28 results about "Municipal solid waste" patented technology

This invention discloses a fully automated centralized municipal solid waste treatment equipment and method, relating to the technical field of waste treatment equipment. It includes a feeding component, a crushing component, a conveying component, a drying component, an incineration mechanism, and a recycling mechanism. The crushing component comprises a first crushing mechanism and a second crushing mechanism. A feeding component is located on one side of the first crushing mechanism. Several sets of conveying components are provided, with one set installed on one side of the bottom surface of the first crushing mechanism. This device automatically processes waste materials by feeding them into the crushing components, followed by crushing, ultimately transforming the waste materials into usable products. The equipment employs a fully automated control system, enabling automatic collection, crushing, and incineration of waste, improving the efficiency and quality of waste treatment, achieving harmless and resource-based utilization of waste, reducing environmental pollution, and enabling resource utilization of waste.

This utility model discloses a homogenization device for medical waste fly ash and municipal solid waste fly ash, comprising a medical fly ash silo, a municipal solid waste fly ash silo, and a homogenization chamber. The medical fly ash silo and the municipal solid waste fly ash silo are respectively equipped with a first and a second stirring device, which are connected by a synchronous drive device. The bottom of the medical fly ash silo and the municipal solid waste fly ash silo are equipped with forward and reverse spiral blades, and the output ends of the forward and reverse spiral blades are respectively equipped with a first and a second star-shaped feed valve. The bottom outlets of the first and second star-shaped feed valves are respectively connected to the two ends of the homogenization chamber. The homogenization chamber is equipped with a mixing shaft, which has forward spiral ribbons, reverse spiral ribbons, and shearing teeth. An ultrasonic vibrating plate is installed on the inner wall of the homogenization chamber, and a pneumatic hammer is installed on the outside of the homogenization chamber. This utility model can mix medical waste fly ash and municipal solid waste fly ash in the required proportion and achieve uniform premixing, preparing for subsequent treatment processes, reducing treatment costs, and improving treatment efficiency.

This utility model provides a desulfurization device for flue gas from municipal solid waste combustion, comprising: a combustion component and a desulfurization component. Insulating bricks are fixedly installed inside the combustion component. Both the combustion component and the insulating bricks are connected through multiple air inlet pipes. An ash removal mechanism is installed inside the combustion component. The top of the desulfurization component is fixedly installed to a support, and an end cap is fixedly installed in the middle of the support. The end cap is fixedly connected to a water inlet pipe, and a spraying mechanism is rotatably connected inside the end cap. This application uses a combustion component to incinerate municipal solid waste and sets up multiple air inlet pipes for the supply of air and oxygen, which can achieve complete combustion to improve the treatment effect. Combustion residue is collected by a guide plate to ensure air intake and improve combustion completeness. The desulfurization component absorbs harmful gases in the flue gas. Multiple ring pipes are used to arrange the nozzles, and the nozzles are designed so that the air pressure generated during spraying drives the ring pipes to rotate, improving the desulfurization effect.

This invention discloses a method for preparing ceramsite from municipal solid waste and industrial solid waste, and the ceramsite itself. The raw materials, by dry weight percentage, are: 30%–50% biogas residue, 10%–30% desulfurization ash, 15%–25% desilication sludge cake, and 15%–25% waste bleaching clay. This invention also provides a method for preparing ceramsite from municipal solid waste and industrial solid waste. By classifying municipal solid waste at the source, using biogas residue from fermentation as the main material, and co-processing desulfurization ash, desilication sludge cake, and waste bleaching clay, this method achieves multiple benefits, including waste-to-waste treatment, resource utilization, and safe disposal of hazardous waste, resulting in significant environmental, social, and economic benefits.

This utility model discloses an inverted submerged dosing and stirring device, including a reaction tank, a tank body within the reaction tank, and a stirring motor embedded in the bottom wall of the tank body at the bottom of the tank body. A stirring shaft is provided within the tank body, and the stirring shaft is drively connected to the motor shaft of the stirring motor. Several stirring blades are provided on the stirring shaft, and the stirring blades are inclined upwards. Driven by the stirring motor, the stirring blades rotate with the stirring shaft to form an axial swirling flow from bottom to top. This utility model can reduce the volume of the reaction tank, thereby reducing the volume and space occupancy of municipal solid waste leachate treatment equipment.

