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57 results about "Waste production" patented technology

Waste production implies the use of material and energy and the depletion of the Earth's renewable and non-renewable resources (see Chapter 13). Waste issues and their solutions are inevitably linked to production and consumption throughout all stages of the life-cycle of materials and the use of energy (see Chapter 12).

A clamp for intermediate shaft and two-axis milling key

The utility model relates to a fixture, in particular to a fixture for intermediate shafts and two-axis milling keys, which solves the problem that when performing intermediate shaft and two-axis processing conversion, the corresponding fixture needs to be replaced as a whole, which wastes production time and makes the processing efficiency relatively low. The utility model comprises a base plate and a fixed center and a movable center which are relatively arranged on the base plate and are used to cooperate with the center holes at both ends of the intermediate shaft or the two shafts to achieve axial positioning. An intermediate shaft angular positioning piece is arranged on the base plate, and the intermediate shaft angular positioning piece cooperates with the gear tooth groove on the intermediate shaft through the intermediate shaft tooth piece in its first guide hole to complete the rotation limit of the intermediate shaft; a two-axis angular positioning piece is also arranged on the base plate, and the two-axis angular positioning piece cooperates with the spline groove on the two shafts through the two-axis tooth piece in its second guide hole to complete the rotation limit of the two shafts.
Owner:SHAANXI FAST GEAR CO LTD

Unequal-thickness and unequal-strength part machining method and part machining equipment

The invention discloses an unequal-thickness unequal-strength metal part machining method and part machining equipment, and belongs to the technical field of part machining. The machining procedures can be simplified, the production efficiency is improved, waste is reduced, the production cost is reduced, all the machining procedures are collaboratively optimized, and the part machining quality stability is improved. The method comprises the steps that thickness distribution and strength distribution of a target metal part are determined according to the application state of the target metal part, and the target metal part is divided into at least two area components. And then determining the required metal coiled material corresponding to the region component. And based on the tailor-welding parameters, the tailor-welded coiled material is formed by the multiple metal coiled materials through the tailor-welded laser technology. And finally, the tailor-welded coiled material forms a target metal part through a rolling process based on the rolling parameters.
Owner:武汉钢铁有限公司

Multi-source data fusion-based hazardous waste disposal facility matching and early warning system and method

The invention discloses a hazardous waste disposal facility matching and early warning system and method based on multi-source data fusion in the technical field of hazardous waste disposal, and the system comprises a data collection module which is used for obtaining multi-source heterogeneous data; the data preprocessing module is used for analyzing, cleaning and standardizing the multi-source heterogeneous data to obtain standardized data; the intelligent analysis module is used for analyzing the standardized data to obtain a matching result or an early warning result; the intelligent analysis module comprises an intelligent matching sub-module which is used for calculating a comprehensive score of the hazardous waste disposal unit according to a multi-factor weighting algorithm and generating a matching result according to the comprehensive score. According to the system, data of multiple data sources are integrated through the data acquisition module, standardized data are obtained through the data preprocessing module, and the intelligent analysis module recommends disposal units for waste production enterprises based on a multi-factor weighting algorithm and the standardized data, gives out multi-level early warning and reasonably configures hazardous waste disposal resources.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA

A recycling system for continuous fiber reinforced thermoplastic composites

The application discloses a continuous fiber reinforced thermoplastic composite material recycling system which can effectively reduce energy consumption, reduce recycling cost and avoid secondary waste production. The continuous fiber reinforced thermoplastic composite material recycling system comprises a waste recycling device, a conveying device, a double-screw extruder, a discharging heat preservation cabin and a mold pressing forming device; the material extrusion outlet at one end of the double-screw extruder is communicated with the discharging heat preservation cabin; the conveying barrel of the extruder is provided with a fat matrix feeding port and a waste inlet above one end; the conveying device is arranged between the waste recycling device and the waste inlet; the discharging heat preservation cabin is provided with a discharging port; the discharging port of the discharging heat preservation cabin is provided with a material adjusting device; and the mold pressing forming device provides mold pressing forming raw materials through the material adjusting device. The continuous fiber reinforced thermoplastic composite material recycling system can improve recycling efficiency, reduce recycling cost and avoid secondary pollution.
Owner:NANJING SPECIAL PLASTIC COMPOSITE MATERIALS CO LTD

