An environmentally friendly soil recycling equipment for construction waste

Abstract

This invention relates to the field of construction waste treatment equipment technology, and discloses an environmentally friendly recycled soil treatment device for construction waste. The device includes a housing with a feed hopper fixedly connected to the top and a discharge port on the outer side. A crushing assembly includes two crushing rollers mounted inside the housing for crushing the construction waste, symmetrically distributed along the central plane of the housing. A cleaning block, conforming to the outer circumference of the crushing rollers, is fixedly installed inside the housing. This environmentally friendly recycled soil treatment device for construction waste effectively solves the problem in existing technologies where construction waste contains a large amount of sticky soil components, which easily adhere to the outer circumference of the crushing rollers during crushing. Long-term operation leads to a thick layer of soil adhering to the surface of the crushing rollers, resulting in a smaller crushing gap, ineffective crushing, uneven crushing, and insufficient crushing of lumpy soil.

Description

Technical Field

[0001] This invention relates to the field of construction waste treatment equipment technology, specifically to an environmentally friendly soil recycling equipment for construction waste. Background Technology

[0002] With the continuous advancement of urbanization, urban renewal and infrastructure construction in my country, the amount of construction waste generated is increasing year by year, and its resource utilization has become the core development direction in the field of construction solid waste treatment. Regenerating construction waste into usable soil through harmless and resource-based treatment and applying it to landscaping, site backfilling and leveling projects can not only reduce the volume and harmlessly dispose of construction waste, but also effectively address the shortage of soil resources for engineering projects, demonstrating significant environmental benefits and economic value.

[0003] In the processing of recycled soil from construction waste, crushing and screening are the core steps determining the quality of the recycled soil and the overall processing efficiency. Existing processing equipment mostly adopts an integrated structure of crushing and screening. In the crushing stage, symmetrically arranged double-roll crushers are commonly used. Because construction waste contains a large amount of sticky soil components, these easily adhere to the outer circumference of the crushing rollers during crushing. Long-term operation leads to a thick layer of soil adhering to the roller surface, resulting in a smaller crushing gap, reduced crushing efficiency, and uneven crushing of the soil, with lumpy soil not being fully broken down. The soil that fails to meet the screening standards of subsequent screening components cannot be processed properly and requires repeated crushing, significantly reducing the overall processing efficiency of the equipment and increasing energy consumption and maintenance costs. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an environmentally friendly recycled soil treatment equipment for construction waste, which can effectively solve the problem that construction waste contains a large amount of sticky soil components, which are very easy to adhere to the outer circumference of the crushing roller during the crushing process. Long-term operation will cause a thick layer of waste soil to form on the surface of the crushing roller, which will result in a smaller crushing gap, failure of crushing effect, uneven crushing of waste soil, and failure of blocky waste soil to be fully crushed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an environmentally friendly soil recycling equipment for construction waste, comprising: The box body has a feed hopper fixedly connected to its top and a discharge port opened on its outer side. The crushing assembly includes two crushing rollers assembled in a housing for crushing construction waste. The crushing rollers are symmetrically distributed on the left and right sides along the center plane of the housing. A transmission gear is fixedly installed at the end of each crushing roller, and the two transmission gears mesh with each other. One end of the crushing roller away from the transmission gear is connected to an external drive unit. A cleaning block is fixedly installed in the housing and fits against the outer circumference of the crushing roller for removing the waste adhering to the outer circumference of the crushing roller. The box is also equipped with a screening component for screening the slag and soil after it has been crushed by the crushing roller.

[0006] Furthermore, the screening assembly includes a screening unit and a material guiding unit, wherein the material guiding unit is used to guide the construction waste soil crushed by the crushing roller onto the screening unit; The screening unit includes a screen plate assembled inside the housing. One end of the screen plate extends to the outside of the discharge port, and the screen plate is set in an inclined state. A vibrating unit is fixedly assembled on the outside of the screen plate to drive the screen plate to vibrate and improve screening efficiency.

