Asphalt modified batching system

Abstract

The present invention relates to the field of equipment for asphalt modification, in particular to an asphalt modification batching system, comprising a modified asphalt delivery pipeline, a modified material delivery mechanism and a reaction stirring barrel, wherein an interception sampling mechanism is provided at the bottom of the feed end of the modified asphalt delivery pipeline, the modified material delivery mechanism comprises a blower, a feeder and a delivery pipeline, the blower is connected to the feeder, the output end of the feeder is connected to the feed port at the top of the reaction stirring barrel through the delivery pipeline, a rotary uniform throwing mechanism is provided at the feed port at the top of the reaction stirring barrel, the throwing disk of the rotary uniform throwing mechanism is conical, the throwing disk is composed of a longitudinal part and a horizontal part arranged staggered, the connection between the bottom of the longitudinal part and the outer end of the horizontal part is an arc-shaped transition surface, the longitudinal part of the throwing disk is provided with a horizontal throwing through hole, and a viscous material stirring mechanism is provided in the reaction stirring barrel. The present invention solves the problems of a large amount of residual materials and serious waste when feeding in the existing asphalt modification batching system, and the inability to screen the transported materials.

Description

Technical Field

[0001] The invention relates to the field of equipment for asphalt modification, in particular to an asphalt modification batching system. Background Art

[0002] When modifying asphalt, a reaction stirring barrel is required. The basic principle is to add asphalt raw materials into the reaction stirring barrel, and then add some auxiliary materials according to the modification requirements, such as rubber powder, high-temperature tackifier, etc. After adding, use the stirring mechanism in the reaction stirring barrel to stir it evenly to complete the modification of the asphalt. In the prior art, a screw conveying mechanism is generally used to convey powder materials. For details, please refer to the patent with application number "CN201620200676.X". In addition to the solutions disclosed in the above patent documents, basically all mechanisms for feeding the stirring barrel for asphalt modification in this field use a screw conveying mechanism, such as the contents disclosed in the following patent documents: "CN202221746513.3", "CN201620985388.X". The specific reason is mainly because the screw feeding mechanism is relatively stable. Moreover, some smoke will rush up during asphalt modification. This part of the smoke will not affect the spiral feeding mechanism, because it uses a specific mechanical structure to push the material to the feed port of the reaction mixing drum. However, spiral conveying also has certain defects. Specifically, there is a certain gap between the silo wall and the rotating feeding augers in the spiral conveying mechanism. When conveying powder, such a gap will cause material residues. The conveying amount is usually smaller than the amount poured into the silo, which will cause material waste. Moreover, the residual material will have a certain impact on the purity of the ingredients during the next modification, affecting the modification results. Then the second point is that the powder cannot be screened when feeding through the spiral conveying mechanism. Some powders contain certain impurities, so this will also have a certain impact on the modification of asphalt. Therefore, it is necessary to improve the existing asphalt modification ingredient conveying system in view of the above defects. Summary of the invention

[0003] The purpose of the present invention is to provide an asphalt modified batching system to solve the problems of a large amount of residual materials and serious waste during material feeding in the existing asphalt modified batching system, and the inability to screen the transported materials.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An asphalt modified batching system comprises a modified asphalt delivery pipeline, a modified material delivery mechanism and a reaction stirring barrel, wherein the modified asphalt delivery pipeline is arranged at the bottom of the reaction stirring barrel, the discharge port of the modified material delivery mechanism is connected to the feed port arranged at the top of the reaction stirring barrel, the bottom of the feed end of the modified asphalt delivery pipeline is provided with an interception sampling mechanism, the modified material delivery mechanism comprises a blower, a feeder and a delivery pipeline, the blower is connected to the feeder, a feed hopper is arranged on the top of the feeder, the output end of the feeder is connected to the feed port on the top of the reaction stirring barrel through the delivery pipeline, a rotary uniform material throwing mechanism is arranged at the feed port on the top of the reaction stirring barrel, and the rotary uniform material throwing mechanism comprises a The invention comprises a rotating drum and a throwing disc, wherein the top of the rotating drum is rotatably connected to the top plate of the reaction stirring barrel, the throwing disc is arranged at the bottom of the rotating drum, the throwing disc is connected to the rotating drum through a connecting rod, an air outlet gap is left between the throwing disc and the rotating drum, the throwing disc is conical, and the two side edges of the longitudinal section of the throwing disc are both stepped, the throwing disc is composed of a longitudinal portion and a horizontal portion which are staggered, the connection between the bottom of the longitudinal portion and the outer end of the horizontal portion is an arc-shaped transition surface, the longitudinal portion of the throwing disc is evenly provided with horizontal throwing holes, a viscous material stirring mechanism is arranged in the reaction stirring barrel, and the top of the viscous material stirring mechanism passes through the top of the reaction stirring barrel upward and is connected to the output shaft of the rotating motor arranged on the top surface of the reaction stirring barrel.

