Waste treatment device for civil engineering construction

Abstract

The waste treatment device for civil engineering construction comprises a machine shell, a fixed block is fixedly installed at the bottom of a frame head, a hydraulic cylinder is arranged in the fixed block, a telescopic shaft is movably arranged at the output end of the hydraulic cylinder, and a movable cone is fixedly connected to the bottom of the telescopic shaft; a driving motor is arranged in the supporting block, the output end of the driving motor is located below the supporting block, an output shaft of the driving motor is fixedly connected with a rotating shaft, hammer plates are evenly arranged on the outer ring of the rotating shaft, and an impact sleeve is fixedly installed at the position, located on the outer ring of the rotating shaft, of the inner wall of the machine shell; by means of the integrated arrangement of the upper crushing device and the lower crushing device, the use convenience of the crusher is improved, then materials discharged by the crusher are annularly distributed, the crushing efficiency is improved, meanwhile, the materials can be fully crushed, and the crushing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of construction waste treatment, and in particular to a waste treatment device for civil engineering construction. Background Art

[0002] In the process of civil engineering construction, a lot of construction waste will be generated, including slag, waste concrete, waste bricks and other wastes. In order to promote environmental protection and conservation, these wastes can generally be recycled and reused. When processing, the concrete blocks are generally in large blocks, so they need to be crushed first and then recycled. Commonly used crushers are jaw crushers and impact crushers. The jaw crusher is for preliminary crushing, that is, the concrete blocks are first broken into smaller blocks, and then further crushed by the impact crusher. However, there are certain deficiencies in the whole process and equipment use:

[0003] First of all, two devices, jaw crusher and impact crusher, are needed. At the same time, if efficiency is to be guaranteed, a continuous feeding device is required between the two crushers, which makes the overall crushing process complicated and the structural equipment large and numerous. Secondly, jaw crusher and impact crusher only crush materials falling from the top, but their crushing parts are basically for materials falling in a line, and the setting of these two crushers happens to be a rectangular discharge port on the top, which also leads to low crushing efficiency. At the same time, sometimes they cannot be crushed completely during crushing, which will cause many large concrete blocks. When they are used later, workers need to knock them manually, which not only has poor crushing effect but also increases the workload for subsequent recycling. Summary of the invention

[0004] The present application proposes a waste treatment device for civil engineering construction, which has the advantages of integration, good crushing effect and high efficiency, and is used to solve the problems raised by the background technology.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a waste treatment device for civil engineering construction, comprising a casing, a frame head is installed at the top feed port of the casing through a support frame, and the frame head is located just above the center of the casing, a fixed block is fixedly installed at the bottom of the frame head, a hydraulic cylinder is arranged inside the fixed block, a telescopic shaft is movably arranged at the output end of the hydraulic cylinder, a movable cone is fixedly connected to the bottom of the telescopic shaft, a fixed cone is fixedly sleeved on the inner wall of the casing at the outer ring position of the movable cone, a fixed ring is fixedly installed at the middle position of the inner wall of the casing, and the fixed ring A feeding port is evenly provided at the middle circle position; a support block is fixedly installed on the inner circle of the fixed ring, a limiting shaft is fixedly provided in the middle of the top surface of the support block, and the bottom of the movable cone is slidably sleeved on the limiting shaft, a driving motor is provided inside the support block, the output end of the driving motor is located below the support block, and the output shaft of the driving motor is fixedly connected to a rotating shaft, a hammer plate is evenly provided on the outer circle of the rotating shaft, an impact sleeve is fixedly installed on the inner wall of the casing at the outer circle position of the rotating shaft, impact blocks are evenly provided on the inner circle of the impact sleeve, and an annular filter plate is fixedly installed on the inner wall of the bottom end of the casing.

[0006] Preferably, the movable cone is in the shape of a cone as a whole, and the inner ring of the fixed cone cooperates with the movable cone to form a conical groove ring. The inclination of the outer ring bevel of the movable cone is greater than the inclination of the inner ring bevel of the fixed cone. A limiting sleeve hole is provided at the bottom of the movable cone, and the limiting shaft is just located inside the limiting sleeve hole. A spring damper is sleeved on the top of the limiting shaft, and the top surface of the spring damper is connected to the top wall of the limiting sleeve hole. A bellows is provided between the bottom surface of the hydraulic cylinder and the top surface of the movable cone, and the bellows is located at the outer ring of the telescopic shaft. Lubricating oil is coated between the telescopic shaft and the inner wall of the hydraulic cylinder.

