Impurity removal device for recycling waste asphalt mixture

Abstract

The invention discloses an impurity removal device for recycling a waste asphalt mixture. The impurity removal device comprises a bottom discharging mechanism; the air blowing separation mechanism is fixedly connected to the inner side of the bottom discharging mechanism; the grinding and crushing mechanism is mounted at the upper end of the bottom discharging mechanism through screws; the crushing mechanism is mounted at the upper end of the grinding and crushing mechanism through screws; and the secondary recycling mechanism is mounted at the right end of the crushing mechanism, and ground material particles with the same size can be discharged into the bottom discharging mechanism through the grinding and crushing mechanism for separation and recycling; and the air blowing separation mechanism can separate the ground asphalt particles and the crushed stone particles on the inner side of the bottom discharging mechanism, and by utilizing the condition that the asphalt particles and the crushed stone particles are the same in size and different in gravity, separation and recovery can be effectively carried out by utilizing wind power, so that the recovery is more efficient.

Description

Technical Field

[0001] The invention relates to the technical field of waste asphalt mixture recycling, in particular to an impurity removal device for recycling waste asphalt mixture. Background Art

[0002] The recycling of waste asphalt mixture refers to the process of excavating, recycling, crushing and screening waste asphalt pavement, and then remixing it with regeneration agent, new asphalt material, new aggregate, etc. in a certain proportion to form a mixture.

[0003] The existing Chinese patent CN117960757B disclosed an asphalt pavement recycling stone stripping equipment on May 28, 2024, which belongs to the field of asphalt crushing and recycling technology, including a crushing barrel, a stirring and crushing assembly and a separation barrel; the crushing barrel includes a main body barrel and a material distribution box; the material distribution box is sleeved on the lower part of the main body barrel; the stirring and crushing assembly includes a feed shaft, a spiral cutting blade and multiple groups of scissor blades; multiple groups of scissor blades are spaced apart on the upper part of the inner wall of the main body barrel; each group of scissor blades includes two spaced-apart scissor blades, and the spiral cutting blades are accommodated between the two scissor blades; the separation barrel includes an outer shell, an inner cylinder and a rotating shaft; a filter gap is opened on the side plate of the inner cylinder.

[0004] However, the above device rotates and crushes the asphalt material and the stone material through the spiral cutting blades accommodated between the two scissor blades, and after crushing, it is filtered and recovered through the filtering gap of the inner cylinder. During the recycling process, the asphalt material and the stone material cannot be separated and recovered efficiently, and the recycling is not very efficient.

[0005] Therefore, it is necessary to provide a waste asphalt mixture recycling device to solve the above technical problems. Summary of the Invention

[0006] The object of the present invention is to provide a device for removing impurities from waste asphalt mixtures for recycling, so as to solve the problem in the background art mentioned above that the existing devices are not very efficient in recycling asphalt materials.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for removing impurities from waste asphalt mixture for recycling, comprising:

[0008] Bottom discharge mechanism;

[0009] An air blowing and separating mechanism, wherein the air blowing and separating mechanism is fixedly connected to the inner side of the bottom discharge mechanism;

[0010] A grinding and crushing mechanism, which is mounted on the upper end of the bottom discharge mechanism by screws;

[0011] A crushing mechanism, the crushing mechanism being mounted on the upper end of the grinding and crushing mechanism by screws;

[0012] A secondary recovery mechanism, the secondary recovery mechanism being mounted on the right end of the crushing mechanism;

[0013] A discharge mechanism, which is mounted on the upper end of the crushing mechanism by screws and is connected to the secondary recovery mechanism;

[0014] a material receiving and conveying mechanism, wherein the material receiving and conveying mechanism is fixedly connected to the outer end of the material discharging mechanism;

[0015] The lifting magnetic mechanism is installed and connected to the inner side of the upper end of the material receiving and conveying mechanism.

