717 results about "Crumb rubber" patented technology

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention discloses sound-insulation and heat-insulation building mortar and a preparation method thereof, and relates to the technical field of building materials, the sound-insulation and heat-insulation building mortar comprises, by weight, 42-48 parts of a cementing material, 15-25 parts of an auxiliary material, 17-22 parts of lightweight aggregate, 30-35 parts of a functional filler, and 1-2 parts of an additive; the cementing material is a mixture of sulphoaluminate cement and Portland cement; the auxiliary material is a mixture of fly ash and quartz sand, the lightweight aggregate is a mixture of 20-40-mesh hollow vitrified microbeads and 70-90-mesh hollow vitrified microbeads, and the mass ratio of the hollow vitrified microbeads to the hollow vitrified microbeads is 1: (2-3); the functional filler is a mixture of modified waste rubber particles and modified fibers; the additive is a mixture of a polycarboxylate superplasticizer and hydroxypropyl methyl cellulose ether. The mortar disclosed by the invention is good in thermal insulation performance and excellent in mechanical property, the method disclosed by the invention is simple to operate and low in cost, and the prepared mortar is excellent in performance.

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of a high-performance rubber concrete material, which comprises the following steps: (1) carrying out ultrasonic treatment on rubber powder, rubber particles, water and tetraethoxysilane, adding a silane coupling agent, continuously carrying out ultrasonic treatment for 30 minutes, drying and sieving to obtain modified rubber powder and modified rubber particles; (2) uniformly mixing calcium fluosilicate, aluminum oxide and magnesium oxide, calcining at high temperature, adding blast furnace slag and silicon powder, and grinding and activating under pressure to obtain a reinforcing agent; and (3) uniformly mixing cement, fly ash and gypsum, adding water, stirring to obtain slurry, adding the modified rubber powder, the modified rubber particles and the reinforcing agent, then adding the functional additive, the short glass fiber and the medium sand, and uniformly mixing to obtain the rubber concrete. The compressive strength of the prepared rubber concrete is 42 MPa or above, the tensile strength ranges from 3.0 MPa to 4.0 MPa, the breaking strength ranges from 5.0 MPa to 6.0 MPa, and application requirements are met.

The invention provides a leakage point pressure difference response high-strength blocking agent based on iron ion dynamic cross-linked latex and a preparation method thereof, and the raw materials comprise the following components in parts: 60-120 parts of latex, 60-120 parts of deionized water, 5-15 parts of an activator, 5-10 parts of a defoamer, 100 parts of a terminator, 100 parts of a stabilizer, 10 parts of a 20% ferric chloride solution, and the balance of water. Rubber particles are dynamically crosslinked through ferric ions, and the plugging strength is remarkably improved. Compared with a traditional differential pressure plugging agent, the plugging strength for small holes with the diameter of 0.5 mm reaches 35.67 MPa and is improved by about 238%, and the plugging strength for large holes with the diameter of 1 mm reaches 9.68 MPa and is improved by about 428%. And the plugging device is suitable for plugging conditions with higher leakage point pressure difference. In addition, the plugging agent can realize rapid and high-strength plugging of an underground pipe column, and provides a more efficient and more reliable solution for well site construction.

The invention discloses a rubber modified asphalt product and a preparation method thereof. The rubber modified asphalt product comprises the following raw materials in parts by weight: 55-60 parts of base asphalt, 15-20 parts of rubber particles, 12-14 parts of a hybrid-based modified filler, 8-11 parts of aromatic oil, 5-8 parts of an additive, 2-3 parts of microcrystalline wax, 2-3 parts of a silane coupling agent and 2-4 parts of an antioxidant. According to the rubber modified asphalt product disclosed by the invention, the base asphalt is matched with the rubber particles, the aromatic oil, the microcrystalline wax, the silane coupling agent and the antioxidant to serve as functional aids, and meanwhile, the hybrid-based modified filler and the additive are added to serve as synergists, so that the base asphalt and the additive are coordinated to achieve a synergistic effect and jointly achieve a synergistic effect; the obtained modified asphalt product has harmonious improvement on elastic recovery, track dynamic stability and bending strain, and also has remarkable water resistance, ultraviolet resistance and cold and heat resistance stability effects.

