Building waste treatment device and method based on housing construction project

Abstract

The invention discloses a building waste treatment device and method based on housing construction engineering, and relates to the technical field of building waste treatment. The building waste treatment device comprises a treatment box used for treating building waste and further comprises a primary crushing unit and a secondary crushing unit, the primary crushing unit comprises a driving assembly and a crushing assembly, a driving roller used for transmitting power is arranged in the driving assembly, and two crushing impellers used for primarily crushing the building waste are arranged in the crushing assembly; the secondary treatment unit is arranged in the treatment box and comprises a linkage assembly, a side crushing assembly and a crushing assembly; the material distributing unit comprises a conveying assembly and a separating assembly. The building waste crushing device has the beneficial effects that a multi-stage treatment mode of matching primary crushing with annular cutting crushing and rolling crushing is adopted, the size of building waste can be greatly reduced, the crushing effect is better, screening and independent collection of metal waste and non-metal waste in the building waste can be achieved after crushing, the recovery rate of high-value metal resources can be increased, resource waste is avoided, and the production cost is reduced. The treatment effect is better.

Description

Technical Field

[0001] This invention relates to the technical field of construction waste treatment, and in particular to a construction waste treatment device and method based on building construction projects. Background Technology

[0002] Building construction projects refer to the construction, renovation, and expansion of various types of buildings and their ancillary facilities. They are mainly used to build various types of buildings such as residences, office buildings, factories, schools, and hospitals. Building construction projects generate a lot of non-metallic waste, including concrete blocks and boards, as well as metallic waste such as steel bars, steel pipes, and steel nails. Construction waste is usually processed using treatment equipment to facilitate its recycling.

[0003] Existing waste treatment devices employ various methods to treat construction waste. For example, a construction waste treatment and recycling device with publication number CN208373237U includes a box, a crushing pipe fixedly installed on the upper inner wall of the box, a motor box fixedly installed on the upper right side wall of the box, a first motor fixedly installed on the right inner side wall of the motor box, a first rotating shaft fixedly installed at the output end of the first motor, and the end of the first rotating shaft away from the first motor passes through the left side wall of the motor box, the right side wall of the box and the right side wall of the crushing pipe in sequence and extends into the crushing pipe. Existing devices typically use a single-stage crushing method to process construction waste. This method is inefficient, and the volume of construction waste after a single stage is large, resulting in poor crushing effect. For example, the aforementioned prior art only uses the rotation of crushing blades to crush construction waste. This method is inefficient, and the volume of construction waste after a single stage is large, which is not conducive to recycling. Furthermore, it cannot independently screen out metal waste within the construction waste during processing, making it impossible to independently recycle high-value metal waste, thus having certain limitations. Therefore, there is an urgent need to design a construction waste treatment device and method based on building construction projects to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a construction waste treatment device and method based on building construction projects, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction waste treatment device based on building construction projects, comprising a treatment tank for treating construction waste, and further comprising: The primary crushing unit is located at the top of the processing box and includes a drive assembly and a crushing assembly. The drive assembly contains a drive roller for transmitting power, and the crushing assembly contains two crushing impellers for the initial crushing of construction waste. The secondary processing unit is located inside the processing box and includes a linkage component, a side crushing component, and a crushing component. The linkage component works with the drive roller to drive the side crushing component and the crushing component. The side crushing component is equipped with multiple fine crushing outer rings for secondary crushing of construction waste, and the crushing component is equipped with grinding rollers for crushing construction waste. The material sorting unit is located inside the processing box and includes a conveying component and a separation component. The conveying component is used to convey and collect the construction waste after secondary crushing, and the separation component is used to independently screen and collect metal fragments in the construction waste. The separation component is equipped with multiple electromagnetic adsorption plates for adsorbing metal fragments.

[0006] Preferably, the side of the processing box is provided with an observation window for observing the processing status of construction waste, and the processing box is provided with an intelligent control host. The intelligent control host is used to control the opening and closing and operation status of the primary crushing unit, the secondary processing unit and the material distribution unit, so as to realize the automated processing and collection of construction waste.

[0007] Preferably, the drive assembly includes a servo motor mounted on the processing box, and a drive roller is fixedly mounted on the drive end of the servo motor. The drive roller is provided with a one-way bearing, and the one-way bearing cooperates with the forward rotation of the drive roller.

[0008] Preferably, the crushing assembly includes a crushing frame fixedly installed on the processing box, and a feed hopper for conveying construction waste is fixedly installed on the crushing frame. Two crushing rollers are rotatably installed inside the crushing frame, and two crushing impellers are respectively fixedly installed on the two crushing rollers. A transmission gear is fixedly installed on each of the two crushing rollers, and the two transmission gears mesh with each other. One of the crushing rollers is fixedly installed on a one-way bearing. Two crushing frames are fixedly installed on the side of the crushing frame, and the two crushing frames cooperate with the two crushing impellers respectively.

