415 results about "Waste tires" patented technology

The invention relates to the field of modified asphalt mixtures, and provides an SBS / waste tire rubber powder composite modified asphalt mixture and a preparation method thereof. The SBS / waste tire rubber powder composite modified asphalt mixture comprises coarse aggregate, fine aggregate, mineral powder, an SBS modifier, modified waste tire rubber powder, a composite bio-based silane coupling agent and matrix asphalt, wherein the modified waste tire rubber powder is obtained through interface pre-modification; according to interface pre-modification, sulfur-sulfur cross-linking bonds in rubber powder are selectively broken through a regeneration activating agent; enabling the surface of the waste tire rubber powder to be self-assembled through an interface guiding agent to form a nano interface layer; the high-temperature stability, low-temperature crack resistance, water stability and aging resistance of the SBS / waste tire rubber powder composite modified asphalt provided by the invention are remarkably improved, and the SBS / waste tire rubber powder composite modified asphalt is green, environment-friendly and high in fatigue self-repairing capability.

The invention relates to the field of waste tire thermal cracking, and discloses a waste tire thermal cracking treatment device which comprises a heating cavity, mounting holes are formed in the two sides of the heating cavity, the interiors of the two mounting holes are jointly and rotationally connected with a thermal cracking cavity, and the interior of the thermal cracking cavity is fixedly connected with an annular filter screen plate. A circular hole is formed in one end of the thermal cracking cavity, a connecting pipe is fixedly connected to the interior of the circular hole, and a flapping mechanism is arranged at one end of the connecting pipe. According to the waste tire thermal cracking treatment device, the driving mechanism drives the thermal cracking cavity and the connecting pipe to rotate synchronously, and the stirring rods on the inner wall of the thermal cracking cavity can turn over tire materials, so that uniform heating is ensured; the connecting pipe drives the beating plate to continuously beat the annular filter screen plate, carbon black attached to the steel wires after pyrolysis is shaken off, the carbon black falls into the cavity bottom through the filter screen holes, the steel wires are intercepted by the filter screen, and separation of the carbon black and the steel wires is achieved.

The invention provides a light-weight automobile appearance decorating part added with recycled waste and a forming process of the light-weight automobile appearance decorating part, and belongs to the technical field of automobile part manufacturing. The preparation method comprises the following steps: mixing a core layer melt containing polypropylene recycled after consumption, waste tire rubber and a styrene-ethylene-butylene-styrene block copolymer with a supercritical fluid to form a uniform dispersion; after an acrylonitrile-styrene-acrylate copolymer surface membrane is formed in a mold cavity, injecting the uniform dispersion to drive the membrane to extend and fill; and gas is induced to generate heterogeneous nucleation on the surfaces of the waste tire rubber particles through pressure relief and grow into bubbles. On the premise that the surface glossiness is not degraded, light weight and high toughness of the appearance decorating part and efficient utilization of renewable resources are achieved.

The invention discloses nano-composite high-viscosity and high-stability modified asphalt and a preparation method thereof, and belongs to the technical field of road engineering materials. The modified asphalt is prepared from the following raw materials in parts by weight: 100 parts of matrix asphalt, 3 to 10 parts of star-shaped SBS (Styrene Butadiene Styrene), 5 to 25 parts of waste tire rubber powder, 2 to 6 parts of C5 / C9 petroleum resin, 2 to 8 parts of naphthenic oil, 0.1 to 0.5 part of sulfur, 1 to 3 parts of organic montmorillonite, and 0.5 to 2 parts of optional maleic anhydride grafted polypropylene and / or 0.1 to 0.5 part of silane coupling agent. The core of the preparation method is that through a three-stage process of swelling and nano dispersion, development and interface reaction and cross-linking stabilization, the technical problems of poor compatibility and easy segregation of an SBS / rubber powder composite system are fundamentally solved by utilizing the physical barrier effect of a nano sheet layer and the synergistic effect of vulcanization / interface chemical bonding. The obtained product has ultrahigh viscosity (dynamic viscosity gt at 60 DEG C, 80000 Pa.s), excellent storage stability (segregation error 1t at 48 hours, 2.0 DEG C) and excellent aging resistance, and the comprehensive performance of the product is far better than that of the prior art.

