3537 results about "Waste recycling" patented technology

The invention provides a cold-bonded pellet used on the raw material of steelmaking or ironmaking and a preparation method thereof. The component and the mass ratio of the cold-bonded pellet are as follows: 8 to 60 percent of precipitator dust and dust sludge, 20 to 85 percent of iron sheet, concentrate powder and iron-bearing auxiliary material, 0.4 to 15 percent of binder. In the preparation method, the moisture in raw material is utilized to directly mix the raw material with other components in a mixer, then the mixture is pressed and formed via a briquetting press after uniform mixing, and the pellet after forming is maintained at room temperature and dried naturally. The cold-bonded pellet of the invention has the advantages of the simple forming process, the low fabrication cost, the rapid hardening of pellet and taking the short time, the high compressive strength, achieving not only the waste recycling and reducing the environmental pollution, but also the high granulation rate, the low damage rate, the wide applicability and the stable quality. The invention is especially suitable for wide application in sintering plant, ironmaking plant and steelmaking plant.

A waste collection device configured to shred, treat waste with disinfectant, and/or remove water from the waste, and a waste recycling system.

The invention discloses a functional bioorganic fertilizer and a semi-organic fertilizer and a preparation method thereof. The method comprises the following steps of: adding microzyme into livestock manure to perform anaerobic and aerobic fermentation; deodorizing, drying and crushing (after biogas slurry of residues after fermentation in a methane tank is separated, the biogas dregs are dried and crushed); adding a certain amount of humic acid, amino acid, borax, ammonium molybdate and zinc sulfate, or also adding nitrogen, phosphor and kalium inorganic nutrients; automatically blending materials by using a computer according to a proportion; after uniformly stirring, granulating by using a granulator, and drying, cooling and screening the grains; and coating a synergist and nitrogen-fixing, phosphorous-dissolving and potassium-releasing composite bacteria on qualified grains to prepare the functional bioorganic and semi-organic fertilizers. The product has the functions of preserving moisture and fertility, resisting drought, coldness, plant diseases and insect pests and the like, improves the soil structure, promoting the proliferation of beneficial microorganisms in soil, jointly participating substance circulation of a soil ecosystem and the like, has quick response and long effect, is mainly used as a base fertilizer for crops to save time and manpower, can realize waste recycling, protects ecological environment, integrates land utilization, land nourishment and land protection, and ensures constant soil productivity.

The invention relates to waste crumb rubber modified asphalt and a preparation method thereof. The waste crumb rubber modified asphalt is prepared by high-shearing mixing of asphalt, a modifier and waste crumb rubber at a temperature of between 150 and 170 DEG C. The interface modifier is made to produce the highest efficacy and the compatibility between the waste crumb rubber and rubber is improved, so as to improve the high-low temperature performance and antiaging performance of the asphalt during use. At the same time, process simplification, cost reduction, waste recycling and environmental pollution reduction are realized.

The invention provides a regenerated wire drawing modified material of waste polypropylene woven bags, comprising the following components in percentage by weight: 1-35 percent of polyolefin fresh material, 25-95 percent of waste polypropylene material, 1-55 percent of enhanced modifier, 1-30 percent of toughening modifier, 0.01-5 percent of activator, 0.1-3 percent of antioxidant, 0.01-6 percent of lubricant and 0.01-6 percent of dispersing agent. The invention also provides a preparation method of the regenerated wire drawing modified material of the waste polypropylene woven bags. In the preparation method, based on the arecovery treatment on the waste polypropylene woven bags, the new wire drawing modified material of woven bags are produced by adding proper amount of other raw materials and auxiliary materials and can be directly used for producing polyolefine flat fibers with stable performance. The performance of a new polypropylene woven tape produced from the prepared material and a small quantity of fresh material is equivalent to a woven bag wholly produced by carrying out granulation and wire drawing on the fresh material. The new polypropylene woven tape can completely satisfy the use performance requirements, dramatically lower the product production cost and provide a proper way for waste recycling utilization and environmental pollution reduction.

The present invention refers to a system, process, and method of collecting, handling and processing paperboard based fast food service items for the production of pulp suitable for reuse into paper or paperboard and the contemporaneous recovery of the waterproofing film for the production of energy.

The invention discloses a waste recycling and tail water treatment method for water tank intensively cultured fishes. The method mainly comprises the following main steps: treating cultured tail waterin a culture pond, precipitating and recycling impurities in the tail water, accelerating tail water to precipitate through a flocculant in a sedimentation tank, and absorbing and utilizing nutritivesalt in the water through aquatic plant, degrading the precipitated culture tail water through aeration, degrading pollutant in the water mainly through a biological agent, ensuring that pollutant ina filter dam can be blocked by fine sand and floating dregs can be removed, and filtered culture tail water finally passes a biological purification tank and is purified again through plant and biological action, and finally discharging the tail water to the culture pond and external river channels separately according to different standards. The method has the advantages that the culture tail water can be effectively circularly utilized, polluted tail water is filtered successively and enters culture finally after meeting standards, recycled culture waste is effectively utilized for the biological and plant growth, and ecological culture circulation is performed.

