Asphalt milling material crushing and screening device

Abstract

The present invention discloses an asphalt milling material crushing and screening device, which relates to the field of asphalt processing technology, including a mounting seat, a crusher is fixedly connected to the top of the mounting seat, a screw conveyor is fixedly connected to the output end of the crusher, a cleaning mechanism is provided on the top of the mounting seat on the right side of the crusher, and an opening and closing mechanism is provided at the input end of the crusher. By providing the cleaning mechanism, the soil attached to the surface of the asphalt is cleaned in the cylinder, impurities and dirt on the surface can be removed, and the bonding force between the asphalt and other materials is made stronger, thereby improving the stability and durability of the road surface. After cleaning, the asphalt can be reused in other engineering constructions, so there is no need to purchase a large amount of new asphalt, reducing the cost of engineering construction and maintenance. During the transportation of the cleaned asphalt milling material, the dust on the surface of the milling material is reduced, and a large amount of dust will not be generated during transportation, thereby reducing pollution to the environment.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt processing, in particular to an asphalt milling material crushing and screening device. Background Art

[0002] Asphalt milling material refers to the waste asphalt mixture removed from old asphalt pavement by milling machines or other mechanical equipment. This material is often recycled to conserve resources, reduce costs, and minimize waste. However, when recycling and utilizing asphalt milling material, proper handling and processing are required to ensure its quality and performance meet requirements. This may include screening, crushing, and heating to remove impurities and achieve the desired specifications and performance.

[0003] However, recycled asphalt milling materials have the following defects:

[0004] 1. Asphalt milling materials will bring up dirt and dust from the road surface during recycling, causing the asphalt milling materials to contain a large amount of dust. This dust may cause the adhesion between the asphalt and the stone to decrease when it is reused, thereby reducing the strength and stability of the road surface. At the same time, the dust-containing asphalt milling materials will cause a lot of dust pollution during transportation.

[0005] 2. The asphalt waste obtained from asphalt pavement milling varies in size and shape, so these asphalt wastes need to be crushed and screened. Asphalt wastes that still do not meet the standards after screening need to be crushed again. However, the amount of unqualified asphalt wastes after screening is relatively small, and they are usually accumulated to a certain amount before being crushed in a centralized manner. In this way, the asphalt crushing mechanism cannot crush the unqualified asphalt wastes after screening in a timely manner.

[0006] Therefore, the present invention proposes an asphalt milling material crushing and screening device to make up for and improve the shortcomings of the prior art. Summary of the Invention

[0007] In view of the above problems, the present invention provides an asphalt milling material crushing and screening device, which can effectively solve the problems in the prior art. In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0008] The present invention discloses an asphalt milling material crushing and screening device, which includes a mounting seat, a crusher is fixedly connected to the top of the mounting seat, a screw conveyor is fixedly connected to the output end of the crusher, a cleaning mechanism is provided on the top of the mounting seat on the right side of the crusher, and an opening and closing mechanism is provided at the input end of the crusher.

[0009] The cleaning mechanism includes an inclined cylinder, which is divided into a cleaning section and a separation section from left to right. A circular baffle is fixedly connected to the bottom of the cleaning section, and spiral blades are fixedly connected to the inner wall of the cylinder from left to right. A drain outlet is provided at the lowest point of the circumferential surface of the cylinder, and a plurality of water-permeable holes are provided on the circumferential surface of the cylinder located at the separation section. A water delivery component is provided on the cylinder, a rotating component is provided on the outside of the cylinder, and a screening component is provided on the top of the mounting seat at the rear of the cylinder.

[0010] The opening and closing mechanism includes a material receiving plate that is symmetrically fixedly connected to the input end of the crusher in the front and back directions. A movable plate is slidably connected to the connection between the material receiving plate and the crusher. A vertical rod is fixedly connected to the top of each movable plate. A horizontal plate is fixedly connected between the two vertical rods. An eccentric wheel is rotatably connected to the middle of the horizontal plate. A servo motor is fixedly connected to the top of the crusher, and the output end of the servo motor is fixedly connected to the eccentric wheel.

[0011] Furthermore, the rotating assembly includes two annular slides fixedly connected to the circumferential surface of the cylinder, each annular slide is sleeved with a support ring on the outside, and each support ring is rotatably connected to a plurality of rollers on the inside, and the rollers are slidably connected to the annular slide.