[0006] First of all, in this scheme, the original screw conveying device is changed to a gas pressure conveying device. In this way, when feeding, the weight of impurities is usually heavier than the weight of the raw materials being transported. Therefore, the materials can be screened by controlling the air volume, so that the air supply pressure can blow the materials away and send them into the reaction mixing barrel, and then the heavier impurities can be left behind, and then the wind pressure is fully covered, so the materials in the conveying pipeline can be completely sent into the reaction mixing barrel, so there will be no waste of raw materials, and because the amount of modified materials added is more accurate, the modified effect is better, and it is set in A rotating uniform throwing mechanism is provided at the feed inlet on the top of the reaction mixing barrel to achieve uniform throwing of materials. Because such a throwing mechanism does not exist in the prior art, the materials fall directly to one place after entering the reaction mixing barrel. In this way, it takes a relatively long time to mix them evenly with the asphalt base material, which has low production efficiency. With this throwing mechanism, the materials will fall on the throwing plate after entering the reaction mixing barrel. At this time, the throwing plate is rotating with the drum. After the materials fall on the throwing plate, they are thrown through the throwing holes. The material is evenly thrown around and falls evenly on the asphalt base material, which can effectively reduce the mixing time of the reaction mixing barrel and improve production efficiency. Moreover, since the present application uses pneumatic feeding, the efficiency is more efficient than that of the screw conveying mechanism, so the overall modification efficiency is improved. In addition, the setting of the throwing plate can also specifically solve the problem of the upward rush of smoke during the stirring and modification in the reaction mixing barrel, because the throwing plate is located directly below the feed port on the top of the reaction mixing barrel, which can block the upward rush of asphalt smoke and prevent it from directly colliding with the feeding airflow, affecting For gas pressure feeding, the reason why the throwing plate is a stepped structure and the throwing hole is horizontally arranged in the longitudinal part is to avoid the upward rushing asphalt fume affecting the throwing. Because if the throwing hole is vertically arranged in the horizontal part, the upward rushing asphalt fume will directly pass through the throwing hole and affect the throwing. The arc-shaped transition surface at the connection between the bottom of the longitudinal part and the outer end of the horizontal part is more conducive to the smooth passage of the material. Finally, in order to inspect the modified material, an interception sampling mechanism is also arranged at the bottom of the feed end of the modified asphalt conveying pipeline to facilitate sampling and detection.

[0007] As a further preferred embodiment of the present invention, the interception sampling mechanism includes a sampling barrel, which is threadedly connected to the asphalt delivery pipeline, a sampling channel is opened in the middle of the sampling barrel, a sampling port is opened on one side of the upper part of the sampling channel, and a limiting ring is provided on the outer wall of the lower part of the sampling barrel.

[0008] Such a sampling tube has a simple structure and can be used as a plug when not in use. When sampling is needed, just twist the sampling tube upward to expose the sampling port in the inner cavity of the asphalt delivery pipeline. At this time, some of the modified asphalt flowing through will enter the sampling channel from the sampling port, and then flow out from the bottom of the sampling channel. The bottom of the sampling tube is provided with a sample flow outlet, which is connected to the sampling channel. The limit ring arranged on the lower outer wall of the sampling tube can limit the upward rotation position. When the top surface of the limit ring is against the bottom surface of the asphalt delivery pipeline, the front of the sampling port faces the modified asphalt fluid and is completely exposed in the asphalt delivery pipeline.

[0009] As a further preferred embodiment of the present invention, the sampling channel wall at the rear end of the sampling port protrudes forward to form a diverter surface, and the diverter surface is arranged obliquely forward from bottom to top.

[0010] The divided flow surface can reduce the impact on the sampling tube, and the divided flow surface is arranged to be inclined forward from bottom to top, which can make the modified asphalt fluid flow downward into the sampling channel better.

[0011] As a further preferred embodiment of the present invention, an extrusion and crushing bin and a vibration screening bin are sequentially arranged above the feed hopper bin from top to bottom; the discharge port of the extrusion and crushing bin and the feed port of the vibration screening bin, as well as the discharge port of the vibration screening bin and the feed port of the feed hopper bin are all connected by a flexible sleeve structure; horizontal extrusion rollers are arranged side by side in the extrusion and crushing bin, and crushing short columns are arranged on the surface of the horizontal extrusion rollers; a vibration motor is arranged outside the vibration screening bin, and spring connectors are arranged at the four corners of the bottom surface of the vibration screening bin shell; the bottom of the vibration screening bin is connected to a support plate, and the support plate is connected to a vertical support rod; a heating mechanism is arranged on the bucket wall of the feed hopper bin, and a water vapor exhaust outlet is arranged on the top of the feed hopper bin.

[0012] Since the stored granular materials may have the problem of agglomeration, a screw conveying mechanism was used before, which can squeeze and crush the agglomerates to a certain extent during the feeding process to make them smaller, so as not to affect the subsequent mixing too much. However, if gas pressure is used for feeding, if the agglomerates are too large and heavy, the gas pressure is not enough to send them into the reaction mixing barrel. Therefore, the powder needs to be processed before feeding. The processing here is to first use the extrusion and crushing bin to break up the large agglomerates in the material, and then use the vibration and screening function of the vibrating screen to further disperse the agglomerated materials, which effectively ensures the transportation of the materials. The heating mechanism set in the feed hopper bin can bake out the moisture in the relatively moist materials, so that the materials are lighter, drier, and easier to be transported by air pressure.