The invention relates to a rubber-cement grouting material applied to a semi-flexible pavement, belonging to waste recycling field in the environmental protection field and the application field of highway engineering. The rubber-cement grouting material applied to the semi-flexible pavement is characterized by being formed by mixing the components based on parts by weight: 100 parts of cement, 10-50 parts of pulverized fuel ash, 5-30 parts of expanding agent, 1-30 parts of rubber powder, 10-50 parts of sand, 0.1-5 parts of water reducing agent, 0.1-5 parts of early strength agent and 40-70 parts of water. The rubber-cement grouting material has high fluidity and anti-cracking property, lower contraction and higher early strength, and can meet the groutability and pavement performance of the semi-flexible pavement material.

The invention discloses a tea-scented midsole material, made from, by weight, 15 parts of first POE (polyolefin elastomer), 55 to 75 parts of EVA (ethylene vinyl acetate) plastic pellets, 10 to 25 parts of second POE, 5 to 20 parts of thermoplastic rubber, 3 to 5 parts of talc, 5 to 10 parts of tea pole powder, 0.8 to 1.5 parts of stearic acid, 0.4 to 1.5 parts of zinc oxide, 4 to 10 parts of foaming agent, 0.5 to 1.0 part of tasteless bridging agent, and 0.5 to 1.0 part of color master batch. The first POE is a Dupont elastomer with its tradename of INFUSE and grade of 9107; the model number of the EVA plastic pallets is 7350M; the second POE is a Mitsui elastomer with its tradename of TAFMER and grade of DF740; the thermoplastic rubber is an Asahi Kasei SEBS thermoplastic elastomer with its grade of JT-83. Compared with the prior art, the material has a weak tea scent and antibacterial, mildew-proof and color-fixing characteristics, the waste tea pole powder is used for preparation, purchasing the tea pole powder is not necessary, thus waste materials generated by tea leaves can be effectively utilized, and the national call for waste recycling is answered.

The invention discloses a building panel drilling device with a waste recycling function. The building panel drilling device comprises a supporting platform. Hydraulic cylinder devices are arranged atthe left end and the right end below a beam plate. Piston rods are arranged below the hydraulic cylinder devices. A lifting plate is fixedly welded to the lower portions of the left piston rod and the right piston rod. Sleeve bases which are in cup joint to a front stand column and a rear stand column are arranged on the left side wall and the right side wall of the lifting plate. Fixing tables are arranged at the left end and the right end below the lifting plate. A material collecting hopper is arranged below the supporting platform. Waste suction pipes are evenly arranged above the material collecting hopper and penetrate the upper end face of the supporting platform. A dust suction device is fixedly arranged at the left end above the supporting base, and the right side of the dust suction device is connected with the material collecting hoper through a dust guiding pipe. According to the building panel drilling device with the waste recycling function, the dust suction device canbe started in the drilling process for collecting dust waste in the drilling process into the material collecting hopper through the waste suction pipes, and accordingly environment pollution in the work process is reduced.

The invention belongs to the technical field of a limestone/gypsum wet flue gas desulfurization technology, and particularly relates to an additive for strengthening a wet flue gas desulfurization technology, which comprises the following components in percentage by mass: 35-45% of mixed organic acid, 5-10% of organic acid salt, 6-9% of surfactant, 1-6% of heavy metal salt and 35-45% of dirt dispersion agent; and the mixed organic acid comprises adipic acid, wherein the percentage of mass of the adipic acid in the mixed organic acid is not less than 50%. The additive can be added and used for strengthening the wet flue gas desulfurization technology, improve the desulfurization efficiency of a system, reduce the energy consumption, strengthen oxidization, improve the limestone quality and restrain system scaling, and accordingly, the purposes of energy conservation, consumption reduction and waste recycling are realized.

