Civil engineering construction waste recovery treatment device

Abstract

The civil engineering construction waste recycling device comprises a screening mechanism, the bottom of the screening mechanism is rotationally connected with a discharging mechanism, one end of the screening mechanism is rotationally connected with a smashing mechanism, the smashing mechanism is fixedly installed on the front side of the discharging mechanism, and a driving mechanism is installed at the other end of the screening mechanism; and the driving mechanism is fixedly mounted on the left side of the discharging mechanism. The device has the advantage of high efficiency, and solves the problems that in the solid waste recovery process of an existing building waste recovery treatment device, efficient screening, cleaning and draining are inconvenient to conduct on crushed concrete materials, the treatment efficiency of the concrete materials is reduced, the quality and applicability of the materials in the subsequent utilization process are affected, and the service life of the materials is prolonged. And if primary screening and cleaning are not thorough enough, secondary treatment possibly needs to be carried out, and the subsequent treatment cost is increased.

Description

Technical Field

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

[0002] The civil engineering construction waste recycling and treatment device is a type of solid waste treatment device. It is a mechanical equipment or system specially used to treat waste materials generated during construction, demolition or construction. Waste materials include concrete, bricks, steel and wood. Its core goal is to convert construction waste into reusable resources through sorting, crushing, screening and recycling technology, reduce environmental pollution and improve resource utilization. In the process of recycling concrete, the concrete is first crushed into small particles, and then screened and washed to obtain uniform recycled aggregates. Recycled aggregates can replace natural sand and gravel and reduce resource exploitation.

[0003] A compression device for solid waste treatment with Chinese patent application number 202420680490.3 relates to a compression device for solid waste treatment, which includes a solid waste treatment box, a first hydraulic rod and a second hydraulic rod are installed on both sides of the solid waste treatment box, a drainage pipe is arranged on the right side of the bottom of the solid waste treatment box, a drawer is slidingly arranged on the front side of the solid waste treatment box, a feed port and a motor are arranged on the upper side of the solid waste treatment box, the output end of the motor rotates through the inside of the solid waste treatment box and a cutting stirring blade is fixedly installed on the output end of the motor, and a crushing cylinder is arranged on the outside of the cutting stirring blade. By breaking up the solid waste before the solid waste compaction work, reducing the shape of the solid waste, eliminating large gaps, and making the later compaction higher, in addition, during the compaction process, the moisture in the solid waste is compacted and precipitated, and discharged through the drainage filter hole, so that the compaction and drainage are carried out simultaneously, but during the use of the solid waste treatment device, it is difficult to screen and clean the crushed materials, which affects the subsequent recycling of the materials.

[0004] In the process of solid waste recycling, the existing construction waste recycling and processing equipment is not convenient for efficient screening, cleaning and draining of crushed concrete materials, which reduces the processing efficiency of concrete materials and affects the quality and applicability of materials in subsequent use. If the initial screening and cleaning are not thorough enough, secondary processing may be required, increasing the subsequent processing costs. Summary of the invention

[0005] The purpose of the present invention is to provide a civil engineering construction waste recycling and processing device, which has the advantage of high efficiency and solves the problem that the existing construction waste recycling and processing devices are not convenient for efficient screening, cleaning and draining of crushed concrete materials during the solid waste recycling process, thereby reducing the processing efficiency of concrete materials and affecting the quality and applicability of materials during subsequent use. If the initial screening and cleaning are not thorough enough, secondary processing may be required, which increases the subsequent processing cost.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for recycling and treating construction waste in civil engineering, comprising a screening mechanism,

[0007] The bottom of the screening mechanism is rotatably connected to a discharging mechanism, one end of the screening mechanism is rotatably connected to a crushing mechanism, the crushing mechanism is fixedly installed on the front side of the discharging mechanism, the other end of the screening mechanism is installed with a driving mechanism, and the driving mechanism is fixedly installed on the left side of the discharging mechanism.