[0009] Preferably, the linkage assembly includes a linkage roller rotatably installed inside the processing box, a second one-way bearing is provided on the drive roller, and the second one-way bearing cooperates with the reverse rotation of the drive roller, and a transmission belt for transmitting power is sleeved between the second one-way bearing and the linkage roller.

[0010] Preferably, the side crushing assembly includes a secondary processing cylinder fixedly installed inside the processing box, a support roller rotatably installed inside the secondary processing cylinder, a vibration spring rod fixedly installed on the support roller, a rotating column fixedly installed on the vibration spring rod, a second helical gear fixedly installed on the support roller, and a first helical gear meshing with the second helical gear fixedly installed on the linkage roller. The secondary processing cylinder is fixedly installed with a conveyor bucket for conveying the construction waste after primary crushing, and the conveyor bucket is connected to the lower part of the crushing frame. The secondary processing cylinder is fixedly installed with multiple fine crushing inner rings that cooperate with the fine crushing outer rings, and the multiple fine crushing outer rings are fixedly installed on the rotating column, and the multiple fine crushing outer rings and fine crushing inner rings are arranged alternately.

[0011] Preferably, the crushing assembly includes a filter disc fixedly installed inside the secondary processing cylinder, a plurality of lifting columns fixedly installed on the filter disc, a plurality of grinding rollers fixedly installed at the lower part of the rotating column, and the plurality of grinding rollers cooperating with the lifting columns.

[0012] Preferably, the conveying assembly includes an automatic conveyor fixedly installed in the processing box for conveying construction waste, and a conveying box for conducting construction waste is fixedly connected between the automatic conveyor and the secondary processing cylinder, and a discharge component for discharging construction waste is fixedly connected to the automatic conveyor.

[0013] Preferably, the separation component includes a storage box fixedly installed inside the processing box, and the storage box is rotatably connected to the linkage roller. A separator filter plate and a barrier plate are fixedly installed inside the storage box. Multiple impellers for generating negative pressure suction are fixedly installed on the linkage roller, and the multiple impellers are located between the separator filter plate and the side wall of the storage box. An adsorption tube for adsorbing dust is fixedly connected between the storage box and the secondary processing cylinder, and the feed end of the adsorption tube is located between the separator filter plate and the barrier plate. A support frame is fixedly installed on the automatic conveyor, and multiple electromagnetic adsorption plates are fixedly installed on the support frame. An adsorption box is fixedly connected to the automatic conveyor, and an adsorption tube II for adsorbing metal fragments is fixedly connected between the adsorption box and the storage box. The feed end of the adsorption tube II is located between the barrier plate and the side wall of the storage box. An air guide for conducting air is fixedly installed between the separator filter plate and the barrier plate, and a filter plate is provided inside the air guide. The storage box is equipped with an exhaust screen for venting, and two discharge components for discharging dust and metal fragments respectively.

[0014] A method for treating construction waste from building construction projects, using a construction waste treatment device for the aforementioned building construction projects, includes the following steps: S1. Construction waste is poured into the crushing component in the primary crushing unit, and the two crushing impellers are driven to rotate by the drive component to perform preliminary crushing of the construction waste; S2. The pre-crushed construction waste is poured into the secondary processing unit, where multi-stage crushing of the construction waste is achieved through the cooperation of the side crushing component and the crushing component. S3. The construction waste after secondary crushing is conveyed and discharged through the conveying assembly. At the same time, the metal fragments in the construction waste are removed by the electromagnetic adsorption plate, realizing the separation of metal fragments from non-metal fragments. S4. After the non-metallic fragments are completely conveyed and discharged, the metal fragments are independently conveyed and collected through the separation component.

[0015] This invention provides a construction waste treatment device and method based on building construction projects. It has the following beneficial effects: 1. When processing construction waste, this waste treatment device uses two crushing impellers and two crushing frames to efficiently crush the construction waste into smaller pieces. The crushing torque is large, which can achieve primary crushing of construction waste with greater hardness, resulting in better crushing effect.

[0016] 2. When processing construction waste, this waste treatment device can achieve secondary crushing of the construction waste after primary crushing through the cooperation of the fine crushing inner ring and the fine crushing outer ring. After secondary crushing, the construction waste can be crushed a third time by reciprocating vibration and rolling of the grinding roller. The crushed construction waste has a smaller volume and better crushing effect.

[0017] 3. When processing construction waste, this waste treatment device can automatically transport and discharge the construction waste after multi-stage crushing. During the transportation process, it can also adsorb the metal waste in the construction waste through the adsorption effect of the electromagnetic adsorption plate, so as to realize the independent collection and recycling of metal waste and non-metal waste, resulting in better treatment effect and facilitating the recycling of high-value metal waste.

