A raw material mixing device for producing drainage asphalt mixture

Abstract

The present invention discloses a raw material mixing device for drainage asphalt mixture production in the technical field of drainage asphalt mixture production, comprising a reactor with a heating function, wherein the inner wall of the reactor is arc-shaped; a sealing cover, wherein the sealing cover is arranged at the upper end of the reactor, and a stirring mechanism is arranged at the lower end of the sealing cover, and the sealing cover is used to seal the reactor; a sealing mechanism, wherein the sealing mechanism is used to control the sealing cover to detach from or seal the reactor; by arranging a sealing cover that can be separated from the reactor with the stirring mechanism, the present invention makes the equipment of the present invention more convenient in the process of cleaning the equipment and loading and unloading materials than traditional equipment, thereby making the equipment more efficient in use.

Description

Technical Field

[0001] The invention relates to the technical field of drainage asphalt mixture production, in particular to a raw material mixing device for drainage asphalt mixture production. Background Art

[0002] Drainage asphalt pavement, also known as permeable asphalt pavement, refers to a new type of asphalt concrete surface layer with a void ratio of about 20% after compaction, which can form drainage channels inside the mixture. Its essence is an open-graded asphalt mixture with a skeleton-void structure formed by single-size crushed stones according to the embedding mechanism.

[0003] In traditional asphalt mixing equipment, since the stirring components are all arranged inside the asphalt container, the equipment is easily obstructed by the stirring components when loading and unloading or cleaning the equipment, which makes loading and unloading or cleaning more difficult and further affects the efficiency of asphalt mixing. Summary of the invention

[0004] The purpose of the present invention is to provide a raw material mixing device for the production of drainage asphalt mixture, so as to solve the problem that the traditional asphalt mixing equipment proposed in the above background technology is that since the stirring components are arranged inside the asphalt container, the equipment is easily obstructed by the stirring components when loading and unloading or cleaning the equipment, which makes loading and unloading or cleaning more difficult and affects the efficiency of asphalt mixing.

[0005] To achieve the above object, the present invention provides the following technical solution: a raw material mixing device for producing drainage asphalt mixture, comprising a reactor with a heating function, wherein the inner wall of the reactor is arc-shaped;

[0006] A sealing cover, which is arranged at the upper end of the reaction kettle, and a stirring mechanism is arranged at the lower end of the sealing cover, and the sealing cover is used to seal the reaction kettle;

[0007] The sealing mechanism is used to control the sealing cover to separate from or seal the reaction kettle.

[0008] As a further solution of the present invention, the sealing mechanism includes sliders fixedly connected to both ends of the sealing cover, and slide rails are vertically fixedly connected to the outer walls of both sides of the reactor corresponding to the sliders. The sliders are vertically slidably connected to the corresponding slide rails respectively, and the slide rails are externally connected to a driving device, which is used to drive the slider to move vertically.

[0009] As a further solution of the present invention, the stirring mechanism includes a protective shell fixedly connected to the upper end of the sealing cover, the inner wall of the protective shell is fixedly connected to a driving motor, the output shaft of the driving motor is fixedly connected to a transmission shaft, the transmission shaft is rotatably connected to the sealing cover, the side wall of the transmission shaft is fixedly connected to a plurality of stirring components distributed in a circular array, the lower end of the transmission shaft is fixedly connected to a plurality of arc-shaped hanging rods distributed in a circular array, the arc-shaped hanging rods can be fitted with the inner wall of the reactor, and a scratching mechanism is provided on the arc-shaped hanging rod, which is used to scrape the inner wall of the reactor.

[0010] As a further solution of the present invention, the scraping mechanism includes a mounting groove that passes through the side wall of the arc-shaped hanging rod, a scraping table is arranged on one side of the arc-shaped hanging rod, and the end face of the scraping table is fixedly connected with a first connecting rod, the first connecting rod passes through the mounting groove and is fixedly connected with a limiting table at one side of the mounting groove, and the side walls of the scraping table and the limiting table are respectively attached to both sides of the arc-shaped hanging rod; the scraping table is fixedly connected with a second connecting rod radially along the inner wall of the reactor, the second connecting rod is provided with an extrusion mechanism, and the extrusion mechanism is used to squeeze the scraping table against the inner wall of the reactor through the second connecting rod, and the extrusion mechanism is transmission-connected with a control mechanism, and the control mechanism is used to control the scraping table to reciprocate along the mounting groove.

