A composite modified asphalt production system

Abstract

This invention relates to the field of asphalt production technology, and more specifically, to a composite modified asphalt production system. The system includes a grinding cylinder with open top and bottom. A grinding mechanism is connected to the upper part of the grinding cylinder, and both the grinding cylinder and the grinding mechanism are mounted on a vertical frame. A discharge screening mechanism is connected to the lower part of the grinding cylinder. The discharge screening mechanism is connected to one end of a linkage mechanism, which is connected to the vertical frame. The other end of the linkage mechanism is connected to the grinding mechanism. This system is mainly used for grinding and processing mixtures of asphalt and modifiers. The relative position of the internal grinding mechanism and the grinding cylinder is adjustable, allowing for the formation of different grinding zones to achieve grinding of materials of varying fineness.

Description

Technical Field

[0001] This invention relates to the field of asphalt production technology, and more specifically, to a composite modified asphalt production system. Background Technology

[0002] Modified asphalt is an asphalt binder made by adding modifiers such as rubber, resin, polymers, finely ground rubber powder, or other fillers, or by subjecting the asphalt to mild oxidation processing, thereby improving the properties of asphalt or asphalt mixtures. It is currently widely used in road construction, waterproof membranes, and coatings. Grinding is an indispensable process in the production of modified asphalt. During grinding, because the material is ground in batches, some particles inevitably remain insufficiently ground. In existing composite modified asphalt production systems, the material is directly discharged after grinding, failing to separate materials that do not meet the grinding requirements. These insufficiently ground particles can lead to problems such as poor asphalt adhesion or easy detachment during use. Summary of the Invention

[0003] The purpose of this invention is to provide a composite modified asphalt production system that can effectively solve the problems in the prior art.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A composite modified asphalt production system includes a grinding cylinder with open top and bottom. A grinding mechanism is connected to the upper part of the grinding cylinder. Both the grinding cylinder and the grinding mechanism are mounted on a vertical frame. A discharge screening mechanism is connected to the lower part of the grinding cylinder. One end of the discharge screening mechanism is connected to a linkage mechanism, which is connected to the vertical frame. The other end of the linkage mechanism is connected to the grinding mechanism.

[0006] Optionally, the grinding cylinder includes an inverted conical feed cylinder, an inverted conical abrasive cylinder, and a straight drop cylinder, which are fixed from top to bottom. A heating jacket is fitted on the outer wall of the inverted conical abrasive cylinder, with a medium inlet at the lower end of one side of the heating jacket and a medium outlet at the upper end of one side of the heating jacket.

[0007] Optionally, the grinding mechanism includes an electric push rod fixed on a stand, the movable end of the electric push rod being connected to a movable frame plate, a power motor being fixed on the movable frame plate, the output shaft of the power motor being driven and connected to a central shaft, and an inverted conical grinding roller being connected to the central shaft. The diameter of one end of the inverted conical grinding roller is smaller than the diameter of the straight drop cylinder, and the diameter of the other end of the inverted conical grinding roller is larger than the diameter of the straight drop cylinder.

[0008] Optionally, the inverted conical grinding roller includes a grinding roller body and a material control roller body. The grinding roller body is fixed on a central shaft, and the material control roller body is slidably fitted on the central shaft. A plurality of first inserts are evenly arranged around the top of the grinding roller body, and the plurality of first inserts can be inserted into a plurality of first slots at the bottom of the material control roller body. The material control roller body is provided with a spiral material control groove, so as to guide the material falling into the inverted conical grinding cylinder to the grinding roller body through the cooperation of the spiral material control groove and the inverted conical grinding cylinder.

[0009] Optionally, the top surface of the grinding roller is a conical surface, and the bottom surface of the control roller is provided with a conical groove that matches the conical surface.

[0010] Optionally, multiple upper slides are evenly arranged around the top of the control roller, and a scraping mechanism is connected in each upper slide. The scraping mechanism includes a tension spring fixed to the bottom surface inside the upper slide. The upper end of the tension spring is fixed to the lower end of a multi-faceted slide rod. The upper end of the multi-faceted slide rod is fixed to one end of a curved connecting rod. The other end of the curved connecting rod is fixed to the scraper body. The scraper body slides on the inner wall of the inverted conical feed cylinder. A baffle plate is fixed to the outer end of the scraper body.