[0018] 4. When processing construction waste, this waste treatment device can adsorb the dust generated during the secondary crushing process of construction waste through the adsorption effect generated by the rotation of the impeller, effectively preventing dust from escaping and causing environmental pollution, making the crushing process more environmentally friendly.

[0019] In summary, this invention employs a multi-stage processing method combining primary crushing with circumferential cutting and crushing, which can significantly reduce the volume of construction waste, achieve better crushing results, and enable the screening and independent collection of metal and non-metal waste within the construction waste after crushing. This can improve the recovery rate of high-value metal resources, avoid resource waste, and achieve better processing results.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a construction waste treatment device based on building construction projects proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 2 Internal structure diagram of the processing box; Figure 4 for Figure 3 The front view; Figure 5 for Figure 2 A schematic diagram of the structure of the servo motor and the crushing frame; Figure 6 for Figure 5 Schematic diagram of the internal structure of the crushing frame; Figure 7 for Figure 3 A schematic diagram of the structure of the servo motor and the secondary processing cylinder; Figure 8 for Figure 7 Schematic diagram of the structure of the intermediate secondary processing cylinder and the linkage roller; Figure 9 for Figure 8 Schematic diagram of the internal structure of the secondary processing cylinder; Figure 10 for Figure 9 The front view; Figure 11 for Figure 9 Schematic diagram of the rotating column and filter disc in the central section; Figure 12 for Figure 11 Exploded view of the rotating column and the upper structure of the filter disc; Figure 13 for Figure 7 A structural diagram of the storage box and the automatic conveyor; Figure 14 for Figure 13 A schematic diagram of the structure after rotation at a certain angle; Figure 15 for Figure 14 A structural diagram of the medium-sized storage box; Figure 16 for Figure 15 A schematic diagram of the internal structure of the storage box.

[0022] In the diagram: 1. Processing box, 2. Servo motor, 3. Intelligent control host, 4. Discharge component one, 5. Discharge component two, 6. Drive roller, 7. Feed hopper, 8. Crushing frame, 9. Crushing impeller, 10. Secondary processing cylinder, 11. Automatic conveyor, 12. Storage box, 13. Linkage roller, 14. One-way bearing one, 15. Crushing roller, 16. Transmission gear, 17. Crushing frame, 18. Conveyor hopper, 19. One-way bearing two, 20. Transmission belt, 21. Adsorption tube one, 22. Conveying box, 23. Helical gear one, 24. Support roller, 25. Helical gear two, 26. Rotating column, 27. Filter disc, 28. Fine crushing outer ring, 29. Fine crushing inner ring, 30. Lifting column, 31. Vibration spring rod, 32. Grinding roller, 33. Electromagnetic adsorption plate, 34. Adsorption tube two, 35. Adsorption box, 36. Separating filter plate, 37. Barrier plate, 38. Air guide component, 39. Fan impeller. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Example 1: Refer to Figures 1-4 A construction waste treatment device based on building construction projects includes a treatment box 1 for treating construction waste, which mainly includes metal waste and non-metal waste. This waste treatment device is mainly used to realize multi-stage crushing and independent collection of metal waste and non-metal waste, so as to facilitate subsequent targeted treatment of metal waste and non-metal waste.

[0025] This waste treatment device also includes: The primary crushing unit is located on the upper part of the processing box 1. The primary crushing unit has a large torque and can initially crush and decompose the hard construction waste into smaller pieces, creating favorable conditions for subsequent multi-stage crushing and improving the overall processing efficiency. The secondary processing unit is located inside the processing box 1. The secondary processing unit uses a multi-stage crushing method to further crush the waste after primary crushing. Compared with single crushing, it has a better effect and more thorough crushing. It can significantly reduce the volume of waste, meet the particle size requirements for recycling and reuse, better adapt to subsequent recycling and processing processes, and improve the resource utilization rate of waste. The material sorting unit is located inside the processing box 1. The material sorting unit is used to transport the waste material after secondary crushing. The automatic conveying and separation are carried out simultaneously. It can independently separate and classify the metal fragments and non-metallic waste in the construction waste, which can efficiently recycle high-value metal resources, avoid waste, and absorb the dust generated by crushing, reducing environmental pollution, thus taking into account both resource recycling and environmental protection.

[0026] The side of the processing box 1 is provided with an observation window for observing the processing status of construction waste. The processing box 1 is equipped with an intelligent control host 3, which is used to control the opening and closing and operation status of the primary crushing unit, the secondary processing unit and the material distribution unit, so as to realize the automated processing and collection of construction waste.

[0027] Example 2: Refer to Figures 3-6 The difference between this embodiment and embodiment one is that the primary crushing unit includes a driving component and a crushing component. The driving component is provided with a driving roller 6 for transmitting power, and the crushing component is provided with two crushing impellers 9 for the primary crushing of construction waste.

