Construction waste crushing and grading treatment device

Abstract

The invention discloses a construction waste crushing and grading treatment device, and belongs to the technical field of construction waste crushing, the construction waste crushing and grading treatment device comprises a crushing box, a feed hopper, a protective shell and a collecting box, a plurality of discharge ports are formed in the side wall of the crushing box, and two coarse crushing rollers and two fine crushing rollers are rotatably connected in the crushing box; a sorting mechanism is arranged between the coarse crushing roller and the fine crushing roller and comprises a conveying belt, a magnetic roller and two first rollers, and the two first rollers are rotationally connected into the crushing box; through cooperative use of all the devices, the screening plate and the feeding box are arranged to convey substandard construction waste to be continuously smashed, and when the fine smashing rollers rotate, the two fine smashing rollers drive a rotary disc and a second roller to rotate through a fourth belt wheel set and a fifth belt wheel set correspondingly, so that the screening plate is driven to vibrate materials in a vibrating mode; and the feeding box on the connecting belt is driven to continuously feed materials to the fine crushing roller until all the construction waste is crushed to the target particle size.

Description

Technical Field

[0001] The invention relates to the technical field of building waste crushing, in particular to a building waste crushing and grading processing device. Background Art

[0002] Construction waste refers to the slag, abandoned soil, abandoned materials, silt and other waste generated during the construction, laying, demolition and repair of various buildings, structures, pipelines, etc. by construction units or individuals.

[0003] Upon investigation, a Chinese invention patent discloses a construction waste crushing and grading processing device (publication number: CN112121909A), which includes a crushing box and a dust removal structure. The top of the crushing box is fixedly connected to a feeding hopper, and the interior of the crushing box is rotatably connected to a first coarse crushing wheel and a second coarse crushing wheel at the lower side of the feeding hopper through a first rotating shaft. The first coarse crushing wheel is arranged on the right side of the second coarse crushing wheel, and the first rotating shaft extends to the rear side of the crushing box. The first gear and the second gear are respectively fixedly connected behind the first coarse crushing wheel and the second coarse crushing wheel, and the first gear and the second gear are meshed with each other. The front end of the crushing box is fixedly connected to a first motor in front of the first coarse crushing wheel, and the output end of the first motor extends to the interior of the crushing box and is fixedly connected to the front end of the first rotating shaft on the first coarse crushing wheel.

[0004] Although the above patent sets an electromagnet to absorb iron waste in construction waste to prevent the iron waste from reducing the service life of the crushing wheel, and the coarse crushing wheel and the fine crushing wheel grade the construction waste to improve the crushing effect of the construction waste, but in the final crushing stage of the construction waste, the fine crushing wheel cannot completely crush the coarsely crushed construction waste to the target particle size at one time, and the unqualified part needs to be screened and re-crushed. At the same time, the non-ferrous metals (such as aluminum, copper, etc.) in the construction waste that are not absorbed by the electromagnet will continue to wear the crushing wheel during the crushing process, resulting in a significant reduction in the service life of the equipment. Summary of the Invention

[0005] The present invention provides a construction waste crushing and grading processing device, aiming to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: comprising a crushing box, a feed hopper, a protective shell, and a collection box, wherein a plurality of discharge ports are provided on the side wall of the crushing box, two coarse crushing rollers and a fine crushing roller are rotatably connected in the crushing box, a sorting mechanism is provided between the coarse crushing roller and the fine crushing roller, the sorting mechanism comprising a conveyor belt, a magnetic roller, and two first rollers, both of which are rotatably connected in the crushing box, and the conveyor belt is driven and connected between the two first rollers; A screening and feeding mechanism is provided at the bottom of the fine crushing roller, and the screening and feeding mechanism includes a screen plate, a connecting belt, two second rollers, a turntable, a connecting rod and a plurality of feeding boxes fixed on the connecting belt. One end of the screen plate and the two second rollers are rotatably connected in the crushing box, and the two turntables are symmetrically connected to the outer wall of the crushing box. A mounting frame and a connecting frame are fixedly connected to the outer wall of the crushing box, and a mounting plate is connected to the mounting frame.