[0008] As a preferred device for recycling and treating civil engineering construction waste of the present invention, a cleaning mechanism is fixedly installed at the rear side of the discharging mechanism, and when the concrete particles need to be cleaned, the cleaning mechanism moves to the inside of the screening mechanism to clean the concrete particles.

[0009] As a preferred civil engineering construction waste recycling and processing device of the present invention, when it is necessary to crush the concrete particles inside the screening mechanism, the cleaning mechanism moves to the outside of the screening mechanism, the rear end of the screening mechanism is threadedly connected with a closing cover, and the inner cavity of the screening mechanism is provided with a plurality of crushing balls, which rotate with the screening mechanism.

[0010] As a preferred civil engineering construction waste recycling and processing device of the present invention, the screening mechanism includes a rotating drum, a plurality of first arc-shaped orifice plates are fixedly connected to the surface of the rotating drum, a limiting ring is fixedly connected to one end of the rotating drum, and a driving bucket is fixedly connected to the other end of the rotating drum.

[0011] As a preferred civil engineering construction waste recycling and processing device of the present invention, the inner wall of the limit ring is fixedly connected to a feed ring, the inner wall of the driving bucket is fixedly connected to a baffle ring, and the tops of the feed ring and the baffle ring are both provided with arc surfaces.

[0012] As a preferred civil engineering construction waste recycling and processing device of the present invention, the discharging mechanism includes a semicircular discharging hopper arranged obliquely, a drainage mesh plate is fixedly connected to the bottom of the semicircular discharging hopper, front and rear sides of the semicircular discharging hopper are fixedly connected to a support frame, the bottom of the support frame is fixedly connected to a base, and the top of the semicircular discharging hopper and the support frame are rotatably connected to the surface of the rotating drum.

[0013] As a preferred civil engineering construction waste recycling and processing device of the present invention, the driving mechanism includes a reduction motor, a driving pulley is fixedly installed on the output shaft of the reduction motor, a driven pulley is provided on one side of the driving pulley, the driven pulley is fixedly sleeved on the surface of the driving bucket, and the driven pulley and the driving pulley surface are connected by a belt for transmission.

[0014] As a preferred civil engineering construction waste recycling and processing device of the present invention, the pulverizing mechanism includes a pulverizing box, the bottom of the pulverizing box is connected to a bend pipe, and the discharge end of the bend pipe is connected to a feed hopper.

[0015] As a preferred civil engineering construction waste recycling and processing device of the present invention, the feed hopper is installed inside a limiting ring, the surface of the feed hopper is rotatably connected to the inner wall of the limiting ring, and the inner wall of the feed hopper is rotatably connected to the surface of the feed ring.

[0016] As a preferred civil engineering construction waste recycling and processing device of the present invention, the surface of the feed hopper is fixedly sleeved with a connecting seat, the bottom of the connecting seat is fixedly connected to an L-shaped frame, the L-shaped frame is fixedly connected to the crushing box, the bottom of the L-shaped frame is fixedly connected to a fixed seat, and the fixed seat is fixedly connected to the base.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention crushes large pieces of concrete waste into small particles through a crushing mechanism to obtain uniform recycled aggregates. These recycled aggregates can replace natural sand and gravel, reduce the exploitation of natural resources, and achieve effective utilization of wastes. The screening mechanism is designed with a first arc-shaped orifice plate and a second arc-shaped orifice plate, which can adjust the size of the screening holes as needed to meet the screening needs of materials of different sizes, thereby improving the flexibility and efficiency of the screening process. In addition, the rotation of the drum enables the concrete particles to roll during the screening process, further improving the screening efficiency.