[0007] Through the above structural setting, the crushing process can be carried out through the upper and lower parts, and the effects of a jaw crusher and an impact crusher can be played simultaneously inside one device, saving the space occupied by the equipment and the intermediate transportation structure, and improving the convenience in construction projects.

[0008] Preferably, the top of the rotating shaft is fixedly connected to a limiting ring, the bottom of the supporting block is provided with a limiting rotation groove, and the top of the limiting ring is rotatably sleeved in the limiting rotation groove, the bottom outer ring of the rotating shaft is fixedly sleeved with an annular bottom plate, the bottom outer ring of the annular bottom plate is provided with a supporting ring, and the outer ring of the supporting ring is fixedly connected to the inner wall of the casing through a supporting connecting rod.

[0009] Preferably, a lifting hole is provided in the middle of the bottom end of the rotating shaft, an annular cover is fixedly installed on the bottom surface of the rotating shaft at the opening of the lifting hole, a blanking port is provided at the top of the rotating shaft between adjacent hammer plates, and the blanking port is connected to the lifting hole, the hammer plates are above the top surface of the annular bottom plate, and the bottom opening of the blanking port corresponds to the top surface position of the hammer plate and the annular bottom plate.

[0010] Through the above arrangement, annular feeding is adopted in both crushing structures, which increases the crushing capacity and the crushing efficiency.

[0011] Preferably, the annular filter plate is concave as a whole, and a supporting block is fixedly installed in the middle of the annular filter plate, a screw is rotatably installed in the middle of the top surface of the supporting block, and the screw extends into the lifting hole, a forward and reverse motor is arranged inside the supporting block, and the output shaft end of the forward and reverse motor is fixedly connected to the screw, an annular cavity is opened inside the top end of the supporting block, and an eccentric block is fixedly sleeved on the outer ring of the output shaft of the forward and reverse motor.

[0012] Through the above arrangement, screening is performed after the two crushings, and the incompletely crushed concrete is lifted to the impact crushing part for crushing again, so that the concrete blocks are fully crushed and the crushing effect is improved.

[0013] The present application provides a waste treatment device for civil engineering construction. By arranging a movable cone and a fixed cone at the top of the casing and a rotating shaft at the bottom, compared with the prior art, two different crushing effects are achieved from top to bottom in the entire machine body, and the two crushing effects are the same as those of a jaw crusher and an impact crusher, thus reducing the amount of equipment and the intermediate conveying link, which is more conducive to the use of construction engineering;

[0014] The hydraulic cylinder drives the cone-shaped movable cone to perform preliminary crushing, which increases the unit crushing capacity compared with the existing technology, and the rotating shaft is also set vertically, so that the falling materials are just in one circle, which can increase the crushing capacity and improve the crushing efficiency;

[0015] By arranging an annular filter plate and a supporting block at the bottom of the casing, and the screw at the top of the supporting block extending into the lifting hole, compared with the existing technology, the forward and reverse motors are used to screen the crushed materials on the one hand, and on the other hand, the incompletely crushed materials are transported to the top of the rotating shaft through the screw for further crushing, thereby improving the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0017] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a side view of the overall structure of the present invention;

[0020] Figure 3 It is a longitudinal half-section view of the overall structure of the present invention;

[0021] Figure 4 for Figure 2 Middle AA section;

[0022] Figure 5 for Figure 2 Middle BB section;

[0023] Figure 6 It is a transverse half-section view of the overall structure of the present invention;

[0024] Figure 7 This is the overall installation matching diagram of the movable cone of the present invention;

[0025] Figure 8 This is an exploded view of the overall coordination of the movable cone of the present invention;

[0026] Fig. 9 This is a schematic diagram of the impact crushing structure of the present invention;

[0027] Fig.10 It is a schematic diagram of the screw matching structure of the present invention.