[0007] As a preferred technical solution of the present application, two mutually meshing first and second gears are rotatably connected to the side wall of the crushing box, and the first and second gears are coaxially fixed with the coarse crushing roller and the fine crushing roller respectively. A second pulley set is connected between one of the first gears and the first roller, and the magnetic roller is arranged in the first roller and is rotatably connected to the connecting frame.

[0008] As a preferred technical solution of the present application, an adjustment assembly is provided between the mounting plate and the connecting frame, and the adjustment assembly includes a first driving wheel, a second driving wheel, an idler wheel and a driven wheel, the first driving wheel and the second driving wheel are coaxially fixed, the first driving wheel, the second driving wheel and the idler wheel are all rotatably connected to the mounting plate, and the second driving wheel is meshed with the idler wheel, the first driving wheel and the idler wheel can both mesh with the driven wheel, the driven wheel is rotatably connected to the connecting frame and is coaxially fixed with the magnetic roller, a spline shaft is rotatably connected between the mounting frame and the crushing box, and the first driving wheel and the second driving wheel both slide coaxially with the spline shaft, and a third pulley group is connected between the first roller and the spline shaft.

[0009] As a preferred technical solution of the present application, the mounting plate is symmetrically provided with mounting grooves, a connecting block is fixedly connected in the mounting groove, a clamping block is slidably connected in the mounting groove, one end of the clamping block is fixedly connected to a round rod, and the round rod slides through the connecting block, a second spring is sleeved on the round rod, and the two ends of the second spring are respectively fixedly connected to the clamping block and the connecting block, a push block is slidably connected to the mounting plate, and the push block is fixedly connected to the round rod, and a plurality of clamping slots are symmetrically provided on the mounting frame, and the other end of the clamping block extends out of the mounting slot and is inserted into the clamping slot.

[0010] As a preferred technical solution of the present application, a first movable groove is provided on the side wall of the crushing box, the other end of the screen plate is fixedly connected to a connecting shaft, and the connecting shaft is movably connected in the first movable groove, the two ends of the connecting rod are respectively rotatably connected to the turntable and the connecting shaft, the two second rollers are both rotatably connected in the crushing box, the connecting belt is transmission connected between the two second rollers, a first guide plate is fixedly connected in the crushing box, and the connecting belt passes through the first guide plate, and the first guide plate is arranged below the screen plate.

[0011] As a preferred technical solution of the present application, a fifth pulley group is connected between one of the fine crushing rollers and the second roller, a fourth pulley group and a sixth pulley group are respectively connected between the other fine crushing roller and the turntable and the coarse crushing roller, an air outlet plate is provided below the conveyor belt, an air inlet is provided on the side wall of the crushing box, and the air inlet is opposite to the air outlet plate.

[0012] As a preferred technical solution of the present application, a motor is fixedly connected to the side wall of the crushing box, and a first pulley set is connected between the output end of the motor and another first gear.

[0013] As a preferred technical solution of the present application, a second guide plate is symmetrically provided in the crushing box, one end of the second guide plate is rotatably connected to the crushing box, a second movable groove is symmetrically opened on the side wall of the crushing box, a cylinder is fixedly connected to the outer wall of the crushing box, a U-shaped frame is fixedly connected to the output end of the cylinder, a movable frame is fixedly connected to the U-shaped frame, the other end of the second guide plate is fixedly connected to a movable shaft, and the movable shaft is movably connected in the second movable groove and the movable frame.

[0014] As a preferred technical solution of the present application, a cavity is opened in the feed hopper, an electromagnet is fixedly connected in the cavity, a metal ball is provided in the cavity, a first spring is fixedly connected between the metal ball and the inner wall of the cavity, a metal block is symmetrically fixed in the cavity, and the metal block is electrically connected to the cylinder.

[0015] As a preferred technical solution of the present application, a fourth guide plate, a fifth guide plate, a sixth guide plate and two third guide plates are fixedly connected in the crushing box, and the two ends of the third guide plate are respectively against the second guide plate and the discharge port, the fourth guide plate and the fifth guide plate are both arranged above the fine crushing roller, and the sixth guide plate is arranged below the fine crushing roller.

