Construction waste recovery device for construction engineering and recovery method thereof

Abstract

The invention relates to the field of construction waste recycling, in particular to a construction waste recycling device for construction engineering and a recycling method thereof.The construction waste recycling device for construction engineering comprises a box body and a screening mechanism installed in the box body, and the screening mechanism comprises a plurality of screening plates obliquely arranged in the box body; the lower sides of the multiple screening plates are close to the center position of the box body, the multiple screening plates are divided into two sets, the two sets of screening plates are installed on the two opposite inner walls of the box body respectively, each set of screening plates are distributed on the inner walls of the box body at equal intervals from top to bottom, and multiple electromagnetic strips are installed on the screening plates. A construction waste recycling method for construction engineering comprises the following steps that S1, a smashing mechanism is started firstly, electromagnetic strips are powered on, then construction waste is poured into a box body, and after the construction waste passes through a plurality of screening plates, metal is attracted to the screening plates by the electromagnetic strips. The problem that the metal screening efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the field of construction waste recycling, and in particular to a construction waste recycling device for construction engineering and a recycling method thereof. Background Art

[0002] Construction waste refers to the slag, abandoned soil, abandoned materials, silt and other waste generated during the construction, laying, demolition and repair of various buildings, structures, pipelines, etc. by construction units or individuals. Construction waste recycling is a way to reuse solid waste as a renewable resource.

[0003] In the related art, a construction waste recycling device for construction projects includes a box body, a feed port is provided on the top of the box body, a discharge port is provided on the bottom of the box body, a crushing mechanism is installed inside the box body, the crushing mechanism includes two crushing rollers rotatably installed in the box body, the two crushing rollers are connected by a conveyor belt, a crushing motor is fixedly connected to the box body, the output shaft of the crushing motor is fixedly connected to one of the crushing rollers, a plurality of screens are fixedly connected in sequence from top to bottom in the box body, the apertures of the plurality of screens are different, and particles of different diameters can be screened, an electromagnet is fixedly connected to the screen at the top, and the electromagnet adsorbs metals in the construction waste when energized, thereby screening the metals, a plurality of operating ports corresponding to the screens are provided on the side walls of the box body, for easy removal of materials on the screens.

[0004] With respect to the above-mentioned related technologies, in the process of screening metals in construction waste, the construction waste easily clogs the screen, and the top screen cannot effectively separate the metals in the construction waste, resulting in low metal screening efficiency. Summary of the invention

[0005] In order to solve the problem of low metal screening efficiency, the present invention provides a construction waste recycling device for construction engineering and a recycling method thereof.

[0006] In the first aspect, the present invention provides a construction waste recycling device for construction engineering, which adopts the following technical solution: A construction waste recycling device for construction projects comprises a box body and a screening mechanism installed in the box body, the screening mechanism comprises a plurality of screening plates obliquely arranged in the box body, the lower side of the plurality of screening plates is close to the center position of the box body, the plurality of screening plates are divided into two groups, the two groups of screening plates are respectively installed on two opposite inner walls of the box body, each group of screening plates is equidistantly distributed on the inner wall of the box body from top to bottom, the two groups of screening plates are staggered, a plurality of electromagnetic strips are installed on the screening plates, and the plurality of electromagnetic strips are evenly distributed along the length direction of the screening plates.

[0007] Preferably, a plurality of collecting ports corresponding to the screen plates are provided on the side walls of the box body, the collecting ports are located above the screen plates, a collecting box communicating with the collecting ports is fixedly connected to the box body, a plurality of fixing plates corresponding to the screen plates are fixedly connected to the inner walls of the box body, the screen plates are hingedly connected to the fixing plates, a plurality of flipping mechanisms corresponding to the screen plates are installed in the box body, and the plurality of flipping mechanisms can respectively drive the screen plates to flip.

[0008] The top of the sliding block is fixedly connected with a sliding cylinder, and a sliding rod is passed through the top of the sliding cylinder, and a sliding spring is fixedly connected between the inner wall of the sliding cylinder and the sliding rod, and the top of the sliding rod is hingedly connected with the sliding block, and the bottom of the screening plate is provided with a sliding groove used for matching with the sliding block. The box body is rotatably installed with a flip shaft, and the flip shaft is connected to the flip screw by a bevel gear set. The flip shaft extends to the outside of the box body, and the mounting plate is fixedly connected with a first protective cover, the flip screw is located in the first protective cover, and the moving block is slidably installed on the first protective cover; A first conveyor belt is sleeved on two adjacent flip shafts, a driving motor is fixedly connected to the box body, and a second conveyor belt is sleeved on the output shaft of the driving motor and one of the flip shafts.

[0009] Preferably, a cleaning mechanism is installed on the screen plate, and a protective box is fixedly connected to the screen plate. The cleaning mechanism includes a cleaning screw rotatably installed in the protective box, a connecting block is slidably installed on the protective box, the cleaning screw is passed through the connecting block, the cleaning screw is threadedly connected to the connecting block, a cleaning plate is installed on the connecting block, the cleaning plate can contact with metal, a transmission component is installed in the box body, and the flip screw can drive the cleaning screw to rotate through the transmission component.