[0016] Furthermore, the bottom discharge mechanism includes a four-hole mounting base plate, the upper end of the four-hole mounting base plate is fixedly connected to the bottom casing, the inner side of the lower end of the bottom casing is fixedly connected to a gravel discharge cover, a bottom sleeve groove is opened between the bottom casing and the four-hole mounting base plate, a second belt conveyor is installed on the inner side of the bottom sleeve groove below the gravel discharge cover, the right end of the bottom casing is fixedly connected to a discharge hollow cover, the inner side of the bottom casing is installed with a blowing separation mechanism, and the upper end of the bottom casing is installed with a grinding and crushing mechanism.

[0017] Furthermore, the blowing separation mechanism includes a circular sleeve, which is fixed to the upper end of the bottom casing, and an L-shaped partition plate is fixed to the right side of the lower end of the circular sleeve. An asphalt particle recovery cover is opened inside the L-shaped partition plate, and the lower end of the L-shaped partition plate is fixed to the inner end of the discharge hollow cover. The left side of the L-shaped partition plate is located on the bottom casing and a fan is installed by screws.

[0018] Furthermore, the grinding and crushing mechanism includes an intermediate casing, the lower end of the intermediate casing is mounted on the bottom casing by screws, the inner wall of the intermediate casing is fixedly connected with a collecting shell, the lower end of the collecting shell is fixedly connected with a grinding roller shell, a grinding roller body is movably installed inside the grinding roller shell, the right end of the grinding roller body is fixedly connected with a first coupling, the right end of the first coupling is located on the intermediate casing and a grinding motor is mounted with screws, and the upper end of the intermediate casing is mounted with a crushing mechanism by screws.

[0019] Furthermore, the crushing mechanism includes a hollow upper casing, the lower end of the hollow upper casing is mounted on the middle casing through screws on the bottom connecting plate, the interior of the hollow upper casing is fixedly connected with an inclined filter screen plate, two crushing rollers are installed above the inclined filter screen plate, the outer ends of the crushing rollers are located on the hollow upper casing and a crushing motor is installed by screws, the lowest point of the inclined filter screen plate is located on the hollow upper casing and a secondary recovery mechanism is screwed on the hollow upper casing, and the upper end of the hollow upper casing is installed with a material receiving and conveying mechanism.

[0020] Furthermore, the secondary recovery mechanism includes a material receiving connecting pipe installed on the hollow upper casing by screws, the outer end of the material receiving connecting pipe is fixedly connected to the screw conveyor body, the upper end outer wall of the screw conveyor body is fixedly connected to a discharge inclined pipe, the upper end of the screw conveyor body is fixedly connected to a recovery motor by screws, and the discharge inclined pipe is installed and connected to the material receiving conveying mechanism.

[0021] Furthermore, the material receiving and conveying mechanism includes a conveying hopper, a circular connecting plate is fixedly connected to the peripheral side of the lower end of the conveying hopper, a collecting cone shell is fixed through the lower end of the conveying hopper, the conveying hopper is installed and connected to the hollow upper casing through the circular connecting plate, the conveying hopper is installed and connected to the discharge inclined pipe by screws, and a material receiving and conveying mechanism is installed at the material receiving port of the conveying hopper.

[0022] Furthermore, the material receiving and conveying mechanism includes a conveying cover shell that is fixedly connected to the conveying hopper, a first belt conveyor is installed inside the conveying cover shell, a feed connecting pipe is fixedly connected to the conveying cover shell above the input end of the first belt conveyor, and a lifting magnetic mechanism is installed on the conveying cover shell above the first belt conveyor.

[0023] Furthermore, the lifting magnetic mechanism includes a first electric telescopic cylinder, which is installed on the conveying cover by screws. The telescopic rod end of the first electric telescopic cylinder is located inside the conveying cover and is installed with a plastic shell. The lower end of the plastic shell is adhered and fixed to the inner side with an adsorption magnetic panel.

[0024] Furthermore, an inspection panel is installed at the upper slot of the conveying cover by screws.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The grinding and crushing mechanism can discharge the ground material particles of the same size into the bottom discharge mechanism for separation and recovery. The blowing separation mechanism can separate the ground asphalt particles and gravel particles inside the bottom discharge mechanism. By taking advantage of the fact that asphalt particles and gravel particles are of the same size but have different gravity, the wind power can be used to effectively separate and recover them, which makes the recovery more efficient.

