Green construction for building waste processing equipment

By combining a primary crushing mechanism, a secondary crushing mechanism, and a rebar pushing mechanism, the problems of uneven particle size and rebar entanglement in existing equipment when processing construction waste are solved, achieving efficient waste processing and rebar separation, and improving equipment stability and aggregate quality.

CN122230862APending Publication Date: 2026-06-19THE 12TH CONSTR GRP OF SHAANXI CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE 12TH CONSTR GRP OF SHAANXI CONSTR ENG CO LTD
Filing Date
2026-05-08
Publication Date
2026-06-19

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Abstract

This invention provides a green construction waste treatment equipment, relating to the field of construction waste treatment. It includes a primary crushing mechanism and a secondary crushing mechanism. The primary crushing mechanism includes a primary crushing chamber with two impact hammers at its top and a feeding plate at its bottom left. The secondary crushing mechanism includes a secondary crushing chamber with a crushing drum at its bottom, and impact blocks fixedly connected to the outer wall of the crushing drum. This device, through its two-stage structure of primary coarse crushing and secondary fine crushing, first uses the impact hammers to crush large pieces of waste. A dual-motor driven screw feeding mechanism, in conjunction with a guide plate and a dredging frame, ensures smooth feeding and discharging between the primary and secondary crushing mechanisms, guaranteeing continuous and efficient operation. The waste particles are then refined by the crushing drum and impact blocks, progressively reducing the particle size and significantly improving the uniformity of the recycled aggregate particle size, meeting the quality requirements of green construction for aggregates.
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Description

Technical Field

[0001] This invention relates to the field of construction waste treatment, specifically to a green construction equipment for construction waste treatment. Background Technology

[0002] In green building construction, resource conservation and environmental protection are the core principles. Construction waste will inevitably be generated during construction. In order to conserve resources and protect the environment, construction waste needs to be classified, processed and recycled. When demolishing walls or wall panels, the concrete blocks demolished at the construction site are often accompanied by a large amount of waste such as wooden formwork, bamboo plywood, plastic formwork, square timber, iron wire, and binding wire. This requires the use of waste processing equipment to crush and separate the waste.

[0003] Existing construction waste processing equipment mostly uses single-chamber crushing, which makes it difficult to differentiate the processing of large, hard waste materials from small impurities. This easily leads to problems such as over-crushing or incomplete crushing, resulting in poor uniformity of recycled aggregate particle size and low waste recycling rate. This fails to meet the resource recycling requirements of green construction. At the same time, construction waste contains a large amount of steel bars, and traditional crushing mechanisms cannot effectively separate steel bars from aggregates. Steel bars are easily entangled on the crushing components, causing equipment downtime, increased wear, and reduced operational stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a green construction equipment for treating construction waste, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a green construction waste treatment equipment, comprising a primary crushing mechanism and a secondary crushing mechanism. The primary crushing mechanism includes a primary crushing chamber with two hammers installed at the top of the chamber and a feeding plate on the left side of the bottom. The secondary crushing mechanism includes a secondary crushing chamber with a discharge port at the bottom. The bottom of the secondary crushing chamber is connected to an external metal screening mechanism. A crushing drum is installed at the bottom of the secondary crushing chamber. A hammer is fixedly connected to the outer wall of the crushing drum, and two protrusions are arrayed on the outer wall of the hammer. A steel bar pushing mechanism is installed inside the crushing drum. The steel bar pushing mechanism includes a fixed shaft located on the right side of the crushing drum's axis. Limit sleeves are fixedly connected to both ends of the fixed shaft. A sliding rail is provided between the inner wall of the limit sleeve and the outer wall of the fixed shaft. A feeding frame is slidably connected between the sliding rails, and the end of the feeding frame away from the fixed shaft passes through the crushing drum.

[0006] Preferably, an impact head is fixedly connected to the bottom wall of the hammer, a guide rod is fixedly connected to the top of the hammer inside the top wall of the primary crushing chamber, a lifting plate is fixedly connected to the top of the guide rod, and a feed hopper is connected through the rear side wall of the primary crushing chamber near the hammer.

