Construction waste recycling and recovery equipment

Abstract

This invention provides a construction waste recycling and recovery device, comprising: a base plate and an outer cover. The outer cover is disposed on the top side of the base plate. Inside the outer cover, a filter cylinder is rotatably disposed on the left end via two fixed rings. A toothed ring is fixedly disposed on the middle of the surface of the filter cylinder. A blockage removal mechanism is disposed at the top of the filter cylinder. The blockage removal mechanism includes: a bearing seat, a rotating shaft, brushes, and a driven gear. The bearing seat is fixedly disposed on the top of the two fixed rings. A rotating shaft is rotatably disposed between the two fixed rings. A plurality of brushes are equidistantly arranged around the surface of the rotating shaft. A driven gear is fixedly disposed on the middle of the rotating shaft, and the driven gear meshes with the toothed ring. This construction waste recycling and recovery device is highly feasible and realizes integrated continuous operation of construction waste screening, blockage removal, magnetic separation, floating material collection, and sediment separation, further improving the efficiency and quality of construction waste recycling and meeting the development needs of environmental protection technology and resource recycling technology promotion services.

Description

Technical Field

[0001] This invention relates to the field of environmental protection technology, and more specifically, to a recycling and recovery device for construction waste. Background Technology

[0002] With the acceleration of urbanization, the total amount of construction waste generated during construction projects has been increasing year by year. Construction waste contains a large amount of recyclable materials (such as concrete blocks, metals, fine sand, etc.). Recycling it can not only reduce resource waste, but also reduce environmental pollution. It is an important application area for the promotion and service of environmental protection technology and resource recycling technology. Therefore, construction waste recycling equipment has been widely used.

[0003] In the prior art, for example, Chinese patent CN120755159B discloses a construction waste recycling device. The published document describes a primary sorting process using a filter cylinder to separate small-particle waste such as slag, allowing it to be collected separately. However, in actual use, the screening holes of the horizontal filter cylinder are prone to clogging because construction waste has a complex composition, often containing large amounts of mortar particles, fine sand, and plastic film. When these materials are screened through the horizontal filter cylinder,… On the one hand, small-particle materials such as fine sand and sludge tend to accumulate in the screening holes, especially when the construction waste has a high mud content. The mud and slurry will adhere to the inner wall of the screening holes, forming a sticky blockage. On the other hand, some irregularly shaped small particles will get stuck in the screening holes, and the material being transported later will further accumulate at the blockage point, causing the screening holes to be completely blocked and unable to achieve normal screening function. Furthermore, the horizontal filter cylinder structure in the publicly disclosed document uses rotation for screening, but in actual use, it becomes increasingly clogged and sticky with each rotation, requiring shutdown for cleaning, which seriously affects the recycling efficiency. In addition, the publicly disclosed document also uses a first belt conveyor and a second belt conveyor in conjunction with an adsorption magnet to separate metal materials in the waste. However, in actual use, the belt conveyor is not equipped with an interception structure, and the material is easily scattered due to vibration and impact, forming a magnetic separation blind zone, resulting in missed metals. At the same time, the belt support is weak, and it is prone to sagging and collapsing under heavy load, exacerbating material scattering and affecting the magnetic separation effect, reducing the stability of the equipment. In addition, the publicly available documents state that the drive gear and the second gear ring are exposed to water mist and splashing mud for a long time, lacking waterproof covers and anti-corrosion treatment, making them extremely prone to rusting and jamming, leading to transmission failure. At the same time, the waterproof expansion joint is installed at the bottom of the liquid separation chamber in the dirtiest position, where mud and debris easily accumulate and wrap around its sealing ring, causing sealing failure and expansion jamming. Summary of the Invention

[0004] The present invention aims to solve the technical problems mentioned in the background art and improves upon the Chinese patent with patent publication number CN120755159B to provide a construction waste recycling and recovery device.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction waste recycling and recovery device, comprising: a base plate and an outer cover, wherein the outer cover is provided on the top side of the base plate, and a filter cylinder is rotatably provided inside the left end of the outer cover via two fixed rings, and a toothed ring is fixedly provided at the middle of the surface of the filter cylinder;

[0006] The top of the filter cylinder is provided with a cleaning mechanism, which includes: a bearing seat, a rotating shaft, a brush and a driven gear. The top of the left and right fixed rings is fixedly provided with a bearing seat, and a rotating shaft is rotatably provided between the left and right fixed rings. Several brushes are equidistantly arranged around the surface of the rotating shaft, and a driven gear is fixedly provided at the middle of the rotating shaft. The driven gear is meshed with a gear ring.

