Construction waste processing and recycling equipment

Abstract

The application belongs to the technical field of building waste treatment, and particularly relates to a waste treatment and recovery equipment for building construction, which comprises a supporting frame, a first end cover, a second end cover, an outer cylinder, a middle cylinder, an inner cylinder, a feeding pipe, a first discharging pipe, a second discharging pipe, a first driving motor, a transmission gear ring and a gear, a crushing mechanism and a spiral plate. The outer cylinder, the middle cylinder and the inner cylinder are coaxially nested into a conical cylinder body. The inner cylinder is provided with crushing knives. The inner cylinder and the middle cylinder are provided with screen holes with different diameters. The first driving motor drives the three-layer cylinder body to rotate in the same direction through the gear ring and the gear. The inner wall of the cylinder is provided with the spiral plate to push the material to move axially. The material is crushed when entering the inner cylinder. The qualified particles enter the middle cylinder for further fine crushing and screening. The fine particles enter the outer cylinder for collection. The medium aggregate is discharged from the first discharging pipe, and the fine aggregate is discharged from the second discharging pipe. The application integrates the crushing and multi-stage screening functions, has a compact structure and small floor area, can complete the classified discharging in a single equipment, and is suitable for narrow site operation.

Description

Technical Field

[0001] This invention belongs to the field of construction waste treatment technology, and in particular relates to a waste treatment and recycling device for construction. Background Technology

[0002] Construction processes generate a large amount of waste concrete, bricks, and other materials. Crushing, screening, and processing these wastes into recycled aggregates is an important way to achieve the recycling of construction resources. Currently, most waste processing equipment in the industry consists of independently set up units such as crushers, screening machines, and conveyors, connected in series by belt conveyors to form a linear production line. This traditional layout results in a large overall length and loose structure of the equipment, requiring significant space on the construction site. It is difficult to arrange flexibly in confined construction areas and also increases the difficulty of transporting and moving the equipment within the site.

[0003] Existing equipment for screening construction waste mostly adopts a single-stage screening structure, capable of completing only one particle size screening, and cannot perform multi-stage continuous grading operations within the same machine. Materials require multiple transfers and screenings during the screening process, resulting in a cumbersome process, low processing efficiency, and a relatively uniform particle size distribution after screening, making it difficult to meet the needs of construction sites for recycled aggregates of different particle sizes. Furthermore, in traditional equipment, the crushing and screening stages are separated; materials need to be transported to the screening unit after crushing, resulting in multiple intermediate steps that can easily lead to material accumulation and poor transport, affecting the overall processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a waste treatment and recycling device for construction projects to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following solution: A construction waste treatment and recycling device includes: a fixedly installed first end cover and a second end cover; an outer cylinder, a middle cylinder, and an inner cylinder are rotatably connected between the first end cover and the second end cover; the outer cylinder, the middle cylinder, and the inner cylinder are coaxially sleeved from the outside to the inside; the outer cylinder, the middle cylinder, and the inner cylinder are connected by transmission; the outer cylinder, the middle cylinder, and the inner cylinder are all configured as conical cylinders; the small end of the inner cylinder is connected to the feed inlet; and the large ends of the middle cylinder and the outer cylinder are respectively connected to the first discharge outlet and the second discharge outlet. The inner cylinder is equipped with a crushing mechanism for crushing materials; The inner cylinder has multiple first sieve holes, and the middle cylinder has multiple second sieve holes. The diameter of the first sieve holes is larger than the diameter of the second sieve holes.

[0006] Preferably, spiral plates are circumferentially arranged on the inner sidewalls of the outer cylinder, the middle cylinder, and the inner cylinder. The spiral plates are arranged along the length direction of the outer cylinder and are used to transport materials from the small end of the cone shape to the large end.

