CN210705480U - High-performance rubber modified asphalt particle production system - Google Patents
High-performance rubber modified asphalt particle production system Download PDFInfo
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- CN210705480U CN210705480U CN201921303013.0U CN201921303013U CN210705480U CN 210705480 U CN210705480 U CN 210705480U CN 201921303013 U CN201921303013 U CN 201921303013U CN 210705480 U CN210705480 U CN 210705480U
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Abstract
The utility model discloses a high performance rubber modified asphalt granule production system, including rubber powder sweetener, rubber powder sweetener's discharge end is connected with through first conveyor and mixes the equipment in advance, mix the discharge gate of equipment in advance and be connected with the heating equipment of extruding, the discharge end that heats the equipment of extruding is connected with abrasive material equipment, the discharge end of abrasive material equipment is connected with pelletization equipment. The utility model discloses at first carry out the plastify desulfurization with the vulcanized rubber powder, obtain the desulfurized modified rubber powder of plastify, macromolecular polymer exists a large amount of sulphur bond fracture in the modified rubber powder, and more thorough with the interaction of matrix asphalt has improved rubber modified asphalt softening point, has reduced the normal atmospheric temperature needle and has gone into degree and improve the consistency. The enrichment of micromolecular colloid leads the modified rubber powder to improve the glass transition temperature of the matrix asphalt. The utility model can produce rubber modified asphalt particles which are beneficial to normal temperature storage and transportation.
Description
Technical Field
The utility model relates to a modified asphalt technical field especially relates to a high performance rubber modified asphalt granule production system.
Background
At present, asphalt pavements such as highway pavements, airport runway pavements and the like are adopted, and the high-low temperature service performance of the base asphalt is poor due to obvious thermal sensitivity, so that modified asphalt is mostly used in the market at present to improve the product performance, wherein the rubber modified asphalt and the SBS modified asphalt are modified asphalt which is mostly used in the market at present. The rubber modified asphalt is a modified asphalt cementing material formed by mixing waste tire rubber powder with matrix asphalt according to a certain proportion and then fully reacting under the conditions of full mixing and high temperature (generally over 180 ℃), and compared with SBS modified asphalt, the rubber modified asphalt has the advantages of strong fatigue crack resistance and reflection crack resistance, strong low-temperature crack resistance, strong high-temperature permanent denaturation resistance, high durability, noise reduction and the like, and can also make waste tire resources utilized, the black pavement lasts for a long time and the like, so the rubber modified asphalt becomes a hotspot of modified asphalt research.
In the processing process of the rubber modified asphalt, the swelling effect of the rubber powder after absorbing the asphalt mainly exists, the rubber powder is adhered to each other after swelling to form a certain network structure, the matrix asphalt is changed into a two-phase continuous structure blending system of the rubber powder and the asphalt from an original approximately homogeneous body, and the macro-scale expression shows that the viscosity of the rubber modified asphalt is larger; in addition, a small amount of chemical reaction exists between the rubber powder and the matrix asphalt, the chemical reaction is a small amount of desulfurization degradation effect of the rubber powder, the desulfurized and degraded micromolecular colloid obviously has more excellent adhesion performance, meanwhile, the degraded micromolecular colloid can increase aromatic components and colloid in the modified asphalt and reduce saturated components, the saturated components play a role in lubricating and softening the asphalt, the lower the content of the saturated components is, the higher the softening point of the modified asphalt is, the smaller the penetration degree is, and the higher the consistency is. The high-temperature viscosity, the normal-temperature penetration degree and the softening point are main parameters for evaluating the performance of the rubber modified asphalt, and the higher the high-temperature viscosity, the smaller the normal-temperature penetration degree and the higher the softening point, the better the performance of the rubber modified asphalt is.
Most of rubber raw materials used in the conventional rubber modified asphalt are rubber powder formed by crushing waste tires to a certain particle size, the rubber powder belongs to vulcanized rubber essentially and has a large particle size, the swelling effect of the rubber powder on absorbing the asphalt is limited in the mixing and high-temperature processing processes of the rubber modified asphalt, namely, a certain amount of pure vulcanized rubber particles exist in the rubber modified asphalt, the particles are mixed in a net-shaped continuous structure and do not have the interaction effects of swelling, degradation, absorption and the like with matrix asphalt, and on the contrary, the particles do not effectively interact with the matrix asphalt, so that the internal components of the rubber modified asphalt are unevenly distributed, and the service performance is influenced. Under the action of high temperature and additives, the vulcanized rubber has limited desulfurization degradation amount, so that the capacity of reducing the saturated component content in the matrix asphalt is limited, which obviously limits the performance improvement of the final rubber modified asphalt. In addition, because the interaction between the rubber and the matrix asphalt is mainly swelling, the chemical reaction is weak, the rubber and the matrix asphalt are mainly formed into a two-phase incompatible system, namely, the molecular mixing degree generated by the chemical reaction is low, the glass transition temperature of the matrix asphalt is not greatly influenced, and the high-low temperature service performance of the rubber modified asphalt is not obviously improved.
