293 results about "Waste rubber" patented technology

The invention discloses ceramsite lightweight aggregate structural concrete and a preparation method thereof, and belongs to the technical field of concrete. The ceramsite lightweight aggregate structural concrete is prepared from the following raw materials in parts by mass: 240 to 270 parts of cement, 25 to 35 parts of mineral powder, 80 to 95 parts of fly ash, 210 to 250 parts of coal gangue crushed materials, 725 to 805 parts of modified coal gangue ceramsite, 10 to 30 parts of waste rubber materials, 3.5 to 5 parts of water reducing agents and 165 to 180 parts of water. The modified coal gangue ceramsite is obtained by coating the surface of a coal gangue ceramsite matrix with an epoxy resin layer and then grafting a hydrophilic polymer, the porosity of the coal gangue ceramsite matrix is 40-60%, and the aperture ratio is 1.5-6%. The epoxy resin layer on the surface of the modified coal gangue ceramsite provides an anti-permeability barrier, the hydrophilic polymer on the surface adjusts the wettability of the ceramsite, the binding force with other components of the concrete is improved, and the concrete has excellent shrinkage and dry crack resistance.

The invention belongs to the technical field of RAP recycled asphalt mixtures, and particularly relates to a high-dosage RAP recycled asphalt mixture for alpine regions and a preparation method of the high-dosage RAP recycled asphalt mixture. The high-dosage RAP recycled asphalt mixture for the alpine region is characterized by comprising the following components in percentage by mass: 50-60% of RAP, 3-6% of mineral powder, 1-3% of new asphalt, 1-2% of a composite regenerant, 1-2% of a modifier and the balance of a new aggregate, the composite regenerant is composed of pine tar, plant-based epoxy ester oil, cashew nut shell oil and a penetrant. The modifier is prepared from regenerated low-density polyvinyl chloride, hyperbranched epoxy resin and liquid polybutadiene rubber coated waste rubber powder. According to the technical scheme provided by the invention, the technical problems of poor low-temperature performance, water stability and freeze-thaw cycle stability when a high-dosage RAP recycled asphalt mixture is used in an alpine region are solved.

The application relates to the technical field of pavement materials, and particularly discloses a high-strength asphalt-based pavement material and a preparation method and application thereof. The high-strength asphalt-based pavement material comprises the following raw material components in mass fractions: waste rubber powder 60-80 parts, base asphalt 20-50 parts, sodium lignosulfonate modified petroleum resin 10-20 parts, deacidified waste oil 5-15 parts and solid filler 20-30 parts; wherein the raw material components of the solid filler comprise furan resin glass fiber reinforced material, cement kiln dust, blast furnace slag and coal gangue powder. The high-strength asphalt-based pavement material provided by the application has excellent road performance, can maintain good stability at low temperatures, is not prone to cracking, the raw material components are cheap and easy to obtain, the preparation cost is low, and the treatment pressure of solid waste can be effectively relieved.

The invention provides a waste rubber and plastic pyrolysis system and application thereof.The waste rubber and plastic pyrolysis system comprises a feeding unit comprising a feeding bin, a material conveying mechanism and an anaerobic protection mechanism, a pyrolysis reaction unit comprising a first-stage pyrolysis reactor and a second-stage pyrolysis reactor, and each pyrolysis reactor at least comprises a heating cavity, a material conveying device and a heating source; the heating cavity provides a closed high-temperature environment under the action of the heating source, the material conveying mechanism pushes materials in the heating cavity in the preset direction, and an outlet of the first-stage pyrolysis reactor communicates with an inlet of the second-stage pyrolysis reactor, so that the materials sequentially pass through the first-stage pyrolysis reactor and the second-stage pyrolysis reactor to be subjected to multi-stage pyrolysis. The product recycling structure comprises a pyrolysis gas purifying and condensing device, the pyrolysis gas purifying and condensing device is connected with the second-stage pyrolysis reactor, and by applying the technical scheme, the technical problem that in the prior art, waste rubber and plastic pyrolysis and equipment carbon residue treatment are difficult can be effectively solved.