[0010] Preferably, the transmission component includes a transmission shaft rotatably mounted on the mounting plate, the transmission shaft and the flip screw are sleeved with a third conveyor belt, the transmission shaft extends above the fixed plate, the top of the transmission shaft is fixedly connected with the first bevel gear, the cleaning screw is fixedly connected with the second bevel gear, when the screening plate is flipped to the uppermost end, the second bevel gear meshes with the first bevel gear, the top of the flip screw is provided with a smooth section, the first shaft is rotatably mounted on the bottom of the screening plate, the first shaft and the cleaning screw are sleeved with a fourth transmission belt, the bottom of the screening plate is slidably mounted with a first rack, the first shaft is fixedly connected with the first gear meshing with the first rack, the first rack and the screening plate are fixedly connected with a first spring, and the inner wall of the protection box is fixedly connected with a tightening spring that can abut against the connecting block; The locking plate is provided with a locking mechanism which is adapted to lock the locking plate and to lock the locking plate when the locking plate is unlocked.

[0011] Preferably, a connecting shaft is rotatably mounted on the connecting block, a connecting rod is fixedly connected to the connecting shaft, the connecting rod is fixedly connected to the cleaning plate, a storage groove for placing the cleaning plate is provided on the top of the screening plate, a second rack is fixedly connected to the screening plate, and a second gear meshing with the second rack is fixedly connected to the connecting shaft.

[0012] Preferably, there is a gap between the cleaning plate and the screening plate, a cleaning groove is provided at the bottom of the cleaning plate, a second spring is fixedly connected to the inner wall of the cleaning groove, a scraper is slidably installed in the cleaning groove, the second spring is fixedly connected to the scraper, the scraper can contact the screening plate, and a locking mechanism for locking the scraper is installed on the cleaning plate; A locking mounting groove is provided on the inner wall of the cleaning groove, and the locking mechanism includes a locking spring fixedly connected to the inner wall of the locking mounting groove and a locking block placed in the locking mounting groove, the locking spring is fixedly connected to the locking block, the side wall of the scraper is provided with a plug-in groove for inserting the locking block, the side wall of the cleaning plate is provided with an L-shaped slide groove that passes through the locking mounting groove, an L-shaped unlocking rod is placed in the L-shaped slide groove, the L-shaped unlocking rod is fixedly connected to the locking block, a baffle rod is fixedly connected to the fixed plate, and the L-shaped unlocking rod can contact the baffle rod, and a baffle plate is fixedly connected to one end of the screening plate close to the center of the box body, and a guide inclined surface is formed on the side wall of the baffle plate facing the scraper, and the scraper can slide along the guide inclined surface.

[0013] Preferably, a feed port is provided on the top of the box body, and a crushing box connected to the feed port is fixedly connected to the top of the box body; a blocking mechanism for blocking the feed port is installed on the box body, and the blocking mechanism includes a blocking plate slidably installed on the top surface of the box body, a third rack is fixedly connected to the blocking plate, a blocking shaft is rotatably installed on the box body, a third gear meshing with the third rack is fixedly connected to the blocking shaft, a fifth conveyor belt is sleeved on the blocking shaft and the flip shaft, and a blocking spring is fixedly connected between the blocking plate and the inner wall of the box body.

[0014] Preferably, a accommodating cavity is formed in the screening plate, and a plurality of connecting grooves penetrating the accommodating cavity are opened on the top of the screening plate, and the plurality of connecting grooves are respectively arranged corresponding to the electromagnetic strips, and the electromagnetic strips are placed in the connecting grooves, and a connecting plate is placed in the accommodating cavity, and the plurality of electromagnetic strips are fixedly connected to the connecting plate, and a connecting spring is fixedly connected between the connecting plate and the inner wall of the accommodating cavity, and an abutment rod is passed through the side wall of the screening plate, and the abutment rod is in contact with the fixed plate, and the abutment rod extends into the accommodating cavity, and an abutment slope is formed on the end of the abutment rod away from the fixed plate, and the abutment slope is in contact with the connecting plate.

[0015] In a second aspect, the present invention provides a method for recycling construction waste for construction projects using the following technical solution: A method for recycling construction waste for construction engineering comprises the following steps: S1. First, start the crushing mechanism and energize the electromagnetic strip, then pour the construction waste into the box. After the construction waste passes through multiple screening plates, the metal is adsorbed on the screening plate by the electromagnetic strip; S2. After a period of time, the crushing mechanism is closed, and the driving motor is started to rotate forward. The driving motor drives the screening plate to flip upward, and at the same time, the driving motor drives the blocking plate to block the feed inlet; S3. When the screening plate flips to the uppermost end, the electromagnetic bar is powered off, and the driving motor drives the cleaning plate to move. The cleaning plate pushes the metal on the screening plate to move into the collection box. At this time, there is a gap between the cleaning plate and the screening plate. S4, start the drive motor to reverse, the drive motor drives the screening plate to flip downward, the blocking plate opens, the first spring drives the cleaning screw to reverse, the cleaning plate returns, and the scraper contacts the screening plate to clean the dust and debris on the screening plate; S5. When the screening plate flips to the bottom, turn off the drive motor and repeat the above operation.