[0013] As a further preference of the present invention, a vibrating scattering screen plate is provided in the inner cavity of the vibrating screening bin, the vibrating scattering screen plate comprises a screen plate body and a top surface scattering mechanism, the screen plate body consists of a frame body and a conical sieve hole structure, the conical sieve hole structure is evenly arranged on the inner side of the frame body, the cone tip of the conical sieve hole structure is located at the bottom, the top surface scattering mechanism is a scattering short column, the scattering short column is vertically arranged on the supporting surface at the top of the conical sieve hole structure, and the upper part of the scattering short column is evenly provided with horizontal auxiliary scattering pillars.

[0014] The vibrating breaking screen plate in the vibrating screening bin can effectively break up the materials, and is more suitable for solving the problem of material agglomeration than ordinary screen plates.

[0015] As a further preferred embodiment of the present invention, the rotating drum includes a tooth row transmission part, a bearing connection part and a throwing plate connection part which are arranged in sequence from top to bottom, and the rotating drum is rotatably connected to the top of the reaction stirring barrel through the bearing connection part, and the tooth row transmission part is located outside the reaction stirring barrel, and a circle of transmission tooth rows is arranged around the barrel body at the tooth row transmission part, and the transmission tooth row is connected to a driving gear, and the driving gear is arranged at one end of the output shaft of the throwing mechanism rotating motor at the top of the reaction stirring barrel.

[0016] The rotating motor can well control the rotation of the drum.

[0017] As a further preferred embodiment of the present invention, the top surface of the throwing plate is provided with an upward extension portion, the upper portion of the upward extension portion surrounds the outside of the rotating drum, and the upward extension portion extends upward to a position close to the top surface of the inner cavity of the reaction stirring barrel, and an air outlet opening is also left between the upward extension portion and the top surface of the inner cavity of the reaction stirring barrel.

[0018] The upward extension portion arranged on the top surface of the throwing disc can effectively protect the bearing between the rotating drum and the reaction stirring barrel, prevent the asphalt fume from directly rushing in and adhering to it after the asphalt fume rushes in, and finally forming oil scale, which affects its rotation function. The wind that sends the material into the reaction stirring barrel runs out from the air outlet gap between the throwing disc and the rotating drum, and then runs out from the air outlet gap between the upward extension portion and the top surface of the inner cavity of the reaction stirring barrel. This part of the wind can effectively prevent the asphalt fume from entering the range covered by the upper extension portion, thereby protecting the bearing between the rotating drum and the reaction stirring barrel, and the gas in the reaction stirring barrel will eventually be sent out of the reaction stirring barrel through the dust collector.

[0019] As a further preferred embodiment of the present invention, the lower portion of the outer end of the material throwing through hole is an outwardly arc-shaped protruding smoke-proof straight-impact portion.

[0020] Due to the nature of asphalt fume, it is easy to adhere to the surface of objects, which will form grease over time. Therefore, an outward arc-shaped protrusion to prevent the fume from directly impacting the object is provided. This can block most of the fume and prevent the outer end of the throwing hole from quickly accumulating a large amount of grease, which would affect the throwing effect.

[0021] As a further preferred embodiment of the present invention, the top surface of the reaction stirring barrel is also provided with an artificial addition port for other auxiliary materials, and an "L"-shaped feeding barrel is provided at the bottom of the artificial addition port for other auxiliary materials. The bottom surface of the "L"-shaped feeding barrel is a feeding slope, and a smoke absorption port is provided in the middle of the barrel wall of the vertical section of the "L"-shaped feeding barrel, and the smoke absorption port is connected to the exhaust fan through a smoke absorption pipe.

[0022] The artificial addition port for other auxiliary materials can facilitate the operator to manually add some modified auxiliary materials, which is available in the field. However, when the existing artificial addition port for other auxiliary materials is in use, the asphalt fume will directly rush up to the artificial addition port for other auxiliary materials, and the unloading environment for operators is poor. In order to solve this problem, an "L"-shaped feeding barrel is set, and a smoke absorption port is also set in the middle of the barrel wall of the vertical section of the "L"-shaped feeding barrel. When unloading, the smoke that directly rushes up can be blocked, and the smoke that enters the "L"-shaped feeding barrel from the side can be sucked away by the smoke absorption port, which effectively improves the unloading environment for workers. The unloading slope at the bottom of the "L"-shaped feeding barrel can make the material fall smoothly.

[0023] As a further preferred embodiment of the present invention, a filter is provided at the smoke absorption port.

[0024] Prevent additives from entering the flue gas absorption port.

