Recycled concrete preparation and processing device and preparation method thereof

Abstract

The invention discloses a recycled concrete preparing and processing device which comprises a screening box, a feeding port formed in the top of the screening box, a discharging port formed in the bottom of the screening box and an opening and closing door arranged on the rear side wall of the screening box. The crushing assembly is arranged in the middle section of the screening box; the filtering and adjusting assembly is obliquely arranged between the crushing assembly and the discharging opening and is used for filtering powder-cut stone particles of different specifications; the lifting assembly is arranged on the outer side wall of the screening box and is used for repeatedly crushing the stone particles; the filtering adjusting assembly comprises a second net plate fixedly arranged on the inner side wall of the screening box, a first installation part movably arranged at the top of the second net plate, a plurality of second net holes formed in the second net plate and first net holes formed in the first net plate and used in cooperation with the second net holes, and a transmission assembly used for driving the first net plate to rotate is arranged at the bottom of the second net plate.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete preparation and processing equipment, and in particular to a recycled concrete preparation and processing equipment and a preparation method thereof. Background Art

[0002] At present, recycled concrete refers to new concrete made by crushing, cleaning, and grading discarded concrete blocks, mixing them with grading in a certain proportion, partially or completely replacing natural aggregates such as sand and gravel, and then adding cement, water, etc. The aggregate is a granular loose material that acts as a skeleton or filler in the recycled concrete.

[0003] However, the existing concrete stone screening device has the following defects: (1) When the existing concrete stone screening device is in use, there will be stones of different specifications, so when the stones are discharged, unsuitable stones will also be discharged, which is not convenient for rapid secondary screening and reduces practicality. Summary of the Invention

[0004] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide a recycled concrete preparation and processing device, which is convenient for lifting and transporting larger-sized stone particles, so that the stone particles can be crushed and screened again through a crushing assembly.

[0005] In order to solve the above existing technical problems, one of the objectives of this application is achieved by adopting the following technical solutions: A recycled concrete preparation and processing device includes a screening box, a feed port arranged at the top of the screening box, a discharge port arranged at the bottom of the screening box, and a switch door arranged on the rear side wall of the screening box. It also includes a crushing assembly arranged in the middle section of the screening box, a filter adjustment assembly inclined between the crushing assembly and the discharge port for filtering powdered stone particles of different specifications, and a lifting assembly arranged on the outer wall of the screening box for repeatedly crushing stone particles. The filter adjustment assembly includes a mesh plate 2 fixedly arranged on the inner side wall of the screening box, an installation 1 movably arranged on the top of the mesh plate 2, a plurality of mesh holes 2 opened on the mesh plate 2, and a mesh hole 1 opened on the mesh plate 1 for use in conjunction with the mesh hole 2. A transmission assembly for driving the mesh plate 1 to rotate is provided at the bottom of the mesh plate 2.

[0006] Furthermore, the transmission assembly includes a box body arranged at the bottom of mesh plate 1, a rod body arranged through the bottom of mesh plate 2 and rotatably connected to the bottom of the box body and fixedly connected to the top of mesh plate 1, a bevel gear 1 fixedly sleeved on the rod body, a hand crank arranged through the outer wall of the box body and the outer wall of the screening box, and a main gear 2 fixedly arranged at the right end of the hand crank and meshing with the bevel gear 1.

[0007] Furthermore, the crushing assembly includes a screen plate that is arranged through the outer wall of the screening box, a baffle plate that is arranged through the outer wall of the powder box and is located at the lower side of the screen plate, a drive motor that is located between the screen plate and the baffle plate and is arranged on the outer wall of the screening box, a drive shaft that is arranged through the outer wall of the screening box and is fixedly connected to the output end of the drive motor and rotates coaxially, a feed hopper that is located between the screen plate and the baffle plate and is connected to the outer wall of the screening box, and a plurality of powder cutters arranged on the drive shaft.

[0008] Furthermore, the lifting assembly includes a screw conveyor vertically arranged on the outer wall of the screening box and connected to the screening box through a connecting pipe at the bottom, and a discharge pipe arranged at the top of the screw conveyor and used in conjunction with the feed port. The connecting pipe is located between the barrier plate and the mesh plate, and a pull-out plate is provided through the top of the connecting pipe.

[0009] Furthermore, a feeding assembly for realizing intermittent feeding is provided at the feeding port, and the feeding assembly includes a frame body arranged on the top of the screening box through a number of shock-absorbing springs, a mounting block arranged at the bottom of the frame body, a recessed hole opened through the bottom of the mounting block, a support rod horizontally arranged on the inner wall of the screening box, a stepper motor arranged on the support rod, a drive shaft 2 fixedly connected to the output end of the stepper motor and rotating coaxially, and a conical block arranged at the top of the drive shaft 2 and used in conjunction with the recessed hole.