[0016] In summary, the present invention includes at least the following beneficial technical effects: 1. When it is necessary to screen the metal in the construction waste, first pour the construction waste into the box, and the construction waste flows on multiple screening plates in sequence. The multiple electromagnetic strips on the screening plates adsorb the metal in the construction waste, so that the metal remains on the screening plate, and other construction waste moves along the screening plate to the bottom of the box for the next screening. Multiple screening plates can make the metal in the construction waste screened more thoroughly, solving the problem of low metal screening efficiency. At the same time, when the construction waste falls on the screening plate, the construction waste impacts the screening plate, and the screening plate vibrates under the action of the sliding spring, so that other impurities in the construction waste can slide smoothly along the screening plate; 2. During the rotation of the flip screw, the flip screw drives the cleaning screw to rotate through the transmission component, the cleaning screw drives the connecting block to move, and the connecting block drives the cleaning plate to move. During the sliding of the metal along the screening plate, the cleaning plate pushes the metal to move, so that the metal on the screening plate can be cleaned more cleanly; 3. During the process of the screening plate flipping upward, the flipping shaft drives the sealing shaft to rotate, the sealing shaft drives the third gear to rotate, the third gear drives the third rack to move, the third rack drives the sealing plate to move, and the sealing plate blocks the feed port to prevent construction waste from falling into the box during the metal collection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a construction waste recycling device for construction engineering according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic diagram of the back structure of a construction waste recycling device for construction engineering according to an embodiment of the present invention.

[0019] Figure 3 Schematic diagram of the structure of the screening mechanism of the embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of a blocking mechanism according to an embodiment of the present invention.

[0021] Figure 5 Schematic diagram of the structure of the driving motor according to the embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of a turning mechanism according to an embodiment of the present invention.

[0023] Figure 7 Schematic diagram of the structure of the sieve plate according to the embodiment of the present invention.

[0024] Figure 8 It is a schematic structural diagram of a cleaning mechanism according to an embodiment of the present invention.

[0025] Fig. 9 Schematic diagram of the structure of a cleaning plate according to an embodiment of the present invention.

[0026] Fig.10 Schematic diagram of the structure of the locking mechanism of the embodiment of the present invention.

[0027] Fig.11 It is a structural schematic diagram of a positioning mechanism according to an embodiment of the present invention.

[0028] Fig.12 Schematic diagram of the L-shaped sliding bar structure of an embodiment of the present invention.

[0029] Description of the accompanying drawings: 1. Box body; 11. Collection box; 12. Fixed plate; 13. Mounting plate; 14. Driving motor; 15. Crushing box; 2. Screening mechanism; 21. Screening plate; 22. Electromagnetic strip; 23. Connecting plate; 24. Connecting spring; 25. Abutting rod; 3. Turning mechanism; 31. Turning screw; 32. Moving block; 33. Sliding cylinder; 34. Sliding rod; 341. Sliding block; 35. Sliding spring; 36. Turning shaft; 4. Cleaning mechanism; 41. Cleaning screw; 411. Second bevel gear; 42. Connecting block; 421. Connecting shaft; 422. Connecting rod; 423. Second gear; 43. Cleaning plate; 431. The second spring; 432, scraper; 44, transmission shaft; 441, first bevel gear; 45, first shaft; 451, first gear; 46, first rack; 47, first spring; 48, second rack; 49, pressing spring; 5, locking mechanism; 51, locking spring; 52, locking block; 53, L-shaped unlocking lever; 54, blocking rod; 55, baffle; 6, blocking mechanism; 61, blocking plate; 62, third rack; 63, blocking shaft; 631, third gear; 64, blocking spring; 7, positioning mechanism; 71, positioning spring; 72, positioning block; 73, push-pull block; 74, L-shaped slide bar; 75, push-pull plate; 76, receiving rod. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Fig.12 The present invention is described in further detail.

[0031] The embodiment of the present invention discloses a construction waste recycling device and a recycling method for construction engineering. Figures 1 to 3 The construction waste recycling device for construction engineering comprises a box body 1 and a screening mechanism 2 installed in the box body 1. The screening mechanism 2 comprises a plurality of screening plates 21 obliquely arranged in the box body 1. The lower side of the plurality of screening plates 21 is close to the center position of the box body 1. The plurality of screening plates 21 are divided into two groups. The two groups of screening plates 21 are respectively installed on two opposite inner walls of the box body 1. Each group of screening plates 21 is equidistantly distributed on the inner wall of the box body 1 from top to bottom. The two groups of screening plates 21 are staggered. A plurality of electromagnetic strips 22 are installed on the screening plates 21. The plurality of electromagnetic strips 2 2 is evenly distributed along the length direction of the screening plate 21; when it is necessary to screen the metal in the construction waste, first pour the construction waste into the box 1, and the construction waste flows in turn on the multiple screening plates 21. The multiple electromagnetic strips 22 on the screening plate 21 adsorb the metal in the construction waste, so that the metal remains on the screening plate 21, and other construction waste moves along the screening plate 21 to the bottom of the box 1 for the next screening. The multiple screening plates 21 can make the metal in the construction waste screened more thoroughly, solving the problem of low metal screening efficiency.

[0032] Reference Figures 1 to 3 A plurality of collecting ports corresponding to the screening plate 21 are provided on the side wall of the box body 1, and the collecting ports are located above the screening plate 21. A collecting box 11 which is connected with the collecting ports is fixedly connected to the box body 1, and a plurality of fixing plates 12 corresponding to the screening plate 21 are fixedly connected to the inner wall of the box body 1, and the screening plate 21 is hingedly connected to the fixing plates 12. A plurality of flipping mechanisms 3 respectively corresponding to the screening plate 21 are installed in the box body 1, and the plurality of flipping mechanisms 3 can respectively drive the screening plate 21 to flip; when the flipping mechanism 3 is started, the flipping mechanism 3 drives the screening plate 21 to flip, and the metal on the screening plate 21 can slide along the screening plate 21 and fall into the collecting box 11 through the collecting port, so that the metal can be taken out easily.

