2374 results about "Waste recycling" patented technology

The invention discloses an intelligent welding forming method and system for a green building steel heating radiator, and the method comprises the following steps: carrying out the surface defect recognition of a steel heating radiator base material based on an AI visual inspection system, recognizing a qualified base material, and automatically matching the type of a welding material from a material database according to the material and thickness parameters of the qualified base material. Welding parameters are intelligently matched through AI visual inspection and a neural network model, a laser and friction stir hybrid welding process is combined, traditional manual operation is replaced, the welding efficiency and precision are improved, and the problems of uneven welding seams and the like are solved; welding data are analyzed in real time through a multi-mode AI model, parameters are dynamically adjusted, intelligent defect recognition and repair welding are achieved in cooperation with 3D visual inspection, and the quality stability is improved through whole-process monitoring; smoke dust is treated through an environment-friendly process, acid pickling is replaced with mechanical rust removal, efficient recycling of materials is achieved through waste recycling, a green manufacturing system is constructed, and the sustainable development requirement of green buildings is met.

The present invention provides a device and method for the resource utilization of urban waste incineration slag, which relates to the technical field of slag waste recycling. The device for the resource utilization of urban waste incineration slag includes an equipment frame and a crusher installed on the equipment frame. It further includes a flow and precipitation component, a water addition component, and a resource recovery component installed on the equipment frame. The crusher transfers the crushed slag to the water addition component. The water addition component is used to add water to the ash slag and make it flow into the flow and precipitation component. After operation and precipitation, it is then discharged onto the resource recovery component. It also includes multiple groups of stirring components for stirring the slurry in the flow and precipitation component. The device and method for the resource utilization of urban waste incineration slag, by setting the flow and precipitation component, can obtain precipitation within the operation time compared with a fixed sedimentation tank, and can be flipped and dumped, and flushed with high-pressure water, making it easier to clean the internal slurry and preventing blockage.

The invention provides a composite solid waste-based cementing material and application thereof, the composite solid waste-based cementing material comprises 93-97 parts of industrial solid waste micro powder, 3-7 parts of an inorganic additive and 2-5 parts of an organic additive, and the invention further provides a preparation method of the composite solid waste-based cementing material. According to the solid waste-based cementing material provided by the invention, the hydration potential of all components in the solid waste-based cementing material is accelerated through the organic-inorganic composite admixture, the mechanical property and toughness of the solid waste-based cementing material are synergistically enhanced, the phenomena of falling off and falling off after molding are reduced, and the solid waste-based cementing material has important significance on the development of the solid waste recycling industry.

Waste collection and processing systems for use in low-gravity environments include a toilet having a bowl and a lid; a waste tank having an inlet and an outlet, with the bowl fluidly coupled to the inlet of the waste tank; a first valve arranged between the bowl and the waste tank and selectively operable to allow fluid connection between the bowl and the waste tank; a second valve arranged at a first outlet of the waste tank and selectively operable to allow for solid waste and liquid waste within the waste tank to be directed to a waste outlet; and a third valve arranged at a second outlet of the waste tank and selectively operable to allow for gases to be removed from the waste tank and directed to at least one of an occupied space, an external environment, or a waste reclamation system.

The invention relates to the technical field of mine solid waste treatment and carbon dioxide sealing and storage, and particularly discloses a system and a method for sealing and storing carbon dioxide by utilizing coal-based solid waste and mine water to prepare slurry. The system comprises a cement bin, a gangue bin, a coal ash bin, a gasified slag bin, a mine water storage tank, a stirring reaction kettle, a carbon dioxide storage tank, a slurry temporary storage tank, a vacuum pump and a slurry pump, and the stability and adsorption efficiency of carbon dioxide fixation are improved in the mode that coal-based solid waste, mine water and carbon dioxide are subjected to chemical reaction and physical adsorption; meanwhile, the prepared backfill slurry has high-strength anti-pressure ability, the stability of the backfilled underground goaf is better improved, further, coal-based solid waste and mine water are utilized for waste recycling, and the carbon dioxide storage cost is reduced.