[0019] 2. The present invention provides spiral blades and rotating rods in the curved pipe to assist in material discharge, thereby effectively preventing blockage during the material discharge process and ensuring smooth operation of the equipment. The cleaning mechanism can clean the crushed concrete particles when needed, and adopts a combination of fixed nozzles and movable nozzles to achieve double cleaning, improve the cleaning effect, and ensure the quality of recycled aggregates. The entire device integrates multiple functional modules such as crushing, screening, cleaning and discharging, with a compact structure and easy operation, which not only saves space but also improves work efficiency. When it is necessary to perform secondary crushing on larger concrete particles inside the screening mechanism, it can be achieved by simply replacing the closing cover and placing the crushing balls, thereby simplifying the maintenance process and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 It is a schematic diagram of the cleaning state of the present invention;

[0023] Figure 4 This is a schematic diagram of the crushing state of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the screening mechanism of the present invention;

[0025] Figure 6 It is a cross-sectional view of the screening mechanism of the present invention;

[0026] Figure 7 For the present invention Figure 5 A magnified view of middle;

[0027] Figure 8 The structure of the discharging mechanism of the present invention is shown in FIG. Figure 1 ;

[0028] Fig. 9 The structure of the discharging mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Fig.10 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0030] Fig.11 This is a schematic diagram of the structure of the crushing mechanism of the present invention;

[0031] Fig.12 It is a cross-sectional view of the crushing mechanism of the present invention;

[0032] Fig.13 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0033] In the figure: 100, screening mechanism; 101, drum; 102, limiting ring; 103, second arc-shaped orifice plate; 104, driving bucket; 105, feeding ring; 106, first arc-shaped orifice plate; 107, blocking ring; 108, fixing bolt; 109, adjusting sleeve; 110, rod body; 111, threaded hole; 200, discharging mechanism; 201, semicircular discharging hopper; 202, drain mesh plate; 203, supporting frame; 204, sewage frame; 205, base; 206, sewage pipe; 207, discharging plate; 300, driving mechanism; 301, reduction motor; 302, driving pulley; 303, belt; 304, driven pulley; 305, supporting seat; 306, fixing plate; 400, crushing mechanism; 40 1. Crushing box; 402. Bend pipe; 403. L-shaped frame; 404. Connecting seat; 405. Fixed seat; 406. Feed hopper; 407. First motor; 408. Transmission gear; 409. Crushing teeth; 410. First crushing roller; 411. Second crushing roller; 412. Spiral blade; 413. Rotating rod; 414. Large gear; 415. Second motor; 416. Small gear; 500. Cleaning mechanism; 501. Sliding seat; 502. Slide rail; 503. Limiting column; 504. Connecting rod; 505. Movable nozzle; 506. Hose; 507. Electric telescopic rod; 508. Fixed nozzle; 509. Water pipe; 510. Plate; 511. Solenoid valve; 600. Closing cover; 700. Crushing ball. DETAILED DESCRIPTION

[0034] See also Figure 1-Figure 13 A civil engineering construction waste recycling and processing device includes a screening mechanism 100, the bottom of the screening mechanism 100 is rotatably connected to a discharging mechanism 200, one end of the screening mechanism 100 is rotatably connected to a crushing mechanism 400, the crushing mechanism 400 is fixedly installed on the front side of the discharging mechanism 200, and the other end of the screening mechanism 100 is installed with a driving mechanism 300, and the driving mechanism 300 is fixedly installed on the left side of the discharging mechanism 200.

[0035] Furthermore, a cleaning mechanism 500 is fixedly installed on the rear side of the discharging mechanism 200. When the concrete particles need to be cleaned, the cleaning mechanism 500 moves to the inside of the screening mechanism 100 to clean the concrete particles.

[0036] When the concrete particles inside the screening mechanism 100 need to be crushed, the cleaning mechanism 500 moves to the outside of the screening mechanism 100, a closing cover 600 is threadedly connected to the rear end of the screening mechanism 100, and a plurality of crushing balls 700 are provided in the inner cavity of the screening mechanism 100, which rotate with the screening mechanism 100.

[0037] Furthermore, the screening mechanism 100 includes a rotating drum 101 , a plurality of first arc-shaped orifice plates 106 are fixedly connected to the surface of the rotating drum 101 , a limiting ring 102 is fixedly connected to one end of the rotating drum 101 , and a driving bucket 104 is fixedly connected to the other end of the rotating drum 101 .