The invention relates to a method for recycling carbon from an aluminum electrolytic waste cathode through ultrasonic-assisted pressure acid leaching and belongs to the technical field of aluminum electrolytic solid waste recycling. The method comprises the steps that after a carbon block of the aluminum electrolytic waste cathode is crushed, ultrasonic pretreatment is conducted, pretreated powder is added into an acid leaching solution for pressure leaching, carbon and filtrate are obtained through filtering, the filtrate is subjected to evaporative crystallization, and mixed powder of sodium salt and aluminum salt is separated out. According to the method, under the synergistic effect of ultrasonic pretreatment and pressure acid leaching, efficient, clean and high-purity recovery of precious matter in the carbon block of the aluminum electrolytic waste cathode is achieved. The technique is simple, operation is convenient, the reaction speed is high, secondary pollution is not generated, and the method is suitable for large-scale treatment of the carbon blocks of the aluminum electrolytic waste cathodes. The whole carbon recovery technological time is 60 min, the carbon recovery rate is 95.74%, and the purity of carbon powder is 97.42%.

The invention provides a cobalt nickel metallurgy wastewater sludge recycling method, and belongs to the field of waste recycling. The method comprises the following steps: carrying out acid dissolution reduction on cobalt nickel metallurgy wastewater sludge to leach out valuable metals in the wastewater sludge, displacing copper by using manganese powder to recover copper, precipitating zinc by using manganese sulfide to recover zinc, using a fluoride to remove calcium and magnesium from the obtained zinc removed solution, carrying out advanced impurity removal and cobalt nickel manganese enrichment by using a P2O4 extractant, and carrying out advanced impurity removal on the obtained solution rich in cobalt, nickel and manganese by using manganese sulfide to obtain a solution for preparing an NCM ternary precursor. The method allows nickel, cobalt, manganese, zinc, copper and other metals to be completely recovered and the obtained cobalt, nickel and manganese solution to be used to prepare the NCM ternary precursor as a raw material, avoids cobalt, nickel and manganese separation, and also has the advantages of simple process, substantial improvement of the metal recovery rate, low cost, harmlessness to environment, and industrialization prospect.

The invention discloses a method for preparing a paint raw material from a paint waste residue, and the method comprises the following steps of: preprocessing the paint waste residue, classifying, removing impurities, then adding an additive and a protecting agent, and uniformly dispersing; sending the preprocessed paint waste residue to an organic waste recycling system, setting a proper temperature and then carrying out separation modification; recycling solid components to form thick plaster-shaped modified resin and packaging; collecting mixed steam of a solvent and water through gas and then condensing so as to separate gas from liquid, carrying out tail gas purification on the gas part and discharging the gas part when the gas part reaches the standard, carrying out oil-water separation on the liquid part to ensure that water is separated from the solvent, collecting the solvent for concentrated utilization, and carrying out wastewater treatment on the water and then dischargingwhen the gas part reaches the standard. A large quantity of organic solvent is not adopted in the method, water can be well separated from the paint waste residue, and the prepared paint raw materialhas the advantages of lower organic solvent content, lower danger and the like, thus the paint raw material can be safely used in various medium- and low-end coating raw materials.

The invention belongs to the technical field of garbage disposal equipment and discloses a pipeline transporting spiral crushing device for solid waste and household garbage. The pipeline transporting spiral crushing device for the solid waste and the household garbage is used for solving the problems that because a direct recycling manner is adopted for scenic spots, stations, airports and other sites which are huge in waste amount and require instantaneous recycling in the prior art, a conveying pipeline can be blocked easily, and the gas explosion noise can be caused easily. The pipeline transporting spiral crushing device for the solid waste and the household garbage comprises a machine body which is provided with a feeding bin; the lower end of the feeding bin is communicated with a feeding channel; the lower end of the feeding channel is communicated with a spiral crushing barrel; the lower end of the spiral crushing barrel is communicated with a conveying pipeline of a matched pneumatic waste recycling system; a hollow rotating shaft is arranged in the spiral crushing barrel; spiral blades are arranged on the periphery of the hollow rotating shaft; a plurality of through grooves formed in the axial direction of the hollow rotating shaft are formed in the circumferential wall of the hollow rotating shaft; a core shaft capable of rotating along with the hollow rotating shaft and capable of moving up and down along the hollow rotating shaft is arranged in the hollow rotating shaft in a sleeved manner; and the core shaft is connected with a plurality of longitudinal cutters capable of sliding up and down in the through grooves.

The invention discloses a method for synthesizing a superfine Y-type molecular sieve by using FCC spent catalyst fine powder, and belongs to the field of solid waste recycling. The method comprises the following steps of dissolving an FCC spent catalyst by using alkali for activation, and preparing the superfine Y-type molecular sieve by utilizing structure-oriented hydrothermal synthesis technology under the condition of adding a silicon source. The particle size of the obtained molecular sieve is controlled by a synthetic condition, particularly the activation condition of raw materials, and the particle size of the product can reach about 200 nm. Besides, the obtained product has a larger specific surface and a stable structure, and has a lamellar structure. In the method, the greening production process of the FCC is optimized, and the high-efficiency recycling of waste resources is realized, so that the method has good industrialized application prospect.