[0011] As a further solution of the present invention, the extrusion mechanism includes a first mounting hole vertically penetrating through the axis of the sealing cover, a mounting column is rotatably connected in the first mounting hole, a second mounting hole is vertically penetrating through the axis of the mounting column, the transmission shaft is fixedly connected to the inner wall of the second mounting hole, U-shaped mounting plates are embedded in the positions of the arc-shaped hanging rods on the side walls of the mounting columns, a sleeve is rotatably connected to the inner wall of the U-shaped mounting plate, the connection between the sleeve and the inner wall of the U-shaped mounting plate coincides with the center of the arc-shaped inner wall of the reactor, the sleeve is slidably connected to the outer wall of the second connecting rod, a fixing sleeve is fixedly connected to the outer wall of the second connecting rod in the direction where the sleeve is close to the arc-shaped hanging rod, and a spring is fixedly connected between the sleeve and the fixing sleeve; the control mechanism is transmission-connected to the end of the second connecting rod.

[0012] As a further solution of the present invention, the outer wall of the second connecting rod is located in the direction of the fixed sleeve close to the arc-shaped hanging rod and is fixedly connected with a first sealing strip, the boundary of the U-shaped mounting plate below the sealing cover, the junction of this part of the U-shaped mounting plate and the sealing cover, and the junction of this part of the U-shaped mounting plate and the transmission shaft are jointly fixedly connected with a second sealing strip, and the first sealing strip and the corresponding second sealing strip are sealed with a bellows, and the bellows is used to seal the components located in the U-shaped mounting plate.

[0013] As a further solution of the present invention, the control mechanism includes a threaded sleeve rotatably connected to the output shaft of the driving motor, the threaded sleeve is fixedly connected to the inner wall of the protective shell, the threaded sleeve is vertically threaded with a reciprocating nut, the ends of the second connecting rod are fixedly connected to the telescopic rod, the ends of the telescopic rod are rotatably connected to connecting blocks, and the connecting blocks are fixedly connected to the outer wall of the reciprocating nut.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a sealing cover capable of separating the stirring mechanism from the reactor, so that the equipment of the present invention is more convenient in the process of cleaning the equipment and loading and unloading materials than the traditional equipment, and the use efficiency of the equipment is higher.

[0016] The present invention provides an arc-shaped hanging rod and a scraping mechanism to scrape and clean the raw materials near the inner wall of the reactor and attached to the inner wall of the reactor, so that the stirring of the equipment is more uniform, the stirring dead angle is reduced, and the adhesion time of the raw materials attached to the inner wall of the reactor is reduced, making the subsequent cleaning of the inner wall of the reactor more convenient.

[0017] The present invention uses a scraper to scrape off the attachments on the inner wall of the reactor in a point contact manner, and utilizes the high pressure of point contact and the characteristics of point contact that it is not easy to produce a contact gap. It can effectively target the characteristics of the high adhesion of asphalt materials that easily form a thin film gap between two mutually sliding contact parts; the scraper can effectively scrape off the attachments on the scraping position of the inner wall of the reactor, thereby reducing the attachment time and amount of the attachments on the inner wall of the reactor, thereby reducing the difficulty of subsequent cleaning of the inner wall of the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the present invention after removing the reaction kettle, the sealing cover and the sealing mechanism;

[0022] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B in the middle.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 11 reaction kettle, 12 sealing cover, 21 slider, 22 slide rail, 31 protective shell, 32 drive motor, 33 transmission shaft, 34 stirring assembly, 35 arc hanging rod, 41 mounting groove, 42 scraper table, 43 first connecting rod, 44 limit table, 45 second connecting rod, 51 mounting column, 52 U-shaped mounting plate, 53 sleeve, 54 fixed sleeve, 55 spring, 61 first sealing strip, 62 second sealing strip, 71 threaded sleeve, 72 reciprocating nut, 73 telescopic rod, 74 connecting block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0026] See also Figure 1-Figure 5 , the present invention provides a technical solution: a raw material mixing device for producing drainage asphalt mixture, comprising a reaction kettle 11 with a heating function, the inner wall of the reaction kettle 11 is arc-shaped;

[0027] A sealing cover 12 is arranged at the upper end of the reaction kettle 11, and a stirring mechanism is arranged at the lower end of the sealing cover 12. The sealing cover 12 is used to seal the reaction kettle 11;

[0028] The sealing mechanism is used to control the sealing cover 12 to separate from or seal the reaction kettle 11.