[0016] The present invention provides a device for crushing and grading construction waste, which has the following beneficial effects compared with the prior art: 1. Magnetic rollers are set up to sort non-ferrous metals in construction waste. When the coarsely crushed construction waste is transported by the conveyor belt, the magnetic roller is driven to rotate. The rotating magnetic roller generates an alternating magnetic field to cut the metal. A closed vortex current is generated inside the metal due to electromagnetic induction. The eddy current itself will generate a secondary magnetic field in the opposite direction of the original magnetic field. A mutually repulsive force is formed between the metal and the magnetic field of the magnetic roller. The metal is separated from its original falling trajectory by the repulsive force and thrown toward the discharge port in a parabola. In this way, non-ferrous metals can be sorted out from construction waste to avoid continuous wear of the fine crushing roller during the crushing process, which reduces the service life of the fine crushing roller.

[0017] 2. The substandard construction waste is transported to continue to be crushed by setting a screen plate and a feeding box. When the fine crushing roller rotates, the two fine crushing rollers respectively drive the turntable and the second roller to rotate with the help of the fourth pulley group and the fifth pulley group, thereby driving the screen plate to vibrate and screen the material, and driving the feeding box on the connecting belt to continuously feed the fine crushing roller until all the construction waste is crushed to the target particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a construction waste crushing and grading processing device; Figure 2 This is a front structural diagram of a crushing box in a construction waste crushing and grading device; Figure 3 This is a rear structural diagram of a crushing box in a construction waste crushing and grading device; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 It is a front cross-sectional view of a crushing box in a construction waste crushing and grading processing device; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 for Figure 5 Enlarged view of point C in the middle; Figure 8 for Figure 5 Enlarged view of point D in the middle; Figure 9 This is a diagram of the internal structure of a crushing box in a construction waste crushing and grading device; Figure 10 for Figure 9 Enlarged view of point E in the middle; Figure 11 This is a structural cross-sectional view of a mounting plate in a construction waste crushing and grading device; Figure 12 for Figure 11 Enlarged view of point F in the middle.