[0028] Among them: 1. Casing; 2. Frame head; 3. Fixed block; 4. Hydraulic cylinder; 5. Telescopic shaft; 6. Movable cone; 601. Limit sleeve hole; 7. Fixed cone; 8. Fixed ring; 801. Feeding port; 9. Support block; 901. Limit rotating groove; 10. Limit shaft; 11. Rotating shaft; 1101. Limit ring; 1102. Lifting hole; 1103. Feeding port; 12. Hammer plate; 13. Impact sleeve; 1301. Impact block; 14. Driving motor; 15. Support ring; 16. Spring damping; 17. Bellows; 18. Annular filter plate; 19. Bearing block; 1901. Annular cavity; 20. Annular bottom plate; 21. Screw; 22. Forward and reverse motor; 23. Annular cover; 24. Eccentric block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] See also Figure 1-Figure 9A waste treatment device for civil engineering construction includes a housing 1, the top opening of the housing 1 is a feed port, the bottom opening is a discharge port, a head 2 is installed at the top feed port of the housing 1 through a support frame, and the head 2 is located just above the center of the housing 1, a fixed block 3 is fixedly installed at the bottom of the head 2, a hydraulic cylinder 4 is arranged inside the fixed block 3, a telescopic shaft 5 is movably arranged at the output end of the hydraulic cylinder 4, a movable cone 6 is fixedly connected to the bottom of the telescopic shaft 5, and the telescopic shaft 5 is driven by hydraulic pressure to extend and retract, thereby driving the movable cone 6 The movable cone 6 and the fixed cone 7 move up and down to change the gap between the movable cone 6 and the fixed cone 7 to crush the concrete material, thereby performing preliminary crushing. This part is the jaw crusher. The inner wall of the casing 1 is located at the outer ring position of the movable cone 6 and is fixedly sleeved with a fixed cone 7. A fixed ring 8 is fixedly installed at the middle position of the inner wall of the casing 1. A discharge port 801 is evenly opened at the middle ring position of the fixed ring 8. The middle ring position at the top of the fixed ring 8 is concave, so that the material can be concentrated in the middle and then fall to the bottom through the discharge port 801. A crushing section, the inner ring of the fixed ring 8 is fixedly installed with a support block 9, the middle of the top surface of the support block 9 is fixedly provided with a limit shaft 10, and the bottom of the movable cone 6 is slidably sleeved on the limit shaft 10, and a groove is provided on the outer ring of the limit shaft 10, so as to avoid the influence of air pressure when the movable cone 6 slides on its top, and a drive motor 14 is provided inside the support block 9, the output end of the drive motor 14 is located below the support block 9, and the output shaft of the drive motor 14 is fixedly connected with a rotating shaft 11, and the outer ring of the rotating shaft 11 is evenly provided with hammer plates 12 , the shaft 11 is driven to rotate by the driving motor 14, and then the hammer plate 12 is used to crush the material for further crushing. This part is the impact crusher. The inner wall of the casing 1 is located at the outer ring position of the shaft 11 and an impact sleeve 13 is fixedly installed. The inner ring of the impact sleeve 13 is evenly provided with impact blocks 1301. The impact blocks 1301 can also be set to different sizes or distributions as needed to ensure that the required effect can be achieved during actual crushing. An annular filter plate 18 is fixedly installed on the inner wall of the bottom end of the casing 1.

[0031] Among them, a bellows 17 is arranged between the bottom surface of the hydraulic cylinder 4 and the top surface of the movable cone 6, and the bellows 17 is located at the outer ring of the telescopic shaft 5. The bellows 17 plays a role in protecting the telescopic shaft 5, and it needs to be made of wear-resistant material to increase its service life inside the crusher. Lubricating oil is applied between the inner wall of the telescopic shaft 5 and the hydraulic cylinder 4 to avoid large friction between the telescopic shaft 5 and the hydraulic cylinder 4.