[0007] Preferably, a support plate is fixedly connected to the top wall of the primary crushing chamber between the guide rods. Support columns are fixedly connected to the left and right sides of the support plate near the guide rods. A drive shaft is rotatably connected to the upper and lower sides of the support plate and the support columns. A drive motor is fixedly connected to the left end of the drive shaft at the bottom of the support plate. The drive shaft consists of a sprocket and a drive rod. A drive chain meshes between the drive shafts on the left and right sides of the support plate. An upper pull rod is fixedly connected to the side wall of the drive chain at the bottom wall of the lifting plate.

[0008] Preferably, the bottom wall of the primary crushing chamber is inlaid with an impact plate, and a metal pad is fixedly connected to the bottom wall of the primary crushing chamber below the impact plate. A receiving opening is opened on the left side of the bottom of the primary crushing chamber, which is slidably connected to the feeding plate. The bottom end of the feeding plate is slidably connected to the surface of the impact plate.

[0009] Preferably, a limiting plate is fixedly connected to the top wall of the left end of the feeding plate. The limiting plate and the feeding plate are arranged in an "L" shape. A lead screw is rotatably connected between the inner sides of the left end of the limiting plate and the outer wall of the primary crushing chamber. A bearing frame is fixedly connected between the bottom left end of the primary crushing chamber and the left end of the lead screw. A connecting shaft is engaged at the bottom right end of the lead screw. The connecting shaft is rotatably connected to the outer wall of the primary crushing chamber. A power shaft is engaged at the bottom end of the connecting shaft. The power shaft is fixedly connected to the output shaft of the dual-head motor. The right end of the lead screw, the upper and lower ends of the connecting shaft, and the end of the power shaft are all engaged by bevel gears.

[0010] Preferably, the right end of the primary crushing chamber and the left end of the secondary crushing chamber are connected by long bolts. A guide plate is rotatably connected to the bottom of the right end of the primary crushing chamber. A dredging frame is rotatably connected to the top of the left end of the secondary crushing chamber below the guide plate. A collection hopper is fixedly connected to the top of the secondary crushing chamber. A splash guard is snapped into the top of the collection hopper near the position of the primary crushing chamber.

[0011] Preferably, the front and rear ends of the crushing drum are rotatably connected to the inner wall of the secondary crushing chamber, and a gap is left between the striking blocks to engage with the unblocking frame. An impact plate is provided inside the secondary crushing chamber on the right side of the crushing drum, and a sliding groove is opened inside the impact plate to engage with the feeding frame.

[0012] Preferably, the front and rear ends of the fixed shaft are fixedly connected to the outer wall of the secondary crushing chamber through a fixed frame, and the front and rear ends of the feeding frame are rotatably connected to rollers inside the sliding rail. The crushing drum has a through hole that is slidably connected to the feeding frame.

[0013] Preferably, a toothed ring is fixedly connected to the outer wall of the front end of the crushing drum, and a servo motor is provided on the outer wall of the secondary crushing chamber below the crushing drum. The rear end of the output shaft of the servo motor meshes with the toothed ring through a gear.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This green construction equipment for treating construction waste utilizes a two-stage structure of primary coarse crushing and secondary fine crushing. First, large pieces of waste are crushed by a hammer. A screw feeding mechanism driven by a dual-head motor, along with a guide plate and a dredging frame, ensures smooth feeding and discharging between the primary and secondary crushing mechanisms, guaranteeing continuous and efficient operation of the equipment. Then, the waste is refined by a crushing drum and hammering blocks, gradually reducing the particle size and significantly improving the uniformity of recycled aggregate particle size, thus meeting the quality requirements of green construction for aggregates.

[0015] 2. This green construction method is used in construction waste treatment equipment. By setting up a steel bar pushing mechanism, the feeding frame actively pushes the steel bars under the rotation of the crushing drum, which effectively solves the problem of steel bars getting tangled in the crushing parts, reduces the probability of equipment downtime, improves operational stability and service life, achieves efficient separation and recycling of aggregates and steel bars, and reduces the amount of waste landfill. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the support frame structure of the present invention; Figure 3 This is a schematic diagram of the guide plate structure of the present invention; Figure 4 This is a schematic diagram of the counter-attack plate structure of the present invention; Figure 5 This is a schematic diagram of the unblocking frame structure of the present invention; Figure 6 This is a schematic diagram of the striking block structure of the present invention; Figure 7 This is a schematic diagram of the feeding rack structure of the present invention; Figure 8 This is a schematic diagram of the feeding plate structure of the present invention; Figure 9 This is a schematic diagram of the impact head structure of the present invention.