[0019] In the picture: 1. Crushing box; 2. Feed hopper; 3. Protective shell; 4. Collecting box; 5. Motor; 6. First pulley assembly; 7. First gear; 8. Second pulley assembly; 9. Third pulley assembly; 10. Mounting frame; 11. Connecting frame; 12. Second gear; 13. Fourth pulley assembly; 14. Air inlet; 15. Fifth pulley assembly; 16. Discharge port; 17. Turntable; 18. Connecting rod; 19. Connecting shaft; 20. First movable trough; 21. Sixth pulley assembly; 22. First roller; 23. Magnetic roller; 24. Cylinder; 25. U-shaped frame; 26. Movable frame; 27. Movable shaft; 28. Second movable trough; 29. Coarse crushing roller; 30. Fine grinding roller; 31. Electromagnet; 32. Metal block; 33. Metal ball; 34. First spring; 35. Screen plate; 36. First guide plate; 37. Second roller; 38. Connecting belt; 39. Loading box; 40. Conveyor belt; 41. Air outlet plate; 42. Second guide plate; 43. Third guide plate; 44. Fourth guide plate; 45. Fifth guide plate; 46. Sixth guide plate; 47. First driving wheel; 48. Second driving wheel; 49. Idle wheel; 50. Mounting plate; 51. Push block; 52. Driven wheel; 53. Round rod; 54. Connecting block; 55. Second spring; 56. Block; 57. Slot. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The present invention provides a device for crushing and classifying construction waste. Figures 1-12As shown, the technical solution includes a crushing box 1, a feed hopper 2, a protective shell 3 and a collection box 4, the feed hopper 2 is fixed on the top of the crushing box 1, the protective shell 3 is fixed on both sides of the collection box 4, the collection box 4 is movably connected to the bottom of the crushing box 1, and a plurality of discharge ports 16 are provided on the side wall of the crushing box 1. Two coarse crushing rollers 29 and fine crushing rollers 30 are rotatably connected in the crushing box 1, and a sorting mechanism is provided between the coarse crushing roller 29 and the fine crushing roller 30. The sorting mechanism includes a conveyor belt 40, a magnetic roller 23 and two first rollers 22. The two first rollers 22 are both rotatably connected in the crushing box 1, and the conveyor belt 40 is transmission-connected between the two first rollers 22. The non-ferrous metals in the construction waste are sorted by setting the magnetic roller 23. When transporting coarsely crushed construction waste, the magnetic roller 23 can be driven to rotate, and the rotating magnetic roller 23 can be used to separate non-ferrous metals from the construction waste, so as to prevent the non-ferrous metals from continuously wearing the fine crushing roller 30 during the crushing process, thereby reducing the service life of the fine crushing roller 30. It should be noted that the rotating magnetic roller 23 generates an alternating magnetic field to cut the metal, and a closed vortex current is generated inside the metal due to electromagnetic induction. The eddy current itself will generate a secondary magnetic field in the opposite direction of the original magnetic field, and a mutually repulsive force is formed between the metal and the magnetic field of the magnetic roller 23. The metal is separated from its original falling trajectory by the repulsive force and thrown toward the discharge port 16 in a parabolic trajectory, thereby separating the non-ferrous metals from the construction waste. The eddy current separation technology is an existing mature technology and will not be elaborated on here. The bottom of the fine grinding roller 30 is provided with a screening and feeding mechanism, which includes a screen plate 35, a connecting belt 38, two second rollers 37, a turntable 17, a connecting rod 18 and a plurality of feeding boxes 39 fixed on the connecting belt 38. One end of the screen plate 35 and the two second rollers 37 are rotatably connected to the crushing box 1, and the two turntables 17 are symmetrically connected to the outer wall of the crushing box 1 for rotation. The outer wall of the crushing box 1 is fixedly connected with a mounting frame 10 and a connecting frame 11, and the mounting frame 10 is connected with a mounting plate 50. By arranging the screen plate 35 and the feeding box 39, the substandard construction waste is conveyed to continue to be crushed. When the fine grinding roller 30 rotates, the two fine grinding rollers 30 respectively drive the turntable 17 and the second roller 37 to rotate by means of the fourth pulley group 13 and the fifth pulley group 15, thereby driving the screen plate 35 to vibrate and screen the material, and driving the feeding box 39 on the connecting belt 38 to continuously feed the fine grinding roller 30 until all the construction waste is crushed to the target particle size; An adjustment assembly is provided between the mounting plate 50 and the connecting frame 11. The adjustment assembly includes a first driving wheel 47, a second driving wheel 48, an idler wheel 49 and a driven wheel 52. The rotation direction of the magnetic roller 23 is adjusted by setting the adjustment assembly. When the movement direction of the magnetic roller 23 is the same as that of the conveyor belt 40, the repulsive force between the magnetic roller 23 and the metal is more conducive to the forward parabolic movement of large materials. When the movement direction of the magnetic roller 23 is opposite to that of the conveyor belt 40, the vertical ejection force of small materials is enhanced. The rotation direction of the magnetic roller 23 is adjusted as required, with reverse rotation for small particle size materials and forward rotation for large particle size materials.