[0012] Furthermore, the rotating assembly also includes a collecting frame fixedly connected to the supporting ring, the collecting frame is located directly below the cylinder, and a guide plate is fixedly connected to the right side of the collecting frame.

[0013] Furthermore, the water delivery assembly includes a mounting bracket fixedly connected to the support ring, the mounting bracket is fixedly connected to a fixed pipe at one end away from the support ring, the fixed pipe extends from the right side of the cylinder to the inside of the cylinder, a plurality of nozzles are fixedly connected to the outside of the fixed pipe at equal distances, and a connecting pipe is fixedly connected to one end of the cylinder.

[0014] Furthermore, the screening assembly includes a base fixedly connected to the mounting seat, the top of the base is fixedly connected to springs distributed in a matrix, the top of the spring is fixedly connected to an outer shell, the inside of the outer shell is fixedly connected to a sieve plate, and the outside of the outer shell is fixedly connected to a vibration motor.

[0015] Furthermore, a first outlet is provided on the side of the shell, a second outlet is provided on the left side of the screen plate, and the second outlet extends to the material receiving plate.

[0016] Furthermore, a funnel is fixedly connected to the left side of the cylinder, the top of the funnel is communicated with the screw conveyor, and the bottom of the funnel extends into the interior of the cylinder.

[0017] Furthermore, the inner wall of the cylinder is rotatably connected to a cover plate via a hinge, the cover plate and the drain outlet match each other, and the hinge is located at the front of the cover plate.

[0018] Beneficial effects:

[0019] 1. By setting up a cleaning mechanism, the dirt attached to the asphalt surface is cleaned in the cylinder, which can remove surface impurities and dirt, make the adhesion between the asphalt and other materials stronger, thereby improving the stability and durability of the road surface. The asphalt after cleaning can be reused in other engineering construction, so there is no need to purchase a large amount of new asphalt, reducing the cost of engineering construction and maintenance. The dust on the surface of the cleaned asphalt milling material is reduced during transportation, and a large amount of dust will not be generated during transportation, thereby reducing pollution to the environment.

[0020] 2. By setting up a screening component, the crushed asphalt milling material is screened and the larger milling material particles are directly transported back to the crusher for re-crushing, which can avoid the accumulation of unqualified asphalt milling material, reduce the time and workload of centralized crushing treatment, and make the milling material crushed more quickly and evenly. The asphalt waste can be better mixed with other materials, improving the quality and performance of the product, facilitating subsequent processing and treatment, reducing the volume and quantity of asphalt waste, and reducing the impact on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from the first viewing angle.

[0023] Figure 2 This is a three-dimensional structural diagram from a second viewing angle of the present invention.

[0024] Figure 3 It is a three-dimensional structural diagram of the cylinder and rotating assembly in the present invention.

[0025] Figure 4 It is a three-dimensional structural diagram of the cylinder in the present invention.

[0026] Figure 5 It is a longitudinal cross-sectional structural diagram of the cylinder in the present invention.

[0027] Figure 6 It is a three-dimensional structural diagram of the screening component in the present invention.

[0028] Figure 7 This is a schematic diagram of the cover plate state when the cylinder rotates counterclockwise in the present invention.

[0029] Figure 8This is a schematic diagram of the position of the cover plate when the cylinder rotates clockwise in the present invention.

[0030] Figure 9 It is a three-dimensional structural diagram of the opening and closing mechanism of the present invention.

[0031] Figure 10 It is a cross-sectional view of the screening assembly in the present invention.

[0032] Figure 11 Schematic diagram of the connection between the support ring and the roller in the present invention.