In addition, due to the high viscosity characteristic in the production process, most of products of the rubber modified asphalt are canned or barreled for packaging, and still need to be subjected to hot mixing with stone materials in places such as a refinery, a mixing plant and the like and then to be transported to a construction site in a heat preservation manner during use, so that the cost in the use process is high, and the application range is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a high performance rubber modified asphalt granule production system is provided, can produce the rubber modified asphalt granule of being convenient for the normal atmospheric temperature storage transportation, can on-the-spot storage, use at any time, reduce the use cost, and this rubber modified asphalt granule has higher high temperature viscosity, lower normal atmospheric temperature needle penetration, higher softening point and good high low temperature performance.
In order to solve the technical problem, the technical scheme of the utility model is that: the high-performance rubber modified asphalt particle production system comprises rubber powder desulfurization equipment, wherein the discharge end of the rubber powder desulfurization equipment is connected with premixing equipment through a first conveying device, the discharge port of the premixing equipment is connected with heating extrusion equipment, the discharge end of the heating extrusion equipment is connected with grinding material equipment, and the discharge end of the grinding material equipment is connected with granulating equipment.
As a preferred technical scheme, the granulating device comprises a granulating rack, a granulating barrel is fixedly arranged on the granulating rack, a granulating shaft is rotatably arranged in the granulating barrel, a granulating pushing screw is arranged on the granulating shaft, a granulating feeding port is arranged at the feeding end of the granulating barrel, and a granulating pushing driving device is connected to the feeding end of the granulating shaft extending out of the granulating barrel; a forming pore plate is arranged on the end surface of the discharge end of the granulating barrel; the granulating machine frame is positioned at the discharge end of the granulating barrel and is sequentially provided with an air cooling device, a rotary cutting device and a mineral powder spraying device.
According to a preferable technical scheme, the premixing equipment comprises a premixer, wherein a feed end of the premixer is connected with a raw material bin and a modifier weighing feeder, the raw material bin is connected with an asphalt weighing feeder and a rubber powder weighing feeder, and the rubber powder weighing feeder is connected with a discharge hole of the first conveying device.
As a preferred technical scheme, the heating extrusion equipment comprises an extrusion rack, an extrusion barrel is transversely and fixedly arranged on the extrusion rack, an extrusion shaft is rotatably arranged in the extrusion barrel, and an extrusion helical blade is arranged on the extrusion shaft; an extrusion feed port is formed in the feed end of the extrusion cylinder, the feed end of the extrusion shaft extending out of the extrusion cylinder is connected with an extrusion driving device, and an electromagnetic heating coil is wound outside the extrusion cylinder; and the outlet end port of the extrusion cylinder is connected with the abrasive equipment.
As an optimized technical scheme, the grinding material equipment comprises a grinding material rack, an annular fixed grinding disc is fixedly mounted on the grinding material rack, an annular movable grinding disc corresponding to the annular fixed grinding disc is rotatably mounted on the grinding material rack, the annular movable grinding disc is connected with a grinding material driving device, a middle feeding hole is formed in the annular fixed grinding disc, and a discharging hole of the heating extrusion equipment is connected with the middle feeding hole.
As a preferred technical scheme, the rubber powder desulfurization equipment comprises at least three desulfurization cylinder units and at least one cooling cylinder unit, the desulfurization cylinder units and the cooling cylinder units are sequentially and transversely arranged from top to bottom, a desulfurization rack is arranged on the cooling cylinder unit positioned at the lowermost end, a discharge hole of each desulfurization cylinder unit is hermetically connected with a feed hole of the desulfurization cylinder unit adjacent to the lower part or the cooling cylinder unit, and a feed hole of each cooling cylinder unit is hermetically connected with a discharge hole of the desulfurization cylinder unit adjacent to the upper part or the cooling cylinder unit; and the discharge hole of the lowermost cooling cylinder unit is connected with the first conveying device.