[0017] In the diagram: 1. Primary crushing chamber; 2. Impact hammer; 3. Feeding plate; 4. Secondary crushing chamber; 5. Crushing drum; 6. Impact block; 7. Fixed shaft; 8. Limiting sleeve; 9. Sliding rail; 10. Feeding rack; 11. Impact head; 12. Guide rod; 13. Lifting plate; 14. Feed hopper; 15. Support plate; 16. Support column; 17. Drive shaft; 18. Drive motor; 19. Drive chain; 20. Upper pull rod; 21. Impact plate; 22. Collection port; 23. Limiting plate; 24. Lead screw; 25. Bearing frame; 26. Connecting shaft; 27. Power shaft; 28. Dual-head motor; 29. ​​Guide plate; 30. Unblocking frame; 31. Collection hopper; 32. Splash guard; 33. Impact plate; 34. Fixed frame; 35. Roller; 36. Gear ring; 37. Servo motor; 38. Metal pad. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0020] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0022] like Figure 1-9As shown, a green construction waste treatment equipment includes a primary crushing mechanism and a secondary crushing mechanism. The primary crushing mechanism includes a primary crushing chamber 1, with two hammers 2 symmetrically distributed on both sides of the central axis inside the primary crushing chamber 1, enabling uniform impact on the waste. A feeding plate 3 is located on the left side of the bottom of the primary crushing chamber 1. The secondary crushing mechanism includes a secondary crushing chamber 4, with a discharge port at the bottom. The bottom of the secondary crushing chamber 4 is connected to an external metal screening mechanism. A crushing roller 5 is located at the bottom of the secondary crushing chamber 4, and hammers are fixedly connected to the outer wall of the crushing roller 5. Block 6 has two protrusions connected to its outer wall array. The protrusions are made of wear-resistant alloy material, which can further improve the crushing effect and refine the waste particles. The crushing drum 5 is equipped with a steel bar pushing mechanism, which includes a fixed shaft 7. The fixed shaft 7 is located on the right side of the shaft of the crushing drum 5. The front and rear ends of the fixed shaft 7 are fixedly connected to limit sleeves 8. A sliding rail 9 is opened between the inner wall of the limit sleeve 8 and the outer wall of the fixed shaft 7. A feeding frame 10 is slidably connected between the sliding rails 9. The end of the feeding frame 10 away from the fixed shaft 7 passes through the crushing drum 5. The feeding frame 10 slides back and forth with the rotation of the crushing drum 5 to complete the pushing of the steel bar.

[0023] In an optional embodiment, an impact head 11 is fixedly connected to the bottom wall of the hammer 2, a guide rod 12 is fixedly connected to the top of the hammer 2 inside the top wall of the primary crushing chamber 1, a lifting plate 13 is fixedly connected to the top of the guide rod 12, and a feed hopper 14 is connected through the rear side wall of the primary crushing chamber 1 near the hammer 2.

[0024] In this embodiment, the impact head 11 is made of high-hardness wear-resistant steel, which effectively improves the impact strength and wear resistance, extends the service life, and avoids damage caused by long-term impact. The guide rod 12 ensures that the hammer 2 moves up and down in the vertical direction, avoiding deviation during the impact process.

[0025] In an optional embodiment, a support plate 15 is fixedly connected to the top wall of the primary crushing chamber 1 between the guide rods 12. Support columns 16 are fixedly connected to the left and right sides of the support plate 15 near the guide rods 12. A drive shaft 17 is rotatably connected to the upper and lower sides between the support plate 15 and the support columns 16. A drive motor 18 is fixedly connected to the left end of the drive shaft 17 at the bottom of the support plate 15. The drive shaft 17 is composed of a sprocket and a drive rod. A drive chain 19 is meshed between the drive shafts 17 on the left and right sides of the support plate 15. An upper pull rod 20 is fixedly connected to the side wall of the drive chain 19 at the bottom wall of the lifting plate 13.

