Recycling method and equipment of used sand waste

Abstract

The invention relates to an old sand waste recycling method which comprises the following operation steps: S1, starting a driving motor to drive transmission belt wheels at the two ends of a transmission rod to continuously rotate through mutual matching of two transmission gears under the matching of an output shaft and the transmission rod; s2, two transmission belt wheels on the front side and the rear side of the vibration assembly can be driven through a transmission belt, so that the vibration assembly continuously rotates; and S3, the vibration assembly rotates to drive the corresponding transmission roller to rotate. Under the action of the conveying assembly, crushed sand grains can be automatically output, centralized collection is facilitated, meanwhile, metal particles flowing out after crushing are driven upwards by a conveying belt running reversely under the cooperation of a magnetic attraction strip and a flow guide scraper blade, and are separated and collected from sand grains flowing downwards, so that the separation efficiency is effectively improved, and the labor intensity of workers is reduced. And meanwhile, the situation that the adsorption effect is reduced, even blockage is caused and the like due to continuous adsorption of the magnetic adsorption strips is avoided under cooperation of the flow guide scraper.

Description

Technical Field

[0001] The invention relates to the field of molding sand casting, and in particular to a method and equipment for recycling waste sand. Background Art

[0002] Sand casting uses molding sand as the molding material to make a mold, and then pours molten liquid metal into the mold to fill the mold. After the metal liquid cools, a casting with a certain shape is obtained, and the casting is obtained by breaking the molding sand. During the casting process, the high-temperature metal liquid exerts a strong thermal effect on the mold after being poured in. The molding sand after casting will bond with the high-temperature metal liquid and the binder to form molding sand clumps. After the molding sand clumps, it cannot be used again, which increases the casting cost and the discarded molding sand causes damage to the environment. The current old sand regeneration technology is a relatively mature process. The generated molding sand clumps are collected and crushed. After being crushed into a fine sand structure, the material is vibrated and discharged to achieve the purpose of recycling and reuse.

[0003] However, since the metal particles mixed in the existing molding sand will also enter the collection device after the molding sand agglomerates are crushed, a magnet component is provided in the existing discharge port to absorb the metal particles mixed in the crushed molding sand particles. However, the diameter of the discharge port is much larger than the size of the magnetic block, and it is difficult to ensure sufficient contact between the magnetic block and the metal in the molding sand particles, which not only reduces the metal removal effect, but also the magnetic block is fixed, and the metal particles adsorbed on its surface will cause accumulation, which not only blocks the discharge and causes blockage, but also greatly reduces the contact rate between the magnetic block and the molding sand particles and mixed metal particles, thereby greatly reducing the metal particle removal effect. Therefore, it is necessary to develop a method and equipment for the recycling of old sand waste to solve the shortcomings of the existing technology. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provides a method and equipment for recycling waste sand.

[0005] The present invention solves the above-mentioned technical problem with the following technical solution: A method for recycling waste sand, comprising the following steps: S1. Turn on the drive motor so that it drives the drive pulleys at both ends of the drive rod to rotate continuously through the cooperation of the output shaft and the drive rod through the interaction of the two transmission gears; S2. The transmission belt drives the two drive pulleys on the front and rear sides of the vibration assembly, thereby causing the vibration assembly to rotate continuously; S3. Due to the rotation of the vibration assembly drives the corresponding drive roller to rotate, and then with the cooperation of another drive roller, the conveyor belt runs continuously and smoothly; S4. At the same time, the vibration roller rotates, causing several vibration convex rollers embedded in the surface to hit the bottom of the hopper in turn, causing the crushing barrel and the hopper to vibrate as a whole, allowing the sand and other materials in the hopper to fall smoothly; S5. The old sand blocks to be recycled are then placed in the upper hopper and crushed by the crushing mechanism in the crushing barrel. The sand then flows out of the lower hopper and falls onto the conveyor assembly. S6. Under the action of gravity, sand and metal particles that fall into the conveyor assembly fall directly onto the inclined conveyor belt; S7. Under the action of gravity, the sand particles slide down the inclined conveyor belt surface and are finally removed from the conveyor belt by the one-way scraper for collection; S8. The metal particles on the surface of the conveyor belt are attracted by the magnetic strips and driven upward to the guide scraper. As the conveyor belt continues to run, the metal particles attracted by the magnetic strips are scraped off by the guide scraper and eventually fall into the inside of the material collection trough.