[0028] The drive assembly includes a servo motor 2 mounted on the processing box 1, and a drive roller 6 fixedly mounted on the drive end of the servo motor 2. When the servo motor 2 is started, it will drive the drive roller 6 to rotate. The rotation direction and speed of the drive roller 6 can be controlled by the intelligent control host 3 to realize multi-stage crushing and classified collection of construction waste.

[0029] The drive roller 6 is equipped with a one-way bearing 14, and the one-way bearing 14 cooperates with the forward rotation of the drive roller 6. When the drive roller 6 rotates in the forward direction, it will drive the one-way bearing 14 to rotate. When the drive roller 6 rotates in the reverse direction, the one-way bearing 14 will not rotate.

[0030] In a further embodiment, the crushing assembly includes a crushing frame 8 fixedly installed on the processing box 1, and a feed hopper 7 for conveying construction waste is fixedly installed on the crushing frame 8. The construction waste to be processed is poured into the crushing frame 8 through the feed hopper 7 and undergoes preliminary crushing in the crushing frame 8.

[0031] Two crushing rollers 15 are rotatably installed inside the crushing frame 8, and two crushing impellers 9 are fixedly installed on the two crushing rollers 15 respectively. A transmission gear 16 is fixedly installed on each of the two crushing rollers 15, and the two transmission gears 16 mesh with each other. One of the crushing rollers 15 is fixedly installed on a one-way bearing 14. Once the construction waste is poured in, the servo motor 2 can be started to drive the drive roller 6 and the one-way bearing 14 to rotate in the forward direction. The one-way bearing 14 will rotate in the forward direction, which will drive the crushing roller 15 connected to it to rotate. The rotation of the crushing roller 15 will drive the transmission gear 16 on it to rotate. In turn, under the cooperation of the other transmission gear 16, the other crushing roller 15 will rotate synchronously. The two crushing rollers 15 rotate synchronously and in opposite directions, which will drive the two crushing impellers 9 to rotate synchronously. When construction waste is poured into the crushing frame 8, it will come into contact with the two crushing impellers 9. At this time, the two crushing impellers 9 will cut and crush the construction waste, breaking the larger construction waste into smaller construction waste.

[0032] Two crushing frames 17 are fixedly installed on the side of the crushing frame 8, and the two crushing frames 17 are respectively matched with two crushing impellers 9. The crushing frames 17 and the crushing impellers 9 are used to cut and crush the construction waste falling between the crushing frames 17 and the crushing impellers 9, so that there are no dead corners in the crushing of the construction waste and the crushing is more comprehensive.

[0033] The feed hopper 7 is equipped with a sealing cover. After the construction waste is poured in, the feed hopper 7 can be sealed with the sealing cover to prevent the dust generated when the construction waste is crushed in the crushing frame 8 from escaping to the outside and causing air pollution.

[0034] Example 3: Refer to Figures 2-4 as well as Figures 7-12 The difference between this embodiment and embodiment two is that the secondary processing unit includes a linkage component, a side crushing component and a crushing component. The linkage component and the drive roller 6 work together to drive the side crushing component and the crushing component. The side crushing component is provided with multiple fine crushing outer rings 28 for secondary crushing of construction waste. The crushing component is provided with grinding rollers 32 for crushing construction waste.

[0035] The linkage assembly includes a linkage roller 13 rotatably installed in the processing box 1, a one-way bearing 19 is provided on the drive roller 6, and the one-way bearing 19 cooperates with the reverse rotation of the drive roller 6. A transmission belt 20 for transmitting power is sleeved between the one-way bearing 19 and the linkage roller 13. When the servo motor 2 starts and drives the drive roller 6 to rotate in the opposite direction, the rotation of the drive roller 6 will drive the one-way bearing 19 to rotate (the one-way bearing 14 does not rotate at this time). When the one-way bearing 19 rotates, it will drive the linkage roller 13 to rotate together under the transmission action of the transmission belt 20.

[0036] The side crushing assembly includes a secondary processing cylinder 10 fixedly installed inside the processing box 1. A conveyor hopper 18 for conveying the construction waste after initial crushing is fixedly installed inside the secondary processing cylinder 10, and the conveyor hopper 18 is connected to the lower part of the crushing frame 8. The construction waste that has been initially crushed in the crushing frame 8 will be poured into the secondary processing cylinder 10 through the conveyor hopper 18, so that the construction waste can be crushed again in the secondary processing cylinder 10, further reducing the volume of the construction waste.

[0037] In a further embodiment, a support roller 24 is rotatably installed inside the secondary processing cylinder 10, a vibration spring rod 31 is fixedly installed on the support roller 24, and a rotating column 26 is fixedly installed on the vibration spring rod 31. A helical gear 25 is fixedly installed on the support roller 24, and a helical gear 23 that meshes with the helical gear 25 is fixedly installed on the linkage roller 13. When the linkage roller 13 rotates, it drives the helical gear 23 on it to rotate. When the helical gear 23 rotates, it drives the helical gear 25 that meshes with it to rotate. The rotation of the helical gear 25 will drive the support roller 24 to rotate, thus converting the lateral rotation of the linkage roller 13 into the longitudinal rotation of the support roller 24.