[0007] The outer cover has a first conveyor and a second conveyor arranged sequentially on the right side. Both the first and second conveyors are equipped with an interception support mechanism. The interception support mechanism includes an interception bar, a front plate, a rear plate, and a support plate. Several interception bars are fixedly arranged at equal intervals on the surface of the first belt. A front plate is arranged between the front ends of the driving roller and the driven roller, and a rear plate is arranged between the rear ends of the driving roller and the driven roller. A support plate is fixedly arranged between the side walls of the front plate and the rear plate.

[0008] A separation tank is provided at the middle of the top side of the base plate, and a waterproof transmission mechanism is provided above the separation tank. The waterproof transmission mechanism includes: a fixed frame, a drive motor, a U-shaped seat and a protective cover. A fixed frame is provided at the middle of the bottom side of the outer cover, a drive motor is provided at the front end of the inside of the fixed frame, a U-shaped seat is provided at the middle of the inside of the fixed frame, and a protective cover is provided at the top of the U-shaped seat.

[0009] The separator has a guide cylinder in the center, and a lifting mechanism is provided between the guide cylinder and the interior of the separator. The lifting mechanism includes a movable ring, an air bladder, a collection trough, a slider, a slide rail, and a waterproof expansion joint. The movable ring is slidably provided on the outer wall of the guide cylinder. The movable ring is connected to an air bladder via a connecting rod. A collection trough is provided between the left rear side of the inner wall of the air bladder and the left rear side of the outer wall of the movable ring. Slider blocks are provided on both the left and right sides of the air bladder. Slide rails are provided on both the left and right inner walls of the separator. A waterproof expansion joint is provided at the top of the slide rail on the left side.

[0010] Furthermore, the filter cylinder has several screening holes equidistantly arranged around its surface, and the brush is made of nylon filaments with a length greater than the wall thickness of the filter cylinder and extending into the screening holes.

[0011] Furthermore, the second conveyor is equipped with a permanent magnet inside. Both the first and second conveyors include a drive roller, a driven roller, and a first belt. The drive roller is located inside the right end of the outer cover and is driven by a motor embedded in the outer cover. The driven roller is located to the left of the drive roller. A first belt is provided for transmission between the drive roller and the driven roller. The support plate of the second conveyor is equipped with a permanent magnet.

[0012] Furthermore, the protective cover is provided with a driving pulley, a tension pulley, a driven pulley, and a second belt in sequence. The driving pulley is driven by a drive motor, the tension pulley is located at the front end of the U-shaped seat, and the driven pulley is located at the rear end of the U-shaped seat. The driving pulley, the tension pulley, and the driven pulley are connected by a second belt in sequence for transmission.

[0013] Furthermore, a rotating rod is provided at the lower end of the driven pulley, the output end of the third discharge hopper is located inside the separation tank, the end of the rotating rod extends into the guide cylinder and is provided with spiral blades, the bottom end of the guide cylinder is open and there is a gap between it and the bottom side of the separation tank, and a downwardly inclined discharge pipe is provided through the upper right end of the guide cylinder.

[0014] Furthermore, the lifting mechanism also includes connecting rods, with six connecting rods equidistantly arranged around the outer wall of the movable ring, and the slider is slidably mounted on the slide rail.

[0015] Furthermore, the collection tank is made of polypropylene, and a water filter hole is provided on the bottom side of the collection tank. The height of the collection tank is higher than the thickness of the airbag. The telescopic end of the waterproof telescopic device is connected to the top side of the slider located on the left side. A viewing window for taking out the collection tank is provided on the left rear outer wall of the separation tank through a hinge. The height of the viewing window is higher than the highest position of the collection tank.

[0016] Furthermore, a third recycling box is provided at the right end of the bottom side of the base plate, the output end of the discharge pipe is located above the third recycling box, and a water pump is embedded in the rear end of the base plate. The water pump is connected to the bottom of the separation tank through a pipeline.