[0011] Optionally, the discharge screening mechanism includes a circular screen basket and a circular screen plate. Both the circular screen basket and the circular screen plate are provided with screening holes. The top of the circular screen basket is open, and the bottom of the circular screen basket is fixed with the circular screen plate. The circular screen basket is movably connected to the inside of the direct-fall cylinder. The center of the circular screen plate is provided with a central hole for the central shaft to pass through. A limiting block is fixed at the bottom of the central shaft, and multiple second insert rods are fixed on the limiting block. The multiple second insert rods can be inserted into multiple second insert holes in the circular screen plate. The circular screen basket is connected to one end of the linkage mechanism.

[0012] Optionally, the linkage mechanism includes a linkage plate, one end of which rotates at the lower end of the annular screen basket, and the other end of which rotates to connect to one end of a transmission link. The other end of the transmission link is rotated to connect to the lower end of a transmission rack. The middle part of the transmission rack slides on the vertical frame. The transmission rack is connected to a driven rack via a reversing transmission wheel set. The middle part of the driven rack slides on the vertical frame. A lifting frame is fixed at the top of the driven rack. The lifting frame rotates at the upper end of the lifting pipe. The lifting pipe is sleeved on the central shaft. The lower end of the lifting pipe is rotatably connected to the control roller.

[0013] Optionally, the linkage mechanism further includes a limiting horizontal plate fixed on the transmission rack, the limiting horizontal plate slides in the middle of the limiting screw, the lower end of the limiting screw is fixed on the upright, a limiting compression spring is sleeved on the rod between the upright and the limiting horizontal plate, and an adjusting nut is threaded on the limiting screw, the adjusting nut is locked on the top surface of the limiting horizontal plate.

[0014] Optionally, the reversing transmission wheel set includes a wheel axle that rotates on a stand, a first gear fixed on the wheel axle, the outer side of the first gear meshing with a transmission rack; a second gear rotatably connected to the wheel axle, the inner side of the second gear meshing with a driven rack; a collar fixed on one side of the second gear, the collar being sleeved on the wheel axle; multiple slots evenly arranged around the wheel axle; a threaded insertion screw is threaded onto the collar, and the insertion screw can be inserted into any slot.

[0015] The beneficial effects of this invention are as follows: The composite modified asphalt production system of this invention can effectively solve the problems in the prior art; it is mainly used for grinding and processing asphalt and modifier mixtures. The relative position of the internal grinding mechanism and the grinding cylinder is adjustable, which can form grinding zones of different ranges, thereby performing grinding of materials of different fineness; it is equipped with an internal discharge screening mechanism, which can screen out materials that do not meet the requirements after grinding, so as to classify the materials and prevent insufficiently ground particles from causing problems such as asphalt not adhering tightly or easily falling off.

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 Overall illustration provided for embodiments of the present invention Figure 1 ;

[0019] Figure 2 Overall illustration provided for embodiments of the present invention Figure 2 ;

[0020] Figure 3 This is an overall structural cross-sectional view provided for an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the grinding cylinder provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the grinding mechanism provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the inverted conical grinding roller provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the grinding roller body provided in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the control roller body provided in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the discharge screening mechanism provided in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the linkage mechanism provided in an embodiment of the present invention;

[0028] Figure 11 This is a schematic diagram of the reversing drive wheel assembly provided in an embodiment of the present invention;

[0029] Figure 12 This is a schematic diagram of the scraping mechanism provided in an embodiment of the present invention.

[0030] Icons: Grinding cylinder 1; Inverted conical feed cylinder 101; Inverted conical grinding cylinder 102; Straight drop cylinder 103; Grinding mechanism 2; Electric push rod 201; Movable frame plate 202; Power motor 203; Central shaft 204; Inverted conical grinding roller 205; Grinding roller body 205a; Control roller body 205b; First insertion rod 205c; Spiral control groove 205d; Limiting block 206; Second insertion rod 207; Vertical frame 3; Discharge screening mechanism 4; Circular screen basket 401; Circular screen plate 402; Linkage mechanism Component 5; linkage plate 501; transmission connecting rod 502; transmission rack 503; reversing transmission wheel set 504; wheel axle 504a; first gear 504b; second gear 504c; collar 504d; plug-in screw 504e; driven rack 505; lifting bracket 506; lifting pipe 507; limiting horizontal plate 508; limiting screw 509; limiting compression spring 510; adjusting nut 511; scraping mechanism 6; tension spring 601; multi-faceted slide bar 602; bending connecting rod 603; scraper body 604. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0035] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of this application, should still fall within the scope of the technical content disclosed in this application. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this application.

