Waste concrete crushing and regenerating device

Abstract

The invention discloses a waste concrete crushing and regenerating device, and relates to the technical field of concrete recycling, the labor burden of workers is reduced, the waste concrete crushing and regenerating device comprises a box body, and the box body comprises a crushing cavity, a feeding end communicating with the upper end of the crushing cavity and a discharging end communicating with the lower end of the crushing cavity; a fixed jaw plate and a movable jaw plate are installed on the two opposite cavity walls of the crushing cavity correspondingly, conveying rollers with parallel axes are rotationally connected to the two sides of the feeding end and the two sides of the discharging end of the box body correspondingly, a driving source used for driving the conveying rollers to rotate is further arranged in the box body, and the annular conveying belt is wound around the four conveying rollers; the conveying pipeline comprises a first baffle ring and a second baffle ring arranged on the two sides of the annular conveying belt and an outer baffle ring connected to the sides, away from the box body, of the first baffle ring and the second baffle ring, and the first baffle ring, the second baffle ring and the outer baffle ring form a conveying channel used for conveying concrete blocks. Concrete blocks with the particle size larger than the preset crushing particle size can be conveniently subjected to secondary crushing.

Description

Technical Field

[0001] The present application relates to the technical field of concrete recycling, and in particular to a device for crushing and regenerating waste concrete. Background Art

[0002] Concrete is one of the main components of buildings. It is made of cement as the main bonding material, which is mixed with water, sand, gravel, chemical admixtures and mineral admixtures in appropriate proportions and evenly stirred.

[0003] When old buildings are to be demolished, a large number of waste concrete blocks will be generated. These concrete blocks can be reused by crushing them with crushers to reduce the waste of resources.

[0004] In the related art, a Chinese patent application numbered CN201720522654.X discloses a jaw crusher, including a chassis, a fixed jaw plate fixed on the chassis, a movable jaw plate for squeezing stones, an eccentric shaft driven by a motor, and a telescopic rod hinged to the movable jaw plate.

[0005] In the above-mentioned related technologies, the movable jaw plate moves back and forth in the crushing chamber toward the fixed jaw plate, thereby impacting and crushing the concrete blocks entering the crushing chamber. However, in the process of the fixed jaw plate impacting the concrete blocks back and forth, there will always be a region with a wide gap, which will cause some concrete blocks to be directly discharged without being crushed. The staff needs to manually screen out the concrete blocks larger than the predetermined crushing particle size and put them back into the crusher for secondary crushing, which increases the labor burden of the staff. Summary of the invention

[0006] In order to reduce the labor burden of the staff, the present application provides a waste concrete crushing and regeneration device.

[0007] The present application provides a waste concrete crushing and regeneration device, which adopts the following technical solution: The invention comprises a box body, wherein the box body comprises a crushing chamber, a feed end connected with the upper end of the crushing chamber, and a discharge end connected with the lower end of the crushing chamber, and two opposite chamber walls of the crushing chamber are respectively installed with a fixed jaw plate and a movable jaw plate, and also comprises an endless conveyor belt, and both sides of the feed end of the box body and both sides of the discharge end are rotatably connected with conveying rollers whose axes are parallel to each other, and a driving source for driving the conveying rollers to rotate is also arranged in the box body, and the endless conveyor belt is wound around four conveying rollers, and the box body is also provided with a conveying pipeline extending around the track direction of the endless conveyor belt to cover the endless conveyor belt; the conveying pipeline comprises a first baffle ring and a second baffle ring arranged on both sides of the endless conveyor belt and an outer baffle ring connected to the first baffle ring and the second baffle ring on a side away from the box body, and the first baffle ring, the second baffle ring and the outer baffle ring form a conveying channel for conveying concrete blocks; The first retaining ring is located at one side of the bottom of the box body and is provided with a feed port, and a guide pipe connected with the feed port is arranged at an angle downward at the peripheral edge of the discharge end of the box body to feed concrete blocks into the feed port; a plurality of push plates for conveying concrete blocks are arranged at equal intervals around the conveying track of the annular conveyor belt, one end of the push plate abuts against the inner wall of one end of the outer retaining ring, and the first retaining ring is located above the feed end and is provided with a discharge port connected with the conveying channel to discharge concrete blocks into the crushing chamber; the bottom of the guide pipe is evenly distributed with first screening holes for discharging concrete blocks of a predetermined crushing particle size; The conveying pipeline is also provided with a discharge assembly for driving the concrete blocks to be discharged from the discharge port when the concrete blocks are conveyed to the discharge port.