[0017] The beneficial effects of this invention are as follows: This invention provides a construction waste recycling and recovery device, comprising a cleaning mechanism, an interception and support mechanism, a waterproof transmission mechanism, and a lifting mechanism. Addressing the shortcomings of existing filter cylinders that are prone to clogging and require manual cleaning during shutdown, the cleaning mechanism of this application, through the meshing of a driven gear with a toothed ring on the surface of the filter cylinder, utilizes the rotational power of the filter cylinder itself to drive the rotating shaft and brush to rotate. The brush extends into the screening holes, automatically cleaning the mud, mortar, and stuck small particles in real time. No additional drive components are needed, achieving simultaneous screening and cleaning, completely solving the problem of the filter cylinder becoming increasingly clogged as it rotates, ensuring continuous operation of the equipment, and significantly improving recycling efficiency. Efficiency is improved, and the soft nylon bristles prevent damage to the screening holes. Addressing the shortcomings of traditional belt conveyors, such as easy material scattering and weak support, this application's interception support mechanism features equidistant interception strips on the belt surface. This effectively prevents material from scattering to both sides due to vibration and inertia, eliminating blind spots in magnetic separation and reducing metal leakage. The support frame formed by the front plate, rear plate, and support plate enhances the belt conveyor's load-bearing capacity, preventing belt sagging and collapse under heavy loads. Simultaneously, the scraper removes residual material from the belt surface in real time, further improving magnetic separation accuracy and equipment operational stability. This solves the problems of poor adaptability and low reliability of traditional belt conveyor mechanisms. The original transmission mechanism addresses the shortcomings of traditional transmission mechanisms, such as susceptibility to corrosion from water mist and mud, and gear jamming. It completely encloses the drive pulley, tension pulley, driven pulley, and transmission belt with a protective cover, effectively isolating them from water mist and mud. The tension pulley allows for real-time adjustment of belt tension, preventing slippage, improving power transmission efficiency, and extending the service life of transmission components. This solves the problems of insufficient waterproofing and corrosion protection, and susceptibility to failure in traditional transmission mechanisms. Furthermore, addressing the shortcomings of traditional floating material collection mechanisms, such as jamming, sealing failure, and incomplete collection, the lifting mechanism in this application uses an airbag in conjunction with a lightweight polypropylene collection tank. The airbag can adaptively float with the liquid level, providing... The collection tank provides stable buoyancy support, and the filter holes on the bottom of the collection tank allow for water filtration and material retention. Combined with the guiding action of the slider and slide rail, it prevents tipping and jamming during lifting. A waterproof expansion joint installed at the top inside the separation tank drives the overall structure to lift, accurately collecting lightweight floating matter on the liquid surface. The separation tank's viewing window allows for convenient removal of floating material. This type of construction waste recycling equipment is highly feasible, achieving integrated continuous operation of construction waste screening, unblocking, magnetic separation, floating material collection, and sediment separation. It further improves the efficiency and quality of construction waste recycling, meeting the development needs of environmental protection technology and resource recycling technology promotion services. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only drawings of some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from a low-angle perspective.

[0021] Figure 3 This is a schematic diagram of the overall structure from the rear view perspective of the present invention.

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the outer cover of the present invention.

[0023] Figure 5 This is a rear-view structural schematic diagram of the filter cylinder, the first conveyor, and the second conveyor of the present invention.

[0024] Figure 6 This is a schematic diagram of the overall structure of the filter cartridge and unclogging assembly of the present invention.

[0025] Figure 7 This is a schematic diagram of the overall structure of the first conveyor and the second conveyor of the present invention.

[0026] Figure 8 This is a schematic diagram of the overall structure of the first conveyor of the present invention.

[0027] Figure 9 This is a schematic diagram of the overall structure of the first conveyor of the present invention from a rear view perspective.

[0028] Figure 10 This is a schematic diagram of the overall structure of the first recycling bin, the second recycling bin, and the third recycling bin of the present invention.

[0029] Figure 11 This is a schematic diagram of the overall structure of the separation tank of the present invention.

[0030] Figure 12 This is a schematic diagram of the overall structure of the motor and U-shaped base of the present invention.

[0031] Figure 13 This is a schematic diagram of the overall structure of the driving pulley, tensioning pulley, and driven pulley of the present invention.

[0032] Figure 14 This is a schematic diagram of the internal cross-sectional structure of the separation tank of the present invention.

[0033] Figure 15 This is a schematic diagram of the movable ring and collection tank structure inside the separator of the present invention.

[0034] In the picture:

[0035] 1. Base plate; 2. Outer cover; 3. Feed hopper; 4. Belt conveyor; 5. Filter cylinder; 6. Fixed ring; 7. Gear ring; 8. Drive gear; 9. First discharge hopper; 10. First conveyor; 11. Second conveyor; 12. Permanent magnet; 13. Second discharge hopper; 14. Third discharge hopper; 15. First recycling bin; 16. Second recycling bin; 17. Bearing seat; 18. Rotating shaft; 19. Brush; 20. Driven gear; 21. Drive roller; 22. Driven roller; 23. First belt; 24. 25. Interception bar; 26. Front plate; 27. Rear plate; 28. Support plate; 29. ​​Scraper; 30. Separator; 31. Fixing frame; 32. Motor; 33. U-shaped seat; 34. Drive pulley; 35. Tensioning pulley; 36. Driven pulley; 37. Rotating rod; 38. Guide cylinder; 39. Moving ring; 40. Connecting rod; 41. Airbag; 42. Collection trough; 43. Slider; 44. Slide rail; 45. Waterproof expansion joint; 46. Discharge pipe; 47. Third recovery box; 48. Water pump; 49. Pipeline. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] like Figures 1 to 15 As shown in the figure, the construction waste recycling equipment provided in this embodiment of the invention includes a base plate 1, an outer cover 2, a blockage clearing mechanism, an interception support mechanism, a waterproof transmission mechanism, and a lifting mechanism. The base plate 1 and the outer cover 2 constitute the overall load-bearing and external protection structure of the equipment, providing a stable installation foundation and a closed working environment for the internal functional mechanisms. The blockage clearing mechanism is used to automatically clean the screening holes of the filter cylinder 5 in real time, preventing mud, sand, particles, and flexible debris from clogging the screening holes and ensuring continuous screening effect. The interception support mechanism is used to limit and reinforce the belt conveyor, preventing material spillage and belt sagging and collapse, improving magnetic separation accuracy and equipment operation stability. The waterproof transmission mechanism is used to isolate the drive components from sewage and water mist, preventing the pulleys from rusting and jamming, and improving transmission reliability. The lifting mechanism, in conjunction with the airbag and lightweight collection tank, realizes adaptive lifting and collection of floating impurities, solving the problems of easy jamming, sealing failure, and incomplete collection in traditional floating material mechanisms. The various mechanisms cooperate and act in concert to achieve continuous, efficient, and environmentally friendly recycling of construction waste.