[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0026] 1. First of all, in this scheme, the original screw conveying device is changed to a gas pressure conveying device. In this way, when feeding, the weight of impurities is usually heavier than the weight of the raw materials being transported. Therefore, the materials can be screened by controlling the air volume, so that the air supply pressure can blow the materials away and send them into the reaction mixing barrel, and then the heavier impurities can be left behind, and then the wind pressure is fully covered, so the materials in the conveying pipeline can be completely sent into the reaction mixing barrel, so there will be no waste of raw materials, and because the amount of modified materials added is more accurate, the modified effect is better, and the setting A rotating uniform throwing mechanism is provided at the feed inlet on the top of the reaction mixing barrel to achieve uniform throwing of materials. Because there is no such throwing mechanism in the prior art, the materials fall directly to one place after entering the reaction mixing barrel. In this way, it takes a relatively long time to mix them evenly with the asphalt base material, which has low production efficiency. With this throwing mechanism, the materials will fall on the throwing plate after entering the reaction mixing barrel. At this time, the throwing plate is rotating with the rotating drum. After the materials fall on the throwing plate, they will be thrown out from the throwing hole. The material is evenly thrown around and falls evenly on the asphalt base material, which can effectively reduce the mixing time of the reaction mixing barrel and improve production efficiency. Moreover, since the present application uses pneumatic feeding, the efficiency is more efficient than that of the screw conveying mechanism, so the overall modification efficiency is improved. In addition, the setting of the throwing plate can also specifically solve the problem of the upward rush of smoke during the stirring and modification in the reaction mixing barrel, because the throwing plate is located directly below the feed port on the top of the reaction mixing barrel, which can block the upward rush of asphalt smoke and prevent it from directly colliding with the feeding airflow, affecting The gas pressure feeding is affected. The reason why the throwing plate is a stepped structure and the throwing hole is horizontally arranged in the longitudinal part is to avoid the upward rushing asphalt fume affecting the throwing. Because if the throwing hole is vertically arranged in the horizontal part, the upward rushing asphalt fume will directly pass through the throwing hole and affect the throwing. The arc-shaped transition surface at the connection between the bottom of the longitudinal part and the outer end of the horizontal part is more conducive to the smooth passage of the material. Finally, in order to inspect the modified material, an interception sampling mechanism is also arranged at the bottom of the feed end of the modified asphalt conveying pipeline to facilitate sampling and detection.

[0027] 2. Such a sampling tube has a simple structure and can be used as a plug when not in use. When sampling is needed, just twist the sampling tube upward to expose the sampling port in the inner cavity of the asphalt delivery pipeline. At this time, some of the modified asphalt flowing through will enter the sampling channel from the sampling port and then flow out from the bottom of the sampling channel. The bottom of the sampling tube is provided with a sample outflow port, which is connected to the sampling channel. The limit ring arranged on the outer wall of the lower part of the sampling tube can limit the upward rotation position. When the top surface of the limit ring is against the bottom surface of the asphalt delivery pipeline, the front of the sampling port faces the modified asphalt fluid and is completely exposed in the asphalt delivery pipeline.

[0028] 3. The diverter surface can reduce the impact on the sampling tube. The diverter surface is tilted forward from bottom to top, which can make the modified asphalt fluid flow downward into the sampling channel better.

[0029] 4. Since the stored granular materials may have the problem of agglomeration, a screw conveying mechanism was used before, which can squeeze and crush the agglomerates to make them smaller to a certain extent during the feeding process, so as not to affect the subsequent mixing too much. However, if gas pressure is used for feeding, if the agglomerates are too large and heavy, the gas pressure is not enough to send them into the reaction mixing barrel. Therefore, the powder needs to be processed before feeding. The processing here is to first use the extrusion and crushing bin to break up the large agglomerates in the material, and then use the vibration and screening function of the vibrating screen to further disperse the agglomerated materials, which effectively ensures the transportation of the materials. The heating mechanism set in the feed hopper bin can bake out the moisture in the relatively moist materials, so that the materials are lighter, drier, and easier to be transported by air pressure.

[0030] 5. The vibrating breaking screen plate in the vibrating screening bin can break up the materials very well, and is more suitable for solving the problem of material agglomeration than ordinary screen plates.

[0031] 6. The upward extension part set on the top surface of the throwing disc can effectively protect the bearing between the rotating drum and the reaction stirring barrel, prevent the asphalt fume from directly rushing in and adhering to it after the asphalt fume rushes in, and finally form oil scale, which affects its rotation function. The wind that sends the material into the reaction stirring barrel runs out from the air outlet gap between the throwing disc and the rotating drum, and then runs out from the air outlet gap between the upward extension part and the top surface of the inner cavity of the reaction stirring barrel. This part of the wind can effectively prevent the asphalt fume from entering the range covered by the upper extension part, thereby protecting the bearing between the rotating drum and the reaction stirring barrel. The gas in the reaction stirring barrel will eventually be sent out of the reaction stirring barrel through the dust collector.

[0032] 7. Due to the nature of asphalt fume, it is easy to adhere to the surface of objects, which will form grease over time. Therefore, an outward arc-shaped protrusion to prevent the fume from directly rushing out is set, which can block most of the fume and prevent the outer end of the throwing hole from quickly accumulating a large amount of grease, which will affect the throwing effect.

[0033] 8. The artificial addition port for other auxiliary materials can facilitate the operator to manually add some modified auxiliary materials, which is available in the field. However, when the existing artificial addition port for other auxiliary materials is in use, the asphalt fume will directly rush up to the artificial addition port for other auxiliary materials, and the unloading environment for operators is poor. In order to solve this problem, an "L"-shaped feeding barrel is set, and a fume absorption port is also set in the middle of the barrel wall of the vertical section of the "L"-shaped feeding barrel. When unloading, the fume that directly rushes up can be blocked, and the fume that enters the "L"-shaped feeding barrel from the side can be sucked away by the fume absorption port, which effectively improves the unloading environment for workers. The unloading slope at the bottom of the "L"-shaped feeding barrel can make the material fall smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the present invention.