[0008] By adopting the above technical solution, after the crushed concrete blocks are discharged from the discharging end, they are introduced into the conveying channel through the guide pipe, and the concrete blocks meeting the predetermined crushing particle size are discharged from the first screening hole of the guide pipe. The annular conveyor belt and the push plate convey the concrete blocks larger than the predetermined crushing particle size to the discharging port, and are discharged from the discharging port into the crushing chamber through the unloading assembly, thereby performing secondary crushing and reducing the burden on the staff.

[0009] Optionally, the unloading assembly includes a unloading mesh frame rotatably connected between adjacent pushing plates, the unloading mesh frame includes two unloading rods and a unloading mesh connected between the two unloading rods, one end of the two unloading rods is respectively rotatably connected to the bottom of one end of two adjacent pushing plates close to the first baffle ring; the annular conveyor belt is rotatably connected between adjacent pushing plates and is provided with a telescopic rod for pushing the unloading mesh frame to flip toward the discharge port when the unloading mesh frame is located at the discharge port, one end of the telescopic rod is rotatably connected to an end of the annular conveyor belt away from the second baffle ring, a side of the second baffle ring close to the first baffle ring is provided with an annular track, and one end of the telescopic rod is always located in the annular track and moves along the annular track; The circular track includes a first track extending toward one end of the circular conveyor belt and a second track extending toward the outer retaining ring; the second track is located on the inner wall of the second retaining ring near the discharge port; when one end of the telescopic rod moves to the second track, the telescopic rod flips along the second track toward the discharge port.

[0010] By adopting the above technical solution, when the telescopic rod enters the second track, the unloading mesh frame will drive the concrete blocks to flip toward the discharge port, so that the concrete blocks on the unloading mesh frame are discharged from the discharge port and enter the crushing chamber for secondary crushing, and the operation process is more convenient.

[0011] Optionally, a belt conveyor for receiving concrete blocks discharged from the first screening holes is provided below the material guide pipe.

[0012] By adopting the above technical solution and setting up the belt conveyor, it is possible to conveniently collect concrete blocks that meet the predetermined crushing particle size.

[0013] Optionally, the telescopic rod includes a sleeve and an inner rod slidably connected to the sleeve, one end of the sleeve is rotatably connected to the annular conveyor belt, and the convex ball is always connected to the annular track and moves along the track of the annular track.

[0014] By adopting the above technical solution and the provision of the convex ball, one end of the inner rod can always be located in the annular track for movement, thereby facilitating the telescopic rod to switch between the first track and the second track.

[0015] Optionally, the second track has a wavy structure along the length direction of the feed port.

[0016] By adopting the above technical solution, when the telescopic rod moves along the wave track of the second track, the telescopic rod will drive the unloading net frame to swing, thereby further unloading the concrete blocks.

[0017] Optionally, the portion of the outer retaining ring located below the box body is uniformly distributed with second screening holes for discharging concrete blocks of a predetermined crushed particle size, and the belt conveyor is located below the first screening holes and the second screening holes.

[0018] By adopting the above technical solution and setting the second screening holes, concrete blocks meeting the predetermined crushing particle size can be further discharged.

[0019] Optionally, the driving source is a motor fixedly mounted outside the first retaining ring, and the output shaft of the motor is coaxially fixedly connected to one of the conveying rollers.

[0020] By adopting the above technical solution, a motor is used as a driving source, which has the advantages of saving manpower and simple structure.

[0021] Optionally, a protective plate is provided at the upper end of the first baffle ring located at the discharge port and tilted downward.

[0022] By adopting the above technical solution, the protective plate can further guide the concrete blocks discharged from the discharge port into the crushing chamber.

[0023] In summary, the present application includes at least one of the following beneficial effects: The present application can facilitate secondary crushing of concrete blocks larger than a predetermined crushing particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this embodiment; Figure 2 is a schematic diagram of the structure of the material guide pipe of this embodiment; Figure 3is a schematic diagram of the structure of the delivery pipeline of this embodiment; Figure 4 is a cross-sectional schematic diagram of the delivery pipeline of this embodiment; Figure 5 Schematic diagram of the structure of the endless conveyor belt of this embodiment; Figure 6 This embodiment Figure 5 The enlarged schematic diagram of point A in the middle; Figure 7 is a schematic structural diagram of a circular track in this embodiment; Figure 8 Schematic diagram of the structure of the protective plate of this embodiment.