[0040] In one embodiment, casters are provided at the four corners of the bottom side of the base plate 1. The base plate 1 serves as the load-bearing foundation of the entire equipment, providing a stable installation platform for each mechanism. The casters at the four corners of the bottom side allow the equipment to move flexibly, facilitating transfer between different construction sites. An outer cover 2 is provided on the top side of the base plate 1. The outer cover 2 provides protection for the internal filter cylinder, conveyor and other components, while preventing dust and debris from escaping during the screening process, thus improving the working environment. A handrail is provided at the upper right side of the outer cover 2, facilitating pushing and pulling operations when the equipment is transferred or its position is adjusted. A belt conveyor 4 is provided at the left end of the outer cover 2 and the base plate 1. A feed hopper 3 is provided at the left end of the belt conveyor 4. The feed hopper 3 is flared, wider at the top and narrower at the bottom, facilitating the centralized disposal of construction waste. The belt conveyor 4 continuously and evenly feeds the material in the feed hopper 3 into the filter cylinder 5 inside the outer cover 2, avoiding material accumulation and jamming.

[0041] Before operation, the equipment is moved to the construction waste dumping area using casters; the construction waste to be processed is put into the feed hopper 3, the belt conveyor 4 is started, and the material enters the filter cylinder 5 inside the outer cover 2 along the conveying direction of the belt conveyor 4 to achieve continuous feeding.

[0042] In one embodiment, a filter cylinder 5 is rotatably mounted inside the left end of the outer casing 2 via two fixing rings 6. The fixing rings 6 provide stable rotational support for the filter cylinder 5, ensuring the coaxiality of the filter cylinder 5 during rotation and preventing shaking. Several screening holes are equidistantly arranged around the surface of the filter cylinder 5. The filter cylinder 5 is a horizontal cylindrical structure. The screening holes on the surface are used to separate small-diameter impurities such as fine sand and mud from large-diameter materials in construction waste, achieving primary screening. A toothed ring 7 is fixedly mounted in the middle of the surface of the filter cylinder 5. A drive gear 8 is rotatably mounted inside the upper left end of the outer casing 2. The drive gear 8 is driven by a motor embedded in the outer casing 2. The drive gear 8 meshes with the toothed ring 7, transmitting the power of the motor to the filter cylinder 5, driving the filter cylinder 5 to rotate. This, in conjunction with the internal spiral conveyor plate (not shown in the figure), realizes the conveying and screening of materials.

[0043] When in use, start the motor embedded in the outer cover 2 to drive the drive gear 8 to rotate. The drive gear 8 drives the filter cylinder 5 to rotate around its own axis through meshing with the gear ring 7. After the material enters the filter cylinder 5, it tumbles with the rotation of the filter cylinder 5. Small-diameter impurities such as fine sand and mud fall through the screening holes, while large-diameter materials move to the right end of the filter cylinder 5 under the push of the spiral conveyor plate, thus completing the primary screening.

[0044] In one embodiment, a first discharge hopper 9 is provided below the filter cylinder 5 on the outer cover 2. The first discharge hopper 9 has a funnel-shaped structure and is used to collect small-diameter impurities such as fine sand and mud falling from the screening holes of the filter cylinder 5 and guide them into the first recycling box 15. The first recycling box 15 is provided at the top left end of the bottom plate 1, and the outlet end of the first discharge hopper 9 is located above the first recycling box 15. The first recycling box 15 is used to centrally store small-diameter impurities after primary screening, which is convenient for subsequent unified recycling and avoids material scattering.