[0006] As a preferred technical solution of the present invention, a material receiving base is provided below the crushing barrel, a plurality of evenly distributed buffer support components are connected between the crushing barrel and the material receiving base, and the conveying component is provided between the crushing barrel and the material receiving base; A material receiving and collecting trough is provided inside the material receiving base, a driving mechanism is provided inside the material receiving and collecting trough, and the upper end of the driving mechanism is connected to the conveying component.

[0007] As a preferred technical solution of the present invention, a crushing mechanism is provided inside the crushing barrel, an upper hopper is provided on the top of the crushing barrel, and a lower hopper is integrally formed on the bottom of the crushing barrel, and the proximal ends of the upper and lower hoppers are respectively connected to the upper and lower ends of the crushing mechanism; The conveying assembly is arranged obliquely, the upper end of the conveying assembly is located directly below the lower hopper, and the lower end of the conveying assembly extends to the outside of the crushing barrel and the material receiving base.

[0008] As a preferred technical solution of the present invention, the buffer support assembly includes a positioning support rod fixedly connected to the top of the material receiving base and the outside of the material receiving and collecting trough, and a buffer support spring is wrapped around the outside of the positioning support rod. The lower end of the buffer support spring is abutted and connected to the top of the material receiving base, and the upper end of the buffer support spring is abutted and connected to the bottom of the crushing barrel.

[0009] As a preferred technical solution of the present invention, the conveying assembly includes a conveying frame fixedly mounted on the top of the material receiving base, a conveyor belt is movably mounted inside the conveying frame, and a plurality of evenly distributed magnetic strips are embedded in the outer surface of the conveyor belt, and the outer surface of the magnetic strips is smoothly connected to the outer surface of the conveyor belt; A guide scraper is fixedly installed on the upper end of the inner cavity of the conveyor frame, the lower end of the guide scraper is flush with the bottom of the upper end of the conveyor frame, and the upper end of the guide scraper is movably fitted to the bottom of the upper end of the conveyor belt.

[0010] As a preferred technical solution of the present invention, both ends of the conveyor belt are connected to a transmission roller, both ends of the transmission roller pass through the conveyor frame and extend to the front and rear sides of the conveyor frame respectively, and both ends of the transmission roller are rotatably connected to the inside of the conveyor frame through bearings; the inside of the conveyor frame is hinged with a number of one-way scrapers located above the conveyor belt and evenly distributed, and the bottom of the one-way scraper is in contact with the top of the conveyor belt.

[0011] As a preferred technical solution of the present invention, the driving mechanism includes a driving component installed at the bottom of the inner cavity of the material receiving and collecting trough, and the upper end of the driving component is connected to two front and rear vibration components, and the two vibration components are respectively fixedly connected to the front and rear ends of the transmission roller at the upper end of the conveyor belt, and the top of the vibration component is in rolling contact with the bottom of the lower hopper.

[0012] As a preferred technical solution of the present invention, the drive assembly includes a drive motor fixedly installed at the bottom of the material collection trough, the output end of the drive motor is fixedly connected to the output shaft, and a transmission rod is provided on the side of the drive motor and the output shaft. The outer surface of the output shaft and the transmission rod is fixedly sleeved with a transmission gear, and the two transmission gears are engaged with each other.

[0013] As a preferred technical solution of the present invention, a positioning frame is provided at both ends of the transmission rod, and the two ends of the transmission rod are rotatably connected to the positioning frame through bearings. The upper and lower ends of the facing surfaces of the two positioning frames are rotatably connected to a transmission pulley, the lower transmission pulley is fixedly connected to the two ends of the transmission rod, and the upper transmission pulley is fixedly connected to the vibration component, and a transmission belt is connected between the two corresponding upper and lower transmission pulleys.

[0014] As a preferred technical solution of the present invention, the vibration assembly includes a vibration roller fixedly connected between a transmission roller and a corresponding transmission pulley, a gap is left between the top of the vibration roller and the lower hopper, and a plurality of rotatably connected vibration convex rollers are embedded in the outer surface of the vibration roller, and the top of the vibration convex roller is in conflict with the lower hopper.

