A modified asphalt mixture production system

Abstract

This invention relates to the field of modified asphalt mixture technology, specifically to a modified asphalt mixture production system, including a transfer silo and a mixer for receiving materials output from the lower end of the transfer silo. Two dispersing rollers are installed at the upper end of the transfer silo, with multiple dispersing blades fixed to the outer wall of the rollers. An hourglass-shaped sleeve is also provided inside the transfer silo, positioned below the dispersing rollers. The upper and lower ends of the hourglass-shaped sleeve are respectively provided with a conical sleeve and a conical platform. An annular material drop gap is formed between the outer wall of the conical platform and the lower inner wall of the hourglass-shaped sleeve. Several material leakage holes are opened at the bottom of the conical sleeve. A first material cylinder is installed on one side of the transfer silo. An annular tube is fitted around the outside of the hourglass-shaped sleeve, with multiple spray pipes connected to one end of the annular tube. The other end of each spray pipe extends into the interior of the hourglass-shaped sleeve. A second material cylinder is installed on one side of the transfer silo. This invention allows for cross-batch mixing of the mixture within the transfer silo, improving mixing uniformity.

Description

Technical Field

[0001] The invention relates to the technical field of modified asphalt mixture, and in particular to a modified asphalt mixture production system. Background Art

[0002] Asphalt mixture is a composite material, which is a mixture of asphalt and materials that increase strength and toughness, such as polymers, plastics, carbon black, and inorganic salts. Modifiers are added to form modified asphalt mixture. Asphalt modifiers require the coordination and preparation of multiple raw materials during the production and processing process.

[0003] In the patent with publication number CN217016205U, a modulation device for producing asphalt mixture modifier is proposed, including a modulation barrel, a stirring assembly is installed at the bottom of the modulation barrel, the stirring assembly includes a stirring motor and a stirring head, the stirring head is rotatably connected to the modulation barrel, and the output end of the stirring motor is inserted into the inner side of the stirring head, the stirring motor is fixedly connected to the modulation barrel by bolts, a cover plate is provided at the top opening of the modulation barrel, and a plurality of guide pipes are provided at the top of the arc surface of the modulation barrel, a metering pump is connected to the end of the guide pipe, and a plurality of raw material barrels are provided on the arc surface of the modulation barrel, and a sealing cover is provided at the top of the raw material barrel. It is connected with the metering pump; the modulation barrel is convenient for mixing the raw materials used in the production of the modifier, so as to facilitate the modulation of the modifier, the stirring assembly is convenient for quickly mixing the raw materials of the modifier, the stirring motor is convenient for driving the stirring head to rotate, so as to facilitate the stirring head to quickly mix the raw materials, the cover plate is convenient for sealing the top opening of the modulation barrel, the guide pipe is convenient for the metering pump to draw a certain amount of raw materials into the modulation barrel, the raw material barrel is convenient for storing raw materials, so as to facilitate the use of the raw material barrel, the metering pump is convenient for drawing a certain amount of raw materials into the modulation barrel, and the sealing cover is convenient for sealing the raw material barrel, which is convenient for the stability of the raw material barrel.

[0004] In the prior art, asphalt mixture raw materials and modifiers are introduced into the mixer together for mixing, without pre-mixing function, and the mixture completely relies on the mixer for cross-mixing, so that the raw materials are not mixed evenly in the mixer. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a modified asphalt mixture production system to solve the problem that the existing modified asphalt mixture mixing and stirring device does not have a pre-mixing function.