The invention discloses waste reutilization equipment for silicone adhesive packaging film production, and relates to the technical field of plastic waste recovery treatment, the waste reutilization equipment comprises a melting tank and a heating module mounted on the melting tank, and further comprises a partition plate; the stirring mechanism comprises a main shaft and a plurality of material mixing assemblies, and each material mixing assembly comprises a plurality of stirring blades; the material control mechanism comprises a material guide plate mounted outside the plurality of stirring blades, a plurality of through grooves formed in the material guide plate, two scraping plates mounted in the through grooves, two cutting assemblies mounted in the through grooves and a linkage assembly used for driving the scraping plates to rotate; the scraping plate is driven to move towards the edge direction of the partition plate along with the material guide plate, packaging film waste materials with different melting degrees on the surfaces of the stirring blades are scraped away, and the packaging film waste materials which are not completely molten are easily attached to the outer portions of the stirring blades, so that the waste materials are easily carried to move towards the heating module; and the part of waste enters a high-temperature area close to the heating module, and melting of the part of waste is accelerated.

The invention relates to the technical field of rare earth waste recovery, in particular to a rare earth waste recovery process monitoring system and method based on industrial data processing, and the method comprises the steps: importing component composition data and magnetic characteristic data of rare earth waste in a rare earth waste magnetic separation process into a rare earth waste magnetic separation state analysis model; analyzing the magnetic separation state of the rare earth waste in the magnetic separation process of the rare earth waste; importing the equipment state data of the recovery equipment into the recovery equipment processing state analysis model, and analyzing the equipment processing state of the recovery equipment in the rare earth waste magnetic separation process; according to the rare earth waste magnetic separation state analysis result and the equipment treatment state analysis result of the recovery equipment in the rare earth waste magnetic separation process, the magnetic separation treatment benefit of the rare earth waste is evaluated; and according to the magnetic separation treatment benefit evaluation result of the rare earth waste, optimization early warning is conducted on the subsequent recovery process of the rare earth waste. And by analyzing the equipment state and sorting parameters, the rare earth treatment benefit is improved, and the equipment energy consumption cost is reduced.

The invention belongs to the technical field of comprehensive utilization of industrial solid wastes, and particularly relates to a sawing mud-graphite tailing road base material as well as a preparation method and application thereof. The road base material is prepared by mixing saw mud, graphite tailings, a red mud-based cementing material, a reinforcing agent and water. The sawn mud-graphite tailing road base material is applied to a heavy traffic load road base with the strength requirement of 4.0-6.0 MPa. According to the sawing mud-graphite tailing road base material, all aggregates in a traditional road base material are jointly replaced by sawing mud-graphite tailings, and the red mud-based cementing material is adopted for curing, so that the utilization efficiency of solid waste recycling is greatly improved; and the problems of shortage of sand and gravel resources and high material cost of construction engineering in the road engineering construction process are relieved.

The invention discloses an injection mold based on waste recovery, and relates to the technical field of injection molds for waste recovery, the injection mold based on waste recovery comprises a mold base and a mold extrusion disc, and a sliding groove is formed in the side wall of the mold base. According to the injection mold based on waste recovery, before injection molding, thrust is applied to the shoveling plate through the fixed mold disc, so that the thrust spring is compressed, the shoveling plate is pushed to reset through the elastic force of the thrust spring after the injection molding work is completed, leftover materials existing in a gap between the mold disc and the mold base are shoveled, and the injection molding efficiency is improved. The waste leftover materials can be conveniently collected, and the problems that the leftover materials remain in the gaps of the mold for a long time and are difficult to remove, and the mold cannot be closed easily after being accumulated for a long time are solved. The problem that leftover materials generated by matching gaps in the injection molding process of injection molding products are difficult to remove is solved.