[0015] The beneficial effects of the present invention are: under the action of the conveying component, the crushed sand particles can be automatically output and conveniently collected; at the same time, with the cooperation of the magnetic strips and the guide scraper, the crushed metal particles flowing out are driven upward by the reverse-running conveyor belt and separated and collected from the downward-flowing sand particles, thereby effectively improving the separation efficiency; at the same time, with the cooperation of the guide scraper, the continuous adsorption of the magnetic strips is avoided, resulting in reduced adsorption effect and even blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a left side view of the present invention; Figure 4 It is a right side view of the present invention; Figure 5 This is a schematic diagram of the structure below the crushing barrel of the present invention; Figure 6 for Figure 5 a cross-sectional view of the front of the mid-structure; Figure 7 for Figure 6 Front view of the mid-section.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Crushing barrel; 2. Material receiving base; 3. Buffer support assembly; 31. Positioning support rod; 32. Buffer support spring; 4. Conveying assembly; 41. Conveying frame; 42. Conveyor belt; 43. Magnetic strip; 44. Guide scraper; 45. One-way scraper; 46. Drive roller; 5. Driving mechanism; 51. Driving assembly; 511. Driving motor; 512. Transmission gear; 513. Output shaft; 514. Transmission rod; 515. Positioning frame; 516. Transmission belt; 517. Transmission pulley; 52. Vibrating assembly; 521. Vibrating roller; 522. Vibrating convex roller; 6. Material receiving and collecting trough; 7. Upper hopper; 8. Lower hopper. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0020] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art will recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0021] Example 1 like Figures 1 to 7 As shown, a method for recycling waste sand includes the following steps: S1. Turn on the drive motor 511 so that the output shaft 513 and the transmission rod 514 cooperate with each other through the two transmission gears 512, driving the drive pulley 517 at both ends of the transmission rod 514 to rotate continuously; S2. The transmission belt 516 can drive the two transmission pulleys 517 on the front and rear sides of the vibration assembly 52, so that the vibration assembly 52 rotates continuously; S3. Due to the rotation of the vibration assembly 52, the corresponding drive roller 46 rotates, and then the conveyor belt 42 runs continuously and smoothly with the cooperation of another drive roller 46; S4. At the same time, the vibration roller 521 rotates, so that the surface of the vibration roller 522 embedded in the bottom of the hopper 8 is hit in sequence, so that the crushing barrel 1 and the lower hopper 8 as a whole vibrate, so that the sand and other particles in the lower hopper 8 fall smoothly; S5. The old sand blocks to be recycled are then placed in the upper hopper 7, crushed by the crushing mechanism in the crushing barrel 1, and then flow out from the lower hopper 8 and fall onto the conveying assembly 4; S6. Under the action of gravity, the sand and metal particles falling into the conveying assembly 4 fall directly onto the inclined conveyor belt 42; S7. Under the action of gravity, the sand slides along the inclined surface of the conveyor belt 42 and eventually leaves the conveyor belt 42 for collection through the one-way scraper 45; S8. The metal particles on the surface of the conveyor belt 42 are attracted by the magnetic strips 43 and driven upward to the guide scraper 44. As the conveyor belt 42 continues to run, the metal particles attracted by the magnetic strips 43 are scraped off by the guide scraper 44 and finally fall into the inside of the material collection trough 6. Under the action of the conveying component 4, the crushed sand particles can be automatically output and convenient for centralized collection. At the same time, with the cooperation of the magnetic strips 43 and the guide scraper 44, the crushed metal particles flowing out are driven upward by the reverse-running conveyor belt 42 and separated and collected from the downward-flowing sand particles, thereby effectively improving the separation efficiency. At the same time, with the cooperation of the guide scraper 44, the continuous adsorption of the magnetic strips 43 is avoided, which may reduce the adsorption effect or even cause blockage.

[0022] Among them, a material receiving base 2 is provided below the crushing barrel 1, a number of evenly distributed buffer support components 3 are connected between the crushing barrel 1 and the material receiving base 2, and a conveying component 4 is provided between the crushing barrel 1 and the material receiving base 2; A material receiving and collecting trough 6 is provided inside the material receiving and collecting trough 6 , and a driving mechanism 5 is provided inside the material receiving and collecting trough 6 . The upper end of the driving mechanism 5 is connected to the conveying assembly 4 .