[0010] A method for preparing a recycled concrete preparation and processing device comprises the following steps: S1, when adjusting the mesh size, by rotating the hand crank, the hand crank drives the bevel gear 2 to rotate, the bevel gear 2 drives the bevel gear 1 to rotate, the bevel gear 1 drives the rod body to rotate, and the rod body drives the mesh plate 1 to rotate on the mesh plate 2, thereby achieving the size adjustment of the contact surface between the mesh 1 and the mesh 2; S2, when using the lifting assembly, by pulling the pull plate upwards, the stone particles enter the screw feeder through the connecting pipe, and then enter the feed port above the screening box through the discharge pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting up a lifting component, it is convenient to lift and transport larger-sized stone particles, so that the stone particles can be crushed and screened again by the crushing component. Compared with the existing technology, this solves the technical problem that the existing concrete stone particle screening device will have stone particles of different specifications when in use, so that when the stone particles are discharged, unsuitable stone particles will also be discharged, which is not convenient for rapid secondary screening and reduces practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of this application; In the figure: 1. Screening box; 2. Screening plate; 3. Driving motor 1; 4. Driving shaft 1; 5. Powder cutter; 6. Block plate; 7. Screen plate 1; 8. Screen plate 2; 9. Mesh hole 1; 10. Mesh hole 2; 11. Rod body; 12. Bevel gear 1; 13. Bevel gear 2; 14. Hand crank; 15. Box body; 16. Connecting pipe; 17. Pull-out plate; 18. Discharge pipe; 19. Screw conveyor; 20. Frame; 21. Shock-absorbing spring; 22. Mounting block; 23. Concave hole; 24. Conical block; 25. Stepping motor; 26. Driving shaft 2; 27. Support rod; 28. Feed hopper. DETAILED DESCRIPTION

[0013] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0014] In the description of this application, it should be understood that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0015] The terms "first," "second," and so on, used in this application are used to distinguish similar objects, not to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, allowing the embodiments of this application to be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first," "second," and so on generally represent a class and do not limit the number of objects. For example, the first object can be one or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the connected objects and a recycled concrete preparation and processing device.

[0016] Example 1: A recycled concrete preparation and processing device includes a screening box 1, a feed port arranged at the top of the screening box 1, a discharge port arranged at the bottom of the screening box 1, and a switch door arranged on the rear side wall of the screening box 1. It also includes a crushing assembly arranged in the middle section of the screening box 1, a filtering and adjusting assembly inclined between the crushing assembly and the discharge port for filtering powdered stone particles of different specifications, and a lifting assembly arranged on the outer wall of the screening box 1 for repeatedly crushing stone particles. The filtering and adjusting assembly includes a mesh plate 2 8 fixedly arranged on the inner wall of the screening box 1, an installation one movably arranged on the top of the mesh plate 2 8, a plurality of mesh holes 2 10 opened on the mesh plate 2 8, and a mesh hole 1 9 opened on the mesh plate 1 7 for use in conjunction with the mesh hole 2 10. A transmission assembly for driving the mesh plate 1 7 to rotate is provided at the bottom of the mesh plate 2 8.

[0017] The recycled concrete preparation and processing device includes a screening box 1, a feed port is provided at the top of the screening box 1, a discharge port is provided at the bottom of the screening box 1, and a switch door is provided on the rear side wall of the screening box 1. It also includes a crushing assembly provided in the middle section of the screening box 1, a filtering and adjusting assembly for filtering powdered stone particles of different specifications is provided obliquely between the crushing assembly and the discharge port, a lifting assembly for repeatedly crushing stone particles is provided on the outer wall of the screening box 1, the filtering and adjusting assembly includes a mesh plate 2 8 fixedly provided on the inner wall of the screening box 1, a mounting member movably provided on the top of the mesh plate 2 8, a plurality of mesh holes 2 10 are provided on the mesh plate 2 8, a mesh hole 9 used in conjunction with the mesh hole 2 10 is provided on the mesh plate 1 7, and a transmission assembly for driving the mesh plate 1 7 to rotate is provided at the bottom of the mesh plate 2 8. By setting up a filtering adjustment component, it is convenient to adjust the size of the contact surface between mesh 1 9 and mesh 2 10, thereby achieving the effect of filtering stones of different specifications; by setting mesh plate 1 7 and mesh plate 2 8 at an angle, it is convenient to make stones of larger specifications move along the inclined surface toward the lifting component; by setting up a lifting component, it is convenient to lift and transport stones of larger specifications, so that the stones are crushed and screened again through the crushing component. Compared with the existing technology, this solves the technical problem that the existing concrete stone screening device will have stones of different specifications when in use, so that when the stones are discharged, unsuitable stones will also be discharged, which is not convenient for rapid secondary screening and reduces practicality.