[0007] Furthermore, a bearing rod penetrating the interior of the box is fixedly installed at the bottom of the sieve plate, and the bearing rod is provided in two sets and is symmetrically distributed on the left and right sides along the center plane of the sieve plate. Each set of bearing rods has two rods and is symmetrically distributed on the front and back sides along the center plane of the sieve plate. A strong spring is sleeved on the outer circumference of the bearing rod.

[0008] Furthermore, the sieve plate is configured with a wave-shaped structure, and the top of the sieve plate is provided with sieve holes. Multiple sieve holes are provided and arranged in an array along the center surface of the sieve plate. The top of the sieve holes is equipped with micro springs, and the bottom of the trough of the sieve plate is integrally formed with an arc-shaped protrusion.

[0009] Furthermore, the material guiding unit includes a material guiding plate fixedly installed inside the box body, and there are two material guiding plates that are symmetrically distributed along the center plane of the box body. The material guiding plates are inclined, and one of the material guiding plates is rotatably mounted with a movable plate by means of a pin at its bottom. A guide rod is fixedly installed on the outer side of the movable plate, and there are two guide rods that are symmetrically distributed along the center plane of the movable plate.

[0010] Furthermore, a guide groove is provided on the outer side of the housing to fit against the outer circumferential surface of the guide rod, and the central axis of the guide groove coincides with the central axis of the pin. The guide rod is connected to the outer side of the housing through an elastic element provided on its outer side.

[0011] Furthermore, the outer side of the housing is also equipped with a switching unit for adjusting the angle of the movable plate. The switching unit is used to adjust the rotation angle of the movable plate relative to the guide plate to adjust the guide path. The switching unit includes a drive motor fixedly installed on the outside of the housing, and a cam is fixedly installed on the output end of the drive motor. An abutment plate that fits against the outside of the cam is fixedly installed on the outer circumference of the pin shaft of the drive motor.

[0012] Furthermore, a positioning pin is fixedly installed on the side of the housing near the abutment plate, and a groove is opened on the outer side of the abutment plate that fits with the outer circumference of the positioning pin, and the groove is connected to the positioning pin through a magnetic component disposed inside it.

[0013] The technical solution provided by this invention has the following advantages compared with the prior art: 1. This invention is equipped with a cleaning block that fits snugly against the outer circumference of the crushing roller and the gap between the cutter head. As the crushing roller rotates continuously, the cleaning block continuously scrapes and cleans the sticky slag adhering to the roller surface, eliminating the slag layer on the roller surface in real time and preventing the reduction of the crushing gap due to material accumulation. At the same time, the crushed slag is directed by the guide plate, and the drive motor in the switching unit drives the cam to rotate continuously, periodically pushing against the abutment plate, driving the movable plate to perform reciprocating intermittent rotation around the pin shaft. The intermittent rotation action evenly spreads the slag over the entire screen surface, avoiding local accumulation of material, making full use of the effective screening area of ​​the screen surface, reducing the probability of screen hole blockage, and completely eliminating screening dead zones.

[0014] 2. This invention features a corrugated screen plate. The vibrating unit drives the screen plate to generate high-frequency directional vibration. The corrugated screen plate, combined with the trough-shaped arc protrusions, physically impedes and slows down the sliding slag, forcibly extending the residence time of the material on the screen surface and improving the fullness of screening. The screen holes adopt a tapered and gradually expanding structure. The small opening precisely limits the qualified recycled soil particle size, while the large opening expands the discharge channel, eliminating radial jamming dead angles and achieving self-cleaning of the inner wall of the screen holes. The micro springs swing synchronously with the screen plate at high frequency, removing sticky materials adhering to the screen hole openings in real time, preventing the screen plate from being blocked by slag particles during the screening process and affecting the normal use of the screen plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment of the present invention; Figure 3 This is a schematic diagram of the planar structure of an embodiment of the present invention; Figure 4 This is a schematic diagram of the three-dimensional separation structure of the screening unit in an embodiment of the present invention; Figure 5 This is a schematic diagram of the planar structure of the sieve plate according to an embodiment of the present invention; Figure 6 This is a cross-sectional view of the sieve plate according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional separation structure of the material guiding unit in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 7 A magnified structural diagram of part A in the middle; Figure 9 This is an embodiment of the present invention. Figure 6 A magnified structural diagram of section B in the middle.