The invention relates to the technical field of solid waste resource utilization and building materials, in particular to magnesium slag-based aggregate and a preparation method thereof. According to the specific technical scheme, the industrial magnesium slag is ground into powder; performing surface activation and organic-inorganic hybrid coating modification on the waste tire rubber powder; grading and mixing the magnesium slag powder, the modified rubber powder and a chemical foaming agent to obtain a composite dry material; mixing and granulating the composite dry material and a special bio-based composite cementing solution; and finally, the raw material balls are placed in an alkaline carbon dioxide-rich atmosphere for low-temperature carbonization maintenance. The bio-based cementing solution is stably cured through mechanisms such as ionic crosslinking, mineralization induction and organic-inorganic network interpenetration. The obtained aggregate has a compact shell structure, the bulk density is 650-850 kg / m < 3 >, the cylinder compressive strength is 6-12 MPa, the water absorption rate is lower than 10%, the impact toughness is excellent, efficient synergistic utilization of various solid wastes is achieved, high-temperature sintering is not needed in the process, and low carbon and energy saving are achieved.

The present application relates to biomass compound modified waste tire rubber powder and its preparation method and application. The rubber activator is fully contacted with the waste tire rubber powder under the action of high-speed shearing and the surface of the waste tire rubber powder is activated, and the activated rubber powder is obtained after uniform stirring for a certain time; the biomass modifier is slowly added into the reaction container containing the activated rubber powder in the process of uniform stirring, and the mixed solution is obtained after uniform stirring; the catalyst is added into the mixed solution, and the product obtained by the reaction is centrifuged, washed, suction filtered and dried to obtain the biomass compound modified waste tire rubber powder. Compared with the prior art, the waste tire rubber powder is subjected to reactive surface modification by using the biomass compound as the surface modifier, the biomass modifier is loaded on the surface of the rubber powder through the chemical action between the hydroxyl groups in the molecular structure of the biomass compound and the oxygen-containing groups on the surface of the activated rubber powder, and the activated rubber powder is effectively modified.

The invention discloses a waste tire sorting and conveying system and a cracking produced gas recovery process thereof, the system comprises a tire classification module, a tire surface defect judgment unit, a repair priority processing module and a tire priority conveying module, and the tire classification module divides size according to tire diameter data and classifies materials in combination with cord thread magnetic attraction characteristics; the tire surface defect judgment unit analyzes and judges tire surface defect data by referring to the tire repair index database; the repair priority processing module constructs a multi-dimensional evaluation matrix to obtain a tire repair priority; and the tire priority conveying module scores, judges and distributes conveying queues according to the repair priority, so that the conversion from extensive recovery to refined classification and high-valued utilization of the waste tires is realized, the problems of low efficiency and high wrong classification rate of traditional manual sorting are solved, key support is provided for large-scale and intelligent operation of a waste tire circular economy industrial chain, and the economic benefit of the waste tires is improved. And the raw material quality and the treatment efficiency of a subsequent recycling process are ensured.

The application discloses a modification method of waste tire thermal cracking carbon black and the obtained carbon black. The method comprises the following steps: (1) high-temperature treatment of thermal cracking carbon black; (2) adding the thermal cracking carbon black after high-temperature treatment in step (1) into an acid solution, stirring to obtain an acid washing thermal cracking carbon black water suspension, and drying after water washing to obtain acid washing thermal cracking carbon black; and (3) mixing the acid washing thermal cracking carbon black obtained in step (2) with a silane coupling agent and performing heat treatment to obtain modified thermal cracking carbon black. The modification method reduces the ash content of the thermal cracking carbon black, enhances the surface activity of the thermal cracking carbon black, improves the reinforcing performance of the thermal cracking carbon black in rubber, increases the use amount of the thermal cracking carbon black, and makes the thermal cracking carbon black have a wider application.