[0007] Preferably, a first gear ring is coaxially fixed to the outer wall of the inner cylinder, the first gear ring is located at one end of the inner cylinder, and a plurality of first gears are meshed on the outer edge of the first gear ring. The plurality of first gears are circumferentially spaced and rotatably connected to the first end cover. The plurality of first gears mesh with the inner edge of a second gear ring, the second gear ring is coaxially fixed to the inner side of the middle cylinder, and a third gear ring is coaxially fixed to the outer side of the middle cylinder. A plurality of second gears are meshed on the outer edge of the third gear ring. The plurality of second gears are circumferentially spaced and rotatably connected to the first end cover, the plurality of second gears mesh with the inner edge of a fourth gear ring, the fourth gear ring is coaxially fixed to the inner wall of the outer cylinder.

[0008] Preferably, the small end of the inner cylinder extends out of the first end cover and is coaxially fixed to a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley via a synchronous belt drive. The second synchronous pulley is coaxially fixed to the output shaft of the first drive motor, and the first drive motor is fixedly installed.

[0009] Preferably, the crushing mechanism includes a rotating shaft coaxially disposed inside the inner cylinder, a plurality of crushing blade groups fixedly connected to the rotating shaft, the crushing blade group including two crushing blades, the rotating shaft being rotatably connected to the second end cover, one end of the rotating shaft passing through the second end cover and coaxially fixedly connected to the output shaft of the second drive motor, the second drive motor being fixedly connected to the second end cover.

[0010] Preferably, the cutting edges of the two crushing blades in the same crushing blade group are arranged opposite to each other.

[0011] Preferably, the crusher includes a mounting base, which is coaxially fixed to the rotating shaft. Two connecting plates are fixed to the outer side of the mounting base. One end of an arc-shaped crushing part is fixed to the connecting plates. A vertical crushing part is fixed to the other end of the arc-shaped crushing part. A horizontal crushing part is fixed between the other end of the arc-shaped crushing part and the mounting base. Both connecting plates and both arc-shaped breaking sections are symmetrically arranged along the axis of the rotating shaft.

[0012] Preferably, both the first sieve hole and the second sieve hole are configured as oblong or hexagonal, and the long side of the oblong hole is parallel to the axial direction of the inner cylinder.

[0013] Preferably, the distribution trend of the first sieve holes is that the density gradually increases from the small end to the large end of the inner cylinder, and the distribution trend of the second sieve holes is the same as that of the first sieve holes.

[0014] Preferably, the first end cap, the second end cap, and the first drive motor are all fixedly connected to the support frame.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects: This invention integrates crushing, coarse screening, fine screening, and graded discharge functions into a three-layered coaxial cylindrical structure. This eliminates the need for conveyor belts between units in traditional equipment, simplifying the overall structure, reducing the equipment's footprint, and adapting to the needs of confined construction sites while reducing the difficulty of relocation and movement. By setting screens with different aperture sizes in the inner and middle cylinders, combined with centrifugal force and a spiral feeding structure, multi-stage screening of materials is completed within a single unit, achieving graded discharge of medium and fine aggregates. This improves the targeting of waste treatment and aggregate recycling, and reduces material transfer links. A single-drive transmission structure drives the three cylinders to rotate synchronously, ensuring stable power transmission and reasonable energy distribution. The crushing blades feature multiple cutting edges and a full-coverage arrangement, eliminating dead angles in the crushing process, improving crushing effect and processing efficiency. The overall equipment structure is compact, and the operation process is continuous, enabling stable resource recycling of construction waste. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort: Figure 1 This is a first-view perspective view of the present invention; Figure 2 This is a second perspective view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the transmission of the outer cylinder, inner cylinder, and outer tube in this invention; Figure 5 This is a schematic diagram of the structure of the crushing blade in this invention; Figure 6 This is a front view of the crushing blade in this invention; The components are as follows: 1. Support frame; 2. First end cover; 3. Second end cover; 4. Outer cylinder; 5. Middle cylinder; 6. Inner cylinder; 7. Feed pipe; 8. First discharge pipe; 9. Second discharge pipe; 10. First drive motor; 11. First gear ring; 12. First gear; 13. Second gear ring; 14. Third gear ring; 15. Second gear; 16. Fourth gear ring; 17. Second drive motor; 18. Rotating shaft; 19. Crushing blade; 20. Spiral plate; 1901. Mounting base; 1902. Connecting plate; 1903. Arc-shaped crushing section; 1904. Vertical crushing section; 1905. Horizontal crushing section. Detailed Implementation