[0036] The following is in conjunction with the appendix Figure 1-12 The present invention will be described in further detail below.

[0037] Example 1

[0038] like Figure 1-12As shown, a composite modified asphalt production system includes a grinding cylinder 1, which is open at both the top and bottom. A grinding mechanism 2 is connected to the upper part of the grinding cylinder 1. Both the grinding cylinder 1 and the grinding mechanism 2 are mounted on a stand 3. A discharge screening mechanism 4 is connected to the lower part of the grinding cylinder 1. The discharge screening mechanism 4 is connected to one end of a linkage mechanism 5, which is connected to the stand 3. The other end of the linkage mechanism 5 is connected to the grinding mechanism 2.

[0039] The present invention discloses a composite modified asphalt production system. During the production and processing of composite modified asphalt, the grinding mechanism 2 is first adjusted to extend into the grinding cylinder 1, thereby creating grinding zones of varying sizes to facilitate grinding of materials of different fineness. Then, the mixture of asphalt and modifier is fed into the grinding cylinder 1, and the grinding mechanism 2 is powered on. After startup, the grinding mechanism 2 grinds the mixture of asphalt and modifier through its interaction with the inner wall of the grinding cylinder 1. Materials meeting the requirements after grinding are screened out by the discharge screening mechanism 4, while materials not meeting the requirements are blocked inside the discharge screening mechanism 4. This facilitates material grading and prevents insufficiently ground particles from causing problems such as loose asphalt adhesion or easy detachment.

[0040] Example 2

[0041] like Figure 1-12 As shown, the grinding cylinder 1 includes an inverted conical feed cylinder 101, an inverted conical abrasive cylinder 102, and a straight drop cylinder 103, which are fixed from top to bottom. A heating jacket is fitted on the outer wall of the inverted conical abrasive cylinder 102. A medium inlet is provided at the lower end of one side of the heating jacket, and a medium outlet is provided at the upper end of one side of the heating jacket.

[0042] The straight-falling material cylinder 103 has a discharge port on its side, and a sliding cover is connected to the discharge port. The sliding cover is fixed to one end of the opening and closing cylinder, and the other end of the opening and closing cylinder is fixed to the straight-falling material cylinder 103.

[0043] The minimum diameter of the inverted conical feed cylinder 101 is the same as the maximum diameter of the inverted conical grinding cylinder 102. The inverted conical feed cylinder 101 is used to better receive materials, making it easier for materials to fall into the inverted conical grinding cylinder 102. The inverted conical grinding cylinder 102 cooperates with the grinding mechanism 2 extending into its interior to grind the materials. Different grinding fineness can be adjusted by adjusting the depth of the grinding mechanism 2 extending into its interior. The ground materials can fall into the straight drop cylinder 103, and then be screened by the discharge screening mechanism 4. Materials that meet the grinding requirements can be directly discharged to the outside for further processing and use. Materials that do not meet the requirements can be discharged through the discharge port for further grinding and processing.

[0044] Example 3

[0045] like Figure 1-12As shown, the grinding mechanism 2 includes an electric push rod 201 fixed on the upright frame 3. The movable end of the electric push rod 201 is connected to a movable frame plate 202. A power motor 203 is fixed on the movable frame plate 202. The output shaft of the power motor 203 is connected to a central shaft 204. The central shaft 204 rotates on the movable frame plate 202. An inverted conical grinding roller 205 is connected to the central shaft 204. The diameter of one end of the inverted conical grinding roller 205 is smaller than the diameter of the straight drop cylinder 103, and the diameter of the other end of the inverted conical grinding roller 205 is larger than the diameter of the straight drop cylinder 103.