[0029] First, the sealing cover 12 is controlled to be separated from the reactor 11 through the sealing mechanism. At this time, the upper end of the reactor 11 is completely open, so that the arc-shaped inner wall of the reactor 11 is completely exposed, so that the inner wall of the reactor 11 can be cleaned conveniently, and the addition of raw materials into the reactor 11 is also convenient; then, after the cleaning and raw material proportioning of the reactor 11 are completed, the sealing cover 12 is controlled to seal the reactor 11 through the sealing mechanism, and the raw materials in the reactor 11 are stirred and mixed by the stirring mechanism at the lower end of the sealing cover 12. After the stirring and mixing is completed, the sealing cover 12 is opened again by the sealing mechanism, so that the sealing cover 12 and the stirring mechanism at the lower end of the sealing cover 12 are separated from the reactor 11, so as to facilitate the subsequent transfer of the asphalt produced in the reactor 11, and to facilitate the re-addition of raw materials to the reactor 11 after the asphalt transfer or the cleaning of the reactor 11.

[0030] The present invention provides a sealing cover 12 that can separate the stirring mechanism from the reactor 11, so that the equipment of the present invention is more convenient in the process of cleaning the equipment and loading and unloading materials than the traditional equipment, and the use efficiency of the equipment is higher.

[0031] As a further solution of the present invention, the sealing mechanism includes sliders 21 fixedly connected to both ends of the sealing cover 12, and slide rails 22 are vertically fixedly connected to the outer walls of both sides of the reactor 11 corresponding to the sliders 21. The sliders 21 are vertically slidably connected to the corresponding slide rails 22 respectively, and the slide rails 22 are externally connected to a driving device, which is used to drive the slider 21 to move vertically.

[0032] The vertical displacement of the slider 21 is controlled by an external driving device, thereby controlling the vertical displacement of the sealing cover 12 , so as to complete the sealing and separation work of the sealing cover 12 on the reaction kettle 11 .

[0033] As a further solution of the present invention, the stirring mechanism includes a protective shell 31 fixedly connected to the upper end of the sealing cover 12, the inner wall of the protective shell 31 is fixedly connected to a driving motor 32, the output shaft of the driving motor 32 is fixedly connected to a transmission shaft 33, the transmission shaft 33 is rotatably connected to the sealing cover 12, the side wall of the transmission shaft 33 is fixedly connected to a plurality of stirring components 34 distributed in a circular array, the lower end of the transmission shaft 33 is fixedly connected to a plurality of arc-shaped hanging rods 35 distributed in a circular array, the arc-shaped hanging rods 35 can be fitted with the inner wall of the reactor 11, and a scratching mechanism is provided on the arc-shaped hanging rods 35, which is used to scrape the inner wall of the reactor 11.

[0034] When the raw materials in the reactor 11 are added and the sealing cover 12 seals the reactor 11, the driving motor 32 is started at this time, so that the driving motor 32 drives the transmission shaft 33, and then the transmission shaft 33 drives the stirring component 34 and the arc-shaped hanging rod 35 to stir the raw materials in the reactor 11. During the stirring process, the reactor 11 continues to heat the raw materials. During this process, due to the high viscosity of asphalt, the raw materials close to the inner wall of the reactor 11 are difficult to be stirred by the stirring component 34. At the same time, the heating of the raw materials by the reactor 11 makes the raw materials easy to adhere to the inner wall of the reactor 11. During this process, the arc-shaped hanging rod 35 is close to the inner wall of the reactor 11, and the raw materials on the inner wall of the reactor 11 are scraped and stirred, thereby reducing the adhesion thickness of the raw materials on the inner wall of the reactor 11 and increasing the stirring effect of the equipment; Furthermore, also because of the high viscosity of the asphalt material, when the inner wall of the reactor 11 is scraped against the surface, since there is always a gap between the surfaces, it is difficult for the arc-shaped hanging rod 35 to completely scrape off the attachments on the inner wall of the reactor 11, so that there is always a layer of stubborn attachments on the inner wall of the reactor 11. With the long-term use of the equipment, the reactor 11 heats the layer of stubborn attachments for a long time, which makes the adhesion of the layer of attachments stronger, making it more difficult to clean the reactor 11 later. Correspondingly, the scraping mechanism provided on the arc-shaped hanging rod 35 in the equipment can continuously scrape and remove the stubborn attachments on the inner wall of the reactor 11 as the equipment runs, so as to prevent the stubborn attachments from adhering to the inner wall of the reactor 11 for a long time, which continuously increases the difficulty of subsequent cleaning.