Autoclaved concrete block mold assembly and use method

The present invention discloses an autoclaved concrete block mold assembly and a method for using the same. The mold assembly includes a base plate and an outer wall. An inner wall is detachably provided inside the outer wall. A certain distance is left between the inner wall and the outer wall so as to clamp and form an annular area. A ventilation heating pipe ring is also provided inside the annular area. An annular rectangular central wall is provided inside the inner wall. An annular casting area is formed by clamping between the inner wall and the central wall. The length and width of the central wall are changeable. The four outer wall surfaces are always smooth surfaces before and after the size changes. The bottom of the central wall is detachably fixedly connected to the upper end surface of the base plate. The bottom of the central wall is sealed and fitted with the upper end surface of the base plate. The mold assembly according to the method of use can realize the production of hollow concrete blocks of different specifications on a basic mold, thereby reducing the cost of the mold, avoiding the derivative problem of too many molds, helping enterprises to improve their competitiveness, and at the same time providing a more efficient maintenance method during static maintenance to avoid wasting production resources.
Owner:KANGZHUANGZHUGONG TECHNOLOGY (HAINAN) CO LTD

Garbage production capacity prediction method and device, storage medium and program product

The invention relates to the technical field of artificial intelligence, and particularly provides a garbage production capacity prediction method and device, a storage medium and a program product. According to the method, by constructing a road network Voronoi diagram of a garbage collection point, the total length of roads in the strength range of the garbage collection point can be calculated, and then the average garbage intensity coefficient is calculated by combining the total length, single-day garbage total amount data, single-day people flow total amount and per capita browsing time of a to-be-predicted area; and finally, based on the average garbage intensity coefficient, the tourist visiting speed, the number of tourists entering the to-be-predicted area at the prediction moment, the total length and the shortest distance between the garbage collection point and the entrance of the to-be-predicted area, the garbage production amount of the garbage collection point at the prediction moment is predicted. By adopting the scheme of the embodiment, the garbage production capacity of the garbage collection point of the to-be-predicted region at the prediction moment is predicted.
Owner:CHINA MOBILE M2M +1

Biomass solid waste blending combustion optimization method based on dynamic regionalization calculation and multi-dimensional evaluation

The invention relates to a biomass solid waste blending combustion optimization method based on dynamic regionalization calculation and multi-dimensional evaluation. The biomass solid waste blending combustion optimization method comprises the following steps: constructing a biomass solid waste classification system; establishing a dynamic calculation model; the method comprises the following steps: acquiring agriculture and forestry production data in a region in real time on the basis of a dynamic calculation model, adjusting dynamic parameters in the dynamic calculation model, outputting a yield calculation result of regional biomass solid waste through the dynamic calculation model, and constructing a multi-dimensional combustion characteristic evaluation index database on the basis of calculation result data; determining a weight coefficient of each combustion characteristic index through an analytic hierarchy process, and constructing a fuel suitability evaluation model; and calculating a fuel suitability comprehensive index, and generating a blending combustion proportion recommendation value so as to obtain a blending combustion optimization scheme. Compared with the prior art, the method has the advantages that the dynamic calculation model and the multi-dimensional combustion characteristic database are constructed, so that the problem of lack of systematic planning and basic data support for resource utilization in biomass blending combustion in the prior art is effectively solved.
Owner:SOUTHEAST UNIV