[0022] Reference Figure 9 and Figure 10 As shown, two mutually meshing first gears 7 and second gears 12 are rotatably connected to the side wall of the crushing box 1. The first gear 7 and the second gear 12 are coaxially fixed to the coarse crushing roller 29 and the fine crushing roller 30 respectively. A second pulley group 8 is connected between one of the first gears 7 and the first roller 22. The magnetic roller 23 is arranged in the first roller 22 and is rotatably connected to the connecting frame 11. The driven wheel 52 is rotatably connected to the connecting frame 11 and is coaxially fixed to the magnetic roller 23. The first driving wheel 47 and the second driving wheel 48 are coaxially fixed. The first driving wheel 47 , the second driving wheel 48 and the idler wheel 49 are both rotatably connected to the mounting plate 50, and the second driving wheel 48 is meshed with the idler wheel 49, the first driving wheel 47 and the idler wheel 49 can both be meshed with the driven wheel 52, a spline shaft is rotatably connected between the mounting frame 10 and the crushing box 1, and the first driving wheel 47 and the second driving wheel 48 slide coaxially with the spline shaft, a third pulley group 9 is connected between the first roller 22 and the spline shaft, a motor 5 is fixedly connected to the side wall of the crushing box 1, and a first pulley group 6 is connected between the output end of the motor 5 and another first gear 7; When in use, the motor 5 is started, and the two coarse crushing rollers 29 are driven to rotate in opposite directions with the help of the first pulley group 6 and the two first gears 7. The coarse crushing roller 29 drives the first roller 22 to rotate with the help of the second pulley group 8, thereby driving the conveyor belt 40 to transport the crushed construction waste. At the same time, the rotating first roller 22 drives the first driving wheel 47 and the second driving wheel 48 to rotate through the third pulley group 9. When the first driving wheel 47 is engaged with the driven wheel 52, the rotating first driving wheel 47 can drive the magnetic roller 23 to rotate through the driven wheel 52, so that the rotation direction of the magnetic roller 23 is opposite to the movement direction of the conveyor belt 40. When the idler wheel 49 is engaged with the driven wheel 52, the rotating second driving wheel 48 drives the driven wheel 52 to rotate through the idler wheel 49, thereby driving the magnetic roller 23 to rotate, so that the rotation direction of the magnetic roller 23 is the same as the movement direction of the conveyor belt 40. It should be noted that the motor 5 is connected to an external power supply through a wire. The external power supply includes a battery for providing electrical energy to the motor 5 and a control switch for controlling its start and stop. The external power supply is a prior art. The specific model specifications of the motor 5 need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0023] Reference Figure 11 and Figure 12As shown, the mounting plate 50 is symmetrically provided with mounting grooves, a connecting block 54 is fixedly connected in the mounting groove, a clamping block 56 is slidably connected in the mounting groove, one end of the clamping block 56 is fixedly connected to a round rod 53, and the round rod 53 slides through the connecting block 54, a second spring 55 is sleeved on the round rod 53, and the two ends of the second spring 55 are respectively fixedly connected to the clamping block 56 and the connecting block 54, a push block 51 is slidably connected to the mounting plate 50, and the push block 51 is fixedly connected to the round rod 53, a plurality of clamping grooves 57 are symmetrically provided on the mounting frame 10, the other end of the clamping block 56 extends out of the mounting groove and is inserted into the clamping groove 57, and the mounting plate 50 is arranged in a "T" shape; When in use, the two pushing blocks 51 are pulled, and the pushing blocks 51 drive the card block 56 through the round rod 53 to compress the second spring 55, and retract it into the card slot 57 and move it out of the mounting slot. At this time, the mounting plate 50 can be moved to drive the first driving wheel 47, the second driving wheel 48 and the idler wheel 49 to move. After releasing the pushing block 51, the reset second spring 55 can push the card block 56 to be reinserted into the card slot 57, limiting the mounting plate 50. When the card block 56 is inserted into the card slot 57 close to the crushing box 1, the idler wheel 49 engages with the driven wheel 52. When the card block 56 is inserted into the card slot 57 away from the crushing box 1, the first driving wheel 47 engages with the driven wheel 52.

[0024] Reference Figure 3 、 Figure 4 、 Figure 5 and Figure 8 As shown, a first movable groove 20 is provided on the side wall of the crushing box 1, the other end of the sieve plate 35 is fixedly connected to the connecting shaft 19, and the connecting shaft 19 is movably connected in the first movable groove 20, the two ends of the connecting rod 18 are respectively rotatably connected to the turntable 17 and the connecting shaft 19, the two second rollers 37 are rotatably connected in the crushing box 1, and the connecting belt 38 is transmission-connected between the two second rollers 37, the crushing box 1 is fixedly connected with a first guide plate 36, and the connecting belt 38 passes through the first guide plate 36, the first guide plate 36 is arranged below the sieve plate 35, and one of the fine crushing rollers 30 is connected to the second A fifth pulley set 15 is connected between the rollers 37, a fourth pulley set 13 and a sixth pulley set 21 are connected between the other fine crushing roller 30 and the turntable 17 and the coarse crushing roller 29, respectively. An air outlet plate 41 is provided below the conveyor belt 40, and an air inlet 14 is provided on the side wall of the crushing box 1, and the air inlet 14 is opposite to the air outlet plate 41. It should be noted that a centrifugal fan is provided between the air inlet 14 and the air outlet plate 41. With the help of the centrifugal fan, a stable airflow is generated, and the density difference of different materials in the construction waste is used to achieve light and heavy separation, and the lighter plastic or foam board fragments are blown to the discharge port 16; During use, as the coarse crushing roller 29 rotates, the six pulley group 21 and the two second gears 12 drive the two fine crushing rollers 30 to rotate in opposite directions to continue crushing the sorted construction waste. During the rotation of the fine crushing roller 30, one of the fine crushing rollers 30 drives the turntable 17 to rotate through the fourth pulley group 13. The rotating turntable 17 drives the connecting shaft 19 to move back and forth in the first movable groove 20 through the connecting rod 18, thereby driving the screen plate 35 to vibrate, thereby screening out substandard construction waste, and the qualified construction waste falls into the collection box 4 for collection. The screened waste moves from the first guide plate 36 to the feeding box 39. At the same time, the other fine crushing roller 30 drives the second roller 37 to rotate through the fifth pulley group 15, and the rotating second roller 37 drives the feeding box 39 on the connecting belt 38 to continuously transport upward, thereby transporting the substandard construction waste to the fine crushing roller 30 for continued crushing until all the construction waste is crushed to the target particle size.