[0038] Furthermore, a feed ring 105 is fixedly connected to the inner wall of the limiting ring 102 , and a baffle ring 107 is fixedly connected to the inner wall of the driving bucket 104 . The tops of the feed ring 105 and the baffle ring 107 are both provided with arc surfaces.

[0039] Furthermore, the surface of the first arc-shaped orifice plate 106 is movably connected to the second arc-shaped orifice plate 103, the surface of the second arc-shaped orifice plate 103 is fixedly connected to an adjusting sleeve 109, the adjusting sleeve 109 is movably connected to the surface of the rotating drum 101, the inside of the adjusting sleeve 109 is movably connected to a rod body 110, the front and rear ends of the rod body 110 are fixedly connected to the surface of the rotating drum 101, a plurality of threaded holes 111 are provided on the surface of the rod body 110, a fixing bolt 108 is installed on the adjusting sleeve 109, the fixing bolt 108 passes through the adjusting sleeve 109 and is threadedly connected to the threaded hole 111.

[0040] Furthermore, the discharging mechanism 200 includes an inclined semicircular discharging hopper 201, a drainage mesh plate 202 is fixedly connected to the bottom of the semicircular discharging hopper 201, support frames 203 are fixedly connected to the front and rear sides of the semicircular discharging hopper 201, a base 205 is fixedly connected to the bottom of the support frame 203, and the top of the semicircular discharging hopper 201 and the support frame 203 are rotatably connected to the surface of the rotating drum 101.

[0041] Furthermore, a discharge plate 207 is fixedly connected to the rear side of the semicircular discharge hopper 201, and the discharge plate 207 extends to the outside of the support frame 203. A sewage frame 204 is fixedly connected to the top of the base 205. The sewage frame 204 is located at the bottom of the drain mesh plate 202, and a sewage pipe 206 is connected to the surface of the sewage frame 204.

[0042] Furthermore, the driving mechanism 300 includes a reduction motor 301, the output shaft of which is fixedly mounted with a driving pulley 302, one side of the driving pulley 302 is provided with a driven pulley 304, the driven pulley 304 is fixedly sleeved on the surface of the driving bucket 104, and a belt 303 is connected to the surface of the driven pulley 304 and the driving pulley 302 for transmission.

[0043] A support base 305 is fixedly connected to the bottom of the reduction motor 301 , the driving pulley 302 is rotatably connected to the inner wall of the support base 305 , a fixing plate 306 is fixedly connected to the bottom of the support base 305 , and the fixing plate 306 is fixedly connected to the left side of the base 205 .

[0044] Furthermore, the pulverizing mechanism 400 includes a pulverizing box 401 , the bottom of the pulverizing box 401 is connected to a curved pipe 402 , and the discharge end of the curved pipe 402 is connected to a feed hopper 406 .

[0045] Furthermore, the feed hopper 406 is installed inside the limiting ring 102 , the surface of the feed hopper 406 is rotatably connected to the inner wall of the limiting ring 102 , and the inner wall of the feed hopper 406 is rotatably connected to the surface of the feed ring 105 .

[0046] Furthermore, a connecting seat 404 is fixedly sleeved on the surface of the feed hopper 406 , an L-shaped frame 403 is fixedly connected to the bottom of the connecting seat 404 , the L-shaped frame 403 is fixedly connected to the crushing box 401 , a fixing seat 405 is fixedly connected to the bottom of the L-shaped frame 403 , and the fixing seat 405 is fixedly connected to the base 205 .

[0047] Furthermore, the inner cavity of the curved tube 402 is rotatably connected to a rotating rod 413, and a spiral blade 412 is installed on the surface of the rotating rod 413. The spiral blade 412 is located at the top of the inner cavity of the curved tube 402. The bottom of the rotating rod 413 is rotatably connected to the top of the connecting seat 404. A large gear 414 is fixedly sleeved on the surface of the rotating rod 413. The bottom of the connecting seat 404 is fixedly connected to a second motor 415. A small gear 416 is fixedly installed on the output shaft of the second motor 415, and the small gear 416 is meshed with the surface of the large gear 414.