Wire coil diameter adjusting device and method of silking machine

The invention discloses a wire coil diameter adjusting device and method for a silking machine, the wire coil diameter adjusting device comprises a conveying roller way and two limiting units, the conveying roller way is used for bearing and driving a coil discharged by the silking machine to move, and the two limiting units are used for limiting the motion trails of the coil on the conveying roller way along the two sides of the width direction of the conveying roller way respectively; the limiting units are used for limiting the size of a coil on the conveying roller way in the width direction of the conveying roller way, and the position of each limiting unit in the width direction of the conveying roller way can be adjusted. By arranging the limiting unit, the position of the limiting unit can be adjusted in the width direction, the coil diameter requirements of wire rods of different specifications can be rapidly met, and downstream customers do not need to adjust coils. While the cost is reduced, the requirements of downstream customers for high-efficiency, low-cost and low-waste production and customization are met, the resource utilization rate is increased, and the carbon emission is reduced.
Owner:JIANGSU SHAGANG STEEL CO LTD +2

Solid waste space-time positioning and attribute association method based on voxel knowledge unit

The invention discloses a solid waste space-time positioning and attribute association method based on a voxel knowledge unit, and relates to the technical field of environment monitoring and pollution tracing. The method comprises the following steps: identifying a three-dimensional abnormal voxel with a space-time range by acquiring multi-modal environment data such as an Internet of Things sensor and unmanned aerial vehicle remote sensing; constructing a voxel knowledge unit library integrating space-time tags, waste attribute tags, environment attribute tags and source tags; associating the abnormal voxels with the VKU through space-time matching and causal association between waste attributes and environment abnormal indexes; based on the principle of consistency of three conditions of time, space and attribute, the VKU is matched with enterprise waste production / dumping records; and finally, through multi-source cross verification such as laboratory detection, track verification and witness inquiry, the traceability result is ensured to be accurate. The space-time precision of pollution traceability and the causal association reliability are improved, a scientific basis is provided for pollution responsibility determination, and the problems that an existing method is low in space-time precision, poor in multi-source data integration, insufficient in result credibility and the like are solved.
Owner:GANSU ECO-ENVIRONMENTAL SCI & DESIGN INST (GANSU ECO-ENVIRONMENTAL PLANNING INST)

New construction waste industrial park site selection method based on grid analysis

The invention relates to the technical field of site selection of recycling facilities, in particular to a new construction waste industrial park site selection method based on grid analysis. Comprising the following steps: determining a site selection evaluation area, an industrial park processing scale and grid unit parameters; converting the rigidity and flexibility evaluation indexes into a rasterized thematic map layer; building waste generation amount estimation, space distribution and building waste generation distribution map layer generation; performing Boolean overlay analysis on the hard indexes to obtain a primary selection range; the weight of the flexible index is determined by adopting a CRITIC method, and an alternative site selection scheme is obtained after weighted superposition analysis; and constructing a multi-objective optimization model of the newly-built construction waste industrial park, and obtaining a Pareto optimal solution set through an NSGA-II algorithm. According to the method, the generation space distribution of the construction waste and the objectivity of the index weight are comprehensively considered, the scientificity and systematicness of site selection of the construction waste industrial park are improved, and the method has good universality and popularization value.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST (GRP) CO LTD +1

A lithium battery pack housing installation device

The utility model discloses a device for installing a lithium battery pack shell, comprising a body and a pressing plate slidably connected to the body, an assembly cavity is formed between the bottom surface of the body and the pressing plate, when an upper cover and a lower cover are located in the assembly cavity, the pressing plate presses the upper cover onto the lower cover to complete the assembly, sliding rods are fixedly connected to both side walls of the assembly cavity, a limiting plate is slidably connected between the two sliding rods and located below the pressing plate, so when the upper cover and the lower cover are assembled, as the pressing plate moves downward, the pressing plate and the limiting plate form an abutment, at which time the limiting plate contacts the upper cover under the push of the pressing plate and presses the upper cover onto the lower cover until the limiting plate and the clamping block form an abutment, at which time the clamping block can effectively prevent the pressing plate and the limiting plate from continuing to press downward, thereby playing a role in protecting the assembled shell, reducing the possibility of waste generation, and further reducing the waste rate.
Owner:ZHEJIANG YUZE NEW ENERGY TECH CO LTD