The invention discloses a green and environment-friendly transition layer rubber material for a tire and a production process of the green and environment-friendly transition layer rubber material. The green and environment-friendly transition layer rubber material comprises the following raw materials: natural rubber, high-activity zinc oxide, a bio-based anti-aging agent RD, modified carbon black, N326 carbon black, bio-based bonding resin, sulfur and other auxiliaries. The production process comprises the following steps: 1) preparing modified carbon black; and 2) a third-stage internal mixing process. According to the invention, high-performance modified carbon black is firstly produced from waste tires, and then the high-performance modified carbon black is used as a part of filler to prepare the green and environment-friendly transition layer rubber material for tires; therefore, the scientific problems of poor reinforcing property and weak interface bonding of the recovered carbon black are solved, meanwhile, the quality of the filler is ensured through a multi-stage purification and activation process, finally, the performance breakthrough is realized on the molecular interface level, a green, circulating and sustainable production mode is realized on the process level, and the production cost is reduced. Therefore, the remarkable beneficial effects of high performance, high adhesion, high durability and low environmental load are comprehensively achieved.

This invention relates to the field of petroleum refining and chemical engineering, and discloses a method for hydrogenating waste tire pyrolysis oil. The method includes the following steps: (1) in the presence of hydrogen, the waste tire pyrolysis oil raw material undergoes a gas-phase desulfurization reaction in a first gas-phase hydrogenation reactor to obtain a gas-phase desulfurization reaction product; (2) the gas-phase desulfurization reaction product is subjected to gas-liquid separation to obtain a gas-phase component and a liquid-phase component; (3) the liquid-phase component is pressurized and mixed with hydrogen, and then subjected to a liquid-phase dearomatics reaction in a second hydrogenation reactor to obtain a liquid-phase dearomatics reaction product; the nitrogen content in the waste tire pyrolysis oil raw material is 3000-10000 μg / g. This method uses waste tire pyrolysis oil from the middle distillate as raw material, achieving deep desulfurization while reducing the removal of nitrogen oxides and monocyclic aromatic hydrocarbon saturation. It also simplifies the overall process flow, reduces the reaction severity, and lowers energy and hydrogen consumption.

Aspects of the invention are associated with the discovery of approaches for the conversion of carbonaceous feeds, such as biomass and biomass-containing solids via thermal treatment. Particular examples of biomass-containing solids are municipal solid waste (MSW), as well as waste plastics and waste tires. In some cases, this conversion, such as by pyrolysis, will allow for straightforward integration with gasification (e.g., entrained-flow gasification) or partial oxidation. Advantageously, processes and associated apparatuses / equipment described herein are tailored to the physical and chemical properties of the feeds. In this regard, important advantages reside in auger reactors that include electric heating elements within one or more auger shafts. Such centralized heating may be used in combination with external heating, for example also utilizing electric heaters. With centralized heating, the surface area available for heat transfer into the feedstock may be increased dramatically (e.g., by a factor of 3 to 5).

The invention relates to the technical field of building materials, in particular to an energy-saving and environment-friendly recycled concrete pipe pile and a preparation method thereof. The recycled concrete is prepared from the following raw materials in parts by weight: 35 to 45 parts of recycled aggregate, 22 to 28 parts of P.O42.5 Portland cement, 6 to 9 parts of magnesium phosphate cement composite admixture, 18 to 22 parts of river sand, 1.0 to 1.3 parts of hydroxylated graphene-chitosan-nano zinc oxide ternary composite modifier, 6 to 8 parts of modified waste tire rubber powder, 0.5 to 0.8 part of basalt fiber and the like. The rubber powder is soaked in a sodium hydroxide solution and then treated with a maleic anhydride grafted polyethylene solution; the metakaolin is prepared by calcining coal gangue; the ternary modifier is prepared by grafting, crosslinking and dispersing; the magnesium phosphate admixture contains light calcined magnesia, ammonium dihydrogen phosphate and borax. The tubular pile is excellent in mechanical and durable performance and high in solid waste utilization rate, carbon emission and production energy consumption are reduced, the cost is reduced, the problems that a traditional regenerated tubular pile is low in strength and poor in environmental protection performance are solved, the tubular pile is suitable for multiple engineering scenes, and economic and environmental benefits are remarkable.