[0006] Based on the above purpose, the present invention provides a modified asphalt mixture production system, including a transfer bin and a mixer for receiving the output material at the lower end of the transfer bin, two scattering rollers are installed at the upper end of the transfer bin, and a plurality of scattering blades are fixed on the outer wall of the scattering roller. An hourglass-shaped sleeve is also provided in the transfer bin, and the hourglass-shaped sleeve is arranged below the scattering roller. A conical sleeve and a conical platform are respectively provided at the upper and lower ends of the hourglass-shaped sleeve, and an annular blanking gap is formed between the outer wall of the conical platform and the inner wall of the lower part of the hourglass-shaped sleeve, and the bottom of the conical sleeve is opened. There are several leakage holes, a first barrel is installed on one side of the transfer bin, a first feed pipe is connected to one side of the first barrel, the other end of the first feed pipe is rotatably connected to the conical sleeve and supplies material to it, an annular tube is provided on the outside of the hourglass-shaped sleeve, a plurality of nozzles are connected to one circle of the annular tube, the other ends of the nozzles extend to the inside of the hourglass-shaped sleeve and are located at the middle necking position of the hourglass-shaped sleeve, a second barrel is installed on one side of the transfer bin, a second feed pipe is connected to one side of the second barrel, the other end of the second feed pipe is connected to the annular tube and supplies material to it.

[0007] In order to improve the smoothness of premixing, a motor protection box is provided in the transfer bin, and a driving motor is provided in the motor protection box. The driving motor is used to drive the cone sleeve and the cone table to rotate.

[0008] In order to facilitate the material to enter the mixer, a material guide slide is installed at the lower end of the transfer bin, and the other end of the material guide slide is aligned with the feed end of the mixer.

[0009] In order to improve the dispersion effect, two meshing gears are rotatably provided on one side of the transfer bin, and two scattering rollers are respectively connected to the two gears. A motor is fixed on the other side of the transfer bin, and the motor is used to drive one of the scattering rollers.

[0010] In order to improve the dispersion effect, the outer wall of the conical sleeve is provided with material-blocking protrusions, and the material-blocking protrusions are evenly distributed on the conical sleeve at equal distances.

[0011] In order to facilitate the input of the raw materials to be mixed, a first material pump is installed on the first feed pipe, and the first material pump is used to pump in powder, and a second material pump is installed on the second feed pipe, and the second material pump is used to pump in fluid.

[0012] In order to ensure smooth premixing and save electric energy, a transmission sleeve is fixed at the output end of the driving motor, a transmission shaft is connected to the transmission sleeve, the upper end of the transmission shaft is fixedly connected to the conical table, the lower end of the transmission shaft extends into the transmission sleeve and is provided with a plane thrust bearing, a spring is provided in the transmission sleeve at the lower side of the plane thrust bearing, a protrusion is provided on the side wall of the lower end of the transmission shaft, a limiting groove is provided on the inner wall of the transmission sleeve above the plane thrust bearing, the expansion and contraction amount of the spring makes the protrusion on the transmission shaft have two states: being located above the limiting groove and falling into the limiting groove, and a connecting shaft is fixedly connected between the conical table and the conical sleeve.

[0013] For ease of installation, a mounting bracket is fixed at the lower portion of the transfer bin, and the motor protection box is mounted on the mounting bracket.

[0014] In order to make the driving more reliable, there are two protrusions and two limiting grooves, the protrusions and the limiting grooves correspond to each other one by one, and the surface of the protrusion is a spherical surface.

[0015] In order to facilitate loading, a loading belt is also included. The loading belt is arranged on one side of the transfer bin, and the upper end of the loading belt is aligned with the upper end of the transfer bin.

[0016] Beneficial effects of the present invention:

[0017] The present invention, through the arrangement of the breaking rollers in the transfer bin, the hourglass sleeve, the conical sleeve, the conical table, the first barrel and the second barrel, after the mixture enters the transfer bin, the two breaking rollers preliminarily break up the mixture, and then the mixture falls on the conical sleeve and disperses into the hourglass sleeve. At this time, the first material pump pumps the powdered modifier into the conical sleeve and leaks it into the hourglass sleeve through the leakage hole, so that the mixture is uniformly mixed with the continuously sprinkled modifier as it passes continuously, and then the asphalt continues to fall to the bottom of the hourglass sleeve. At this time, the second material pump pumps the liquid additive into the annular pipe and sprays it out through multiple nozzles, and mixes it with the mixture again as described above, and then merges together after being dispersed by the conical table, so that all the raw materials are pre-mixed in the transfer bin and then put into the mixer for heating and mixing before discharging, so that the mixture is cross-mixed in batches in the transfer bin to improve the mixing uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention;

