CN118403720B - A building rubbish breaker for building engineering construction - Google Patents

Abstract

The present invention relates to the technical field of construction waste treatment, and specifically discloses a construction waste crushing device for construction engineering construction, including a chassis, a dust collection component, a crushing mechanism, a screening component, and a driving component. The construction waste is pre-crushed by the pre-crushing component, so that the large volume of construction waste is converted into small volume of construction waste after the pre-crushing process, and then the small volume of construction waste is secondary crushed by the secondary crushing component inside the chassis, which reduces the wear of the secondary crushing component and increases the service life of the secondary crushing component, and improves the crushing efficiency of the construction waste, reduces energy consumption and operation risks, and furthermore, the pre-crushing component, the secondary crushing component, and the screening component in the crushing mechanism are synchronously driven by a single motor in the driving component, which improves the construction waste crushing efficiency while also achieving the effects of simplified structure, energy saving, and reduced equipment cost and operation cost.

Description

A construction waste crushing device for construction engineering

Technical Field

The invention relates to the technical field of construction waste treatment, and in particular to a construction waste crushing device used in construction engineering.

Background Art

Construction waste refers to the general term for slag, waste concrete, waste bricks and other wastes generated by people in the production activities of the construction industry such as demolition, construction, decoration and repair. With the acceleration of industrialization and urbanization, the construction industry has also developed rapidly, and the amount of construction waste generated has increased day by day. The amount of construction waste in China has accounted for more than 1/3 of the total urban waste. With the improvement of environmental protection and energy-saving awareness, the treatment and reuse of construction waste is of great significance. Among them, crushing construction waste to produce concrete and unburned bricks is an effective way to recycle and reuse construction waste.

When the existing construction waste crushing device is in use, the construction waste is usually sent directly into the crushing box and crushed by the crushing tool. The construction waste will cause impact and wear on the crushing tool, which will shorten the service life of the crushing tool. In addition, when the crushing tool is working for a long time, a large amount of heat will be generated due to friction and impact, which will cause the temperature of the tool to rise. The high temperature will accelerate the wear and aging of the tool and reduce its service life. For this reason, we propose a construction waste crushing device for construction engineering construction.

Summary of the invention

In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a construction waste crushing device for construction engineering, in order to solve the above-mentioned technical defects.

To achieve the above objectives, the present invention is implemented through the following technical solutions: a construction waste crushing device for construction engineering, comprising:

A machine box, a crushing box is fixedly arranged on the left side of the top of the machine box, and a feed pipe is also fixedly arranged on the top of the crushing box;

A dust collection component is provided inside the feed pipe, and a dust collection box is fixedly provided on one side of the crushing box;

A crushing mechanism, the crushing mechanism comprising a pre-crushing assembly and a secondary crushing assembly, the pre-crushing assembly is arranged inside the crushing box, and the secondary crushing assembly is arranged on the left side inside the box;

A screening component, wherein a screening box is fixedly arranged on the right side inside the chassis, and a screening component is arranged inside the screening box;

A drive assembly, wherein a drive frame is fixedly arranged on the front of the chassis, and a drive assembly is arranged inside the drive frame;

The pre-crushing assembly includes a rotor and a hammer head, a crushing chamber is arranged inside the crushing box, and a rotor is rotatably arranged inside the crushing chamber, and a plurality of hammer heads are movably arranged on the surface of the rotor, the secondary crushing assembly includes a crushing frame, a crushing frame is fixedly arranged on the left side inside the case, and two crushing knife rollers are rotatably arranged inside the crushing frame, the top and bottom of the crushing frame are both provided with openings, and the interior of the crushing frame is connected with the interior of the crushing box, a conveying frame is also fixedly arranged inside the case, and a material guide frame is fixedly arranged on one side of the conveying frame, and one side of the material guide frame extends to the interior of the screening box.

Furthermore, the dust suction assembly includes a mounting block and a material blocking rod, a mounting block is fixedly provided on one side of the inner wall of the feed pipe, and a plurality of material blocking rods are rotatably provided on one side of the mounting block, and a dust suction port is provided on one side of the plurality of material blocking rods.