This utility model relates to the field of biosynthetic gas treatment technology, specifically disclosing a process system for the co-production of solid wax, liquid hydrocarbons, and hydrogen from biosynthetic gas Fischer-Tropsch synthesis. The system comprises a pretreatment system, a blower system, a compression system, a shift converter system, a desulfurization system, an MDEA decarbonization system, a PSA hydrogen extraction system, a desorbed gas compression system, a fine desulfurization and pressurization system, and a Fischer-Tropsch synthesis system, connected in sequence. This process system utilizes biosynthetic gas from the pyrolysis and gasification of municipal solid waste, producing solid wax, liquid hydrocarbons, and hydrogen through a combination of technologies including Fischer-Tropsch synthesis and pressure swing adsorption. This system converts organic matter in waste into high-value-added chemicals such as solid wax, liquid hydrocarbons, and hydrogen, achieving resource utilization and reducing environmental pollution. Furthermore, the process system can adjust the types and quantities of products according to market demand to maximize economic benefits.

This invention relates to the field of waste incineration system technology, specifically to an energy-saving oxygen-enriched incineration system for municipal solid waste in high-altitude areas. The system includes an incinerator, a secondary combustion section, and an exhaust pipe connected in sequence. The incinerator contains a primary combustion chamber with a first combustion grate. An air supply section is located on the side of the incinerator, containing a mixing chamber. The air supply section is equipped with oxygen supply equipment and a blower connected to the mixing chamber. A horizontal air pipe connected to the mixing chamber is horizontally arranged within the primary combustion chamber. Several vertical air pipes are vertically arranged above the horizontal air pipes, with their upper ends positioned above the first combustion grate. Several short exhaust pipes are arranged on the outer wall of the vertical air pipes, with the exhaust pipes angled downwards from one end connected to the vertical air pipe to the other. This invention addresses the problem in existing technologies where increased energy consumption during the incineration of municipal solid waste in high-altitude areas is easily caused by factors such as oxygen content and temperature.

This utility model relates to the field of gasification technology for municipal solid waste that has undergone shallow carbonization and crushing, and particularly to a circulating fluidized bed gasification device. The device includes a pyrolysis gasification unit, a high-temperature gasification chamber, and a cyclone separator. The bottom of the pyrolysis gasification unit has a first gasifying agent inlet, and the side wall has a coarse particle material inlet and a second gasifying agent inlet. The upper part of the high-temperature gasification chamber is connected to the pyrolysis gasification unit to feed the first volatile matter generated by the pyrolysis of coarse particles in the pyrolysis gasification unit into the high-temperature gasification chamber. The bottom of the high-temperature gasification chamber has a first gasifying agent inlet and a second gasifying agent inlet, and the side wall has a fine particle material inlet. The upper part of the high-temperature gasification chamber is connected to the upper part of the cyclone separator to feed the second volatile matter generated by gasification in the high-temperature gasification chamber into the cyclone separator. The gasification device provided by this utility model can effectively reduce tar content, reduce fly ash content, maintain stable operation, and improve gasification intensity and syngas quality.

This invention relates to a method for promoting dechlorination and inhibiting calcium leaching from waste incineration fly ash, belonging to the field of municipal solid waste resource utilization technology. The method includes the following steps: 60-90% fly ash, 10-40% auxiliary materials, 0-5% additives, and 0-5% regulators are mixed evenly by mass percentage, then mixed with water at a solid-liquid ratio of 1:(2-3.5). The mixture is stirred hydrothermally at 120-200℃ and 0.5-1.5MPa for 1-5 hours. After cooling, solid-liquid separation is performed to obtain solid material and ash washing wastewater. This invention achieves complete leaching and separation of chloride salts in waste incineration fly ash. Simultaneously, the calcium in the fly ash reacts with the silicon and aluminum components in the auxiliary materials to form a calcium-silicon-aluminum mineral phase, thereby inhibiting the dissolution of calcium in the fly ash into the liquid phase and significantly reducing the treatment cost of fly ash desalination wastewater.

