Concrete recycling and crushing device

Abstract

The invention discloses a concrete recycling and crushing device, and belongs to the technical field of algae culture equipment.The concrete recycling and crushing device comprises a fixed support, supporting frames are symmetrically and fixedly mounted at the lower end of the fixed support, mounting foot pads are fixedly connected to the lower ends of the supporting frames, and the mounting foot pads are made of rubber; a fixed machine box is arranged above the fixed support, a connecting frame is fixedly installed at the upper end of the fixed machine box, and a movable inner shell is slidably connected into the fixed machine box; a vibration powder shaking mechanism is arranged on one side of the movable inner shell, and a crushing assembly is fixedly installed on the upper portion of the connecting frame. By arranging a two-stage crushing structure of the crushing assembly and the vibration powder shaking mechanism, large concrete blocks are subjected to primary extrusion crushing through the crushing rollers, then secondary fine crushing is conducted through cooperation of the crushing hammers and the impact plates, and the crushing efficiency and the finished product quality are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of concrete recycling technology, specifically relating to a concrete recycling and crushing device. Background Technology

[0002] With the continuous acceleration of urbanization in my country, the demolition of existing buildings and the construction of new ones have generated a large amount of construction waste. Among them, waste concrete is a major component of construction waste, and its disposal has long relied mainly on landfill and stockpiling, which not only occupies a large amount of land resources but also causes serious environmental pollution. At the same time, natural sand and gravel resources are becoming increasingly scarce. Recycling and crushing waste concrete to prepare recycled aggregates has become an important direction for the green and sustainable development of the construction industry. Existing concrete recycling and crushing equipment typically uses jaw crushers, impact crushers, or hammer crushers to perform single-stage or graded crushing of waste concrete blocks. However, in practical applications, traditional crushing equipment mostly adopts single-stage crushing. For larger concrete blocks, it is difficult to achieve the ideal particle size requirements in one crushing, often requiring multiple machines to operate in series or repeated feeding, resulting in a complex process flow, low production efficiency, and a large equipment footprint.

[0003] Existing crushing equipment typically requires separate screening devices to classify the materials after crushing, separating screening from crushing. This not only increases equipment investment and energy consumption but also prolongs the processing time. Furthermore, fine powder materials easily clog the screens during screening, affecting screening efficiency and requiring frequent shutdowns for cleaning, thus reducing continuous operation capability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a concrete recycling and crushing device.

[0005] The technical solution adopted to solve the above-mentioned technical problems is: a concrete recycling and crushing device, including a fixed support, a support frame symmetrically fixedly installed at the lower end of the fixed support, an installation foot pad fixedly connected at the lower end of the support frame, the installation foot pad being made of rubber, a fixed housing provided above the fixed support, a connecting frame fixedly installed at the upper end of the fixed housing, a movable inner shell slidably connected inside the fixed housing; a vibration and powder-shaking mechanism provided on one side of the movable inner shell, and a crushing component fixedly installed above the connecting frame.

[0006] Furthermore, the vibration and powder-shaking mechanism includes a first drive motor fixedly connected to the fixed housing, a drive spindle rotatably connected through the movable inner housing, and multiple central fixed disks evenly arranged inside the movable inner housing, with the multiple central fixed disks fixedly installed between the drive spindle and the drive spindle.

[0007] With the above technical solution, the control valve opens, and concrete blocks are poured into the moving inner shell through the hopper. At this time, the first drive motor drives the drive spindle to rotate, and the drive spindle drives multiple central fixed discs on the shaft to rotate.

[0008] Furthermore, one end of the drive spindle is fixedly connected to a first connecting plate, the end of the movable inner housing near the first connecting plate is fixedly connected to a second connecting plate, the end of the second connecting plate near the first connecting plate is fixedly connected to a second fixing protrusion, the end of the first connecting plate near the second fixing protrusion is fixedly connected to a first fixing protrusion, and a return spring is sleeved on the end of the movable inner housing away from the second connecting plate.

[0009] Through the above technical solution, the drive spindle drives the first connecting disc to rotate, and the moving inner housing is pushed by the return spring so that the second connecting disc and the drive spindle are always in contact. Under the mutual collision of the first fixed protrusion and the second fixed protrusion, the moving inner housing vibrates along the axial direction of the drive spindle, thereby discharging the crushed concrete powder through the filter screen.

[0010] Furthermore, one end of the drive spindle is fixedly connected to the output end of the first drive motor, and a connecting bearing is sleeved on the end of the drive spindle near the first drive motor. The connecting bearing is fixedly installed with the fixed housing, and the drive spindle is rotatably connected to the fixed housing. Multiple connecting shafts are fixedly connected between the central fixed disks, and crushing hammers are rotatably connected through the connecting shafts.