Furthermore, a dust suction pipe is fixedly provided on one side of the mounting block, and one end of the dust suction pipe is connected to the interior of the dust collecting box, and the interior of the dust suction pipe is connected to the interior of the dust suction port on one side of the plurality of material blocking rods.

Furthermore, the screening component includes a magnetic separation frame, a screen is fixedly arranged at the lower part of the screening box, and a baffle is movably arranged at the bottom of the screen, and a magnetic separation frame is rotatably arranged inside the screening box, and an electromagnet is arranged inside the magnetic separation frame.

Furthermore, first servo electric cylinders are fixedly arranged on both sides of the screening box, and the driving ends of the two first servo electric cylinders are fixedly connected to the two sides of the baffle respectively. A discharge pipe is fixedly arranged at the bottom of the screening box, and the interior of the discharge pipe is connected to the interior of the screening box.

Furthermore, a cooling frame is movably arranged above the inside of the crushing frame, and a cooling port is arranged at the bottom of the cooling frame. A second servo electric cylinder is fixedly arranged on one side of the crushing frame, and a driving end of the second servo electric cylinder is fixedly connected to the top of the cooling frame. A cooling duct is also arranged on one side of the cooling frame, and one end of the cooling duct extends to the top of the chassis.

Furthermore, the driving assembly includes a driving motor, a driving motor is fixedly arranged at the bottom of the chassis, and a double pulley is fixedly arranged at one end of the output shaft of the driving motor, a first pulley is fixedly arranged at one end of the rotor and one end of the crushing knife roller located on the left, and the surfaces of the two first pulleys are connected by a belt transmission, a transmission gear is fixedly arranged at one end of the two crushing knife rollers, and the surfaces of the two transmission gears are meshed for transmission, and a second pulley is also fixedly arranged at one end of the crushing knife roller located on the right, and the surface of the second pulley is connected to the surface of the double pulley by a belt transmission.

Furthermore, a transmission rod is rotatably provided at the bottom of the chassis, and a third pulley is fixedly provided at one end of the transmission rod, and the surface of the third pulley is connected to the surface of the double pulley by belt transmission, a rotating rod is rotatably provided on one side of the screening box, and a bevel gear is fixedly provided at one end of the rotating rod and the other end of the transmission rod, and the surfaces of the two bevel gears are meshed with each other, and a fourth pulley is fixedly provided at one end of the magnetic separation frame and one end of the rotating rod, and the surfaces of the two fourth pulleys are connected by belt transmission.

The beneficial effects achieved by the present invention using the above structure are as follows:

1. In the present invention, the construction waste sent into the crushing box is pre-crushed by the pre-crushing component, so that the large volume of construction waste is turned into small volume of construction waste after the pre-crushing, and then the secondary crushing component inside the box is used to perform secondary crushing on the small volume of construction waste, on the one hand, the wear of the secondary crushing component is reduced and the service life of the secondary crushing component is increased, and on the other hand, the crushing efficiency of the construction waste is improved, and the energy consumption and operation risk are reduced; then the construction waste after the secondary crushing is sent into the inside of the screening box, and the metal waste and the construction waste crushed material in the construction waste are screened and processed inside the screening box, so as to achieve the separation of the metal waste and the construction waste crushed material, and then the collected metal waste is reused and recycled, so as to reduce the waste of resources and help to achieve more sustainable construction waste treatment; in addition, the pre-crushing component, the secondary crushing component and the screening component in the crushing mechanism are synchronously driven by the single motor in the driving component, so as to improve the construction waste crushing efficiency while achieving the effects of simplified structure, energy saving, and reduced equipment cost and operation cost.

2. In the present invention, when construction waste is fed into the crushing box through the feed pipe, the construction waste pushes the blocking rod to one side, and the blocking rod is used to buffer and block the construction waste, thereby reducing the impact force of the construction waste on the inside of the crushing box. When the construction waste is crushed inside the crushing box, the dust generated by the crushing is sucked away through the suction port on one side of the blocking rod in cooperation with the suction pipe.

