Construction waste crusher

Abstract

The invention provides a construction waste crusher, and belongs to the technical field of engineering instruments. The problem that part of particles are still large after crushing of an existing construction waste crusher is solved. The construction waste crusher comprises a shell, the shell is provided with a feeding port, a mounting cavity and a discharging port, a first crushing device, a screening device, a second crushing device and a partition plate are arranged in the mounting cavity, the partition plate is used for dividing the mounting cavity into a first cavity and a second cavity, and the screening device is rotationally connected into the mounting cavity through a first rotating shaft; the screening device is arranged below the first crushing device, the second chamber is used for installing the second crushing device, the bottom end and the top end of the second chamber are both communicated with the first chamber, the discharging port is formed in the first chamber, the screening device is provided with a sealing cover, and the sealing cover is used for sealing a connecting port between the second chamber and the upper portion of the first chamber. The construction waste crushing device has the advantages that construction waste can be subjected to secondary crushing, particle size uniformity is guaranteed, and meanwhile metal particles can be removed.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a construction waste crusher. Background Art

[0002] Construction waste crusher is a kind of mechanical equipment specially designed for processing construction waste, such as discarded concrete lumps, bricks, tiles, scrap steel bars and other building materials. These machines convert large pieces of construction waste into smaller particles or powders through the process of crushing or grinding, so as to facilitate subsequent recycling, such as used as recycled aggregate for road foundation, brick making, concrete mixing, etc., to achieve the recycling of resources.

[0003] Since recycled aggregates and the like have requirements for particle size, some particles in existing crushers are still too large and do not meet the requirements after one crushing. The existing solution is to set a filter in the middle to filter the corresponding particle size, but this solution has the following problems: the filter needs to be cleaned regularly after long-term use, because large particles clog the filter, which will cause the efficiency of the filter to gradually decrease. At the same time, since there are many particles accumulated on the filter, it is very troublesome to clean it. After taking it out, it needs to be crushed again, but at this time the filter is pulled out, and another filter needs to be replaced and installed or used again with other crushers, which is more troublesome. Summary of the invention

[0004] The purpose of the present invention is to provide a construction waste crusher in view of the above problems existing in the prior art.

[0005] The objectives of the present invention can be achieved through the following technical solutions: A construction waste crusher, characterized in that it includes a shell, the shell is provided with a feed port, an installation cavity and a discharge port, the installation cavity is provided with a first crushing device, a screening device, a second crushing device and a partition plate, the first crushing device is arranged at the feed port, the partition plate is used to divide the installation cavity into a first chamber and a second chamber, the screening device is rotatably connected in the installation cavity through a first rotating shaft, the screening device is arranged below the first crushing device, the second chamber is used for the installation of the second crushing device, the bottom and top ends of the second chamber are both connected to the first chamber, the discharge port is arranged in the first chamber, the screening device is provided with a sealing cover, and the sealing cover is used to seal the connection port between the second chamber and the top of the first chamber.

[0006] The working principle of the present invention is as follows: the construction waste is thrown into the installation cavity from the feed port, and is first crushed by the first crushing device. After the crushing, the particles fall onto the screening device for screening. The particles that meet the requirements fall to the discharge port and leave the shell. After the particles that are too large are collected for a period of time, the screening device rotates so that the large particles on the screening device fall from the upper connection port to the second crushing device. The large particles are crushed for the second time by the second crushing device so that the particle size meets the requirements. The particles after the second crushing leave the second chamber from the lower connection port, enter the first chamber, and leave from the discharge port, ensuring that all particles meet the size requirements and there are no particles that are too large.

[0007] In the above-mentioned construction waste crusher, the screening device includes a supporting frame and a filter screen, the supporting frame is provided with a accommodating cavity for installing the filter screen, a plurality of springs are provided on the bottom surface of the filter screen, the springs are arranged in the accommodating cavity, a vibration device is provided on the side of the filter screen close to the first rotating shaft, the vibration device is used to vibrate the filter screen, a fixing groove is provided in the accommodating cavity, the fixing groove is used to fix the filter screen, and a folding expansion strip is provided at the connection between the filter screen and the supporting frame.