[0032] In this equipment, the movable cone 6 and the fixed cone 7 cooperate with each other to achieve preliminary crushing. The movable cone 6 is in the shape of a cone as a whole, and the inner ring of the fixed cone 7 cooperates with the movable cone 6 to form a conical groove ring. The inclination of the outer ring inclined surface of the movable cone 6 is greater than the inclination of the inner ring inclined surface of the fixed cone 7. In this way, the gap between the movable cone 6 and the fixed cone 7 is reduced in the process of the movable cone 6 moving up and down. However, due to the different inclinations of the inclined surfaces, the gap at the bottom of the movable cone 6 and the fixed cone 7 is smaller than that at the top. In this way, the effect of jaw crushing is achieved, and it can achieve simultaneous crushing in a circle. Therefore, as long as the material falls from the top, it can be preliminarily crushed. In order to ensure the stability of the movable cone 6 when it slides up and down, a limiting sleeve hole 601 is opened at the bottom of the movable cone 6, and the limiting shaft 10 is just located inside the limiting sleeve hole 601. The top of the limiting shaft 10 is sleeved with a spring damper 16, and the top surface of the spring damper 16 is connected to the top wall of the limiting sleeve hole 601. The limiting shaft 10 is utilized to play a limiting guiding role to avoid the shaking of the movable cone 6. At the same time, the spring damper 16 can play a buffering role to reduce the influence of the movable cone 6 on the support block 9 when it moves up and down for crushing.

[0033] See also Figure 3-Figure 9 The top of the rotating shaft 11 is fixedly connected with a limiting ring 1101, and a limiting rotation groove 901 is provided at the bottom of the supporting block 9, and the top of the limiting ring 1101 is rotatably sleeved in the limiting rotation groove 901, and the limiting ring 1101 is limitedly sleeved and rotated in the limiting rotation groove 901, so as to ensure the stability of the rotating shaft 11 and prevent the rotating shaft 11 from shaking due to crushing and collision during operation. The bottom outer ring of the rotating shaft 11 is fixedly sleeved with an annular bottom plate 20, and the bottom outer ring of the annular bottom plate 20 is provided with a supporting ring 15. The outer ring of the supporting ring 15 is fixedly connected to the inner wall of the casing 1 through a supporting connecting rod, and the supporting ring 15 is arranged at the bottom position of the rotating shaft 11, so as to cooperate with the limiting ring 1101 to stabilize the rotating shaft 11, and the outer ring of the supporting ring 15 is provided with a plurality of supporting connecting rods made of high carbon steel to ensure the stability and strength of the supporting ring 15.

[0034] Among them, the hammer plate 12 is located above the top surface of the annular bottom plate 20, and the bottom opening of the discharge port 801 corresponds to the top surface position of the hammer plate 12 and the annular bottom plate 20, so that the material falling from the discharge port 801 just falls on the position of the hammer plate 12, and the hammer plate 12 rotates rapidly driven by the rotating shaft 11, so the falling material will be hit by the hammer plate 12 and hit the impact block 1301 for crushing, and the material rebounded from the impact block 1301 will be hit again by the hammer plate 12 on the one hand, and will fall to the top of the annular bottom plate 20 on the other hand, and then will be centrifugally thrown out under the rotation of the rotating shaft 11 and will also hit the impact block 1301, thereby increasing the crushing effect.

[0035] See also Figure 3-Figure 10 A lifting hole 1102 is provided in the middle of the bottom end of the rotating shaft 11, and an annular cover 23 is fixedly installed on the bottom surface of the rotating shaft 11 at the opening of the lifting hole 1102. The annular cover 23 cooperates with the screw 21 to realize material lifting to avoid the inability to achieve the lifting effect due to the large distance between the bottom of the rotating shaft 11 and the top surface of the bearing block 19. A drop opening 1103 is provided at the top of the rotating shaft 11 between the adjacent hammer plates 12, and the drop opening 1103 is connected with the lifting hole 1102. The lifting hole 1102 and the drop opening 1103 cooperate with the subsequent screw 21 to lift the incompletely crushed material again, and then crush it again, thereby improving the crushing effect and quality.

[0036] Among them, the annular filter plate 18 is concave as a whole, and a supporting block 19 is fixedly installed in the middle of the annular filter plate 18, so that the material falling on the annular filter plate 18 will be screened, and the material that does not meet the requirements will slide along the top of the annular filter plate 18 to the top of the supporting block 19, and a screw 21 is rotatably installed in the middle of the top surface of the supporting block 19, and the screw 21 extends into the lifting hole 1102, and a forward and reverse motor 22 is arranged inside the supporting block 19, and the output shaft end of the forward and reverse motor 22 is fixedly connected to the screw 21, and the screw 21 is driven to rotate by the forward and reverse motor 22, and the forward and reverse motor 22 can rotate forward and reverse, but its rotation speed will not exceed the rotation speed of the rotating shaft 11 regardless of forward or reverse rotation, so that the relative rotation speed between the screw 21 and the lifting hole 1102 can be controlled by the rotation of the forward and reverse motor 22, thereby realizing the lifting of the material inside the lifting hole 1102.

