Building solid waste garbage grading crushing and regenerating concrete preparation device

Abstract

The application belongs to the technical field of concrete preparation, and particularly relates to a building solid waste grading crushing and recycled concrete preparation device; the application comprises a crusher, a stirring tank, a conveyor and a forming device; the crusher is used for crushing building solid waste, and a conveying device is connected between the crusher and the stirring tank; the conveyor is connected between the stirring tank and the forming device, and is used for conveying the concrete in the stirring tank to the forming device; the forming device comprises a material shell, a conveying belt and a rack; the conveying belt and the material shell are both installed on the rack; a plurality of molds for receiving the concrete are connected to the conveying belt, and a vibrating mechanism for vibrating the molds is installed in the material shell; the forming device is provided with the vibrating mechanism in the material shell, the vibrating mechanism can quickly remove the bubbles in the concrete through the double actions of side knocking and bottom vibration, efficient bubble removal is realized, and the compressive resistance and permeability resistance of the recycled concrete are improved.

Description

Technical Field

[0001] This invention relates to the field of concrete preparation technology, and in particular to a device for preparing recycled concrete from construction solid waste through grading, crushing and recycling. Background Technology

[0002] Construction waste refers to the slag and waste generated by construction units during the construction or demolition of various buildings. In order to reduce the waste of construction waste and the pollution caused to the environment, recycling stations will process construction waste into recycled concrete. After the construction waste is crushed by a crusher, it needs to be transported to the next process by a conveyor. The crushed construction waste is mixed with lime, cement and sand in a certain proportion to make precast concrete blocks.

[0003] The production method of precast concrete blocks usually involves pouring the prepared concrete into a mold, and then workers inserting a vibrator into each mold to vibrate it in order to reduce the amount of air bubbles after the concrete has solidified. However, this method has the following drawbacks: although the vibrator is placed in the mold to remove air bubbles in the concrete, this method can only process one mold at a time, resulting in low efficiency in the preparation of precast concrete blocks. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a device for preparing recycled concrete from construction solid waste through graded crushing. The molding device, equipped with a conveyor belt, a material shell, and a vibration mechanism, can simultaneously vibrate multiple molds, thereby improving the efficiency of concrete prefabrication and aiming to solve the problems in the background technology.

[0005] To achieve the above-mentioned technical objectives, the specific technical solution of the present invention is as follows: The present invention proposes a graded crushing and recycling concrete preparation device for construction solid waste, comprising: a crusher, a mixing tank, a conveyor, and a molding device; the crusher is used to crush construction solid waste, and a conveyor is connected between the crusher and the mixing tank to transport the crushed waste into the mixing tank; the conveyor is connected between the mixing tank and the molding device, and is used to transport the concrete in the mixing tank into the molding device; the molding device includes a material shell, a conveyor belt, and a frame; the conveyor belt and the material shell are both mounted on the frame, and both ends of the material shell are provided with slots for the conveyor belt to pass through; multiple molds for receiving concrete are connected to the conveyor belt, and a vibration mechanism for vibrating the molds is installed inside the material shell.

[0006] As a preferred embodiment of the present invention, the vibration mechanism includes a drive motor connected to a rotating shaft, the rotating shaft being rotatably connected inside the material shell and located below the mold; multiple rotating frames corresponding to the mold are symmetrically rotatably connected to the inner walls on both sides of the material shell, and a striking head is fixedly connected to the upper end of the rotating frame for striking and vibrating the side of the mold.

[0007] As a preferred embodiment of the present invention, a plurality of crankshafts corresponding to the mold are fixedly connected to the rotating shaft, and a first connecting rod is rotatably connected between the crankshaft and the rotating frame.

[0008] As a preferred embodiment of the present invention, a fixed plate is fixedly connected inside the shell, and a lifting rod that can be raised and lowered is movably connected to the fixed plate. A second connecting rod is rotatably connected between the lifting rod and the crankshaft, and a vibration head is fixedly connected to the upper end of the lifting rod for vibrating the bottom surface of the mold.

[0009] As a preferred embodiment of the present invention, a plurality of support mechanisms are symmetrically installed on the inner wall of the material shell for supporting the conveyor belt and the mold; the support mechanism includes a movable seat and a pressure seat, the pressure seat is used to support the side of the mold, and a telescopic rod is fixedly connected between the pressure seat and the movable seat, and a cylindrical spring is connected to the surface of the telescopic rod.