3. In the present invention, when two crushing rollers are used to crush construction waste, the cooling frame is controlled by the driving end of the second servo electric cylinder to move downward inside the crushing frame until the cooling port at the bottom of the cooling frame is on the upper surface of the two crushing rollers, and then cooling gas is introduced into the cooling frame through the cooling duct, and the surfaces of the two crushing rollers are cooled by the cooling gas. By cooling the crushing rollers, the temperature of the crushing rollers can be effectively reduced, wear can be reduced, and deformation of the cutter can be prevented, thereby extending the service life of the crushing rollers.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

FIG1 is a schematic diagram of a structure of a construction waste crushing device for construction engineering construction according to an embodiment of the present invention;

FIG2 is a schematic diagram of a feed pipe and a material blocking rod structure according to an embodiment of the present invention;

3 is a schematic diagram of a material blocking rod and a mounting block structure according to an embodiment of the present invention;

FIG4 is a schematic diagram of a crushing frame and a crushing roller structure according to an embodiment of the present invention;

5 is a schematic diagram of a conveying frame and a screening box structure according to an embodiment of the present invention;

FIG6 is a schematic diagram of a magnetic separation frame and a discharge pipe structure according to an embodiment of the present invention;

FIG7 is a schematic diagram of a driving assembly structure according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the structure of the rotating rod and the transmission rod according to an embodiment of the present invention.

In the figure, 1, chassis; 2, crushing box; 3, feed pipe; 4, dust collecting box; 5, screening box; 6, driving frame; 7, mounting block; 8, material blocking rod; 9, dust suction port; 10, dust suction pipe; 11, rotor; 12, hammer; 13, crushing frame; 14, crushing knife roller; 15, conveying frame; 16, material guide frame; 17, magnetic separation frame; 18, screen; 19, baffle; 20, first servo electric cylinder; 21, discharge pipe; 22, cooling frame; 23, second servo electric cylinder; 24, cooling duct; 25, driving motor; 26, double pulley; 27, first pulley; 28, transmission gear; 29, second pulley; 30, transmission rod; 31, third pulley; 32, rotating rod; 33, bevel gear; 34, fourth pulley.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Embodiment 1, referring to FIGS. 1 to 8 , a construction waste crushing device for construction engineering construction comprises:

A chassis 1, a crushing box 2 is fixedly arranged on the left side of the top of the chassis 1, and a feeding pipe 3 is also fixedly arranged on the top of the crushing box 2, through which construction waste is fed into the crushing box 2, and then the construction waste is pre-crushed inside the crushing box 2, and then the pre-crushed construction waste is fed into the chassis 1 for further crushing, thereby significantly improving the crushing effect of the construction waste, and by crushing the construction waste in advance and then crushing it with a crushing tool, the impact and wear of the tool can be reduced, the tool load can be optimized, the crushing efficiency can be improved, the energy consumption and operation risks can be reduced, thereby effectively improving the service life of the tool, and achieving higher efficiency and sustainability in the construction waste crushing process.

A dust collection component is provided inside the feed pipe 3, and a dust collecting box 4 is fixedly provided on one side of the crushing box 2. The dust collection component is used to extract the dust generated when the construction waste is pre-crushed in the crushing box 2 to prevent the dust in the crushing box 2 from escaping through the feed pipe 3, thereby reducing the pollution of the air environment around the crushing device.

The crushing mechanism includes a pre-crushing component and a secondary crushing component. The pre-crushing component is arranged inside the crushing box 2, and the secondary crushing component is arranged on the left side inside the chassis 1. The pre-crushing component is used to pre-crush the construction waste sent into the crushing box 2, so that the large volume of construction waste can be turned into small volume of construction waste after pre-crushing. Then, the secondary crushing component inside the chassis 1 is used to perform secondary crushing on the small volume of construction waste. On the one hand, the wear of the secondary crushing component is reduced and the service life of the secondary crushing component is increased. On the other hand, the crushing efficiency of the construction waste is improved, and the energy consumption and operation risks are reduced.

A screening component is provided on the right side of the chassis 1, and a screening box 5 is provided inside the screening box 5. The screening component is used to screen the crushed construction waste in the screening box 5 for metal waste, and the collected metal waste is reused and recycled, thereby reducing resource waste and contributing to more sustainable construction waste treatment.