The invention discloses a waste tire continuous thermal cracking feeding control method and system based on machine learning, and relates to the technical field of plastic waste recovery. The method comprises the following steps: acquiring a historical rear end socket temperature sequence and a historical internal pressure sequence of a cracker in a historical time window, and a rotation angular velocity and feeding rate sequence in a future preset time window; on the basis of the long and short-term memory network, predicting a predicted end socket temperature sequence and a predicted internal pressure sequence in a future window; with improvement of temperature, pressure and feeding rate stability as multiple targets, an adaptive feeding rate sequence is searched and output in a feeding rate adjustment space through digital twinborn simulation and an intelligent optimization algorithm in combination with the prediction sequence; and finally, carrying out feeding control on the cracker according to the sequence in a preset time window. According to the method, prospective optimization control over the cracking working condition is achieved, the hysteresis quality of traditional control is effectively overcome, and the stability, safety and automation level of the continuous thermal cracking process are improved.

The application discloses a high-viscosity recycled asphalt mortar based on oil-rich RAP fine materials and a preparation method thereof, and belongs to the technical field of highway engineering materials. The high-viscosity recycled asphalt mortar comprises the following components: oil-rich RAP fine materials, base asphalt, a high-viscosity modifier, a recycling agent and a dissolving agent. The high-viscosity modifier comprises the following components: waste tire rubber powder grafted with GMA (glycidyl methacrylate), BMI (bismaleimide), an adhesive, isooctanol polyoxyethylene ether and sulfur. The waste tire rubber powder grafted with GMA can improve the interfacial bonding strength of the oil-rich RAP fine materials and the base asphalt, thereby improving the water damage resistance of the recycled asphalt mixture. The BMI forms an interpenetrating structure (crosslinking network) among the rubber powder, the oil-rich RAP fine materials and the base asphalt, thereby improving the crack resistance of the recycled asphalt mixture.

The present application relates to the technical field of tire rubber recycling, and particularly relates to a method for evaluating the CO2 adsorption performance of a waste tire-based adsorbent, which uses waste tires as a raw material, combines the complex characteristics of waste tire components, and selectively uses an activation test. A two-step activation method of chemical activation and physical activation is used to prepare a waste tire-based adsorbent for adsorbing CO2, which has low cost, high adsorption capacity and good regeneration performance. Then, the highest limit of the waste tire-based adsorbent adsorbing CO2 under standard conditions (1 atm, 0 DEG C) is judged by the thermodynamic parameter Gibbs free energy. Meanwhile, the present application proposes a thermodynamic excellent index delta of the adsorbent adsorbing CO2, which is a thermodynamic index for evaluating the adsorption capacity of the waste tire-based adsorbent adsorbing CO2. The present application can effectively and accurately analyze the adsorption performance of the prepared tire-based adsorbent, so as to select the optimal production process and improve the production efficiency.

The utility model relates to the technical field of tire rubber powder desulfurization, and discloses a waste tire rubber powder normal-temperature desulfurization device which comprises a mixing box, an exhaust mechanism arranged at the top of the mixing box, a mixing mechanism arranged at the bottom of the exhaust mechanism, a sealing plug movably connected to the top of the mixing box, and a purification filter frame arranged on one side of the exhaust mechanism. The exhaust mechanism comprises an exhaust channel, the exhaust channel is fixedly connected to the top of the mixing box, the bottom of the exhaust channel is fixedly connected with a purification box, the right side of the purification box is fixedly connected with a rectangular frame, a rectangular plate is movably connected in the rectangular frame, the left side of the rectangular plate is fixedly connected with a sealing plate, and one side of the rectangular frame is provided with a rectangular block. According to the normal-temperature desulfurization device for the waste tire rubber powder, the exhaust mechanism is arranged, so that the purification filter frame is disassembled, overhauled and maintained conveniently in the long-time use process, good disassembly efficiency can be achieved, the time consumed in the disassembly and cleaning process is further shortened, and the practicability of the device is improved.