[0017] 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.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Reference Figures 1 to 6 This invention discloses a waste treatment and recycling device for construction, comprising: a first end cover 2 and a second end cover 3 fixedly disposed therebetween; an outer cylinder 4, a middle cylinder 5 and an inner cylinder 6 are rotatably connected between the first end cover 2 and the second end cover 3; the outer cylinder 4, the middle cylinder 5 and the inner cylinder 6 are coaxially sleeved from the outside to the inside; the outer cylinder 4, the middle cylinder 5 and the inner cylinder 6 are connected by transmission; the outer cylinder 4, the middle cylinder 5 and the inner cylinder 6 are all configured as conical cylinders; the small end of the inner cylinder 6 is connected to the feed inlet; and the large ends of the middle cylinder 5 and the outer cylinder 4 are respectively connected to the first discharge outlet and the second discharge outlet. The inner cylinder 6 is equipped with a crushing mechanism for crushing materials; The inner cylinder 6 has multiple first sieve holes, and the middle cylinder 5 has multiple second sieve holes. The diameter of the first sieve holes is larger than that of the second sieve holes.

[0020] To further optimize the design, spiral plates 20 are circumferentially arranged on the inner sidewalls of the outer cylinder 4, the middle cylinder 5, and the inner cylinder 6. The spiral plates 20 are arranged along the length of the outer cylinder 4 and are used to transport materials from the small end of the cone shape to the large end.

[0021] In a further optimized design, a first gear ring 11 is coaxially fixed to the outer wall of the inner cylinder 6. The first gear ring 11 is located at one end of the inner cylinder 6. Multiple first gears 12 are meshed on the outer edge of the first gear ring 11. The multiple first gears 12 are circumferentially spaced and rotatably connected to the first end cover 2. The multiple first gears 12 are all meshed with the inner edge of the second gear ring 13. The second gear ring 13 is coaxially fixed to the inner side of the middle cylinder 5. A third gear ring 14 is coaxially fixed to the outer side of the middle cylinder 5. Multiple second gears 15 are meshed on the outer edge of the third gear ring 14. The multiple second gears 15 are circumferentially spaced and rotatably connected to the first end cover 2. The multiple second gears 15 are all meshed with the inner edge of the fourth gear ring 16. The fourth gear ring 16 is coaxially fixed to the inner wall of the outer cylinder 4.

[0022] In a further optimized design, the small end of the inner cylinder 6 extends out of the first end cover 2 and is coaxially fixed to a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley via a synchronous belt drive. The second synchronous pulley is coaxially fixed to the output shaft of the first drive motor 10, and the first drive motor 10 is fixedly installed.

[0023] The further optimized scheme includes a crushing mechanism comprising a rotating shaft 18 coaxially disposed within the inner cylinder 6, with multiple crushing blade sets fixedly connected to the rotating shaft 18, each crushing blade set comprising two crushing blades 19, the rotating shaft 18 being rotatably connected to the second end cover 3, one end of the rotating shaft 18 extending out of the second end cover 3 and being coaxially fixedly connected to the output shaft of the second drive motor 17, the second drive motor 17 being fixedly connected to the second end cover 3.

[0024] The design was further optimized so that the cutting edges of the two crushers 19 in the same crusher group are set to face away from each other.

[0025] The further optimized design includes a mounting base 1901, which is coaxially fixed to the rotating shaft 18. Two connecting plates 1902 are fixed to the outer side of the mounting base 1901. One end of an arc-shaped crushing section 1903 is fixed to the connecting plate 1902. A vertical crushing section 1904 is fixed to the other end of the arc-shaped crushing section 1903. A transverse crushing section 1905 is fixed between the other end of the arc-shaped crushing section 1903 and the mounting base 1901. The two connecting plates 1902 and the two arc-shaped crushing parts 1903 are symmetrically arranged along the axis of the rotating shaft 18.

[0026] The scheme was further optimized by setting both the first and second sieve holes as oblong or hexagonal, with the long side of the oblong hole parallel to the axis of the inner cylinder 6.