A leachate grabber device for municipal solid waste storage bins, through its structural design, allows the hydraulic grabber to grab waste and close shut when flipped to the grabbing position. The waste inside the hydraulic grabber enters the cavity formed by the combination of a ring seat, filter screen, and pressure plate through the material passage and inlet. Then, driven by a second hydraulic cylinder, the inlet is sealed by a movable cover. Driven by a first hydraulic cylinder, the pressure plate approaches the ring seat, and the filter screen deforms under compression, squeezing the waste in the cavity, causing it to be compressed, deformed, and dispersed. Combined with a flipping mechanism that controls the tilt angle and suspension of the filter cylinder, leachate is discharged from multiple angles, passing through the filter screen and a one-way valve into the storage chamber. The liquid level is then measured and the weight calculated. When the liquid level is full, a solenoid valve opens, discharging the waste to a designated collection location. This process is repeated, allowing the waste with further leachate separation to be sent to the incinerator, effectively preventing residual leachate from affecting incineration efficiency.

This utility model relates to the field of municipal solid waste treatment and discloses an automatic sorting and processing device for municipal solid waste. The device includes a housing with two rotating rods rotatably connected to the top interior of the housing. Multiple stirring blades for breaking up clumps of waste are fixedly connected to the outer walls of the rotating rods. The two rotating rods are connected by a transmission assembly to allow them to rotate in opposite directions. Magnetic suction components for separating metal objects from the waste are provided on both the left and right sides of the housing. A separation component for separating lightweight objects from the waste is provided on the bottom interior of the housing. A first collection box for collecting the remaining waste after separation is also provided on the bottom interior of the housing. This utility model prevents waste from clumping and affecting subsequent waste sorting, improving the practicality of the equipment, and prevents metal objects from sticking to the electromagnets and affecting subsequent magnetic suction, thus improving the sorting efficiency of the equipment.

This utility model provides a municipal solid waste leachate treatment device and evaluation equipment, including: a shell, a filter assembly, a drive assembly, and a sedimentation assembly; a valve is fixedly installed at the bottom of one end of the shell; the filter assembly is disposed on the inner side of the shell; the drive assembly is disposed on the inner side of the shell and is used to drive the filter assembly to rotate; the sedimentation assembly is disposed on the top of the shell. The municipal solid waste leachate treatment device provided by this utility model, through the coordinated structure of the shell, filter assembly, drive assembly, and sedimentation assembly, allows the sedimentation assembly to perform preliminary filtration of the leachate, removing larger particulate impurities; the filter assembly achieves secondary solid-liquid separation through a rotating filter cylinder, retaining solid impurities and allowing liquid to permeate through the filter membrane, effectively improving the purification level of the leachate, providing a higher quality water sample for subsequent chemical treatment, and improving the efficiency and effect of the chemical reaction.

This invention discloses a method and system for the zoned co-incineration of medical waste and municipal solid waste. The method includes the following steps: Step 1: Zoned incineration; Step 2: Unloading and transfer: Waste received in the municipal solid waste unloading area and medical waste unloading area are transferred to their respective stockpiling areas for fermentation; Step 3: Mixing: The fermented municipal solid waste and medical waste are transferred to the mixing and feeding area and mixed in layers to form a mixed material. The mixing thickness is determined according to the co-incineration ratio, and the mixing thickness of each layer of municipal solid waste and medical waste is the grab depth of the garbage crane grab bucket; Step 4: Feeding: The mixed material is fed to the feeding port of the incinerator through the grab bucket of the garbage crane. This application effectively solves the management problems and combustion issues in co-incineration through refined zone division and process control, and has high practical value.