[0045] During the rotary screening process of the filter cylinder 5, small-diameter impurities fall into the first discharge hopper 9 through the screening holes and slide into the first recovery box 15 along the inclined surface of the discharge hopper. After the operation is completed, the screened fine sand and mud can be directly taken out from the first recovery box 15 for subsequent processing.

[0046] In one embodiment, a first conveyor 10 and a second conveyor 11 are sequentially arranged inside the right end of the outer casing 2. The first conveyor 10 receives large-particle material discharged from the filter cylinder 5 and transports it to the magnetic separation area. The permanent magnet 12 inside the second conveyor 11 generates a magnetic field to attract metals (such as steel bars, iron sheets, etc.) in the material, thereby achieving the separation of metals and non-metals. The second conveyor 11 is located to the upper right of the first conveyor 10, and the first conveyor 10 is located below the outlet end of the filter cylinder 5. The permanent magnet 12 is arranged inside the second conveyor 11, and a second discharge point is arranged at the lower right end of the outer casing 2. The second discharge hopper 13 is used to collect the metal material that falls off after being attracted by the permanent magnet 12 and guide it into the second recycling bin 16. The bottom right end of the second conveyor 11 is located above the second discharge hopper 13. The left side of the second discharge hopper 13 is provided with a third discharge hopper 14, which is used to collect the non-metallic material that has not been attracted and guide it into the subsequent separation tank 29. The bottom right end of the first conveyor 10 is located above the third discharge hopper 14. The top right end of the bottom plate 1 is provided with the second recycling bin 16. The outlet end of the second discharge hopper 13 is located above the second recycling bin 16.

[0047] Large-diameter materials after primary screening are discharged from the right end of the filter cylinder 5 and fall onto the first belt 23 of the first conveyor 10. The first conveyor 10 transports the material to the area below the second conveyor 11, where the metal in the material is attracted to the surface of the belt of the second conveyor 11 by the permanent magnet 12. The belt of the second conveyor 11 moves the metal material to the area above the second discharge hopper 13, where it falls into the second discharge hopper 13 after being removed from the magnetic field, and finally enters the second recovery box 16. The non-metallic material that is not attracted falls from the end of the first conveyor 10 and enters the separation tank 29 through the third discharge hopper 14.

[0048] In one embodiment, a cleaning mechanism is provided at the top of the filter cylinder 5. The cleaning mechanism includes a bearing seat 17, a rotating shaft 18, a brush 19, and a driven gear 20. The cleaning mechanism uses the rotational power of the filter cylinder 5 itself to drive the rotating shaft 18 to rotate through the meshing of the driven gear 20 and the gear ring 7, thereby driving the brush 19 to rotate. The tops of the two left and right fixed rings 6 are fixedly provided with bearing seats 17, which provide stable rotational support for the rotating shaft 18 and ensure the smoothness of the cleaning process. A rotating shaft 18 is rotatably mounted between the two fixed rings 6 on the left and right. Several brushes 19 are equidistantly arranged around the surface of the rotating shaft 18. The brushes 19 are made of nylon filaments and their length is greater than the wall thickness of the filter cylinder 5 and extends into the screening hole. The nylon filaments of the brushes 19 extend into the screening hole and brush out the mud, slurry and stuck small particles in the hole, so as to achieve automatic clearing and avoid clogging of the screening hole. A driven gear 20 is fixedly mounted in the middle of the rotating shaft 18 and meshes with the gear ring 7.

[0049] When the filter cylinder 5 rotates, the gear ring 7 rotates synchronously, driving the driven gear 20 and the rotating shaft 18 to rotate in the opposite direction; the brush 19 on the rotating shaft 18 rotates with it, continuously brushing the screening holes of the filter cylinder 5, brushing out the blockage material in the holes; the brushed blockage material falls into the first discharge hopper 9 with the rotation of the filter cylinder 5, and is collected together with small-diameter impurities, without the need to stop the machine for manual cleaning.

[0050] In one embodiment, both the first conveyor 10 and the second conveyor 11 include: a drive roller 21, a driven roller 22 and a first belt 23. The drive roller 21 is located inside the right end of the outer cover 2 and is driven by a motor embedded in the outer cover 2. The driven roller 22 is located to the left of the drive roller 21 and the first belt 23 is provided between the drive roller 21 and the driven roller 22.

[0051] In one embodiment, both the first conveyor 10 and the second conveyor 11 are provided with an interception support mechanism. The interception support mechanism includes: interception bars 24, a front plate 25, a rear plate 26, and a support plate 27. A plurality of interception bars 24 are fixedly and evenly distributed on the surface of the first belt 23. The interception bars 24 are raised strip-shaped structures and are evenly distributed on the surface of the first belt 23. They can prevent materials from falling to both sides due to vibration and inertia, thus avoiding the formation of magnetic separation blind zones. A front plate 25 is provided between the front ends of the drive roller 21 and the driven roller 22, and a rear plate 26 is provided between the rear ends of the drive roller 21 and the driven roller 22. A support plate 27 is fixedly provided between the side walls of the front plate 25 and the rear plate 26. The front plate 25, the rear plate 26, and the support plate 27 together constitute the support frame of the belt, enhancing the load-bearing capacity of the belt and preventing the belt from sagging and collapsing under heavy load. The support plate 27 of the second conveyor 11 is provided with a permanent magnet 12.