The invention discloses basalt fiber reinforced low-carbon environment-friendly asphalt and a construction method of the basalt fiber reinforced low-carbon environment-friendly asphalt on a high and cold road surface, and relates to the technical field of road engineering. The basalt fiber is subjected to ultrasonic treatment by a silane coupling agent KH-550 hydrolysate and dried, and the low-carbon additive is prepared from waste rubber powder and biological asphalt and is matched with an anti-stripping agent; adding biological asphalt, stirring at a high speed, adding basalt fibers in three times, stirring at a high speed, and finally adding an anti-stripping agent to prepare an asphalt composition; adding an asphalt composition for wet mixing, and then adding fibers for continuous mixing to obtain a mixture; after the lower bearing layer is preheated, a crawler-type paver paves at the temperature of 155-165 DEG C, and the speed and the loose paving coefficient are controlled; initial pressing, re-pressing and final pressing are carried out, and a double-steel-wheel and rubber-wheel road roller is used for rolling according to the temperature and the speed; and after compaction, the heat-insulating tarpaulin is covered. The low-temperature crack resistance and freeze-thaw resistance of the basalt fiber reinforced asphalt, the carbon emission reduction of the waste rubber powder and the biological asphalt and the construction quality guarantee through dynamic temperature control and intelligent compaction are realized, and the construction method is adaptive to the alpine regions and meets the requirements of green road construction.

The invention relates to the technical field of road engineering, in particular to an all-solid waste rubber-based composite modified foam cold recycled asphalt mixture and a preparation method thereof, and the all-solid waste rubber-based composite modified foam cold recycled asphalt mixture comprises the following components in parts by mass: 150-200 parts of graded precisely-controlled recycled aggregate, 10-25 parts of recycled mineral activity enhancing powder, 5-10 parts of an industrial solid waste reinforcing agent and 20-40 parts of solid waste-based recycled foam asphalt. The mixture utilizes various solid wastes for recycling, has excellent pavement performance, high strength, crack resistance and durability, can be constructed at normal temperature or low temperature, and is low in energy consumption and environment-friendly. Through composite modification of foamed asphalt and rubber powder, early strength and stability are significantly improved, the problem of slow development of early strength of a cold recycled material is overcome, the construction period is shortened, and traffic is quickly opened. The method is simple in process, low in cost and convenient to construct, meets the requirements of green and low-carbon construction, provides a new way for the double-carbon target in the traffic field, and is remarkable in economic and social benefits and wide in application prospect.

The invention discloses a multifunctional foam pad made of a regenerated composite material and a production process of the multifunctional foam pad, and belongs to the technical field of production of regenerated composite materials. The surface of the recycled PET non-woven fabric printing layer is provided with 50 + / -5 [mu] m micropores, the cat palm bionic gradient foaming layer (the density is 0.15-0.35 g / cm < 3 > gradient distribution) is formed by blending and foaming PVC recycled materials, PET bottle chips and waste rubber powder, and the glass fiber net reinforced rubber matrix layer and the triangular pyramid micro-sucker bottom layer are arranged from top to bottom. The preparation process comprises the steps of waste material near-infrared sorting and pretreatment, multi-stage dynamic blending granulation, supercritical CO2 gradient foaming, bionic calendaring forming and laser positioning hot-pressing compounding, high-valued utilization of multi-element waste materials is achieved through combination of bionic structure design and a green process, the product has sound insulation, buffering and anti-skid performance, the tear resistance is improved by 150%, and the service life of the product is prolonged. The problems that a traditional foaming cushion depends on raw plastic, is single in function and causes manufacturing pollution are solved, and resource circulation and function strengthening unification are achieved.

The invention relates to the technical field of pavement materials, and particularly discloses an all-solid waste asphalt mixture as well as a preparation method and application thereof. The all-solid waste asphalt mixture is prepared from the following raw material components: activated waste rubber powder, waste rubber powder modified emulsified asphalt, a waste asphalt-based pavement material, aggregate, a fiber material and an additive, wherein the aggregate comprises coal gangue powder, waste magnesia carbon brick powder, nut shell powder, coarse aggregate, steel slag powder and fine aggregate; the fiber material comprises activated aramid fiber and waste rubber powder modified glass fiber reinforced plastic fiber; the additive comprises a smoke suppression viscosity reducer and a styrene-butadiene-styrene block copolymer. The all-solid waste asphalt mixture with excellent pavement performance is prepared by utilizing the synergistic effect of all the component raw materials, and the problem that the pavement performance of an asphalt regenerated mixture is poor due to the fact that existing solid waste is poor in compatibility with other components when being applied to the asphalt regenerated mixture is effectively solved.