[0025] Explanation of the reference numerals: 1. Box body; 2. Conveying pipeline; 3. Crushing chamber; 4. Moving jaw plate; 5. Fixed jaw plate; 6. Conveying roller; 7. Annular conveyor belt; 8. Motor; 9. First retaining ring; 10. Second retaining ring; 11. Outer retaining ring; 12. Feed inlet; 13. Guide pipe; 14. Pushing plate; 15. First screening hole; 16. Second screening hole; 17. Belt conveyor; 18. Discharge port; 19. Discharge net frame; 20. Discharge rod; 21. Discharge net; 22. Rotating shaft; 23. Telescopic rod; 24. Sleeve; 25. Inner rod; 26. Annular track; 27. Convex ball; 28. First track; 29. ​​Second track; 30. Protective plate. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings.

[0027] The present application discloses a waste concrete crushing and regeneration device. Figure 1 , 2 A waste concrete crushing and regeneration device includes a box body 1 and an annular conveyor belt 7. The box body 1 includes a crushing chamber 3, a feed end connected to the upper end of the crushing chamber 3, and a discharge end connected to the lower end of the crushing chamber 3. The two opposite chamber walls of the crushing chamber 3 are respectively installed with a fixed jaw plate 5 and a movable jaw plate 4. The movable jaw plate 4 can reciprocate back and forth toward the fixed jaw plate 5. After the concrete block enters the crushing chamber 3 from the feed end, it is crushed under the squeezing action of the movable jaw plate 4 and the fixed jaw plate 5 and discharged from the discharge end.

[0028] Reference Figure 2 , 3 The box body 1 is rotatably connected with conveying rollers 6 whose axes are parallel to each other on both sides of the feeding end and the discharging end. The annular conveyor belt 7 surrounds the four conveying rollers 6, and the annular conveyor belt 7 is completely staggered with the discharging end of the box body 1.

[0029] Reference Figure 2 , 3The outer side of the box body 1 is also provided with a conveying pipe 2 that covers the circular conveyor belt 7, and the conveying pipe 2 surrounds the track of the circular conveyor belt 7. Specifically, the conveying pipe 2 includes a first baffle ring 9, a second baffle ring 10 and an outer baffle ring 11. The first baffle ring 9 and the second baffle ring 10 are respectively arranged on both sides of the circular conveyor belt 7 and surround the track of the circular conveyor belt 7. The outer baffle ring 11 is welded to the outer sides of the first baffle ring 9 and the second baffle ring 10. The first baffle ring 9, the second baffle ring 10 and the outer baffle ring 11 form a conveying channel that encloses the circular conveyor belt 7, and the conveying channel can extend from the bottom of the box body 1 to the top of the box body 1.

[0030] Furthermore, the two ends of the conveying roller 6 are rotatably connected between the first retaining ring 9 and the second retaining ring 10. The side wall of the first retaining ring 9 is also provided with a motor 8, the output shaft of the motor 8 is coaxially fixedly connected to one of the conveying rollers 6, and the motor 8 can be used as a driving source for driving the conveying rollers 6 to rotate. When the four conveying rollers 6 rotate, the annular conveyor belt 7 can be driven to rotate.

[0031] Reference Figure 2 , 3 A first baffle ring 9 is located at one side of the bottom of the box body 1 and is provided with a feed port 12. A guide pipe 13 is provided at an angle downward around the discharge end of the box body 1. One end of the guide pipe 13 is connected to the feed port 12, so that the concrete blocks discharged from the discharge end can enter the conveying channel through the guide pipe 13.

[0032] Reference Figure 3 , 4 The endless conveyor belt 7 is provided with a plurality of push plates 14 for pushing concrete blocks at equal intervals around its conveying track, and one end of the push plate 14 abuts against the outer retaining ring 11. When the endless conveyor belt 7 drives the push plate 14 to move, the concrete blocks entering the conveying channel will move along the conveying channel under the action of the push plate 14.

[0033] Reference Figure 2 , 3 In order to collect concrete blocks that have reached a predetermined crushing particle size, first screening holes 15 are evenly distributed at the bottom of the guide pipe 13, and second screening holes 16 are evenly distributed at the lower part of the outer retaining ring 11 located at the box body 1. Concrete blocks that have reached a predetermined crushing particle size can be discharged through the first screening holes 15 and the second screening holes 16.

[0034] Reference Figure 1 A belt conveyor 17 is provided on the box body 1 below the outer retaining ring 11 and the material guide pipe 13 for transporting the concrete blocks discharged from the first screening holes 15 and the second screening holes 16 .