The utility model discloses a negative pressure deodorization device of household garbage leachate integrated treatment equipment, which comprises a negative pressure deodorization component, an inlet of the negative pressure deodorization component is connected with an odor collection pipeline, and an outlet of the negative pressure deodorization component is connected with a discharge pipeline for discharging standard gas; a plurality of odor collecting openings are formed in the odor collecting pipeline, and the odor collecting openings are formed in a reaction tank, a sedimentation tank, a biochemical reaction cavity and a cooling cavity of the household garbage leachate integrated treatment equipment or are communicated through pipelines; a negative pressure fan and an odor adsorption part are arranged in the negative pressure deodorization assembly, a suction opening of the negative pressure fan corresponds to an outlet of the odor collection pipeline, and the odor adsorption part is located between the negative pressure fan and the outlet of the odor collection pipeline. According to the utility model, the odor generated during the operation of the household garbage leachate integrated treatment equipment can be collected and purified.

This invention discloses an intelligent sorting method for robotic arms based on point cloud and YOLO, belonging to the interdisciplinary field of robot intelligent control, computer vision, and intelligent manufacturing. Addressing the pain points of existing sorting technologies, such as the contradiction between accuracy and real-time performance, high cost, and poor robustness, this method integrates six core technologies, including cross-modal multi-head attention deep fusion and ROI local point cloud processing. Through six steps—multimodal data acquisition and hierarchical preprocessing, bi-branch feature extraction, cross-modal fusion and secondary matching with a hazardous waste template library, 6D pose estimation, hybrid path planning and refined sorting execution, and full-process closed-loop iterative optimization—it achieves accurate multi-target identification and efficient sorting in complex unstructured scenarios. This method significantly reduces hardware costs, improves real-time performance and robustness, achieves a hazardous waste identification accuracy of ≥98.3%, and an average sorting time per target of ≤2.5s. It can be widely applied to various sorting scenarios such as municipal solid waste and industrial waste, and has strong engineering applicability.

This utility model provides a feeding device for co-firing sludge and municipal solid waste, relating to the field of sludge treatment devices. It includes a first sludge bin filled with sludge of 75%–85% moisture content and a second sludge bin filled with sludge of 55%–65% moisture content. A set of discharge components is respectively installed at the bottom of the first and second sludge bins. Downstream of one set of discharge components is a sludge pumping component, and downstream of the other set of discharge components is a scraper conveying component. A two-fluid spray gun is installed at the end of the sludge pumping component, and a discharge plate is installed at the end of the scraper conveying component. The nozzle of the two-fluid spray gun and the discharge plate both face the feed hopper, used to uniformly mix sludge and municipal solid waste. This alleviates the technical problems of existing technologies, such as the lack of differentiated feeding for sludge with different moisture contents and the impact of improper sludge feeding methods on the operation of the incineration system. It achieves the effects of preventing sludge from entering the waste incinerator in clumps, controlling the feeding amount, and increasing the sludge co-firing capacity of the waste incineration plant.

This utility model discloses a secondary coagulation and sedimentation system for municipal solid waste leachate, comprising: a first reaction tank with a built-in first stirring device; a second reaction tank with its inlet connected to the outlet of the first reaction tank and a built-in second stirring device, the second stirring device having the same or different stirring speed as the first stirring device; a sedimentation tank with its inlet connected to the outlet of the second reaction tank and its outlet connected to a subsequent treatment device; a dosing assembly with its outlet connected to both the first and second reaction tanks to allow the addition of different reagents; and a detection assembly including a first detection element and a second detection element, both electrically connected to the dosing assembly. The first detection element is located in the first reaction tank and is used to detect the water quality in the first reaction tank, and the second detection element is located in the second reaction tank and is used to detect the water quality in the second reaction tank. This utility model can improve the pretreatment effect of municipal solid waste leachate.

This utility model discloses a kitchen waste treatment device, belonging to the field of municipal solid waste treatment technology, comprising: a municipal solid waste storage tank; a discharge port, which is located on one side of the municipal solid waste storage tank and maintains the furthest distance from a filtrate collection tank connected to the municipal solid waste storage tank; a filter layer, which is located inside the municipal solid waste storage tank and directly below the discharge port, for filtering grease from the kitchen waste; a grease treatment mechanism, which is connected to the filtrate tank, for removing grease from the leachate; and a water treatment mechanism, which is connected to the grease treatment mechanism, for treating the water after grease filtration to obtain water that meets the requirements. By setting a filter layer in the municipal solid waste storage tank and using the municipal solid waste itself as the filter medium, the device replaces traditional pretreatment equipment such as sorting, crushing, squeezing, and dewatering, significantly shortening the pretreatment process of kitchen waste.