[0052] In one embodiment, a scraper 28 is provided between the front plate 25 and the middle of the bottom side of the rear end of the first conveyor 10 to scrape off the material remaining on the surface of the first belt 23 of the first conveyor 10. The scraper 28 is attached to the surface of the first belt 23 to scrape off the mud, slurry and fine materials remaining on the belt surface, so as to avoid the material sticking together and affecting the magnetic separation effect.

[0053] After the material falls onto the first belt 23, the intercepting bar 24 restricts the material to the central area of ​​the belt and conveys it forward with the belt; the support plate 27 provides support for the belt to prevent the belt from sagging under heavy load and ensure stable material conveying; during the operation of the belt, the scraper 28 scrapes off the material remaining on the surface in real time, and the scraped material falls into the third discharge hopper 14 and enters the separation tank 29 with the non-metallic material.

[0054] In one embodiment, a separation tank 29 is provided at the middle of the top side of the base plate 1, and a waterproof transmission mechanism is provided above the separation tank 29. The waterproof transmission mechanism includes: a fixing frame 30, a drive motor 31, a U-shaped seat 32, and a protective cover. The fixing frame 30 is provided at the middle of the bottom side of the outer cover 2. The drive motor 31 is provided at the front end inside the fixing frame 30, and the U-shaped seat 32 is provided at the middle of the inside of the fixing frame 30. The fixing frame 30 and the U-shaped seat 32 provide a stable mounting platform for the drive motor 31 and the transmission components, ensuring the smoothness of the transmission process. The top of the U-shaped seat 32 is provided with a protective cover, which completely encloses the driving pulley 33, the tensioning pulley 34, the driven pulley 35, and the second belt to prevent water mist and mud from splashing onto the transmission components and to prevent the pulleys and belts from rusting or jamming.

[0055] In one embodiment, a drive pulley 33, a tension pulley 34, a driven pulley 35, and a second belt are sequentially arranged inside the protective cover. The drive pulley 33 is driven by a drive motor 31. The tension pulley 34 is located at the front end of the U-shaped seat 32 and can adjust the tension of the second belt to prevent belt slippage and ensure power transmission efficiency. The driven pulley 35 is located at the rear end of the U-shaped seat 32. The second belt is sequentially arranged between the drive pulley 33, the tension pulley 34, and the driven pulley 35.

[0056] The drive motor 31 is started, which drives the active pulley 33 to rotate and transmits power to the driven pulley 35 through the second belt; the tension wheel 34 adjusts the belt tension in real time to ensure the friction between the belt and the pulley and avoid power transmission failure; the protective cover blocks water mist and mud in the separation tank 29, protects the transmission components from corrosion and extends their service life.

[0057] In one embodiment, a rotating rod 36 is provided at the lower end of the driven pulley 35, and the output end of the third discharge hopper 14 is located inside the separation tank 29. A guide cylinder 37 is provided in the center of the separation tank 29. The end of the rotating rod 36 extends into the guide cylinder 37 and is provided with spiral blades. When the spiral blades at the end of the rotating rod 36 rotate, they transport the sediment (such as stones, concrete blocks, etc.) at the bottom of the separation tank 29 upward into the guide cylinder 37. The bottom end of the guide cylinder 37 is open and there is a gap between it and the bottom side of the separation tank 29. The gap between the bottom end of the guide cylinder 37 and the bottom side of the separation tank 29 ensures that the sediment at the bottom can enter the guide cylinder 37 smoothly and avoid accumulation. A downwardly inclined discharge pipe 45 is provided through the upper right end of the guide cylinder 37. The guide cylinder 37 guides the sediment to move upward and discharge it through the discharge pipe 45, realizing continuous collection of sediment.

[0058] When the driven pulley 35 rotates, it drives the rotating rod 36 and the spiral blade to rotate synchronously; the sediment at the bottom of the separator 29 moves upward with the rotation of the spiral blade and enters the guide cylinder 37; the sediment rises along the guide cylinder 37 to the discharge pipe 45, slides out along the inclined discharge pipe 45, and enters the third recovery box 46.