The invention relates to the technical field of sintered ore production, in particular to a multi-process cooperative control method and system of a sintering process. The sintering production level is comprehensively improved. The control method comprises the following steps: uniformly-mixed material replacement control logic: establishing a feed-forward compensation model taking a material ferrous component and a burn-out rate as variables, and adjusting the ratio of fuel to a flux; solid waste circulation matching control logic: establishing an admission and substitution mechanism of gravitational dedusting ash and environmental dedusting ash; hydrothermal cooperative control logic: establishing a coupling regulation mechanism of temperature and moisture of the mixture; the ignition-sintering end point cooperative control logic is used for adjusting ignition parameters and the main fuel dosage in a linkage mode; according to return mine balance control logic, the sintering process is reversely diagnosed and adjusted through the physical state and flow feedback of return mines; and fuel and flux replacement control logic: executing accurate replacement calculation taking carbon balance or alkalinity conservation as a basic principle, and introducing a particle size or activity degree correction coefficient for optimization. The method is realized by a multi-process cooperative control system.

The automatic cutting machine comprises a rack, a plurality of clamping and rotating mechanisms are evenly distributed on the rack, and a chain plate conveying line used for feeding is arranged at the top of the rack; a servo grabbing mechanism used for carrying products is arranged between each clamping and rotating mechanism and the chain plate conveying line, and all the servo grabbing mechanisms are carried between the corresponding clamping and rotating mechanisms and the chain plate conveying line in a reciprocating mode through a carrying servo portal frame. According to the full-automatic injection molding machine, a full-automatic mode of a whole set of process flow from feeding to cutting to discharging of injection molding products is achieved, so that production and machining are more efficient and safer; modular design is adopted as a whole, and rapid replacement of tools and injection molding parts of different specifications is supported; the integrated waste recovery function is achieved, a dust blocking air cylinder is used for driving a baffle, waste scraps splashed during cutting are blocked, and then cutting waste recovery is achieved through negative pressure air suction.

The invention relates to the technical field of household garbage treatment, in particular to a rural household garbage classification and resourceful treatment circulation system, which comprises straw, harmful garbage, recyclable garbage, kitchen garbage, large household garbage and sludge; the rural household garbage treatment system comprises a household garbage classification system, a household garbage pyrolysis treatment system, a household garbage recycling treatment system, a harmful garbage recycling treatment system, a kitchen garbage recycling treatment system, a large household garbage classification recycling treatment system and a sludge recycling treatment system. By means of a centralized treatment mode of the rural domestic garbage, the problem that landfill of the rural domestic garbage is difficult is solved, corresponding economic value is brought to the rural area, the idea of waste utilization, circular economy, energy conservation and emission reduction is achieved, the rural environment is better, and the economic benefit of the rural area is improved. And a solid foundation is laid for creating a high-quality living environment in rural areas.

The invention discloses a secondary treatment process of cigarette butt recovery treatment waste, which comprises the following steps of: based on the characteristic that the quality of cigarette butts is increased due to dampness, carrying out coarse classification on the collected cigarette butts by utilizing a winnowing machine; installing a camera on the conveying device, connecting the camera with an image recognition system, and carrying out fine classification according to the characteristics of the cigarette butts; effective materials and chemical components of the cigarette butts are extracted by means of physical crushing and chemical extraction; compared with the prior art, the method has a relatively complete cigarette end pretreatment and harmful substance treatment process, an image analysis model is formulated and updated in time, accurate and effective data support is provided for cigarette end classification, a cigarette end classification mode and a key cigarette end locking target are optimized, the time cost of cigarette end classification is greatly reduced, and the cigarette end classification efficiency is improved. Corresponding equipment and effective component extraction materials are selected according to different types of cigarette butts, so that the utilization rate of the equipment and the materials can be increased.

The invention discloses a solid waste recycling forming machining die, and relates to the technical field of bicycle production waste reutilization, the solid waste recycling forming machining die comprises a lower die mechanism, an upper die mechanism is arranged on the lower die mechanism, a pressing mechanism is arranged on the upper die mechanism, and a male die set is arranged in the middle of the bottom wall of an upper die base; the material pressing mechanism comprises a first spring and a material pressing plate which are arranged on the upper die base, and further comprises an elastic ejector block set arranged on the material pressing plate and a guide hole site set formed in the material pressing plate in an up-down penetrating mode. The die has the advantages that the same die carries out stepped continuous punching operation, punching stress can be reduced, and the probability of deformation of the disc brake during punching is reduced; residual stress existing in the punched disc brake disc can be redistributed through attaching and pressure maintaining, and the situation that due to the fact that large holes and small holes in the disc brake disc are evenly and densely distributed in position, local deformation is generated is prevented; and the elastic ejector block group applies uniform elastic pressing force to the disc brake disc, so that the probability of deformation of the disc brake disc during rigid demolding is reduced.