The utility model provides waste tire rubber breaking and sorting equipment, which belongs to the technical field of waste tire treatment, and comprises a sorting device, the sorting device comprises a first sorting piece, a second sorting piece, a third sorting piece and a fourth sorting piece, the second sorting piece comprises a cylindrical second screen mesh and second connecting parts connected to the two ends of the second screen mesh; the second connecting part located at the feeding end of the second sorting piece is fixedly connected with the first connecting part located at the discharging end of the first sorting piece. The mesh diameter of the second screen is larger than that of the first screen; and the transmission part drives the first sorting part and the second sorting part to coaxially rotate. The waste tire rubber crusher solves the technical problem that particles with different particle sizes cannot be effectively graded after waste tires are crushed into particles by the existing tire rubber crusher, and has the characteristic of being capable of efficiently grading according to the sizes of rubber particles.

The utility model discloses a pyrolyzing furnace for waste tire treatment, which comprises a combustion tank, a rolling crushing mechanism, an anti-overloading mechanism and a support adjusting mechanism, the rolling crushing mechanism comprises a rolling motor, an output shaft, a rotating shaft, a rotating block, a leak hole plate and a rolling shaft, the anti-overloading mechanism comprises an anti-overloading pipe, an anti-overloading rod, a stretching-in frame, a stretching-in groove, a moving groove, a moving block, a supporting spring and a sliding rod, and the supporting adjusting mechanism comprises a sliding sleeve, a threaded plate, a supporting plate, a lead screw, rotating teeth and an outer tooth ring. Meanwhile, uniform distribution of materials is achieved, the pyrolysis efficiency is improved, in the operation process of the device, part damage caused by overload or abnormal conditions can be effectively prevented, the stability and safety of equipment operation are improved through linkage protection design, a supporting adjusting mechanism can adjust the pre-tightening force of a supporting spring according to needs, and the safety of equipment operation is improved. Therefore, different working environments and load requirements can be met.

The invention discloses an aramid fiber reinforced concrete material for a light sound barrier plate and a preparation method of the aramid fiber reinforced concrete material, and relates to the field of light building materials, and the aramid fiber reinforced concrete material is prepared from cement, fly ash, silica fume, quartz sand, light ceramsite, rubber fine sand, a water reducer, a fiber plasticizer, water and modified aramid fiber. The waste tire rubber powder is heated by using the aqueous alkali to prepare the fine rubber sand, so that exploitation of natural sand can be reduced, and energy conservation and emission reduction are realized. The interface bonding force between the modified aramid fiber and cement and other raw materials is enhanced, the acid and alkali resistance is high, the tensile strength of the concrete material can be improved, and the durability of the concrete performance under complex conditions is guaranteed.

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.

This invention relates to a stable and durable high-content waste tire rubber powder modified asphalt, its mixture, and a preparation method. The raw materials, by weight percentage, are: 100 parts base asphalt; 40-50 parts waste tire rubber powder; 5-7 parts viscosity reducer; 0.1-0.8 parts crosslinking agent; and 1-2 parts reinforcing agent. The crosslinking agent is ABS, and the viscosity reducer is at least one selected from naphthenic rubber oil, alkane rubber oil, aromatic rubber oil, and polycyclic aromatic rubber oil. In the mixture, 40-mesh and 200-mesh waste tire rubber powder are added. The combination of rubber powder with different particle sizes replaces aggregate and filler in equal amounts, and forms a combination with some incompletely swollen rubber powder in the modified asphalt, achieving stable gradation. This high-content waste tire rubber powder modified asphalt not only significantly increases the waste tire rubber powder content but also exhibits good product stability and can be stored for a longer period. The stability and durability of its modified asphalt mixture are significantly improved, further enhancing the road performance of rubber asphalt and extending the service life of the pavement.