The invention discloses an anti-skid and noise-reduction multifunctional road hot melt coating and a gradient forming process thereof, and relates to the technical field of hot melt coatings. Comprising the following components in percentage by mass: 25-28wt% of bio-based resin, 8-12wt% of a noise reduction material, 15-20wt% of nano composite rubber particles and 5-8wt% of internally mixed reflective glass beads. The bio-based resin is used as a base material of the hot melt coating, the superfine bamboo fibers and the polyurethane elastomer are combined to serve as noise reduction materials, and honeycomb-shaped pores with the diameter of 0.1-1 micron exist in the superfine bamboo fibers, so that a coating produced by construction of the hot melt coating has good noise reduction performance; meanwhile, coarse-grade glass beads and fine-grade glass beads are introduced into the material, the coarse-grade glass beads provide basic light reflection, gaps are filled with the fine-grade glass beads to form a compact reflection layer, the coarse-grade glass beads and the fine-grade glass beads synergistically act to enable incident light to generate a composite effect of diffuse reflection and specular reflection, the retroreflection coefficient of the coating is increased by utilizing the effect, the light reflection performance in rainy days is further improved, and the safety is improved; and the hot-melt coating mostly adopts an environment-friendly material, is easy to degrade and is beneficial to environment protection.

The invention discloses a waste rubber sealing element recovery treatment all-in-one machine, and relates to the technical field of waste recovery, the waste rubber sealing element recovery treatment all-in-one machine comprises a treatment box, the outer wall of the front side of the treatment box is fixedly connected with a feeding hopper, the inner wall of the treatment box is fixedly connected with a sieve plate, and the outer wall of the front side of the treatment box is provided with a discharge port corresponding to the sieve plate. When the rubber sealing element is processed, the first driving motor drives the roller to rotate, rubber particles are screened through the screen holes, the particles meeting the size are thrown out, the particles which do not meet the standard are taken back through the blocking plate to be smashed again, the particle size uniformity is ensured, meanwhile, the knocking block is matched with the triggering rod, the sealing element accurately falls onto the smashing roller, deviation is avoided, and the screen holes are prevented from being blocked. And in addition, an inner gear ring and a third gear synchronously drive a rotating rod to rotate, a power-on guide column is matched with a magnetic attraction ring, the magnetic attraction ring moves in a reciprocating mode to attract metal impurities, the impurities fly into a magnetic collecting barrel after power failure, and the impurity removal efficiency and the rubber recovery purity and quality are improved.

According to the caisson wharf and the construction method thereof, a layered structure of a steel slag-rubber particle composite lower layer and a regenerated resin-basalt fiber composite upper layer is adopted for a base, and interface bonding is enhanced in combination with a silane coupling agent; the foundation bed is assembled by precast concrete modules and is poured by nano mortar; the caisson main body is provided with a positioning plate which is inserted into the guide groove, the caisson main body is filled with multi-graded steel slag fragments, and an independent airbag cavity is pre-buried in a bottom plate; the buoyancy control system dynamically adjusts the water injection rate based on multi-sensor data; the ecological permeable pipeline network adopts a diatomite-zeolite coating; the prestressed steel strand towing system is regulated and controlled in real time through the friction damper. The caisson wharf and the construction method thereof have the remarkable advantages in the aspects of structural stability, ecological friendliness, construction efficiency, intelligence and automation, the problems existing in a traditional caisson wharf can be effectively solved, and the requirements of modern port construction are met.

The invention relates to the field of concrete, and particularly discloses anti-crack concrete and a preparation method thereof. The anti-crack concrete is prepared from the following raw material components in parts by weight: 400 parts of cement; 1000 to 1100 parts of coarse aggregate; 730 to 800 parts of fine aggregate; 40 to 50 parts of modified rubber particles; 20 to 25 parts of basalt fiber; 5-6 parts of a water reducing agent; 1.3 to 1.5 parts of SAP resin; 0.015 to 0.02 part of an air entraining agent; 130 to 140 parts of water; a modifier used for preparing the modified rubber particles is sodium hydroxide and a silane coupling agent. The anti-crack concrete disclosed by the invention has good anti-crack capability, the total cracking area does not exceed 35mm < 2 > / m < 2 >, and the 28d compressive strength is not lower than 40MPa.