[0027] Further optimization of the scheme: the distribution trend of the first sieve hole is that the density gradually increases from the small end to the large end of the inner cylinder 6, and the distribution trend of the second sieve hole is the same as that of the first sieve hole.

[0028] The design is further optimized so that the first end cover 2, the second end cover 3, and the first drive motor 10 are all fixedly connected to the support frame 1.

[0029] A construction waste treatment and recycling device includes a support frame 1. A first end cap 2 and a second end cap 3 are fixedly connected to the front and rear sides of the support frame 1, respectively. An outer cylinder 4 is rotatably mounted between the first end cap 2 and the second end cap 3 via bearings. A middle cylinder 5 and an inner cylinder 6 are arranged inside the outer cylinder 4, coaxially stacked. The two ends of the middle cylinder 5 and the inner cylinder 6 are also rotatably connected to the first end cap 2 and the second end cap 3 via bearings. The outer cylinder 4, middle cylinder 5, and inner cylinder 6 are all conical cylinders, with the smaller end being the inlet and the larger end being the outlet. The first end cap 2 is located on the side of the smaller end of the conical cylinder, and the second end cap 3 is located on the side of the larger end. A feed pipe 7 is fixedly connected to the center of the first end cap 2, communicating with the smaller end of the inner cylinder 6. A first outlet pipe 8 and a second outlet pipe 9 are connected to the second end cap 3 at positions corresponding to the middle cylinder 5 and the outer cylinder 4, respectively. A first drive motor 10 is installed at the lower part of the support frame 1. A first synchronous pulley is installed on the output shaft of the first drive motor 10. A second synchronous pulley is installed at the front end of the inner cylinder 6. The first and second synchronous pulleys are connected by a synchronous belt drive. The operation of the first drive motor 10 can drive the inner cylinder 6 to rotate. A first gear ring 11 is installed on the outer wall of the inner cylinder 6. A second gear ring 13 and a third gear ring 14 are installed on the inner and outer walls of the middle cylinder 5, respectively. A fourth gear ring 16 is installed on the inner wall of the outer cylinder 4. Three first gears 12 and three second gears 15 are installed on the first end cover 2. The first gears 12 mesh with the first gear rings 11 and 13 simultaneously, and the second gears 15 mesh with the third gear rings 14 and 16 simultaneously. When the first drive motor 10 is running, the synchronous pulley and synchronous belt work together to drive the inner cylinder 6 to rotate. The inner cylinder 6 drives the first gear ring 11 to rotate, the first gear ring 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear ring 13 to rotate, which in turn drives the middle cylinder 5 to rotate. The middle cylinder 5 drives the third gear ring 14 to rotate, the third gear ring 14 drives the second gear 15 to rotate, the second gear 15 drives the fourth gear ring 16 to rotate, and finally drives the outer cylinder 4 to rotate, so that the three cylinders are driven by the same power source to rotate in the same direction. The inner walls of the outer cylinder 4, the middle cylinder 5, and the inner cylinder 6 are all connected to spiral plates 20. During the rotation of the cylinders, the spiral plates 20 can push the material to move axially from the feed end to the discharge end. The spiral direction of the spiral plates 20 on the inner walls of the inner cylinder 6, the middle cylinder 5, and the outer cylinder 4 is adapted to the rotation direction of their respective cylinders. Observed from the feed end, if the cylinder rotates clockwise, the spiral plates rotate to the left, and if it rotates counterclockwise, the spiral plates rotate to the right, ensuring that the material moves stably towards the discharge end.The inner cylinder 5 and the inner cylinder 6 are respectively provided with a first screen hole and a second screen hole. The diameter of the second screen hole is smaller than that of the first screen hole, which can realize the material from coarse to fine step-by-step screening. The