[0035] Figure 2 It is a schematic structural diagram of the throwing plate of the present invention.

[0036] Figure 3 It is a cross-sectional view of the connection between the reaction stirring barrel, the rotating drum and the throwing plate of the present invention.

[0037] Figure 4 It is a structural schematic diagram of the interception and sampling mechanism of the present invention.

[0038] Figure 5 It is a schematic structural diagram of the vibrating breaking screen plate of the present invention.

[0039] Figure 6 It is a schematic cross-sectional view of the "L"-shaped feeding cylinder of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Specific embodiment 1:

[0047] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6An asphalt modification batching system is shown, including a modified asphalt delivery pipeline, a modified material delivery mechanism 1 and a reaction stirring barrel 2, the modified asphalt delivery pipeline is arranged at the bottom of the reaction stirring barrel 2, the discharge port of the modified material delivery mechanism 1 is connected to the feed port arranged at the top of the reaction stirring barrel 2, and a retention sampling mechanism 3 is provided at the bottom of the feed end of the modified asphalt delivery pipeline, the modified material delivery mechanism 1 includes a blower 11, a feeder 12 and a delivery pipeline 13, the blower 11 is connected to the feeder 12, and a feed hopper 14 is provided on the top of the feeder 12, the output end of the feeder 12 is connected to the feed port on the top of the reaction stirring barrel 2 through the delivery pipeline 13, and a rotary uniform throwing mechanism 4 is provided at the feed port on the top of the reaction stirring barrel 2, and the rotary uniform throwing mechanism 4 includes a rotating drum 41 and a throwing disc 42, The top of the rotating drum 41 is rotatably connected to the top plate of the reaction stirring barrel 2, the throwing disc 42 is arranged at the bottom of the rotating drum 41, the throwing disc 42 is connected to the rotating drum 41 through a connecting rod 43, an air outlet gap 9 is left between the throwing disc 42 and the rotating drum 41, the throwing disc 42 is conical, and the two side edges of the longitudinal section of the throwing disc 42 are both stepped, the throwing disc 42 is composed of a longitudinal portion 421 and a horizontal portion 422 that are staggered, the connection between the bottom of the longitudinal portion 421 and the outer end of the horizontal portion 422 is an arc-shaped transition surface, the longitudinal portion 421 of the throwing disc 42 is evenly opened with horizontal throwing through holes 423, a viscous material stirring mechanism 21 is provided in the reaction stirring barrel 2, and the top of the viscous material stirring mechanism 21 passes through the top of the reaction stirring barrel 2 upward and is connected to the output shaft of the rotating motor 22 arranged on the top surface of the reaction stirring barrel 2.

[0048] First of all, in this scheme, the original screw conveying device is changed to a gas pressure conveying device. In this way, when feeding, the weight of impurities is usually heavier than the weight of the raw materials being transported. Therefore, the materials can be screened by controlling the air volume, so that the air supply pressure can blow the materials away and send them into the reaction mixing barrel, and then the heavier impurities can be left behind, and then the wind pressure is fully covered, so the materials in the conveying pipeline can be completely sent into the reaction mixing barrel, so there will be no waste of raw materials, and because the amount of modified materials added is more accurate, the modified effect is better, and it is set in A rotating uniform throwing mechanism is provided at the feed inlet on the top of the reaction mixing barrel to achieve uniform throwing of materials. Because such a throwing mechanism does not exist in the prior art, the materials fall directly to one place after entering the reaction mixing barrel. In this way, it takes a relatively long time to mix them evenly with the asphalt base material, which has low production efficiency. With this throwing mechanism, the materials will fall on the throwing plate after entering the reaction mixing barrel. At this time, the throwing plate is rotating with the drum. After the materials fall on the throwing plate, they are thrown through the throwing holes. The material is evenly thrown around and falls evenly on the asphalt base material, which can effectively reduce the mixing time of the reaction mixing barrel and improve production efficiency. Moreover, since the present application uses pneumatic feeding, the efficiency is more efficient than that of the screw conveying mechanism, so the overall modification efficiency is improved. In addition, the setting of the throwing plate can also specifically solve the problem of the upward rush of smoke during the stirring and modification in the reaction mixing barrel, because the throwing plate is located directly below the feed port on the top of the reaction mixing barrel, which can block the upward rush of asphalt smoke and prevent it from directly colliding with the feeding airflow, affecting For gas pressure feeding, the reason why the throwing plate is a stepped structure and the throwing hole is horizontally arranged in the longitudinal part is to avoid the upward rushing asphalt fume affecting the throwing. Because if the throwing hole is vertically arranged in the horizontal part, the upward rushing asphalt fume will directly pass through the throwing hole and affect the throwing. The arc-shaped transition surface at the connection between the bottom of the longitudinal part and the outer end of the horizontal part is more conducive to the smooth passage of the material. Finally, in order to inspect the modified material, an interception sampling mechanism is also arranged at the bottom of the feed end of the modified asphalt conveying pipeline to facilitate sampling and detection. Specific embodiment 2:

[0050] This embodiment further illustrates the interception sampling mechanism 3 on the basis of the specific embodiment 1. The interception sampling mechanism 3 includes a sampling barrel 31, and the sampling barrel 31 is threadedly connected to the asphalt conveying pipeline. A sampling channel 311 is provided in the middle of the sampling barrel 31, and a sampling port 312 is provided on one side of the upper part of the sampling channel 311. A limiting ring 32 is provided on the outer wall of the lower part of the sampling barrel 31.