Biomass straw particle forming and cooling device

The utility model discloses a biomass straw particle forming and cooling device which comprises a cooling box, the upper end of the cooling box is communicated with a feeding hopper, a discharging speed adjusting assembly is arranged at an outlet in the bottom of the feeding hopper, and the bottom of the side face of the cooling box is connected with a cold air conveying pipeline. A plurality of vertically arranged material slow-descending funnels are fixedly arranged in the cooling box, a plurality of uniformly distributed air holes are formed in the material slow-descending funnels, conical slow-descending hoppers are fixedly arranged on the inner wall of the cooling box and located above the material slow-descending funnels, and channels for materials to fall down are formed between the peripheries of the bottom edges of the conical slow-descending hoppers and the inner wall of the cooling box; according to the utility model, the traditional stirring mode is abandoned, and the design of combining the conical slow hopper and the material slow descending hopper is utilized, so that biomass particles slowly slide down in the cooling box and are reversely cooled by cold air, the crushing of particles which are not completely formed due to stirring is avoided, and the generation of waste products is effectively reduced.
Owner:YONGCHANG COUNTY FENGTIAN AGRICULTURAL TECHNOLOGY CO LTD

Folding oca processing waste production apparatus

The utility model discloses a kind of folding OCA processing waste production equipment, including rack, pre-pressing device, first die cutting device, second die cutting device, third die cutting device, pressure device, OCA original film unwinding device, single layer silica gel film unwinding device, silica gel protective film finished product winding device, OCA release film winding device, waste PET film winding device, high-viscosity original film unwinding device, waste winding device, release film unwinding device and edge material unwinding device;The pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device are sequentially horizontally and side by side spaced apart on the rack;By cooperating and setting pre-pressing device, first die cutting device, second die cutting device, third die cutting device and pressure device, so that silica gel protective film is cut in multiple times in the process of production, so that processing is smooth, effectively pulls OCA waste, improves processing efficiency, improves product edge bubble, glue and other quality bad, bring convenience for production operation.
Owner:DONGGUAN TECO OPTICAL MATERIAL TECH CO LTD

Equipment for producing cement from industrial solid waste

The utility model relates to the technical field of industrial solid waste residue treatment in cement production, in particular to equipment for producing cement from industrial solid waste, which comprises a crushing box and an auger conveyor body mounted below the crushing box. Two servo motors and two water pumps are fixedly connected to the crushing box, and two guide plates arranged in an inverted splayed shape are fixedly connected to the interior of the crushing box; two sliding assemblies are arranged on the smashing box, each sliding assembly comprises an installation block installed on the smashing box through a first spring, and a brush is fixedly arranged on one side of each installation block. According to the marble leftover material crushing device, clean water is sprayed to the surfaces of the crushing rollers to wash the crushing rollers, so that the crushing rollers can be cleaned more thoroughly, the crushing effect of marble leftover materials can be effectively prevented from becoming poor, and the use of equipment is facilitated.
Owner:PINGDINGSHAN TIANRUI YAO ELECTRIC CEMENT CO LTD

Efficient cooling device for silicone rubber production based on waste reutilization

The invention relates to the technical field of waste production and utilization, and discloses an efficient cooling device for silicone rubber production based on waste reutilization, the efficient cooling device comprises a shell and cooling assemblies arranged on the two sides and the top of the shell, and at least three groups of conveying belts are uniformly arranged in the shell in the vertical direction; a transition mechanism is arranged between the output end of the upper conveying belt and the input end of the lower conveying belt adjacent to the upper conveying belt, the conveying belts and the transition mechanism are arranged in an S shape, the transition mechanism comprises two sets of symmetrically-arranged side plates, and the two ends of each side plate are connected with the upper conveying belt and the lower conveying belt adjacent to the upper conveying belt respectively. And a cambered surface guide cavity through which the silicon rubber sheet can pass is formed between the two groups of side plates through the arranged guide parts. The problem that the head ends of the sheets are prone to being stacked due to the fact that the head ends of the sheets rapidly fall off and suddenly change in direction at a traditional vertical connection angle is solved, the temperatures of all parts of the sheets tend to be consistent, and the quality of products produced by recycling and reusing silicone rubber waste is improved.
Owner:SUZHOU GESHIFU NEW MATERIAL CO LTD