[0048] Furthermore, the inner cavity of the crushing box 401 is rotatably connected to the first crushing roller 410 and the second crushing roller 411 that are meshed with each other, the inner wall of the crushing box 401 is provided with crushing teeth 409 that are meshed with the first crushing roller 410 and the second crushing roller 411, the rear ends of the first crushing roller 410 and the second crushing roller 411 are provided with transmission gears 408 that are meshed with each other, and the first motor 407 is fixedly installed on the rear side of the crushing box 401, and the output shaft of the first motor 407 is fixedly connected to one end of the first crushing roller 410.

[0049] Furthermore, the cleaning mechanism 500 includes a sliding seat 501, to which a water pipe 509 is fixedly connected, the sliding seat 501 is fixedly connected to the bottom of the sliding seat 501, a slide rail 502 is slidably connected to the bottom of the sliding seat 501, a limiting column 503 is fixedly connected to the front side of the sliding seat 501, one end of the water pipe 509 is connected to a solenoid valve 511, the other end of the water pipe 509 is connected to a hose 506, one end of the hose 506 is connected to a movable nozzle 505, the movable nozzle 505 is rotatably connected to a connecting rod 504 on the left and right sides, one end of the connecting rod 504 is rotatably connected to an electric telescopic rod 507, the electric telescopic rod 507 is rotatably connected to the surface of the water pipe 509, and the bottom of the water pipe 509 is connected to a plurality of fixed nozzles 508.

[0050] When recycling large pieces of concrete waste using a recycling plant, the following steps are involved:

[0051] S1. First, the crushing mechanism 400 is used to crush the concrete waste, and the concrete is crushed into small particles, so as to obtain uniform recycled aggregate. The recycled aggregate can replace natural sand and gravel, reduce the exploitation of resources, and thus convert solid waste into useful things.

[0052] S2. During the operation of the crushing mechanism 400, the crushing box 401 is first used to crush the concrete waste. The output shaft of the first motor 407 drives the first crushing roller 410 to rotate, and the transmission gear 408 drives the first crushing roller 410 and the second crushing roller 411 to rotate synchronously. Under the joint action of the crushing blades on the surface of the first crushing roller 410 and the crushing teeth 409 and the crushing teeth 409, the concrete waste is crushed into concrete particle aggregates. The crushed concrete particles enter the interior of the curved pipe 402 and enter the feed hopper 406 through the curved pipe 402.

[0053] S3. When the concrete particles are inside the curved pipe 402, the spiral blades 412 and the rotating rod 413 assist in unloading to prevent blockage during unloading. The second motor 415 drives the rotating rod 413 to rotate through the engagement of the small gear 416 and the large gear 414. The rotating rod 413 drives the spiral blades 412 to rotate in the inner cavity of the curved pipe 402, and drives the concrete particles to move downward, and finally enter the feed hopper 406 through the bend of the curved pipe 402.

[0054] S4. Concrete particles enter the screening mechanism 100 through the feed hopper 406. The driving mechanism 300 drives the screening mechanism 100 to rotate to screen concrete particles of different sizes. Concrete particles that pass the screening enter the discharging mechanism 200 for drainage and discharging.