[0046] In use, the grinding mechanism 2 can grind the mixture of asphalt and modifier by cooperating with the inverted conical grinding roller 205 and the inverted conical abrasive cylinder 102. During grinding, the depth to which the inverted conical grinding roller 205 is inserted into the inverted conical abrasive cylinder 102 can be adjusted to form grinding areas of different sizes between the inverted conical grinding roller 205 and the inverted conical abrasive cylinder 102, thereby performing grinding processing on the mixture of asphalt and modifier with different fineness. The inverted conical grinding roller 205 is inserted into the inverted conical abrasive cylinder 102. The depth inside 02 can be controlled by electric push rod 201. After the electric push rod 201 is powered on, it can drive the movable frame plate 202 to move up and down. There are two or more electric push rods 201 to improve the stability when it drives the movable frame plate 202 to move. When the movable frame plate 202 moves, it can drive the power motor 203 and the central shaft 204 to move up and down. In turn, the position of the inverted conical grinding roller 205 is adjusted by the central shaft 204, thereby controlling the depth of the inverted conical grinding roller 205 inserted into the inverted conical abrasive cylinder 102.

[0047] Example 4

[0048] like Figure 1-12 As shown, the inverted conical grinding roller 205 includes a grinding roller body 205a and a material control roller body 205b. The grinding roller body 205a is fixed on the central shaft 204, and the material control roller body 205b is slidably fitted on the central shaft 204. A plurality of first insert rods 205c are evenly arranged around the top of the grinding roller body 205a, and the plurality of first insert rods 205c can be inserted into a plurality of first slots at the bottom of the material control roller body 205b. The material control roller body 205b is provided with a spiral material control groove 205d, so that the material falling into the inverted conical grinding cylinder 102 is guided to the grinding roller body 205a through the cooperation of the spiral material control groove 205d and the inverted conical grinding cylinder 102.

[0049] The grinding roller body 205a inside the inverted conical grinding roller 205 is used to grind the mixture of asphalt and modifier to different finenesses in conjunction with the inner wall of the inverted conical abrasive cylinder 102. During grinding, the power motor 203 rotates, driving the central shaft 204 to rotate. When the central shaft 204 rotates, it can adjust the grinding roller body 205a to rotate around its own axis. By adjusting the gap between the grinding roller body 205a and the inner wall of the inverted conical abrasive cylinder 102, the grinding fineness can be adjusted. Multiple first inserts 205c of the grinding roller body 205a are inserted into multiple control roller bodies 205b. In the first slot, the rotation of the grinding roller 205a can drive the rotation of the control roller 205b. The control roller 205b is provided with a spiral control groove 205d. Through the cooperation between the spiral control groove 205d and the inner wall of the inverted conical grinding cylinder 102, the material falling into the inverted conical grinding cylinder 102 is guided to the grinding roller 205a. This makes it easier for the material to be ground to move between the grinding roller 205a and the inverted conical grinding cylinder 102 for grinding under its own gravity and the thrust of the spiral control groove 205d and the inner wall of the inverted conical grinding cylinder 102, thus solving the problem of low material conveying efficiency.

[0050] Example 5

[0051] like Figure 1-12 As shown, the top of the control roller 205b is uniformly surrounded by multiple upper slide tracks. Each upper slide track is connected to a scraping mechanism 6. The scraping mechanism 6 includes a tension spring 601 fixed to the bottom surface inside the upper slide track. The upper end of the tension spring 601 is fixed to the lower end of the multi-faceted slide rod 602. The upper end of the multi-faceted slide rod 602 is fixed to one end of the bent connecting rod 603. The other end of the bent connecting rod 603 is fixed to the scraper body 604. The scraper body 604 is slidably fitted on the inner wall of the inverted conical feed cylinder 101. A baffle plate 605 is fixed to the outer end of the scraper body 604.

[0052] When the control roller 205b rotates, it can drive multiple scraping mechanisms 6 to rotate and circle, thereby scraping off the material on the inner wall of the inverted conical feed cylinder 101, improving the downward material falling effect and improving grinding efficiency. Moreover, the structure of the scraping mechanism 6 is designed so that it is not affected by the depth of the grinding mechanism 2 extending into the inverted conical grinding cylinder 102. When the grinding mechanism 2 extends into the inverted conical grinding cylinder 102, it can stretch multiple tension springs 601. The multi-faceted slide bar 602 slides in the upper slide rail of the control roller 205b, so that the scraper body 604 is kept in contact with the inner wall of the inverted conical feed cylinder 101 under the elastic force of the tension spring 601, which facilitates the scraping off of the material on the inner wall of the inverted conical feed cylinder 101. A baffle plate 605 is fixed to the outer end of the scraper body 604 to prevent the material from being scraped out of the inverted conical feed cylinder 101 when scraping off the material.