[0018] Furthermore, the transmission assembly includes a box 15 disposed at the bottom of screen plate 1 7, a rod 11 that extends through the bottom of screen plate 2 8 and is rotatably connected to the bottom of the box 15, and the top of the rod is fixedly connected to screen plate 1 7, a bevel gear 12 fixedly sleeved on the rod 11, a hand crank 14 that extends between the outer wall of the box 15 and the outer wall of the screening box 1, and a main gear 2 fixedly disposed at the right end of the hand crank 14 and meshing with the bevel gear 12. The transmission assembly drives the rotation of screen plate 1 7. During use, by rotating the hand crank 14, the hand crank 14 drives the bevel gear 2 13 to rotate, the bevel gear 2 13 drives the bevel gear 12 to rotate, the bevel gear 12 drives the rod 11 to rotate, and the rod 11 drives screen plate 1 7 to rotate on screen plate 2 8, thereby adjusting the size of the contact surface between mesh 1 9 and mesh 2 10.

[0019] Furthermore, the crushing assembly includes a screen plate 2 that is provided through the outer wall of the screening box 1, a baffle plate 6 that is provided through the outer wall of the powder box and is located below the screen plate 2, a drive motor 3 that is located between the screen plate 2 and the baffle plate 6 and is provided on the outer wall of the screening box 1, a drive shaft 4 that is provided through the outer wall of the screening box 1 and is fixedly connected to the output end of the drive motor 3 and rotates coaxially, a feed hopper 28 that is located between the screen plate 2 and the baffle plate 6 and is connected to the outer wall of the screening box 1, and a plurality of powder cutting knives 5 that are provided on the drive shaft 4. By providing the crushing assembly, the scraps are powder cut, which helps to further reduce the size of the stone particles; the screen plate 2 and the baffle plate 6 cooperate to form a crushing chamber, which is convenient for powder cutting of plastic; and the feed hopper 28 is provided to facilitate the direct feeding of stone particles into the crushing chamber through the feed hopper 28.

[0020] Furthermore, the lifting assembly includes a screw conveyor 19 vertically mounted on the outer wall of the screening box 1 and connected to the screening box 1 at its bottom via a connecting pipe 16. A discharge pipe 18 is mounted on top of the screw conveyor and cooperates with the feed port. Connecting pipe 16 is located between the baffle plate 6 and the mesh plate 7. A pull-out plate 17 extends through the top of connecting pipe 16. The lifting assembly facilitates the lifting and transport of larger-sized stones, allowing them to undergo further crushing and screening. When the lifting assembly is in use, by pulling up on the pull-out plate 17, the stones pass through the connecting pipe 16 into the screw conveyor and then through the discharge pipe 18 into the feed port above the screening box 1.

[0021] Furthermore, a feeding assembly for realizing intermittent feeding is provided at the feeding port, and the feeding assembly includes a frame 20 arranged on the top of the screening box 1 through a number of shock-absorbing springs 21, a mounting block 22 arranged at the bottom of the frame 20, a recessed hole 23 opened through the bottom of the mounting block 22, a support rod 27 horizontally arranged on the inner wall of the screening box 1, a stepper motor 25 arranged on the support rod 27, a drive shaft 26 fixedly connected to the output end of the stepper motor 25 and coaxially rotating, and a conical block 24 arranged at the top of the drive shaft 26 and used in conjunction with the recessed hole 23. By providing a feeding assembly, the stone particles lifted by the lifting assembly can be intermittently fed into the screening box 1 to avoid directly entering the screening box 1, thereby helping to reduce the load on the crushing assembly. By providing a stepper motor 25, intermittent contact between the conical block 24 and the inner surface of the recessed hole 23 can be achieved. By providing a shock-absorbing spring 21, telescopic movement of the frame 20 can be achieved to avoid damage to the feeding assembly due to excessive accidental collision of the conical block 24 with the mounting block 22.

[0022] A method for preparing a recycled concrete preparation and processing device comprises the following steps: S1, when adjusting the mesh size, by rotating the hand crank 14, the hand crank 14 drives the bevel gear 2 13 to rotate, the bevel gear 2 13 drives the bevel gear 1 12 to rotate, the bevel gear 1 12 drives the rod body 11 to rotate, and the rod body 11 drives the mesh plate 1 7 to rotate on the mesh plate 2 8, thereby adjusting the size of the contact surface between the mesh 1 9 and the mesh 2 10; S2, when using the lifting assembly, by pulling the pulling plate 17 upwards, the stone particles enter the screw feeder through the connecting pipe 16, and then enter the feed port above the screening box 1 through the discharge pipe 18.