[0017] The labels in the diagram represent: 1. Housing; 11. Feed hopper; 12. Discharge port; 13. Positioning pin; 2. Crushing assembly; 21. Crushing roller; 22. Transmission gear; 23. Cleaning block; 3. Screening assembly; 31. Screening unit; 311. Screen plate; 3111. Screen hole; 3112. Miniature spring; 3113. Arc-shaped protrusion; 312. Vibrating unit; 313. Bearing rod; 314. Strong spring; 32. Material guiding unit; 321. Material guiding plate; 322. Pin; 323. Movable plate; 324. Guide rod; 325. Guide groove; 326. Elastic element; 327. Drive motor; 328. Cam; 329. Abutment plate; 3291. Groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to embodiments.

[0020] Example:

[0021] Please see Figures 1-9 This invention provides a technical solution: an environmentally friendly soil recycling equipment for construction waste, comprising: Box 1, with a feed hopper 11 fixedly connected to the top of box 1, and a discharge port 12 opened on the outside of box 1; The crushing assembly 2 includes a crushing roller 21 assembled inside the housing 1 for crushing construction waste. Two crushing rollers 21 are provided and are symmetrically distributed on the left and right sides along the center plane of the housing 1. A transmission gear 22 is fixedly installed at the end of the crushing roller 21. The two transmission gears 22 mesh with each other. One end of the crushing roller 21 away from the transmission gear 22 is connected to an external drive unit. A cleaning block 23 is fixedly installed inside the housing 1 and is in contact with the outer circumference of the crushing roller 21 for removing the waste adhering to the outer circumference of the crushing roller 21. The housing 1 is also equipped with a screening component 3 for screening the slag and soil after it has been crushed by the crushing roller 21.

[0022] Screening assembly 3 includes screening unit 31 and material guiding unit 32. Material guiding unit 32 is used to guide the construction waste soil crushed by crushing roller 21 onto screening unit 31. The screening unit 31 includes a screen plate 311 assembled inside the housing 1. One end of the screen plate 311 extends to the outside of the discharge port 12, and the screen plate 311 is set in an inclined state. A vibrating unit 312 is fixedly assembled on the outside of the screen plate 311 to drive the screen plate 311 to generate vibration in order to improve screening efficiency.

[0023] A support rod 313 is fixedly installed at the bottom of the screen plate 311, penetrating the interior of the housing 1. There are two sets of support rods 313, which are symmetrically distributed along the center plane of the screen plate 311. Each set of support rods 313 has two rods, which are symmetrically distributed along the center plane of the screen plate 311. A strong spring 314 is sleeved on the outer circumference of the support rod 313. After the vibrating unit 312 is started, it drives the screen plate 311 to vibrate at high frequency. The support rod 313 at the bottom of the screen plate 311 and the sleeved strong spring 314 play a role in buffering and amplifying the amplitude, thereby enhancing the vibration effect of the screen plate 311.

[0024] The sieve plate 311 has a wave-shaped structure. The top of the sieve plate 311 has sieve holes 3111, and there are multiple sieve holes 3111 arranged in an array along the center surface of the sieve plate 3111. The top of the sieve holes 3111 is equipped with a micro spring 3112. The bottom of the trough of the sieve plate 3111 has an integrally formed arc-shaped protrusion 3113. The sieve plate 311 adopts a continuous wave-shaped structure. The sieve holes 3111 are opened on the inclined side of the wave, and the arc-shaped protrusion 3113 is integrally formed at the bottom of the trough. When the slag particles slide down the inclined surface of the wave to the trough area, the curved surface of the arc-shaped protrusion 3113 will directly block the downward trend of the particles and counteract the downward force of gravity. When the particles come into contact with the arc-shaped protrusion 3113, the direction of movement changes from downward sliding to upward climbing along the arc surface. The kinetic energy is greatly consumed. During the climbing process, the particle speed decreases rapidly, realizing passive forced deceleration and preventing the material from passing through the sieve plate 311 quickly.