[0008] In the above-mentioned construction waste crusher, the first rotating shaft includes a connecting shell and a rotating shaft, the connecting shell is sleeved on the rotating shaft, the connecting shell is fixedly connected to the supporting frame, the connecting shell is provided with a make way through hole connected to the accommodating cavity, and the vibration device is arranged on the rotating shaft.

[0009] In the above-mentioned construction waste crusher, the vibration device includes a plurality of protrusions, which are arranged in a stepped manner on the rotating shaft. The protrusions are used to collide with the filter screen. A collision block is arranged on one side of the filter screen close to the protrusion, and the collision block and the protrusion are both arranged in an arc shape.

[0010] In the above-mentioned construction waste crusher, an electromagnetic body is arranged in the installation cavity, a suction plate is arranged on the support frame, the electromagnetic body is used to adsorb the suction plate after power is supplied, the connecting shell is provided with a coil spring, the coil spring is used to bring the suction plate close to the electromagnetic body, the sealing cover includes an extension part and a sealing part, the extension part is used to extend the support frame into the second chamber, and the sealing part is used to seal the upper connection port.

[0011] In the above-mentioned construction waste crusher, the first crushing device includes a first driving motor, two crushing wheels and two gears. The first driving motor is used to drive one of the crushing wheels to rotate. The two gears are respectively arranged on the two crushing wheels. The gears are used for transmission. A pulley is arranged on one side of one of the crushing wheels, and the pulley drives the rotating shaft to rotate through a belt.

[0012] In the above-mentioned construction waste crusher, the second crushing device adopts a cone crusher.

[0013] In the above-mentioned construction waste crusher, a magnetic barrel is also provided in the accommodating chamber, and the magnetic barrel is used to absorb the metal particles crushed by the first crushing device and the second crushing device. The magnetic barrel includes a second rotating shaft and a plurality of magnetic sticks arranged on the second rotating shaft, and the magnetic sticks are C-shaped.

[0014] In the above-mentioned construction waste crusher, a maintenance window is provided on one side of the shell, and the magnetic suction rod includes two connecting rods and a magnetic suction rod, one end of the connecting rod is connected to the second rotating shaft, and the other end of the connecting rod is detachably connected to the magnetic suction rod.

[0015] In the above-mentioned construction waste crusher, a guiding inclined surface is arranged at the bottom of the installation cavity.

[0016] Compared with the prior art, the present invention has the advantages of being able to secondary crush construction waste, ensuring uniform particle size, and removing metal particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the screening device of the present invention.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the screening device of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the rotating shaft of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the magnetic suction bucket of the present invention.

[0024] In the figure, 1, shell; 2, feed inlet; 3, installation cavity; 4, discharge port; 5, first crushing device; 6, screening device; 7, second crushing device; 8, partition plate; 9, first chamber; 10, second chamber; 11, sealing cover; 12, supporting frame; 13, filter screen; 14, accommodating chamber; 15, spring; 16, vibration device; 17, folding expansion sheet; 18, connecting shell; 19, rotating shaft; 20, giving way through hole; 21, bump; 22, collision block; 23, electromagnetic body; 24, suction plate; 25, extension part; 26, sealing part; 27, first driving motor; 28, crushing wheel; 29, gear; 30, pulley; 31, belt; 32, magnetic suction barrel; 33, second rotating shaft; 34, magnetic suction stick; 35, connecting rod; 36, magnetic suction rod; 37, maintenance window. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] like Figure 1-Figure 7 As shown, the construction waste crusher includes a shell 1, which is provided with a feed port 2, a mounting chamber 3 and a discharge port 4. The mounting chamber 3 is provided with a first crushing device 5, a screening device 6, a second crushing device 7 and a partition plate 8. The first crushing device 5 is arranged at the feed port 2, and the partition plate 8 is used to divide the mounting chamber 3 into a first chamber 9 and a second chamber 10. The screening device 6 is rotatably connected in the mounting chamber 3 through a first rotating shaft. The screening device 6 is arranged below the first crushing device 5. The second chamber 10 is used for installing the second crushing device 7. The bottom and top ends of the second chamber 10 are both connected to the first chamber 9. The discharge port 4 is arranged in the first chamber 9. The screening device 6 is provided with a sealing cover 11, and the sealing cover 11 is used to seal the connection between the second chamber 10 and the top of the first chamber 9.