Since the technical scheme is used, the utility model discloses at first carry out the plastify desulfurization with the vulcanize rubber powder, obtain the desulfurated modified rubber powder of plastify, there is a large amount of sulphur bond fracture in the macromolecular polymer in the modified rubber powder, and high polymer content reduces by a wide margin and does not have the large particle size granule basically, and more thorough with the interaction of matrix pitch makes rubber modified asphalt composition more even. The modified rubber powder has high content of micromolecular colloid, can generate better viscosity, can further reduce saturated components in matrix asphalt, further improve the softening point of the rubber modified asphalt, reduce the needle penetration at normal temperature and improve the viscosity. In addition, the enrichment of the micromolecular colloid improves the molecular mixing degree of the modified rubber powder and the matrix asphalt, namely the modified rubber powder can form partial compatibility with the matrix asphalt, and a two-phase incompatible system of rubber modified asphalt in the prior art is got rid of, so that the modified rubber powder can improve the glass transition temperature of the matrix asphalt. The utility model discloses more add the modifier as supplementary, the modifier can form compatibly with matrix asphalt, and the glass transition temperature of matrix asphalt is further improved to cooperation modified rubber powder, makes the utility model discloses the rubber modified asphalt that produces can have higher high temperature viscosity, lower normal atmospheric temperature needle penetration, higher softening point and good high low temperature performance. The utility model discloses utilize simultaneously to spray light mineral powder and form antiseized even isolation layer for the transportation can be stored at normal atmospheric temperature to the rubber modified asphalt granule, can the on-the-spot storage, use at any time, has reduced remote heat in the use and has stirred the cost such as heat preservation transportation.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1-rubber powder desulfurization equipment; 11-a devulcanization drum unit; 12-a cooling cylinder unit; 2-a first conveying device; 3-a premixing device; 31-a premixer; 32-a raw material bin; 33-rubber powder weighing feeder; 34-asphalt weigh feeder; 35-modifier weigh feeder; 4-heating the extrusion equipment; 5-an abrasive device; 6-granulating equipment; 61-air cooling device; 62-rotary cutting device; 63-mineral powder spraying device.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, the high-performance rubber modified asphalt particle production system comprises a rubber powder desulfurization device 1, wherein a discharge end of the rubber powder desulfurization device 1 is connected with a premixing device 3 through a first conveying device 2, a discharge port of the premixing device 3 is connected with a heating extrusion device 4, and a discharge end of the heating extrusion device 4 is connected with an abrasive device 5.
The rubber powder desulfurization equipment 1 comprises at least three desulfurization cylinder units 11 and at least one cooling cylinder unit 12, the desulfurization cylinder units 11 and the cooling cylinder units 12 are sequentially and transversely arranged from top to bottom, the cooling cylinder unit 12 positioned at the lowermost end is provided with a desulfurization rack, a discharge hole of each desulfurization cylinder unit 11 is hermetically connected with a feed hole of the desulfurization cylinder unit 11 or the cooling cylinder unit 12 adjacent to the lower part, and a feed hole of each cooling cylinder unit 12 is hermetically connected with a discharge hole of the desulfurization cylinder unit 11 or the cooling cylinder unit 12 adjacent to the upper part; the discharge hole of the cooling cylinder unit 12 at the lowest part is connected with the first conveying device 2.
This embodiment shows that desulfurization cylinder unit 11 is four, cooling cylinder unit 12 is one, desulfurization cylinder unit 11 is used for guaranteeing the temperature of inside vulcanized rubber powder, does benefit to the plastify desulfurization of vulcanized rubber powder, cooling cylinder unit 12 is used for the cooling output after the rubber powder plastify desulfurization. The desulfurization cylinder unit 11 comprises a desulfurization cylinder body, the outer surface of the desulfurization cylinder body is coated with a heat insulation layer, an electromagnetic heating coil is wound outside the heat insulation layer, two ends of the desulfurization cylinder body are fixedly connected with end seat plates which are also used as racks, the desulfurization cylinder body is provided with a desulfurization auger shaft penetrating through the inner cavity of the desulfurization cylinder body, the desulfurization auger shaft is fixedly provided with a helical blade, and one end of the desulfurization auger shaft is connected with a gearbox and a frequency modulation motor; one end of the desulfurization cylinder body is provided with a feeding flange with an upward opening, the feeding flange forms a feeding hole of the desulfurization cylinder unit 11, the other end of the desulfurization cylinder body is provided with a discharging flange with a downward opening, the discharging flange forms a discharging hole of the desulfurization cylinder unit 11, the feeding flange of the desulfurization cylinder body corresponds to the discharging flange of the adjacent desulfurization cylinder body above the feeding flange and is connected with a corrugated pipe, and sealing connection is formed by the feeding flange and the discharging flange; the discharging flange of the desulfurization cylinder body corresponds to the feeding flange of the desulfurization cylinder body adjacent to the lower part of the desulfurization cylinder body and is connected with a corrugated pipe, and thus, the discharging flange and the feeding flange form a sealing connection. The cooling cylinder unit 12 is similar to the desulfurization cylinder unit 11 in the principle of arrangement structure, and is different in that the cylinder body of the cooling cylinder unit 12 is not provided with a heat insulation layer and an electromagnetic heating coil, but is coated with a cooling water layer.