[0025] Reference Figure 3-Figure 6 As shown, a second guide plate 42 is symmetrically provided in the crushing box 1, one end of the second guide plate 42 is rotatably connected to the crushing box 1, a second movable groove 28 is symmetrically provided on the side wall of the crushing box 1, a cylinder 24 is fixedly connected to the outer wall of the crushing box 1, a U-shaped frame 25 is fixedly connected to the output end of the cylinder 24, a movable frame 26 is fixedly connected to the U-shaped frame 25, the other end of the second guide plate 42 is fixedly connected to a movable shaft 27, and the movable shaft 27 is movably connected in the second movable groove 28 and the movable frame 26, a cavity is provided in the feed hopper 2, an electromagnet 31 is fixedly connected in the cavity, a metal ball 33 is provided in the cavity, a first spring 34 is fixedly connected between the metal ball 33 and the inner wall of the cavity, a metal block 32 is symmetrically fixed in the cavity, and the metal block 32 is electrically connected to the cylinder 24, and the material selected for the metal ball 33 can be magnetically adsorbed; When in use, the electromagnet 31 is energized to make it magnetic, and the bad iron garbage in the construction waste in the feed hopper 2 is adsorbed on the side wall of the feed hopper 2, so that the iron garbage is sorted out. At the same time, the electromagnet 31 adsorbs the metal ball 33 to stretch the first spring 34, and makes the metal ball 33 and the two metal blocks 32 collide. At this time, the circuit connected to the cylinder 24 is closed, and the output end of the cylinder 24 drives the movable frame 26 to move through the U-shaped frame 25, and the movable frame 26 drives the movable shaft 27 on the second guide plate 42 to move in the second movable groove 28. The movable shaft 27 drives the second guide plate 42 to rotate, so that the top of the second guide plate 42 is against the bottom of the feed hopper 2, which is convenient for the construction waste to fall into the coarse crushing roller 29 for crushing. When the construction waste is crushed and the iron garbage needs to be collected, the electromagnet 31 is energized to make the top of the second guide plate 42 collide with the bottom of the feed hopper 2, so that the construction waste can be crushed. When the magnet 31 is powered off, the reset first spring 34 pulls the metal ball 33 to separate from the metal block 32. At this time, the cylinder 24 is powered off, and the output end of the cylinder 24 automatically retracts, and drives the second guide plate 42 to rotate, so that the ends of the two second guide plates 42 are against each other. At the same time, the iron garbage adsorbed on the feed hopper 2 falls and is discharged from the discharge port 16 under the guidance of the second guide plate 42 and the third guide plate 43. It should be noted that the cylinder 24 is a press-in single-acting cylinder. When the air is ventilated, the piston rod extends. When the air is cut off, the built-in spring automatically pushes the piston rod to retract. It has a simple structure and can automatically reset without an external air source after power failure. The specific model and specifications of the cylinder 24 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0026] Reference Figure 9 As shown, a fourth guide plate 44, a fifth guide plate 45, a sixth guide plate 46 and two third guide plates 43 are fixedly connected in the crushing box 1. The two ends of the third guide plate 43 are respectively against the second guide plate 42 and the discharge port 16. The fourth guide plate 44 and the fifth guide plate 45 are both arranged above the fine crushing roller 30, and the sixth guide plate 46 is arranged below the fine crushing roller 30. With the help of the fourth guide plate 44, the sorted construction waste can be guided to the fine crushing roller 30 for crushing. With the help of the fifth guide plate 45, the finely crushed construction waste can be guided to one end of the screen plate 35, which can fully screen the crushed construction waste. With the help of the sixth guide plate 46, the unqualified construction waste that has been screened can be guided to the fine crushing roller 30 for further crushing.