[0010] As a preferred embodiment of the present invention, the support mechanism further includes a fixed seat, which is fixedly connected to the inner wall of the shell and located below the movable seat; a sliding rod is fixedly connected to the fixed seat, the movable seat is slidably connected to the sliding rod, and an elastic element is connected between the fixed seat and the movable seat.

[0011] As a preferred embodiment of the present invention, the support mechanism further includes a support base for supporting the conveyor belt. A tie rod is rotatably connected between the support base and the movable base. The support base is provided with a sliding groove that cooperates with the side of the conveyor belt.

[0012] As a preferred embodiment of the present invention, the material shell is in the shape of an inverted isosceles trapezoid, with an inclined discharge port connected to the bottom of the material shell and a recycling box connected to the end of the discharge port; the output end of the conveyor is connected to a guide plate for uniformly guiding concrete into the mold.

[0013] As a preferred embodiment of the present invention, the conveyor belt is provided with a connecting hole that is connected to the mold, and a limiting plate is provided around the connecting hole.

[0014] As a preferred embodiment of the present invention, a lead screw is rotatably connected to one side of the material shell, a slide block is threaded onto the lead screw, a guide rod is fixedly connected to one side of the material shell and slidably connected to the slide block, a fixed frame is fixedly connected to the slide block, and a squeegee is fixedly connected below the fixed frame.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention comprises a crusher, a mixing tank, a conveyor, and a molding mechanism. The crusher pulverizes solid construction waste, and the pulverized construction waste is mixed with concrete raw materials to prepare precast concrete, thereby realizing the recycling of solid construction waste and effectively reducing the land area occupied by solid construction waste and environmental pollution.

[0017] 2. The molding device of the present invention has a vibration mechanism installed in the material shell. The vibration mechanism can quickly remove air bubbles in the concrete through the dual action of side knocking and bottom vibration, so as to achieve efficient defoaming and improve the compressive strength and impermeability of recycled concrete.

[0018] 3. The support mechanism of this invention uses a pressure seat to elastically clamp the side of the mold, combined with the sliding support of the support seat on the conveyor belt. This not only prevents the mold from shifting or tilting during vibration and conveying, but also reduces the impact of vibration on the overall device through the buffering effect of the telescopic rod, cylindrical spring, and elastic element, thus ensuring the accuracy and consistency of the concrete forming dimensions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the molding device proposed in this invention.

[0021] Figure 3 This is a schematic diagram of the material shell structure proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the material shell proposed in this invention from another angle.

[0023] Figure 5 This is a schematic diagram of the material shell and vibration mechanism proposed in this invention.

[0024] Figure 6 This is a schematic diagram of the support mechanism proposed in this invention.

[0025] The corresponding names of the reference numerals in the diagram are as follows: 1. Crusher; 2. Conveying device; 3. Mixing tank; 4. Conveyor; 5. Forming device; 51. Shell; 52. Support mechanism; 521. Moving seat; 522. Pressure seat; 523. Telescopic rod; 524. Cylindrical spring; 525. Fixed seat; 526. Slide rod; 527. Elastic element; 528. Support seat; 529. Slide groove; 5210. Tie rod; 53. Vibration mechanism; 531. Drive motor; 532. Rotating shaft; 533. 534. Crankshaft; 535. Vibrating head; 536. First connecting rod; 537. Rotating frame; 538. Striking head; 539. Fixing plate; 5310. Lifting rod; 54. Second connecting rod; 55. Frame; 56. Lead screw; 57. Guide rod; 58. Slide block; 59. Fixing frame; 510. Slide plate; 511. Groove; 512. Conveyor belt; 513. Connecting hole; 514. Limiting plate; 515. Mold; 516. Discharge port; 517. Clearance hole; 6. Guide plate; 7. Recycling box. Detailed Implementation

[0026] 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.