The rubber powder desulfurization equipment 1 can effectively plasticize and desulfurize vulcanized rubber powder under the conditions of high temperature, spiral conveying shearing and additive chemical catalysis for a long time to form desulfurized rubber powder, the desulfurized rubber powder forms modified rubber powder which is subsequently mixed with matrix asphalt in the embodiment, and the modified rubber powder is cooled and then is conveyed to the premixing equipment 3 through the first conveying device 2 for use. The first conveying device 2 may adopt a screw conveyor with a cooling water layer coated outside a cylinder, and a corrugated pipe may be arranged between a feed port of the first conveying device 2 and a discharge port of the cooling cylinder unit 12 at the lowest part to easily form a sealing connection.
The premixing device 3 comprises a premixer 31, wherein a raw material bin 32 and a modifier weighing feeder 35 are connected to the feed end of the premixer 31, the raw material bin 32 is connected with an asphalt weighing feeder 34 and a rubber powder weighing feeder 33, and the rubber powder weighing feeder 33 is connected with the discharge port of the first conveying device 2. The rubber powder weighing feeder 33 and the asphalt weighing feeder 34 are both structures which are formed by supporting a cylinder body on a frame body through at least three weighing sensors, arranging a gate valve at the discharging position of the cylinder body and connecting the cylinder body with the raw material bin 32 through a hose, wherein the cylinder body is respectively used for containing modified rubber powder and matrix asphalt, the structures are the prior known common technologies, and the structures are not repeated herein. The rubber powder weighing feeder 33 and the asphalt weighing feeder 34 can weigh a fixed amount of modified rubber powder and matrix asphalt in advance according to a certain proportion, when the pre-mixer 31 needs to feed, the raw material bin 32 feeds the modified rubber powder and the matrix asphalt in a fixed proportion into the pre-mixer 31, and based on the above functions, a gate valve is also arranged between the raw material bin 32 and the feed inlet of the pre-mixer 31. Because the amount of the modifier is less, the modifier weighing feeder 35 can be fed into the raw material bin 32 together with the modified rubber powder and the matrix asphalt in proportion in advance, and can also be fed into the premixer 31 separately when the premixer 31 needs to feed. The raw material bin 32 in the embodiment can buffer the feeding of the matrix asphalt and the modified rubber powder, and the continuous production is conveniently realized.
The premixer 31 may adopt a tank or a structure in which a stirring shaft and stirring teeth on the stirring shaft are used for stirring and premixing, which is well known to those skilled in the art and will not be described herein. The premixer 31 can premix the modified rubber powder, the matrix asphalt and the modifier into a solid mixture.
The heating extrusion equipment 4 comprises an extrusion rack, an extrusion barrel is transversely and fixedly arranged on the extrusion rack, an extrusion shaft is rotatably arranged in the extrusion barrel, and an extrusion helical blade is arranged on the extrusion shaft; an extrusion feed port is formed in the feed end of the extrusion cylinder, the feed end of the extrusion shaft extending out of the extrusion cylinder is connected with an extrusion driving device, and an electromagnetic heating coil is wound outside the extrusion cylinder; and the outlet end port of the extruding cylinder is connected with the grinding material equipment 5. The heating extrusion device 4 is a main component for heating the solid mixture in the embodiment, heats and softens the solid mixture in the process of extruding the solid mixture to the grinding device 5, and meanwhile, strongly pushes the material to be as a key component of the grinding device 5, so as to play a role in starting and stopping. The solid mixture is softened to form a softened mixture, and the softened mixture has certain fluidity, so that the components can be mixed uniformly and easily.