This utility model relates to the field of cement production technology, and in particular to a cement kiln that uses waste tires as fuel for cement clinker calcination. It includes a base, with the main body of the cement kiln fixedly installed on the top of the base. A burner is fixedly installed on the right side of the base, and a feeding cylinder is fixedly installed on the top of the burner. A drive motor is fixedly connected to the top of the feeding cylinder, and the output end of the drive motor passes through the inner cavity of the feeding cylinder and is fixedly connected to a crushing shaft. This utility model can treat exhaust gas. During use, the exhaust pipe guides the exhaust gas, and during this guidance, the water in the recovery box recovers and treats the exhaust gas. Simultaneously, the exhaust gas is introduced into the treatment box, allowing the filter plate, filling box, and adsorption packing material to treat the exhaust gas. Furthermore, during use, the feeding cylinder, drive motor, crushing shaft, and spiral shaft guide tire material into the burner, enabling the use of waste tires as fuel.

The invention relates to the technical field of building waterproof materials, in particular to a modified asphalt waterproof coiled material and a preparation method thereof. The invention provides a modified asphalt waterproof coiled material. The modified asphalt waterproof coiled material comprises an anti-aging layer; the bonding layer is formed on the anti-aging layer; the anti-aging layer comprises a polyester base; the cross-linked modified asphalt coating is formed on the outer surface of the polyester base; the bonding layer is a non-crosslinking modified asphalt coating; the cross-linked modified asphalt coating is prepared from the following raw materials: 70 # asphalt, 200 # asphalt, SBS (Styrene Butadiene Styrene), waste tire powder, stone powder and a cross-linking agent; the non-crosslinking modified asphalt coating is prepared from the following raw materials: 70 # asphalt, 200 # asphalt, SBS (Styrene Butadiene Styrene), waste tire powder and stone powder. The modified asphalt waterproof coiled material provided by the invention can be quickly crosslinked, and has excellent bonding and peeling strength and thermal aging performance.

The present invention provides a process for preparing a non-destructive grille from waste tires, which relates to the technical field of solid waste treatment. Aiming at the problem that the existing grilles produced using waste tires have insufficient strength at the connection positions of intersections, the waste tires are cut to obtain tire strips, which are arranged in a manner where warps and wefts intersect, and fasteners are provided at the intersections for fixation. The fasteners are locked in position by ultrasonic welding, and connecting pieces are used to compensate for dimensional changes during the welding process, thereby ensuring the fit and locking ability of the fasteners to the intersections of the tire strips, and thus ensuring the strength and performance of the formed grille.

The invention relates to the field of construction materials, in particular to a backfill material composed of mixed industrial waste applied to a low load level, the backfill material composed of the mixed industrial waste applied to the low load level comprises broken tempered glass, old plastic and waste tire rubber particles according to the volume ratio of 6: (1-1.5): (2.5-3), the water content of the backfill material is 0.7-1.2%, and the water content of the backfill material is 0.5-1.5%. And when the backfill material is dumped to the backfill area, the ground clearance of the backfill material is 1.5-2m. The backfill material composed of the mixed industrial waste materials applied to the low load level is composed of pure waste materials, the waste materials meet environmental safety, the backfill material only needs to be directly poured into a backfill area at a certain height during use, the compaction degree can be larger than 90% without being compacted, the vertical strain of a formed backfill body under the load of 6 kPa is smaller than 0.42%, and the vertical strain of the backfill body under the load of 6 kPa is smaller than 0.42%. And the method can be applied to low-load-level engineering parts such as municipal pipe gallery backfilling and park greenway lower cushion layers.

The utility model relates to the technical field of waste tire oil refining, in particular to an oil collection pressure balance tank which comprises a tank body and a buffer diaphragm, the buffer diaphragm divides the tank body into an upper gas cavity and a lower liquid cavity, and a cleaning assembly is arranged in the liquid cavity and comprises a driving motor. A rotating shaft penetrating through the side wall of the tank body is arranged at the output end of the driving motor, fixed plates are fixedly connected to the two sides of the rotating shaft, cavities are formed in the fixed plates, movable plates are slidably connected into the cavities, wall scraping plates are arranged at the ends of the movable plates, and a cleaning liquid feeding pipe is arranged on one side of the tank body. Cleaning liquid can be added into the tank body through the cleaning liquid input pipe, the wall scraping plate can evenly distribute and smear the cleaning liquid on the tank wall when rotating, the cleaning effect is further enhanced, it is ensured that the interior of the tank body is always kept in a clean state, the oil collection efficiency and quality are remarkably improved, and the practicability and reliability of the pressure balance tank are enhanced.