[0025] The material guiding unit 32 includes a guide plate 321 fixedly installed inside the housing 1. Two guide plates 321 are symmetrically distributed along the center plane of the housing 1. The guide plates 321 are inclined. One guide plate 321 is rotatably mounted with a movable plate 323 via a pin 322 at its bottom. Two guide rods 324 are fixedly installed on the outer side of the movable plate 323, symmetrically distributed along the center plane of the movable plate 323. When the cam 328... When the protruding edge contacts the surface of the abutment plate 329, it applies an axial thrust to the abutment plate 329, causing the guide rod 324 to move in an arc along the guide groove 325. When the protruding edge of the cam 328 disengages from the abutment plate 329, the elastic restoring force of the elastic element 326 drives the guide rod 324 to reset the abutment plate 329. Through the above-mentioned cyclic movement, the movable plate 323 evenly spreads the crushed slag on the guide plate 321 onto the surface of the screen plate 311 of the screening unit 31, laying the foundation for subsequent efficient screening.

[0026] The outer side of the housing 1 is provided with a guide groove 325 that fits against the outer circumferential surface of the guide rod 324, and the central axis of the guide groove 325 coincides with the central axis of the pin 322. The guide rod 324 is connected to the outer side of the housing 1 through an elastic element 326 provided on its outer side. The central axis of the guide groove 325 coincides with the central axis of the pin 322, providing stable guidance for the guide rod 324. The elastic element 326 is a return spring, which facilitates the reset of the movable plate 323 along the guide hole.

[0027] The outer side of the housing 1 is also equipped with a switching unit for adjusting the angle of the movable plate 323. The switching unit is used to adjust the rotation angle of the movable plate 323 relative to the guide plate 321 to adjust the guide path. The switching unit includes a drive motor 327 fixedly installed on the outside of the housing 1, and a cam 328 fixedly installed on the output end of the drive motor 327. An abutment plate 329 that fits against the outside of the cam 328 is fixedly installed on the outer circumferential surface near the pin 322 of the drive motor 327.

[0028] A positioning pin 13 is fixedly installed on the side of the housing 1 near the abutment plate 329. The outer side of the abutment plate 329 has a groove 3291 that fits with the outer circumferential surface of the positioning pin 13, and the groove 3291 is connected to the positioning pin 13 by a magnetic component set inside it.

[0029] Working principle and advantages of this construction waste environmental recycling soil treatment equipment: During the feeding stage, the operator uses external transfer equipment to uniformly transport the construction waste to be processed to the feeding hopper 11 at the top of the box 1. The feeding hopper 11 initially guides the waste to ensure that the waste falls evenly into the working area of ​​the crushing component 2 inside the box 1, avoiding uneven feeding that causes the crushing roller 21 to become unbalanced and the crushing effect to be poor.

[0030] During the crushing stage, the external drive unit starts and outputs power, driving one of the connected crushing rollers 21 to rotate around its central axis. Since transmission gears 22 are fixedly installed at the ends of both crushing rollers 21, and these gears mesh with each other, the two crushing rollers 21 rotate synchronously in opposite directions under the action of gear transmission. Each crushing roller 21 has uniformly distributed crushing cutter discs mounted on its outer circumference. During rotation, the crushing cutter discs apply a combination of shearing, squeezing, and impact forces to the construction waste falling between the two rollers, crushing the blocky and granular waste to a preset particle size, providing qualified pre-treated material for subsequent screening.