[0053] Example 6

[0054] like Figure 1-12 As shown, the discharge screening mechanism 4 includes a circular screen basket 401 and a circular screen plate 402. Both the circular screen basket 401 and the circular screen plate 402 are provided with screening holes. The top of the circular screen basket 401 is open, and the bottom of the circular screen basket 401 is fixed with the circular screen plate 402. The circular screen basket 401 is movably connected to the inside of the direct-fall cylinder 103. The center of the circular screen plate 402 is provided with a central hole for the central shaft 204 to pass through. The bottom of the central shaft 204 is fixed with a limiting block 206, and multiple second insert rods 207 are fixed on the limiting block 206. The multiple second insert rods 207 can be inserted into the multiple second insert holes of the circular screen plate 402. The circular screen basket 401 is connected to one end of the linkage mechanism 5.

[0055] Both the annular screen basket 401 and the circular screen plate 402 are provided with screening holes for filtering and screening the ground materials. When the material in the annular screen basket 401 and the circular screen plate 402 reaches a preset weight, the annular screen basket 401 and the circular screen plate 402 can move downward under the action of gravity. At this time, when the circular screen plate 402 moves downward until the multiple second insert rods 207 are inserted into the multiple second insert holes, the rotation of the central shaft 204 can drive the circular screen plate 402 and the annular screen basket 401 to rotate through the cooperation of the limiting block 206 and the multiple second insert rods 207, which facilitates the motion screening and prevents the material accumulated in the annular screen basket 401 and the circular screen plate 402 from being unable to be screened.

[0056] The linkage mechanism 5 includes a linkage plate 501. One end of the linkage plate 501 rotates at the lower end of the annular screen basket 401, and the other end of the linkage plate 501 is rotatably connected to one end of the transmission link 502. The other end of the transmission link 502 is rotatably connected to the lower end of the transmission rack 503. The middle part of the transmission rack 503 slides on the upright frame 3. The transmission rack 503 is connected to the driven rack 505 through the reversing transmission wheel set 504. The middle part of the driven rack 505 slides on the upright frame 3. The top of the driven rack 505 is fixed with a lifting frame 506. The lifting frame 506 rotates on the upper end of the lifting pipe 507. The lifting pipe 507 is sleeved on the central shaft 204, and the lower end of the lifting pipe 507 is rotatably connected to the control roller body 205b.

[0057] When the material inside the annular screening basket 401 and the circular screening plate 402 moves downward under the action of gravity, it can drive the linkage plate 501 to move downward. When the linkage plate 501 moves downward, it can drive one end of the transmission connecting rod 502 to move downward. The other end of the transmission connecting rod 502 drives the transmission rack 503 to move downward. The transmission rack 503 drives the driven rack 505 to slide upward on the upright frame 3 through the direction-changing transmission wheel set 504. The driven rack 505 controls the material through the cooperation of the lifting frame 506 and the lifting pipe 507. The roller 205b moves upward, causing the control roller 205b to disengage from the multiple first insert rods 205c. At this time, when the grinding roller 205a rotates, the control roller 205b stops rotating. The control roller 205b cannot rotate and stops feeding materials through the cooperation between the spiral control groove 205d and the inner wall of the inverted conical grinding cylinder 102. This facilitates the rapid screening of materials inside the annular screen basket 401 and the circular screen plate 402, preventing excessive material accumulation inside the annular screen basket 401 and the circular screen plate 402 from making screening impossible.

[0058] The top surface of the grinding roller 205a is conical, and the bottom surface of the control roller 205b is provided with a conical groove that mates with the conical surface. The conical surface design makes it difficult for material to accumulate on the grinding roller 205a after the control roller 205b and the grinding roller 205a are separated, making it easier for the control roller 205b and the grinding roller 205a to be reassembled.

[0059] The linkage mechanism 5 also includes a limiting horizontal plate 508 fixed on the transmission rack 503. The limiting horizontal plate 508 slides in the middle of the limiting screw 509. The lower end of the limiting screw 509 is fixed on the upright 3. A limiting compression spring 510 is sleeved on the rod between the upright 3 and the limiting horizontal plate 508. An adjusting nut 511 is threaded onto the limiting screw 509. The adjusting nut 511 is locked onto the top surface of the limiting horizontal plate 508.

[0060] When the transmission rack 503 moves downward, it drives the limiting horizontal plate 508 to move downward and compresses the limiting compression spring 510. The limiting compression spring 510 is designed to limit the initial position of the annular screen basket 401 and the circular screen plate 402.