[0027] In summary: when working, the motor 5 is started, and the two coarse crushing rollers 29 are driven to rotate in opposite directions by means of the first pulley set 6 and the two first gears 7. The coarse crushing rollers 29 drive the first roller 22 to rotate by means of the second pulley set 8, thereby driving the conveyor belt 40 to transport the crushed construction waste. At the same time, the rotating first roller 22 drives the magnetic roller 23 to rotate through the third pulley set 9 and the adjustment component, and the non-ferrous metals in the construction waste are sorted out by means of the rotating magnetic roller 23; During the rotation of the coarse crushing roller 29, the two fine crushing rollers 30 are driven to rotate in opposite directions with the help of the sixth pulley group 21 and the two second gears 12 to continue crushing the sorted construction waste. During the rotation of the fine crushing roller 30, one of the fine crushing rollers 30 drives the turntable 17 to rotate through the fourth pulley group 13, and the rotating turntable 17 drives the connecting shaft 19 to move back and forth in the first movable groove 20 through the connecting rod 18, thereby driving the screen plate 35 to vibrate, so as to screen out substandard construction waste, and the screened waste is moved from the first guide plate 36 to the feeding box 39. At the same time, the other fine crushing roller 30 drives the second roller 37 to rotate through the fifth pulley group 15, and the rotating second roller 37 drives the feeding box 39 on the connecting belt 38 to continuously transport upward, so as to transport the substandard construction waste to the fine crushing roller 30 for further crushing.

[0028] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A construction waste crushing and grading treatment device, comprising a crushing box (1), a feed hopper (2), a protective shell (3) and a collection box (4), wherein a plurality of discharge ports (16) are provided on the side wall of the crushing box (1), and characterized in that: Two coarse crushing rollers (29) and a fine crushing roller (30) are rotatably connected in the crushing box (1); a sorting mechanism is provided between the coarse crushing roller (29) and the fine crushing roller (30); the sorting mechanism comprises a conveyor belt (40), a magnetic roller (23) and two first rollers (22); the two first rollers (22) are both rotatably connected in the crushing box (1); and the conveyor belt (40) is transmission-connected between the two first rollers (22); A screening and feeding mechanism is provided at the bottom of the fine grinding roller (30), and the screening and feeding mechanism comprises a screen plate (35), a connecting belt (38), two second rollers (37), a turntable (17), a connecting rod (18), and a plurality of feeding boxes (39) fixed on the connecting belt (38). One end of the screen plate (35) and the two second rollers (37) are both rotatably connected in the grinding box (1), and the two turntables (17) are symmetrically rotatably connected to the outer wall of the grinding box (1). A mounting frame (10) and a connecting frame (11) are fixedly connected to the outer wall of the grinding box (1), and a mounting plate (50) is connected to the mounting frame (10).

2. The construction waste crushing and grading device according to claim 1, characterized in that: Two mutually meshing first gears (7) and second gears (12) are rotatably connected to the side wall of the crushing box (1), and the first gear (7) and the second gear (12) are coaxially fixed to the coarse crushing roller (29) and the fine crushing roller (30), respectively. A second pulley set (8) is connected between one of the first gears (7) and the first roller (22), and the magnetic roller (23) is arranged in the first roller (22) and is rotatably connected to the connecting frame (11).

3. The construction waste crushing and grading processing device according to claim 1, characterized in that: An adjustment assembly is provided between the mounting plate (50) and the connecting frame (11), the adjustment assembly comprising a first driving wheel (47), a second driving wheel (48), an idler wheel (49) and a driven wheel (52), the first driving wheel (47) and the second driving wheel (48) being coaxially fixed, the first driving wheel (47), the second driving wheel (48) and the idler wheel (49) being rotatably connected to the mounting plate (50), and the second driving wheel (48) being meshed with the idler wheel (49), the first driving wheel (47) and the idler wheel (49) being meshed with the driven wheel (52), the driven wheel (52) being rotatably connected to the connecting frame (11) and being coaxially fixed to the magnetic roller (23), a spline shaft being rotatably connected between the mounting frame (10) and the crushing box (1), the first driving wheel (47) and the second driving wheel (48) being coaxially slidable with the spline shaft, and a third pulley assembly (9) being connected between the first roller (22) and the spline shaft.