Aluminum alloy die-casting equipment with temperature compensation function

The utility model relates to the field of metal processing and manufacturing, in particular to aluminum alloy die-casting equipment with a temperature compensation function. The aluminum alloy die-casting equipment with the temperature compensation function comprises a supporting frame, a stamping assembly, guide rods, a sliding plate and the like, the stamping assembly is arranged on the right side of the supporting frame, the four guide rods are connected to an installation plate of the stamping assembly, and the sliding plate is connected among the four guide rods in a sliding mode. Through the arrangement of the heating refrigerator, the temperature sensor and the controller, the temperature sensor monitors the temperature change in the first mold cavity and the second mold cavity in real time and feeds data back to the controller, and the controller automatically adjusts the working state of the heating refrigerator according to a set value; the temperature in the first mold cavity and the temperature in the second mold cavity are always kept within the ideal pouring range, the precise temperature control system effectively avoids production interruption or waste products caused by temperature abnormity, and the quality and consistency of aluminum alloy workpieces are improved.
Owner:AIKODI (SHENZHEN) PRECISION PARTS CO LTD

Method for preparing compound ii

Provided is a method for preparing Compound II, wherein the method includes the following steps: using Compound I as a raw material, performing a reaction under the action of an organometallic catalyst and a phase transfer catalyst, and oxidizing with hydrogen peroxide to obtain Compound II. The catalyst utilized in the present application exhibits remarkably high activity for the oxidation of sulfur ether compounds, leading to the preparation of sulfone compounds. The method for preparing Compound II significantly reduces the amount of catalyst required, effectively diminishing the consumption of non-renewable scarce strategic resources, while concurrently reducing the potential hazards to the natural environment. The novel method exhibits a substantial reduction in the amount of catalyst required, leading to a concurrent decrease in the consumption of non-renewable resources. Concurrently, it significantly mitigates potential harm to the natural environment and human health. The solvent utilized in this method is easy to be recycled and reused, and enhances overall process efficiency by reducing resource consumption, waste generation, and treatment costs, thereby rendering it more suitable for industrial production.
Owner:JIANGXI TIANYU CHEM CO LTD

Equipment for producing soil conditioner by utilizing industrial solid waste

The utility model relates to the technical field of production of soil amendment from solid waste, and particularly discloses a device for producing soil amendment from industrial solid waste, which comprises an upper tank body and a lower tank body, an activation mechanism is arranged in the upper tank body, the activation mechanism comprises two symmetrically distributed rotating shafts which penetrate through and are rotatably connected to the upper end of the upper tank body, spiral blades with sawteeth are fixedly connected to the outer walls of the two rotating shafts, gears are fixedly connected to the outer walls of the two rotating shafts, the two gears are meshed with each other, and supporting rings are fixedly connected to the interiors of the upper tank body and the lower tank body; a strong shearing force field is formed through meshing transmission of two reversely-rotating sawtooth spiral blades and a gear, the cavitation effect of an ultrasonic generator is matched, the silicate crystal depolymerization time is shortened, heavy metal is stabilized and strengthened, an annular drainage pipe and a flow guide pipe form double-layer atomization covering, and the heavy metal is converted into stable sulfide; and the risk of heavy metal migration is fundamentally blocked.
Owner:NANYANG TAIHAO ENVIRONMENTAL PROTECTION TECH CO LTD

A process for preparing rock wool by high-temperature melting of fly ash without water washing