[0026] In this embodiment, the support plate 15 and the support column 16 are used to install the transmission shaft 17 and improve the stability of the drive mechanism. The upper pull rod 20 is set perpendicular to the transmission chain 19 and is used to drive the lifting plate 13 to move up and down.

[0027] In an optional embodiment, an impact plate 21 is embedded in the bottom wall of the primary crushing chamber 1, and a metal pad 38 is fixedly connected to the bottom wall of the primary crushing chamber 1 below the impact plate 21. A receiving opening 22 is opened on the left side of the bottom of the primary crushing chamber 1, which is slidably connected to the feeding plate 3. The bottom end of the feeding plate 3 is slidably connected to the surface of the impact plate 21.

[0028] In this embodiment, the impact plate 21 is also made of high-hardness wear-resistant material. It works with the impact head 11 to form an impact effect, breaking large pieces of waste. The metal pad 38 is set to support the impact plate 21, enhance the impact resistance of the impact plate 21, avoid deformation or damage of the impact plate 21 due to long-term impact, and extend its service life. The storage opening 22 is set to facilitate the complete storage of the feeding plate 3, and avoid obstructing the concrete block when not in operation.

[0029] In an optional embodiment, a limiting plate 23 is fixedly connected to the top wall of the left end of the feeding plate 3. The limiting plate 23 and the feeding plate 3 are arranged in an "L" shape. A lead screw 24 is rotatably connected between the inner sides of the left end of the limiting plate 23 and the outer wall of the primary crushing chamber 1. A bearing frame 25 is fixedly connected between the bottom left end of the primary crushing chamber 1 and the left end of the lead screw 24. A connecting shaft 26 is engaged at the bottom right end of the lead screw 24. The connecting shaft 26 is rotatably connected to the outer wall of the primary crushing chamber 1. A power shaft 27 is engaged at the bottom end of the connecting shaft 26. The power shaft 27 is fixedly connected to the output shaft of the dual-head motor 28. The right end of the lead screw 24, the upper and lower ends of the connecting shaft 26, and the ends of the power shaft 27 are all engaged by bevel gears.

[0030] In this embodiment, the limiting plate 23 is provided to prevent uncrushed waste material from sliding from the primary crushing chamber 1 into the secondary crushing chamber 4 during the feeding process of the feeding plate 3, and the bearing frame 25 is provided to support the lead screw 24 to ensure stable rotation of the lead screw 24.

[0031] In an optional embodiment, the right end of the primary crushing chamber 1 and the left end of the secondary crushing chamber 4 are connected by long bolts. A guide plate 29 is rotatably connected to the bottom of the right end of the primary crushing chamber 1. A dredging frame 30 is rotatably connected to the top of the left end of the secondary crushing chamber 4 below the guide plate 29. A collection hopper 31 is fixedly connected to the top of the secondary crushing chamber 4. A splash guard 32 is snapped into the top of the collection hopper 31 near the position of the primary crushing chamber 1. The front and rear ends of the crushing roller 5 are rotatably connected to the inner wall of the secondary crushing chamber 4. A gap is left between the striking blocks 6 to engage with the dredging frame 30. An impact plate 33 is provided inside the secondary crushing chamber 4 on the right side of the crushing roller 5. A sliding groove that engages with the feeding frame 10 is opened inside the impact plate 33.

[0032] In this embodiment, the guide plate 29 is inclined to facilitate the accurate falling of the waste material after primary crushing into the secondary crushing chamber 4. The crushing drum 5 rotates back one revolution during operation. At the same time as it rotates back, the unblocking frame 30 unblocks the waste material mixed between the striking blocks 6. The splash plate 32 limits the waste material to prevent it from flying out of the crushing chamber during the crushing process. The impact plate 33 is arc-shaped and is used to cooperate with the striking blocks 6 to repeatedly impact and rub the waste material. The opening of the chute facilitates the rotation of the feeding frame 10.