screen holes of the inner cylinder 6 and the inner cylinder 5 are oblong or hexagonal, with the long side parallel to the cylinder axis. The screen holes have a gradually changing density distribution along the cylinder axis. The screen hole density at the feed end is lower to prevent uncrushed material from leaking out too early, while the screen hole density at the discharge end is higher to facilitate the timely discharge of qualified material. The screen holes in the inner cylinder are used for coarse screening, and the screen holes in the middle cylinder are used for fine screening. The outer cylinder 4 has a non-porous structure and is only used for material collection. The inner cylinder 6 is equipped with a crushing mechanism, which includes a second drive motor 17. The second drive motor 17 is installed on the outside of the second end cover 3. The inner cylinder 6 is equipped with a rotating shaft 18. The output shaft of the second drive motor 17 is connected to the rotating shaft 18, which can drive the rotating shaft 18 to rotate. Multiple crushing blades 19 are installed on the rotating shaft 18. The number of crushing blades 19 is even. Two adjacent crushing blades 19 are arranged back to back. The size of the crushing blades 19 matches the inner diameter of the conical structure of the inner cylinder 6. The crusher blade 19 includes a mounting base 1901, which is circumferential and has a mounting hole in the center that matches the rotating shaft 18. Connecting plates 1902 are symmetrically welded to both sides of the mounting base 1901. Arc-shaped crushing sections 1903 are welded to the connecting plates 1902, and vertical crushing sections 1904 are vertically connected to the outer ends of the arc-shaped crushing sections 1903. A transverse crushing section 1905 is also welded between the two arc-shaped crushing sections 1903. All three sections—arc-shaped crushing sections 1903, vertical crushing sections 1904, and transverse crushing sections 1905—are equipped with sharp cutting edges, enabling efficient crushing of construction waste. The two back-to-back crusher blades 19 are perpendicular to each other in the axial direction, covering the entire space of the inner cylinder 6 during crushing, avoiding any dead zones. During operation, the first drive motor 10 and the second drive motor 17 are started. The first drive motor 10 drives the three-layer cylinder to rotate synchronously, and the second drive motor 17 drives the crushing blade 19 to rotate at high speed. Construction waste is fed into the inner cylinder 6 through the feed pipe 7. The crushing blade 19 impacts, shears, and splits the waste. The spiral plate 20 on the inner wall of the inner cylinder 6 pushes the material towards the discharge end, ensuring that the material is in full contact with the crushing blade 19 and preventing accumulation. Material with a particle size smaller than the inner cylinder screen hole is thrown out of the inner cylinder 6 under the action of centrifugal force and enters the annular space between the inner cylinder 6 and the middle cylinder 5. Larger pieces of material continue to be repeatedly crushed in the inner cylinder 6 until they pass through the screen hole. The material entering the inner wall of the middle cylinder 5 adheres to the inner wall of the middle cylinder 5 under the action of centrifugal force. The rotation speed of the middle cylinder 5 is higher than that of the inner cylinder 6. The material and the inner wall of the middle cylinder 5 generate relative motion, which realizes further crushing and grinding. The material with a particle size smaller than the screen hole of the middle cylinder is thrown out and enters the space between the middle cylinder 5 and the outer cylinder 4. It is collected by the outer cylinder 4 as fine aggregate. The material that cannot pass through the screen hole of the middle cylinder moves towards the discharge end under the push of the spiral plate 20 and is discharged through the first discharge pipe 8. The fine aggregate in the outer cylinder 4 moves towards the discharge end under the push of the spiral plate 20 and is discharged through the second discharge pipe 9, completing the entire process of crushing, screening and grading discharge.