[0027] Example: This example discloses a device for preparing recycled concrete from construction solid waste through grading and crushing, such as... Figures 1-6 As shown, the system includes: a crusher 1, a mixing tank 3, a conveyor 4, and a molding device 5. The crusher 1 is a multi-stage jaw crusher. The crusher 1 initiates a staged crushing operation according to a preset crushing gap. Through the squeezing and impact of the internal wear-resistant hammers or jaw plates, large pieces of solid waste are gradually crushed into granular blocks with a particle size that meets the requirements for recycled aggregate. A conveyor 2 connects the crusher 1 and the mixing tank 3 to transport the crushed solid waste into the mixing tank 3. The crushed construction solid waste is mixed with cement, sand, and lime in a certain proportion in the mixing tank 3, with an appropriate amount of water added, and stirred into a mixture. Concrete slurry; Conveyor 4 is a screw conveyor, which is connected between the mixing tank 3 and the molding device 5. Conveyor 4 is used to transport the concrete in the mixing tank 3 to the molding device 5; The concrete solidifies and forms precast concrete blocks in the molding device 5; In this embodiment, the device uses construction solid waste as raw material. Through the graded crushing function of the crusher 1, large bricks, stones, waste concrete blocks, etc. that originally need to be landfilled are transformed into granular blocks that meet the mixing requirements and are directly used as recycled aggregate in concrete preparation, which greatly reduces the amount of construction solid waste landfilled and reduces the risk of solid waste pollution to soil and water sources.

[0028] like Figures 3-5 As shown, the molding device 5 includes a material shell 51, a conveyor belt 511, and a frame 54. Both the conveyor belt 511 and the material shell 51 are mounted on the frame 54. The frame 54 also houses a motor and conveyor rollers for driving the conveyor belt 511. The upper layer of the conveyor belt 511 passes through the material shell 51, and both ends of the material shell 51 have slots 510 for the conveyor belt 511 to pass through. Multiple molds 514 for receiving concrete are connected to the conveyor belt 511. The conveyor belt 511 drives the molds 514 to move into the material shell 51. In this embodiment, the material shell 51 can accommodate... There are three molds 514. After concrete is discharged from the conveyor 4, it is poured into the molds 514. Then, the conveyor belt 511 moves the molds 514 out of the shell 51 and into the next station. The shell 51 is in the shape of an inverted isosceles trapezoid. The bottom of the shell 51 is connected to an inclined discharge port 515. The end of the discharge port 515 is connected to a recycling box 7. During the process of pouring concrete into the molds 514, some concrete ash is spilled into the shell 51 and flows into the recycling box 7 through the discharge port 515. Then it is added back into the mixing tank 3 to avoid concrete waste.

[0029] Preferably, the output end of the conveyor 4 is connected to a guide plate 6. The surface of the guide plate 6 is provided with guide grooves that correspond one-to-one with the three molds in the material shell 51. The concrete is uniformly guided into the three molds 514 through the guide grooves.

[0030] Among them, such as Figure 5 As shown, a vibration mechanism 53 for vibrating the mold 514 is installed inside the shell 51. The vibration mechanism 53 includes a drive motor 531, which is installed at one end of the shell 51. The drive motor 531 is connected to a rotating shaft 532, which is rotatably connected inside the shell 51 and located below the mold 514. Multiple rotating frames 536 corresponding to the mold 514 are symmetrically rotatably connected to the inner walls of both sides of the shell 51. In this embodiment, three pairs of rotating frames 536 are provided. The surface of the shell 51 is provided with clearance holes 516 that rotatably cooperate with the rotating frames 536. A striking head 537 is fixedly connected to the upper end of the moving frame 536 for striking and vibrating the side of the mold 514; three crankshafts 533 are fixedly connected to the rotating shaft 532, and each crankshaft 533 is rotatably connected to two rotating frames 536 on both sides of the inner wall of the material shell 51 by a first connecting rod 535; the rotating shaft 532 is driven to rotate by the drive motor 531, which in turn drives the crankshafts 533 to rotate, and the crankshafts 533 drive multiple rotating frames 536 to rotate simultaneously, thereby driving the striking head 537 to strike and vibrate the side of the mold 514; and a fixing plate 538 is fixedly connected inside the material shell 51. A fixed plate 538 is positioned above the rotating shaft 532. A lifting rod 539, capable of being raised and lowered, is movably connected to the fixed plate 538. Each lifting rod 539 corresponds to a crankshaft 533. A second connecting rod 5310 rotatably connects the lifting rod 539 and the crankshaft 533. A vibrating head 534 is fixedly connected to the upper end of the lifting rod 539 for vibrating the bottom surface of the mold 514. In this embodiment, the drive motor 531 drives the crankshaft 533 to rotate. On one hand, the first connecting rod 535 pulls the rotating frame 536 to rotate, causing the two striking heads 537 on both sides to alternately and repeatedly strike the mold 514. 14. Vibration is applied to the mold 514 from the side. On the other hand, the second connecting rod 5310 pushes the lifting rod 539 to move up and down repeatedly, so that the vibrating head 534 impacts the bottom surface of the mold 514 from top to bottom. Through the dual action of "side impact + bottom lifting vibration", the concrete inside the mold 514 is vibrated in all directions, and the air bubbles in the concrete are quickly removed, achieving efficient defoaming. When the rotating frame 536 rotates, the striking head 537 strikes the inner wall of the material shell 51 at the same time, vibrating the concrete spilled on the inner wall of the material shell 51 to the discharge port 515, which facilitates the discharge of the concrete.