The present invention relates to the technical field of fly ash treatment, and discloses a process for preparing rock wool by high-temperature melting of fly ash without water washing, which comprises the following steps: fly ash unloading: the fly ash after entering the site is stored in a raw material silo (vertical), and the fly ash is directly transported from the waste-producing unit to the project site by a special closed tank truck. In the process for preparing rock wool by high-temperature melting of fly ash without water washing, fly ash, quartz stone and alumina are mixed and put into a high-temperature melting furnace for heating, and the melt is cooled and drawn into fibers under the combined action of the centrifugal force of the centrifuge and the high-speed airflow ejected by the wind ring, and the fibers fed into the fiber forming system are collected, and then the fibers are formed into rock wool through subsequent processing. While making rock wool, the fly ash is subjected to high-temperature heat treatment, which can make full use of the high chlorine and heavy metal content of the fly ash, and the heavy metals and chlorine are synergistically volatilized into the flue gas, and finally captured in the concentrated ash, so as to achieve the purpose of dechlorination and heavy metal removal of the fly ash.
Owner:JIANGSU TIANBAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Fly ash and waste acid synergetic neutralization treatment system

The utility model discloses a fly ash synergetic waste acid neutralization treatment system, which is used on a waste acid neutralization treatment operation line and comprises a material storage unit, a waste acid conveying unit, a fly ash conveying unit, a synergetic treatment unit and a finished product temporary storage unit which are sequentially arranged, the co-processing unit is used for receiving physico-chemical heteroacid and fly ash and executing a fly ash co-waste acid neutralization treatment process, the co-processing unit comprises a reaction chamber provided with a stirring device, a discharging hopper is arranged at the feeding end of the stirring device, and an adjustable gate valve is further arranged between the discharging hopper and the feeding end of the stirring device; and the finished product temporary storage unit is used for storing the finished product storage device from the cooperative processing station. According to the utility model, the gas treatment device and the corrosion-resistant plate are introduced, and the gate valve is linked with the hydraulic transmission device, so that the influence of waste acid on equipment corrosion is remarkably reduced, excessive addition of auxiliary materials and increase of secondary waste production are avoided, waste is treated by waste, and the treatment cost is remarkably reduced.
Owner:DONGGUAN XINDONGXIN ENVIRONMENTAL PROTECTION INVESTMENT CO LTD +1

Microporous net flattening and cutting device

The utility model discloses a microporous net flattening and cutting device, which relates to the technical field of microporous net processing and comprises a pressure flattening device, fixed connecting plates are arranged behind the left side and the right side of the pressure flattening device, and the top ends of the two fixed connecting plates are fixedly connected with a laser cutting device together. The laser cutting device is located above the top end of the rear side of the pressure leveling device. The two pressure rollers which are parallel up and down in the pressure leveling device are used for leveling the microporous net, and the distance between the upper pressure roller and the lower pressure roller can be adjusted through the distance adjusting assembly so as to adapt to microporous nets with different thicknesses, so that the microporous net is kept in a flat state when entering a cutting area; the laser cutting device is simple in structure and convenient to operate, waste products caused by uneven materials are avoided, the qualified rate of products is increased, the production cost is reduced, the positions of the connecting moving block and the laser cutting head can be independently and finely adjusted through the vertical fine adjustment threaded column and the transverse fine adjustment threaded column, and the accuracy of the cutting size and the quality and applicability of the products are improved.
Owner:LIAOCHENG TIANSHENG MASCH EQUIP CO LTD