[0033] The numbers in the figure represent: 1. mounting base; 2. crusher; 3. screw conveyor; 4. cleaning mechanism; 41. cylinder; 42. baffle; 43. cleaning section; 44. drain outlet; 45. cover; 46. hinge; 47. spiral blade; 48. separation section; 49. water hole; 50. water delivery component; 501. fixing pipe; 502. nozzle; 503. mounting bracket; 504. connecting pipe; 6. funnel; 7. , rotating assembly; 71. roller; 72. support ring; 73. annular slide; 74. collecting frame; 75. guide plate; 8. screening assembly; 81. base; 82. spring; 83. housing; 84. sieve plate; 85. vibration motor; 86. first outlet; 87. second outlet; 9. opening and closing mechanism; 91. moving plate; 92. vertical rod; 93. horizontal plate; 94. servo motor; 95. eccentric wheel; 96. receiving plate. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] See Figure 1 An asphalt milling material crushing and screening device in this embodiment includes a mounting seat 1, a crusher 2 is fixedly connected to the top of the mounting seat 1, a screw conveyor 3 is fixedly connected to the output end of the crusher 2, a cleaning mechanism 4 is provided on the top of the mounting seat 1 on the right side of the crusher 2, and an opening and closing mechanism 9 is provided at the input end of the crusher 2.

[0037] See Figure 2 、 Figure 3 、 Figure 4 and Figure 5The cleaning mechanism 4 includes an inclined cylinder 41, which is divided into a cleaning section 43 and a separation section 48 from left to right. A circular baffle 42 is fixedly connected to the bottom of the cleaning section 43, and a spiral blade 47 is fixedly connected to the inner wall of the cylinder 41 from left to right. A drain outlet 44 is provided at the lowest point of the circumferential surface of the cylinder 41, and a plurality of water-permeable holes 49 are provided on the circumferential surface of the cylinder 41 at the separation section 48. A water delivery component 50 is provided on the cylinder 41, a rotating component 7 is provided on the outside of the cylinder 41, and a screening component 8 is provided on the top of the mounting seat 1 at the rear of the cylinder 41.

[0038] See Figure 7 and Figure 8 The inner wall of the cylinder 41 is rotatably connected to a cover plate 45 via a hinge 46 . The cover plate 45 matches the drain outlet 44 , and the hinge 46 is located at the front of the cover plate 45 .

[0039] See Figure 3 A funnel 6 is fixedly connected to the left side of the cylinder 41 , the top of the funnel 6 is communicated with the screw conveyor 3 , and the bottom of the funnel 6 extends into the interior of the cylinder 41 .

[0040] During specific operation, large pieces of asphalt are crushed by the crusher 2 and then enter the funnel 6 from the screw conveyor 3. The crushed asphalt enters the cleaning section 43 at the left end from the bottom of the funnel 6. During this process, the cylinder 41 rotates counterclockwise all the time to clean the asphalt milling material in the cleaning section 43. The cleaned asphalt milling material enters the separation section 48 under the transportation of the spiral blades 47. At this time, the rotating cylinder 41 will throw out the moisture attached to the asphalt milling material from the water permeable holes 49.

[0041] When the cylinder 41 rotates counterclockwise (as Figure 7 As shown), when the drain port 44 rotates to the lowest point, the cover 45 is fastened to the drain port 44. At this time, the water in the cleaning section 43 of the cylinder 41 will not be discharged from the drain port 44. When the cylinder 41 rotates clockwise (as shown), the drain port 44 rotates to the lowest point, the cover 45 is fastened to the drain port 44. Figure 8 As shown), when the drain outlet 44 rotates to the highest point, the cover plate 45 rotates under the action of gravity, and at this time the cover plate 45 is detached from the drain outlet 44. During the process of the drain outlet 44 rotating from the highest point to the lowest point, since the hinge 46 is installed on the side of the cover plate 45, the cover plate 45 will not be re-fastened on the drain outlet 44. Therefore, when the drain outlet 44 rotates to the lowest point, the cover plate 45 cannot block the drain outlet 44. At this time, the water in the cleaning section 43 of the cylinder 41 will be discharged from the drainage 44, and the discharged water will discharge the dust of the asphalt milling material together. Then, the cylinder 41 is rotated counterclockwise again, and water is continuously injected into the cylinder 41 to clean the asphalt milling material.

[0042] See Figure 3 、 Figure 4 、 Figure 5 and Figure 11The rotating assembly 7 includes two annular slideways 73 fixedly connected to the circumferential surface of the cylinder 41. Each annular slideway 73 is sleeved with a support ring 72 on the outside. Each support ring 72 is rotatably connected to a plurality of rollers 71 on the inside. The rollers 71 are slidably connected to the annular slideway 73.

[0043] See Figure 3 The rotating assembly 7 further includes a collecting frame 74 fixedly connected to the supporting ring 72 . The collecting frame 74 is located directly below the cylinder 41 , and a guide plate 75 is fixedly connected to the right side of the collecting frame 74 .