The invention discloses a method for preparing nano-scale carbon black from waste rubber and waste tires, which belongs to the technical field of comprehensive utilization of solid waste resources, and comprises the following steps: (1) crushing waste rubber and / or waste tires into rubber particles with the particle size of not less than 100 meshes; (2) stirring and mixing the rubber particles and an acid solution to form pickled rubber particles; (3) mixing the pickled rubber particles with an alkali solution, removing moisture, and then cracking under the protection of nitrogen to obtain carbon black particles; (4) mixing and activating the carbon black particles and a hydrogen peroxide solution to obtain activated carbon black particles; and (5) carrying out superfine grinding on the activated carbon black particles through high-pressure gas grinding to obtain the nano-scale carbon black. The obtained nano-scale carbon black is uniform in particle size and good in dispersity, and meanwhile resource utilization of waste rubber and / or waste tires is achieved.

The invention relates to a process for devulcanizing a vulcanized rubber mixture, comprising the following steps: A) providing or producing a vulcanized rubber mixture, B) comminuting the vulcanized rubber mixture to a granular material composed of vulcanized rubber particles, where the vulcanized rubber particles have a maximum particle diameter of 100 mm, C) extruding the vulcanized rubber particles produced in step B) in a twin-screw extruder at a shear rate of less than 100 s−1, where the temperature of the vulcanized rubber particles during extrusion is less than 200° C., to give a devulcanized rubber mixture having a temperature above 100° C., D) cooling the devulcanized rubber mixture in a further kneading unit, so as to give a devulcanized rubber mixture having a temperature in the range from 50° C. to 100° C. The invention further relates to an apparatus for performing the process and to the use of the apparatus for devulcanization of a vulcanized rubber mixture.

The invention relates to the technical field of sewage multi-stage treatment, and discloses washing sewage pretreatment equipment for rubber roller production, the washing sewage pretreatment equipment comprises an oil separation tank, a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the oil separation tank, and a filter screen is fixed in the water inlet pipe; the cleaning assembly is arranged on the water inlet pipe and comprises a flushing part, the flushing part comprises a water injection pipe, the water injection pipe is fixed to the top of the water inlet pipe, a water storage tank is fixed to the top end of the water injection pipe, a pressing plate is arranged in the water storage tank, a first spring is fixed to the top of the pressing plate, and a supporting frame is fixed to the top of the water storage tank. The oil separation tank has the beneficial effects that sewage entering the oil separation tank can be further filtered through the arrangement of the filter screen, so that the situation that rubber particles and other solid impurities enter the oil separation tank is avoided, and when the filter screen is blocked, the filter screen can be automatically backwashed through the cleaning assembly, so that the oil separation tank is convenient to clean. Therefore, the normal flowing of the sewage into the oil separation tank is not influenced.

The invention relates to the technical field of rubber pelletizing, and particularly discloses a pelletizer for rubber processing, which comprises a rack, a hobbing cutter I, a hobbing cutter II and a spreading mechanism, the spreading mechanism comprises a material distribution roller, a material distribution part and a material supply part, the material distribution roller is rotatably arranged on the rack, and a plurality of partition plates are uniformly arranged on the peripheral side of the material distribution roller along the circumferential direction; a material containing cavity used for containing talcum powder is formed between any two adjacent partition plates, the outer sides of the partition plates can be tangent to the periphery of the second hobbing cutter, the material distributing roller and the second hobbing cutter synchronously and reversely rotate, the material distributing piece comprises a plurality of material distributing plates and a first driving structure, and each material distributing plate slides in the radial direction of the material distributing roller and is located in the corresponding material containing cavity. The material supply part is used for conveying talcum powder into each material containing cavity in the rotating process of the material distribution roller; by means of rotation of the material distribution roller and radial sliding of the material distribution piece, talcum powder covers the surfaces of cut rubber particles to form an isolation layer, and the adjacent particles are effectively prevented from adhering to one another.

The utility model discloses a shearing device for production of desulfurized waste rubber, which is applied to the field of rubber production and comprises a shell, a feeding port is arranged on the shell, a circulating mechanism and a shearing mechanism are arranged in the shell, and the shell, the feeding port, the circulating mechanism and the shearing mechanism are arranged in the shell. Firstly, waste rubber can be conveyed into the shell through the feeding port and then is sheared through the shearing mechanism, and at the moment, the waste rubber which is not sheared in place is lifted upwards through the circulating mechanism, so that the waste rubber which is not sheared in place is sheared again by the shearing mechanism until all the waste rubber is sheared in place; the uniformity of the sheared rubber particles is ensured, and the influence on the subsequent processing quality is avoided.