High-performance resource utilization method of photovoltaic waste

The invention discloses a high-performance resource utilization method of photovoltaic waste, and the method comprises the steps of silicon raw material treatment, silicon block crushing and impurity removal, battery graphite treatment, silicon ink compounding, battery production from waste and performance detection. The low-cost and high-performance negative electrode material is realized by utilizing the high energy density of silicon and the excellent conductivity of graphite, and the photovoltaic waste is recycled to prepare the silicon negative electrode, so that the problem of treatment of the photovoltaic waste is solved, high-value utilization of the waste is also realized, the problem of treatment of waste silicon powder in the photovoltaic industry is effectively solved, and the production cost is reduced. And the binding force between the silicon nano-particles and the carbon layer is enhanced, the volume expansion of silicon is inhibited, electron transfer is promoted, uniform mixing of silicon and graphite is promoted, the conductivity is enhanced, and the electrochemical stability of the silicon nano-particles serving as the negative electrode of the lithium battery is improved.
Owner:SHANGHAI SECOND POLYTECHNIC UNIVERSITY

A method for recovering building ceramic raw materials from lepidolite beneficiation tailings

The present invention provides a method for recovering building ceramic raw materials from lepidolite beneficiation tailings. The method comprises: preparing a prefabricated slurry; stirring the prefabricated slurry and then settling and desludging the prefabricated slurry to obtain ecological ceramic raw materials and pre-selected slurry; placing the pre-selected slurry, sodium hydroxide, water glass, and sodium hexametaphosphate into a roughing flotation cell, and adding a collector and a frother for roughing to obtain roughing tailings; adding a collector for a first cleaning to obtain a first cleaned tailing; adding a collector for a second cleaning to obtain a second cleaned tailing and building ceramic raw materials; placing the roughing tailings, the first cleaned tailings, and the second cleaned tailings into a scavenging flotation cell, and then adding water glass and sodium hexametaphosphate for scavenging to obtain lepidolite concentrate and scavenged tailings; and returning the scavenged tailings to the roughing flotation cell for a cyclic flotation operation. The present invention employs a "one roughing, two cleaning, one scavenging" flotation process, which is simple, generates no waste, and has excellent environmental value.
Owner:BEIJING UNIV OF TECH +1

Fluorine-containing silicon slag resource utilization method

The invention discloses a fluorine-containing silicon slag resource utilization method, and relates to the field of fluorine-containing silicon slag resource utilization. The method comprises the following steps: washing fluorine-containing silicon slag, and filtering to obtain crude silicon dioxide; adding excessive crude silicon dioxide into the ammonium bifluoride solution, stirring and dissolving, and filtering after reaction to obtain first filtrate; mixing and stirring part of the first filtrate with first ammonia water, and aging to obtain silicon dioxide gel seed crystals; mixing and stirring the silicon dioxide gel seed crystal and the remaining first filtrate, adding second ammonia water under the stirring condition, continuously stirring for ammonolysis reaction until crystallization is completed, and filtering to obtain a silicon dioxide filter cake and second filtrate; the fluorine-containing silicon slag is used as a raw material in the whole process route, and the raw material source is wide; the white carbon black product is synthesized by preparing the seed crystal, so that the product quality is high; the reaction conditions are mild, the raw materials are recycled, the comprehensive utilization degree is high, and no secondary waste is generated.
Owner:HUBEI JIUNING NEW MATERIALS CO LTD

Unmanned production line and method for waste recycling production

The invention provides an unmanned production line and method for waste recycling production, and the unmanned production line comprises a waste paper packaging production line for recycling different types of waste paper, and the waste paper packaging production line is connected with a waste fabric recycling and packaging production line through a first communication conveying line and a second communication conveying line; the waste fabric recycling and packaging production line is used for recycling different types of waste fabrics; the production line further comprises a PET breaking production line used for recycling PET bottles, the PET breaking production line comprises a PET bottle sorting production line used for sorting the PET bottles, and the PET bottle sorting production line is connected with the PET bottle breaking and packaging production line. The AGV trolley is used for automatically transporting materials among different production lines, and the AGV trolley is in communication connection with the central control system and dispatches and monitors the AGV trolley. According to the production line, intelligent waste production work is completed by means of the AGV intelligent carrying robot.
Owner:CHINA THREE GORGES UNIV

Municipal solid waste yield day-by-day prediction method fusing communication big data