[0031] During the synchronous cleaning phase, the construction waste contains some sticky mud with high water content. During crushing, this sticky mud easily adheres to the shaft of the crushing roller 21 and the surface of the crushing disc. Long-term accumulation can reduce the effective crushing area of ​​the crushing disc, decrease crushing efficiency, and even cause the crushing roller 21 to jam. To address this, the cleaning block 23, fixedly installed inside the housing 1, plays a crucial role. The cleaning block 23 is fitted between two adjacent crushing discs, conforming to the outer circumference of the crushing roller 21 and the outer side of the disc. As the crushing roller 21 continues to rotate, the cleaning block 23 continuously scrapes away the sticky mud adhering to the shaft and disc surface. The scraped-off mud enters the subsequent material feeding stage along with the crushed waste, effectively ensuring the continuous and stable operation of the crushing assembly 2, avoiding equipment failures caused by soil adhesion, and reducing maintenance costs.

[0032] During the material feeding stage, the mixed slag processed by the crushing component 2 falls evenly onto the material feeding unit 32 inside the box 1 under the action of gravity. The material feeding unit 32 consists of two symmetrically distributed inclined material feeding plates 321, which play a preliminary guiding role and ensure that the slag is smoothly guided to the area of ​​the screen plate 311. To achieve uniform distribution of slag on the screen plate 311 and avoid uneven screening caused by local accumulation, the switching unit is started synchronously: the drive motor 327 outputs power to drive the cam 328 to rotate around its own central axis. When the convex edge of the cam 328 contacts the surface of the abutment plate 329, it will apply an axial thrust to the abutment plate 329, forcing the abutment plate 329 to overcome the elastic force of the elastic element 326 and drive the guide rod 324 to move in an arc along the guide groove 325. When the convex edge of the cam 328 disengages from the abutment plate 329, the elastic restoring force of the elastic element 326 drives the guide rod 324 to reset the abutment plate 329, thereby driving the movable plate 323 to reciprocate around the central axis of the pin 322. Through the above-mentioned cyclic movement, the movable plate 323 evenly spreads the crushed slag on the guide plate 321 onto the surface of the screen plate 311 of the screening unit 31, laying the foundation for subsequent efficient screening. At the same time, the positioning pin 13 on the box 1 is connected to the groove 3291 of the abutment plate 329 by magnetic adsorption, ensuring the positioning accuracy of the movable plate 323 during rotation and avoiding deviation of the guide path.

[0033] In summary, the intermittent rotation of the movable plate 323 is achieved in coordination with the switching unit. When the cam 328 rotates, it periodically pushes the abutment plate 329, causing the movable plate 323 to swing back and forth around the pin 322, forming an intermittent "push-reset" motion. If the crushed slag conveyed by the guide plate 321 falls directly onto the screen plate 311, it is easy for the slag to accumulate locally on the screen plate 311 due to gravity concentration. However, when the movable plate 323 rotates intermittently, it periodically pushes the slag on the guide plate 321 to different areas of the screen plate 311, so that the slag evenly covers the surface of the screen plate 311, ensuring that the effective screening area of ​​the screen plate 311 is fully utilized and avoiding screening dead corners caused by local accumulation. At the same time, the intermittent motion can slow down the slag's downward speed, and in conjunction with the wave-shaped structure of the screen plate 311, it can prolong the residence time of the slag on the screen plate 311. This allows fine-grained construction waste with the required particle size to be fully exposed, improving the screening accuracy of recycled soil. The sticky mud contained in construction waste is prone to caking. If it enters the screen plate 311 directly in large quantities, it will easily clog the screen holes 3111. The intermittent rotation of the movable plate 323 can break up the caking waste to a certain extent, and at the same time disperse the waste into small batches and transport them to the screen plate 311, reducing the probability of the caking waste coming into concentrated contact with the screen holes 3111, avoiding the clogging of the screen holes 3111, and ensuring the continuous operation of the screening process. If the waste continuously and concentratedly falls onto the screen plate 311, it will continuously impact the screen plate 311 and the bottom bearing rod 313 and strong spring 314, which will easily lead to component wear and spring fatigue in the long term. The intermittent rotation of the movable plate 323 can transport the waste to the screen plate 311 in batches and stably, dispersing the impact force.