[0051] Such a sampling tube has a simple structure and can be used as a plug when not in use. When sampling is needed, just twist the sampling tube upward to expose the sampling port in the inner cavity of the asphalt delivery pipeline. At this time, some of the modified asphalt flowing through will enter the sampling channel from the sampling port, and then flow out from the bottom of the sampling channel. The bottom of the sampling tube is provided with a sample flow outlet, which is connected to the sampling channel. The limit ring arranged on the lower outer wall of the sampling tube can limit the upward rotation position. When the top surface of the limit ring is against the bottom surface of the asphalt delivery pipeline, the front of the sampling port faces the modified asphalt fluid and is completely exposed in the asphalt delivery pipeline. Specific embodiment 3:

[0053] This embodiment further illustrates the sampling port 312 based on the specific embodiment 2. The sampling channel wall at the rear end of the sampling port 312 protrudes forward to form a diverter surface 313. The diverter surface 313 is arranged obliquely from bottom to top and forward.

[0054] The divided flow surface can reduce the impact on the sampling tube, and the divided flow surface is arranged to be inclined forward from bottom to top, which can make the modified asphalt fluid flow downward into the sampling channel better. Specific embodiment 4:

[0056] This embodiment further illustrates the feed hopper bin 14 on the basis of the specific embodiment 1, and an extrusion and crushing bin 15 and a vibration screening bin 16 are sequentially arranged above the feed hopper bin 14 from top to bottom, and the discharge port of the extrusion and crushing bin 15 and the feed port of the vibration screening bin 16, as well as the discharge port of the vibration screening bin 16 and the feed port of the feed hopper bin 14 are all connected by a flexible sleeve structure 5, and horizontal extrusion rollers are arranged side by side in the extrusion and crushing bin 15, and crushing short columns are arranged on the surface of the horizontal extrusion rollers, and a vibration motor is arranged outside the vibration screening bin 16, and spring connectors are arranged at the four corners of the bottom surface of the shell of the vibration screening bin 16, the bottom of the vibration screening bin 16 is connected to a support plate, and the support plate is connected to a vertical support rod, the bucket wall of the feed hopper bin 14 is provided with a heating mechanism, and the top of the feed hopper bin 14 is provided with a water vapor exhaust port.

[0057] Since the stored granular materials may have the problem of agglomeration, a screw conveying mechanism was used before, which can squeeze and crush the agglomerates to a certain extent during the feeding process to make them smaller, so that it will not affect the subsequent mixing too much. However, if gas pressure is used for feeding, if the agglomerates are too large and heavy, the gas pressure is not enough to send them into the reaction mixing barrel. Therefore, the powder needs to be processed before feeding. The processing here is to first use the extrusion and crushing bin to break up the large agglomerates in the material, and then use the vibration and screening function of the vibrating screen to further disperse the agglomerated materials, which effectively ensures the transportation of the materials. The heating mechanism set in the feed hopper bin can bake out the moisture in the relatively moist materials, so that the materials are lighter, drier and easier to be transported by air pressure. The extrusion and crushing bin, the vibration screening bin and the feed hopper bin can all be set in the pre-dug equipment pit underground, leaving only the feed port of the extrusion and crushing bin on the ground for manual shoveling and feeding. Of course, if it is not convenient to dig the equipment pit, a crane can be used to add materials. Specific embodiment 5:

[0059] The present embodiment further illustrates the vibration screening bin 16 on the basis of the specific embodiment 4, wherein a vibration type scattering screen plate 6 is provided in the inner cavity of the vibration screening bin 16, and the vibration type scattering screen plate 6 comprises a screen plate body 61 and a top surface scattering mechanism 62, wherein the screen plate body 61 is composed of a frame body 611 and a conical sieve hole structure 612, wherein the conical sieve hole structure 612 is evenly arranged on the inner side of the frame body 611, and the cone tip of the conical sieve hole structure 612 is located at the bottom, and the top surface scattering mechanism 62 is a scattering short column, wherein the scattering short column is vertically arranged on the supporting surface at the top of the conical sieve hole structure 612, and horizontal auxiliary scattering pillars are evenly arranged on the upper part of the scattering short column.

