Roadway slag and construction waste recycling device

Abstract

The application relates to the technical field of waste recycling, and discloses a road slag and construction waste recycling device, which comprises a bin body, a feeding port is arranged at the top of the bin body, a crushing mechanism for crushing the construction waste entering the feeding port is arranged in the bin body, an upper discharge port is arranged at one side of the top of the bin body, and a driving motor is arranged on the bin body. In the process that the driving motor works to drive the magnetic spiral sleeves on the two roller shafts to gradually push the waste to the guide port, small non-metallic waste falls through the screen mesh at the bottom of the receiving bin, and small metallic waste is pushed out to the guide port through the magnetic attraction of the magnetic spiral sleeve. Compared with the prior art, the inverted arc-shaped screen mesh at the bottom of the receiving bin cooperates with the spiral guide of the magnetic spiral sleeve, so that the metallic waste is prevented from directly falling off from between the two magnetic spiral sleeves together with the non-metallic waste, and the problem that the metallic waste is easily scattered from between the two spiral guide sleeves together with the non-metallic waste in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of waste recycling technology, specifically to a device for recycling road construction waste and building materials. Background Technology

[0002] Construction waste refers to the slag, sand, gravel, and building materials generated during the construction process. Slag waste often contains discarded metal scraps, which are sometimes tightly bound to concrete blocks, forming difficult-to-recycle waste. These metal scraps have significant reuse value, and failure to effectively recycle them leads to resource waste. Traditional construction waste recycling equipment crushes the waste, separates the metals, and then uses the non-metallic waste for road construction. However, traditional equipment struggles to effectively recover relatively small metal scraps, resulting in incomplete recycling.

[0003] To address this, CN114522759B discloses a construction waste recycling and reuse device. This device includes a fixed base, a pre-processing mechanism, and a metal recycling mechanism. A housing is fixedly connected to the fixed base, and the pre-processing mechanism is mounted on the housing. A partition is fixedly connected to the inner wall of the housing. The metal recycling mechanism includes two spiral guide sleeves, two magnetic sleeves, and a second rotating drive component. Two mounting shafts are rotatably connected to the side wall of the housing, and the second rotating drive component is mounted on the side wall of the housing. During operation, this construction waste recycling and reuse device can effectively recycle and reuse metal waste while simultaneously refining the construction waste.

[0004] However, the above-mentioned construction waste recycling and reuse device still has the following problems: the spiral guide sleeves on the two mounting shafts of the above-mentioned construction waste recycling and reuse device are suspended, and the screened metal waste mixed with non-metal waste is easy to fall directly from the two spiral guide sleeves under the action of gravity, resulting in unsatisfactory recycling effect of small pieces of metal waste. Summary of the Invention

[0005] This invention proposes a device for the reuse of road construction waste and building materials, which solves the problem in the prior art that metal waste mixed with non-metallic waste is prone to scattering between two spiral guide sleeves.

[0006] The technical solution of the present invention is as follows: A device for recycling road construction waste and building debris includes a silo body. The top of the silo body has an inlet. A crushing mechanism for crushing the building debris entering through the inlet is installed inside the silo body. An upper outlet is located on one side of the top of the silo body. Below the crushing mechanism is a screening mechanism for discharging large pieces of crushed waste through the upper outlet. Below the screening mechanism is a receiving silo fixed inside the silo body. The receiving silo contains a pair of spiral guiding mechanisms for spirally discharging small pieces of crushed and screened metal waste. Below the receiving silo is a device for collecting small pieces of non-metallic materials. The first collection area for metal scrap includes a drive motor fixedly installed outside the bin. A scraping mechanism, driven by the drive motor, rotates and scrapes away small pieces of metal scrap guided by two spiral guide mechanisms on the outside of the receiving bin. A second collection area is located on one side of the first collection area, with a lower discharge port on one side. A separating mechanism is installed inside the lower discharge port. A guide groove, which guides the small pieces of metal scrap scraped by the scraping mechanism to the separating mechanism, is fixed on the side wall of the second collection area. A transmission mechanism, driven synchronously by the drive motor, rotates the separating mechanism to further sort the small pieces of metal scrap.