[0038] Multiple fine crushing inner rings 29 that cooperate with the fine crushing outer ring 28 are fixedly installed inside the secondary processing cylinder 10, and the multiple fine crushing outer rings 28 are fixedly installed on the rotating column 26, and the multiple fine crushing outer rings 28 and fine crushing inner rings 29 are alternately arranged. When construction waste falls into the secondary processing cylinder 10, the rotation of the support roller 24 drives the vibration spring rod 31 to rotate, which in turn drives the rotating column 26 to rotate. When the rotating column 26 rotates, it drives the outer fine crushing ring 28 to rotate synchronously, so that the construction waste comes into contact with and collides with multiple rotating fine crushing outer rings 28 in sequence as it falls, and also comes into contact with and collides with the fixed fine crushing inner ring 29. Under the combined action of multiple fine crushing outer rings 28 and multiple fine crushing inner rings 29, the construction waste is crushed in a secondary manner, which further reduces the volume of the construction waste.

[0039] In a further embodiment, the crushing assembly includes a filter disc 27 fixedly installed inside the secondary processing cylinder 10, a plurality of lifting columns 30 fixedly installed on the filter disc 27, and a plurality of grinding rollers 32 fixedly installed on the lower part of the rotating column 26, and the plurality of grinding rollers 32 cooperate with the lifting columns 30. After secondary crushing, the construction waste falls onto the filter disc 27. When the rotating column 26 rotates, it drives the multiple grinding rollers 32 below it to rotate. When the grinding rollers 32 rotate to contact the lifting column 30, they are lifted by the lifting column 30, which in turn pushes the rotating column 26 upward and stretches the vibration spring rod 31. When the grinding rollers 32 do not contact the lifting column 30, the rotating column 26 will automatically fall under its own weight and the combined action of the lifting column 30. When the rotating column 26 continues to rotate, it will intermittently vibrate up and down.

[0040] When the rotating column 26 vibrates up and down, it can drive the outer ring 28 of fine crushing on it to vibrate synchronously, forming a dynamic shearing and squeezing effect with the inner ring 29 of fine crushing in the secondary processing cylinder 10. This allows for more thorough circumferential cutting and crushing of the waste material after initial crushing, making the waste fragments smaller and more uniform. It can also enhance the crushing force and coverage of the multiple grinding rollers 32, ensuring that the grinding rollers 32 can fully crush the construction waste, further reducing the volume of the construction waste. At the same time, it helps the crushed waste material to pass through the filter disc 27 quickly, avoiding waste accumulation and creating favorable conditions for subsequent separation and conveying.

[0041] Example 4: Refer to Figures 2-4 , Figure 7 as well as Figures 13-16The difference between this embodiment and embodiment three is that the material distribution unit includes a conveying component and a separation component. The conveying component is used to convey and collect the construction waste after secondary crushing. The separation component is used to independently screen and collect the metal fragments in the construction waste. The separation component is equipped with multiple electromagnetic adsorption plates 33 for adsorbing metal fragments.

[0042] The conveying assembly includes an automatic conveyor 11 fixedly installed in the processing box 1 for conveying construction waste, and a conveying box 22 for conveying construction waste is fixedly connected between the automatic conveyor 11 and the secondary processing cylinder 10. A discharge component 4 for discharging construction waste is fixedly connected to the automatic conveyor 11. The automatic conveyor 11 is a commonly used conveying device in the prior art. It is equipped with a conveyor belt for conveying materials and is mainly used to realize the automatic conveying of materials. This part is prior art and will not be described in detail here.

[0043] After multi-stage crushing, construction waste that meets the particle size requirements will fall to the bottom of the secondary treatment cylinder 10 through the filter disc 27, while larger filter discs 27 will accumulate on the filter disc 27 and continue to be crushed until they can pass through the filter disc 27. Construction waste in the filter disc 27 will fall onto the automatic conveyor 11 through the conveyor box 22, be conveyed by the automatic conveyor 11, and finally be discharged to the outside of the processing box 1 through the discharge component 4.