[0020] Figure 2 is a schematic plan cross-sectional view of an embodiment of the present invention;

[0021] Figure 3 It is a partial enlarged schematic diagram of an embodiment of the present invention;

[0022] Figure 4 It is a three-dimensional schematic diagram of an hourglass-shaped sleeve according to an embodiment of the present invention;

[0023] Figure 5 It is a three-dimensional schematic diagram of the internal structure of the hourglass-shaped sleeve according to an embodiment of the present invention;

[0024] Figure 6A three-dimensional schematic diagram of a scattering roller according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection structure between the transmission shaft and the transmission sleeve according to an embodiment of the present invention;

[0026] Figure 8 for Figure 7 AA section view;

[0027] The markings in the figure are:

[0028] 1. Transfer bin; 2. Mixer; 3. Feeding belt; 4. First barrel; 5. Second barrel; 6. Motor; 7. Guide slide; 8. Scattering roller; 9. Conical sleeve; 10. Hourglass sleeve; 11. Annular tube; 12. Conical table; 13. Transmission shaft; 14. Transmission sleeve; 15. Motor protection box; 16. Spring; 17. Planar thrust bearing; 18. First feed pipe; 19. First feed pump; 20. Second feed pipe; 21. Second feed pump; 22. Leakage hole; 23. Material blocking protrusion; 24. Nozzle; 25. Connecting shaft; 26. Scattering blades; 27. Gear; 28. Protrusion; 29. ​​Limiting groove. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Please refer to the attached Figure 1 -Attached Figure 8A modified asphalt mixture production system includes a transfer bin 1 and a mixer 2. After the material is discharged from the lower end of the transfer bin 1, the material is put into the mixer 2. Two scattering rollers 8 are installed at the upper end of the transfer bin 1. A plurality of scattering blades 26 are fixed on the outer wall of the scattering roller 8. An hourglass-shaped sleeve 10 is also provided in the transfer bin 1. The hourglass-shaped sleeve 10 is arranged below the scattering roller 8. A conical sleeve 9 and a conical platform 12 are respectively provided at the upper and lower ends of the hourglass-shaped sleeve 10. An annular material gap is formed between the outer wall of the conical platform 12 and the inner wall of the lower part of the hourglass-shaped sleeve 10. A plurality of material leakage holes 22 are opened at the bottom of the conical sleeve 9. A first material barrel 4 is installed on one side of the transfer bin 1. A first feeding pipe 18 is connected to one side of the first material barrel 4. The first feeding pipe 18 is connected to the first feeding pipe 18. The other end of the tube 18 is rotatably connected to the conical sleeve 9 and supplies material to it. The outer sleeve of the hourglass-shaped sleeve 10 is provided with an annular tube 11, and a plurality of nozzles 24 are connected to a circle of the annular tube 11. The other ends of the nozzles 24 extend to the internal necking of the hourglass-shaped sleeve 10. A second barrel 5 is installed on one side of the transfer bin 1, and a second feed pipe 20 is connected to one side of the second barrel 5. The other end of the second feed pipe 20 is connected to the annular tube 11 and supplies material to it. A motor protection box 15 is provided in the transfer bin 1, and a drive motor is provided in the motor protection box 15. A mounting bracket is fixed at the lower part of the transfer bin 1, and the motor protection box 15 is fixedly installed on the mounting bracket. The drive motor is used to drive the conical sleeve 9 and the conical table 12 to rotate and remove materials.

[0032] A material guide slide 7 is installed at the lower end of the transfer bin 1, and the other end of the material guide slide 7 is aligned with the feed end of the mixer 2. Two meshing gears 27 are rotatably arranged on one side of the transfer bin 1, and two scattering rollers 8 are respectively connected to the two gears 27. A motor 6 is fixed on the other side of the transfer bin 1, and the motor 6 is used to drive one of the scattering rollers 8. After the mixed material enters the transfer bin 1, the scattering blades 26 on the two scattering rollers 8 perform preliminary scattering on the mixed material.