[0035] The present invention provides an arc-shaped hanging rod 35 and a scraping mechanism to scrape and clean the raw materials near the inner wall of the reactor 11 and attached to the inner wall of the reactor 11, so that the stirring of the equipment is more uniform, the stirring dead angle is reduced, and the adhesion time of the raw materials attached to the inner wall of the reactor 11 is reduced, making the subsequent cleaning of the inner wall of the reactor 11 more convenient.

[0036] As a further solution of the present invention, the scraping mechanism includes a mounting groove 41 that passes through the side wall of the arc-shaped hanging rod 35, a scraping table 42 is arranged on one side of the arc-shaped hanging rod 35, and a first connecting rod 43 is fixedly connected to the end face of the scraping table 42. The first connecting rod 43 passes through the mounting groove 41 and is fixedly connected to a limiting table 44 at one side of the mounting groove 41. The side walls of the scraping table 42 and the limiting table 44 are respectively attached to the two sides of the arc-shaped hanging rod 35; the scraping table 42 is fixedly connected to a second connecting rod 45 radially along the inner wall of the reactor 11, and the second connecting rod 45 is provided with an extrusion mechanism, which is used to squeeze the scraping table 42 against the inner wall of the reactor 11 through the second connecting rod 45, and the extrusion mechanism is transmission-connected to a control mechanism, which is used to control the scraping table 42 to reciprocate along the mounting groove 41.

[0037] Under the action of the extrusion mechanism, the scraper 42 always squeezes the inner wall of the reactor 11. Since the inner wall of the reactor 11 is spherical, and the extrusion surface between the scraper 42 and the inner wall of the reactor 11 is a horizontally arranged cylindrical surface, the contact between the scraper 42 and the inner wall of the reactor 11 is point contact. Further, as the arc-shaped hanging rod 35 sweeps the inner wall of the reactor 11 around the transmission shaft 33, the scraper 42 scrapes off the attachments on the inner wall of the reactor 11 in a point contact manner. At the same time, under the control of the control mechanism, the scraper 42 reciprocates along the mounting groove 41, so that during the rotation of the arc-shaped hanging rod 35, the scraper 42 can scrape different positions of the inner wall of the reactor 11 to reduce the attachment time and amount of the attachments on the inner wall of the reactor 11, thereby reducing the difficulty of subsequent cleaning of the inner wall of the reactor 11.

[0038] The present invention uses a scraper 42 to scrape off the attachments on the inner wall of the reactor 11 in a point contact manner, and utilizes the high pressure of point contact and the characteristics of point contact that it is not easy to produce a contact gap. It can effectively target the characteristics of the high adhesion of asphalt materials that easily form a thin film gap between two mutually sliding contact parts; the scraper 42 can effectively scrape off the attachments on the scraping position of the inner wall of the reactor 11, thereby reducing the attachment time and attachment amount of the attachments on the inner wall of the reactor 11, and thereby reducing the difficulty of subsequent cleaning of the inner wall of the reactor 11.

[0039] As a further scheme of the present invention, the extrusion mechanism includes a first mounting hole vertically penetrating through the axis of the sealing cover 12, a mounting column 51 is rotatably connected in the first mounting hole, a second mounting hole is vertically penetrating through the axis of the mounting column 51, the transmission shaft 33 is fixedly connected to the inner wall of the second mounting hole, and a U-shaped mounting plate 52 is embedded in the side wall of the mounting column 51 corresponding to the position of the arc-shaped hanging rod 35, a sleeve 53 is rotatably connected to the inner wall of the U-shaped mounting plate 52, the connection between the sleeve 53 and the inner wall of the U-shaped mounting plate 52 coincides with the center of the arc-shaped inner wall of the reactor 11, the sleeve 53 is slidably connected to the outer wall of the second connecting rod 45, and a fixing sleeve 54 is fixedly connected to the outer wall of the second connecting rod 45 in the direction where the sleeve 53 is close to the arc-shaped hanging rod 35, and a spring 55 is fixedly connected between the sleeve 53 and the fixing sleeve 54; the control mechanism is transmission-connected to the end of the second connecting rod 45.