[0055] S5. During the operation of the driving mechanism 300, the reduction motor 301 drives the driving bucket 104 to rotate through the transmission of the active pulley 302, the belt 303 and the driven pulley 304. The driving bucket 104 drives the rotating drum 101 and the limiting ring 102 to rotate synchronously. The rotating drum 101 rotates on the top of the semicircular discharge hopper 201 and the support frame 203. The semicircular discharge hopper 201 and the support frame 203 support the rotating drum 101. The driving bucket 104 and the limiting ring 102 rotate on the outside of the support frame 203 to prevent the rotating drum 101 from moving forward and backward. During the rotation of the limiting ring 102, the rotating drum 101 rotates on the surface of the feed hopper 406, and the feed ring 105 rotates on the inner wall of the feed hopper 406. The feed hopper 406 is now continuously feeding, and the concrete particles discharged from the feed hopper 406 fall into the top of the feed ring 105, and enter the inner cavity of the drum 101 through the arc surface at the top of the feed ring 105. The feed ring 105 prevents the concrete particles from being stuck on the inner wall of the limit ring 102, and the baffle ring 107 prevents the concrete particles from spilling out through the driving bucket 104. After the concrete particles enter the inside of the drum 101, they are accumulated at the bottom of the inner cavity of the drum 101, and fall from the bottom through the screening holes on the surfaces of the first arc-shaped orifice plate 106 and the second arc-shaped orifice plate 103. The fallen concrete particles enter the discharging mechanism 200, and along with the rotation of the drum 101, the concrete particles can roll, thereby improving the screening efficiency.

[0056] S6. When the size of the screening hole needs to be adjusted, the second arc-shaped orifice plate 103 is moved on the surface of the first arc-shaped orifice plate 106 to change the overlapping area of ​​the screening holes. During the adjustment process, the adjusting sleeve 109 slides on the surface of the rod body 110. After the adjustment is completed, the fixing bolt 108 is passed through the adjusting sleeve 109 and screwed into the threaded hole 111 to fix the adjusting sleeve 109 and the second arc-shaped orifice plate 103.

[0057] S7. When it is necessary to clean the crushed concrete particles, the plate 510 is moved on the surface of the slide rail 502, and the water pipe 509 is inserted into the screening mechanism 100. When it moves to the limit position, the limit column 503 contacts the base 205 to prevent the plate 510 from moving further. The solenoid valve 511 is connected to the water pump, and the water pump is connected to the water source, so that the cleaning water enters the water pipe 509. The cleaning water in the water pipe 509 is sprayed out through the fixed nozzle 508 and the movable nozzle 505. After the movable nozzle 505 enters the interior of the screening mechanism 100, the piston rod of the electric telescopic rod 507 drives the connecting rod 504 to rotate. The movable nozzle 505 is moved, and the connecting rod 504 drives the movable nozzle 505 to rotate downward, and the movable nozzle 505 drives the hose 506 to bend downward, so that the movable nozzle 505 is set to be inclined to wash the concrete particles discharged from the feed hopper 406. The feeding end of the feed hopper 406 is located at the bottom of the front side of the feed hopper 406, so that the concrete particles can be discharged from the bottom, and the fixed nozzle 508 washes the concrete particles accumulated at the bottom of the inner cavity of the rotating drum 101, thereby achieving double cleaning and improving the cleaning effect. When cleaning is not needed, the movable nozzle 505 is reset and the cleaning mechanism 500 is taken out from the inside of the screening mechanism 100.

[0058] S8. The concrete particles collected by the discharge mechanism 200 enter the inner cavity of the semicircular discharge hopper 201 and fall on the top of the drain mesh 202. The drain mesh 202 drains the concrete particles with water stains on the surface. The drained concrete particles roll down on the top of the drain mesh 202 and are discharged through the discharge plate 207. The sewage passes through the drain mesh 202 into the sewage frame 204 and enters the sewage treatment equipment through the sewage pipe 206.

[0059] S9. When larger concrete particles are accumulated inside the screening mechanism 100, the cleaning mechanism 500 is taken out from the screening mechanism 100, the crushing balls 700 are placed into the inner cavity of the rotating drum 101, and the closing cover 600 is sealed in the driving bucket 104. As the screening mechanism 100 rotates, the crushing balls 700 perform secondary crushing on the concrete particles, so that the concrete particles can be screened by the first arc-shaped orifice plate 106 and the second arc-shaped orifice plate 103.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for recycling and treating construction waste in civil engineering, comprising a screening mechanism (100), characterized in that: The bottom of the screening mechanism (100) is rotatably connected to a discharging mechanism (200); one end of the screening mechanism (100) is rotatably connected to a crushing mechanism (400); the crushing mechanism (400) is fixedly installed on the front side of the discharging mechanism (200); the other end of the screening mechanism (100) is installed with a driving mechanism (300); the driving mechanism (300) is fixedly installed on the left side of the discharging mechanism (200).