[0011] Through the above technical solution, the central fixed plate drives the crushing hammer to rotate along the drive shaft, thereby causing the crushing hammer to rotate around the connecting shaft, so that the crushing hammer and the impact plate in the moving inner shell cooperate to crush small pieces of concrete soil.

[0012] Furthermore, a receiving box is fixedly installed on the upper end of the movable inner housing, a valve is installed on the lower end of the receiving box, a receiving box is opened on the upper end of the movable inner housing, a filter screen is fixedly connected to the lower end of the movable inner housing, and an outlet groove is opened on the lower end of the fixed housing.

[0013] Furthermore, the crushing assembly includes a crushing box fixedly connected to the connecting frame, a guide box fixedly installed at the lower end of the crushing box, and two crushing rollers symmetrically rotatably connected inside the crushing box.

[0014] Furthermore, a drive gear is fixedly connected to one end of the crushing roller on one side, and a driven gear is meshed with the drive gear on one side. The driven gear is fixedly connected to the crushing roller on the other side. A fixed seat is installed on the side of the crushing box near the drive gear, and the fixed seat is fixed to the crushing box by multiple sets of fixing bolts.

[0015] Furthermore, a second drive motor is fixedly connected to the fixed base, and the output end of the second drive motor is fixedly connected to the drive gear. Both the drive gear and the driven gear are rotatably connected to the crushing box.

[0016] With the above technical solution, when the power supply of the second drive motor is turned on, the output end of the second drive motor will drive the corresponding drive gear to rotate. Due to the meshing transmission between the drive gear and the driven gear, the two crushing rollers will rotate synchronously, thereby squeezing and crushing the concrete blocks accumulated in the crushing box.

[0017] The beneficial effects of the present invention are as follows: (1) The present invention designs a matching vibration and powder shaking mechanism, drives the main shaft to drive the first connecting plate to rotate, and the moving inner housing is pushed by the return spring so that the second connecting plate and the drive main shaft are always in a close contact state. Under the mutual collision of the first fixed protrusion and the second fixed protrusion, the moving inner housing vibrates along the axial direction of the drive main shaft, thereby discharging the crushed concrete powder through the filter screen. At the same time, larger concrete powder particles continue to be crushed in the moving inner housing until they can be discharged from the filter screen. The continuous axial shaking can also prevent the concrete powder from clogging the filter screen. , affecting subsequent filtration, continuous axial vibration can prevent concrete powder from accumulating on the filter screen, maintain the permeability of the filter screen, thereby improving filtration efficiency. The moving inner shell continuously vibrates axially during operation, which not only prevents screen blockage, but also accelerates the discharge of qualified powder from the filter screen, avoids excessive accumulation of material in the shell, ensures that the device can operate continuously and stably for a long time, and reduces the number of shutdowns for cleaning; (2) This invention sets up a two-stage crushing structure of crushing components and vibration shaking powder mechanism. First, the crushing roller performs primary compression crushing on large concrete blocks, and then the crushing hammer and impact plate cooperate to perform secondary fine crushing. The two-stage crushing operation makes the concrete blocks change from large to small and from coarse to fine, completing the entire process from coarse crushing to fine crushing in one go, significantly improving crushing efficiency and finished product quality. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the fixed chassis of the present invention; Figure 4 This is a cross-sectional view of the fixed chassis of the present invention; Figure 5 This is an internal structural diagram of the fixed chassis of the present invention.

[0019] Reference numerals: 1. Fixed support; 11. Support frame; 12. Mounting pad; 2. Fixed housing; 20. Connecting frame; 21. Movable inner housing; 22. Receiving box; 23. Valve; 24. Discharge hopper; 25. Outlet trough; 26. Filter screen; 27. Central fixed plate; 28. Crushing hammer; 29. ​​Connecting shaft; 3. Vibrating powder shaking mechanism; 30. First drive motor; 31. Drive spindle; 32. First connecting plate; 33. First fixing protrusion; 34. Second connecting plate; 35. Second fixing protrusion; 36. Return spring; 37. Connecting bearing; 4. Crushing assembly; 41. Crushing box; 42. Fixing bolt; 43. Crushing roller; 44. Drive gear; 45. Driven gear; 46. Fixed seat; 47. Second drive motor; 48. Guide box. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] like Figures 1-2 As shown, a concrete recycling and crushing device according to this embodiment includes a fixed support 1. A support frame 11 is symmetrically fixedly installed on the lower end of the fixed support 1. An installation foot pad 12 is fixedly connected to the lower end of the support frame 11. The installation foot pad 12 is made of rubber. A fixed housing 2 is provided above the fixed support 1. A connecting frame 20 is fixedly installed on the upper end of the fixed housing 2. A movable inner shell 21 is slidably connected inside the fixed housing 2. A vibration and powder-dispersing mechanism 3 is provided on one side of the movable inner shell 21. A crushing component 4 is fixedly installed above the connecting frame 20.