The invention relates to the technical field of plastic waste recycling, in particular to a waste recycling device for plastic processing. Comprising a machining table, the top end of the machining table is provided with a feeding conveying belt used for conveying waste to be treated, the machining table is provided with a treatment bin, a feeding groove is formed in the side, close to the feeding conveying belt, of the treatment bin, and a circulating screening mechanism used for screening the crushed waste is arranged in the treatment bin; waste materials to be treated are fed into the feeding hopper through the feeding conveying belt via the feeding groove, the waste materials are crushed through the crushing mechanism, the crushed waste materials are screened through the circulating screening mechanism, the crushed waste materials are subjected to secondary crushing through the crushing mechanism, and therefore automatic circulating crushing of the waste materials is achieved; manual operation is not needed in the whole process, crushing, screening, secondary crushing and conveying are automatically conducted, the crushing quality is greatly improved, and meanwhile the workload of workers is relieved.

The invention provides a preparation method of a multi-source coal-based solid waste filling material, and belongs to the technical field of solid waste reutilization, and the preparation method comprises the following steps: uniformly mixing cement, fly ash, furnace bottom slag, desulfurized gypsum, coal gangue, gasified slag and a water reducing agent to obtain a mixed material; and adding fluorine-containing mine water into the mixed material, stirring and mixing to obtain the cemented multi-source coal-based solid waste filling material with predetermined fluidity and bleeding rate. The invention further provides application of the multi-source coal-based solid waste filling material. According to the preparation method and application of the multi-source coal-based solid waste filling material, the coal-based solid waste can be comprehensively recycled and is environmentally friendly, and the prepared multi-source coal-based solid waste filling material can effectively control and treat fluorine ions in mine water.

The invention relates to a mine solid waste-based composite saline-alkali soil modifier as well as a preparation method and application thereof, and belongs to the technical field of soil remediation and solid waste recycling. The modifier is prepared from volcanic rock solid waste, rice husk and mussel shell as raw materials through oxalic acid activation, microbial fermentation carbonization and humic acid chelation, and comprises 50-70 parts of activated stone powder-containing porous particles, 20-30 parts of rice husk-based charcoal, 10-20 parts of humic acid chelated magnesium-calcium powder and 3-5 parts of a composite binder. The preparation method comprises the following steps: ultrasonically activating the stone powder oxalic acid, and puffing and granulating with the binder; inoculating the rice hulls with salt-tolerant bacillus and actinomycetes for aerobic fermentation and carbonization; and the shell is activated by oxalic acid and then is loaded with a humic acid calcium magnesium compound. The modifier is applied according to 50-200kg / mu, so that the nutritional ingredients and the air permeability can be improved. According to the method, solid waste recycling, solid waste consumption and landfill cost and CO2 emission reduction are achieved, and the method is suitable for ecological restoration of the coastal saline-alkali soil and has both environmental protection and economic benefits.

The invention discloses a waste recovery vehicle dynamic scheduling system and method based on an AI algorithm, and belongs to the field of intelligent logistics. The system comprises a task analysis module, a vehicle state sensing module, an AI scheduling core module and the like. The task analysis module identifies waste categories through an attention mechanism U-Net algorithm, and generates a task parameter set containing priorities; the vehicle state sensing module outputs accurate vehicle data through a Kalman filtering algorithm; the AI scheduling core module takes the task completion rate, the energy consumption and the carbon emission reduction as targets, and outputs a scheduling instruction through a multi-target optimization model and an improved Dijkstra algorithm; the data feedback module calculates the carbon emission reduction according to the Sichuan local standard and updates the model; the problems of poor scene adaptation and high energy consumption in the prior art are solved, the task completion rate is increased by 25%, the empty driving rate is reduced by 18%, and technical support is provided for the dual-carbon target.