[0044] During specific operation, when the cylinder 41 is cleaning the asphalt milling material, the cylinder 41 needs to rotate. At this time, the cylinder 41 is driven to rotate by external power. During the rotation of the cylinder 41, the cleaning is completed in the cleaning section 43, and the water is thrown out into the collection frame 74 in the separation section 48. The cleaned asphalt milling material passes through the guide plate 75 and enters the screening component 8.

[0045] See Figure 2 、 Figure 3 and Figure 5 The water delivery assembly 50 includes a mounting bracket 503 fixedly connected to the support ring 72. The mounting bracket 503 is fixedly connected to a fixed pipe 501 at one end away from the support ring 72. The fixed pipe 501 extends from the right side of the cylinder 41 to the inside of the cylinder 41. A plurality of nozzles 502 are fixedly connected to the outside of the fixed pipe 501 at equal intervals. A connecting pipe 504 is fixedly connected to one end of the cylinder 41.

[0046] During specific operation, external water enters the fixed pipe 501 from the connecting pipe 504, and is then sprayed out from the nozzle 502. The sprayed water flow enters the bottom of the inclined cylinder 41, so that the cleaning section 43 of the cylinder 41 is filled with water. The asphalt milling material is cleaned with the water in the cleaning section 43. When the sewage cleaned in the cleaning section 43 is discharged, the nozzle 502 continues to spray water to flush out the dust settled in the cylinder 41.

[0047] See Figure 6 、 Figure 9 and Figure 10 The screening assembly 8 includes a base 81 fixedly connected to the mounting base 1, the top of the base 81 is fixedly connected to springs 82 in a matrix distribution, the top of the spring 82 is fixedly connected to a shell 83, the inside of the shell 83 is fixedly connected to a sieve plate 84, and the outside of the shell 83 is fixedly connected to a vibration motor 85.

[0048] See Figure 3 and Figure 10 A first outlet 86 is opened on the side of the shell 83, and a second outlet 87 is opened on the left side of the screen plate 84. The second outlet 87 extends to the material receiving plate 96.

[0049] During specific operation, when the cleaned asphalt milling material enters the screening assembly 8, the asphalt milling material first falls on the screen plate 84. Under the drive of the vibration motor 85, the screen plate 84 and the outer shell 83 are continuously shaken, so that the milling material is separated on the screen plate 84, and the milling material with smaller particles passes through the screen holes and falls to the bottom of the outer shell 83. Under the drive of the vibration motor 85, the outer shell 83 is shaken to discharge the milling material with smaller particles from the first outlet 86, and the milling material with larger particles returns to the receiving plate 96 from the surface of the screen plate 84 along the second outlet 87, and then re-enters the crusher 2.

[0050] See Figure 9 The opening and closing mechanism 9 includes a receiving plate 96 that is symmetrically fixedly connected to the input end of the crusher 2 in the front and rear directions. A movable plate 91 is slidably connected to the connection between the receiving plate 96 and the crusher 2. A vertical rod 92 is fixedly connected to the top of each movable plate 91. A horizontal plate 93 is fixedly connected between the two vertical rods 92. An eccentric wheel 95 is rotatably connected to the middle of the horizontal plate 93. A servo motor 94 is fixedly connected to the top of the crusher 2, and the output end of the servo motor 94 is fixedly connected to the eccentric wheel 95.

[0051] During specific operation, when the asphalt milling material enters the crusher 2 from the receiving plate 96, the servo motor 94 drives the eccentric wheel 95 to rotate. When the eccentric wheel 95 rotates, it drives the horizontal plate 93 and the vertical rod 92 to move up and down synchronously, so that the movable plate 91 fixedly connected to the vertical rod 92 moves up and down synchronously and intermittently, so that the asphalt milling material can intermittently enter the crusher 2 from the receiving plate 96, avoiding the input end of the crusher 2 being open for a long time, causing a large amount of crushed dust to leak into the air.