[0027] In further detail, the screening device 6 includes a supporting frame 12 and a filter screen 13. The supporting frame 12 is provided with a accommodating cavity 14 for installing the filter screen 13. A plurality of springs 15 are provided on the bottom surface of the filter screen 13. The springs 15 are provided in the accommodating cavity 14. A vibration device 16 is provided on the side of the filter screen 13 close to the first rotating shaft. The vibration device 16 is used to vibrate the filter screen 13. A fixing groove is provided in the accommodating cavity 14. The fixing groove is used to fix the filter screen 13. A folding expansion sheet 17 is provided at the connection between the filter screen 13 and the supporting frame 12.

[0028] During the research process, it was found that after long-term use, multiple large particles will be stuck in the filter holes of the filter screen 13, and the large particles will not fall as the screening device 6 rotates, making the effect of the filter screen 13 worse and worse. Therefore, the present application first fixes the two ends of the filter screen 13 in the fixed groove so that the overall position of the filter screen 13 will not move. At the same time, multiple springs 15 are arranged at the bottom and the top, so that the filter screen 13 can be shaken in a limited position, thereby reducing the situation where large particles are stuck in the filter holes. At the same time, the filter screen 13 is regularly vibrated by the vibration device 16, which can also have the effect of shaking the large particles out of the filter holes. However, since the filter screen 13 needs to vibrate up and down, there is a gap between the filter screen 13 and the support frame 12, which will cause particles to enter the accommodating chamber 14. Long-term work affects the internal parts, etc. Therefore, a folding expansion strip 17 is arranged at the connecting gap between the two. The folding expansion strip 17 can expand or shrink with the vibration of the filter screen 13 to ensure that the particles do not enter the accommodating chamber 14.

[0029] In further detail, the first rotating shaft includes a connecting shell 18 and a rotating shaft 19 . The connecting shell 18 is sleeved on the rotating shaft 19 . The connecting shell 18 is fixedly connected to the supporting frame 12 . The connecting shell 18 is provided with a make way hole 20 connected to the accommodating cavity 14 . The vibration device 16 is arranged on the rotating shaft 19 .

[0030] The rotating shaft is divided into a connecting shell 18 and a rotating shaft 19. The connecting shell 18 is used to control the supporting frame and, at the same time, isolate the particles from the rotating shaft to prevent the particles from entering the rotating shaft 19 and affecting the operation of the rotating shaft 19. The rotating shaft 19 is mainly set to cooperate with the vibration device 16.

[0031] In further detail, the vibration device 16 includes a plurality of protrusions 21, which are arranged in a stepped manner on the rotating shaft 19. The protrusions 21 are used to collide with the filter screen 13. A collision block 22 is arranged on the side of the filter screen 13 close to the protrusion 21. The collision block 22 and the protrusion 21 are both arranged in an arc shape.

[0032] The protrusions 21 are all located in the yielding through holes 20, that is, the rotation of the protrusions 21 will not affect the connecting shell 18. The protrusions 21 are arranged in a stepped shape so that the vibration device 16 can collide and vibrate different positions of the filter screen 13, ensuring that the filter screen 13 at different positions can have strong vibrations, thereby shaking out large particles. At the same time, the protrusions 21 and the collision blocks 22 are arranged in a circular arc shape to reduce the collision intensity between the two and ensure the vibration effect.

[0033] To elaborate further, an electromagnetic body 23 is provided in the installation cavity 3, a suction plate 24 is provided on the support frame 12, the electromagnetic body 23 is used to adsorb the suction plate 24 after power is supplied, the connecting shell 18 body 1 is provided with a coil spring, the coil spring is used to bring the suction plate 24 close to the electromagnetic body 23, the sealing cover 11 includes an extension portion 25 and a sealing portion 26, the extension portion 25 is used to extend the support frame 12 into the second chamber 10, and the sealing portion 26 is used to seal the upper connection port.