[0027] 2. Through the sequential processing of the lifting magnetic mechanism, the crushing mechanism and the grinding and crushing mechanism, the overall recycling efficiency can be effectively improved. The lifting magnetic mechanism can effectively absorb metal objects, thus preventing the crushing mechanism and the grinding and crushing mechanism from being damaged by large metal objects during processing;

[0028] 3. Through the secondary recovery mechanism structure, the crushed materials can be recycled for the second time, thus avoiding the situation where large particles will cause the grinding and crushing mechanism to jam;

[0029] 4. Through overall automation, the overall recycling efficiency is effectively improved and the labor intensity and labor costs of personnel are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the combined structure of the material receiving and conveying mechanism, the lifting magnetic mechanism, the material discharging mechanism and the secondary recovery mechanism of the present invention;

[0033] Figure 3 It is a schematic diagram of the combined structure of the crushing mechanism and the secondary recovery mechanism of the present invention;

[0034] Figure 4 It is a schematic cross-sectional structure diagram of the grinding and crushing mechanism of the present invention;

[0035] Figure 5 It is a schematic diagram of the combined structure of the bottom discharge mechanism and the blowing separation mechanism of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the blowing separation mechanism of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the lifting magnetic mechanism of the present invention.

[0038] Figure: 1, feed connection pipe; 2, conveying cover; 21, first belt conveyor; 3, first electric telescopic cylinder; 31, plastic shell; 32, adsorption magnet panel; 4, conveying hopper; 41, return connection plate; 42, collecting cone shell; 5, screw conveyor body; 51, discharge tilt pipe; 52, receiving connection pipe; 53, recycling motor; 6, hollow upper shell; 61, crushing motor; 62, bottom connection plate; 63, crushing rotor Roller; 64, inclined filter screen; 7, intermediate housing; 71, collecting housing; 72, first coupling; 73, grinding motor; 74, grinding roller body; 75, grinding roller housing; 8, bottom housing; 81, discharge hollow cover; 811, asphalt particle recovery cover; 812, L-shaped partition plate; 82, fan; 83, four-hole mounting base; 84, circular housing; 85, bottom sleeve; 9, second belt conveyor; 91, gravel discharge cover. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-Figure 7 The present invention provides a technical solution: a waste asphalt mixture recycling device, including a bottom discharge mechanism, a blowing separation mechanism, a grinding and crushing mechanism, a crushing mechanism, a secondary recovery mechanism, a discharge mechanism, a material receiving and conveying mechanism and a lifting magnetic mechanism.

[0042] The blowing separation mechanism is fixed on the inner side of the bottom discharge mechanism. The blowing separation mechanism can separate the ground asphalt particles and crushed stone particles on the inner side of the bottom discharge mechanism. By taking advantage of the fact that the asphalt particles and crushed stone particles are of the same size but have different gravity, the wind force can be used to effectively separate and recycle them, which makes the recycling more efficient. The grinding and crushing mechanism is installed on the upper end of the bottom discharge mechanism by screws. The grinding and crushing mechanism can discharge the material particles of the same size after grinding into the bottom discharge mechanism for separation and recovery. The crushing mechanism is installed on the upper end of the grinding and crushing mechanism by screws. The crushing mechanism can transport the crushed asphalt recycled material to the grinding and crushing mechanism, which can be ground into material particles of the same size through the grinding and crushing mechanism. The secondary recovery mechanism is installed on the right end of the crushing mechanism. The secondary recovery mechanism can recycle the unfiltered asphalt recycled materials in the crushing mechanism for secondary crushing, so as to meet the filtration emission standards and effectively reduce the jamming phenomenon during grinding. The discharge mechanism is installed on the upper end of the crushing mechanism by screws. The discharge mechanism can transport the asphalt recycled materials to the crushing mechanism for crushing. The discharge mechanism is connected to the secondary recovery mechanism. The discharge mechanism can receive the materials recovered by the secondary recovery mechanism for secondary feeding. The material receiving and conveying mechanism is fixed on the outer end of the discharge mechanism. The material receiving and conveying mechanism can transport the received asphalt materials to the discharge mechanism. The lifting magnetic mechanism is installed and connected to the inner side of the upper end of the material receiving and conveying mechanism. The lifting magnetic mechanism can adsorb the metal of the asphalt material transported by the material receiving and conveying mechanism, thereby avoiding damage to the grinding and crushing components.