The application relates to the technical field of waste tire treatment, and discloses a waste tire recycling treatment equipment, which comprises a fixed base, a disc for placing waste tires is rotationally arranged on the fixed base, a positioning frame capable of ascending and descending is arranged above the disc, a cutting knife for cutting the waste tires is rotationally arranged on the outer side of the positioning frame; a positioning block is fixed to the outer surface of the disc, a rotating shaft is rotationally arranged on the positioning block, a rotating plate is fixed to the circumference of the rotating shaft, an elastic movable rod is arranged in the disc, a spherical ball is fixed to the end of the movable rod, and a fixed disc is arranged in the disc. When the waste tires are cut, the rotating plate is rotated, the side ring can be lifted outward, the side ring at the cutting position can be kept at a certain angle with the tread, the cutting is facilitated, and the side ring and the tread can be separated more sufficiently.

The utility model relates to the technical field of separation treatment, especially to a waste and old tire steel wire separation equipment, including the separation machine main part, be provided with two extruding rollers that are used for crushing the tire waste on the steel wire surface on the separation machine main part and the guide seat that is located extruding roller top, be equipped with the scraper assembly that is used for stripping the broken tire waste simultaneously when extruding roller extruding the tire waste on the steel wire on the guide seat, the scraper assembly includes two stripping scrapers that blade surface opposite settings, wherein one stripping scraper is connected with the inner wall of guide seat, the utility model discloses setting scraper assembly on the guide seat, two extruding rollers extrude the tire waste, and the tire waste is driven to rotate by the extruding roller, and the stripping scraper of two blade surface opposite settings simultaneously scrapes the already crushed tire waste, and manual stripping of steel wire is not needed, which reduces the labor intensity of operating personnel and improves work efficiency.

The present application relates to coal gangue treatment technical field, provide a kind of coal gangue-containing biofuel particle and its preparation method and application.The biofuel particle provided by the present application includes: coal gangue powder 60~62%;14~15% of oil-stained mixture;High molecular waste powder 24~26%;The oil-stained mixture is waste engine oil and / or oil-stained material;The oil-stained material is obtained by crushing and drying in turn from swill.The oil-stained mixture used in the present application is rich in oil and fat, with high volatile matter, easy to ignite, coal gangue and waste tires and / or waste plastic bottles have high fixed carbon content, long burning time, so that the biofuel particle of the present application has high calorific value, stable combustion, can be used as alternative fuel to alleviate the problem of traditional fossil fuel shortage.The present application uses catering leftovers swill, waste tires and / or waste plastic bottles and coal gangue powder, to prepare biofuel particles, which solves the various hazards caused by long-term storage of coal gangue.

The invention relates to a method for catalytically pyrolyzing waste tires by utilizing modified sintering ash, which comprises the following steps of: performing high-temperature heat treatment modification on the sintering ash, and performing pyrolytic reaction on the modified sintering ash and the waste tires in a reaction furnace to obtain a pyrolytic oil liquid-phase product rich in monocyclic aromatic hydrocarbon and limonene. According to the invention, the modified sintering ash is used as a catalyst, so that the yield of pyrolytic oil in the pyrolysis process of the waste tire is increased, and the content of monocyclic aromatic hydrocarbon or limonene in the pyrolytic oil is increased. In addition, Fe and Zn metals are recovered through the rotary hearth furnace. The invention provides an efficient treatment and utilization mode of the sintering ash, meanwhile, the composition of the waste tire pyrolytic oil can be effectively improved, metal resources can be recycled, good environmental benefits and economic benefits can be generated, corresponding environmental problems can be solved, and considerable economic benefits can also be brought.