The invention provides a method for preparing anti-permeation anti-corrosion filler by using waste rubber and anti-corrosion paint, and belongs to the technical field of paints.The method comprises the steps that the waste rubber is smashed and sieved to obtain rubber particles, then the rubber particles are sequentially subjected to acid pickling, alkali washing and water washing and dried, then the rubber particles are added into tetrachloroethylene to be chlorinated, flocculent products are removed through an air blowing rotary furnace, and the anti-permeation anti-corrosion filler is obtained; and adding the rubber particles into tetrachloroethylene again for chlorination, carrying out bubbling operation, and draining to obtain the anti-permeation and anti-corrosion filler. The chlorine content of the impermeable anticorrosive filler prepared by the method is increased, the corrosion resistance is enhanced, and an anticorrosive coating prepared from the filler can effectively solve the problem of diffusion of water molecules, also can effectively inhibit permeation and migration of corrosive medium chloride ions, and can greatly improve the impermeability.

The invention discloses a preparation method of high molecular weight waste rubber powder carboxylation modification and dynamic cross-linked rubber, and belongs to the technical field of high molecular weight waste rubber powder carboxylation modification and dynamic cross-linked rubber preparation. The preparation method comprises the following steps: S1, dispersing high-molecular-weight waste rubber powder in a solvent, adding acrylic acid and an initiator, and heating and stirring to obtain carboxylated waste rubber powder; s2, plastifying the matrix rubber on an open mill for roll coating, adding the carboxylated waste rubber powder in batches, and adding a cross-linking agent and an anti-aging agent at the same time to obtain masterbatch; s3, putting the master batch into an internal mixer, raising the temperature of the master batch to a preset dynamic crosslinking temperature, adding sulfur, an accelerant and other vulcanizing aids, and vulcanizing. Compared with the prior art, reversible chemical bonds can be formed at the interface of rubber powder particles and matrix rubber, and the chemical bonds can be temporarily broken during high-temperature processing and can be re-formed after cooling, so that the strength and the elasticity of the material are recovered.

The invention discloses high-weather-resistance and high-durability asphalt concrete and a preparation method thereof. On one hand, the invention provides the asphalt concrete with high weather resistance and high durability, and the asphalt concrete is prepared from the following components in parts by weight: 38 to 44 parts of coarse aggregate, 18 to 24 parts of fine aggregate, 8 to 12 parts of superfine filler, 6 to 10 parts of SBS (Styrene Butadiene Styrene) modified asphalt and 6 to 8 parts of asphalt modifier; the asphalt modifier is prepared from the following components in parts by weight: 20 to 24 parts of carboxymethyl chitosan microcapsules coated with an aromatic hydrocarbon oil repairing agent, 6 to 10 parts of waste rubber powder, 10 to 12 parts of epoxy resin, 4 to 8 parts of nano silicon dioxide and 8 to 12 parts of basalt short fibers. On the other hand, the invention further provides a preparation method of the high-weather-resistance and high-durability asphalt concrete. According to the present invention, the cost is relatively low, the low-temperature crack resistance and the high-temperature rutting resistance can be effectively improved, and the anti-aging performance and the durability are strong.

The invention discloses a basalt fiber reinforced asphalt mixture based on solid waste synergy and a preparation method of the basalt fiber reinforced asphalt mixture, and belongs to the field of asphalt mixtures. The basalt fiber reinforced asphalt mixture based on solid waste synergy is prepared from the following raw material components in parts by mass: 1000 to 1200 parts of aggregate, 3 to 5 parts of modified basalt fiber, 50 to 73 parts of waste rubber modified asphalt, 2 to 4.38 parts of amphiphilic epoxy resin, 0.7 to 1.5 parts of curing agent and 0.06 to 0.13 part of accelerant, the modified basalt fiber is obtained by modifying triethoxysilyl butyraldehyde, 3-mercaptopropyltrimethoxysilane and allyl-1, 3-sultone, and the modified basalt fiber is prepared by modifying the triethoxysilyl butyraldehyde, the 3-mercaptopropyltrimethoxysilane and the allyl-1, 3-sultone; the amphiphilic epoxy resin is obtained by reacting dodecyl succinic anhydride, polyethylene glycol monomethyl ether 2000 and epoxy resin; m-phenylenediamine and 2-amino-4-cyanopyridine are adopted as the curing agent; n-methylimidazole is adopted as the accelerant; the asphalt mixture prepared by the invention has good rut resistance, crack resistance and water stability.