[0035] Reference Figure 2 , 3In order to send the concrete blocks larger than the predetermined crushing particle size back into the crushing chamber 3 for processing, the first retaining ring 9 is provided with a discharge port 18 on the side wall above the box body 1. A discharge assembly is also provided in the conveying pipeline 2. When the concrete blocks are pushed to the discharge port 18 by the push plate 14, the discharge assembly can drive the concrete blocks to be discharged from the discharge port 18 and fall into the crushing chamber 3 for reprocessing.

[0036] Specifically, refer to Figure 5 , 6 The unloading assembly includes a unloading mesh frame 19 rotatably connected between adjacent push plates 14. The unloading mesh frame 19 includes two unloading rods 20 and a unloading mesh 21 connected between the two unloading rods 20. A coaxial rotating shaft 22 is provided at the bottom of the side close to the adjacent push plates 14 and away from the end of the second retaining ring 10. The two unloading rods 20 are respectively rotatably connected to the two rotating shafts 22 of the adjacent push plates 14, so that the unloading mesh frame 19 can be flipped around the rotating shaft 22 toward the discharge port 18.

[0037] Reference Figure 6 , 7 The endless conveyor belt 7 is provided with a telescopic rod 23 in the middle of two adjacent push plates 14, and the unloading net 21 is connected to the telescopic rod 23. A circular track 26 is provided on the side of the second baffle ring 10 close to the first baffle ring 9. One end of the telescopic rod 23 is rotatably connected to the end of the endless conveyor belt 7 away from the second baffle ring 10, and the other end of the telescopic rod 23 is always located in the circular track 26 and moves along the circular track 26.

[0038] Specifically, refer to Figure 6 , 7 8. The telescopic rod 23 includes a sleeve 24 and an inner rod 25 slidably connected to the sleeve 24. One end of the sleeve 24 is rotatably connected to the end of the circular conveyor 7 away from the second baffle ring 10. A convex ball 27 is provided at the end of the inner rod 25 extending out of the sleeve 24. The annular track 26 is in a ball groove structure adapted to the convex ball 27, so that the convex ball 27 can be limited in the annular track 26 and move along the trajectory of the annular track 26.

[0039] The annular track 26 includes a first track 28 extending toward one end of the annular conveyor belt 7 and a second track 29 extending toward the outer retaining ring 11. The second track 29 is located on the inner wall of the second retaining ring 10 near the discharge port 18. When the convex ball 27 at the front end of the inner rod 25 enters the second track 29, the telescopic rod 23 can push the discharge net frame 19 to be in an inclined state, so that the concrete blocks on the discharge net frame 19 can be discharged from the discharge port 18 and enter the crushing chamber 3.

[0040] Reference Figure 7 , 8The second track 29 is located along the length direction of the feed port 12 and extends in a wavy structure. When the telescopic rod 23 moves along the second track 29, the telescopic rod 23 will move the unloading mesh frame 19 up and down within a certain range, so that the concrete blocks on the unloading mesh frame 19 are easier to be discharged from the discharge port 18.

[0041] Reference Figure 8 The first baffle ring 9 is located at the upper end of the discharge port 18 and is provided with a protective plate 30 which is inclined downward. When the unloading net frame 19 discharges the concrete blocks from the discharge port 18, the concrete blocks can fall into the crushing chamber 3 toward the feeding end of the box body 1 for secondary crushing under the obstruction of the protective plate 30.