[0033] Reference Figures 3 to 12The inner wall of the box body 1 is fixedly connected with a plurality of mounting plates 13 corresponding to the screening plates 21, and the mounting plate 13 is located below the screening plates 21. The flipping mechanism 3 includes a flipping screw 31 on the rotating mounting plate 13, and a moving block 32 threadedly connected to the flipping screw 31 is sleeved on the flipping screw 31, and a sliding cylinder 33 is fixedly connected to the top of the moving block 32, and a sliding rod 34 is penetrated on the top of the sliding cylinder 33, and a sliding spring 35 is fixedly connected between the inner wall of the sliding cylinder 33 and the sliding rod 34, and a sliding block 341 is hingedly connected to the top of the sliding rod 34, and a sliding groove for use with the sliding block 341 is opened at the bottom of the screening plate 21. A flip shaft 36 is rotatably installed on the box body 1, and the flip shaft 36 is connected to the flip screw 31 through a bevel gear set, and the flip shaft 36 extends to the outside of the box body 1, and a first protective cover is fixedly connected to the mounting plate 13, and the flip screw 31 is located in the first protective cover. The moving block 32 The sliding is installed on the first protective cover; the first conveyor belt is sleeved on the two adjacent flip shafts 36, and the driving motor 14 is fixedly connected to the box body 1, and the output shaft of the driving motor 14 and one of the flip shafts 36 are sleeved with the second conveyor belt; start the driving motor 14, and the driving motor 14 drives the multiple flip shafts 36 to rotate through the first conveyor belt and the second conveyor belt at the same time, and the flip shaft 36 drives the flip screw 31 to rotate, and the flip screw 31 drives the moving block 32 to move, and the moving block 32 drives the sliding cylinder 33 to move, and the sliding cylinder 33 drives the sliding block 341 to move, and the sliding block 341 drives the screening plate 21 to flip, which is convenient for the staff to operate. In the process of construction waste falling on the screening plate 21, the construction waste impacts the screening plate 21, and the screening plate 21 vibrates under the action of the sliding spring 35, so that other impurities in the construction waste can slide smoothly along the screening plate 21.

[0034] Reference Figures 1 to 12 , a cleaning mechanism 4 is installed on the screening plate 21, and a protection box is fixedly connected to the screening plate 21. The cleaning mechanism 4 includes a cleaning screw 41 rotatably installed in the protection box, and a connecting block 42 is slidably installed on the protection box. The cleaning screw 41 is penetrated into the connecting block 42, and the cleaning screw 41 is threadedly connected to the connecting block 42. A cleaning plate 43 is installed on the connecting block 42, and the cleaning plate 43 can contact the metal. A transmission component is installed in the box body 1, and the flipping screw 31 can drive the cleaning screw 41 to rotate through the transmission component; in the process of rotation of the flipping screw 31, the flipping screw 31 drives the cleaning screw 41 to rotate through the transmission component, and the cleaning screw 41 drives the connecting block 42 to move, and the connecting block 42 drives the cleaning plate 43 to move. In the process of metal sliding along the screening plate 21, the cleaning plate 43 pushes the metal to move, so that the metal on the screening plate 21 is cleaned more cleanly.

[0035] Reference Figures 4 to 12The transmission component includes a transmission shaft 44 rotatably mounted on the mounting plate 13, a third conveyor belt is sleeved on the transmission shaft 44 and the flip screw 31, the transmission shaft 44 extends to the top of the fixed plate 12, the top of the transmission shaft 44 is fixedly connected to a first bevel gear 441, and the cleaning screw 41 is fixedly connected to a second bevel gear 411. When the screening plate 21 is flipped to the uppermost end, the second bevel gear 411 meshes with the first bevel gear 441. A smooth section is provided on the top of the flip screw 31, and a first shaft 45 is rotatably mounted on the bottom of the screening plate 21. The first shaft 45 and the cleaning screw 41 are sleeved with a fourth transmission belt, and a first rack 46 is slidably mounted on the bottom of the screening plate 21, and a first gear 451 meshing with the first rack 46 is fixedly connected to the first shaft 45, and the first rack 46 meshes with the screening plate 2 1 is fixedly connected with a first spring 47, and a tightening spring 49 capable of abutting against the connecting block 42 is fixedly connected with the inner wall of the protection box, and a positioning mechanism 7 for positioning the screening plate 21 is installed on the box body 1; when the screening plate 21 is flipped upward, the positioning mechanism 7 can lock the screening plate 21, and at this time, the second bevel gear 411 is meshed with the first bevel gear 441, and the moving block 32 continues to move, and the moving block 32 moves to the smooth section on the flipping screw 31, and the screening plate 21 stops moving, and the flipping screw 31 drives the transmission shaft 44 to rotate, and the transmission shaft 44 drives the first bevel gear 441 to rotate, and the first bevel gear 441 drives the second bevel gear 411 to rotate, and the second bevel gear 411 drives the cleaning screw 41 to rotate, so that the metal on the screening plate 21 can be cleaned.