The invention discloses a recycling and processing device for waste bricks and tiles for construction, which comprises a bottom plate, a left side plate is fixed on the upper left part of the bottom plate, a right side plate is fixed on the right side of the bottom plate, and a top plate is fixed on the top of the left side plate and the right side plate. There is a pre-crushing device on the top of the top plate. The pre-crushing device includes a movable jaw plate and the first L-shaped rod. There is a secondary crushing device below the pre-crushing device. The secondary crushing device includes a crushing box, a motor, an eccentric disc, a rotating shaft and A pulverizer, a grinding device is provided below the secondary pulverizing device, and the grinding device includes a grinding groove, a grinding ball, an internally threaded sleeve, a threaded rod, a gear, a rack and a connecting rod, and the present invention is provided with a pre-crushing device, and the waste brick and tile Pre-crushing is carried out to facilitate subsequent further crushing and grinding. There is a secondary crushing device for secondary crushing of waste bricks and tiles to improve the crushing efficiency. Efficiency for subsequent recycling.

The invention discloses an organic waste recycling method and a sterilization apparatus used in the method. The method comprises the following steps: collecting; carrying out anaerobic fermentation to obtain biogas, primary biogas residue and primary biogas slurry; carrying out secondary fermentation: adding a certain amount of biological inoculant and an auxiliary material into the primary biogas slag, modifying, and carrying out secondary fermentation to obtain secondary biogas residue and secondary biogas slurry; carrying out low temperature drying on the secondary biogas residue at 45-60DEG C, and crushing to prepare a solid organic fertilizer; processing the biogas slurry to prepare a liquid fertilizer; and depositing organic wastewater, carrying out flash evaporation, purifying through carrying out silver ion sterilization, mixing the obtained purified water with the liquid fertilizer, and carrying out field irrigation spraying. The sterilization apparatus comprises a heating tube, the heating tube is a cylinder with the bottom buckled to the arc-shaped top, the inner wall of the arc-shaped top is provided with a plurality of exhaust pipes, and the bottom is provided with a plurality of separation plates to form an S-shaped channel extending along the bottom; and the sterilization apparatus also comprises a steam generation device, wherein biogas is used to heat in order to generate steam.

The invention discloses an urban waste classification treatment monitoring system based on the Internet of Things. The system provided by the invention contains a central processing module; a satellite positioning module which forms a wireless connection with the central processing module; several wet waste treatment monitoring systems which respectively form a wireless connection with the central processing module and are used to monitor the wet waste treatment flow of a wet waste recycling bin, a regional wet waste centralized recycling station, a wet waste transport station, a wet waste transport vehicle and a wet waste disposal factory at real time; and several dry waste treatment monitoring systems which respectively form a wireless connection with the central processing module and are used to monitor the dry waste treatment flow of a dry waste recycling bin, a regional dry waste centralized recycling station, a dry waste transport station, a dry waste transport vehicle and a dry waste disposal factory at real time. According to the invention, dry and wet wastes are separated for processing so as to minimize waste moisture and burning fetor, increase burning calorific value, promote energy conversion and raise waste utilization rate.

The invention belongs to the technical field of solid waste recycling and discloses a method and a system for processing red mud to recycle refined iron powder. The method for processing the red mud to recycle the refined iron powder includes steps that mixing the red mud with water, and performing high intensity magnetic roughing to obtain high intensity magnetic separation concentrate and high intensity magnetic separation tailings; removing alkaline from the high intensity magnetic separation concentrate to obtain neutral high intensity magnetic separation concentrate with pH value about 7; after airing or drying the neutral high intensity magnetic separation concentrate, scattering to obtain powder; after pre-heating the powder, sending to a flash magnetization roasting furnace to perform magnetization roasting to obtain roasted red mud; cooling to obtain cool roasted red mud; performing low intensity magnetic separation to obtain the refined iron powder and tailings. According to the method and system for processing the red mud to recycle the refined iron powder, the roasting reaction speed is fast, the time is short, the energy consumption is low, and the refined iron powder with high iron grade and high iron recovery is obtained after performing low intensity magnetic separation.

The invention relates to a process method for preparing a catalyst by using electrolysis waste water and electrolysis sludge, and belongs to the technical field of waste recycling and environmental engineering. The process method comprises the following process steps: mixing, stirring, settling, separating solid from liquid, drying, calcining and the like. Through the coordinated treatment of electrolysis waste water and sludge, which are industrial wastes, and industrial CO2, the use of the process method has a great significance for the treatment of electrolysis waste water and the emission reduction and capture of green house gases, fully utilizes wastes and fulfils the aim of recycling; and a catalyst can be obtained, the environment pollution can be relieved, and the aim of treating waste with waste is fulfilled.