[0061] The reversing transmission wheel assembly 504 includes a wheel axle 504a rotatably mounted on the support frame 3, a first gear 504b fixed on the wheel axle 504a, the outer side of the first gear 504b meshing with the transmission rack 503; a second gear 504c rotatably connected to the wheel axle 504a, the inner side of the second gear 504c meshing with the driven rack 505, a collar 504d fixed on one side of the second gear 504c, the collar 504d being sleeved on the wheel axle 504a, a plurality of slots evenly arranged around the wheel axle 504a, and a threaded insertion screw 504e being threaded into the collar 504d, the insertion screw 504e being able to be inserted into any slot.

[0062] The reversing transmission wheel assembly 504 is structurally designed so that the transmission rack 503 and the driven rack 505 can both transmit and stop transmission. When it is necessary to control the transmission connection between the transmission rack 503 and the driven rack 505, the control insertion screw 504e is inserted into the slot. At this time, the rotation of the transmission rack 503 can drive the first gear 504b to rotate. When the first gear 504b rotates, it can drive the second gear 504c to rotate through the wheel axle 504a. When the second gear 504c rotates, it meshes with the driven rack 505 to move in a different direction than the transmission rack 503. When it is not necessary to control the transmission connection between the drive rack 503 and the driven rack 505, it is sufficient to control the insertion screw 504e to disengage from the slot. This is especially applicable when adjusting the depth of the grinding mechanism 2 extending into the inverted conical abrasive cylinder 102. At this time, when the grinding mechanism 2 moves, it drives the driven rack 505 to move, and the movement of the driven rack 505 drives the second gear 504c to rotate. Since the insertion screw 504e disengages from the slot, the rotation of the second gear 504c cannot drive the axle 504a to rotate, and ultimately will not affect the position of the annular screen basket 401 and the circular screen plate 402.

[0063] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

[0064] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A composite modified asphalt production system, characterized in that: The grinding cylinder (1) is open at both the top and bottom. The grinding mechanism (2) is connected inside the grinding cylinder (1). Both the grinding cylinder (1) and the grinding mechanism (2) are mounted on the upright frame (3). The discharge screening mechanism (4) is connected to the lower part of the grinding cylinder (1). The discharge screening mechanism (4) is connected to one end of the linkage mechanism (5). The linkage mechanism (5) is connected to the upright frame (3). The other end of the linkage mechanism (5) is connected to the grinding mechanism (2). The grinding mechanism includes an inverted conical grinding roller (205), which includes a grinding roller body (205a) and a material control roller body (205b). The grinding roller body (205a) is fixed on a central shaft (204), and the material control roller body (205b) is slidably fitted on the central shaft (204). A plurality of first inserts (205c) are evenly arranged around the top of the grinding roller body (205a), and the plurality of first inserts (205c) can be inserted into a plurality of first slots at the bottom of the material control roller body (205b). The material control roller body (205b) is provided with a spiral material control groove (205d) so that the material falling into the inverted conical grinding cylinder (102) is guided to the grinding roller body (205a) through the cooperation of the spiral material control groove (205d) and the inverted conical grinding cylinder (102). The discharge screening mechanism (4) includes a circular screen basket (401) and a circular screen plate (402). The top of the circular screen basket (401) is open, and the bottom of the circular screen basket (401) is fixed with the circular screen plate (402). The circular screen basket (401) is movably connected to the inside of the straight-falling cylinder (103). The center of the circular screen plate (402) is provided with a central hole for the central shaft (204) to pass through. The bottom of the central shaft (204) is fixed with a limiting block (206). Multiple second inserts (207) are fixed on the limiting block (206). The multiple second inserts (207) can be inserted into multiple second inserts in the circular screen plate (402). The circular screen basket (401) is connected to one end of the linkage mechanism (5). The linkage mechanism (5) includes a linkage plate (501), one end of which rotates at the lower end of the annular screen basket (401), and the other end of which rotates to connect to one end of the transmission link (502). The other end of the transmission link (502) rotates at the lower end of the transmission rack (503). The middle part of the transmission rack (503) slides on the upright frame (3). The transmission rack (503) is connected to the driven rack (505) through the reversing transmission wheel set (504). The middle part of the driven rack (505) slides on the upright frame (3). The top of the driven rack (505) is fixed with a lifting frame (506). The lifting frame (506) rotates on the upper end of the lifting pipe (507). The lifting pipe (507) is sleeved on the central shaft (204). The lower end of the lifting pipe (507) is rotatably connected to the control roller body (205b). When the material in the annular screen basket and the circular screen plate reaches the preset weight, the circular screen plate moves downward until multiple second inserts are inserted into multiple second holes. The central shaft rotates, and through the cooperation of the limiting block and multiple second inserts, it drives the circular screen plate and the annular screen basket to rotate. When the material inside the annular screen basket and the circular screen plate moves downward under the action of gravity, it drives the linkage plate to move downward. When the linkage plate moves downward, it drives one end of the transmission connecting rod to move downward, and the other end of the transmission connecting rod drives the transmission rack to move downward. The transmission rack drives the driven rack to slide upward on the upright frame through the transmission wheel set. The driven rack drives the control roller to move upward through the cooperation of the lifting frame and the lifting pipe, so that the control roller disengages from multiple first inserts. At this time, when the grinding roller rotates, the control roller stops rotating. The control roller cannot rotate and stops feeding material through the cooperation of the spiral control groove and the inner wall of the inverted conical grinding cylinder.