[0043] The bottom discharge mechanism includes a four-hole mounting base plate 83, which can be installed in a designated position by screws. The upper end of the four-hole mounting base plate 83 is fixedly connected to the bottom casing 8. After being placed, the four-hole mounting base plate 83 can drive the bottom casing 8 to be stably placed. A gravel discharge cover 91 is fixedly connected to the inner side of the lower end of the bottom casing 8. A bottom sleeve groove 85 is provided between the bottom casing 8 and the four-hole mounting base plate 83, so that it can be limitedly installed. The second belt conveyor 9 is installed on the inner side of the bottom sleeve groove 85 below the gravel discharge cover 91. The material cover 91 can transport the discharged gravel to the second belt conveyor 9, and then it can be transported to the outside through the second belt conveyor 9. The right end of the bottom casing 8 is fixedly connected with a discharge hollow cover 81. The bottom casing 8 can discharge the recovered asphalt material particles through the discharge hollow cover 81. The inner side of the bottom casing 8 is installed with a blowing separation mechanism. The bottom casing 8 can effectively separate the gravel particles and asphalt particles through the blowing separation mechanism. The upper end of the bottom casing 8 is installed with a grinding and crushing mechanism. The bottom casing 8 can receive the grinding particles transported by the grinding and crushing mechanism for separation.

[0044] The blowing separation mechanism includes a return-shaped shell 84, which is fixed to the upper end of the bottom casing 8, so that the return-shaped shell 84 can stably receive the grinding particles discharged by the grinding and crushing mechanism on the bottom casing 8. An L-shaped partition plate 812 is fixed to the right side of the lower end of the return-shaped shell 84. The return-shaped shell 84 can separate the interior of the bottom casing 8 through the L-shaped partition plate 812. An asphalt particle recovery cover 811 is provided inside the L-shaped partition plate 812. The L-shaped partition plate 812 can receive asphalt particles through the asphalt particle recovery cover 811. The L-shaped partition plate 812 The lower end is fixed to the inner end of the discharge hollow cover 81, so that the asphalt particles can be discharged and recovered through the discharge hollow cover 81 at the lower end of the L-shaped partition plate 812. The left side of the L-shaped partition plate 812 is located on the bottom casing 8 and a fan 82 is installed by screws. When the particulate material dropped by the return sleeve 84 passes through the wind blown by the fan 82, the asphalt particles will pass through the asphalt particle recovery cover 811 of the L-shaped partition plate 812 due to the wind force for recovery, and the gravel particles will fall into the inside of the bottom casing 8, and then be discharged through the gravel discharge cover 91 of the bottom casing 8.

[0045] Example 2

[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 7The grinding and crushing mechanism includes an intermediate casing 7, the lower end of which is mounted on the bottom casing 8 by screws. The intermediate casing 7 can transport the ground and crushed materials to the bottom casing 8. The inner wall of the intermediate casing 7 is fixedly connected with a collecting shell 71, which can collect the preliminarily crushed asphalt materials. The lower end of the collecting shell 71 is fixedly connected with a grinding roller shell 75, so that the materials are collected and discharged into the grinding roller shell 75. The grinding roller body 74 is movably installed inside the grinding roller shell 75. There is a grinding roller shell 75 between the grinding roller shell 75 and the grinding roller body 74. Gap, so that the asphalt crushed material forms particles of the same size after passing through the grinding gap. The right end of the grinding roller body 74 is fixed with a first coupling 72. The grinding roller body 74 rotates through the rotation of the first coupling 72, so that it can rotate and grind. The right end of the first coupling 72 is located on the middle casing 7 and a grinding motor 73 is installed by screws. The first coupling 72 is rotated by the output shaft of the grinding motor 73. The upper end of the middle casing 7 is installed with a crushing mechanism by screws. The middle casing 7 can receive the asphalt material crushed by the crushing mechanism for grinding and crushing.