The present application relates to the technical field of rubber crushing, in particular to a waste rubber pyrolysis and crushing processing equipment, which comprises a base, a lower hopper, a crushing unit and a receiving hopper, positioning pin shafts are fixedly installed on both sides of the base, a transmission shaft is rotatably connected to the top of the base, a driving motor is installed on the top surface of the base, the output end of the driving motor is rotatably connected to the bottom end of the transmission shaft, and the number of the crushing units is three.In the present application, the material is extruded towards the conical screen mesh through the rotation of the tile ring, so that part of the blocky material passes through the screen holes on the conical screen mesh to the inside of the conical screen mesh, and the part of the material passing through the conical screen mesh is cut when the execution module rotates, thereby realizing the cyclic cutting and crushing of the material.The present application utilizes the elasticity of waste rubber itself, extrudes the material through the tile ring in cycles, and cuts the part protruding to the inside of the conical screen mesh, thereby realizing the multiple crushing of the blocky material.

The utility model discloses a rubber breaking mechanism for rubber mixing, which belongs to the field of waste rubber recovery and comprises a box body, four corners of the bottom of the box body are fixedly connected with supporting legs, the top of the box body is fixedly connected with a protective cover, the bottom of the box body is provided with a blanking component, and a rubber breaking component and a cleaning component are arranged in the box body. The cleaning assemblies comprise cleaning rollers rotationally connected between the inner walls of the box body, ventilation cavities are formed in the cleaning rollers, a plurality of air blowing holes are formed in the outer walls of the cleaning rollers, air supply assemblies are arranged on the side walls of the box body, and the air supply assemblies are used for supplying air into the ventilation cavities formed in the cleaning rollers. The rubber cleaning device has the beneficial effects that air is supplied to the interior of the cleaning roller through the air supply assembly, air is blown to the rubber breaking roller in the rotating process of the cleaning roller, on one hand, softened rubber can be conveniently cooled to be conveniently cleaned after being solidified, on the other hand, the rubber clamped in the rubber breaking roller is loosened through air blowing, and the cleaning efficiency is improved.

The application relates to the technical field of composite asphalt materials, in particular to a composite asphalt material based on modified SBS and a preparation method thereof, which comprises the following steps: S1. After heating, base asphalt is added with aromatic oil, and stirring is carried out for 15-20 min to obtain softened asphalt; S2. Preparation of modified SBS; S3. Modified SBS is gradually added into the softened asphalt, and shearing is carried out for 30-40 min; S4. Modified waste rubber powder is added, and after continuous shearing, sulfur is added, development is carried out at a rotating speed of 800-1000 rpm for 50-60 min, and the composite asphalt material based on modified SBS is obtained after standing and defoaming. Through the synergistic effect of modified SBS, modified waste rubber powder and modified additives, the synchronous improvement of high-temperature performance, low-temperature performance and fatigue resistance is realized, the performance attenuation rate of the composite asphalt material under the conditions of thermal oxygen aging and ultraviolet aging is reduced, and the service life of the asphalt pavement is prolonged.

The utility model relates to the technical field of waste rubber regeneration, in particular to a mixing device for devulcanizing and plasticizing waste rubber, which comprises a mixing barrel, a crushing and stirring component rotatably arranged in the mixing barrel, a driving component vertically and slidably arranged on the mixing barrel, and a lifting component arranged on the mixing barrel and positioned below the driving component, the driving assembly is in transmission connection with the crushing and stirring assembly, the driving assembly drives the crushing and stirring assembly to rotate, the lifting assembly is connected with the driving assembly, and the lifting assembly drives the driving assembly to vertically slide; the motor drives the transmission shaft to rotate so as to drive the crushing cutter arranged at the upper part of the filter screen to crush the waste rubber raw material again, so that the situation that some waste rubber fragments which are not crushed thoroughly influence and reduce the quality and performance stability of regenerated rubber is prevented; an electric push rod is started to drive a moving plate to move upwards, and then a transmission shaft connected through a synchronous rod is driven to move upwards, so that the filter screen is moved to the outside of the mixing barrel, and a worker can conveniently clean the filter screen.