[0023] The crushing barrel 1 is provided with a crushing mechanism inside, an upper hopper 7 is provided on the top of the crushing barrel 1, and a lower hopper 8 is integrally formed at the bottom of the crushing barrel 1. The adjacent ends of the upper hopper 7 and the lower hopper 8 are respectively connected to the upper and lower ends of the crushing mechanism; The conveying assembly 4 is arranged to be inclined, with the upper end of the conveying assembly 4 being located directly below the lower hopper 8 , and the lower end of the conveying assembly 4 extending to the outside of the crushing barrel 1 and the material receiving base 2 .

[0024] Among them, the buffer support assembly 3 includes a positioning support rod 31 fixedly connected to the top of the material receiving base 2 and the outside of the material receiving collecting trough 6, and a buffer support spring 32 is wound around the outside of the positioning support rod 31. The lower end of the buffer support spring 32 is abutted and connected to the top of the material receiving base 2, and the upper end of the buffer support spring 32 is abutted and connected to the bottom of the crushing barrel 1; due to the setting of the buffer support assembly 3, the crushing barrel 1 can be supported by the material receiving base 2 with the cooperation of the positioning support rod 31 and the buffer support spring 32, so that there is enough space between the crushing barrel 1 and the material receiving base 2 to ensure the installation and operation of the conveying assembly 4.

[0025] The conveying assembly 4 includes a conveying frame 41 fixedly mounted on the top of the receiving base 2. A conveyor belt 42 is movably mounted inside the conveying frame 41. A plurality of evenly distributed magnetic strips 43 are embedded in the outer surface of the conveyor belt 42. The outer surfaces of the magnetic strips 43 are smoothly connected to the outer surface of the conveyor belt 42. Due to the arrangement of the magnetic strips 43, the conveyor belt 42 drives the metal particles adsorbed thereon to move in a direction opposite to that of the sand particles, thereby separating the metal particles from the sand particles and improving the efficiency of the automated separation. A guide scraper 44 is fixedly installed at the upper end of the inner cavity of the conveyor frame 41, and the lower end of the guide scraper 44 is flush with the bottom of the upper end of the conveyor frame 41, and the upper end of the guide scraper 44 is movably fitted to the bottom of the upper end of the conveyor belt 42; due to the setting of the guide scraper 44, under the action of the continuously running conveyor belt 42, the metal particles adsorbed by the magnetic strips 43 on its surface can be scraped off by the guide scraper 44 and automatically fall into the material collection trough 6, while ensuring that the surface of the magnetic strips 43 is clean, so as to further adsorb the metal particles.

[0026] Among them, both ends of the conveyor belt 42 are driven and sleeved with a transmission roller 46, and the two ends of the transmission roller 46 pass through the conveyor frame 41 and extend to the front and rear sides of the conveyor frame 41 respectively. The two ends of the transmission roller 46 are rotatably sleeved on the inside of the conveyor frame 41 through bearings; the inside of the conveyor frame 41 is hinged with a number of one-way scrapers 45 located above the conveyor belt 42 and evenly distributed, and the bottom of the one-way scraper 45 is in contact with the top of the conveyor belt 42; due to the setting of the one-way scraper 45, the sand and particle mixture flowing out of the lower hopper 8 can be promoted to be quickly and evenly spread on the surface of the conveyor belt 42, ensuring that the mixed metal particles can contact the magnetic strip 43 in time, thereby improving the effect of adsorbing and removing metal particles.

[0027] Among them, the driving mechanism 5 includes a driving component 51 installed at the bottom of the inner cavity of the material receiving and collecting trough 6. The upper end of the driving component 51 is connected to two front and rear vibration components 52. The two vibration components 52 are respectively fixedly connected to the front and rear ends of the transmission roller 46 at the upper end of the conveyor belt 42. The top of the vibration component 52 is in rolling contact with the bottom of the lower hopper 8.