The invention discloses an instrument and a method for detecting the equivalent elasticity of rubber particles of a synthetic material playground surface layer, and solves the problem of lack of an instrument and a method for detecting the elasticity of the rubber particles of the synthetic material surface layer paved on the playground. The relative height of standard rubber particles with specific high polymer content, specific particle size and specific mass after pre-pressing in a container is taken as a reference, and is compared with the rebound value of the rubber particles to be tested under the same test condition, so that the equivalent elasticity of the rubber particles to be tested is obtained.

The application discloses a kind of solution polybutadiene rubber particle conveying devices, it is related to conveying technical field, including belt conveyor, and belt conveyor is provided with distributing device and discharging device, and discharging device is located above distributing device, discharging device can quantitatively release rubber particles, and the discharge port of discharging device is provided with multilayer mouth structure, and the outside of multilayer mouth structure is connected with multidirectional traction structure, the present application is quantitatively filled with rubber particles by discharging device and releases, and the released rubber particles are layered and buffered by multilayer mouth structure Release, avoid the direct impact of rubber particles on belt conveyor, resulting in ejection to outside, reduce the waste of rubber particles, and the width of internal communication of multilayer mouth structure is expanded by multidirectional traction structure traction, so that the width of internal communication of multilayer mouth structure is larger, so as to avoid the blockage of rubber particles on discharging device and multilayer mouth structure.

The invention provides a multi-source dynamic disturbance rockburst combined support prevention and control system and method, and relates to the technical field of rockburst disaster prevention and control, the system comprises stress release holes, wave-absorbing grouting holes, energy-absorbing anchor rods and a passive pressure-bearing structure; the stress release holes are formed in a rockburst high-risk area of the tunnel surrounding rock; the wave-absorbing grouting holes are distributed around the rockburst high-risk area in a staggered mode, the wave-absorbing grouting holes are filled with wave-absorbing grouting materials, and a three-dimensional wave-absorbing grouting area is formed; the energy-absorbing anchor rod is arranged in the three-dimensional wave-absorbing grouting area; the passive pressure-bearing structure comprises a quick-setting concrete layer, a concrete layer containing rubber particles, a steel arch and a steel fiber concrete layer, the concrete layer containing rubber particles is arranged behind the reinforcing mesh, the steel arch is arranged behind the concrete layer containing rubber particles, and steel fiber concrete is arranged behind the steel arch. By constructing the pressure relief-wave absorption-energy absorption-passive pressure bearing four-stage combined supporting system, the safety and adaptability of the supporting system for the rockburst high-risk area are remarkably improved.

A ceiling hanger for reducing transmission of vibrations between ceilings and equipment. The ceiling hanger includes a housing and one or more crumb rubber isolators. The housing includes a first surface, a second surface and one or more side walls connecting the first and second surface. The one or more crumb rubber isolators have through holes for receiving a fastener.

1. A method and reactor assembly for producing hydrocarbon oils by pyrolysis from a first plastic feedstock, comprising: optionally combining the plastic feedstock with a second feedstock selected from the group consisting of a hydrocarbon-containing feedstock selected from crumb rubber and wood chunks, the second feedstock constituting more than 15% by weight of the combined feedstocks; adding a catalyst to the combined feedstocks to form a reaction composition; feeding the reaction composition through an airlock valve (7) to an auger pyrolysis reactor comprising at least two auger reactors (1a, 1b) heated to a temperature in the range of 450-550°C; distributing oil vapors and non-condensable vapors from the auger reactors (1a, 1b) to a condenser; and condensing heavy and light oil fractions from the vapors in two stages.

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.

An engineered cementitious composite (ECC) that forms extremely durable concrete (EDC) is provide that includes Portland cement binder, a tire-derived rubber granular component (e.g., crumb rubber), a calcined clay component comprising a calcined clay, Portland cement component, and limestone, water, a superplasticizer, a polymeric or natural fiber, and optionally further including silica sand, microsilica, fly ash, a cellulose-based viscosity modifier, microsilica, or combinations thereof. Such an engineered cementitious composite has a tensile strain capacity of greater than or equal to about 3% and an ultimate tensile strength of greater than or equal to about 2.2 MPa. Such an ECC has high toughness and can be loaded in both tension and compression having a built-in capability of crack width control without the need for steel reinforcement.