[0044] In a further embodiment, the separation component includes a storage box 12 fixedly installed inside the processing box 1, and the storage box 12 is rotatably connected to the linkage roller 13. A separator filter plate 36 and a barrier plate 37 are fixedly installed inside the storage box 12. A plurality of impellers 39 for generating negative pressure suction are fixedly installed on the linkage roller 13, and the plurality of impellers 39 are located between the separator filter plate 36 and the side wall of the storage box 12. An adsorption tube 21 for adsorbing dust is fixedly connected between the storage box 12 and the secondary processing cylinder 10, and the feed end of the adsorption tube 21 is located between the separator filter plate 36 and the barrier plate 37. When construction waste undergoes secondary crushing in the secondary processing cylinder 10, the rotation of the linkage roller 13 will synchronously drive multiple fan impellers 39 to rotate. When the fan impellers 39 rotate, they will generate negative pressure suction in the collection box 12. At this time, the adsorption tube 21 is opened, and the negative pressure suction in the collection box 12 will act on the adsorption tube 21 through the separator filter plate 36. Thus, when the secondary processing cylinder 10 is crushed, the dust generated during the crushing process can be adsorbed through the adsorption tube 21. The storage box 12 is equipped with an exhaust screen for venting. Dust enters the storage box 12 through the adsorption pipe 21 between the separator filter plate 36 and the barrier plate 37. At this time, the dust is blocked by the separator filter plate 36 and accumulates between the separator filter plate 36 and the barrier plate 37, while the air passes through the separator filter plate 36 and is discharged through the exhaust screen, thereby achieving air pressure balance in the storage box 12 and completing the adsorption of dust in the secondary treatment cylinder 10. This prevents excessive dust from escaping and causing pollution to the internal components of the treatment box 1, and also achieves internal cleaning of the secondary treatment cylinder 10.

[0045] In a further embodiment, a support frame is fixedly installed on the automatic conveyor 11, and multiple electromagnetic adsorption plates 33 are also fixedly installed on the support frame. When the construction waste after secondary crushing is conveyed on the automatic conveyor 11, it will come into contact with the multiple electromagnetic adsorption plates 33. At this time, the electromagnetic adsorption plates 33 will be energized to generate magnetic attraction, which can adsorb the metal fragments in the construction waste during the conveying process, so that the metal fragments cannot continue to be conveyed on the automatic conveyor 11, while the non-metal fragments will be discharged through the discharge device 4, thus completing the separation of metal waste and non-metal waste in the construction waste, which is convenient for the subsequent independent recycling of metal waste.

[0046] An adsorption box 35 is fixedly connected to the automatic conveyor 11, and an adsorption tube 34 for adsorbing metal fragments is fixedly connected between the adsorption box 35 and the storage box 12. The feed end of the adsorption tube 34 is located between the barrier plate 37 and the side wall of the storage box 12. An air guide 38 for conducting air is fixedly installed between the separator filter plate 36 and the barrier plate 37, and a filter plate is provided inside the air guide 38. Once the non-metallic waste has been discharged, the multiple electromagnetic adsorption plates 33 can be shut off to demagnetize them. The metallic waste on the electromagnetic adsorption plates 33 will then automatically fall onto the automatic conveyor 11 and continue to be conveyed on the automatic conveyor 11.

[0047] When the metal scrap is conveyed to the top of the automatic conveyor 11, the negative pressure suction generated in the collection box 12 will act on the air guide 38 and then on the adsorption tube 24 (at this time, the adsorption tube 21 is closed). The negative pressure suction in the adsorption tube 24 will act on the adsorption box 35 on the automatic conveyor 11. The metal scrap can be adsorbed into the collection box 12 through the adsorption box 35 and the adsorption tube 24. The metal scrap will be blocked by the filter plate on the air guide 38 in the collection box 12 and will accumulate on the side of the barrier plate 37. Air will enter the side of the separator filter plate 36 through the air guide 38 and be discharged through the exhaust net, thus realizing the independent collection and storage of metal scrap.

[0048] The storage box 12 is equipped with two discharge components 2 5 for discharging dust and metal fragments respectively. The dust and metal waste in the storage box 12 will be discharged through the two corresponding discharge components 2 5 respectively, thereby completing the recycling of metal waste.

[0049] The working principle of this processing device is as follows: The construction waste to be processed is poured into the crushing frame 8 through the feed hopper 7. Then, the servo motor 2 is started to drive the drive roller 6 and the one-way bearing 14 to rotate in the forward direction. With the cooperation of the crushing components, the two crushing impellers 9 are driven to rotate synchronously. At this time, the two crushing impellers 9 will cut and crush the construction waste, breaking the large construction waste into smaller construction waste. The construction waste, after initial crushing in the crushing frame 8, is poured into the secondary processing cylinder 10 through the conveyor hopper 18. At this time, the side crushing component can be activated to drive the rotating column 26 to rotate. When the rotating column 26 rotates, it will drive the outer fine crushing ring 28 to rotate synchronously, so that the construction waste will come into contact and collide with multiple rotating fine crushing outer rings 28 in sequence when falling, and then come into contact and collide with the fixed fine crushing inner ring 29. Thus, the construction waste can be crushed in the second stage by the combined action of multiple fine crushing outer rings 28 and multiple fine crushing inner rings 29.