[0036] Reference Figures 4 to 12The inner wall of the box body 1 is provided with a positioning installation groove, and the positioning mechanism 7 includes a positioning spring 71 fixedly connected to the inner wall of the positioning installation groove and a positioning block 72 slidably installed in the positioning installation groove. The positioning spring 71 is fixedly connected to the positioning block 72, and an insertion groove for inserting the positioning block 72 is provided on the screening plate 21. A downwardly inclined positioning slope is provided on the end surface of the positioning block 72 away from the positioning spring 71, and the positioning slope can contact the screening plate 21. A push-pull block 73 is fixedly connected to the positioning block 72, and an L-shaped slide groove communicating with the interior of the box body 1 is provided at the bottom of the positioning installation groove. An L-shaped slide rod 74 is slidably installed in the L-shaped slide groove, and the top of the L-shaped slide rod 74 is fixedly connected to the push-pull block 7 3, the push-pull plate 75 is in contact with the push-pull block 73, and one end of the push-pull plate 75 facing the push-pull block 73 is formed with a downwardly inclined push-pull inclined surface, the bottom of the L-shaped slide bar 74 is hingedly connected with a receiving rod 76, and a torsion spring is sleeved on the hinge shaft installed in the receiving rod 76, and the receiving rod 76 can contact the moving block 32; during the movement of the moving block 32, the moving block 32 pushes the receiving rod 76 to move, the receiving rod 76 drives the L-shaped slide bar 74 to move, and the L-shaped slide bar 74 drives the push-pull plate 75 to move, so that the push-pull plate 75 is separated from the push-pull block 73, and the positioning spring 71 pushes the positioning block 72 to extend out of the positioning installation groove, so that the screening plate 21 can be positioned during the flipping process of the screening plate 21.

[0037] Reference Figures 7 to 9 A connecting shaft 421 is rotatably installed on the connecting block 42, and a connecting rod 422 is fixedly connected to the connecting shaft 421, and the connecting rod 422 is fixedly connected to the cleaning plate 43. A storage groove for placing the cleaning plate 43 is opened on the top of the screening plate 21, and a second rack 48 is fixedly connected to the screening plate 21, and a second gear 423 meshing with the second rack 48 is fixedly connected to the connecting shaft 421; during the movement of the connecting block 42, the connecting block 42 drives the connecting shaft 421 to move, and the connecting shaft 421 drives the second gear 423 to move, and the second gear 423 rotates under the reaction force of the second rack 48, and the second gear 423 drives the connecting shaft 421 to rotate, and the connecting shaft 421 drives the connecting rod 422 to rotate, and the connecting rod 422 drives the cleaning plate 43 to rotate, so that the cleaning plate 43 is stored in the storage groove, thereby avoiding the occurrence of obstruction to the construction waste during the screening of the construction waste.

[0038] Reference Figures 6 to 10, there is a gap between the cleaning plate 43 and the screening plate 21, a cleaning groove is provided at the bottom of the cleaning plate 43, a second spring 431 is fixedly connected to the inner wall of the cleaning groove, a scraper 432 is slidably installed in the cleaning groove, the second spring 431 is fixedly connected to the scraper 432, the scraper 432 can contact the screening plate 21, and a locking mechanism 5 for locking the scraper 432 is installed on the cleaning plate 43; a locking installation groove is provided on the inner wall of the cleaning groove, the locking mechanism 5 includes a locking spring 51 fixedly connected to the inner wall of the locking installation groove and a locking block 52 placed in the locking installation groove, the locking spring 51 is fixedly connected to the locking block 52, a plug-in groove for inserting the locking block 52 is provided on the side wall of the scraper 432, an L-shaped slide groove that passes through the locking installation groove is provided on the side wall of the cleaning plate 43, an L-shaped unlocking rod 53 is placed in the L-shaped slide groove, and the L-shaped unlocking rod 53 is fixedly connected to the locking block 52, A baffle 54 is fixedly connected to the fixed plate 12, and the L-shaped unlocking rod 53 can contact the baffle 54. A baffle 55 is fixedly connected to the end of the screening plate 21 close to the center of the box body 1. The baffle 55 is formed with a guide slope on the side wall facing the scraper 432, and the scraper 432 can slide along the guide slope; in the process of the cleaning plate 43 cleaning the metal, there is a gap between the cleaning plate 43 and the screening plate 21, and the cleaning plate 43 will not scrape the dust and impurities on the screening plate 21 into the collecting box 11. When the L-shaped unlocking rod 53 contacts the baffle 54, the baffle 54 pushes the L-shaped unlocking rod 53 to move, and the L-shaped unlocking rod 53 drives the locking block 52 to move, so that the locking block 52 is pulled out of the plug-in slot, and the second spring 431 pushes the scraper 432 to contact the screening plate 21. When the cleaning plate 43 moves in the opposite direction, the scraper 432 can clean the dust and debris on the screening plate 21.

[0039] Reference Figures 3 to 5 A feed port is provided on the top of the box body 1, a crushing box 15 connected to the feed port is fixedly connected to the top of the box body 1, a blocking mechanism 6 for blocking the feed port is installed on the box body 1, and the blocking mechanism 6 includes a blocking plate 61 slidably installed on the top surface of the box body 1, a third rack 62 is fixedly connected to the blocking plate 61, a blocking shaft 63 is rotatably installed on the box body 1, a third gear 631 meshing with the third rack 62 is fixedly connected to the blocking shaft 63, and the blocking shaft 63 is sleeved on the flip shaft 36 A fifth conveyor belt is provided, and a sealing spring 64 is fixedly connected between the sealing plate 61 and the inner wall of the box body 1; in the process of the screening plate 21 flipping upward, the flipping shaft 36 drives the sealing shaft 63 to rotate, the sealing shaft 63 drives the third gear 631 to rotate, the third gear 631 drives the third rack 62 to move, the third rack 62 drives the sealing plate 61 to move, and the sealing plate 61 blocks the feed port to prevent construction waste from falling into the box body 1 during the metal collection process.