The invention provides a bridge anti-disturbance concrete material and a preparation method thereof, and belongs to the technical field of building materials, the bridge anti-disturbance concrete material comprises a gel material, a reinforcing material and a functional additive; the reinforcing material comprises fibers, modified styrene butadiene rubber particles and self-repairing capsules; the self-repairing capsule comprises a water phase and an oil phase, the water phase contains nano calcium oxide, and the oil phase contains an HDI-ethylenediamine copolymer. The invention provides a bridge anti-disturbance concrete material and a preparation method thereof. The adaptability of concrete to high-frequency vibration and extremely low-temperature environments is improved.

The utility model discloses an anti-winding wire cable, which comprises a cable body and further comprises an outer sheath arranged on the outer side of the cable body, anti-winding strips which are distributed in an annular array around the circle center of the outer sheath are fixedly arranged on the periphery of the outer sheath, and the cable body comprises a cable core and an inner sheath arranged on the periphery of the cable core. The inner sheath is filled with an insulating filler located between the cable cores, the anti-winding strip comprises a rubber sleeve attached and fixed to the periphery of the outer sheath and further comprises a fire extinguishing dry powder bag arranged in the rubber sleeve, and the rubber sleeve is filled with flame-retardant rubber particles located on the outer side of the fire extinguishing dry powder bag. According to the utility model, gaps exist between adjacent cables under the action of the winding strips, the cable laying can be guided, the cables are effectively prevented from being mutually wound during laying, and a better fire extinguishing effect is achieved.

The present application provides a bridge deck paving material, a preparation method thereof and a paving method thereof. The bridge deck paving material includes: a first additive, a second additive, a filler and a modified asphalt; the mass ratio of the filler to the modified asphalt is (15-45):(36-90); the first additive is a carbonized porous polymer, the content of the first additive in the total mass is X, the content of the second additive in the total mass is Y, and X and Y satisfy the following relational expressions: 1.2X ≤ X + Y ≤ 5X; 1.4Y ≤ X + Y ≤ 3Y; a paving method in which the content of the heat-conducting fiber powder in the paving material from the lowest paving layer to the topmost paving layer is controlled to decrease successively, and the content of the rubber particles and the polymer material in the paving material from the lowest paving layer to the topmost paving layer is controlled to increase successively; the bridge deck paving material and the paving method provided by the present application have high water stability, high-temperature stability and low-temperature crack resistance.

The invention relates to the technical field of rubber waste recovery, in particular to waste recovery equipment for rubber product processing, which comprises a base and an upper gland, a sliding strip is integrally formed at the bottom of the upper gland, a sliding groove I is formed in the side wall of the base, and the sliding strip is slidably mounted in the sliding groove I; a first spring is arranged between the bottom of the sliding strip and the bottom of the first sliding groove, a limiting ring is integrally formed on the side wall of the base, and the sliding strip is installed in the limiting ring in a sliding mode. By reducing the distance between the first cutter ring and the second cutter ring, the crushing effect on rubber waste is improved, particles obtained after the rubber waste is crushed are refined, rubber particles between the first cutter ring and the second cutter ring can be effectively cleaned through resetting of the first protective ring sleeve and the second protective ring sleeve, and the rubber waste can be effectively crushed. And the eccentric frame drives the crushing roller to rotate and drives the base to vibrate, so that the rubber waste crushing efficiency can be effectively improved, and the cleaning effect on rubber particles between the first cutter ring and the second cutter ring is improved.

The invention discloses a rubber particle preparation method based on recycled tennis balls, an environment-friendly runway construction method and an environment-friendly runway, and belongs to the field of runway construction.The method comprises the following steps that Sa1, the recycled tennis balls with impurities removed are put into a smashing machine at a constant speed, and surface felt and a rubber inner core are smashed and separated through the smashing machine; sa2, disinfection and washing are carried out; sa3, separating the fibers from the rubber particles; sa4, naturally air-drying the fibers and the rubber particles; sa5, classifying and screening; and Sa6, classifying, sealing and storing. By the adoption of the rubber particle preparation method based on the recycled tennis balls, the environment-friendly runway construction method and the environment-friendly runway, vulcanized rubber resources in the waste tennis balls can be efficiently recycled, meanwhile, high-valued application of the resources is achieved through the following environment-friendly runway construction steps, and a complete technical closed loop of recycling, preparation and application is formed.