[0007] Preferably, a spike is fixed at the bottom center of the receiving bin, and two spiral guiding mechanisms are respectively located on both sides of the spike. A screen is fixed on both sides of the spike below the spiral guiding mechanism. The screen is an inverted arch structure and coincides with the axial direction of the two spiral guiding mechanisms. A guide port is opened on the end face of the receiving bin, and the guide port is located at the bottom of the arch of the screen.

[0008] Preferably, the spiral guiding mechanism includes a roller shaft that passes through the receiving bin and is rotatably connected to it. A magnetic spiral sleeve is fixed to the outside of the part of the roller shaft located inside the receiving bin. One end of the roller shaft extends to the outside of the receiving bin and is fixed with a driven gear. Several scrapers arranged in a ring around the roller shaft are fixed to the side of the driven gear facing the receiving bin.

[0009] Preferably, the scraping mechanism includes a drive shaft, one end of which is fixed to the output end of a drive motor, and the other end of which passes through the bin body and is rotatably connected to the receiving bin. A drive gear that meshes with a driven gear is fixed on the drive shaft. A fixing ring sleeved on the side of the drive gear facing the receiving bin is fixed on the drive shaft. Two rotationally symmetrical swing arms are arranged on the circumferential surface of the fixing ring. The rotation path of the swing arms covers the guide port and passes through the scraper.

[0010] Preferably, the swing arm includes a metal inner arm, and a rigid plastic is fixedly sleeved on the outside of the metal inner arm. One end of the metal inner arm is fixedly connected to a fixing ring, and a soft rubber sleeve is fixedly sleeved on the other end of the metal inner arm. The soft rubber sleeve is arc-shaped and bent.

[0011] Preferably, the material distribution mechanism includes a roller, which is rotatably disposed in the lower discharge port. The roller is frustum-shaped and has several material holes perpendicular to the roller axis on its body. The small end of the roller extends into the second material collection area. A shaft is provided at the center of the roller. A first fixed bracket fixedly connected to the shaft is fixed inside the large end of the roller, and a second fixed bracket fixedly connected to the shaft is fixed inside the small end of the roller.

[0012] Preferably, the guide trough is inclinedly disposed below the receiving bin, and the guide trough gradually narrows from top to bottom into the small end of the roller.

[0013] Preferably, the transmission mechanism includes a drive sprocket, which is fixed outside the drive shaft. One end of the shaft is rotatably connected to the inner wall of the silo, and the other end of the shaft extends outside the silo and is fixed with a driven sprocket. The driven sprocket is connected to the drive sprocket via a chain.

[0014] The beneficial effects of this invention are as follows:

[0015] In this invention, the drive motor can rotate the drive shaft, which in turn drives the drive gear. The meshing of the drive gear and the driven gear drives the roller shaft to rotate, and then the magnetic spiral sleeves on the two roller shafts gradually push the waste material towards the feed port. During this process, small pieces of non-metallic waste fall through the screen at the bottom of the receiving bin and are collected by the first collection area, while small pieces of metallic waste are pushed out to the feed port by the magnetic attraction of the magnetic spiral sleeves. Compared with the prior art, this invention, through the inverted arched screen at the bottom of the receiving bin and the spiral guidance of the magnetic spiral sleeves, prevents metallic waste mixed with non-metallic waste from falling directly between the two magnetic spiral sleeves, thus solving the problem in the prior art that metallic waste mixed with non-metallic waste easily scatters between the two spiral guide sleeves.

[0016] In this invention, the rotation of the drive shaft can drive the fixed ring and the swing arm on the fixed ring to rotate. Since the rotation path of the swing arm covers the guide port and passes through the scraper, the soft rubber sleeve of the swing arm first scrapes off the small pieces of metal scrap at the guide port during the clockwise rotation. Then, when it rotates past the scraper, the rotating scraper can, on the one hand, use the inertial moment generated by the rotation to break up the scraped small pieces of metal scrap, and on the other hand, use the flexibility of the soft rubber sleeve to scrape off the metal scrap attached to the soft rubber sleeve. Compared with the prior art, this invention can ensure the safe removal of metal scrap.