[0060] The vibrating breaking screen plate in the vibrating screening bin can effectively break up the materials, and is more suitable for solving the problem of material agglomeration than ordinary screen plates. Specific embodiment 6:

[0062] This embodiment further illustrates the rotating drum 41 on the basis of the specific embodiment 1. The rotating drum 41 includes a tooth row transmission part, a bearing connection part and a throwing plate connection part which are arranged in sequence from top to bottom. The rotating drum 41 is rotatably connected to the top of the reaction stirring barrel through the bearing connection part. The tooth row transmission part is located outside the reaction stirring barrel 2. A circle of transmission tooth rows 7 is arranged around the barrel body at the tooth row transmission part. The transmission tooth row 7 is connected to a driving gear, and the driving gear is arranged at one end of the output shaft of the throwing mechanism rotating motor at the top of the reaction stirring barrel 2.

[0063] The rotating motor can well control the rotation of the drum. Specific embodiment 7:

[0065] This embodiment further illustrates the throwing plate 42 on the basis of the specific embodiment 1. The top surface of the throwing plate 42 is provided with an upward extension portion 8. The upper portion of the upward extension portion 8 surrounds the outside of the rotating drum 41. The upward extension portion 8 extends upward to a position close to the top surface of the inner cavity of the reaction stirring barrel 2. An air outlet opening 9 is also left between the upward extension portion 8 and the top surface of the inner cavity of the reaction stirring barrel 2.

[0066] The upward extension portion arranged on the top surface of the throwing disc can effectively protect the bearing between the rotating drum and the reaction stirring barrel, prevent the asphalt fume from directly rushing in and adhering to it after the asphalt fume rushes in, and finally forming oil scale, which affects its rotation function. The wind that sends the material into the reaction stirring barrel runs out from the air outlet gap between the throwing disc and the rotating drum, and then runs out from the air outlet gap between the upward extension portion and the top surface of the inner cavity of the reaction stirring barrel. This part of the wind can effectively prevent the asphalt fume from entering the range covered by the upper extension portion, thereby protecting the bearing between the rotating drum and the reaction stirring barrel, and the gas in the reaction stirring barrel will eventually be sent out of the reaction stirring barrel through the dust collector. Specific embodiment 8:

[0068] This embodiment further illustrates the material throwing hole 423 on the basis of the specific embodiment 1. The lower part of the outer end of the material throwing hole 423 is an outward arc-shaped protruding smoke prevention portion 424.

[0069] Due to the nature of asphalt fume, it is easy to adhere to the surface of objects, which will form grease over time. Therefore, an outward arc-shaped protrusion to prevent the fume from directly impacting the object is provided. This can block most of the fume and prevent the outer end of the throwing hole from quickly accumulating a large amount of grease, which would affect the throwing effect. Specific embodiment 9:

[0071] This embodiment further illustrates the reaction stirring barrel 2 on the basis of the specific embodiment 1. The top surface of the reaction stirring barrel 2 is also provided with an artificial addition port for other auxiliary materials. The bottom of the artificial addition port for other auxiliary materials is provided with an "L"-shaped feeding barrel 10. The bottom surface of the "L"-shaped feeding barrel 10 is a material discharge slope. The middle part of the barrel wall of the vertical section of the "L"-shaped feeding barrel 10 is provided with a smoke absorption port, and the smoke absorption port is connected to the exhaust fan through a smoke absorption pipe.

[0072] The artificial addition port for other auxiliary materials can facilitate the operator to manually add some modified auxiliary materials, which is available in the field. However, when the existing artificial addition port for other auxiliary materials is in use, the asphalt fume will directly rush up to the artificial addition port for other auxiliary materials, and the unloading environment for operators is poor. In order to solve this problem, an "L"-shaped feeding barrel is set, and a smoke absorption port is also set in the middle of the barrel wall of the vertical section of the "L"-shaped feeding barrel. When unloading, the smoke that directly rushes up can be blocked, and the smoke that enters the "L"-shaped feeding barrel from the side can be sucked away by the smoke absorption port, which effectively improves the unloading environment for workers. The unloading slope at the bottom of the "L"-shaped feeding barrel can make the material fall smoothly. Specific embodiment 10:

[0074] This embodiment further illustrates the smoke absorption port on the basis of the specific embodiment 9, and a filter screen is provided at the smoke absorption port.

[0075] Prevent additives from entering the flue gas absorption port.