[0028] Among them, the driving component 51 includes a driving motor 511 fixedly installed at the bottom of the material collection trough 6, the output end of the driving motor 511 is fixedly connected to the output shaft 513, and a transmission rod 514 is provided on the side of the driving motor 511 and the output shaft 513. The outer surface of the output shaft 513 and the transmission rod 514 are fixedly sleeved with a transmission gear 512, and the two transmission gears 512 are engaged with each other.

[0029] Among them, a positioning frame 515 is provided at both ends of the transmission rod 514, and the two ends of the transmission rod 514 are rotatably connected to the positioning frame 515 through bearings. The upper and lower ends of the facing surfaces of the two positioning frames 515 are rotatably connected to a transmission pulley 517. The lower transmission pulley 517 is fixedly connected to the two ends of the transmission rod 514, and the upper transmission pulley 517 is fixedly connected to the vibration component 52. A transmission belt 516 is connected between the two corresponding upper and lower transmission pulleys 517.

[0030] Among them, the vibration component 52 includes a vibration roller 521 fixedly connected between the transmission roller 46 and a corresponding transmission pulley 517, and a gap is left between the top of the vibration roller 521 and the lower hopper 8. The outer surface of the vibration roller 521 is embedded with a plurality of vibration convex rollers 522 that are rotatably connected, and the top of the vibration convex roller 522 is in conflict with the lower hopper 8; due to the setting of the vibration component 52, under the action of the vibration roller 521 on its surface, the continuously rotating drive motor 511 can intermittently and continuously hit the lower hopper 8 through the plurality of vibration convex rollers 522 on its surface, causing the lower hopper 8 and the crushing barrel 1 to vibrate, thereby improving the smooth outflow of the sand mixture in the lower hopper 8.

[0031] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0032] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0033] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A method for recycling waste sand, characterized in that: The following steps are included: S1. Turn on the drive motor (511) so that the output shaft (513) and the transmission rod (514) cooperate with each other through the two transmission gears (512), driving the drive pulleys (517) at both ends of the transmission rod (514) to rotate continuously; S2. The two drive pulleys (517) on the front and rear sides of the vibration assembly (52) can be driven by the transmission belt (516), so that the vibration assembly (52) rotates continuously; S3. Since the rotation of the vibration assembly (52) drives the corresponding drive roller (46) to rotate, the conveyor belt (42) is continuously and smoothly operated in cooperation with another drive roller (46); S4. At the same time, the vibration roller (521) rotates, causing the several vibration convex rollers (522) embedded in the surface to hit the bottom of the lower hopper (8) in turn, causing the crushing barrel (1) and the lower hopper (8) to vibrate as a whole, so that the sand particles in the lower hopper (8) fall smoothly; S5. The old sand blocks to be recycled are then placed in the upper hopper (7), crushed by the crushing mechanism in the crushing barrel (1), and then flow out of the lower hopper (8) and fall onto the conveying assembly (4); S6. Under the action of gravity, the sand and metal particles falling into the conveying assembly (4) fall directly onto the inclined conveyor belt (42); S7. Under the action of gravity, the sand particles slide down the inclined surface of the conveyor belt (42) and eventually leave the conveyor belt (42) through the one-way scraper (45) for collection; S8. The metal particles on the surface of the conveyor belt (42) are attracted by the magnetic strip (43) and driven upward to the guide scraper (44). As the conveyor belt (42) continues to run, the metal particles attracted by the magnetic strip (43) are scraped off by the guide scraper (44) and eventually fall into the inside of the material collection trough (6).

2. The recycling equipment for waste sand according to claim 1, characterized in that: A material receiving base (2) is provided below the crushing barrel (1), a plurality of evenly distributed buffer support components (3) are connected between the crushing barrel (1) and the material receiving base (2), and the conveying component (4) is provided between the crushing barrel (1) and the material receiving base (2); A material receiving and collecting trough (6) is provided inside the material receiving and collecting trough (6), a driving mechanism (5) is provided inside the material receiving and collecting trough (6), and the upper end of the driving mechanism (5) is connected to the conveying assembly (4).