4. The construction waste crushing and grading device according to claim 3, characterized in that: The mounting plate (50) is symmetrically provided with mounting grooves, a connecting block (54) is fixedly connected to the mounting groove, a clamping block (56) is slidably connected to the mounting groove, one end of the clamping block (56) is fixedly connected to a round rod (53), and the round rod (53) slides through the connecting block (54), a second spring (55) is sleeved on the round rod (53), and the two ends of the second spring (55) are respectively fixedly connected to the clamping block (56) and the connecting block (54), a push block (51) is slidably connected to the mounting plate (50), and the push block (51) is fixedly connected to the round rod (53), and a plurality of clamping grooves (57) are symmetrically provided on the mounting frame (10), and the other end of the clamping block (56) extends out of the mounting groove and is inserted into the clamping groove (57).

5. The construction waste crushing and grading device according to claim 1, characterized in that: A first movable groove (20) is provided on the side wall of the crushing box (1), the other end of the sieve plate (35) is fixedly connected to a connecting shaft (19), and the connecting shaft (19) is movably connected in the first movable groove (20), the two ends of the connecting rod (18) are respectively rotatably connected to the turntable (17) and the connecting shaft (19), the two second rollers (37) are both rotatably connected in the crushing box (1), the connecting belt (38) is transmission-connected between the two second rollers (37), a first guide plate (36) is fixedly connected in the crushing box (1), and the connecting belt (38) passes through the first guide plate (36), and the first guide plate (36) is arranged below the sieve plate (35).

6. The construction waste crushing and grading device according to claim 5, characterized in that: A fifth pulley set (15) is connected between one of the fine grinding rollers (30) and the second roller (37), and a fourth pulley set (13) and a sixth pulley set (21) are connected between the other fine grinding roller (30) and the turntable (17) and the coarse grinding roller (29), respectively. An air outlet plate (41) is provided below the conveyor belt (40), and an air inlet (14) is provided on the side wall of the grinding box (1), and the air inlet (14) and the air outlet plate (41) are opposite to each other.

7. The construction waste crushing and grading device according to claim 2, characterized in that: A motor (5) is fixedly connected to the side wall of the crushing box (1), and a first pulley set (6) is connected between the output end of the motor (5) and another first gear (7).

8. The construction waste crushing and grading device according to claim 1, characterized in that: A second guide plate (42) is symmetrically provided in the crushing box (1), one end of the second guide plate (42) is rotatably connected to the crushing box (1), a second movable groove (28) is symmetrically provided on the side wall of the crushing box (1), a cylinder (24) is fixedly connected to the outer wall of the crushing box (1), a U-shaped frame (25) is fixedly connected to the output end of the cylinder (24), a movable frame (26) is fixedly connected to the U-shaped frame (25), the other end of the second guide plate (42) is fixedly connected to a movable shaft (27), and the movable shaft (27) is movably connected to the second movable groove (28) and the movable frame (26).

9. The construction waste crushing and grading device according to claim 8, characterized in that: A cavity is provided in the feed hopper (2), an electromagnet (31) is fixedly connected in the cavity, a metal ball (33) is provided in the cavity, a first spring (34) is fixedly connected between the metal ball (33) and the inner wall of the cavity, a metal block (32) is symmetrically fixed in the cavity, and the metal block (32) is electrically connected to the cylinder (24).

10. The construction waste crushing and grading processing device according to claim 8, characterized in that: A fourth guide plate (44), a fifth guide plate (45), a sixth guide plate (46) and two third guide plates (43) are fixedly connected in the pulverizing box (1), and the two ends of the third guide plate (43) respectively abut against the second guide plate (42) and the discharge port (16). The fourth guide plate (44) and the fifth guide plate (45) are both arranged above the fine pulverizing roller (30), and the sixth guide plate (46) is arranged below the fine pulverizing roller (30).

Images