[0031] Preferred, such as Figure 4 and Figure 6As shown, multiple support mechanisms 52 are symmetrically installed on the inner wall of the material shell 51 to support the conveyor belt 511 and the mold 514. Each support mechanism 52 includes a movable seat 521, a fixed seat 525, a pressure seat 522, and a support seat 528. The fixed seat 525 is fixedly connected to the inner wall of the material shell 51 and is located below the movable seat 521. A slide rod 526 is fixedly connected to the fixed seat 525, and the movable seat 521 is slidably connected to the slide rod 526. An elastic element 527 connects the fixed seat 525 and the movable seat 521. The elastic element 527 is a spring, which is sleeved on the surface of the slide rod 526. The support seat 528 supports the conveyor belt 511. A pull rod 5210 is rotatably connected between the support seat 528 and the movable seat 521. The support seat 528 has a sliding groove 529 that mates with the side of the conveyor belt 511. The elastic element 527 applies an upward elastic force to the movable seat 521, causing the support seat 528 to apply tension to the conveyor belt 511, preventing the conveyor belt 511 from sagging under the weight of the concrete. The pressure seat 522 is used to support the side of the mold 514. A telescopic rod 523 is fixedly connected between the pressure seat 522 and the movable seat 521, and a cylindrical spring 524 is connected to the surface of the telescopic rod 523. In this embodiment, the support mechanism 52 achieves stable support for the conveyor belt 511 and the mold 514 through a multi-dimensional structure: the pressure seat 522 uses the elastic buffer of the telescopic rod 523 and the cylindrical spring 524 to fit against the side of the mold 514 to prevent displacement during vibration; the support seat 528 engages with the side of the conveyor belt 511 through the sliding groove 529, and with the linkage adjustment of the pull rod 5210, ensures the smooth operation of the conveyor belt 511 and protects the conveyor belt 511.

[0032] Preferably, the conveyor belt 511 is provided with a connecting hole 512 that is connected to the mold 514. The size of the connecting hole 512 is smaller than that of the mold 514, and a limiting plate 513 is provided around the connecting hole 512. The limiting plate 513 has four positions located at the four corners of the connecting hole 512. The mold 514 can be directly inserted into the middle of the four limiting plates 513, which facilitates the placement and removal of the mold 514.

[0033] Preferably, a lead screw 55 is rotatably connected to one side of the material shell 51. The lead screw 55 is connected to the rotating shaft 532 via a pulley and a belt. A slide block 57 is threaded onto the lead screw 55. A guide rod 56 is fixedly connected to one side of the material shell 51 and slidably connected to the slide block 57. A fixing frame 58 is fixedly connected to the slide block 57. A smearing plate 59 is fixedly connected below the fixing frame 58. By driving the forward and reverse rotation of the drive motor 531, the smearing plate 59 can be driven to move back and forth to smooth the concrete on the surface of the mold 514.

[0034] Working principle: First, solid construction waste (such as waste bricks, concrete blocks, wall debris, etc.) is fed into crusher 1. Crusher 1 gradually crushes large pieces of solid waste into granular blocks with a particle size that meets the requirements of recycled aggregate. Then, it is conveyed to mixing tank 3 through conveyor device 2. After crushing, the construction waste and concrete raw materials are mixed in mixing tank 3. Then, it is conveyed to each mold 514 in material shell 51 through conveyor 4. Then, vibration mechanism 53 is started. Vibration mechanism 53 simultaneously strikes and vibrates the two sides and bottom of mold 514 to quickly remove air bubbles in the concrete and achieve efficient defoaming. At the same time, it drives the screed plate 59 to move back and forth to smooth the concrete on the surface of mold 514. Then, conveyor belt 511 drives mold 514 to move material shell 51 to the next station. Then, a new mold is placed in material shell 51 to start the next round of molding operation.