The embodiment of the invention discloses a fly ash coal oxygen-enriched melting intelligent control method based on multi-mode coupling prediction, and belongs to the technical field of solid waste recycling and intelligent control crossing. The method comprises the steps that S101, multi-source data collected by a sensor is obtained; step S102, obtaining control parameters through an intelligent control algorithm according to the multi-source data; s103, according to the control parameters, controlling an oxygen-enriched spray gun, a slurry outlet and a material ratio; wherein the step S102 comprises the sub-steps of performing decoupling prediction on the temperature T, the hearth negative pressure P, the flue gas oxygen concentration CO and the molten slurry yield Qp by adopting a multivariable decoupling prediction model; carrying out fuzzy control on the hearth negative pressure P by adopting a fuzzy self-adaptive PID (Proportion Integration Differentiation) controller; and a multi-objective optimization algorithm is adopted to calculate and obtain control parameters. The control method is small in melting temperature fluctuation, high in hearth negative pressure stability, high in quartz sand utilization rate, low in energy consumption per ton of molten slurry and high in heat preservation cotton qualification rate.

The invention belongs to the technical field of shoe sole waste recycling treatment, and discloses a shoe sole processing waste recycling device which comprises a crushing box, two groups of crushing rollers are rotatably arranged on the inner side of the crushing box, linkage pressure applying assemblies are arranged on the two sides of the crushing rollers, and each linkage pressure applying assembly comprises two groups of limiting guide columns. According to the crushing device, through cooperation of structures such as the linkage pressure applying assembly and the crushing rollers, power can be provided for the pressure applying device when the crushing rollers rotate, it is guaranteed that downward pressure is provided while the crushing rollers rotate, and the crushing efficiency is improved; and therefore, the problems that the normal crushing treatment is influenced due to accumulation or clamping stagnation caused by the fact that rubber cannot be quickly concentrated between the crushing rollers, and the working pressure of workers is greatly increased are effectively solved.

The invention provides equipment for extracting aluminum and calcium from solid waste and a method for recovering valuable components. The solid waste recovery device comprises a bottom plate, a pedestal, an extraction tank, a treatment tank and an extraction mechanism, the pedestal is installed on the upper surface of the bottom plate, the outer wall of the extraction tank is installed on the inner wall of the pedestal, a water tank is installed on the upper surface of the bottom plate and located on one side of the pedestal, and the treatment tank is fixedly arranged on the upper surface of the water tank; according to the scheme, through system integration of hydrothermal acid leaching, multi-stage solid-liquid separation and leachate refining technologies, deep extraction and efficient utilization of valuable elements such as fluorine, sodium and aluminum are achieved, the resource recovery rate is remarkably increased, the high-temperature energy consumption mode of traditional pyrogenic process treatment is broken through, the energy consumption is reduced, and the energy consumption is reduced. And the convex plate continuously rotates to control the guide wheel to enable the lifting rod to do reciprocating lifting motion in the extraction tank, so that the liquid level vortex phenomenon caused by traditional rotation can be eliminated, and the top liquid level of the extraction tank is more stable.

The invention belongs to the technical field of PVC film recycling, and discloses a PVC film waste recycling and reprocessing device which comprises a treatment bin and further comprises a crushing assembly arranged in the treatment bin and a waste recycling assembly arranged in the treatment bin. The conveying equipment is mounted at the bottom of the treatment bin; and the circulating assembly is mounted at the side part of the treatment bin. PVC film waste is injected into the treatment bin, a driving motor drives a rotating roller to rotate, a PVC film is crushed through crushing teeth, the PVC film is wound outside the rotating roller and the crushing teeth in the crushing process, and when the crushing teeth rotate to the lower end, a transmission rod is guided through a guide piece at the moment, so that a connecting piece and a cleaning piece move upwards along a transverse groove, and the PVC film is cleaned. And the cleaning piece is in contact with the side parts of the crushing teeth, so that the PVC thin film wound on the side parts of the crushing teeth is cut through the cleaning piece, the PVC thin film is prevented from being wound outside the rotating roller and the crushing teeth, and the crushing efficiency of the PVC thin film is improved.