[0037] At the same time, an annular cavity 1901 is opened at the inner part of the top of the supporting block 19, and the outer ring of the output shaft of the forward and reverse motor 22 is fixedly sleeved with an eccentric block 24. The rotation of the output shaft of the forward and reverse motor 22 is used to drive the eccentric block 24 to rotate synchronously. Due to the structure of the eccentric block 24, it will generate vibration, so that the vibration is transmitted to the annular filter plate 18, which is more conducive to the screening of the broken materials. At the same time, the installation between the annular filter plate 18 and the casing 1 is shock-absorbing and buffered, and there is also a gap between the screw 21 and the inner wall of the lifting hole 1102, so the influence of the vibration on the rotating shaft 11 is also very small. In this way, it can minimize its influence on other components while achieving the vibration effect, thereby ensuring the stability of the overall equipment.

[0038] Working principle: When working, start the equipment first, then add the delivered concrete material into the casing 1, at this time, the hydraulic cylinder 4 drives the telescopic shaft 5 to telescope through the hydraulic pressure, and then drives the movable cone 6 to move up and down, and the material falling from the top to the preliminary crushing section will be clamped and crushed between the movable cone 6 and the fixed cone 7 for preliminary crushing, so that the concrete blocks become smaller blocks, and then fall onto the fixed ring 8, and fall into the second crushing section from the discharge port 801;

[0039] The materials entering the second crushing stage will fall to the position of the hammer plate 12, and the driving motor 14 is started during the process, which drives the rotating shaft 11 and the hammer plate 12 to rotate synchronously, so that the fallen concrete blocks are hit by the hammer plate 12 and hit the impact block 1301 of the impact sleeve 13 for further crushing. At this time, part of the crushed materials on the impact block 1301 will rebound to the position between the hammer plates 12, so that some will be hit out again by the hammer plates 12 for crushing, and some will fall on the top surface of the annular bottom plate 20, and then be thrown out with the rotation of the rotating shaft 11 and collide with the impact block 1301 again for crushing, and then the crushed materials will fall onto the annular filter plate 18;

[0040] The materials falling onto the annular filter plate 18 will be screened, and those meeting the crushing size will fall under the annular filter plate 18 and be collected and transported to the next process. In this process, the forward and reverse motors 22 drive the eccentric block 24 and the support ring 15 to rotate simultaneously. The eccentric block 24 generates vibration when rotating, so that the annular filter plate 18 can screen better. As the annular filter plate 18 screens, the concrete blocks that do not meet the crushing standards slide to the top of the supporting block 19. At this time, the rotation of the screw 21 and the rotating shaft 11 lifts them along the lifting hole 1102 to the drop port 1103, and then falls to the hammer plate 12 for crushing. In this way, the concrete blocks that do not meet the standards are repeatedly crushed during the entire crushing process, so that the crushing effect is better, and the material lifting speed of the screw 21 can be controlled according to the rotation speed of the support block 9, thereby avoiding the concentrated influence of the crushed materials on the effect. Overall, the entire crushing process is completed in an integrated manner from top to bottom with excellent crushing effect and quality.