This invention relates to the field of municipal solid waste treatment technology, and particularly to an integrated municipal solid waste crushing and solidification treatment device. The device includes a casing, within which a lifting pipe is slidably installed vertically. The lower end of the lifting pipe extends to the lower side of the casing. An electric push rod is connected between the upper end of the lifting pipe and the casing. A connecting rod is fixedly connected to the bottom end of the lifting pipe, and a cutting component is fixedly connected to the outer wall of the connecting rod. The integrated municipal solid waste crushing and solidification treatment device provided by this invention, through the setting of a homogenizing mechanism and an anti-splashing mechanism, allows the lower end of the reversing trough to connect with the cavity during crushing. The air jet rotates with the casing, forming an air wall between the upper end of the underground cavity and the outer wall of the casing, effectively preventing crushed waste from splashing onto the ground. When grouting is required, gas is ejected from the air jet, rotating as it is ejected, which agitates the waste below. During agitation, most of the waste does not adhere to the slurry.

This invention discloses a method for degrading municipal solid waste sludge based on interfacial cell disruption and enzyme-mediator co-catalysis, belonging to the field of solid waste treatment and resource utilization technology. Addressing the problems of dense extracellular polymer structures, slow hydrolysis rates, high energy consumption of traditional pretreatment methods, easy secondary pollution, and highly overlapping technical routes in municipal solid waste sludge, this invention employs electro-induced asymmetric plasma interfacial discharge to achieve selective cell disruption of sludge flocs under low-temperature, chemical-oxidant-free, and acid- and alkali-free conditions. Immobilized enzyme-biomimetic redox mediator co-loaded particles simultaneously complete the directional depolymerization of macromolecular organic matter and the construction of electron transport pathways. Furthermore, a pulsed micro-aerobic-anaerobic alternating mode triggered by redox potential in real time intelligently matches the activity of hydrolytic bacteria and methanogenic bacteria, achieving efficient sludge degradation. This invention operates under mild conditions throughout, without secondary pollution, and can significantly improve the soluble organic matter dissolution rate, volatile solids removal rate, and methane yield of sludge, while greatly shortening the hydraulic retention time.

The present application relates to a kind of method for disposing multiple-source solid waste by using domestic waste grate furnace, comprising (1) obtaining the optimal mixing ratio of mixed solid waste by multiple-source solid waste mixing ratio analysis technology;(2) converting the optimal mixing ratio into the optimal grab ratio by multiple-source solid waste partition coupling differential volume multi-grab bucket feeding technology;(3) comparing the optimal grab ratio with the actual grab ratio, adjusting the operation mode of primary air and grate by multiple-source solid waste mixing incineration control technology, and carrying out incineration.The present application can adapt to the change of fuel physical properties caused by the mixing of sludge, biogas residue and other municipal solid waste in the existing waste incineration grate furnace, and realize efficient incineration of multiple-source solid waste.

The application discloses a horizontal baking equipment with anti-winding function, which comprises a rotatable rotating inner cylinder and a flue gas jacket coaxially sleeved outside the rotating inner cylinder; and further comprises a driving type anti-winding shearing mechanism arranged in the internal cavity of the rotating inner cylinder, which comprises a central shaft coaxially arranged with the rotating inner cylinder and at least one group of dynamic shearing blade wings fixed on the central shaft; the central shaft and the dynamic shearing blade wings are both internally provided with a cavity flow channel penetrating each other, so that flue gas entering from the end of the central shaft can flow into the internal cavity of the dynamic shearing blade wings along the internal cavity of the central shaft, and central radiation heating of the rotating inner cylinder is realized. The application solves the problems of long fiber winding, uneven heating, low temperature control precision, improves low-temperature baking energy yield and product homogeneity, and is suitable for shallow carbonization pretreatment of municipal solid waste.