The embodiment of the invention provides a building solid waste recycled aggregate production line control method and system, and relates to the technical field of building solid waste recycling, the method comprises the following steps: obtaining a first operation parameter of crushing equipment, and identifying a first characteristic of the crushing equipment influenced by a viscous material according to the first operation parameter; acquiring a second operation parameter of the screening equipment, and identifying a second feature of the screening equipment influenced by the viscous material according to the second operation parameter; acquiring a conveying state of the conveying equipment, and identifying a third feature of the conveying equipment influenced by the viscous material according to the conveying state; performing correlation analysis on the first feature, the second feature and the third feature to obtain a viscous state judgment result of the viscous material; generating a material viscosity index according to the viscosity state judgment result; and according to the material viscosity index, the operation parameters of the crushing equipment, the screening equipment and the conveying equipment are adjusted. The production efficiency and the product quality of the recycled aggregate can be improved, and equipment abrasion and energy consumption are reduced.

The invention relates to a digital intelligent regulation and control preparation method of a high-solid-waste low-carbon high-durability concrete connecting material, and solves the problems that an existing UHPC connecting material is difficult to balance high performance and low carbon, the solid waste resource utilization rate is low, a digital intelligent precise regulation and control means is lacked, and the cost is low. The method comprises the following steps: firstly, integrating data to construct a special database for the ultra-high performance concrete, establishing a raw material-process-performance mapping relation through multi-scale simulation, then optimizing target parameters through machine learning, preprocessing the raw materials, and finally obtaining the ultra-high performance concrete after the target parameters are optimized and the raw materials are preprocessed. And verifying the iterative model by using a high-throughput experiment, determining optimal process parameters, importing the optimal process parameters into a system, and executing stirring, forming and curing. The method has the following beneficial effects that high solid waste recycling and low-carbon emission reduction are achieved through digital intelligent regulation and control, high strength and high durability of materials are synchronously guaranteed, and the core application requirements of an assembly type structure are precisely met.

The invention discloses an all-solid-waste negative-carbon porous brick and a preparation method thereof, belongs to the technical field of green building materials for solid waste recycling and CO2 capture-storage-utilization, and particularly relates to a porous brick which takes red mud, steel slag and recycled aggregate as main raw materials, constructs a hierarchical pore structure through low-water-binder-ratio semi-dry pressing molding, and is prepared from the following raw materials in a solid-solid-waste negative-carbon porous brick. And directional carbonization curing is carried out by using cement kiln tail gas CO2 under the conditions of normal temperature and micro pressure, so that the national waste porous brick with negative carbon characteristic is prepared. According to the method, solid waste high doping, CO2 efficient solid storage and product performance synergistic improvement can be achieved.

The invention discloses a method for extracting lithium and sodium from overhaul slag through electrochemistry assistance, and belongs to the technical field of aluminum electrolysis lithium-containing solid waste cyclic economic utilization and environmental protection. A method for extracting lithium and sodium from overhaul slag through electrochemical assistance comprises the following steps that the overhaul slag and auxiliary materials are subjected to die-casting forming to prepare an electrode plate, and then lithium and sodium are extracted from the overhaul slag through an electrochemical method. According to the method, for the lithium-containing overhaul slag solid waste generated in the electrolytic aluminum industry, migration and dissolution of metal ions are enhanced through electrochemical assistance in a weak acid environment, so that comprehensive recycling of valuable elements of lithium and sodium is achieved, and meanwhile the recovery rate of lithium can be larger than 90%. In addition, the method can be carried out at low temperature, so that the energy consumption can be obviously reduced, and meanwhile, the equipment investment can be greatly reduced; meanwhile, solid waste resource utilization can be achieved, the risk of secondary pollution is reduced, and good economic and environmental benefits are achieved.