This application discloses an automated control method and system for waste rubber recycling equipment, relating to the field of waste rubber recycling technology. It is used to control the initial pyrolysis process in a pyrolysis reactor. The method includes the following steps: before the waste rubber enters the pyrolysis reactor, obtaining the effective moisture content and bound water content level of the waste rubber; selecting a corresponding initial pyrolysis treatment strategy based on the effective moisture content and bound water content level to suppress pressure fluctuations and energy consumption surges caused by rapid moisture evaporation during the initial pyrolysis process; and adjusting the temperature rise management curve, pressure relief management threshold, pressure relief management method, and waste rubber feeding management rate of the initial pyrolysis process according to the selected initial pyrolysis treatment strategy to achieve heating control, pressure control, and feeding control of the initial pyrolysis process. This application can effectively suppress pressure fluctuations and energy consumption surges caused by rapid moisture evaporation during the initial pyrolysis process, reducing the probability of production interruption.

The application provides a high-strength and high-toughness PVC profile and a preparation method thereof. The high-strength and high-toughness PVC profile comprises a first high-strength layer, a first fiber layer, a PVC layer, a second fiber layer and a second high-strength layer in sequence. The first high-strength layer and the second high-strength layer each comprise the following components in parts by weight: PVC resin 100-150 parts, calcium-zinc stabilizer 3-5 parts, reinforcing particles 15-20 parts, internal lubricant 0.5 part, external lubricant 0.5 part and stearic acid 0.2 part. The reinforcing particles are modified waste rubber particles. The first fiber layer and the second fiber layer are formed by rolling PVC slurry on fiber fabric, so that the comprehensive performance of the PVC profile is effectively improved.

The present application relates to the technical field of modified asphalt, and relates to cottonseed biological oil pre-desulfurization rubber powder modified asphalt and a preparation method thereof, wherein cottonseed oil residues containing unsaturated fatty acids are used to pre-swelling desulfurization of waste rubber powder, a three-dimensional cross-linking network of the rubber powder is effectively destroyed, functional group reconstruction is promoted, the compatibility and interface physical embedding of the rubber powder and base asphalt are improved, and the problem of easy delamination is overcome; the lubricating and diluting effects of the biological oil can reduce the tackifying effect of the rubber powder and reduce the structural viscosity of the modified system; the swelling rubber powder forms a dense elastic network in the matrix, which not only retains strong high-temperature anti-rutting and anti-permanent deformation capability, but also reduces the low-temperature stiffness modulus, improves the low-temperature flexibility and stress relaxation capability of the asphalt; the preparation method realizes high-value utilization of waste tires and oil refining waste residues, and has environmental protection and economic benefits.

The utility model provides an automatic feeding device for waste rubber oil refining, the automatic feeding device for waste rubber oil refining comprises an automatic feeding device body, the automatic feeding device body comprises a material rack, a material box, a rotating mechanism and a moving mechanism, the material rack is connected with the material box, an extrusion mechanism is arranged in the material box, and the rotating mechanism is connected with the moving mechanism. The material frame is connected with the fixing frame through a rod piece, the fixing frame is connected with the moving mechanism, and the bottom of the fixing frame is connected with the supporting column. The moving mechanism is matched with the rotating mechanism, so that the push rod moves back and forth repeatedly, the intermittent feeding effect is achieved, and material accumulation caused by continuous feeding is prevented; and a push plate is arranged on a push rod, so that materials which fall into a containing groove and are not placed correctly can be corrected, when the materials in the material box are blocked and cannot fall off through the extrusion mechanism, the materials can be extruded downwards through cooperation of a screw and a pressing plate in the extrusion mechanism, the materials fall off, and the device can operate normally.