[0034] During the screening stage, the vibrating unit 312 of the screening unit 31 starts, driving the screen plate 311 to vibrate at high frequency. The bearing rod 313 at the bottom of the screen plate 311 and the sleeved strong spring 314 play a role in buffering and amplifying the amplitude, enhancing the vibration effect of the screen plate 311. The screen plate 311 adopts a wave-shaped structure design, with multiple screen holes 3111 arranged in an array on its top. The micro springs 3112 installed on the top of the screen holes 3111 can prevent sticky slag from clogging the screen holes 3111, while the arc-shaped protrusions 3113 at the bottom of the troughs can slow down the downward speed of the slag, extend the screening time, and improve the screening accuracy. Under vibration, fine-grained construction waste with a particle size smaller than the sieve aperture 3111 and meeting the standards for recycled soil will pass through the sieve aperture 3111 and leak out from under the sieve plate 311, thus completing the collection of recycled soil. Meanwhile, unqualified lumpy construction waste with a particle size larger than the sieve aperture 3111 will slide along the inclined sieve plate 311 under the action of gravity and vibration inertia, and will eventually be discharged from the discharge port 12 on the outside of the box 1. It can then be subjected to secondary crushing or other resource utilization, realizing the graded treatment of construction waste and maximizing resource recovery.

[0035] In summary, the screen hole 3111 is designed as a trumpet-shaped, gradually expanding conical hole, with its small opening facing the screening feed side, i.e. the side of the material guiding unit 32, and its large opening facing the discharge side below the screen plate 311. The screen hole 3111 is opened entirely on the inclined side wall of the corrugated screen plate 311. This gradually expanding conical structure ensures that material only comes into contact with the smaller opening for particle size screening. Once a particle enters the hole, the channel space gradually expands, eliminating any radial jamming dead angles. Even if a particle deviates during vibration, it can still pass through smoothly or fall off on its own under vibration excitation, thus structurally preventing the phenomenon of jamming. The smaller opening is used to precisely limit the qualified particle size, while the larger opening significantly expands the discharge channel. Fine particles can quickly fall through the larger opening after passing through the smaller opening, avoiding congestion and accumulation inside the screen hole 3111, thereby effectively increasing the screening throughput per unit time. At the same time, the conical structure has no right angles or grooves, preventing sticky mud from adhering to the surface of the hole. Combined with the vibration of the screen plate 311 itself, the material can automatically slide down along the conical surface, achieving a self-cleaning effect of the channel.

[0036] A micro spring 3112 is installed at the small end (feed inlet) of the screen hole 3111. This spring 3112 vibrates at high frequency with the vibration of the screen plate 311, which can disperse and remove sticky mud and fine particles adhering to the hole opening in real time. It can clear blockages before the material enters the screen hole 3111, thus preventing blockages from occurring at the source. In addition, since the screen hole 3111 is opened on the inclined side of the corrugated screen plate 311, the material slides down along the inclined surface of the wave, rather than impacting the screen hole 3111 vertically. The particles contact the opening tangentially, making it less likely for them to be pushed vertically into the hole and cause jamming, which greatly reduces the probability of blockage. The corrugated structure also disperses the material into multiple crests and troughs, preventing the material from accumulating in a certain screen hole 3111 area, so that the force on each screen hole 3111 is uniform and the screening area is fully utilized.

[0037] Throughout the entire process, all components work together in concert. Crushing component 2 achieves efficient crushing of construction waste, cleaning block 23 ensures stable operation of crushing component 2, material guiding unit 32 ensures uniform distribution of construction waste, and screening unit 31 completes precise screening of recycled soil, forming a complete environmentally friendly recycling process for construction waste. This effectively solves technical problems such as uneven crushing, construction waste adhesion, and inefficient screening in existing equipment, thereby improving the efficiency of resource utilization of construction waste.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction waste environmentally friendly recycled soil treatment equipment, characterized in that, include: Box (1), the top of the box (1) is fixedly connected to the feed hopper (11), and the outer side of the box (1) is provided with a discharge port (12). The crushing assembly (2) includes a crushing roller (21) assembled in the housing (1) for crushing construction waste. The crushing roller (21) has two rollers and is symmetrically distributed on the left and right sides along the center plane of the housing (1). A transmission gear (22) is fixedly installed at the end of the crushing roller (21). The two transmission gears (22) mesh with each other. One end of the crushing roller (21) away from the transmission gear (22) is connected to an external drive unit. A cleaning block (23) is fixedly installed in the housing (1) and fits against the outer circumference of the crushing roller (21) for removing the waste adhering to the outer circumference of the crushing roller (21). The box (1) is also equipped with a screening component (3) for screening the slag after it has been crushed by the crushing roller (21).

