the following steps: preparing a household appliance recycled ABS crushed material, and obtaining the performance of the household appliance recycled ABS crushed material; the household appliance recycled ABS crushed material is extracted from waste household appliances; preparing the industrial and waste plastic ABS crushed material, and obtaining the performance of the industrial and waste plastic ABS crushed material; the industrial and waste plastic ABS crushed material is extracted from ABS industrial and waste plastic; obtaining the performance of the ABS new material; and compounding a formula containing at least one of the household appliance recycled ABS crushed material, the industrial and waste plastic ABS crushed material and the ABS new material according to the performance requirements of the product to be processed. The formula of the household appliance recycled ABS crushed material, the industrial waste plastic ABS crushed material and the ABS new material is determined according to the performance of the to-be-processed product, the advantage of low cost of the household appliance recycled ABS crushed material and the good mechanical performance of the industrial waste plastic ABS crushed material are utilized, and preparation of the low-cost and high-performance to-be-processed product is achieved.
Owner:ZHUHAI GREE GREEN RESOURCES RECYCLING CO LTD +1

A waste heat recovery heat pump system for industrial exhaust steam

ActiveCN224517503UCooling towerThermodynamics
The present disclosure relates to the technical field of heat pump, and one embodiment of the present disclosure provides an industrial waste steam waste heat recovery heat pump system, which comprises a heat pump and a treatment box, the treatment box is arranged outside the water pump, an air inlet pipe and a water inlet pipe are arranged on the treatment box, an air inlet filter assembly is arranged at one end of the air inlet pipe, the water inlet pipe is connected with the heat pump, a waste heat recovery assembly is arranged in the treatment box, the waste heat recovery assembly comprises an inner plate arranged in the treatment box, a plurality of water channels are formed in the inner plate, main water pipes and auxiliary water pipes are arranged at two ends of the top of the inner plate respectively, and the auxiliary water pipes are connected with the water inlet pipe. Through the above technical scheme, the technical problem that the efficiency is very low in the prior art, a large amount of waste steam waste heat is wasted without being fully recovered, a large amount of cooling water is consumed in the process, the continuous operation of the circulating pump and the cooling tower leads to high power consumption, and the production cost of enterprises is greatly increased is solved.
Owner:TONGFANG KAWASAKI ADVANCED ENERGY SAVING MACHINE

A method for treating a silicic acid-containing acid gas

This invention belongs to the field of industrial waste gas treatment technology and discloses a method for treating siliceous acidic gases. It addresses the challenge of treating acidic waste gases containing hydrogen fluoride and submicron silicon particles generated during tantalum-niobium hydrometallurgical processes, solving the problems of low purification efficiency, easy crystallization and clogging, agglomeration of active components in absorbent materials, and high operating costs associated with traditional processes. The method converts the siliceous acidic gas into an acidic liquid through absorption by deionized water in a pre-washing tower. A mesoporous alumina-zinc-based composite absorbent material synthesized using PAA micelles as a soft template is then added. After pH adjustment and stirring, purification is completed, followed by filtration and separation. This invention utilizes the spatial barrier effect of PAA micelles to inhibit particle agglomeration and increase the exposure rate of active sites. The composite absorbent material achieves a synergistic effect of silicon capture and defluorination, eliminating the need for high-dose reagents, resulting in high purification efficiency, strong system stability, and effective prevention of equipment clogging and corrosion. It is suitable for the efficient and environmentally friendly treatment of siliceous acidic waste gases from tantalum-niobium hydrometallurgical processes.
Owner:HENGYANG KING XING LIFENG NEW MATERIALS

An industrial waste gas purification system and purification process

PendingCN122141379AElectrostatic separationUsing liquid separation agentMicro nanoWaste heat recovery unit
The present application relates to the technical field of waste gas treatment, and discloses an industrial waste gas purification system and a purification process, which comprises, in sequence, a spray main pipe unit, a vertical spray unit, a multi-pass condensation unit, an electrostatic tower dust removal unit, a discharge unit and a control system, a waste heat recovery unit is arranged on the upstream side of the spray main pipe unit, and a plasma deodorization unit or a micro-nano bubble deodorization unit is arranged between the electrostatic tower dust removal unit and the discharge unit. The purification process is performed in the order of waste heat recovery, main pipe spraying, vertical spraying, multi-pass condensation, pulse electrostatic dust removal, plasma deodorization or micro-nano bubble deodorization. The present application improves the heat exchange efficiency by placing the waste heat recovery unit in the front position, reduces the energy consumption of the subsequent cooling treatment, improves the dust removal efficiency and reduces the energy consumption by using the nanosecond pulse high-voltage electrostatic dust removal technology, and realizes efficient removal of pollutants by combining plasma deodorization or micro-nano bubble deodorization, and has the characteristics of energy saving, high efficiency, safety and reliability.
Owner:SHAOXING XINXIN ENVIRONMENTAL PROTECTION TECH CO LTD

A lime slurry reuse system and method

ActiveCN120681898BSludgeSlurry
This invention discloses a lime slurry reuse system and method, relating to the field of industrial waste recycling technology. The system includes a sedimentation tank for settling impurities in the lime slurry and controlling its calcium hardness; a sludge tank connected to the sedimentation tank for receiving the settled lime slurry; and a mixing tank connected to the sedimentation tank and the sludge tank for receiving lime slurry from both tanks and conveying it to a primary mixer for sintering mixing. By magnetically separating and settling the lime slurry used in the cast iron machine, iron impurities are removed, and the calcium hardness range of the lime slurry is controlled. The heated lime slurry is then conveyed to the primary mixer to replace part of the quicklime in the sintering mixing process, effectively treating solid waste, solving environmental problems, and further reducing the amount of quicklime required.
Owner:GUANGXI ZHONGJIN METAL TECH CO LTD +1

Adsorption tower for industrial waste gas treatment

The utility model discloses an adsorption tower for industrial waste gas treatment relates to waste gas treatment technical field, including: adsorption tower body, it is fixed from the top down outlet tube, adsorption cylinder and inlet tube and is composed, the even flow board is fixedly installed in the inner wall of inlet tube, and even flow board will the bottom of inlet tube is divided into the storage cavity for depositing waste gas treatment reagent, install the gas inlet pipe of extending out inlet tube on even flow board, and even flow board still installs agitating subassembly, adsorption seat, the inner wall fixed mounting of adsorption cylinder has two support rings, and adsorption seat is rotatably connected in the inner wall of support ring through sealing bearing. The utility model can complete "adsorption - regeneration - replacement " process of adsorbent without shutdown, improves the continuous operation ability of equipment, and carries out spiral pushing and crushing to the discharged adsorbent, ensures that the discharge is smooth, avoids the pipeline blockage.
Owner:MUMIAO (SHANGHAI) ENVIRONMENTAL PROTECTION TECH CO LTD

Biodegradable film using calcium carbonate extracted from oyster shell and method for preparing the same

PendingCN122138996AOyster shellsEnvironmental engineering
This invention relates to a method for preparing a biodegradable film using calcium carbonate extracted from oyster shells, and the biodegradable film prepared therefrom. According to this invention, by applying the biodegradable film in the preparation of packaging paper, bags, etc., which require biodegradability, the amount of plastic used can be significantly reduced, achieving eco-friendliness, while oyster shells, which are treated as industrial waste or discarded, can be utilized as a resource.
Owner:NEURAL PACKAGING LTD