[0040] As the scraper 42 moves on the inner wall of the reactor 11, it is inevitable that the gap between the scraper 42 and the inner wall of the reactor 11 will continue to change. In this process, under the elastic force of the spring 55, the scraper 42 can always be tightly pressed against the inner wall of the reactor 11; at the same time, since the connection between the sleeve 53 and the inner wall of the U-shaped mounting plate 52 coincides with the center of the arc-shaped inner wall of the reactor 11, during the reciprocating movement of the scraper 42 along the mounting groove 41, the corresponding first connecting rod 43 rotates around the center of the arc-shaped inner wall, so that the scraper 42 rotates around the inner wall of the reactor 11. The center of the arc-shaped inner wall rotates, and thus can effectively reduce the change in the gap between the scraper table 42 and the inner wall of the reactor 11 during the reciprocating movement of the scraper table 42 along the mounting groove 41, thereby reducing the deformation of the spring 55 to keep the scraper table 42 pressed against the inner wall of the reactor 11, and further reducing the change in the elastic force applied to the scraper table 42 by the spring 55 due to the change in the deformation, thereby further stabilizing the squeezing pressure of the scraper table 42 on the inner wall of the reactor 11 and making the scraping effect of the scraper table 42 more stable.

[0041] As a further solution of the present invention, the outer wall of the second connecting rod 45 is located in the direction of the fixed sleeve 54 close to the arc hanging rod 35 and is fixedly connected with the first sealing strip 61, the boundary of the U-shaped mounting plate 52 below the sealing cover 12, the junction of the part of the U-shaped mounting plate 52 and the sealing cover 12, and the junction of the part of the U-shaped mounting plate 52 and the transmission shaft 33 are jointly fixedly connected with the second sealing strip 62, and the first sealing strip 61 and the corresponding second sealing strip 62 are sealed and externally connected with a bellows, which is used to seal the components located in the U-shaped mounting plate 52.

[0042] The components in the U-shaped mounting plate 52 are sealed by a bellows to prevent the asphalt vapor generated during the asphalt heating process from adhering to the components in the U-shaped mounting plate 52, causing transmission failure of the components in the U-shaped mounting plate 52 due to the high viscosity of the asphalt. At the same time, the present invention adopts a method of directly wrapping the bellows to seal the relevant components, and the sealing points related to the sealing process are all fixedly connected, which further effectively targets the high viscosity characteristics of the asphalt and prevents the asphalt from affecting the seals.

[0043] As a further solution of the present invention, the control mechanism includes a threaded sleeve 71 rotatably connected to the output shaft of the driving motor 32, the threaded sleeve 71 is fixedly connected to the inner wall of the protective shell 31, a reciprocating nut 72 is vertically threadedly connected to the threaded sleeve 71, the ends of the second connecting rod 45 are fixedly connected to the telescopic rod 73, the ends of the telescopic rod 73 are rotatably connected to the connecting blocks 74, and the connecting blocks 74 are fixedly connected to the outer wall of the reciprocating nut 72.

[0044] In the process of driving the transmission shaft 33 to rotate by the driving motor 32, the transmission shaft 33 drives the second connecting rod 45 to rotate around the axis of the transmission shaft 33 through the connection between the mounting column 51, the U-shaped mounting plate 52 and the sleeve 53. Furthermore, the second connecting rod 45 drives the reciprocating nut 72 to rotate around the axis of the transmission shaft 33 through the connecting block 74, thereby causing the reciprocating nut 72 to rotate relative to the threaded sleeve 71, causing the reciprocating nut 72 to reciprocate in the vertical direction. In this process, the reciprocating nut 72 drives the connecting block 74 to reciprocate in the vertical direction, thereby causing the connecting block 74 to drive the telescopic rod 73 and the second connecting rod 45 to reciprocate with the connection between the U-shaped mounting plate 52 and the sleeve 53 as the fulcrum, thereby causing the scraper table 42 to reciprocate along the mounting groove 41.