[0022] like Figures 1-5 As shown, the vibration and powder-shaking mechanism 3 includes a first drive motor 30 fixedly connected to the fixed housing 2. A drive spindle 31 is rotatably connected through the movable inner housing 21. Multiple central fixed disks 27 are evenly arranged inside the movable inner housing 21. The multiple central fixed disks 27 are fixedly installed between the drive spindle 31 and the control valve 23. When the control valve 23 is opened, concrete blocks are poured into the movable inner housing 21 through the discharge hopper 24. At this time, the first drive motor 30 drives the drive spindle 31 to rotate, and the drive spindle 31 drives the multiple central fixed disks 27 on the shaft to rotate.

[0023] like Figures 1-5As shown, one end of the drive spindle 31 is fixedly connected to a first connecting disc 32. The end of the movable inner housing 21 near the first connecting disc 32 is fixedly connected to a second connecting disc 34. The end of the second connecting disc 34 near the first connecting disc 32 is fixedly connected to a second fixing protrusion 35. The end of the first connecting disc 32 near the second fixing protrusion 35 is fixedly connected to a first fixing protrusion 33. A return spring 36 is sleeved on the end of the movable inner housing 21 away from the second connecting disc 34. The drive spindle 31 drives the first connecting disc 32 to rotate. Under the push of the return spring 36, the movable inner housing 21 keeps the second connecting disc 34 in contact with the drive spindle 31. Under the mutual collision of the first fixing protrusion 33 and the second fixing protrusion 35, the movable inner housing 21 vibrates along the axial direction of the drive spindle 31, thereby discharging the crushed concrete powder through the filter screen 26.

[0024] One end of the drive spindle 31 is fixedly connected to the output end of the first drive motor 30. A connecting bearing 37 is sleeved on the end of the drive spindle 31 near the first drive motor 30. The connecting bearing 37 is fixedly installed with the fixed housing 2. The drive spindle 31 and the fixed housing 2 are rotatably connected. Multiple connecting shafts 29 are fixedly connected between the central fixed disks 27. Crushing hammers 28 are rotatably connected through the connecting shafts 29. The central fixed disks 27 drive the crushing hammers 28 to rotate along the drive spindle 31, thereby causing the crushing hammers 28 to rotate around the connecting shafts 29. This allows the crushing hammers 28 to cooperate with the impact plate inside the movable inner housing 21 to crush small pieces of concrete and soil. A receiving box 22 is fixedly installed on the upper end of the movable inner housing 21. A valve 23 is installed on the lower end of the receiving box 22. A filter screen 26 is fixedly connected to the lower end of the movable inner housing 21. An outlet groove 25 is opened at the lower end of the fixed housing 2.

[0025] like Figures 1-3As shown, the crushing assembly 4 includes a crushing box 41 fixedly connected to the connecting frame 20. A guide box 48 is fixedly installed at the lower end of the crushing box 41. Two crushing rollers 43 are symmetrically rotatably connected inside the crushing box 41. A drive gear 44 is fixedly connected to one end of one crushing roller 43. A driven gear 45 is meshed with the drive gear 44 on one side. The driven gear 45 is fixedly connected to the crushing roller 43 on the other side. A fixing seat 46 is installed on the side of the crushing box 41 near the drive gear 44. The fixing seat 46 is secured by multiple sets of fixing bolts 42. The device is fixed to the crushing chamber 41. A second drive motor 47 is fixedly connected to the fixed base 46. The output end of the second drive motor 47 is fixedly connected to the drive gear 44. The drive gear 44 and the driven gear 45 are rotatably connected to the crushing chamber 41. When the power of the second drive motor 47 is turned on, the output end of the second drive motor 47 will drive the corresponding drive gear 44 to rotate. Due to the meshing transmission between the drive gear 44 and the driven gear 45, the two crushing rollers 43 will rotate synchronously, thereby squeezing and crushing the concrete blocks accumulated in the crushing chamber 41.