The invention discloses phase-change self-temperature-regulating rubber powder modified asphalt and a preparation method thereof, and belongs to the field of asphalt pavement materials, the phase-change self-temperature-regulating rubber powder modified asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 1-5 parts of polyethylene glycol, 5-20 parts of rubber powder and an isocyanate-based compound, the matrix asphalt is heated to a molten state, a polyethylene glycol-rubber powder compound is added, mechanical stirring and mixing are performed, and the phase-change self-temperature-regulating rubber powder modified asphalt is obtained. Then putting the mixture into a drying oven for swelling, and finally performing high-speed shearing to obtain the phase-change self-temperature-regulating rubber powder modified asphalt. The isocyanate group in the isocyanate group compound reacts with the chain end of PEG and the hydroxyl group on the surface of CR, and CR and PEG are compounded through a chemical reaction, so that not only is the high-temperature performance of the phase change modified asphalt improved, but also the harm caused by PEG phase change leakage can be relieved, and the pavement quality and the high-temperature pavement performance can be improved.

The invention relates to the field of environment-friendly building materials, and particularly discloses a construction waste regenerated insulating brick and a preparation method thereof. The construction waste regenerated insulating brick is prepared from the following raw material components in parts by mass: 80 to 95 parts of construction waste regenerated filler, 60 to 65 parts of composite insulating carbon fiber material, 15 to 35 parts of waste ceramic aggregate, 5 to 10 parts of mica modified rubber particles, 5 to 30 parts of binder and 30 to 40 parts of water. According to the invention, the composite thermal insulation carbon fiber material is used as a skeleton, and the construction waste regenerated filler, the waste ceramic aggregate and the mica modified rubber particles are used as filling materials to fill the skeleton, so that the regenerated thermal insulation brick which has thermal insulation performance and can guarantee mechanical properties is prepared. The problems that in the prior art, construction waste regenerated building materials are weak in mechanical property and poor in compatibility with functional materials, and the requirements of the functional building materials cannot be met are effectively solved.

The utility model discloses an impurity removal device for asphalt recycling processing, including a removal component, which is composed of a screening mechanism and a plurality of removal mechanisms. The screening mechanism is arranged on the left side of the removal component, and is used for screening the size and diameter of the crushed asphalt particles and removing larger impurities. The screening mechanism is provided with a plurality of screening boxes, and each of the screening boxes is connected to the corresponding cleaning mechanism through a connecting pipe, so that each of the cleaning mechanisms can separate and remove impurities mixed with the asphalt particles in different screening boxes. By arranging the removal component on the impurity removal device for asphalt recycling processing, the rotary screening and cyclone separation on the removal component can separate and remove impurities in asphalt particles of different diameters, replacing the original vibration screening removal method, preventing impurities such as residual fabrics and rubber particles from affecting the quality of the recycled asphalt, and improving the impurity removal efficiency of the impurity removal device for the recycled asphalt.

The utility model belongs to the technical field of rubber processing, and particularly relates to fluorinated silicone rubber particle processing and drying equipment which comprises a drying box. A filter screen is fixedly connected to the middle of the drying box; the top of the drying box is fixedly connected with a first motor; the output end of the first motor penetrates through the top of the drying box; the output end of the first motor is fixedly connected with a stirring shaft; a cavity is formed in the bottom of the stirring shaft; the bottom of the stirring shaft penetrates through the middle of the filter screen; a plurality of groups of first exhaust holes are formed in the middle of the stirring shaft; the multiple sets of first exhaust holes are obliquely formed. The multiple groups of first exhaust holes are oppositely arranged; a plurality of groups of exhaust pipes are fixedly connected to the middle part of the stirring shaft; the end part of the exhaust pipe penetrates through the middle of the stirring shaft; and hot air flow is blown into the rubber particles, so that the rubber particles are subjected to uniform and strong heat action, moisture on the surfaces of the rubber particles is effectively and rapidly taken away, and the drying speed of the rubber particles is effectively increased.