The discharge end of the grinding device 5 in this embodiment is connected with a granulating device 6.
The production method of the high-performance rubber modified asphalt particle production system comprises the following steps:
step one, a desulfurization step: the vulcanized rubber powder is desulfurized through the rubber powder desulfurization equipment 1, the desulfurized vulcanized rubber powder forms modified rubber powder, a large number of sulfur bonds are broken in the modified rubber powder, the content of high polymers in the modified rubber powder is greatly reduced, and large-granularity particles do not exist basically, so that the modified rubber powder is a precondition for more thorough interaction with matrix asphalt.
Step two, a premixing step: and (2) weighing the modified rubber powder, the matrix asphalt and the modifier in the step one in proportion respectively, and feeding the weighed materials into a premixing device 3, wherein the premixing device 3 fully premixes the matrix asphalt, the modified rubber powder and the modifier into a solid mixture. Because of the mechanical work in the premixing process, the solid mixture is softened to some extent, which is beneficial for the solid mixture to enter the heating extrusion device 4 compactly.
Step three, heating and softening: and (2) feeding the solid mixture obtained in the step (II) into a heating extrusion device 4, heating the solid mixture to 165-180 ℃ under the heating action in the extrusion process of the heating extrusion device 4, fully softening the solid mixture into a softened mixture, enabling the components in the softened mixture to be more uniform, and enabling the modified rubber powder and the matrix asphalt to have preliminary interaction due to the high temperature and softening action.
Step four, grinding and swelling: the heating extrusion equipment 4 pushes the softened mixture to the grinding equipment 5, the modified rubber powder and the matrix asphalt are fully interacted with each other under the grinding action of the grinding equipment 5, the modifier is also continuously and uniformly dispersed, and the softened mixture finally forms the rubber modified asphalt of a continuous phase mixing system. In addition, due to the breakage of most of the internal sulfur bonds in the modified rubber powder, the content of micromolecular colloid is high, more internal sulfur bonds are broken under the shearing and grinding effects of the grinding material equipment 5, most of vulcanized rubber in the modified rubber powder can realize desulfurization, the content of the micromolecular colloid is obviously improved, and the method is equivalent to the obvious increase of the proportion of chemical reaction between the rubber powder and asphalt in the prior art, so that the saturated components in the matrix asphalt can be obviously reduced, the softening point of the rubber modified asphalt is further improved, the needle penetration at normal temperature is reduced, and the viscosity is improved.
Step five, granulating: and D, feeding the rubber modified asphalt obtained in the step four into a granulating device 6, wherein the ground rubber modified asphalt is in a softened state, preparing the rubber modified asphalt into finished product particles by the granulating device 6, spraying light mineral powder on the finished product particles, and forming the rubber modified asphalt particles which are convenient to store and transport at normal temperature by adhering the finished product particles with the light mineral powder on the surfaces.
The vulcanized rubber powder is firstly plasticized and desulfurized, the internal high polymer is broken to form the modified rubber powder, the content of the high polymer in the modified rubber powder is greatly reduced, no large-particle-size particles exist basically, interaction with the matrix asphalt is more thorough, and the components of the rubber modified asphalt are more uniform. The content of micromolecular colloid in the modified rubber powder after plasticizing and desulfurizing is higher, and the content of the micromolecular colloid is increased through high temperature and grinding, so that better viscosity can be generated, the saturation in the matrix asphalt can be further reduced, the softening point of the rubber modified asphalt is further improved, the needle penetration at normal temperature is reduced, and the viscosity is improved. In the embodiment, after the rubber powder is plasticized and desulfurized in advance, the modified rubber powder and the matrix asphalt are softened and ground at high temperature, and in the process, compared with the prior art, a large amount of micro-molecular colloid after plasticizing and desulfurizing can exist, so that the limit of desulfurization decomposition reaction of vulcanized rubber in the prior art is broken through. The enrichment of the micromolecular colloid also improves the molecular mixing degree of the modified rubber powder and the matrix asphalt, namely the modified rubber powder can form partial compatibility with the matrix asphalt, and a two-phase incompatible system of the rubber modified asphalt in the prior art is got rid of, so that the modified rubber powder can improve the glass transition temperature of the matrix asphalt. In the embodiment, a modifier is further added as an assistant, the modifier can be compatible with the matrix asphalt, and the glass transition temperature of the matrix asphalt is further improved by matching with the modified rubber powder, so that the rubber modified asphalt of the embodiment can have higher high-temperature viscosity, lower normal-temperature penetration, higher softening point and good high-low temperature service performance.