The invention provides waste recovery equipment for production of a wind power blade rear edge die assembly cushion block. The plastic processing waste recycling device comprises a processing frame, a bottom plate, a smashing mechanism and a pushing assembly. A waste receiving plate is mounted at the inner bottom of the machining frame, and a belt conveyor is mounted on the upper surface of the bottom plate and located below the waste receiving plate. The material pushing assembly is located in the waste material receiving plate and comprises a pushing plate and a lifting frame, the pushing plate is slidably connected to the inner wall of the waste material receiving plate, and the lifting frame is installed above the pushing plate. Therefore, the height range of the push plate can be prolonged by controlling the lifting frame to ascend through the guide wheels, accumulated plastic waste can be pushed, the waste is prevented from leaking and spilling from the top of the push plate, the accumulated waste can be treated, and meanwhile the requirement that the machining frame can machine more products at a time can be met.

The invention relates to the technical field of biomass waste reutilization and soil improvement, in particular to a biological polypeptide modified activated carbon soil conditioner and a preparation method thereof. The fertilizer comprises the following components in parts by weight: 5-7 parts of low-value animal waste protein, 5-7 parts of activated carbon, 6-8 parts of a landscaping substrate, 4-8 parts of vermiculite, 2-4 parts of a compound microbial agent and 4-8 parts of chitosan, low-value animal waste protein is prepared into functional polypeptide through a biotransformation technology, the functional polypeptide has the functions of adsorbing cations and chelating elements, then the functional polypeptide is used for modifying activated carbon, the functional polypeptide is organically mixed with other components according to a certain proportion to prepare the soil conditioner, and the functional polypeptide can be used as a fertilizer synergist in garden soil conservation and has a good application prospect. When the soil conditioner is used for treating the soil, nitrogen, phosphorus, potassium and trace elements in the soil can be enriched, the effectiveness of nutrient elements in the soil is improved, and the fixation of cadmium is reduced.

The invention provides a recovery device for building waste plastic building materials, and relates to the field of waste recovery devices.The recovery device comprises a feeding mechanism, a crushing mechanism, a separating mechanism and a melting granulation mechanism, and further comprises a crushing system and an electric control system; according to the crushing system, a primary crushing unit is driven by a first variable frequency motor; the secondary crushing unit is arranged at the discharging end of the primary crushing unit and is driven by a second variable frequency motor; the screening unit is arranged below the secondary crushing unit; wherein the electric control system is electrically connected with the first variable-frequency motor and the second variable-frequency motor and used for independently controlling the rotating speeds of the first variable-frequency motor and the second variable-frequency motor so as to drive the primary crushing unit and the secondary crushing unit to do differential relative motion, and the screening unit is used for returning substandard materials to the primary crushing unit to be crushed again. Multi-stage differential crushing and intelligent closed-loop control are adopted, airflow separation and magnetic separation impurity removal are combined, efficient and energy-saving production is achieved through segmented melting and plasticizing, and the treatment efficiency and the purity of a finished product are improved through an automatic system.

The invention discloses an underground mine goaf filling body strengthening and subsequent mining joining method, and relates to the technical field of mine mining. Comprising the following steps of intelligent filling body construction and reinforcement, multi-source fusion intelligent monitoring and digital twinning construction, data-driven subsequent mining dynamic intelligent decision making and energy regulation and control, targeted restoration and collaborative ecological reconstruction. The intelligent filling body is made of the shape memory polymer fibers and the nanometer piezoelectric ceramic particles, the layering process is combined to improve the strength and real-time state feedback, the safety and durability of the filling body are remarkably improved, the high-fidelity digital twinborn model is constructed in a fused mode, intelligent decision making and active wave absorbing regulation are linked, and the stability of the filling body is improved. The subsequent mining efficiency can be effectively improved, the damage risk of the filling body can be effectively reduced, in addition, the damage area is accurately positioned through the unmanned aerial vehicle, directional grouting repair is conducted, heavy metal is solidified through microorganisms, solid waste is recycled, the resource utilization rate in the mining process is increased, and the environmental burden is reduced.