[0017] In this invention, small pieces of metal scrap scraped from two guide ports are concentrated and guided into a drum via a guide trough. Simultaneously, a drive motor rotates the drive shaft, which in turn rotates the drive sprocket. The chain then drives the driven sprocket, which in turn rotates the shaft and the first and second fixed supports at both ends of the shaft, causing the drum to rotate continuously. Because the drum is frustum-shaped, the small pieces of metal scrap continuously move from the smaller end to the larger end. During this process, the scrap is further sorted by the material holes on the drum, causing smaller metal scrap particles to fall into the second collection area for collection, while larger metal scrap particles are discharged through the larger end of the drum to the lower outlet. Compared to existing technologies, this invention enables multi-level sorting of metal scrap. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of a device for recycling road construction waste and building materials proposed in this invention.

[0020] Figure 2 This is a front view schematic diagram of a road construction waste and building waste recycling device proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the receiving bin structure proposed in this invention;

[0022] Figure 4 This is a schematic diagram showing the distribution of the scraping mechanism and the spiral guiding mechanism proposed in this invention;

[0023] Figure 5 This is a schematic diagram of the spiral material guiding mechanism proposed in this invention;

[0024] Figure 6 This is a schematic diagram of the scraping mechanism structure proposed in this invention;

[0025] Figure 7 This is a schematic diagram of a partial cross-sectional structure of the swing arm proposed in this invention;

[0026] Figure 8 This is a schematic diagram of the material distribution mechanism and transmission mechanism proposed in this invention;

[0027] Figure 9 This is a schematic diagram of the material distribution mechanism and transmission mechanism proposed in this invention from another perspective;

[0028] In the diagram: 1. Bin body; 11. Feed inlet; 12. First collection area; 13. Second collection area; 14. Lower discharge outlet; 15. Upper discharge outlet; 2. Screening mechanism; 3. Receiving bin; 31. Spike; 32. Screen; 33. Guide port; 4. Spiral guide mechanism; 41. Roller; 42. Magnetic spiral sleeve; 43. Driven gear; 44. Scraper; 5. Drive motor; 6. Scraping mechanism; 61. Drive shaft; 62. Driven gear; 63. Fixed ring; 64. Swing arm; 641. Metal inner arm; 642. Hard plastic; 643. Soft rubber sleeve; 7. Distributing mechanism; 71. Roller; 72. Shaft; 73. First fixed bracket; 74. Material hole; 75. Second fixed bracket; 8. Transmission mechanism; 81. Drive sprocket; 82. Driven sprocket; 83. Chain; 9. Guide trough; 10. Crushing mechanism. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1 and Figure 2This invention provides a technical solution: a device for recycling road construction waste and building debris, comprising a silo body 1, with an inlet 11 at the top of the silo body 1. Inside the silo body 1 is a crushing mechanism 10 for crushing the building debris entering through the inlet 11. The crushing mechanism 10 includes a motor and two meshing toothed rollers. The inlet 11 is located between the two toothed rollers. The motor drives the toothed rollers to rotate, thus crushing the incoming road construction waste and building debris. An upper outlet 15 is located on one side of the top of the silo body 1. Below the crushing mechanism 10 is a screening mechanism 2 for discharging large pieces of crushed waste through the upper outlet 15. The screening mechanism 2 consists of a screen, a vibrating motor located at the bottom of the screen, and spring supports at the four corners of the bottom of the screen. The vibrating motor drives the screen to vibrate, discharging the large pieces of crushed waste through the upper outlet 15. Unlike the prior art, this invention has a screen below the screening mechanism 2. There is a receiving bin 3 fixed inside the bin body 1. Inside the receiving bin 3, there is a pair of spiral guiding mechanisms 4 that can spirally guide small pieces of metal waste after crushing and screening out of the receiving bin 3. Below the receiving bin 3, there is a first collection area 12 for collecting small pieces of non-metallic waste. A drive motor 5 is fixedly installed outside the bin body 1. On the outside of the receiving bin 3, there is a scraping mechanism 6 that, driven by the drive motor 5, rotates and scrapes away the small pieces of metal waste guided out by the two spiral guiding mechanisms 4. On one side of the first collection area 12, there is a second collection area 13. On one side of the second collection area 13, there is a lower discharge port 14. Inside the lower discharge port 14, there is a material distribution mechanism 7. On the side wall of the second collection area 13, there is a guide groove 9 that guides the small pieces of metal waste scraped by the scraping mechanism 6 to the material distribution mechanism 7. Outside the bin body 1, there is a transmission mechanism 8 that, driven synchronously by the drive motor 5, drives the material distribution mechanism 7 to rotate and further sort the small pieces of metal waste.