[0033] The outer wall of the conical sleeve 9 is provided with material-blocking protrusions 23 , which are evenly distributed on the conical sleeve 9 at equal distances. When the mixed material falls on the conical sleeve 9 , the material-blocking protrusions 23 impact the mixed material to disperse it.

[0034] A first material pump 19 is installed on the first feed pipe 18, and the first material pump 19 is used to pump in powder. A second material pump 21 is installed on the second feed pipe 20, and the second material pump 21 is used to pump in fluid.

[0035] A transmission sleeve 14 is fixed to the output end of the driving motor, the lower end of the transmission shaft 13 extends into the transmission sleeve 14 and is provided with a plane thrust bearing 17, a spring 16 is provided in the transmission sleeve 14 at the lower side of the plane thrust bearing 17, a protrusion 28 is provided on the lower end side wall of the transmission shaft 13, and a limiting groove 29 is provided on the inner wall of the transmission sleeve 14 above the plane thrust bearing 17. The expansion and contraction amount of the spring 16 makes the protrusion 28 on the transmission shaft 13 have two states of being located above the limiting groove 29 and falling into the limiting groove 29. When the backlog of materials on the conical table 12 and the conical sleeve 9 is small, the materials flow smoothly in the transfer bin, and the protrusion 28 is located in the limiting groove 29. 9, the transmission shaft 13 and the transmission sleeve 14 can rotate relative to each other, so that the driving motor does not drive the conical table 12 and the conical sleeve 9 to rotate or rotates slowly. When there is a lot of material accumulated on the conical table 12 and the conical sleeve 9, the spring 16 is compressed. When the protrusion 28 is pressed to the height of the top surface of the limiting groove 29, the friction between the protrusion 28 and the top surface of the limiting groove 29 will prompt the protrusion 28 to enter the limiting groove 29, so that the driving motor can drive the conical table 12 and the conical sleeve 9 to rotate synchronously and quickly, promote the falling of the materials on the conical table 12 and the conical sleeve 9, and after the materials are removed, the transmission shaft 13 floats up and is separated from the drive of the driving motor, thereby saving electric energy.

[0036] It also includes a feeding belt 3, which is arranged on one side of the transfer bin 1, with the upper end of the feeding belt 3 aligned with the upper end of the transfer bin 1, and the asphalt material and the mixed main material are fed into the transfer bin 1 through the feeding belt 3.

[0037] Working principle: When in use, asphalt and mixed main materials are fed into the transfer bin 1 through the feeding belt 3, and powdered modifiers and liquid additives are respectively added into the first barrel 4 and the second barrel 5. After the mixed material enters the transfer bin 1, the scattering blades 26 on the two scattering rollers 8 perform preliminary scattering treatment on the mixed material, and then it falls on the conical sleeve 9 and disperses into the hourglass sleeve 10. At this time, the first material pump 19 pumps the modifier into the conical sleeve 9 and leaks into the hourglass sleeve 10 through the leakage hole 22, so that the mixed material is uniformly mixed with the continuously sprinkled modifier as it passes through, and the mixed material continues to fall to the bottom of the hourglass sleeve 10. At this time, the second material pump 21 pumps the liquid additive into the annular pipe 11, and sprays it out from multiple nozzles 24, and mixes it again with the mixed material with the modifier added. The materials are dispersed through the conical table 12 and then converged for further mixing. All raw materials are pre-mixed in the transfer bin 1 and then put into the mixer 2 for heating and mixing before discharging. When a blockage occurs, the conical sleeve 9 and the conical platform 12 are automatically connected to the driving force of the driving motor, so that the premixing is smooth and electric power is saved.