The invention discloses a city household garbage yield day-by-day prediction method fusing communication big data, and belongs to the technical field of environmental engineering. According to the method, the problems that the existing municipal solid waste yield cannot be predicted day by day and the prediction accuracy is poor are solved. The method comprises the following steps: firstly, collecting historical monthly household garbage clearance total amount data and corresponding daily scale communication data of a city to be predicted; constructing a population weight decomposition model, and mapping the monthly scale garbage quantity to the daily scale by using the decomposition model; obtaining a corresponding garbage quantity sequence; based on the anonymous communication data of the to-be-predicted city operator, constructing a daily-scale multi-dimensional population feature vector of the to-be-predicted city; constructing a sample set by using the multi-dimensional population feature vector and the daily scale garbage yield sequence; based on an integrated learning framework of gradient lifting, establishing a machine learning regression model of a symmetric tree structure, and training the machine learning regression model; obtaining a prediction model; and predicting the daily garbage yield by using the prediction model. The method is used for regional garbage yield prediction.
Owner:HARBIN INST OF TECH

Organic bioreagent, production method, use of the bioreagent, and leaching process to recover metals

The present invention discloses an organic "BioReagent" or leaching solution, a process for producing said BioReagent, and the use of the organic BioReagent in leaching processes to recover precious metals and copper from waste from electrical and electronic equipment (WEEE). The organic BioReagent of the present invention is produced from waste from the wine and / or agroforestry industries. The BioReagent can also contain microorganisms which assist the oxidation of oxidising agents such as iron, thereby improving the dissolution of certain metal elements to be recovered. The organic BioReagent of the present invention allows the selective dissolution of metal elements present in solid materials that are small in size such as WEEEs, leaving other more noble metals in their solid and released form.
Owner:SPA RES & INNOVATION ENG CENT

An intelligent assessment method for the risk of concealing or underreporting hazardous waste in enterprises

The present invention provides an intelligent assessment method for the risk of underreporting and missing reporting of enterprise hazardous waste. It obtains relevant data tables of the enterprise, completes the exact matching between the data tables, and constructs a multi-dimensional waste production database for different industries; eliminates the dirty data in the multi-dimensional database, determines the time resolution for merging, and obtains an initial sample data set; uses an unsupervised anomaly detection integration framework to identify and eliminate abnormal data in the initial sample data set, and obtains a prediction data set; uses the prediction data set to train and verify a random forest model, predicts the theoretical waste production volume and the theoretical waste production range of the enterprise during the supervision period, and calculates the probability and quantity of underreporting and missing reporting of the enterprise's hazardous waste production. Based on the basic information of the enterprise and the online monitoring data, and combining unsupervised anomaly detection and supervised machine learning methods, the present invention accurately predicts the theoretical hazardous waste production volume and the risk of underreporting and missing reporting of the enterprise, so as to realize the intelligent supervision of the source of hazardous waste.
Owner:NANJING UNIV

Application of converting red mud and slag into planting soil based on fulvic acid as conditioner

The invention discloses application of converting red mud and slag into planting soil based on fulvic acid as a conditioner, and mainly relates to the technical field of soil conditioning materials. Compared with the prior art, the conditioner has the advantages that the improvement technology of the conditioner on the red mud solid waste is simple, the operability is high, the technology is stable, special products do not need to be additionally developed, the application range is wide, and the conditioner can meet the red mud treatment requirements of different scenes. According to the invention, the conditioning effect is realized with a low addition amount of 2-10%, the material consumption is greatly reduced, the red mud treatment cost is reduced, the enterprise operation cost is doubly compressed, and the cost performance of investment is improved, the improved red mud can reach the Grade 6 standard in the cultivated land quality grade (GB / T33469-2016), the resource utilization is realized, and the red mud solid waste has new economic value.
Owner:GUANGXI HONGSHENGYUAN ENVIRONMENTAL PROTECTION CO LTD +1