[0026] The working principle of this embodiment is as follows: the worker puts the waste concrete blocks into the crushing box 41 from above, starts the power supply of the second drive motor 47, and the output of the second drive motor 47 drives the corresponding drive gear 44 to rotate. Since the drive gear 44 and the driven gear 45 mesh and transmit power, the two crushing rollers 43 will rotate synchronously, thereby squeezing and crushing the concrete blocks accumulated in the crushing box 41, breaking the concrete blocks into small pieces, and sending them into the receiving box 22 below. When control valve 23 opens, concrete blocks are poured into the movable inner housing 21 through hopper 24. At this time, the first drive motor 30 drives the drive shaft 31 to rotate, which in turn drives multiple central fixed discs 27 on the shaft to rotate. The central fixed discs 27 drive the crushing hammers 28 to rotate along the drive shaft 31, causing the crushing hammers 28 to rotate around the connecting shaft 29. This allows the crushing hammers 28 to cooperate with the impact plate inside the movable inner housing 21 to crush small concrete blocks. Simultaneously, as the drive shaft 31 rotates, it also drives the first connecting disc 32 to rotate, further crushing the concrete blocks. Under the push of the return spring 36, the housing 21 keeps the second connecting plate 34 in contact with the drive shaft 31. The collision between the first fixed protrusion 33 and the second fixed protrusion 35 causes the moving inner housing 21 to vibrate axially along the drive shaft 31, thereby discharging the crushed concrete powder through the filter screen 26. At the same time, larger concrete particles continue to be crushed inside the moving inner housing 21 until they can be discharged from the filter screen 26. The continuous axial vibration also prevents the concrete powder from clogging the filter screen 26 and affecting subsequent filtration.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A concrete recycling and crushing device, comprising a fixed support (1), characterized in that, The fixed support (1) is symmetrically fixedly installed with a support frame (11) at the lower end. The support frame (11) is fixedly connected with a mounting foot pad (12) at the lower end. The mounting foot pad (12) is made of rubber. A fixed housing (2) is provided above the fixed support (1). A connecting frame (20) is fixedly installed at the upper end of the fixed housing (2). A movable inner shell (21) is slidably connected inside the fixed housing (2). A vibration and powder-shaking mechanism (3) is provided on one side of the movable inner shell (21), and a crushing component (4) is fixedly installed above the connecting frame (20).

2. The concrete recycling and crushing device according to claim 1, characterized in that, The vibration and powder shaking mechanism (3) includes a first drive motor (30) fixedly connected to the fixed housing (2), a drive spindle (31) is rotatably connected through the movable inner housing (21), and a plurality of central fixed disks (27) are evenly arranged in the movable inner housing (21), and the plurality of central fixed disks (27) are fixedly installed between the drive spindle (31).

3. The concrete recycling and crushing device according to claim 2, characterized in that, One end of the drive spindle (31) is fixedly connected to a first connecting disc (32). The end of the movable inner housing (21) near the first connecting disc (32) is fixedly connected to a second connecting disc (34). The end of the second connecting disc (34) near the first connecting disc (32) is fixedly connected to a second fixing protrusion (35). The end of the first connecting disc (32) near the second fixing protrusion (35) is fixedly connected to a first fixing protrusion (33). A return spring (36) is sleeved on the end of the movable inner housing (21) away from the second connecting disc (34).

4. The concrete recycling and crushing device according to claim 2, characterized in that, One end of the drive spindle (31) is fixedly connected to the output end of the first drive motor (30). A connecting bearing (37) is sleeved on the end of the drive spindle (31) near the first drive motor (30). The connecting bearing (37) is fixedly installed with the fixed housing (2). The drive spindle (31) and the fixed housing (2) are rotatably connected. Multiple connecting shafts (29) are fixedly connected between the central fixed disks (27). A crushing hammer (28) is rotatably connected through the connecting shaft (29).

5. The concrete recycling and crushing device according to claim 1, characterized in that, The upper end of the movable inner housing (21) is fixedly installed with a receiving box (22), and the lower end of the receiving box (22) is equipped with a valve (23). The upper end of the movable inner housing (21) has a receiving box (22), and the lower end of the movable inner housing (21) is fixedly connected with a filter screen (26). The lower end of the fixed housing (2) has an outlet groove (25).

6. The concrete recycling and crushing device according to claim 1, characterized in that, The crushing assembly (4) includes a crushing box (41) fixedly connected to the connecting frame (20), a guide box (48) is fixedly installed at the lower end of the crushing box (41), and two crushing rollers (43) are symmetrically rotatably connected inside the crushing box (41).

7. The concrete recycling and crushing device according to claim 1, characterized in that, One end of the crushing roller (43) on one side is fixedly connected to a drive gear (44), and a driven gear (45) is meshed and driven on one side of the drive gear (44). The driven gear (45) is fixedly connected to the crushing roller (43) on the other side. A fixed seat (46) is installed on the side of the crushing box (41) near the drive gear (44). The fixed seat (46) is fixed to the crushing box (41) by multiple sets of fixing bolts (42).

8. The concrete recycling and crushing device according to claim 7, characterized in that, A second drive motor (47) is fixedly connected to the fixed base (46). The output end of the second drive motor (47) is fixedly connected to the drive gear (44). The drive gear (44) and the driven gear (45) are both rotatably connected to the crushing box (41).

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