[0038] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modified asphalt mixture production system, comprising a transfer bin (1) and a mixer (2) for receiving materials output from the lower end of the transfer bin (1), characterized in that: Two scattering rollers (8) are installed at the upper end of the transfer bin (1), and a plurality of scattering blades (26) are fixed on the outer wall of the scattering roller (8). An hourglass-shaped sleeve (10) is also provided in the transfer bin (1). The hourglass-shaped sleeve (10) is arranged below the scattering roller (8). A conical sleeve (9) and a conical platform (12) are respectively provided at the upper and lower ends of the hourglass-shaped sleeve (10). An annular material-dropping gap is formed between the outer wall of the conical platform (12) and the inner wall of the lower part of the hourglass-shaped sleeve (10). A plurality of material-dropping holes (22) are opened at the bottom of the conical sleeve (9). A first barrel (4) is installed on one side of the transfer bin (1), one side of the first barrel (4) is connected to a first feed pipe (18), the other end of the first feed pipe (18) is rotatably connected to the conical sleeve (9) and supplies material thereto, the outer sleeve of the hourglass-shaped sleeve (10) is provided with an annular tube (11), a circle of the annular tube (11) is connected to a plurality of nozzles (24), the other ends of the nozzles (24) all extend into the interior of the hourglass-shaped sleeve (10) and are located at the middle neck position of the hourglass-shaped sleeve (10), a second barrel (5) is installed on one side of the transfer bin (1), one side of the second barrel (5) is connected to a second feed pipe (18), and the other end of the first feed pipe (18) is rotatably connected to the conical sleeve (9) and supplies material thereto, the outer sleeve of the hourglass-shaped sleeve (10) is provided with an annular tube (11), a circle of the annular tube (11) is connected to a plurality of nozzles (24), the other ends of the nozzles (24) all extend into the interior of the hourglass-shaped sleeve (10) and are located at the middle neck position of the hourglass-shaped sleeve (10), The transfer bin (1) is provided with a motor protection box (15), and a driving motor is provided in the motor protection box (15). The driving motor is used to drive the conical sleeve (9) and the conical table (12) to rotate; a transmission sleeve (14) is fixed to the output end of the driving motor, and a transmission shaft (13) is connected to the transmission sleeve (14). The upper end of the transmission shaft (13) is fixedly connected to the conical table (12), and the lower end of the transmission shaft (13) extends into the transmission sleeve (14) and is provided with a flat push rod. A thrust bearing (17) is provided in the transmission sleeve (14) below the plane thrust bearing (17), a spring (16) is provided in the transmission sleeve (14) below the plane thrust bearing (17), a protrusion (28) is provided on the lower end side wall of the transmission shaft (13), a limiting groove (29) is provided on the inner wall of the transmission sleeve (14) above the plane thrust bearing (17), the extension and contraction amount of the spring (16) enables the protrusion (28) on the transmission shaft (13) to have two states: being located above the limiting groove (29) and falling into the limiting groove (29), and a connecting shaft (25) is fixedly connected between the conical platform (12) and the conical sleeve (9).

2. A modified asphalt mixture production system according to claim 1, characterized in that: A material guide slide (7) is installed at the lower end of the transfer bin (1), and the other end of the material guide slide (7) is aligned with the feed end of the mixer (2).

3. A modified asphalt mixture production system according to claim 1, characterized in that: One side of the transfer bin (1) is rotatably provided with two meshing gears (27), and two scattering rollers (8) are respectively connected to the two gears (27). The other side of the transfer bin (1) is fixed with a motor (6), and the motor (6) is used to drive one of the scattering rollers (8).

4. A modified asphalt mixture production system according to claim 1, characterized in that: The outer wall of the conical sleeve (9) is provided with material-blocking protrusions (23), and the material-blocking protrusions (23) are evenly distributed on the conical sleeve (9) at equal distances.

5. A modified asphalt mixture production system according to claim 1, characterized in that: A first material pump (19) is installed on the first feeding pipe (18), and the first material pump (19) is used to pump in powder; a second material pump (21) is installed on the second feeding pipe (20), and the second material pump (21) is used to pump in fluid.

6. A modified asphalt mixture production system according to claim 1, characterized in that: A mounting bracket is fixed to the lower inner portion of the transfer bin (1), and the motor protection box (15) is mounted on the mounting bracket.

7. A modified asphalt mixture production system according to claim 6, characterized in that: There are two protrusions (28) and two limiting grooves (29), the protrusions (28) and the limiting grooves (29) correspond to each other one by one, and the surface of the protrusion (28) is a spherical surface.

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