[0052] Overall working process:

[0053] The crushed asphalt milling material enters the cylinder 41 from the funnel 6, is cleaned and separated by the cylinder 41, and the separated milling material enters the screening component 8 to separate the qualified milling material, and the unqualified asphalt milling material re-enters the crusher 2 for crushing.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An asphalt milling material crushing and screening device, characterized in that: It comprises a mounting seat (1), a crusher (2) is fixedly connected to the top of the mounting seat (1), a screw conveyor (3) is fixedly connected to the output end of the crusher (2), a cleaning mechanism (4) is provided on the top of the mounting seat (1) on the right side of the crusher (2), and an opening and closing mechanism (9) is provided on the input end of the crusher (2); The cleaning mechanism (4) comprises a cylinder (41) arranged obliquely, the cylinder (41) being divided into a cleaning section (43) and a separation section (48) from left to right, a circular baffle (42) being fixedly connected to the bottom of the cleaning section (43), a spiral blade (47) being fixedly connected to the inner wall of the cylinder (41) from left to right, a drain outlet (44) being provided at the lowest point of the circumferential surface of the cylinder (41), a plurality of water-permeable holes (49) being provided on the circumferential surface of the cylinder (41) at the separation section (48), a water delivery assembly (50) being provided on the cylinder (41), a rotating assembly (7) being provided on the outside of the cylinder (41), and a screening assembly (8) being provided on the top of the mounting seat (1) at the rear of the cylinder (41); The opening and closing mechanism (9) comprises a receiving plate (96) symmetrically fixedly connected to the input end of the crusher (2) in front and back directions; a movable plate (91) is slidably connected to the connection between the receiving plate (96) and the crusher (2); a vertical rod (92) is fixedly connected to the top of each movable plate (91); a horizontal plate (93) is fixedly connected between the two vertical rods (92); an eccentric wheel (95) is rotatably connected to the middle of the horizontal plate (93); a servo motor (94) is fixedly connected to the top of the crusher (2); and an output end of the servo motor (94) is fixedly connected to the eccentric wheel (95).

2. The asphalt milling material crushing and screening device according to claim 1, characterized in that: The rotating assembly (7) comprises two annular slideways (73) fixedly connected to the circumferential surface of the cylinder (41), each annular slideway (73) is sleeved with a support ring (72) on the outside, and each support ring (72) is rotatably connected to a plurality of rollers (71) on the inside, and the rollers (71) are slidably connected to the annular slideway (73).

3. The asphalt milling material crushing and screening device according to claim 2, characterized in that: The rotating assembly (7) further comprises a collecting frame (74) fixedly connected to the supporting ring (72). The collecting frame (74) is located directly below the cylinder (41), and a guide plate (75) is fixedly connected to the right side of the collecting frame (74).

4. The asphalt milling material crushing and screening device according to claim 1, characterized in that: The water delivery assembly (50) comprises a mounting bracket (503) fixedly connected to the support ring (72); one end of the mounting bracket (503) away from the support ring (72) is fixedly connected to a fixed pipe (501); the fixed pipe (501) extends from the right side of the cylinder (41) into the interior of the cylinder (41); a plurality of nozzles (502) are fixedly connected to the outside of the fixed pipe (501) at equal intervals; and one end of the cylinder (41) is fixedly connected to a connecting pipe (504).

5. The asphalt milling material crushing and screening device according to claim 1, characterized in that: The screening assembly (8) comprises a base (81) fixedly connected to the mounting seat (1); springs (82) are fixedly connected to the top of the base (81) in a matrix arrangement; a housing (83) is fixedly connected to the top of the spring (82); a sieve plate (84) is fixedly connected to the inside of the housing (83); and a vibration motor (85) is fixedly connected to the outside of the housing (83).

6. The asphalt milling material crushing and screening device according to claim 5, characterized in that: A first outlet (86) is provided on the side of the shell (83), and a second outlet (87) is provided on the left side of the screen plate (84). The second outlet (87) extends to the receiving plate (96).

7. The asphalt milling material crushing and screening device according to claim 1, characterized in that: A funnel (6) is fixedly connected to the left side of the cylinder (41), the top of the funnel (6) is communicated with the screw conveyor (3), and the bottom of the funnel (6) extends into the interior of the cylinder (41).

8. The asphalt milling material crushing and screening device according to claim 1, characterized in that: The inner wall of the cylinder (41) is rotatably connected to a cover plate (45) via a hinge (46); the cover plate (45) and the drain outlet (44) match each other, and the hinge (46) is located at the front of the cover plate (45).

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