The invention relates to the technical field of high polymer materials, in particular to a modified asphalt coating as well as a preparation method and application thereof. The modified asphalt coating is prepared from, by weight, 40-60 parts of modified asphalt, 10-25 parts of waste rubber powder and 0.5-1 part of a rubber regeneration activating agent, the rubber regeneration activating agent is bis (2-nitrophenyl) disulfide, and the modified asphalt is nanoscale graphene or carbon nano tube modified asphalt. According to the invention, the waste rubber powder is regenerated by the specific rubber regeneration activator, and the component quality control is cooperated, so that the regeneration effect of the waste rubber powder is remarkably improved, and the mechanical properties and weather resistance of the modified asphalt coating applied to coiled material preparation are further effectively improved.

The utility model discloses a waste discharge adhesive tape winding mechanism and a GDL cutting forming device. The waste discharge adhesive tape winding mechanism comprises a fixing frame, a winding assembly and a broken tape detection assembly. The winding assembly comprises an air swelling shaft, a winding torque motor and a plurality of winding units, the winding torque motor is hung below the fixing frame, one end of the air swelling shaft is connected with the winding torque motor, and the air swelling shaft is sleeved with the winding units; the winding unit comprises an assembly inner ring, an assembly outer ring, a friction plate and a plurality of adjusting screws, the assembly inner ring is sleeved and fixed on the air expansion shaft, the assembly outer ring is sleeved on the assembly inner ring, a ball bearing is arranged between the assembly outer ring and the assembly inner ring, the friction plate is sleeved on the air expansion shaft, and the adjusting screws are arranged on the air expansion shaft. The friction plate is arranged in the assembling inner ring and attached to one side of the assembling inner ring and one side of the assembling outer ring, and the adjusting screw penetrates through the friction plate and is embedded into the assembling inner ring. According to the utility model, the winding efficiency of the waste discharge adhesive tape is effectively improved.

The utility model relates to the field of waste rubber processing especially, and more particularly to a kind of auxiliary waste rubber mechanochemical regeneration extruder, including base, shell, feed inlet, discharge plate and plasticizing mouth etc., multiple bases are connected in shell lower side, feed inlet is connected in shell left part upper side, discharge plate is rotatably connected in shell right upper portion, plasticizing mouth is clamped in shell right part upper side, and plasticizing mouth is contacted with discharge plate.The utility model pours waste rubber and softener into shell and is devulcanized or degraded, is heated by heating ring, is broken by extruding lever rotation, is filtered after flowing through filter screen, then is extruded into shape from plasticizing mouth, then is moved by push block, and the filter screen used is removed and is replaced by impurity, so that waste rubber can be treated and filtered, and extruded at the same time, convenient filter screen switching use and removal, convenient filter screen loading and unloading, cleaning and replacement, impurity cleaning is facilitated, cleaning efficiency is improved, and it is convenient to use.

The utility model relates to the technical field of crushing and grinding, specifically to a kind of crushing and grinding device for waste rubber tire recycling and processing, including the box of one end open one end closed, first through-hole is set up in the box, the first through-hole is set up in the box, two first sliding slots are set up, the screening assembly includes two sliding strips, sieve plate, extension plate, collection plate and two first limiting plates, extension plate slides, because sieve plate is fixed on sliding strip, make sieve plate slide along first sliding slot, by extension plate quick shaking, realize vibration, because sieve plate is inclined design, make unqualified rubber powder move to the other side, make rubber powder slowly from collection plate into secondary grinding, to unqualified rubber powder secondary grinding, solve the problem that filter is damaged due to serious blockage, prevent large rubber into subsequent production link, make final product appear more balanced, improve the quality and performance of product.

The application belongs to the technical field of non-metal waste and scrap processing, and particularly relates to a rubber recycling and regenerating particle preparation device, which comprises a machine body, a fixed motor fixed to one side of the machine body, a fixed frame arranged above the machine body, two groups of crushing assemblies rotatably arranged in the fixed frame, the crushing assembly comprising a crushing roller, the crushing roller being driven by the fixed motor to perform crushing work, a feeding port arranged on one side of the fixed frame, a plurality of auxiliary plates rotatably connected to one side of the fixed frame, the auxiliary plates corresponding to the feeding port, a partition plate fixed to the top wall of the fixed frame, the one side of the partition plate being arranged as a first cavity, the other side of the partition plate corresponding to the feeding port, a positioning frame fixed to one side of the fixed frame, and a pretreatment assembly arranged in the positioning frame, the pretreatment assembly comprising a discharging frame fixed to the upper surface of the positioning frame, and the hard substances such as stones in the waste rubber are solved by arranging the pretreatment assembly.