[0059] In one embodiment, a lifting mechanism is provided between the feed cylinder 37 and the interior of the separation tank 29. The lifting mechanism includes: a movable ring 38, connecting rods 39, an air bladder 40, a collection tank 41, a slider 42, a slide rail 43, and a waterproof expansion joint 44. The movable ring 38 is slidably arranged on the outer wall of the feed cylinder 37. Six connecting rods 39 are equidistantly arranged around the outer wall of the movable ring 38. The air bladder 40 is provided on the movable ring 38 through the connecting rods 39. The air bladder 40 is a lightweight and flexible structure that can adaptively float with the liquid level and provide buoyancy support for the collection tank 41. The collection tank 41 is provided between the left rear side of the inner wall of the air bladder 40 and the left rear side of the outer wall of the movable ring 38. The collection tank 41 is made of polypropylene and has a filter hole on the bottom side. The collection tank 41 is made of polypropylene, which is lightweight and corrosion-resistant. The filter hole on the bottom side can filter out water during the ascent, retaining only lightweight floating objects (such as foam, plastic, etc.). The height of the collection tank 41 is... The thickness of the separator is greater than that of the airbag 40. Slider 42 is provided on both the left and right sides of the airbag 40. Slide rails 43 are provided on both the left and right inner walls of the separator 29. The slider 42 is slidably mounted on the slide rails 43. The slider 42 and the slide rails 43 cooperate to guide the lifting and lowering of the airbag 40 and the collection tank 41, preventing tipping and jamming. A waterproof expansion joint 44 is provided at the top of the slide rail 43 on the left side. The telescopic end of the waterproof expansion joint 44 is connected to the top side of the slider 42 on the left side. The waterproof expansion joint 44 drives the slider 42 to move up and down, causing the airbag 40 and the collection tank 41 to float up and collect the light floating objects above the separator 29. A viewing window (not shown in the figure) for taking out the collection tank 41 is provided on the left rear outer wall of the separator 29 through a hinge. The height of the viewing window is higher than the highest position of the collection tank 41. The viewing window makes it easy to observe the material in the collection tank 41. After the operation, the viewing window can be opened to take out the collected light floating objects.

[0060] After non-metallic materials enter the separator 29, light floating matter floats on the liquid surface, while sediment sinks to the bottom. The waterproof expansion joint 44 is activated, driving the slider 42 to move upward along the slide rail 43, which in turn causes the airbag 40 and the collection tank 41 to float upward. During the ascent, the collection tank 41 collects the light floating matter on the liquid surface into the tank, and the water is filtered out by the filter holes on the bottom side. When the collection tank 41 rises to the height of the viewing window, the waterproof expansion joint 44 is stopped, the viewing window is opened, and the collected light floating matter is taken out. After the operation is completed, the waterproof expansion joint 44 drives the airbag 40 and the collection tank 41 to fall back below the liquid surface, waiting for the next collection.

[0061] In one embodiment, a third recycling box 46 is provided at the right end of the bottom side of the base plate 1. The third recycling box 46 is used to centrally store the sediment discharged from the discharge pipe 45 for subsequent recycling. The output end of the discharge pipe 45 is located above the third recycling box 46. A water pump 47 is embedded in the rear end of the base plate 1. The water pump 47 is connected to the bottom of the separation tank 29 through the pipe 48 to realize the circulation of liquid in the separation tank 29. It can discharge wastewater containing slag, replenish clean water, maintain the cleanliness of the sorted liquid, and avoid water pollution affecting the sorting effect.