[0040] Reference Figure 6 and Figure 7 A receiving cavity is formed in the screening plate 21, and a plurality of connecting grooves penetrating the receiving cavity are provided on the top of the screening plate 21. The plurality of connecting grooves are respectively arranged corresponding to the electromagnetic strips 22, and the electromagnetic strips 22 are placed in the connecting grooves. A connecting plate 23 is placed in the receiving cavity, and the plurality of electromagnetic strips 22 are fixedly connected to the connecting plate 23. A connecting spring 24 is fixedly connected between the connecting plate 23 and the inner wall of the receiving cavity. An abutting rod 25 is provided on the side wall of the screening plate 21, and the abutting rod 25 contacts the fixed plate 12, and the abutting rod 25 extends to In the accommodating cavity, an abutment slope is formed on the end of the abutment rod 25 away from the fixed plate 12, and the abutment slope is in contact with the connecting plate 23; in the process of the electromagnetic strip 22 adsorbing the metal, the electromagnetic strip 22 protrudes from the screening plate 21, making the metal adsorption more stable, and when the screening plate 21 is flipped, the abutment rod 25 is separated from the fixed plate 12, and the connecting spring 24 drives the connecting plate 23 to move, and the connecting plate 23 drives the electromagnetic strip 22 to move, so that the electromagnetic strip 22 is stored in the connecting groove, which is convenient for collecting the metal.

[0041] The implementation principle of a construction waste recycling device for construction engineering in an embodiment of the present invention is as follows: when it is necessary to screen the metal in the construction waste, first pour the construction waste into the box 1, and the construction waste flows on multiple screening plates 21 in sequence. At the same time, the construction waste impacts the screening plate 21, causing the screening plate 21 to vibrate, and the multiple electromagnetic strips 22 on the screening plate 21 adsorb the metal in the construction waste, so that the metal remains on the screening plate 21, and other construction waste moves along the screening plate 21 to the bottom of the box 1 for the next screening. After a period of time, start the drive motor 14, and the drive motor 14 drives the flip screw 31 to rotate, and the flip screw 31 drives the screening plate 21 to flip upward, and the metal on the screening plate 21 can slide along the screening plate 21 and fall into the collection box 11 through the collection port. At the same time, the flip shaft 36 drives the blocking plate 61 to move, and the blocking plate 61 blocks the feed port. When the moving block 32 contacts the receiving rod 76, the moving The block 32 pushes the receiving rod 76 to move, so that the positioning block 72 extends from the positioning installation groove. When the screening plate 21 is opposite to the positioning block 72, the positioning block 72 is positioned. At this time, the second bevel gear 411 is meshed with the first bevel gear 441, and the connecting plate 23 drives the electromagnetic strip 22 to be stored in the connecting groove. The flip screw 31 drives the cleaning screw 41 to rotate, and the cleaning screw 41 drives the connecting block 42 to move, and the connecting block 42 drives the cleaning plate 43 to move, and the cleaning The plate 43 is flipped out from the storage slot, and the cleaning plate 43 cleans the metal on the screening plate 21. When the L-shaped unlocking rod 53 contacts the blocking rod 54, the blocking rod 54 pushes the L-shaped unlocking rod 53 to move, and the L-shaped unlocking rod 53 drives the locking block 52 to move, so that the locking block 52 is pulled out of the plug-in slot, and the second spring 431 pushes the scraper 432 to contact the screening plate 21. When the cleaning plate 43 moves in the opposite direction, the scraper 432 can clean the dust and debris on the screening plate 21.

[0042] A method for recycling construction waste for construction engineering comprises the following steps: S1. First, start the crushing mechanism and energize the electromagnetic strip 22. Then pour the construction waste into the box 1. After the construction waste passes through multiple screening plates 21, the metal is adsorbed on the screening plates 21 by the electromagnetic strip 22.

[0043] S2. After a period of time, the crushing mechanism is closed, and the driving motor 14 is started to rotate forward. The driving motor 14 drives the screening plate 21 to flip upward, and at the same time, the driving motor 14 drives the blocking plate 61 to block the feed inlet.

[0044] S3. When the screening plate 21 flips to the uppermost end, the electromagnetic bar 22 is powered off, and the driving motor 14 drives the cleaning plate 43 to move. The cleaning plate 43 pushes the metal on the screening plate 21 to move into the collecting box 11. At this time, there is a gap between the cleaning plate 43 and the screening plate 21.

[0045] S4. Start the drive motor 14 to reverse, the drive motor 14 drives the screening plate 21 to flip downward, the blocking plate 61 opens, the first spring 47 drives the cleaning screw 41 to reverse, the cleaning plate 43 returns, and at the same time the scraper 432 contacts the screening plate 21 to clean the dust and debris on the screening plate 21.

[0046] S5. When the screening plate 21 turns over to the lowermost end, the driving motor 14 is turned off and the above operation is repeated.