2. The device for recycling and treating civil engineering construction waste according to claim 1, characterized in that: A cleaning mechanism (500) is fixedly installed on the rear side of the discharging mechanism (200). When the concrete particles need to be cleaned, the cleaning mechanism (500) moves to the inside of the screening mechanism (100) to clean the concrete particles.

3. The device for recycling and treating civil engineering construction waste according to claim 2, characterized in that: When it is necessary to crush the concrete particles inside the screening mechanism (100), the cleaning mechanism (500) moves to the outside of the screening mechanism (100), a closing cover (600) is threadedly connected to the rear end of the screening mechanism (100), and a plurality of crushing balls (700) are arranged in the inner cavity of the screening mechanism (100), and the crushing balls (700) rotate with the screening mechanism (100).

4. The device for recycling and treating civil engineering construction waste according to claim 1, characterized in that: The screening mechanism (100) comprises a rotating drum (101), a plurality of first arc-shaped orifice plates (106) are fixedly connected to the surface of the rotating drum (101), one end of the rotating drum (101) is fixedly connected to a limiting ring (102), and the other end of the rotating drum (101) is fixedly connected to a driving bucket (104).

5. The device for recycling and treating civil engineering construction waste according to claim 4, characterized in that: A feed ring (105) is fixedly connected to the inner wall of the limiting ring (102), and a stopper ring (107) is fixedly connected to the inner wall of the driving bucket (104). The tops of the feed ring (105) and the stopper ring (107) are both provided with arc surfaces.

6. The device for recycling and treating civil engineering construction waste according to claim 5, characterized in that: The discharging mechanism (200) comprises a semicircular discharging hopper (201) arranged obliquely, a draining mesh plate (202) being fixedly connected to the bottom of the semicircular discharging hopper (201), a support frame (203) being fixedly connected to both the front and rear sides of the semicircular discharging hopper (201), a base (205) being fixedly connected to the bottom of the support frame (203), and the tops of the semicircular discharging hopper (201) and the support frame (203) being rotatably connected to the surface of the rotating drum (101).

7. The device for recycling and treating civil engineering construction waste according to claim 6, characterized in that: The driving mechanism (300) comprises a reduction motor (301), the output shaft of the reduction motor (301) is fixedly mounted with a driving pulley (302), one side of the driving pulley (302) is provided with a driven pulley (304), the driven pulley (304) is fixedly sleeved on the surface of the driving bucket (104), and the driven pulley (304) and the driving pulley (302) are connected by a belt (303) in a transmission manner.

8. The device for recycling and treating civil engineering construction waste according to claim 7, characterized in that: The pulverizing mechanism (400) comprises a pulverizing box (401), the bottom of the pulverizing box (401) is connected to a curved pipe (402), and the discharge end of the curved pipe (402) is connected to a feed hopper (406).

9. The device for recycling and treating civil engineering construction waste according to claim 8, characterized in that: The feed hopper (406) is installed inside the limiting ring (102), the surface of the feed hopper (406) is rotatably connected to the inner wall of the limiting ring (102), and the inner wall of the feed hopper (406) is rotatably connected to the surface of the feed ring (105).

10. The device for recycling and treating civil engineering construction waste according to claim 9, characterized in that: A connecting seat (404) is fixedly sleeved on the surface of the feed hopper (406); an L-shaped frame (403) is fixedly connected to the bottom of the connecting seat (404); the L-shaped frame (403) is fixedly connected to the crushing box (401); a fixing seat (405) is fixedly connected to the bottom of the L-shaped frame (403); and the fixing seat (405) is fixedly connected to the base (205).

Images