[0034] This setting is used to control the opening and closing of the screening device 6 through an electromagnet. When the electromagnetic body 23 is energized, the suction plate 24 will approach the electromagnetic body 23 and be adsorbed. By periodically turning off the power of the electromagnetic body 23, the screening device 6 will rotate downward under the action of gravity, so that the screening device 6 is tilted, and large particles are guided to the second chamber 10. By setting the extension part 25, it can be ensured that there is no gap between the screening device 6 and the partition plate 8, and the particles will not fall from the gap into the first chamber 9 below. After most of the large particles enter the second chamber 10, the support frame will slowly return to the initial position under the action of the coil spring, and the power of the electromagnetic body 23 will be restarted to ensure that the support frame can return to the initial position. After returning to the initial position, the sealing part 26 will re-seal the upper connection port to reduce the entry of qualified particles into the second chamber 10.

[0035] In further detail, the first crushing device 5 includes a first driving motor 27, two crushing wheels 28 and two gears 29. The first driving motor 27 is used to drive one of the crushing wheels 28 to rotate. The two gears 29 are respectively arranged on the two crushing wheels 28. The gears 29 are used for transmission. A pulley 30 is arranged on one side of one of the crushing wheels 28, and the pulley 30 drives the rotating shaft 19 to rotate through a belt 31.

[0036] The first crushing device 5 adopts the existing technology, and drives a crushing wheel 28 to rotate through the first drive motor 27, and the two gears 29 are engaged, so that the two crushing wheels 28 can rotate synchronously towards each other, achieving the effect of the first crushing, and then the belt 31 drives the rotating shaft 19 to rotate synchronously, so that the vibration device 16 vibrates the filter screen 13. The advantage of this arrangement is that the vibration device 16 and the first crushing device 5 are started and closed synchronously, which increases the service life of the vibration device 16. The second crushing device 7 also adopts the existing technology and does not make other improvements. It only needs to be able to achieve secondary crushing. In this embodiment, a cone crusher is used. The cone crusher is selected as the second crushing structure because the cone crusher has a long service life and excellent particle shape, which prevents poor particle shape due to secondary crushing.

[0037] In further detail, a magnetic suction barrel 32 is also provided in the accommodating chamber 14, and the magnetic suction barrel 32 is used to absorb the metal particles crushed by the first crushing device 5 and the second crushing device 7. The magnetic suction barrel 32 includes a second rotating shaft 33 and a plurality of magnetic suction rods 34 arranged on the second rotating shaft 33, and the magnetic suction rods 34 are C-shaped.

[0038] The magnetic suction barrel 32 is used to absorb the crushed metal particles. By setting up a plurality of magnetic suction rods 34, the metal particles can be continuously absorbed during the rotation process, and the particles coming out of the second chamber 10 can be driven to move to the discharge port 4. At the same time, this setting reduces the overall cost, the maintenance cost and the difficulty of collecting metal particles.

[0039] In further detail, a maintenance window 37 is provided on one side of the housing 1 , and the magnetic stick 34 includes two connecting rods 35 and a magnetic rod 36 , one end of the connecting rod 35 is connected to the second rotating shaft 33 , and the other end of the connecting rod 35 is detachably connected to the magnetic rod 36 .

[0040] A maintenance window is provided for facilitating maintenance and collecting metal particles on the magnetic stick 34 . The detachable connection method can quickly disassemble and assemble the magnetic stick 34 , facilitate collecting metal particles, and also facilitate maintenance of the magnetic stick 34 .

[0041] In further detail, a guiding slope is provided at the bottom of the installation cavity 3 , and the guide slope is used to ensure that the particles can move toward the discharge port 4 .

[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0043] Although a large number of terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A construction waste crusher, characterized in that: The invention comprises a housing (1), wherein the housing (1) is provided with a feed port (2), a mounting chamber (3) and a discharge port (4), wherein a first crushing device (5), a screening device (6), a second crushing device (7) and a partition plate (8) are provided in the mounting chamber (3), wherein the first crushing device (5) is arranged at the feed port (2), the partition plate (8) is used to divide the mounting chamber (3) into a first chamber (9) and a second chamber (10), and the screening device (6) is rotatably connected to the mounting chamber (3) via a first rotating shaft. In the installation cavity (3), the screening device (6) is arranged below the first crushing device (5); the second chamber (10) is used for installing the second crushing device (7); the bottom and top ends of the second chamber (10) are both connected to the first chamber (9); the discharge port (4) is arranged in the first chamber (9); the screening device (6) is provided with a sealing cover (11), and the sealing cover (11) is used to seal the connection port between the second chamber (10) and the top of the first chamber (9).