[0050] After secondary crushing, the construction waste falls onto the filter disc 27. At this time, when the rotating column 26 rotates, it drives the multiple grinding rollers 32 below it to rotate. With the cooperation of the crushing component, the rotating column 26 vibrates up and down, which in turn drives the multiple grinding rollers 32 to rotate and vibrate up and down at the same time. This further crushes the construction waste on the filter disc 27, thereby reducing the volume of the construction waste.

[0051] After multi-stage crushing, construction waste that meets the particle size requirements will fall through the filter disc 27 to the bottom of the secondary processing cylinder 10, and then through the conveyor box 22 to the automatic conveyor 11. It will be conveyed by the automatic conveyor 11 and finally discharged to the outside of the processing box 1 through the discharge component 4.

[0052] When the construction waste after secondary crushing is conveyed on the automatic conveyor 11, it will come into contact with multiple electromagnetic adsorption plates 33. At this time, the electromagnetic adsorption plates 33 will be energized to generate magnetic attraction, which can adsorb the metal fragments in the construction waste during the conveying process, thus completing the separation of metal waste and non-metal waste. After the non-metallic waste is discharged, the multiple electromagnetic adsorption plates 33 are demagnetized. The metallic waste on the electromagnetic adsorption plates 33 will automatically fall onto the automatic conveyor 11 and continue to be conveyed on the automatic conveyor 11. When the metallic waste is conveyed to the top of the automatic conveyor 11, the separation component is activated to generate negative pressure suction in the collection box 12. The metallic waste can be adsorbed into the collection box 12 through the adsorption box 35 and the adsorption tube 34. The metallic waste will be blocked by the filter plate on the air guide 38 in the collection box 12 and accumulate on the side of the barrier plate 37, realizing the independent collection and storage of metallic waste. The dust and metal scrap inside the storage box 12 will be discharged through two corresponding discharge components 2 5, thereby completing the recycling of metal scrap.

[0053] This invention also provides a method for treating construction waste from building construction projects, using the aforementioned construction waste treatment device for building construction projects, comprising the following steps: S1. Construction waste is poured into the crushing component in the primary crushing unit, and the two crushing impellers 9 are driven to rotate by the drive component to perform preliminary crushing of the construction waste; S2. The pre-crushed construction waste is poured into the secondary processing unit, where multi-stage crushing of the construction waste is achieved through the cooperation of the side crushing component and the crushing component. S3. The construction waste after secondary crushing is conveyed and discharged through the conveying assembly. At the same time, the metal fragments in the construction waste are removed by the electromagnetic adsorption plate 33, so as to separate the metal fragments from the non-metal fragments. S4. After the non-metallic fragments are completely conveyed and discharged, the metal fragments are independently conveyed and collected through the separation component.

[0054] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A construction waste treatment device based on building construction projects, comprising a treatment tank (1) for treating construction waste, characterized in that, Also includes: The primary crushing unit is located on the upper part of the processing box (1) and includes a drive assembly and a crushing assembly. The drive assembly is equipped with a drive roller (6) for transmitting power, and the crushing assembly is equipped with two crushing impellers (9) for the primary crushing of construction waste. The secondary processing unit is located in the processing box (1) and includes a linkage component, a side crushing component and a crushing component. The linkage component and the drive roller (6) are used to drive the side crushing component and the crushing component. The side crushing component is provided with multiple fine crushing outer rings (28) for realizing secondary crushing of construction waste. The crushing component is provided with grinding rollers (32) for realizing crushing of construction waste. The material distribution unit is set in the processing box (1) and includes a conveying component and a separation component. The conveying component is used to convey and collect the construction waste after secondary crushing. The separation component is used to independently screen and collect the metal fragments in the construction waste. The separation component is equipped with multiple electromagnetic adsorption plates (33) for adsorbing metal fragments.

2. The construction waste treatment device based on building construction projects according to claim 1, characterized in that, The side of the processing box (1) is provided with an observation window for observing the processing status of construction waste. The processing box (1) is provided with an intelligent control host (3). The intelligent control host (3) is used to control the opening and closing and operation status of the primary crushing unit, the secondary processing unit and the material distribution unit, so as to realize the automated processing and collection of construction waste.

3. The construction waste treatment device based on building construction projects according to claim 1, characterized in that, The drive assembly includes a servo motor (2) mounted on the processing box (1), and a drive roller (6) fixedly mounted on the drive end of the servo motor (2). A one-way bearing (14) is provided on the drive roller (6), and the one-way bearing (14) cooperates with the forward rotation of the drive roller (6).