2. The composite modified asphalt production system according to claim 1, characterized in that: The grinding cylinder (1) includes an inverted conical feed cylinder (101), an inverted conical grinding cylinder (102), and a straight drop cylinder (103) fixed from top to bottom; a heating jacket is fitted on the outer wall of the inverted conical grinding cylinder (102), a medium inlet is provided at the lower end of one side of the heating jacket, and a medium outlet is provided at the upper end of one side of the heating jacket.

3. The composite modified asphalt production system according to claim 2, characterized in that: The grinding mechanism (2) includes an electric push rod (201) fixed on a stand (3). The movable end of the electric push rod (201) is connected to a movable frame plate (202). A power motor (203) is fixed on the movable frame plate (202). The output shaft of the power motor (203) is connected to a central shaft (204). An inverted conical grinding roller (205) is connected to the central shaft (204). The diameter of one end of the inverted conical grinding roller (205) is smaller than the diameter of the straight drop cylinder (103), and the diameter of the other end of the inverted conical grinding roller (205) is larger than the diameter of the straight drop cylinder (103).

4. The composite modified asphalt production system according to claim 3, characterized in that: The top surface of the grinding roller (205a) is a conical surface, and the bottom surface of the control roller (205b) is provided with a conical groove that matches the conical surface.

5. A composite modified asphalt production system according to claim 4, characterized in that: The top of the control roller (205b) is uniformly surrounded by multiple upper slides, and each upper slide is connected to a scraping mechanism (6). The scraping mechanism (6) includes a tension spring (601) fixed to the bottom surface inside the upper slide. The upper end of the tension spring (601) is fixed to the lower end of the multi-faceted slide rod (602). The upper end of the multi-faceted slide rod (602) is fixed to one end of the bent connecting rod (603). The other end of the bent connecting rod (603) is fixed to the scraper body (604). The scraper body (604) slides on the inner wall of the inverted conical feed cylinder (101). The outer end of the scraper body (604) is fixed with a baffle plate (605).

6. The composite modified asphalt production system according to claim 5, characterized in that: The linkage mechanism (5) also includes a limiting horizontal plate (508) fixed on the transmission rack (503). The limiting horizontal plate (508) slides in the middle of the limiting screw (509). The lower end of the limiting screw (509) is fixed on the upright (3). A limiting compression spring (510) is sleeved on the rod between the upright (3) and the limiting horizontal plate (508). An adjusting nut (511) is threaded onto the limiting screw (509). The adjusting nut (511) is locked on the top surface of the limiting horizontal plate (508).

7. A composite modified asphalt production system according to claim 6, characterized in that: The reversing transmission wheel set (504) includes a wheel axle (504a) rotating on the stand (3), a first gear (504b) fixed on the wheel axle (504a), the outer side of the first gear (504b) meshing with the transmission rack (503); a second gear (504c) rotatably connected to the wheel axle (504a), the inner side of the second gear (504c) meshing with the driven rack (505), a collar (504d) fixed on one side of the second gear (504c), the collar (504d) sleeved on the wheel axle (504a), a plurality of slots evenly arranged around the wheel axle (504a), and a threaded insertion screw (504e) threaded onto the collar (504d), the insertion screw (504e) being able to be inserted into any slot.

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