In the embodiment, the viscosity existing in the production process of the rubber modified asphalt is simultaneously utilized, and the light mineral powder is adhered to the surface to serve as the anti-adhesion isolation layer, so that the prepared rubber modified asphalt particles can be stored and transported at normal temperature, the use of special heat-preservation transportation vehicles in conventional construction can be reduced, and the road construction is more convenient and faster. The rubber modified asphalt particles produced by the embodiment are novel asphalt products which break through the prior art, and have high economic value and social value.
The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. High performance rubber modified asphalt granule production system, its characterized in that: the rubber powder desulfurization device comprises rubber powder desulfurization equipment, wherein the discharge end of the rubber powder desulfurization equipment is connected with premixing equipment through a first conveying device, the discharge port of the premixing equipment is connected with heating extrusion equipment, the discharge end of the heating extrusion equipment is connected with grinding material equipment, and the discharge end of the grinding material equipment is connected with granulation equipment.
2. The high performance rubber modified asphalt pellet production system of claim 1, wherein: the granulating device comprises a granulating rack, a granulating barrel is fixedly arranged on the granulating rack, a granulating shaft is rotatably mounted in the granulating barrel, a granulating pushing screw is arranged on the granulating shaft, a granulating feeding port is formed in the feeding end of the granulating barrel, and a granulating pushing driving device is connected to the feeding end of the granulating shaft, which extends out of the granulating barrel; a forming pore plate is arranged on the end surface of the discharge end of the granulating barrel; the granulating machine frame is positioned at the discharge end of the granulating barrel and is sequentially provided with an air cooling device, a rotary cutting device and a mineral powder spraying device.
3. The high performance rubber modified asphalt pellet production system of claim 1, wherein: the premixing equipment comprises a premixer, wherein the feed end of the premixer is connected with a raw material bin and a modifier weighing feeder, the raw material bin is connected with an asphalt weighing feeder and a rubber powder weighing feeder, and the rubber powder weighing feeder is connected with the discharge port of the first conveying device.
4. The high performance rubber modified asphalt pellet production system of claim 1, wherein: the heating extrusion equipment comprises an extrusion rack, an extrusion barrel is transversely and fixedly arranged on the extrusion rack, an extrusion shaft is rotatably arranged in the extrusion barrel, and an extrusion helical blade is arranged on the extrusion shaft; an extrusion feed port is formed in the feed end of the extrusion cylinder, the feed end of the extrusion shaft extending out of the extrusion cylinder is connected with an extrusion driving device, and an electromagnetic heating coil is wound outside the extrusion cylinder; and the outlet end port of the extrusion cylinder is connected with the abrasive equipment.
5. The high performance rubber modified asphalt pellet production system of claim 1, wherein: the grinding material equipment comprises a grinding material rack, wherein an annular fixed grinding disc is fixedly arranged on the grinding material rack, and an annular movable grinding disc corresponding to the annular fixed grinding disc is rotatably arranged on the grinding material rack, the annular movable grinding disc is connected with a grinding material driving device, a middle feeding hole is formed in the annular fixed grinding disc, and a discharging hole of the heating extrusion equipment is connected with the middle feeding hole.
6. The high-performance rubber-modified asphalt pellet production system as claimed in any one of claims 1 to 5, wherein: the rubber powder desulfurization equipment comprises at least three desulfurization cylinder units and at least one cooling cylinder unit, the desulfurization cylinder units and the cooling cylinder units are sequentially and transversely arranged from top to bottom, a desulfurization rack is arranged on the cooling cylinder unit positioned at the lowermost end, a discharge hole of each desulfurization cylinder unit is hermetically connected with a feed hole of the desulfurization cylinder unit adjacent to the lower part or the cooling cylinder unit, and a feed hole of each cooling cylinder unit is hermetically connected with a discharge hole of the desulfurization cylinder unit adjacent to the upper part or the cooling cylinder unit; and the discharge hole of the lowermost cooling cylinder unit is connected with the first conveying device.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110355898A (en) * | 2019-08-12 | 2019-10-22 | 莒县东盛橡胶有限公司 | High-performance rubber modified pitch particle manufacture system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110355898A (en) * | 2019-08-12 | 2019-10-22 | 莒县东盛橡胶有限公司 | High-performance rubber modified pitch particle manufacture system |
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