[0023] The above-mentioned embodiments are only preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by technicians in this field based on the present application shall fall within the scope of protection required by the present application.

Claims

1. A recycled concrete preparation and processing device, comprising a screening box (1), a feed port arranged at the top of the screening box (1), a discharge port arranged at the bottom of the screening box (1), and a switch door arranged on the rear side wall of the screening box (1), characterized in that: The invention also includes a crushing assembly arranged in the middle section of the screening box (1), a filtering and adjusting assembly arranged obliquely between the crushing assembly and the discharge port for filtering powdered stone particles of different specifications, and a lifting assembly arranged on the outer wall of the screening box (1) for repeatedly crushing the stone particles. The filtering and adjusting assembly includes a mesh plate 2 (8) fixedly arranged on the inner wall of the screening box (1), a mounting assembly 1 movably arranged on the top of the mesh plate 2 (8), a plurality of mesh holes 2 (10) opened on the mesh plate 2 (8), a mesh hole 1 (9) opened on the mesh plate 1 (7) and used in conjunction with the mesh hole 2 (10), and a transmission assembly for driving the mesh plate 1 (7) to rotate is provided at the bottom of the mesh plate 2 (8).

2. A recycled concrete preparation and processing device according to claim 1, characterized in that: The transmission assembly includes a box body (15) arranged at the bottom of the screen plate 1 (7), a rod body (11) penetrating the bottom of the screen plate 2 (8) and rotatably connected to the bottom of the box body (15) and fixedly connected to the top of the screen plate 1 (7), a bevel gear 1 (12) fixedly sleeved on the rod body (11), a hand crank (14) penetrating between the outer wall of the box body (15) and the outer wall of the screening box (1), and a main gear 2 fixedly arranged at the right end of the hand crank (14) and meshing with the bevel gear 1 (12).

3. A recycled concrete preparation and processing device according to claim 1, characterized in that: The crushing assembly includes a screening plate (2) penetrating the outer wall of the screening box (1), a baffle plate (6) penetrating the outer wall of the powder box and located below the screening plate (2), a driving motor (3) located between the screening plate (2) and the baffle plate (6) and arranged on the outer wall of the screening box (1), a driving shaft (4) penetrating the outer wall of the screening box (1) and fixedly connected to the output end of the driving motor (3) for coaxial rotation, a feed hopper (28) located between the screening plate (2) and the baffle plate (6) and connected to the outer wall of the screening box (1), and a plurality of powder cutters (5) arranged on the driving shaft (4).

4. A recycled concrete preparation and processing device according to claim 3, characterized in that: The lifting assembly includes a screw conveyor (19) vertically arranged on the outer wall of the screening box (1) and connected to the screening box (1) at the bottom through a connecting pipe (16), and a discharge pipe (18) arranged on the top of the screw conveyor and used in conjunction with the feed port. The connecting pipe (16) is located between the baffle plate (6) and the mesh plate (7), and a pull-out plate (17) is provided through the top of the connecting pipe (16).

5. A recycled concrete preparation and processing device according to claim 1, characterized in that: A feeding assembly for realizing intermittent feeding is provided at the feeding port, and the feeding assembly comprises a frame (20) arranged on the top of the screening box (1) through a plurality of shock-absorbing springs (21), a mounting block (22) arranged at the bottom of the frame (20), a recessed hole (23) extending through the bottom of the mounting block (22), a support rod (27) horizontally arranged on the inner wall of the screening box (1), a stepping motor (25) arranged on the support rod (27), a driving shaft (26) fixedly connected to the output end of the stepping motor (25) and coaxially rotating, and a conical block (24) arranged at the top of the driving shaft (26) and used in conjunction with the recessed hole (23).

6. A method for preparing a recycled concrete preparation and processing device applicable to claim 1, characterized in that: The following steps are involved: S1, when adjusting the mesh size, by rotating the hand crank (14), the hand crank (14) drives the umbrella gear 2 (13) to rotate, the umbrella gear 2 (13) drives the umbrella gear 1 (12) to rotate, the umbrella gear 1 (12) drives the rod body (11) to rotate, and the rod body (11) drives the mesh plate 1 (7) to rotate on the mesh plate 2 (8), thereby achieving the size adjustment of the contact surface between the mesh 1 (9) and the mesh 2 (10); S2, when using the lifting assembly, by pulling the pull plate (17) upward, the stone particles enter the screw feeder through the connecting pipe (16), and then enter the feed port above the screening box (1) through the discharge pipe (18).

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