[0042] The implementation principle of a waste concrete crushing and regeneration device in the embodiment of the present application is: After the concrete blocks are crushed by the crushing chamber 3, they are discharged from the discharge end of the box body 1 and sent into the conveying channel by the guide pipe 13. During this period, the concrete blocks that reach the predetermined crushing particle size are discharged from the first screening hole 15 and the second screening hole 16, and the concrete blocks larger than the predetermined crushing particle size are pushed to the top of the box body 1 by the pushing plate 14, and under the action of the telescopic rod 23, the concrete blocks located on the discharge mesh frame 19 are pushed out from the discharge port 18 and enter the crushing chamber 3 for secondary crushing.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waste concrete crushing and regeneration device, comprising a housing (1), the housing (1) comprising a crushing chamber (3), a feed end connected to the upper end of the crushing chamber (3), and a discharge end connected to the lower end of the crushing chamber (3), two opposite chamber walls of the crushing chamber (3) are respectively provided with a fixed jaw plate (5) and a movable jaw plate (4), characterized in that: It also comprises an annular conveyor belt (7), both sides of the feeding end and both sides of the discharging end of the box body (1) are rotatably connected with conveying rollers (6) whose axes are parallel to each other, and a driving source for driving the conveying rollers (6) to rotate is also arranged in the box body (1), and the annular conveyor belt (7) is wound around four conveying rollers (6), and the box body (1) is also provided with a conveying pipeline (2) extending in the track direction of the annular conveyor belt (7) so as to cover the annular conveyor belt (7); the conveying pipeline (2) comprises a first baffle ring (9) and a second baffle ring (10) arranged on both sides of the annular conveyor belt (7) and an outer baffle ring (11) connected to the first baffle ring (9) and the second baffle ring (10) on the side away from the box body (1), and the first baffle ring (9), the second baffle ring (10) and the outer baffle ring (11) form a conveying channel for conveying concrete blocks; The first retaining ring (9) is provided with a feed port (12) on one side of the bottom of the box body (1); a guide pipe (13) is provided at an angle downward on the periphery of the discharge end of the box body (1) and is connected to the feed port (12) so as to feed concrete blocks into the feed port (12); a plurality of push plates (14) for conveying concrete blocks are provided at equal intervals on the annular conveyor belt (7) around its conveying track, one end of the push plate (14) abuts against the inner wall of one end of the outer retaining ring (11); the first retaining ring (9) is provided with a discharge port (18) connected to the conveying channel for discharging concrete blocks into the crushing chamber (3) above the feed end; and first screening holes (15) are evenly distributed at the bottom of the guide pipe (13) for discharging concrete blocks of a predetermined crushing particle size; The conveying pipeline (2) is also provided with a discharge assembly for driving the concrete blocks to be discharged from the discharge port (18) when the concrete blocks are conveyed to the discharge port (18).

2. The waste concrete crushing and regeneration device according to claim 1 is characterized by: The unloading assembly comprises a unloading net frame (19) rotatably connected between adjacent push plates (14), the unloading net frame (19) comprising two unloading rods (20) and a unloading net (21) connected between the two unloading rods (20), one end of the two unloading rods (20) being rotatably connected to the bottom of one end of two adjacent push plates (14) close to the first retaining ring (9); the annular conveyor belt (7) is located between the adjacent push plates (14) and is rotatably connected with a telescopic rod (23) for pushing the unloading net frame (19) toward the discharge port (18) when the unloading net frame (19) is located at the discharge port (18), one end of the telescopic rod (23) being rotatably connected to one end of the annular conveyor belt (7) away from the second retaining ring (10), a side of the second retaining ring (10) close to the first retaining ring (9) is provided with an annular track (26), one end of the telescopic rod (23) is always located in the annular track (26) and moves along the annular track (26); The annular track (26) comprises a first track (28) extending toward one end close to the annular conveyor belt (7) and a second track (29) extending toward the outer retaining ring (11); the second track (29) is located on the inner wall of the second retaining ring (10) close to the discharge port (18); when one end of the telescopic rod (23) moves to the second track (29), the telescopic rod (23) flips along the second track (29) in the direction toward the discharge port (18).

3. The waste concrete crushing and regeneration device according to claim 1 is characterized in that: A belt conveyor (17) is provided below the material guide pipe (13) for receiving concrete blocks discharged from the first screening holes (15).

4. The waste concrete crushing and regeneration device according to claim 2 is characterized in that: The telescopic rod (23) comprises a sleeve (24) and an inner rod (25) slidably connected to the sleeve (24); one end of the sleeve (24) is rotatably connected to the annular conveyor belt (7); one end of the inner rod (25) extending outside the sleeve (24) is provided with a convex ball (27); the convex ball (27) is always connected to the annular track (26) and moves along the track of the annular track (26).

5. The waste concrete crushing and regeneration device according to claim 4 is characterized in that: The second track (29) presents a wave-shaped structure along the length direction of the feed port (12).

6. The waste concrete crushing and regeneration device according to claim 3 is characterized by: The portion of the outer retaining ring (11) located below the box body (1) is uniformly distributed with second screening holes (16) for discharging concrete blocks of a predetermined crushed particle size, and the belt conveyor (17) is located below the first screening holes (15) and the second screening holes (16).

7. The waste concrete crushing and regeneration device according to claim 1, characterized in that: The driving source is a motor (8) fixedly mounted outside the first retaining ring (9), and the output shaft of the motor (8) is coaxially fixedly connected to one of the conveying rollers (6).

8. The waste concrete crushing and regeneration device according to claim 2 is characterized by: A protective plate (30) is provided at the upper end of the first retaining ring (9) located at the discharge port (18) and tilted downward.

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