This invention relates to the field of solid waste utilization technology, and in particular to a biomass composite high-efficiency and environmentally friendly fuel and its preparation process. The fuel is composed of agricultural and forestry waste, municipal solid waste, kaolin, diatomaceous earth, calcium oxide, ammonium bicarbonate, and hydrophobic components. Its preparation includes mixing, pressing and molding, pressure-holding decomposition and pore-forming, hydrophobic coating, and drying. This invention utilizes the synergistic solid-alkali desulfurization of kaolin and calcium oxide, the decomposition of ammonium bicarbonate in a confined space combined with controlled pressure relief to construct a permeable porous network in situ, and the dual physicochemical coating of stearic acid and paraffin. This invention effectively inhibits combustion slagging and corrosion, improves combustion reaction kinetics and heat transfer efficiency, and significantly enhances the fuel's resistance to hygroscopic degradation, achieving synergistic, efficient, and environmentally friendly utilization of multiple wastes.

This invention discloses a fully automated feeding device for the collection and transportation of municipal solid waste, used in the field of municipal solid waste treatment technology. It is designed for small collection vehicles to unload waste into large transport vehicles. The device includes: a discharge chute for receiving and temporarily storing waste dumped by the small collection vehicle; and a feeding mechanism located at the discharge port at the bottom of the discharge chute. The feeding mechanism includes a rotating feeder driven by a power unit, which continuously transports the waste from the discharge chute to the loading port of the large transport vehicle and controls the opening and closing of the discharge port. This invention allows small collection vehicles to complete unloading within minutes and leave quickly without waiting for loading by large transport vehicles, greatly improving the operational efficiency and turnover rate of the small vehicles and effectively solving the problem of queuing for small collection vehicles.

This invention relates to the field of waste incineration technology, specifically to a method for preparing combustion rods from aged municipal solid waste, comprising the following steps: Step S1, crushing and screening the aged municipal solid waste to remove large inert materials and metallic impurities; Step S2, performing air separation and / or magnetic separation on the screened material to separate light combustibles from heavy inorganic materials; adjusting the material moisture content to 15%-30% by adding an appropriate amount of conditioning agent according to the material's moisture content and composition, and mixing evenly; Step S3, adding a binder and combustion aid to the conditioning material; Step S4, feeding the mixed material into a molding device and extruding it into columnar combustion rods; Step S5, drying the molded combustion rods at 80-120℃ until the moisture content is ≤15%, cooling, and then packaging. Crushing facilitates subsequent molding into rod-shaped combustion rods, and removing large inert materials and metallic impurities, as well as separating combustible and non-combustible materials through air separation and / or magnetic separation, improves combustion efficiency.

This utility model relates to the technical field of municipal solid waste leachate treatment, and more particularly to a municipal solid waste leachate treatment device. It includes a waste crushing box, a waste squeezing box installed below the waste crushing box, and a material receiving assembly installed below the waste squeezing box. The waste crushing box contains a cutter roller assembly for crushing waste, and a first drive assembly installed on the side of the waste crushing box for driving the cutter roller assembly. The waste squeezing box contains two squeezing plates on opposite sides for squeezing waste, and a second drive assembly connected to the two squeezing plates for driving the two squeezing plates closer together to squeeze the waste. The material receiving assembly includes a first receiving box installed below the waste squeezing box for receiving leachate, and a second receiving box for receiving waste.

This invention discloses a system and method for co-processing and steam generating municipal solid waste and waste amine liquid. The system includes a fuel pretreatment and mixing unit, a co-incineration unit, a high-temperature hot air system, and a waste heat recovery and steam generating unit. The fuel pretreatment and mixing unit includes a municipal solid waste crushing system, a waste amine liquid treatment and storage system, and a mixing and conveying device for mixing municipal solid waste and waste amine liquid. The co-incineration unit includes a rotary kiln incinerator, which is connected to the outlet of the mixing and conveying device. The inlet of a high-temperature gas-to-gas heat exchanger is connected to a hot primary air intake pipe, and the outlet is connected to the combustion air inlet of the rotary kiln incinerator. According to this invention, the system solves the problem of harmless disposal of waste amine liquid and generates saturated steam to supply the regeneration tower of the carbon capture system as a reboiling heat source, achieving complete self-sufficiency in regenerated steam.