[0047] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction waste recycling device for construction engineering, comprising a box (1) and a screening mechanism (2) installed in the box (1), characterized in that: The screening mechanism (2) comprises a plurality of screening plates (21) arranged obliquely in a box body (1), wherein a lower side of the plurality of screening plates (21) is close to a central position of the box body (1), and the plurality of screening plates (21) are divided into two groups, wherein the two groups of screening plates (21) are respectively mounted on two opposite inner walls of the box body (1), and each group of screening plates (21) is evenly distributed on the inner wall of the box body (1) from top to bottom, and the two groups of screening plates (21) are staggered, and a plurality of electromagnetic strips (22) are mounted on the screening plates (21), and the plurality of electromagnetic strips (22) are evenly distributed along the length direction of the screening plates (21).

2. A construction waste recycling device for construction engineering according to claim 1, characterized in that: A plurality of collecting ports corresponding to the sieve plates (21) are provided on the side wall of the box body (1), the collecting ports being located above the sieve plates (21), a collecting box (11) penetrating the collecting ports being fixedly connected to the box body (1), a plurality of fixing plates (12) corresponding to the sieve plates (21) being fixedly connected to the inner wall of the box body (1), the sieve plates (21) being hingedly connected to the fixing plates (12), a plurality of groups of turning mechanisms (3) respectively corresponding to the sieve plates (21) being installed in the box body (1), the plurality of groups of turning mechanisms (3) respectively being capable of driving the sieve plates (21) to turn over.

3. A construction waste recycling device for construction engineering according to claim 2, characterized in that: A plurality of mounting plates (13) corresponding to the screening plates (21) are fixedly connected to the inner wall of the box body (1), the mounting plates (13) being located below the screening plates (21), the flipping mechanism (3) comprising a flipping screw (31) rotating on the mounting plate (13), a moving block (32) threadedly connected to the flipping screw (31) being sleeved on the flipping screw (31), a sliding cylinder (33) being fixedly connected to the top of the moving block (32), a sliding rod (34) being passed through the top of the sliding cylinder (33), and the inner wall of the sliding cylinder (33) being fixedly connected to the sliding rod (34). A sliding spring (35) is provided, the top of the sliding rod (34) is hingedly connected to a sliding block (341), the bottom of the screening plate (21) is provided with a sliding groove for use with the sliding block (341), a flip shaft (36) is rotatably mounted on the box body (1), the flip shaft (36) is connected to the flip screw (31) via a bevel gear set, the flip shaft (36) extends to the outside of the box body (1), a first protective cover is fixedly connected to the mounting plate (13), the flip screw (31) is located in the first protective cover, and the moving block (32) is slidably mounted on the first protective cover; A first conveyor belt is sleeved on two adjacent flip shafts (36), a drive motor (14) is fixedly connected to the box body (1), and a second conveyor belt is sleeved on the output shaft of the drive motor (14) and one of the flip shafts (36).

4. A construction waste recycling device for construction engineering according to claim 3, characterized in that: A cleaning mechanism (4) is installed on the screening plate (21), a protective box is fixedly connected to the screening plate (21), the cleaning mechanism (4) comprises a cleaning screw (41) rotatably installed in the protective box, a connecting block (42) is slidably installed on the protective box, the cleaning screw (41) is inserted into the connecting block (42), the cleaning screw (41) is threadedly connected to the connecting block (42), a cleaning plate (43) is installed on the connecting block (42), the cleaning plate (43) can contact metal, a transmission component is installed in the box body (1), and the flip screw (31) can drive the cleaning screw (41) to rotate through the transmission component.

5. A construction waste recycling device for construction engineering according to claim 4, characterized in that: The transmission component comprises a transmission shaft (44) rotatably mounted on the mounting plate (13); a third conveyor belt is sleeved on the transmission shaft (44) and the flip screw (31); the transmission shaft (44) extends above the fixed plate (12); a first bevel gear (441) is fixedly connected to the top of the transmission shaft (44); a second bevel gear (411) is fixedly connected to the cleaning screw (41); when the screening plate (21) is flipped to the uppermost end, the second bevel gear (411) meshes with the first bevel gear (441), and the flip screw (31) is rotated to the uppermost end. A smooth section is provided at the top, a first rotating shaft (45) is rotatably mounted on the bottom of the screening plate (21), a fourth transmission belt is sleeved on the first rotating shaft (45) and the cleaning screw (41), a first rack (46) is slidably mounted on the bottom of the screening plate (21), a first gear (451) meshing with the first rack (46) is fixedly connected to the first rotating shaft (45), a first spring (47) is fixedly connected between the first rack (46) and the screening plate (21), and a tightening spring (49) capable of abutting against the connecting block (42) is fixedly connected to the inner wall of the protection box; The housing (1) is provided with a positioning mechanism (7) for positioning the screening plate (21); the inner wall of the housing (1) is provided with a positioning installation groove; the positioning mechanism (7) comprises a positioning spring (71) fixedly connected to the inner wall of the positioning installation groove and a positioning block (72) slidably installed in the positioning installation groove; the positioning spring (71) is fixedly connected to the positioning block (72); the screening plate (21) is provided with an insertion groove for inserting the positioning block (72); the end surface of the positioning block (72) away from the positioning spring (71) is provided with a downwardly inclined positioning inclined surface; the positioning inclined surface is capable of contacting the screening plate (21); The positioning block (72) is fixedly connected to a push-pull block (73); the bottom of the positioning installation groove is provided with an L-shaped slide groove connected to the interior of the box body (1); an L-shaped slide rod (74) is slidably installed in the L-shaped slide groove; the top of the L-shaped slide rod (74) is fixedly connected to a push-pull plate (75) in contact with the push-pull block (73); one end of the push-pull plate (75) facing the push-pull block (73) is formed with a push-pull inclined surface inclined downward; the bottom of the L-shaped slide rod (74) is hingedly connected to a receiving rod (76); a torsion spring is sleeved on the hinge shaft installed in the receiving rod (76); and the receiving rod (76) can contact the moving block (32).