[0035] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A building solid waste garbage grading crushing and recycling concrete preparation device, characterized in that, include: Crusher (1), mixing tank (3), conveyor (4) and molding device (5); The crusher (1) is used to crush solid construction waste. A conveying device (2) is connected between the crusher (1) and the mixing tank (3) to convey the crushed solid waste into the mixing tank (3). The conveyor (4) is connected between the mixing tank (3) and the molding device (5). The conveyor (4) is used to transport the concrete in the mixing tank (3) to the molding device (5). The forming device (5) includes a shell (51), a conveyor belt (511) and a frame (54); the conveyor belt (511) and the shell (51) are both mounted on the frame (54), and the shell (51) has slots (510) at both ends for the conveyor belt (511) to pass through. The conveyor belt (511) is connected to a plurality of molds (514) for receiving concrete, and the shell (51) is equipped with a vibration mechanism (53) for vibrating the molds (514). Multiple support mechanisms (52) are symmetrically installed on the inner wall of the material shell (51) for supporting the conveyor belt (511) and the mold (514); the support mechanism (52) includes a movable seat (521) and a pressure seat (522), the pressure seat (522) is used to support the side of the mold (514), and a telescopic rod (523) is fixedly connected between the pressure seat (522) and the movable seat (521), and a cylindrical spring (524) is connected to the surface of the telescopic rod (523); The support mechanism (52) further includes a fixed seat (525), which is fixedly connected to the inner wall of the shell (51) and located below the movable seat (521); a slide rod (526) is fixedly connected to the fixed seat (525), the movable seat (521) is slidably connected to the slide rod (526), ​​and an elastic element (527) is connected between the fixed seat (525) and the movable seat (521). The support mechanism (52) further includes a support seat (528) for supporting the conveyor belt (511). A pull rod (5210) is rotatably connected between the support seat (528) and the movable seat (521). The support seat (528) is provided with a sliding groove (529) that is connected to the side of the conveyor belt (511).

2. The device for preparing graded broken recycled concrete from construction solid waste garbage according to claim 1, characterized in that, The vibration mechanism (53) includes a drive motor (531), which is connected to a rotating shaft (532). The rotating shaft (532) is rotatably connected inside the shell (51) and located below the mold (514). Multiple rotating frames (536) are symmetrically rotatably connected to the inner walls on both sides of the shell (51). A striking head (537) is fixedly connected to the upper end of the rotating frame (536) for striking and vibrating the side of the mold (514).

3. The device for preparing graded broken recycled concrete from construction solid waste garbage according to claim 2, characterized in that, Multiple crankshafts (533) are fixedly connected to the rotating shaft (532), and a first connecting rod (535) is rotatably connected between the crankshafts (533) and the rotating frame (536).

4. The building solid waste garbage grading crushing and recycled concrete preparation device according to claim 3, characterized in that, A fixed plate (538) is fixedly connected inside the shell (51). A lifting rod (539) that can be raised and lowered is movably connected on the fixed plate (538). A second connecting rod (5310) is rotatably connected between the lifting rod (539) and the crankshaft (533). A vibration head (534) is fixedly connected to the upper end of the lifting rod (539) for vibrating the bottom surface of the mold (514).

5. The device for preparing graded broken recycled concrete from construction solid waste garbage according to claim 4, characterized in that, The shell (51) is in the shape of an inverted isosceles trapezoid. The bottom of the shell (51) is connected to an inclined discharge port (515), and the end of the discharge port (515) is connected to a recycling box (7). The output end of the conveyor (4) is connected to a guide plate (6) for uniformly guiding concrete into the mold (514).

6. The device for preparing graded broken recycled concrete from construction solid waste garbage according to claim 5, characterized in that, The conveyor belt (511) is provided with a connecting hole (512) that is connected to the mold (514), and a limiting plate (513) is provided around the connecting hole (512).

7. The device for preparing graded broken recycled concrete from construction solid waste garbage according to claim 6, characterized in that, A lead screw (55) is rotatably connected to one side of the shell (51), a slide block (57) is threaded onto the lead screw (55), a guide rod (56) is fixedly connected to one side of the shell (51) and slidably connected to the slide block (57), a fixing frame (58) is fixedly connected to the slide block (57), and a smearing plate (59) is fixedly connected below the fixing frame (58).

Images