[0030] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A construction waste treatment and recycling device, characterized in that, include: A first end cap (2) and a second end cap (3) are fixedly installed. An outer cylinder (4), a middle cylinder (5) and an inner cylinder (6) are rotatably connected between the first end cap (2) and the second end cap (3). The outer cylinder (4), the middle cylinder (5) and the inner cylinder (6) are coaxially sleeved from the outside to the inside. The outer cylinder (4), the middle cylinder (5) and the inner cylinder (6) are connected by transmission. The outer cylinder (4), the middle cylinder (5) and the inner cylinder (6) are all set as conical cylinders. The small end of the inner cylinder (6) is connected to the feed port. The large ends of the middle cylinder (5) and the outer cylinder (4) are connected to the first discharge port and the second discharge port, respectively. The inner cylinder (6) is equipped with a crushing mechanism for crushing materials; The inner cylinder (6) has a plurality of first sieve holes, and the middle cylinder (5) has a plurality of second sieve holes. The diameter of the first sieve holes is larger than the diameter of the second sieve holes.

2. The construction waste treatment and recycling equipment according to claim 1, characterized in that: Spiral plates (20) are circumferentially arranged on the inner sidewalls of the outer cylinder (4), the middle cylinder (5) and the inner cylinder (6). The spiral plates (20) are arranged along the length direction of the outer cylinder (4) and are used to transport materials from the small end of the cone shape to the large end.

3. The construction waste treatment and recycling equipment according to claim 1, characterized in that: A first gear ring (11) is coaxially fixed to the outer wall of the inner cylinder (6). The first gear ring (11) is located at one end of the inner cylinder (6). A plurality of first gears (12) mesh with the outer edge of the first gear ring (11). The plurality of first gears (12) are circumferentially spaced. The first gears (12) are rotatably connected to the first end cover (2). The plurality of first gears (12) mesh with the inner edge of a second gear ring (13). The second gear ring (13) is coaxially fixed to the outer wall of the inner cylinder (6). Inside the middle cylinder (5), a third gear ring (14) is coaxially fixed to the outer side of the middle cylinder (5). The outer edge of the third gear ring (14) is meshed with a plurality of second gears (15). The plurality of second gears (15) are circumferentially spaced. The second gears (15) are rotatably connected to the first end cover (2). The plurality of second gears (15) are all meshed with the inner edge of the fourth gear ring (16). The fourth gear ring (16) is coaxially fixed to the inner wall of the outer cylinder (4).

4. The construction waste treatment and recycling equipment according to claim 1, characterized in that: The small end of the inner cylinder (6) extends out of the first end cover (2) and is coaxially fixed to a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley via a synchronous belt drive. The second synchronous pulley is coaxially fixed to the output shaft of the first drive motor (10). The first drive motor (10) is fixedly installed.

5. The construction waste treatment and recycling equipment according to claim 1, characterized in that: The crushing mechanism includes a rotating shaft (18) coaxially disposed inside the inner cylinder (6). Multiple crushing blade groups are fixedly connected to the rotating shaft (18). Each crushing blade group includes two crushing blades (19). The rotating shaft (18) is rotatably connected to the second end cover (3). One end of the rotating shaft (18) passes through the second end cover (3) and is coaxially fixed to the output shaft of the second drive motor (17). The second drive motor (17) is fixedly connected to the second end cover (3).

6. The construction waste treatment and recycling equipment according to claim 5, characterized in that: The cutting edges of the two crushing blades (19) in the same crushing blade group are arranged opposite each other.

7. The construction waste treatment and recycling equipment according to claim 5, characterized in that: The crushing blade (19) includes a mounting base (1901), which is coaxially fixed to the rotating shaft (18). Two connecting plates (1902) are fixed to the outer side of the mounting base (1901). One end of an arc-shaped crushing part (1903) is fixed to the connecting plate (1902). A vertical crushing part (1904) is fixed to the other end of the arc-shaped crushing part (1903). A horizontal crushing part (1905) is fixed between the other end of the arc-shaped crushing part (1903) and the mounting base (1901). Both connecting plates (1902) and both arc-shaped breaking parts (1903) are symmetrically arranged along the axis of the rotating shaft (18).

8. The construction waste treatment and recycling equipment according to claim 5, characterized in that: Both the first sieve hole and the second sieve hole are set to be oblong or hexagonal, and the long side of the oblong hole is parallel to the axis of the inner cylinder (6).

9. The construction waste treatment and recycling equipment according to claim 5, characterized in that: The distribution trend of the first sieve hole is that the density gradually increases from the small end to the large end of the inner cylinder (6), and the distribution trend of the second sieve hole is the same as that of the first sieve hole.

10. A construction waste treatment and recycling equipment according to claim 5, characterized in that: The first end cap (2), the second end cap (3), and the first drive motor (10) are all fixedly connected to the support frame (1).

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