[0047] The crushing mechanism includes a hollow upper casing 6, the lower end of which is mounted on the middle casing 7 via screws on the bottom connecting plate 62. The hollow upper casing 6 can transport the crushed material into the middle casing 7. An inclined filter screen 64 is fixedly connected to the interior of the hollow upper casing 6, thereby filtering the crushed asphalt material. Two crushing rollers 63 are mounted above the inclined filter screen 64. The asphalt material can be crushed by interlacing the two crushing rollers 63. The outer ends of the crushing rollers 63 are located on the hollow upper casing 6 and are screwed to the bottom connecting plate 62. The crushing motor 61 is installed with screws, and the crushing roller 63 is fixed to the output shaft of the crushing motor 61, so that the output shaft of the crushing motor 61 can drive the crushing roller 63 to rotate and crush during rotation. The lowest point of the inclined filter plate 64 is located on the hollow upper shell 6, and a secondary recovery mechanism is installed with screws. The asphalt material not filtered by the inclined filter plate 64 can be recycled through the secondary recovery mechanism. The upper end of the hollow upper shell 6 is installed with a material receiving and conveying mechanism, and the hollow upper shell 6 can receive the material conveyed by the material receiving and conveying mechanism.

[0048] The lifting magnetic mechanism includes a first electric telescopic cylinder 3, which is installed on the conveying cover 2 by screws. The first electric telescopic cylinder 3 can stably extend and retract on the conveying cover 2. The telescopic rod end of the first electric telescopic cylinder 3 is located inside the conveying cover 2 and is installed with a plastic shell 31. When the telescopic rod of the first electric telescopic cylinder 3 is extended, it drives the plastic shell 31 to move downward inside the conveying cover 2, thereby changing the adsorption height position. The inner side of the lower end of the plastic shell 31 is adhered and fixed with an adsorption magnetic panel 32. The plastic shell 31 can magnetically attract metal objects in the asphalt material through the magnetic attraction of the adsorption magnetic panel 32, thereby effectively protecting subsequent crushing and grinding components.

[0049] Example 3

[0050] like Figure 1-Figure 3 , the material receiving and conveying mechanism includes a conveying cover 2 that is fixedly connected to the conveying hopper 4. The material inside the conveying cover 2 will not be blocked when being conveyed to the conveying hopper 4. A first belt conveyor 21 is installed inside the conveying cover 2. The conveying cover 2 can convey asphalt materials through the first belt conveyor 21 inside. A feed connecting pipe 1 is fixedly connected to the conveying cover 2 above the input end of the first belt conveyor 21. The asphalt material received by the feed connecting pipe 1 can be discharged into the first belt conveyor 21 for transportation. A lifting magnetic mechanism is installed on the conveying cover 2 above the first belt conveyor 21. The asphalt material on the first belt conveyor 21 can remove internal metal objects when passing through the lifting magnetic mechanism.

[0051] An inspection panel is installed at the slot hole at the upper end of the conveying cover 2 by screws, which makes it easy for personnel to open it for inspection.

[0052] The material receiving and conveying mechanism includes a conveying hopper 4, and a material receiving and conveying mechanism is installed at the material receiving port of the conveying hopper 4, so that the asphalt material discharged by the material receiving and conveying mechanism can be discharged through the conveying hopper 4, and a circular connecting plate 41 is fixedly connected to the peripheral side of the lower end of the conveying hopper 4. The conveying hopper 4 is installed and connected to the hollow upper casing 6 through the circular connecting plate 41, so that it can be installed and connected accordingly. The lower end of the conveying hopper 4 is fixedly connected with a collecting cone shell 42. The asphalt material inside the conveying hopper 4 can be collected and discharged into the hollow upper casing 6 through the collecting cone shell 42 for crushing. The conveying hopper 4 is installed and connected to the discharge inclined pipe 51 by screws. The conveying hopper 4 can receive the asphalt material discharged by the discharge inclined pipe 51 for secondary discharge and crushing and conveying.