A driving component is fixedly provided on the front of the chassis 1, and a driving frame 6 is provided inside the driving frame 6. The driving component synchronously drives the pre-crushing component, the secondary crushing component and the screening component in the crushing mechanism respectively, thereby improving the efficiency of the crushing and processing of construction waste and achieving the effects of simplified structure, energy saving, and reduced equipment cost and operating cost.

It should be noted that in the present invention, the construction waste sent to the crushing box 2 is pre-crushed by the pre-crushing component, so that the large volume of construction waste is turned into small volume of construction waste after the pre-crushing treatment, and then the secondary crushing component inside the chassis 1 is used to perform secondary crushing on the small volume of construction waste. On the one hand, the wear of the secondary crushing component is reduced and the service life of the secondary crushing component is increased, and on the other hand, the crushing efficiency of the construction waste is improved, and energy consumption and operation risks are reduced; then the construction waste after the secondary crushing is sent to the inside of the screening box 5, and the metal waste and the construction waste crushed material in the construction waste are screened and processed inside the screening box 5 to achieve separation of the metal waste and the construction waste crushed material, and then the collected metal waste is reused and recycled, reducing resource waste and contributing to more sustainable construction waste treatment; in addition, the single motor in the driving component is used to synchronously drive the pre-crushing component, the secondary crushing component and the screening component in the crushing mechanism, which not only improves the construction waste crushing efficiency but also achieves the effects of structural simplification, energy saving, and reducing equipment costs and operating costs.

As a further explanation of the scheme in the present invention, the dust suction component includes a mounting block 7 and a material blocking rod 8. A mounting block 7 is fixedly provided on one side of the inner wall of the feed pipe 3, and a plurality of material blocking rods 8 are rotatably provided on one side of the mounting block 7. A dust suction port 9 is provided on one side of the plurality of material blocking rods 8. A dust suction pipe 10 is fixedly provided on one side of the mounting block 7, and one end of the dust suction pipe 10 is communicated with the interior of the dust collecting box 4, and the interior of the dust suction pipe 10 is communicated with the interior of the dust suction port 9 on the side of the plurality of material blocking rods 8, wherein a dust suction pump is provided inside the dust collecting box 4, and the suction end of the dust suction pump is communicated with one end of the dust suction pipe 10, and the plurality of material blocking rods 8 are connected to the dust collecting box 4. One end of the material rod 8 is elastically connected to the inside of the mounting block 7 by a torsion spring. When construction waste is fed into the crushing box 2 through the feed pipe 3, the construction waste pushes the material blocking rod 8 to one side, and the material blocking rod 8 is used to buffer and block the construction waste, thereby reducing the impact force of the construction waste on the inside of the crushing box 2. When the construction waste is crushed inside the crushing box 2, the dust generated by the crushing is vacuumed through the dust suction port 9 on one side of the material blocking rod 8 and the dust suction pipe 10. When the material blocking rod 8 is not pushed by the construction waste, the material blocking rod 8 is reset on one side of the mounting block 7 under the action of the torsion spring.

Furthermore, the pre-crushing assembly includes a rotor 11 and a hammer 12 . A crushing chamber is provided inside the crushing box 2 , and the rotor 11 is rotatably provided inside the crushing chamber, and a plurality of hammers 12 are movably provided on the surface of the rotor 11 .

The secondary crushing assembly includes a crushing frame 13, which is fixedly arranged on the left side inside the chassis 1, and two crushing rollers 14 are rotatably arranged inside the crushing frame 13. The top and bottom of the crushing frame 13 are both provided with openings, and the interior of the crushing frame 13 is connected with the interior of the crushing box 2.

A conveying frame 15 is fixedly disposed inside the chassis 1 , and a material guide frame 16 is fixedly disposed on one side of the conveying frame 15 , and one side of the material guide frame 16 extends to the inside of the screening box 5 .

It should be noted that after the construction waste is fed into the crushing box 2 through the feed pipe 3, the rotor 11 is used to drive the hammer 12 to rotate inside the crushing chamber. As the rotor rotates, the hammer hits the construction waste at a relatively low speed, causing impact and crushing. This low-speed impact method can not only achieve a better crushing effect, but also has a small impact on the energy consumption of the equipment and the wear of the tool.