[0033] In an optional embodiment, the front and rear ends of the fixed shaft 7 are fixedly connected to the outer wall of the secondary crushing chamber 4 via a fixed frame 34. The front and rear ends of the feeding frame 10 are rotatably connected to rollers 35 inside the sliding rail 9. The crushing drum 5 has a through hole that forms a sliding connection with the feeding frame 10. A toothed ring 36 is fixedly connected to the outer wall of the front end of the crushing drum 5. A servo motor 37 is provided on the outer wall of the secondary crushing chamber 4 below the crushing drum 5. The rear end of the output shaft of the servo motor 37 meshes with the toothed ring 36 via a gear.

[0034] In this embodiment, the roller 35 reduces the friction between the feeding rack 10 and the sliding rail 9, improves the sliding flexibility, and reduces the energy consumption and wear of the equipment. The feeding rack 10 enables the effective pushing of the reinforcing bars and prevents the reinforcing bars from getting stuck between the crushing drum 5 and the impact plate 33.

[0035] During operation, construction waste falls from the feed hopper 14 into the primary crushing chamber 1, landing above the impact plate 21. The drive motor 18 starts, rotating the transmission shaft 17, which in turn drives the transmission chain 19. The transmission chain 19 pulls the lifting plate 13 via the upper pull rod 20, causing the guide rod 12 to move upward. When the upper pull rod 20 disengages from the lifting plate 13, the hammer 2, under its own weight, drives the impact head 11 to perform high-frequency impact on the waste. Combined with the reaction force of the bottom impact plate 21, large pieces of waste are crushed into small and medium-sized particles. After the primary crushing is completed, the dual-head motor 28 starts, driving the lead screw 24 to rotate via the power shaft 27 and connecting shaft 26. The lead screw 24, through the limit plate 23, drives the feeding plate 3 along the receiving opening 22. The crushed waste is pushed to the guide plate 29 and falls into the collection hopper 31 at the top of the secondary crushing chamber 4. The servo motor 37 drives the gear ring 36 to rotate the crushing drum 5 through the gear. The striking block 6 impacts and squeezes the waste at high frequency. At the same time, the protrusions on the striking block 6 further refine the particles, realizing secondary fine crushing. The waste repeatedly collides and rubs between the crushing drum 5 and the impact plate 33 until the preset particle size is reached. When the crushing drum 5 rotates, the feeding frame 10 moves in the sliding rail 9 under the action of the roller 35. When the feeding frame 10 moves to the position close to the impact plate 33, it extends the drum and pushes the wrapped steel bars to the lower right. The finely crushed aggregate is discharged through the bottom of the secondary crushing chamber 4.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0037] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A green construction waste treatment equipment, comprising a primary crushing mechanism and a secondary crushing mechanism, characterized in that: The primary crushing mechanism includes a primary crushing chamber (1), with two hammers (2) installed at the top of the primary crushing chamber (1) and a feeding plate (3) installed on the left side of the bottom of the primary crushing chamber (1). The secondary crushing mechanism includes a secondary crushing chamber (4), a discharge port is provided at the bottom of the secondary crushing chamber (4), the bottom of the secondary crushing chamber (4) is connected to an external metal screening mechanism, a crushing drum (5) is provided at the bottom of the interior of the secondary crushing chamber (4), a striking block (6) is fixedly connected to the outer wall of the crushing drum (5), two protrusions are arrayed on the outer wall of the striking block (6), and a steel bar pushing mechanism is provided inside the crushing drum (5). The steel bar pushing mechanism includes a fixed shaft (7), which is located on the right side of the shaft of the crushing drum (5). Limiting sleeves (8) are fixedly connected to both ends of the fixed shaft (7). A sliding rail (9) is provided between the inner wall of the limiting sleeve (8) and the outer wall of the fixed shaft (7). A feeding frame (10) is slidably connected between the sliding rails (9). The end of the feeding frame (10) away from the fixed shaft (7) passes through the crushing drum (5).

2. The green construction waste treatment equipment according to claim 1, characterized in that: The bottom wall of the hammer (2) is fixedly connected to an impact head (11), the top of the hammer (2) is fixedly connected to a guide rod (12) inside the top wall of the primary crushing chamber (1), the top of the guide rod (12) is fixedly connected to a lifting plate (13), and the rear side wall of the primary crushing chamber (1) is connected to a feed hopper (14) near the hammer (2).