4. A construction waste treatment device based on building construction projects according to claim 3, characterized in that, The crushing assembly includes a crushing frame (8) fixedly installed on the processing box (1), and a feed hopper (7) for conveying construction waste is fixedly installed on the crushing frame (8). Two crushing rollers (15) are rotatably installed inside the crushing frame (8), and two crushing impellers (9) are fixedly installed on the two crushing rollers (15). A transmission gear (16) is fixedly installed on each of the two crushing rollers (15), and the two transmission gears (16) mesh with each other. One of the crushing rollers (15) is fixedly installed on a one-way bearing (14). Two crushing frames (17) are fixedly installed on the side of the crushing frame (8), and the two crushing frames (17) are respectively engaged with the two crushing impellers (9).

5. A construction waste treatment device based on building construction projects according to claim 4, characterized in that, The linkage assembly includes a linkage roller (13) rotatably installed in the processing box (1), a one-way bearing (19) is provided on the drive roller (6), and the one-way bearing (19) cooperates with the reverse rotation of the drive roller (6), and a transmission belt (20) for transmitting power is sleeved between the one-way bearing (19) and the linkage roller (13).

6. A construction waste treatment device based on building construction projects according to claim 5, characterized in that, The side crushing assembly includes a secondary processing cylinder (10) fixedly installed inside the processing box (1). A support roller (24) is rotatably installed inside the secondary processing cylinder (10). A vibration spring rod (31) is fixedly installed on the support roller (24), and a rotating column (26) is fixedly installed on the vibration spring rod (31). A second helical gear (25) is fixedly installed on the support roller (24), and a first helical gear (23) meshing with the second helical gear (25) is fixedly installed on the linkage roller (13). The secondary processing cylinder (10) is fixedly installed with a conveyor bucket (18) for conveying the construction waste after initial crushing, and the conveyor bucket (18) is connected to the lower part of the crushing frame (8). The secondary processing cylinder (10) is fixedly installed with multiple fine crushing inner rings (29) that cooperate with the fine crushing outer ring (28), and the multiple fine crushing outer rings (28) are fixedly installed on the rotating column (26), and the multiple fine crushing outer rings (28) and fine crushing inner rings (29) are alternately arranged.

7. A construction waste treatment device based on building construction projects according to claim 6, characterized in that, The crushing assembly includes a filter disc (27) fixedly installed inside the secondary processing cylinder (10), a plurality of lifting columns (30) fixedly installed on the filter disc (27), a plurality of grinding rollers (32) fixedly installed on the lower part of the rotating column (26), and the plurality of grinding rollers (32) cooperate with the lifting column (30).

8. A construction waste treatment device based on building construction projects according to claim 7, characterized in that, The conveying assembly includes an automatic conveyor (11) fixedly installed in the processing box (1) for conveying construction waste, and a conveying box (22) for conveying construction waste is fixedly connected between the automatic conveyor (11) and the secondary processing cylinder (10). A discharge component (4) for discharging construction waste is fixedly connected to the automatic conveyor (11).

9. A construction waste treatment device based on building construction projects according to claim 8, characterized in that, The separation assembly includes a storage box (12) fixedly installed inside the processing box (1), and the storage box (12) is rotatably connected to the linkage roller (13). A separator filter plate (36) and a barrier plate (37) are fixedly installed inside the storage box (12). Multiple impellers (39) for generating negative pressure suction are fixedly installed on the linkage roller (13), and the multiple impellers (39) are located between the separator filter plate (36) and the side wall of the storage box (12). An adsorption tube (21) for adsorbing dust is fixedly connected between the storage box (12) and the secondary processing cylinder (10), and the feed end of the adsorption tube (21) is located between the separator filter plate (36) and the barrier plate (37). A support frame is fixedly installed on the automatic conveyor (11), and multiple electromagnetic adsorption plates (33) are fixedly installed on the support frame. An adsorption box (35) is fixedly connected to the automatic conveyor (11), and an adsorption tube (34) for adsorbing metal fragments is fixedly connected between the adsorption box (35) and the storage box (12). The feed end of the adsorption tube (34) is located between the barrier plate (37) and the side wall of the storage box (12). An air guide (38) for conducting air is fixedly installed between the separator filter plate (36) and the barrier plate (37), and a filter plate is provided inside the air guide (38). The storage box (12) is provided with an exhaust net for exhausting air, and the storage box (12) is provided with two discharge components (5) for discharging dust and metal fragments respectively.

10. A method for treating construction waste from building construction projects, used in the construction waste treatment device for building construction projects as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Construction waste is poured into the crushing component in the primary crushing unit, and the two crushing impellers (9) are driven to rotate by the drive component to perform primary crushing of the construction waste; S2. The pre-crushed construction waste is poured into the secondary processing unit, where multi-stage crushing of the construction waste is achieved through the cooperation of the side crushing component and the crushing component. S3. The construction waste after secondary crushing is conveyed and discharged through the conveying assembly. At the same time, the metal fragments in the construction waste are removed by the electromagnetic adsorption plate (33) to achieve the separation of metal fragments from non-metal fragments. S4. After the non-metallic fragments are completely conveyed and discharged, the metal fragments are independently conveyed and collected through the separation component.

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