[0053] The secondary recovery mechanism includes a material receiving connecting pipe 52 installed on the hollow upper casing 6 by screws. The unfiltered asphalt material inside the hollow upper casing 6 can be effectively received and recovered through the material receiving connecting pipe 52. The outer end of the material receiving connecting pipe 52 is fixedly connected to the screw conveyor body 5. The material receiving connecting pipe 52 can transport the recovered asphalt material to the screw conveyor body 5. The upper end outer wall of the screw conveyor body 5 is fixedly connected to a discharge inclined pipe 51. The asphalt material transported by the screw rotating inside the screw conveyor body 5 can be discharged through the discharge inclined pipe 51. The discharge inclined pipe 51 is installed and connected to the material receiving and conveying mechanism so that corresponding discharge and recovery can be achieved. A recovery motor 53 is installed on the upper end of the screw conveyor body 5 by screws. The spiral conveying rod inside the screw conveyor body 5 is rotated by the output shaft of the recovery motor 53, so that it can be spirally rotated to recycle and feed.

[0054] Working principle: When in use, the receiving and conveying mechanism can convey the received asphalt material to the discharging mechanism, and the lifting magnetic mechanism can absorb the metal of the asphalt material conveyed by the receiving and conveying mechanism, so as to avoid damage to the grinding and crushing components. The discharging mechanism can convey the recycled asphalt material to the crushing mechanism for crushing. The discharging mechanism is connected to the secondary recovery mechanism. The discharging mechanism can receive the material recovered by the secondary recovery mechanism for secondary feeding. The crushing mechanism can convey the crushed recycled asphalt material to the grinding and crushing mechanism. The grinding and crushing mechanism is installed on the upper end of the bottom discharging mechanism by screws. The grinding and crushing mechanism can discharge the material particles of the same size after grinding into the bottom discharging mechanism for separation and recovery. The blowing separation mechanism can separate the ground asphalt particles and gravel particles on the inner side of the bottom discharging mechanism. The asphalt particles and gravel particles are of the same size but have different gravity, so that the wind force can be used to effectively separate and recover them, which is more efficient in recycling.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for removing impurities from waste asphalt mixtures, characterized in that: include: Bottom discharge mechanism; An air blowing and separating mechanism, wherein the air blowing and separating mechanism is fixedly connected to the inner side of the bottom discharge mechanism; A grinding and crushing mechanism, which is mounted on the upper end of the bottom discharge mechanism by screws; A crushing mechanism, the crushing mechanism being mounted on the upper end of the grinding and crushing mechanism by screws; A secondary recovery mechanism, the secondary recovery mechanism being mounted on the right end of the crushing mechanism; A discharge mechanism, which is mounted on the upper end of the crushing mechanism by screws and is connected to the secondary recovery mechanism; a material receiving and conveying mechanism, wherein the material receiving and conveying mechanism is fixedly connected to the outer end of the material discharging mechanism; The lifting magnetic mechanism is installed and connected to the inner side of the upper end of the material receiving and conveying mechanism.

2. The impurity removal device for recycling waste asphalt mixture according to claim 1, characterized in that: The bottom discharge mechanism comprises a four-hole mounting base plate (83), the upper end of the four-hole mounting base plate (83) is fixedly connected to a bottom casing (8), the inner side of the lower end of the bottom casing (8) is penetrated and fixedly connected to a crushed stone discharge cover (91), a bottom sleeve groove (85) is provided between the bottom casing (8) and the four-hole mounting base plate (83), a second belt conveyor (9) is installed on the inner side of the bottom sleeve groove (85) below the crushed stone discharge cover (91), a hollow discharge cover (81) is penetrated and fixedly connected to the right end of the bottom casing (8), a blowing separation mechanism is installed on the inner side of the bottom casing (8), and a grinding and crushing mechanism is installed on the upper end of the bottom casing (8).

3. The impurity removal device for recycling waste asphalt mixture according to claim 1 or 2, characterized in that: The blowing and separating mechanism comprises a circular casing (84), the circular casing (84) being fixed to the upper end of the bottom casing (8), an L-shaped partition plate (812) being fixed to the right side of the lower end of the circular casing (84), an asphalt particle recovery cover (811) being provided inside the L-shaped partition plate (812), the lower end of the L-shaped partition plate (812) being fixed to the inner end of the discharge hollow cover (81), and a fan (82) being mounted on the left side of the L-shaped partition plate (812) on the bottom casing (8) via screws.