[0031] Please see Figure 3 , Figure 4 and Figure 5A spiked body 31 is fixed to the bottom center of the receiving bin 3. Two spiral guiding mechanisms 4 are located on both sides of the spiked body 31. Screens 32 are fixed on both sides of the spiked body 31 and located below the spiral guiding mechanisms 4. The screens 32 are inverted arched structures and coincide with the axial direction of the two spiral guiding mechanisms 4. A guide port 33 is opened on the end face of the receiving bin 3. The guide port 33 is located at the bottom of the arch of the screen 32. The spiral guiding mechanism 4 includes a roller 41. The roller 41 passes through the receiving bin 3 and is rotatably connected to the receiving bin 3. The roller 41 is located on the outer part of the part inside the receiving bin 3. A magnetic spiral sleeve 42 is fixed to the roller shaft 41. One end of the roller shaft 41 extends to the outside of the receiving bin 3 and is fixed with a driven gear 43. Several scraper blades 44 are fixed on the side of the driven gear 43 facing the receiving bin 3 and are arranged in a ring around the roller shaft 41. During the rotation of the roller shaft 41, the waste is gradually pushed towards the guide port 33 by the magnetic spiral sleeve 42 on the two roller shafts 41. Small pieces of non-metallic waste fall through the screen 32 at the bottom of the receiving bin 3 and are collected by the first collection area 12. Small pieces of metallic waste are pushed out to the guide port 33 by the magnetic attraction of the magnetic spiral sleeve 42.

[0032] Please see Figure 4 , Figure 6 and Figure 7 The scraping mechanism 6 includes a drive shaft 61, one end of which is fixed to the output end of the drive motor 5, and the other end of which passes through the bin 1 and is rotatably connected to the receiving bin 3. A drive gear 62 that meshes with the driven gear 43 is fixed on the drive shaft 61. A fixing ring 63 is fixed on the side of the drive gear 62 facing the receiving bin 3 and is sleeved on the drive shaft 61. Two rotationally symmetrical swing arms 64 are provided on the circumferential surface of the fixing ring 63. The swing arms 64 include a metal inner arm 641, and a rigid plastic 642 is fixedly sleeved on the outside of the metal inner arm 641. One end of the metal inner arm 641 is fixed to the fixing ring 63. A fixed connection is made, and a soft rubber sleeve 643 is fixedly sleeved at the other end of the metal inner arm 641. The soft rubber sleeve 643 is arc-shaped and bent. When the drive motor 5 works, it can drive the drive shaft 61 to rotate. The drive shaft 61 drives the drive gear 62 to rotate. Through the meshing of the drive gear 62 and the driven gear 43, the roller shaft 41 is driven to rotate. Then, through the magnetic spiral sleeves 42 on the two roller shafts 41, the waste material is gradually pushed towards the guide port 33. The rotation of the drive shaft 61 can drive the fixed ring 63 and the swing arm 64 on the fixed ring 63 to rotate. Since the rotation path of the swing arm 64 covers the guide port 33 and passes through the scraper 44, such as Figure 4 As shown, during the clockwise rotation of the soft rubber sleeve 643 of the swing arm 64, the small pieces of metal scrap at the guide port 33 are first scraped off. Then, when it rotates past the scraper 44, the rotating scraper 44 can, on the one hand, use the inertial moment generated by the rotation to break up the scraped small pieces of metal scrap, and on the other hand, use the flexibility of the soft rubber sleeve 643 to scrape off the metal scrap attached to the soft rubber sleeve 643.

[0033] Please see Figure 2 , Figure 8 and Figure 9 The material distribution mechanism 7 includes a roller 71, which is rotatably disposed in the lower discharge port 14. The roller 71 is frustum-shaped and has several material holes 74 perpendicular to the axis of the roller 71. The small end of the roller 71 extends into the second collection area 13. A shaft 72 is provided at the center of the roller 71. A first fixed bracket 73 fixedly connected to the shaft 72 is fixedly disposed in the large end of the roller 71. A second fixed bracket 75 fixedly connected to the shaft 72 is fixedly disposed in the small end of the roller 71.

[0034] Please see Figure 2 The guide chute 9 is inclined and set below the receiving bin 3. The guide chute 9 gradually narrows from top to bottom to the small end of the roller 71. The small pieces of metal scrap scraped off by the two guide ports 33 are concentrated and guided into the roller 71 through the guide chute 9.