[0076] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An asphalt modified batching system, comprising a modified asphalt delivery pipeline, a modified material delivery mechanism (1) and a reaction stirring barrel (2), wherein the modified asphalt delivery pipeline is arranged at the bottom of the reaction stirring barrel (2), and the discharge port of the modified material delivery mechanism (1) is connected to the feed port arranged at the top of the reaction stirring barrel (2), characterized in that: The bottom of the feed end of the modified asphalt delivery pipeline is provided with an interception sampling mechanism (3). The modified material delivery mechanism (1) comprises a blower (11), a feeder (12) and a delivery pipeline (13). The blower (11) is connected to the feeder (12). A feed hopper (14) is provided on the top of the feeder (12). The output end of the feeder (12) is connected to the feed inlet on the top of the reaction stirring barrel (2) through the delivery pipeline (13). A rotary uniform material throwing mechanism (4) is provided at the feed inlet on the top of the reaction stirring barrel (2). The rotary uniform material throwing mechanism (4) comprises a rotating drum (41) and a throwing disc (42). The top of the rotating drum (41) is rotatably connected to the top plate of the reaction stirring barrel (2). The throwing disc (42) is arranged at the bottom of the rotating drum (41). ) is connected to the rotating drum (41) through a connecting rod (43), an air outlet opening (9) is left between the throwing disc (42) and the rotating drum (41), the throwing disc (42) is conical, and the two side edges of the longitudinal section of the throwing disc (42) are both stepped, the throwing disc (42) is composed of a longitudinal portion (421) and a horizontal portion (422) arranged alternately, the connection between the bottom of the longitudinal portion (421) and the outer end of the horizontal portion (422) is an arc-shaped transition surface, the longitudinal portion (421) of the throwing disc (42) is uniformly provided with horizontal throwing holes (423), a viscous material stirring mechanism (21) is provided in the reaction stirring barrel (2), and the top of the viscous material stirring mechanism (21) passes through the top of the reaction stirring barrel (2) upward and is connected to the output shaft of a rotating motor (22) arranged on the top surface of the reaction stirring barrel (2); An extrusion crushing bin (15) and a vibration screening bin (16) are sequentially arranged above the feed hopper bin (14) from top to bottom. The discharge port of the extrusion crushing bin (15) and the feed port of the vibration screening bin (16), as well as the discharge port of the vibration screening bin (16) and the feed port of the feed hopper bin (14) are connected via a flexible sleeve structure (5). Horizontal extrusion rollers are arranged side by side in the extrusion crushing bin (15), and crushing short columns are arranged on the surface of the horizontal extrusion rollers. A vibration motor is arranged outside the vibration screening bin (16). Spring connectors are arranged at the four corners of the bottom surface of the shell of the vibration screening bin (16). The bottom of the vibration screening bin (16) is connected to a support plate, and the support plate is connected to a vertical support rod. A heating mechanism is arranged on the wall of the feed hopper bin (14), and a water vapor discharge port is arranged at the top of the feed hopper bin (14); A vibrating scattering screen plate (6) is provided in the inner cavity of the vibrating screening bin (16), the vibrating scattering screen plate (6) comprising a screen plate body (61) and a top surface scattering mechanism (62), the screen plate body (61) comprising a frame (611) and a conical sieve hole structure (612), the conical sieve hole structure (612) being evenly arranged inside the frame (611), the conical tip of the conical sieve hole structure (612) being located at the bottom, the top surface scattering mechanism (62) being a scattering short column, the scattering short column being vertically arranged at the support surface at the top of the conical sieve hole structure (612), and horizontal auxiliary scattering pillars being evenly arranged on the upper part of the scattering short column; The top surface of the throwing plate (42) is provided with an upwardly extending portion (8), the upper portion of which surrounds the outside of the rotating drum (41), and the upwardly extending portion (8) extends upwardly to a position close to the top surface of the inner cavity of the reaction stirring barrel (2), and an air outlet opening (9) is also left between the upwardly extending portion (8) and the top surface of the inner cavity of the reaction stirring barrel (2).

2. The asphalt modified batching system according to claim 1, characterized in that: The interception sampling mechanism (3) comprises a sampling barrel (31), the sampling barrel (31) being threadedly connected to the asphalt conveying pipeline, a sampling channel (311) being provided in the middle of the sampling barrel (31), a sampling port (312) being provided on one side of the upper portion of the sampling channel (311), and a limiting ring (32) being provided on the outer wall of the lower portion of the sampling barrel (31).

3. The asphalt modified batching system according to claim 2, characterized in that: The sampling channel wall at the rear end of the sampling port (312) protrudes forward to form a diversion surface (313), and the diversion surface (313) is arranged obliquely from bottom to top and forward.

4. The asphalt modified batching system according to claim 1, characterized in that: The rotating drum (41) comprises a tooth row transmission part, a bearing connection part and a throwing plate connection part which are arranged in sequence from top to bottom. The rotating drum (41) is rotatably connected to the top of the reaction stirring barrel via the bearing connection part. The tooth row transmission part is located outside the reaction stirring barrel (2). A circle of transmission tooth rows (7) is arranged around the barrel body at the tooth row transmission part. The transmission tooth row (7) is connected to a driving gear. The driving gear is arranged at one end of an output shaft of a rotating motor of a throwing mechanism at the top of the reaction stirring barrel (2).

5. The asphalt modified batching system according to claim 1, characterized in that: The lower portion of the outer end of the material throwing through hole (423) is an outwardly arc-shaped protruding smoke-proof straight-impact portion (424).

6. The asphalt modified batching system according to claim 1, characterized in that: The top surface of the reaction stirring barrel (2) is also provided with an artificial addition port for other auxiliary materials, and an "L"-shaped feeding cylinder (10) is provided at the bottom of the artificial addition port for other auxiliary materials. The bottom surface of the "L"-shaped feeding cylinder (10) is a material discharge slope, and a smoke absorption port is provided in the middle of the cylinder wall of the vertical section of the "L"-shaped feeding cylinder (10), and the smoke absorption port is connected to the exhaust fan through a smoke absorption pipe.

7. The asphalt modified batching system according to claim 6, characterized in that: A filter screen is arranged at the smoke absorption port.

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