6. A construction waste recycling device for construction engineering according to claim 4, characterized in that: A connecting shaft (421) is rotatably mounted on the connecting block (42), a connecting rod (422) is fixedly connected to the connecting shaft (421), the connecting rod (422) is fixedly connected to the cleaning plate (43), a receiving groove for placing the cleaning plate (43) is provided on the top of the screening plate (21), a second rack (48) is fixedly connected to the screening plate (21), and a second gear (423) meshing with the second rack (48) is fixedly connected to the connecting shaft (421).

7. A construction waste recycling device for construction engineering according to claim 6, characterized in that: There is a gap between the cleaning plate (43) and the screening plate (21); a cleaning groove is provided at the bottom of the cleaning plate (43); a second spring (431) is fixedly connected to the inner wall of the cleaning groove; a scraper (432) is slidably mounted in the cleaning groove; the second spring (431) is fixedly connected to the scraper (432); the scraper (432) is capable of contacting the screening plate (21); and a locking mechanism (5) for locking the scraper (432) is mounted on the cleaning plate (43); The inner wall of the cleaning groove is provided with a locking installation groove, the locking mechanism (5) comprises a locking spring (51) fixedly connected to the inner wall of the locking installation groove and a locking block (52) placed in the locking installation groove, the locking spring (51) is fixedly connected to the locking block (52), the side wall of the scraper (432) is provided with a plug-in groove for inserting the locking block (52), the side wall of the cleaning plate (43) is provided with an L-shaped sliding groove that penetrates the locking installation groove, and a locking block (52) is placed in the L-shaped sliding groove. An L-shaped unlocking rod (53) is fixedly connected to the locking block (52); a blocking rod (54) is fixedly connected to the fixing plate (12); the L-shaped unlocking rod (53) is capable of contacting the blocking rod (54); a blocking plate (55) is fixedly connected to one end of the screening plate (21) close to the center of the box body (1); a guide inclined surface is formed on the side wall of the blocking block (55) facing the scraper (432); and the scraper (432) is capable of sliding along the guide inclined surface.

8. The construction waste recycling device for construction engineering according to claim 3, characterized in that: A feed port is provided on the top of the box body (1), a crushing box (15) in communication with the feed port is fixedly connected to the top of the box body (1), a blocking mechanism (6) for blocking the feed port is installed on the box body (1), the blocking mechanism (6) comprises a blocking plate (61) slidably mounted on the top surface of the box body (1), a third rack (62) is fixedly connected to the blocking plate (61), a blocking shaft (63) is rotatably mounted on the box body (1), a third gear (631) meshing with the third rack (62) is fixedly connected to the blocking shaft (63), a fifth conveyor belt is sleeved on the blocking shaft (63) and the flip shaft (36), and a blocking spring (64) is fixedly connected between the blocking plate (61) and the inner wall of the box body (1).

9. The construction waste recycling device for construction engineering according to claim 2, characterized in that: The screening plate (21) is formed with a receiving cavity, and a plurality of connecting grooves penetrating the receiving cavity are formed on the top of the screening plate (21). The plurality of connecting grooves are respectively arranged corresponding to the electromagnetic strips (22), and the electromagnetic strips (22) are placed in the connecting grooves. A connecting plate (23) is placed in the receiving cavity, and the plurality of electromagnetic strips (22) are fixedly connected to the connecting plate (23). A connecting spring (24) is fixedly connected between the connecting plate (23) and the inner wall of the receiving cavity. An abutment rod (25) is passed through the side wall of the screening plate (21), and the abutment rod (25) contacts the fixed plate (12). The abutment rod (25) extends into the receiving cavity, and an abutment slope is formed on one end of the abutment rod (25) away from the fixed plate (12), and the abutment slope contacts the connecting plate (23).

10. A method for recycling construction waste for construction projects, using a construction waste recycling device for construction projects according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, first start the crushing mechanism and energize the electromagnetic bar (22), then pour the construction waste into the box (1), after the construction waste passes through a plurality of screening plates (21), the metal is adsorbed on the screening plates (21) by the electromagnetic bar (22); S2, after a period of time, the crushing mechanism is closed, and the drive motor (14) is started to rotate forward, so that the drive motor (14) drives the screening plate (21) to flip upward, and at the same time, the drive motor (14) drives the blocking plate (61) to block the feed inlet; S3, when the screening plate (21) is turned over to the uppermost end, the electromagnetic strip (22) is powered off, the driving motor (14) drives the cleaning plate (43) to move, and the cleaning plate (43) pushes the metal on the screening plate (21) to move into the collecting box (11), and at this time, there is a gap between the cleaning plate (43) and the screening plate (21); S4, starting the drive motor (14) to rotate in reverse, the drive motor (14) drives the screening plate (21) to flip downward, the blocking plate (61) is opened, the first spring (47) drives the cleaning screw (41) to rotate in reverse, the cleaning plate (43) returns, and at the same time the scraper (432) contacts the screening plate (21) to clean the dust and debris on the screening plate (21); S5. When the screening plate (21) turns over to the lowermost end, the driving motor (14) is turned off and the above operation is repeated.

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