Then, the crushed construction waste falls into the crushing frame 13, and two relatively rotating crushing rollers 14 are used inside the crushing frame 13 to perform secondary crushing on the construction waste, which can reduce the impact and wear of the crushing rollers 14, optimize the tool load, improve the crushing efficiency, reduce energy consumption and operation risks, and thus effectively increase the service life of the crushing rollers 14;

Finally, the construction waste after secondary crushing from the crushing frame 13 falls onto the conveying frame 15, and the conveying frame 15 is used to convey the construction waste through the guide frame 16 into the screening box 5 for further processing.

Embodiment 2. This embodiment specifically discloses the specific structure of the screening component in the above-mentioned embodiment 1. The screening component includes a magnetic separation frame 17. A screen 18 is fixedly provided at the lower part of the screening box 5, and a baffle 19 is movably provided at the bottom of the screen 18. The screening box 5 is rotatably provided with a magnetic separation frame 17, and an electromagnet is provided inside the magnetic separation frame 17. First servo electric cylinders 20 are fixedly provided on both sides of the screening box 5, and the driving ends of the two first servo electric cylinders 20 are respectively fixedly connected to the two sides of the baffle 19. A discharge pipe 21 is fixedly provided at the bottom of the screening box 5, and the interior of the discharge pipe 21 is connected to the interior of the screening box 5.

It should be noted that when metal waste is screened from crushed construction waste, the electromagnet inside the magnetic separation frame 17 is turned on to adsorb the metal waste in the construction waste. Then, the baffle 19 is controlled to slide to one side through the driving end of the first servo electric cylinder 20, and the construction waste in the screening box 5 is sent out through the discharge pipe 21, thereby realizing efficient and energy-saving treatment of construction waste from construction projects.

Furthermore, a cooling frame 22 is movably arranged above the inside of the crushing frame 13, and a cooling port is arranged at the bottom of the cooling frame 22. A second servo electric cylinder 23 is fixedly arranged on one side of the crushing frame 13, and a driving end of the second servo electric cylinder 23 is fixedly connected to the top of the cooling frame 22. A cooling duct 24 is also arranged on one side of the cooling frame 22, and one end of the cooling duct 24 extends to the top of the chassis 1.

It should be noted that when the two crushing rollers 14 are used to crush the construction waste, the cooling frame 22 is controlled by the driving end of the second servo electric cylinder 23 to move downward inside the crushing frame 13 until the cooling port at the bottom of the cooling frame 22 is on the upper surface of the two crushing rollers 14, and then cooling gas is introduced into the cooling frame 22 through the cooling duct 24, and the cooling gas is used to cool the surface of the two crushing rollers 14. By cooling the crushing roller 14, the temperature of the crushing roller 14 can be effectively reduced, wear can be reduced, and deformation of the tool can be prevented, thereby extending the service life of the crushing roller 14.

Embodiment 3, this embodiment specifically discloses the specific structure disclosure of the driving component in the above-mentioned embodiment 1, the driving component includes a driving motor 25, the driving motor 25 is fixedly provided at the bottom of the chassis 1, and a double pulley 26 is fixedly provided at one end of the output shaft of the driving motor 25, one end of the rotor 11 and one end of the crushing roller 14 located on the left are both fixedly provided with a first pulley 27, and the surfaces of the two first pulleys 27 are connected by a belt transmission, one end of the two crushing rollers 14 are both fixedly provided with a transmission gear 28, and the surfaces of the two transmission gears 28 are meshed for transmission, and one end of the crushing roller 14 located on the right is also fixedly provided with a second pulley 29, and the surface of the second pulley 29 is connected to the surface of the double pulley 26 by a belt transmission;

A transmission rod 30 is rotatably provided at the bottom of the chassis 1, and a third pulley 31 is fixedly provided at one end of the transmission rod 30, and the surface of the third pulley 31 is connected to the surface of the double pulley 26 by belt transmission. A rotating rod 32 is rotatably provided on one side of the screening box 5, and a bevel gear 33 is fixedly provided at one end of the rotating rod 32 and the other end of the transmission rod 30, and the surfaces of the two bevel gears 33 are meshed with each other, and a fourth pulley 34 is fixedly provided at one end of the magnetic separation frame 17 and one end of the rotating rod 32, and the surfaces of the two fourth pulleys 34 are connected by belt transmission.