The application provides a method for preparing anti-permeation anticorrosive filler from waste rubber and anticorrosive paint, and belongs to the technical field of paint, which comprises the following steps: crushing and sieving waste rubber to obtain rubber particles, then sequentially performing acid pickling, alkali washing and water washing, and drying, then adding the rubber particles into tetrachloroethylene for chlorination, then removing flocculent products by using a blast rotary furnace, then adding the rubber particles into tetrachloroethylene again for chlorination and performing bubbling operation, and then draining to obtain the anti-permeation anticorrosive filler. The anti-permeation anticorrosive filler prepared by the method has improved chlorine content and enhanced corrosion resistance, the anticorrosive coating prepared by using the filler can effectively solve the diffusion problem of water molecules, can effectively inhibit the permeation and migration of corrosion medium chloride ions, and can greatly improve the anti-permeation performance.

The invention relates to the field of rubber softening and utilization, in particular to a waste rubber softening and utilizing device for rubber rings for semiconductors, which comprises a box body, two shaft tubes are horizontally and rotatably connected in the box body in parallel, a plurality of circular cutters are axially and uniformly arranged on the outer surfaces of the two shaft tubes, and the circular cutters on the two shaft tubes are in one-to-one contact and correspond to each other. A plurality of plate cutters are evenly arranged on the outer surfaces of the two shaft pipes in the circumferential direction, and when the two shaft pipes rotate relatively, the plate cutters make contact with and correspond to each other in sequence. A heating granulation mechanism is arranged at the lower end of the box body and is used for heating, softening and granulating crushed materials; according to the rubber ring cutting device, the problem that part of rubber is not effectively cut off due to slipping caused by uneven stress when a rubber ring is cut can be solved.

This invention discloses a long-life pavement material for extreme and complex conditions and its preparation method. Modified asphalt pavement material is prepared using ultra-deeply decrosslinked rubber as the main raw material (with a content greater than 50%). Through specific processes and formulations, this pavement material retains excellent self-healing properties even under extreme low-temperature conditions (< -10 °C), with a healing efficiency greater than 50%, and a healing efficiency greater than 30% after aging, resulting in a long service life. This invention not only solves the problem of easy cracking in asphalt pavements and significantly improves their service life, but also enables the high-value resource utilization of waste rubber, resulting in significant environmental and economic benefits.

The application discloses a recycling method of valuable metals in lithium ion batteries, and relates to the technical field of battery recycling. The application adopts waste rubber particles as fuel and reducing agent, mixes the waste rubber particles with lithium ion battery electrode powder to granulate, and then carries out one-time and two-time roasting pyrolysis, so that the gas generated by the waste rubber particles has high calorific value and strong reducibility, the ternary lithium battery electrode powder can be reduced into soluble lithium oxide, and the lithium metal can be recycled through water immersion, the metal recovery rate is high, the energy consumption is low, the resource recycling rate can be improved by using the waste rubber particles, and the method is economical and environment-friendly.

The invention discloses a chemical treatment method for refining waste rubber powder particles, and belongs to the technical field of solid waste resource utilization. According to the chemical treatment method disclosed by the invention, coarse rubber powder obtained by recycling waste rubber products is taken as a raw material, and refined rubber powder with uniform particle size is finally obtained through a multi-step chemical treatment process of raw material pretreatment, chemical crosslinking bond breakage, surface modification and ultrasonic-assisted cleaning and drying. According to the method, the problems of high energy consumption, non-uniform particle size and rubber powder performance degradation caused by excessive etching of a chemical method in a traditional physical grinding method are solved, the particle size of the prepared superfine rubber powder can be stably controlled to be 0.1-50 microns, and the method can be widely applied to the fields of rubber regeneration, asphalt modification and the like.