Claims

1. A raw material mixing device for producing drainage asphalt mixture, characterized in that: It comprises a reaction kettle (11) with a heating function, wherein the inner wall of the reaction kettle (11) is arc-shaped; A sealing cover (12), the sealing cover is arranged at the upper end of the reaction kettle (11), a stirring mechanism is arranged at the lower end of the sealing cover (12), and the sealing cover (12) is used to seal the reaction kettle (11); A sealing mechanism, the sealing mechanism being used to control the sealing cover (12) to separate from or seal the reaction kettle (11); The sealing mechanism comprises sliders (21) fixedly connected to both ends of the sealing cover (12); slide rails (22) are vertically fixedly connected to the outer walls of both sides of the reactor (11) at locations corresponding to the sliders (21); the sliders (21) are vertically slidably connected to the corresponding slide rails (22) respectively; the slide rails (22) are externally connected to a driving device, and the driving device is used to drive the sliders (21) to move vertically; The stirring mechanism comprises a protective shell (31) fixedly connected to the upper end of the sealing cover (12); the inner wall of the protective shell (31) is fixedly connected to a driving motor (32); the output shaft of the driving motor (32) is fixedly connected to a transmission shaft (33); the transmission shaft (33) is rotatably connected to the sealing cover (12); a plurality of stirring components (34) distributed in a circumferential array are fixedly connected to the side wall of the transmission shaft (33); a plurality of arc-shaped hanging rods (35) distributed in a circumferential array are fixedly connected to the lower end of the transmission shaft (33); the arc-shaped hanging rods (35) are capable of fitting with the inner wall of the reaction kettle (11); a scraping mechanism is provided on the arc-shaped hanging rod (35); the scraping mechanism is used to scrape the inner wall of the reaction kettle (11); The scraping mechanism comprises a mounting groove (41) extending through the side wall of the arc-shaped hanging rod (35); a scraping platform (42) is arranged on one side of the arc-shaped hanging rod (35); the end face of the scraping platform (42) is fixedly connected with a first connecting rod (43); the first connecting rod (43) passes through the mounting groove (41) and is fixedly connected with a limiting platform (44) at a position on one side of the mounting groove (41); the side walls of the scraping platform (42) and the limiting platform (44) respectively fit the two sides of the arc-shaped hanging rod (35); the scraping platform (42) is fixedly connected with a second connecting rod (45) radially along the inner wall of the reactor (11); the second connecting rod (45) is provided with an extrusion mechanism, the extrusion mechanism is used to make the scraping platform (42) extrude the inner wall of the reactor (11) through the second connecting rod (45); the extrusion mechanism is transmission-connected with a control mechanism, the control mechanism is used to control the scraping platform (42) to make reciprocating motion along the mounting groove (41).

2. The raw material mixing device for producing drainage asphalt mixture according to claim 1, characterized in that: The extrusion mechanism comprises a first mounting hole vertically penetrating through the center of the sealing cover (12), a mounting column (51) being rotatably connected in the first mounting hole, a second mounting hole vertically penetrating through the center of the mounting column (51), the transmission shaft (33) being fixedly connected to the inner wall of the second mounting hole, a U-shaped mounting plate (52) being embedded at a position of the side wall of the mounting column (51) corresponding to the arc-shaped hanging rod (35), a sleeve (53) being rotatably connected to the inner wall of the U-shaped mounting plate (52), and the sleeve ( The connection between the sleeve (53) and the inner wall of the U-shaped mounting plate (52) coincides with the center of the arc-shaped inner wall of the reactor (11); the sleeve (53) is slidably connected to the outer wall of the second connecting rod (45); the outer wall of the second connecting rod (45) is fixedly connected with a fixing sleeve (54) in the direction of the sleeve (53) close to the arc-shaped hanging rod (35); a spring (55) is fixedly connected between the sleeve (53) and the fixing sleeve (54); and the control mechanism is transmission-connected to the end of the second connecting rod (45).

3. The raw material mixing device for producing drainage asphalt mixture according to claim 2, characterized in that: The outer wall of the second connecting rod (45) is fixedly connected to a first sealing strip (61) in a direction of the fixing sleeve (54) close to the arc-shaped hanging rod (35); the boundary of the U-shaped mounting plate (52) below the sealing cover (12), the boundary between the U-shaped mounting plate (52) and the sealing cover (12), and the boundary between the U-shaped mounting plate (52) and the transmission shaft (33) are fixedly connected to a second sealing strip (62); a bellows is sealed between the first sealing strip (61) and the corresponding second sealing strip (62), and the bellows is used to seal the components located in the U-shaped mounting plate (52).

4. The raw material mixing device for producing drainage asphalt mixture according to claim 2, characterized in that: The control mechanism comprises a threaded sleeve (71) rotatably connected to the output shaft of the driving motor (32), the threaded sleeve (71) being fixedly connected to the inner wall of the protective shell (31), a reciprocating nut (72) being vertically threadedly connected to the threaded sleeve (71), the ends of the second connecting rod (45) being fixedly connected to the telescopic rod (73), the ends of the telescopic rod (73) being rotatably connected to the connecting blocks (74), and the connecting blocks (74) being fixedly connected to the outer wall of the reciprocating nut (72).

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