3. The recycling equipment for waste sand according to claim 2, characterized in that: A crushing mechanism is provided inside the crushing barrel (1), an upper hopper (7) is provided on the top of the crushing barrel (1), and a lower hopper (8) is integrally formed at the bottom of the crushing barrel (1), and the adjacent ends of the upper hopper (7) and the lower hopper (8) are respectively connected to the upper and lower ends of the crushing mechanism; The conveying assembly (4) is arranged in an inclined manner, the upper end of the conveying assembly (4) is located directly below the lower hopper (8), and the lower end of the conveying assembly (4) extends to the outside of the crushing barrel (1) and the material receiving base (2).

4. The recycling equipment for waste sand according to claim 2, characterized in that: The buffer support assembly (3) includes a positioning support rod (31) fixedly connected to the top of the material receiving base (2) and the outside of the material receiving and collecting trough (6); a buffer support spring (32) is wound around the outside of the positioning support rod (31); the lower end of the buffer support spring (32) is abutted and connected to the top of the material receiving base (2); and the upper end of the buffer support spring (32) is abutted and connected to the bottom of the crushing barrel (1).

5. The recycling equipment for waste sand according to claim 2, characterized in that: The conveying assembly (4) includes a conveying frame (41) fixedly mounted on the top of the material receiving base (2), a conveying belt (42) is movably mounted inside the conveying frame (41), and a plurality of evenly distributed magnetic strips (43) are embedded in the outer surface of the conveying belt (42), and the outer surface of the magnetic strips (43) is smoothly connected to the outer surface of the conveying belt (42); A guide scraper (44) is fixedly mounted on the upper end of the inner cavity of the conveying frame (41), the lower end of the guide scraper (44) is flush with the bottom of the upper end of the conveying frame (41), and the upper end of the guide scraper (44) is movably attached to the bottom of the upper end of the conveyor belt (42).

6. The recycling equipment for waste sand according to claim 5, characterized in that: Both ends of the conveyor belt (42) are connected to a transmission roller (46) for transmission sleeves. Both ends of the transmission roller (46) pass through the conveyor frame (41) and extend to the front and rear sides of the conveyor frame (41) respectively. Both ends of the transmission roller (46) are rotatably sleeved inside the conveyor frame (41) through bearings. The interior of the conveyor frame (41) is hinged with a plurality of one-way scrapers (45) located above the conveyor belt (42) and evenly distributed. The bottom of the one-way scraper (45) is in contact with the top of the conveyor belt (42).

7. The recycling equipment for waste sand according to claim 6, characterized in that: The driving mechanism (5) includes a driving assembly (51) installed at the bottom of the inner cavity of the material receiving and collecting trough (6), the upper end of the driving assembly (51) is connected to two front and rear vibration assemblies (52), the two vibration assemblies (52) are respectively fixedly connected to the front and rear ends of the transmission roller (46) at the upper end of the conveyor belt (42), and the top of the vibration assembly (52) is in rolling contact with the bottom of the lower hopper (8).

8. The recycling equipment for waste sand according to claim 7, characterized in that: The driving assembly (51) includes a driving motor (511) fixedly mounted on the bottom of the material receiving and collecting trough (6); an output end of the driving motor (511) is fixedly connected to an output shaft (513); a transmission rod (514) is provided on the side of the driving motor (511) and the output shaft (513); a transmission gear (512) is fixedly sleeved on the outer surface of each of the output shaft (513) and the transmission rod (514); and the two transmission gears (512) are meshed with each other.

9. The recycling equipment for waste sand according to claim 8, characterized in that: A positioning frame (515) is provided at both ends of the transmission rod (514), and both ends of the transmission rod (514) are rotatably connected to the positioning frame (515) through bearings. The upper and lower ends of the facing surfaces of the two positioning frames (515) are rotatably connected to a transmission pulley (517), the lower transmission pulley (517) is fixedly connected to both ends of the transmission rod (514), and the upper transmission pulley (517) is fixedly connected to the vibration component (52), and a transmission belt (516) is connected between the two corresponding upper and lower transmission pulleys (517).

10. The recycling equipment for waste sand according to claim 9, characterized in that: The vibration assembly (52) includes a vibration roller (521) fixedly connected between a transmission roller (46) and a corresponding transmission pulley (517), a gap is left between the top of the vibration roller (521) and the lower hopper (8), and a plurality of rotatably connected vibration convex rollers (522) are embedded in the outer surface of the vibration roller (521), and the top of the vibration convex roller (522) and the lower hopper (8) are in conflict with each other.

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