It should be noted that when the pre-crushing assembly and the secondary crushing assembly in the crushing mechanism are controlled to be driven synchronously, the output shaft of the driving motor 25 drives the right crushing roller 14 to rotate through the double pulley 26 and the second pulley 29, and then the left crushing roller 14 is rotated in the opposite direction through two mutually meshing transmission gears 28. At this time, the two crushing rollers 14 rotate relatively inside the crushing frame 13, and the relatively rotating crushing rollers 14 are used to perform secondary crushing on the construction waste;

The two first pulleys 27 cooperate to drive the rotor 11 to rotate inside the crushing chamber, and then the hammers 12 on the surface of the rotor 11 perform pre-crushing on the construction waste synchronously;

In addition, the transmission rod 30 is driven to rotate synchronously through the cooperation of the double pulley 26 and the third pulley 31, and then the rotating rod 32 is rotated through the mutual meshing transmission of the two bevel gears 33, and the magnetic separation frame 17 inside the screening box 5 is driven to rotate through the two fourth pulleys 34;

The pre-crushing component, the secondary crushing component and the screening component in the crushing mechanism are synchronously driven by the driving motor 25 in a single-motor driving manner, thereby improving the efficiency of the crushing and processing of construction waste while also achieving the effects of simplifying the structure, saving energy, and reducing equipment costs and operating costs.

Embodiment 4: This embodiment specifically discloses a working method of a construction waste crushing device for construction engineering construction, which specifically includes the following steps:

Step 1: The output shaft of the driving motor 25 drives the right crushing roller 14 to rotate through the double pulley 26 and the second pulley 29, and then the left crushing roller 14 is rotated in the opposite direction through two mutually meshing transmission gears 28. At this time, the two crushing rollers 14 rotate relatively inside the crushing frame 13, and at the same time, the rotor 11 is driven to rotate inside the crushing chamber through the cooperation of the two first pulleys 27;

Step 2: After the construction waste is fed into the crushing box 2 through the feed pipe 3, the rotor 11 is used to drive the hammer 12 to rotate inside the crushing chamber. The hammer hits the construction waste at a relatively low speed as the rotor rotates, causing impact and crushing. Then the crushed construction waste falls into the crushing frame 13, and two relatively rotating crushing rollers 14 are used inside the crushing frame 13 to perform secondary crushing on the construction waste. Finally, the construction waste that has completed secondary crushing from the crushing frame 13 falls onto the conveying frame 15, and the conveying frame 15 is used to feed the construction waste into the screening box 5 through the guide frame 16;

Step 3: The transmission rod 30 is driven to rotate synchronously through the cooperation of the double pulley 26 and the third pulley 31, and then the rotating rod 32 is rotated through the mutual meshing transmission of the two bevel gears 33, and the magnetic separation frame 17 inside the screening box 5 is driven to rotate through the two fourth pulleys 34;

Step 4: When screening the metal waste from the crushed construction waste, the electromagnet inside the magnetic separation frame 17 is turned on to absorb the metal waste in the construction waste. Then, the baffle 19 is controlled to slide to one side by the driving end of the first servo electric cylinder 20 to send the construction waste in the screening box 5 out through the discharge pipe 21. Finally, the electromagnet is powered off to send the metal waste on the magnetic separation frame 17 out through the discharge pipe 21, thereby completing the crushing of the construction waste.

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims (1)