[0035] Please see Figure 8 and Figure 9 The transmission mechanism 8 includes a drive sprocket 81, which is fixed to the outside of the drive shaft 61. One end of the shaft 72 is rotatably connected to the inner wall of the bin 1, and the other end of the shaft 72 extends to the outside of the bin 1 and is fixed with a driven sprocket 82. The driven sprocket 82 is connected to the drive sprocket 81 through a chain 83. When the drive motor 5 drives the drive shaft 61 to rotate, it can also drive the drive sprocket 81 to rotate. Under the transmission action of the chain 83, the driven sprocket 82 can be driven to rotate. Then, the shaft 72 and the first fixed bracket 73 and the second fixed bracket 75 at both ends of the shaft 72 drive the drum 71 to rotate continuously. Since the drum 71 is frustum-shaped, small pieces of metal scrap can continuously move from the small end to the large end of the drum 71. In this process, the material holes 74 on the drum 71 further separate the scrap, so that smaller pieces of metal scrap fall into the second collection area 13 for collection, while larger pieces of metal scrap are discharged from the lower discharge port 14 through the large end of the drum 71.

[0036] The working principle and usage process of this invention are as follows: Road construction waste and building debris enter the silo 1 through the feed inlet 11. After being crushed by the crushing mechanism 10, they fall onto the screen of the screening mechanism 2. Under the vibration of the screen of the screening mechanism 2, large pieces of metal and non-metal waste are discharged through the upper discharge outlet 15, while small pieces of metal and non-metal waste fall into the receiving silo 3 through the screen of the screening mechanism 2.

[0037] The drive motor 5 drives the drive shaft 61 to rotate, which in turn drives the drive gear 62. The meshing of the drive gear 62 and driven gear 43 drives the roller shaft 41 to rotate, which in turn pushes the waste material towards the feed inlet 33 through the magnetic spiral sleeves 42 on the two roller shafts 41. During this process, small pieces of non-metallic waste fall through the screen 32 at the bottom of the receiving bin 3 and are collected by the first collection area 12, while small pieces of metallic waste are pushed towards the feed inlet 33 by the magnetic attraction of the magnetic spiral sleeves 42. The rotation of the drive shaft 61 drives the fixed ring 63 and the swing arm 64 on the fixed ring 63 to rotate. Since the rotation path of the swing arm 64 covers the feed inlet 33 and passes through the scraper 44, as... Figure 4 As shown, during the clockwise rotation of the soft rubber sleeve 643 of the swing arm 64, the small pieces of metal scrap at the guide port 33 are first scraped off. Then, when it rotates past the scraper 44, the rotating scraper 44 can, on the one hand, use the inertial moment generated by the rotation to break up the scraped small pieces of metal scrap, and on the other hand, use the flexibility of the soft rubber sleeve 643 to scrape off the metal scrap attached to the soft rubber sleeve 643.