Claims

1. A waste treatment device for civil engineering construction, characterized in that: The invention comprises a casing (1), a frame head (2) is installed at the top feed port of the casing (1) through a support frame, and the frame head (2) is located directly above the center of the casing (1), a fixed block (3) is fixedly installed at the bottom of the frame head (2), a hydraulic cylinder (4) is arranged inside the fixed block (3), a telescopic shaft (5) is movably arranged at the output end of the hydraulic cylinder (4), a movable cone (6) is fixedly connected to the bottom of the telescopic shaft (5), a fixed cone (7) is fixedly sleeved at the outer circle position of the movable cone (6) on the inner wall of the casing (1), a fixed ring (8) is fixedly installed at the middle position of the inner wall of the casing (1), and a feed opening (801) is evenly opened at the middle circle position of the fixed ring (8); A support block (9) is fixedly mounted on the inner ring of the fixed ring (8); a limit shaft (10) is fixedly arranged in the middle of the top surface of the support block (9); and the bottom of the movable cone (6) is slidably sleeved on the limit shaft (10); a drive motor (14) is arranged inside the support block (9); the output end of the drive motor (14) is located below the support block (9); and the output shaft of the drive motor (14) is fixedly connected to the rotating shaft (11); hammer plates (12) are evenly arranged on the outer ring of the rotating shaft (11); an impact sleeve (13) is fixedly mounted on the inner wall of the casing (1) at the position of the outer ring of the rotating shaft (11); and impact blocks (1301) are evenly arranged on the inner ring of the impact sleeve (13); and an annular filter plate (18) is fixedly mounted on the inner wall of the bottom end of the casing (1).

2. A civil engineering construction waste treatment device according to claim 1, characterized in that: The movable cone (6) is in the shape of a cone as a whole, and the inner ring of the fixed cone (7) cooperates with the movable cone (6) to form a conical groove ring. The inclination of the outer ring inclined surface of the movable cone (6) is greater than the inclination of the inner ring inclined surface of the fixed cone (7).

3. The device for treating waste for civil engineering construction according to claim 1, characterized in that: A limiting sleeve hole (601) is provided at the bottom of the movable cone (6), and the limiting shaft (10) is located exactly inside the limiting sleeve hole (601). A spring damper (16) is sleeved on the top of the limiting shaft (10), and the top surface of the spring damper (16) is connected to the top wall of the limiting sleeve hole (601).

4. A civil engineering construction waste treatment device according to claim 1, characterized in that: A bellows (17) is provided between the bottom surface of the hydraulic cylinder (4) and the top surface of the movable cone (6), and the bellows (17) is located at the outer ring of the telescopic shaft (5), and lubricating oil is applied between the telescopic shaft (5) and the inner wall of the hydraulic cylinder (4).

5. The device for treating waste for civil engineering construction according to claim 1, characterized in that: The top of the rotating shaft (11) is fixedly connected to a limit ring (1101), the bottom of the supporting block (9) is provided with a limit rotation groove (901), and the top of the limit ring (1101) is rotatably sleeved in the limit rotation groove (901), the bottom outer ring of the rotating shaft (11) is fixedly sleeved with an annular bottom plate (20), the bottom outer ring of the annular bottom plate (20) is provided with a supporting ring (15), and the outer ring of the supporting ring (15) is fixedly connected to the inner wall of the casing (1) through a supporting connecting rod.

6. A civil engineering construction waste treatment device according to claim 5, characterized in that: A lifting hole (1102) is provided in the middle of the bottom end of the rotating shaft (11); an annular cover (23) is fixedly installed on the bottom surface of the rotating shaft (11) at the opening of the lifting hole (1102); a blanking opening (1103) is provided at the top of the rotating shaft (11) between adjacent hammer plates (12); and the blanking opening (1103) is communicated with the lifting hole (1102).

7. The device for treating waste for civil engineering construction according to claim 5, characterized in that: The hammer plates (12) are all located above the top surface of the annular bottom plate (20), and the bottom opening of the discharge port (801) corresponds to the top surface positions of the hammer plates (12) and the annular bottom plate (20).

8. The device for treating waste for civil engineering construction according to claim 6, characterized in that: The annular filter plate (18) is concave in shape as a whole, a bearing block (19) is fixedly mounted in the middle of the annular filter plate (18), a screw rod (21) is rotatably mounted in the middle of the top surface of the bearing block (19), and the screw rod (21) extends into the lifting hole (1102), a forward and reverse motor (22) is arranged inside the bearing block (19), and the output shaft end of the forward and reverse motor (22) is fixedly connected to the screw rod (21).

9. A civil engineering construction waste treatment device according to claim 8, characterized in that: An annular cavity (1901) is provided inside the top end of the bearing block (19), and an eccentric block (24) is fixedly sleeved on the outer ring of the output shaft of the forward and reverse motor (22).

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