1. A construction waste crushing device for construction engineering, characterized by comprising: A machine box (1), wherein a crushing box (2) is fixedly arranged on the left side of the top of the machine box (1), and a feed pipe (3) is also fixedly arranged on the top of the crushing box (2); A dust collection component, wherein the interior of the feed pipe (3) is provided with a dust collection component, and a dust collection box (4) is fixedly provided on one side of the crushing box (2); A crushing mechanism, the crushing mechanism comprising a pre-crushing component and a secondary crushing component, the pre-crushing component being arranged inside the crushing box (2), and the secondary crushing component being arranged on the left side inside the box (1); A screening component, wherein a screening box (5) is fixedly arranged on the right side inside the chassis (1), and a screening component is arranged inside the screening box (5); A drive assembly, wherein a drive frame (6) is fixedly arranged on the front of the chassis (1), and a drive assembly is arranged inside the drive frame (6); The pre-crushing assembly comprises a rotor (11) and a hammer (12); a crushing chamber is provided inside the crushing box (2); a rotor (11) is rotatably provided inside the crushing chamber; and a plurality of hammers (12) are movably provided on the surface of the rotor (11); the secondary crushing assembly comprises a crushing frame (13); a crushing frame (13) is fixedly provided on the left side inside the case (1); two crushing knife rollers (14) are rotatably provided inside the crushing frame (13); openings are provided at the top and bottom of the crushing frame (13); the interior of the crushing frame (13) is communicated with the interior of the crushing box (2); a conveying frame (15) is fixedly provided inside the case (1); a material guide frame (16) is fixedly provided on one side of the conveying frame (15); and one side of the material guide frame (16) extends to the interior of the screening box (5); The screening component comprises a magnetic separation frame (17), a screen (18) is fixedly arranged at the bottom of the screening box (5), and a baffle (19) is movably arranged at the bottom of the screen (18), a magnetic separation frame (17) is rotatably arranged inside the screening box (5), and an electromagnet is arranged inside the magnetic separation frame (17), first servo electric cylinders (20) are fixedly arranged on both sides of the screening box (5), and the driving ends of the two first servo electric cylinders (20) are respectively fixedly connected to the two sides of the baffle (19), and the bottom of the screening box (5) is fixedly arranged A discharge pipe (21), and the interior of the discharge pipe (21) is communicated with the interior of the screening box (5); a cooling rack (22) is movably arranged above the interior of the crushing rack (13), and a cooling port is arranged at the bottom of the cooling rack (22); a second servo electric cylinder (23) is fixedly arranged on one side of the crushing rack (13), and a driving end of the second servo electric cylinder (23) is fixedly connected to the top of the cooling rack (22); a cooling duct (24) is also arranged on one side of the cooling rack (22), and one end of the cooling duct (24) extends to the top of the chassis (1); The driving assembly comprises a driving motor (25), the driving motor (25) is fixedly arranged at the bottom of the chassis (1), and a double pulley (26) is fixedly arranged at one end of the output shaft of the driving motor (25), a first pulley (27) is fixedly arranged at one end of the rotor (11) and one end of the crushing roller (14) located on the left, and the surfaces of the two first pulleys (27) are connected by a belt transmission, a transmission gear (28) is fixedly arranged at one end of the two crushing rollers (14), and the surfaces of the two transmission gears (28) are meshed for transmission, and a second pulley (29) is also fixedly arranged at one end of the crushing roller (14) located on the right, and the surface of the second pulley (29) is aligned with the double pulley (26). The surfaces of the two gears are connected by a belt transmission, a transmission rod (30) is rotatably provided at the bottom of the chassis (1), and a third pulley (31) is fixedly provided at one end of the transmission rod (30), and the surface of the third pulley (31) is connected to the surface of the double pulley (26) by a belt transmission, a rotating rod (32) is rotatably provided on one side of the screening box (5), and a bevel gear (33) is fixedly provided at one end of the rotating rod (32) and the other end of the transmission rod (30), and the surfaces of the two bevel gears (33) are meshed with each other, and a fourth pulley (34) is fixedly provided at one end of the magnetic separation frame (17) and one end of the rotating rod (32), and the surfaces of the two fourth pulleys (34) are connected by a belt transmission; The dust suction assembly comprises a mounting block (7) and a material blocking rod (8); a mounting block (7) is fixedly arranged on one side of the inner wall of the feed pipe (3); a plurality of material blocking rods (8) are rotatably arranged on one side of the mounting block (7); a dust suction port (9) is arranged on one side of the plurality of material blocking rods (8); a dust suction pipe (10) is fixedly arranged on one side of the mounting block (7); one end of the dust suction pipe (10) is communicated with the interior of the dust collecting box (4); and the interior of the dust suction pipe (10) is communicated with the interior of the dust suction ports (9) on one side of the plurality of material blocking rods (8).