2. A construction waste crusher according to claim 1, characterized in that: The screening device (6) comprises a supporting frame (12) and a filter screen (13); the supporting frame (12) is provided with a receiving chamber (14) for installing the filter screen (13); a plurality of springs (15) are provided on the bottom surface of the filter screen (13); the springs (15) are arranged in the receiving chamber (14); a vibration device (16) is provided on the side of the filter screen (13) close to the first rotating shaft; the vibration device (16) is used to vibrate the filter screen (13); a fixing groove is provided in the receiving chamber (14); the fixing groove is used to fix the filter screen (13); and a folding expansion strip (17) is provided at the connection between the filter screen (13) and the supporting frame (12).

3. A construction waste crusher according to claim 2, characterized in that: The first rotating shaft comprises a connecting shell (18) and a rotating shaft (19); the connecting shell (18) is sleeved on the rotating shaft (19); the connecting shell (18) is fixedly connected to the supporting frame (12); the connecting shell (18) is provided with a clearance through hole (20) communicating with the accommodating cavity (14); and the vibration device (16) is arranged on the rotating shaft (19).

4. A construction waste crusher according to claim 3, characterized in that: The vibration device (16) comprises a plurality of protrusions (21), the protrusions (21) being arranged on the rotating shaft (19) in a stepped manner, the protrusions (21) being used to collide with the filter screen (13), a collision block (22) being arranged on one side of the filter screen (13) close to the protrusions (21), and the collision block (22) and the protrusions (21) being arranged in an arc shape.

5. A construction waste crusher according to claim 1, characterized in that: An electromagnetic body (23) is arranged in the installation cavity (3), a suction plate (24) is arranged on the support frame (12), the electromagnetic body (23) is used to adsorb the suction plate (24) after power is supplied, the connection shell (18) body (1) is provided with a coil spring, the coil spring is used to bring the suction plate (24) close to the electromagnetic body (23), the sealing cover (11) comprises an extension part (25) and a sealing part (26), the extension part (25) is used to extend the support frame (12) into the second chamber (10), and the sealing part (26) is used to seal the upper connection port.

6. A construction waste crusher according to claim 1, characterized in that: The first pulverizing device (5) comprises a first driving motor (27), two crushing wheels (28) and two gears (29), wherein the first driving motor (27) is used to drive one of the crushing wheels (28) to rotate, the two gears (29) are respectively arranged on the two crushing wheels (28), and the gears (29) are used for transmission, wherein a pulley (30) is arranged on one side of one of the crushing wheels (28), and the pulley (30) drives the rotating shaft (19) to rotate via a belt (31).

7. A construction waste crusher according to claim 1, characterized in that: The second pulverizing device (7) is a cone crusher.

8. The construction waste crusher according to claim 1, characterized in that: A magnetic suction barrel (32) is also arranged in the accommodating chamber (14), and the magnetic suction barrel (32) is used to absorb the metal particles crushed by the first crushing device (5) and the second crushing device (7). The magnetic suction barrel (32) comprises a second rotating shaft (33) and a plurality of magnetic suction rods (34) arranged on the second rotating shaft (33), and the magnetic suction rods (34) are C-shaped.

9. A construction waste crusher according to claim 8, characterized in that: A maintenance window (37) is provided on one side of the housing (1); the magnetic attraction rod (34) comprises two connecting rods (35) and a magnetic attraction rod (36); one end of the connecting rod (35) is connected to the second rotating shaft (33); the other end of the connecting rod (35) is detachably connected to the magnetic attraction rod (36).

10. The construction waste crusher according to claim 1, characterized in that: A guiding inclined surface is arranged at the bottom of the installation cavity (3).

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