[0062] After the sediment is discharged from the discharge pipe 45, it falls into the third recovery box 46 for unified storage. When the liquid in the separation tank 29 has too much residue, the water pump 47 is started to discharge the wastewater containing residue through the pipeline 48, while replenishing clean water to maintain the cleanliness of the separated liquid. After the operation is completed, the liquid in the separation tank 29 can be completely discharged through the water pump 47 for easy cleaning and storage of the equipment.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction waste recycling and recovery device, comprising: The bottom plate (1) and the outer cover (2) are provided on the top side of the bottom plate (1). The outer cover (2) is characterized in that: a filter cylinder (5) is rotatably provided on the left end of the inner side of the outer cover (2) through two fixing rings (6), and a toothed ring (7) is fixedly provided on the middle end of the surface of the filter cylinder (5). The top of the filter cylinder (5) is provided with a cleaning mechanism, which includes: a bearing seat (17), a rotating shaft (18), a brush (19) and a driven gear (20). The top of the left and right fixed rings (6) is fixedly provided with a bearing seat (17), and a rotating shaft (18) is rotatably provided between the left and right fixed rings (6). Several brushes (19) are equidistantly arranged around the surface of the rotating shaft (18). A driven gear (20) is fixedly provided in the middle of the rotating shaft (18). The driven gear (20) meshes with the gear ring (7). The outer cover (2) is provided with a first conveyor (10) and a second conveyor (11) in sequence on the right side. Both the first conveyor (10) and the second conveyor (11) are provided with an interception support mechanism. The interception support mechanism includes: interception strips (24), a front plate (25), a rear plate (26) and a support plate (27). Several interception strips (24) are fixedly arranged at equal intervals on the surface of the first belt (23). A front plate (25) is provided between the front ends of the active roller (21) and the driven roller (22). A rear plate (26) is provided between the rear ends of the active roller (21) and the driven roller (22). A support plate (27) is fixedly provided between the side walls of the front plate (25) and the rear plate (26). A separation tank (29) is provided at the middle of the top side of the bottom plate (1). A waterproof transmission mechanism is provided above the separation tank (29). The waterproof transmission mechanism includes: a fixed frame (30), a drive motor (31), a U-shaped seat (32) and a protective cover. A fixed frame (30) is provided at the middle of the bottom side of the outer cover (2). A drive motor (31) is provided at the front end of the inside of the fixed frame (30). A U-shaped seat (32) is provided at the middle of the inside of the fixed frame (30). A protective cover is provided at the top of the U-shaped seat (32). The separation tank (29) is provided with a guide cylinder (37) in the center. A lifting mechanism is provided between the guide cylinder (37) and the interior of the separation tank (29). The lifting mechanism includes: a movable ring (38), an air bladder (40), a collection trough (41), a slider (42), a slide rail (43), and a waterproof expansion joint (44). The outer wall of the guide cylinder (37) is slidably provided with a movable ring (38). The movable ring (38) is provided with an air bladder (40) through a connecting rod (39). A collection trough (41) is provided between the left rear side of the inner wall of the air bladder (40) and the left rear side of the outer wall of the movable ring (38). Slider blocks (42) are provided on both the left and right sides of the air bladder (40). Slide rails (43) are provided on both the left and right inner walls of the separation tank (29). A waterproof expansion joint (44) is provided at the top of the slide rail (43) on the left side.

2. The construction waste recycling equipment according to claim 1, characterized in that: The filter cylinder (5) has several screening holes equidistantly arranged around its surface. The brush (19) is made of nylon filament and its length is greater than the wall thickness of the filter cylinder (5) and extends into the screening holes.

3. The construction waste recycling equipment according to claim 1, characterized in that: The second conveyor (11) is equipped with a permanent magnet (12). The first conveyor (10) and the second conveyor (11) both include: a drive roller (21), a driven roller (22) and a first belt (23). The drive roller (21) is located at the right end inside the outer cover (2). The drive roller (21) is driven by a motor embedded in the outer cover (2). The driven roller (22) is located to the left of the drive roller (21). The first belt (23) is provided between the drive roller (21) and the driven roller (22). The support plate (27) of the second conveyor (11) is equipped with a permanent magnet (12).

4. The construction waste recycling equipment according to claim 1, characterized in that: The protective cover is provided with a drive pulley (33), a tension pulley (34), a driven pulley (35), and a second belt in sequence. The drive pulley (33) is driven by a drive motor (31). The tension pulley (34) is located at the front end of the U-shaped seat (32). The driven pulley (35) is located at the rear end of the U-shaped seat (32). The drive pulley (33), the tension pulley (34), and the driven pulley (35) are connected by a second belt in sequence.

5. The construction waste recycling equipment according to claim 4, characterized in that: The driven pulley (35) is provided with a rotating rod (36) at its lower end. The output end of the third discharge hopper (14) is located inside the separator (29). The end of the rotating rod (36) extends into the guide cylinder (37) and is provided with spiral blades. The bottom end of the guide cylinder (37) is open and there is a gap between it and the bottom side of the separator (29). The upper right side of the guide cylinder (37) is provided with a downwardly inclined discharge pipe (45).

6. The construction waste recycling equipment according to claim 1, characterized in that: The lifting mechanism also includes connecting rods (39), and six connecting rods (39) are equidistantly arranged around the outer wall of the movable ring (38), and the slider (42) is slidably arranged on the slide rail (43).

7. The construction waste recycling equipment according to claim 1, characterized in that: The collection tank (41) is made of polypropylene. A filter hole is provided on the bottom side of the collection tank (41). The height of the collection tank (41) is higher than the thickness of the airbag (40). The telescopic end of the waterproof expansion joint (44) is connected to the top side of the slider (42) located on the left. The outer wall of the left rear side of the separation tank (29) is provided with a viewing window for taking out the collection tank (41) through a hinge. The height of the viewing window is higher than the highest position of the collection tank (41) during movement.

8. The construction waste recycling equipment according to claim 1, characterized in that: The bottom plate (1) has a third recycling box (46) on the right side of the bottom side. The output end of the discharge pipe (45) is located above the third recycling box (46). The bottom plate (1) has a water pump (47) embedded in the rear end. The water pump (47) is connected to the bottom of the separation tank (29) through the pipeline (48).

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