4. The impurity removal device for recycling waste asphalt mixture according to claim 3 is characterized in that: The grinding and crushing mechanism comprises an intermediate housing (7), the lower end of the intermediate housing (7) is mounted on the bottom housing (8) by screws, the inner wall of the intermediate housing (7) is fixedly connected to a collecting housing (71), the lower end of the collecting housing (71) is fixedly connected to a grinding roller housing (75), a grinding roller body (74) is movably mounted inside the grinding roller housing (75), the right end of the grinding roller body (74) is fixedly connected to a first coupling (72), the right end of the first coupling (72) is located on the intermediate housing (7) and is fixedly mounted to a grinding motor (73) by screws, and the upper end of the intermediate housing (7) is fixedly mounted to a grinding mechanism by screws.

5. The impurity removal device for recycling waste asphalt mixture according to claim 4, characterized in that: The pulverizing mechanism comprises a hollow upper casing (6), the lower end of the hollow upper casing (6) is mounted on the middle casing (7) via screws on a bottom connecting plate (62), an inclined filter screen plate (64) is fixedly connected to the interior of the hollow upper casing (6), two pulverizing rollers (63) are mounted above the inclined filter screen plate (64), the outer ends of the pulverizing rollers (63) are located on the hollow upper casing (6) and a pulverizing motor (61) is mounted via screws, the lowest point of the inclined filter screen plate (64) is located on the hollow upper casing (6), a secondary recovery mechanism is mounted via screws, and a material receiving and conveying mechanism is mounted on the upper end of the hollow upper casing (6).

6. The impurity removal device for recycling waste asphalt mixture according to claim 5, characterized in that: The secondary recovery mechanism comprises a material receiving connection pipe (52) mounted on a hollow upper casing (6) by screws, the outer end of the material receiving connection pipe (52) is passed through and fixedly connected to a screw conveyor body (5), the upper end outer wall of the screw conveyor body (5) is passed through and fixedly connected to a material discharging inclined pipe (51), the upper end of the screw conveyor body (5) is mounted with a recovery motor (53) by screws, and the material discharging inclined pipe (51) is mounted and connected to the material receiving and conveying mechanism.

7. The impurity removal device for recycling waste asphalt mixture according to claim 6, characterized in that: The material receiving and conveying mechanism comprises a conveying hopper (4), a circular connecting plate (41) is fixedly connected to the circumference of the lower end of the conveying hopper (4), a collecting cone shell (42) is fixedly connected to the lower end of the conveying hopper (4), the conveying hopper (4) is installed and connected to the hollow upper casing (6) through the circular connecting plate (41), the conveying hopper (4) is installed and connected to the discharge inclined pipe (51) through screws, and a material receiving and conveying mechanism is installed at the material receiving port of the conveying hopper (4).

8. The impurity removal device for recycling waste asphalt mixture according to claim 7, characterized in that: The material receiving and conveying mechanism comprises a conveying cover (2) which is fixedly connected to a conveying hopper (4); a first belt conveyor (21) is installed inside the conveying cover (2); a feed connecting pipe (1) is fixedly connected to the conveying cover (2) above the input end of the first belt conveyor (21); and a lifting magnetic mechanism is installed on the conveying cover (2) above the first belt conveyor (21).

9. The impurity removal device for recycling waste asphalt mixture according to claim 8, characterized in that: The lifting magnetic mechanism comprises a first electric telescopic cylinder (3), the first electric telescopic cylinder (3) being mounted on a conveying cover (2) by means of screws, the telescopic rod end of the first electric telescopic cylinder (3) being located inside the conveying cover (2) and being mounted with a plastic shell (31), the lower end of the plastic shell (31) being adhesively fixed to the inner side thereof with an adsorption magnetic panel (32).

10. The impurity removal device for recycling waste asphalt mixture according to claim 8, characterized in that: An inspection panel is mounted on the upper slot of the conveying cover (2) via screws.

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