[0038] Small pieces of metal scrap scraped from the two guide ports 33 are collected and guided into the drum 71 by the guide chute 9. While the drive motor 5 drives the drive shaft 61 to rotate, it can also drive the drive sprocket 81 to rotate. Under the transmission action of the chain 83, the driven sprocket 82 can be driven to rotate. Then, the shaft 72 and the first fixed bracket 73 and the second fixed bracket 75 at both ends of the shaft 72 drive the drum 71 to rotate continuously. Since the drum 71 is frustum-shaped, the small pieces of metal scrap can continuously move from the small end to the large end of the drum 71. In this process, the material holes 74 on the drum 71 further sort the scrap, so that the smaller pieces of metal scrap fall into the second collection area 13 for collection, while the larger pieces of metal scrap are discharged out of the lower discharge port 14 through the large end of the drum 71.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A road slag and construction waste recycling device, comprising a bin body (1), the top of the bin body (1) is provided with a feeding port (11), a crushing mechanism (10) for crushing the construction waste entering the feeding port (11) is arranged in the bin body (1), one side of the top of the bin body (1) is provided with an upper discharge port (15), a screening mechanism (2) for guiding the crushed large waste out of the upper discharge port (15) is arranged below the crushing mechanism (10), characterized in that, Below the screening mechanism (2) is a receiving bin (3) fixed inside the bin body (1). Inside the receiving bin (3) is a pair of spiral guiding mechanisms (4) that can spirally guide small pieces of metal waste after crushing and screening out of the receiving bin (3). The spiral guiding mechanism (4) includes a roller (41). The roller (41) passes through the receiving bin (3) and is rotatably connected to the receiving bin (3). A magnetic spiral sleeve (42) is fixed outside the part of the roller (41) located inside the receiving bin (3). One end of the roller (41) extends to the outside of the receiving bin (3) and is fixed with a driven gear (43). Several scrapers (44) are fixed on the side of the driven gear (43) facing the receiving bin (3) and are arranged in a ring around the roller (41). Below the receiving bin (3) is a first collection area (12) for collecting small pieces of non-metallic waste. A drive motor (5) is fixedly installed outside the bin body (1). A scraping mechanism (6) is provided on the outside of the receiving bin (3) to rotate and scrape away the small pieces of metal waste guided by the two spiral guide mechanisms (4) under the drive motor (5). The scraping mechanism (6) includes a drive shaft (61). One end of the drive shaft (61) is fixed to the output end of the drive motor (5). The other end of the drive shaft (61) passes through the bin body (1) and is rotatably connected to the receiving bin (3). A drive gear (62) that meshes with the driven gear (43) is fixed on the drive shaft (61). The side of the drive gear (62) facing the receiving bin (3) A fixed ring (63) is fixedly sleeved outside the drive shaft (61). Two rotationally symmetrical swing arms (64) are provided on the circumferential surface of the fixed ring (63). A guide port (33) is opened on the end face of the receiving bin (3). The guide port (33) is located at the arched bottom of the screen (32). The rotation path of the swing arm (64) covers the guide port (33) and passes through the scraper (44). The swing arm (64) includes a metal inner arm (641). A hard plastic (642) is fixedly sleeved on the outside of the metal inner arm (641). One end of the metal inner arm (641) is fixedly connected to the fixed ring (63). The other end of the metal inner arm (641) is fixedly sleeved with a soft rubber sleeve (643). The soft rubber sleeve (643) is arc-shaped and bent. A second collection area (13) is provided on one side of the first collection area (12). A lower discharge port (14) is provided on one side of the second collection area (13). A material distribution mechanism (7) is provided in the lower discharge port (14). A guide trough (9) is fixed on the side wall of the second collection area (13) to guide the small pieces of metal scrap scraped by the scraping mechanism (6) to the material distribution mechanism (7). A transmission mechanism (8) is provided outside the silo body (1) to drive the material distribution mechanism (7) to rotate under the synchronous drive of the drive motor (5) and further sort the small pieces of metal scrap.

2. The device for recycling of construction waste and building waste according to claim 1, characterized in that, The bottom middle part of the receiving bin (3) is fixed with a spike (31), and the two spiral guiding mechanisms (4) are located on both sides of the spike (31). The two sides of the spike (31) are fixed with a screen (32) located below the spiral guiding mechanism (4). The screen (32) is an inverted arch structure and coincides with the axis of the two spiral guiding mechanisms (4).

3. The device for recycling of construction waste and road sludge according to claim 1, characterized in that, The material distribution mechanism (7) includes a roller (71), which is rotatably disposed in the lower discharge port (14). The roller (71) is frustum-shaped and has several material holes (74) perpendicular to the axis of the roller (71) on its body. The small end of the roller (71) extends into the second collection area (13). A shaft (72) is provided at the center of the roller (71). A first fixed bracket (73) is fixedly connected to the shaft (72) inside the large end of the roller (71). A second fixed bracket (75) is fixedly connected to the shaft (72) inside the small end of the roller (71).

4. The device for recycling of construction waste and building waste according to claim 3, characterized in that, The guide trough (9) is inclinedly arranged below the receiving bin (3), and the guide trough (9) gradually narrows from top to bottom into the small end of the roller (71).

5. The device for recycling of construction waste and building waste according to claim 4, characterized in that, The transmission mechanism (8) includes a drive sprocket (81), which is fixed outside the drive shaft (61). One end of the shaft (72) is rotatably connected to the inner wall of the silo (1), and the other end of the shaft (72) extends outside the silo (1) and is fixed with a driven sprocket (82). The driven sprocket (82) is connected to the drive sprocket (81) via a chain (83).

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