2. The construction waste environmental recycling soil treatment equipment according to claim 1, characterized in that: The screening assembly (3) includes a screening unit (31) and a material guiding unit (32), wherein the material guiding unit (32) is used to guide the construction waste soil crushed by the crushing roller (21) onto the screening unit (31); The screening unit (31) includes a screen plate (311) assembled inside the housing (1). One end of the screen plate (311) extends to the outside of the discharge port (12), and the screen plate (311) is set in an inclined state. A vibrating unit (312) is fixedly assembled on the outside of the screen plate (311) to drive the screen plate (311) to generate vibration in order to improve screening efficiency.

3. The construction waste environmental recycling soil treatment equipment according to claim 2, characterized in that: The bottom of the sieve plate (311) is fixedly installed with a bearing rod (313) that penetrates the interior of the box (1). The bearing rod (313) is provided in two sets and is symmetrically distributed along the center plane of the sieve plate (311). Each set of bearing rods (313) is provided in two sets and is symmetrically distributed along the center plane of the sieve plate (311). A strong spring (314) is sleeved on the outer circumference of the bearing rod (313).

4. The construction waste environmental recycling soil treatment equipment according to claim 3, characterized in that: The sieve plate (311) is arranged in a wave-shaped structure. The top of the sieve plate (311) is provided with sieve holes (3111), and there are multiple sieve holes (3111) arranged in an array along the center surface of the sieve plate (3111). The top of the sieve holes (3111) is equipped with micro spring pieces (3112), and the bottom of the trough of the sieve plate (311) is integrally formed with an arc-shaped protrusion (3113).

5. The construction waste environmental recycling soil treatment equipment according to claim 2, characterized in that: The material guiding unit (32) includes a material guiding plate (321) fixedly installed inside the box (1), and the material guiding plate (321) has two and is symmetrically distributed along the center plane of the box (1). The material guiding plate (321) is inclined. One of the material guiding plates (321) is rotatably mounted with a movable plate (323) through a pin (322) at its bottom. A guide rod (324) is fixedly installed on the outside of the movable plate (323), and the guide rod (324) has two and is symmetrically distributed along the center plane of the movable plate (323).

6. The construction waste environmental recycling soil treatment equipment according to claim 5, characterized in that: The outer side of the housing (1) is provided with a guide groove (325) that fits against the outer circumferential surface of the guide rod (324), and the central axis of the guide groove (325) coincides with the central axis of the pin (322). The guide rod (324) is connected to the outer side of the housing (1) through an elastic element (326) provided on its outer side.

7. The construction waste environmental recycling soil treatment equipment according to claim 5, characterized in that: The outer side of the housing (1) is also equipped with a switching unit for adjusting the angle of the movable plate (323). The switching unit is used to adjust the rotation angle of the movable plate (323) relative to the guide plate (321) to adjust the guide path. The switching unit includes a drive motor (327) fixedly installed on the outside of the housing (1), and a cam (328) is fixedly installed at the output end of the drive motor (327). An abutment plate (329) that fits against the outside of the cam (328) is fixedly installed on the outer circumference of the pin (322) near the drive motor (327).

8. The construction waste environmental recycling soil treatment equipment according to claim 7, characterized in that: The housing (1) is fixedly installed with a positioning pin (13) on the side near the abutment plate (329). The outer side of the abutment plate (329) is provided with a groove (3291) that fits against the outer circumference of the positioning pin (13). The groove (3291) is connected to the positioning pin (13) through a magnetic component set inside it.

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