3. The green construction waste treatment equipment according to claim 2, characterized in that: The top wall of the primary crushing chamber (1) is fixedly connected to the guide rod (12) with a support plate (15). Support columns (16) are fixedly connected to the left and right sides of the support plate (15) near the guide rod (12). A drive shaft (17) is rotatably connected to the upper and lower sides of the support plate (15) and the support column (16). A drive motor (18) is fixedly connected to the left end of the drive shaft (17) at the bottom of the support plate (15). The drive shaft (17) is composed of a sprocket and a drive rod. A drive chain (19) meshes between the drive shaft (17) on the left and right sides of the support plate (15). An upper pull rod (20) is fixedly connected to the side wall of the drive chain (19) at the bottom wall of the lifting plate (13).

4. The green construction waste treatment equipment according to claim 3, characterized in that: The bottom wall of the primary crushing chamber (1) is inlaid with an impact plate (21). The bottom wall of the primary crushing chamber (1) is fixedly connected to a metal pad (38) below the impact plate (21). The metal pad (38) is set on the equipment installation ground. The bottom left side of the primary crushing chamber (1) is provided with a receiving port (22) that is slidably connected to the feeding plate (3). The bottom end of the feeding plate (3) is slidably connected to the surface of the impact plate (21).

5. The green construction waste treatment equipment according to claim 4, characterized in that: The top wall of the left end of the feeding plate (3) is fixedly connected to the limiting plate (23). The limiting plate (23) and the feeding plate (3) are arranged in an "L" shape. The inner sides of the left end of the limiting plate (23) are rotatably connected to the outer wall of the primary crushing chamber (1). The bottom of the left end of the primary crushing chamber (1) is fixedly connected to the left end of the screw (24). The bottom of the right end of the screw (24) is engaged with the connecting shaft (26). The connecting shaft (26) is rotatably connected to the outer wall of the primary crushing chamber (1). The bottom end of the connecting shaft (26) is engaged with the power shaft (27). The power shaft (27) is fixedly connected to the output shaft of the double-head motor (28). The right end of the screw (24), the upper and lower ends of the connecting shaft (26) and the end of the power shaft (27) are all engaged by bevel gears.

6. The green construction waste treatment equipment according to claim 5, characterized in that: The right end of the primary crushing chamber (1) and the left end of the secondary crushing chamber (4) are connected by long bolts. A guide plate (29) is rotatably connected to the bottom of the right end of the primary crushing chamber (1). A dredging frame (30) is rotatably connected to the top of the left end of the secondary crushing chamber (4) below the guide plate (29). A collection hopper (31) is fixedly connected to the top of the secondary crushing chamber (4). A splash guard (32) is snapped into the top of the collection hopper (31) near the position of the primary crushing chamber (1).

7. The green construction waste treatment equipment according to claim 6, characterized in that: The front and rear ends of the crushing drum (5) are rotatably connected to the inner wall of the secondary crushing chamber (4). There is a gap between the striking blocks (6) that engages with the unblocking frame (30). Inside the secondary crushing chamber (4), on the right side of the crushing drum (5), there is a counter-attack plate (33). Inside the counter-attack plate (33), there is a groove that engages with the feeding frame (10).

8. The green construction waste treatment equipment according to claim 7, characterized in that: The front and rear ends of the fixed shaft (7) are fixedly connected to the outer wall of the secondary crushing chamber (4) through the fixed frame (34). The front and rear ends of the feeding frame (10) are rotatably connected to the rollers (35) inside the sliding rail (9). The crushing drum (5) has a through hole that is slidably connected to the feeding frame (10).

9. The green construction waste treatment equipment according to claim 8, characterized in that: A toothed ring (36) is fixedly connected to the outer wall of the front end of the crushing drum (5). A servo motor (37) is provided on the outer wall of the secondary crushing chamber (4) below the crushing drum (5). The rear end of the output shaft of the servo motor (37) meshes with the toothed ring (36) through a gear.