Recycling and crushing equipment for building construction materials
By incorporating a support plate, iron removal device, and drive assembly into a dual-shaft shredder, and utilizing electromagnets to separate steel bars and cement blocks, the problem of steel bars and cement blocks being mixed together is solved, achieving efficient classification and recycling of metal resources.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG ZHENGTAI IND EQUIP INSTALLATION CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-17
AI Technical Summary
When existing dual-shaft shredders shred concrete blocks, steel bars are mixed with the concrete blocks, making it impossible to classify and recycle metal resources, thus affecting resource recycling efficiency.
A crushing device was designed, comprising a support plate, an iron removal device, a material collection device, a limiting column, a limiting plate, and a drive assembly. It utilizes an electromagnet to attract and separate steel bars and cement blocks, and uses a cylinder to drive a lifting plate and a linkage plate to achieve the classified collection of steel bars.
It enables the effective separation and classified recycling of crushed steel bars and cement blocks, thereby improving the recycling efficiency of metal resources.
Smart Images

Figure CN224127479U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction material recycling technology, and in particular relates to a recycling and crushing equipment for building construction materials. Background Technology
[0002] A twin-shaft shredder is a commonly used device for recycling and crushing construction materials. It adopts a twin-shaft design, using two relatively rotating cutter rollers to shear, tear, and compress materials, crushing various building materials such as waste concrete blocks, bricks, wood, and plastics into smaller particles or flakes for subsequent transportation, processing, or reuse. It plays an important role in the field of construction waste recycling and processing.
[0003] The problem with existing technology is that when using existing dual-shaft shredders, operators directly put construction cement blocks into the inner cavity of the shredder for crushing. However, cement blocks usually contain steel bars, which are often crushed along with the cement blocks during the crushing process. After crushing, the steel bar fragments are usually mixed with the crushed cement blocks and fall onto the conveyor for recycling. During the conveying process, the steel bars and cement fragments are mixed together and cannot be directly sorted and recycled, resulting in a waste of metal resources and affecting resource recycling efficiency. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a recycling and crushing equipment for construction materials. It has the advantage of separating and collecting ferrous materials present in the crushed material, solving the problem that in existing twin-shaft shredders, operators directly put cement blocks into the shredder's inner cavity for crushing. However, cement blocks often contain reinforcing bars, which are usually crushed along with the cement blocks. After crushing, the steel bar fragments are often mixed with the crushed cement blocks and fall onto a conveyor for recycling. During this conveying process, the steel bars and cement fragments are mixed together, making direct sorting and recycling impossible, leading to a waste of metal resources and affecting resource recycling efficiency.
[0005] This utility model is implemented as follows: a recycling and crushing equipment for building construction materials includes a twin-shaft shredder and a conveyor. A support plate is provided on the front side of the twin-shaft shredder, and an iron removal device is provided on the front side of the support plate. A material collection device that works in conjunction with the iron removal device is provided on the rear side of the support plate. Limiting posts are provided on the left and right sides of the rear side of the support plate, and a limiting plate is provided on the rear side of the limiting posts. A drive assembly that works in conjunction with the iron removal device is provided on the top of the support plate.
[0006] In a preferred embodiment of this utility model, the rear side of the support plate is fixedly connected to the base of the dual-shaft shredder, the front and rear sides of the limiting column are fixedly connected to the support plate and the limiting plate respectively, and the left and right sides of the front side of the support plate are provided with limiting grooves for use with the iron removal device.
[0007] As a preferred embodiment of this utility model, the iron removal device includes a lifting plate, a plurality of electromagnets are evenly distributed at the bottom of the lifting plate, limit blocks are provided on the left and right sides of the rear side of the lifting plate, linkage plates are provided on the left and right sides of the lifting plate, and stroke holes are provided on the opposite sides of the two linkage plates.
[0008] As a preferred embodiment of the present invention, the receiving device includes a movable plate, with pushing columns provided on both the left and right sides of the movable plate, and a receiving box provided at the bottom of the movable plate, with multiple dispersing columns evenly distributed at the bottom of the receiving box.
[0009] In a preferred embodiment of this invention, the driving assembly includes a cylinder, the bottom of which is fixedly connected to a support plate, a driving plate is fixedly connected to the output end of the cylinder, a connecting column is fixedly connected to the bottom of the driving plate on the side away from the cylinder, and the bottom of the connecting column is fixedly connected to a lifting plate.
[0010] In a preferred embodiment of this invention, the top of the electromagnet is fixedly connected to the lifting plate, the front side of the limiting block is fixedly connected to the lifting plate, the rear side of the limiting block passes through the limiting groove and extends into the inner cavity of the limiting groove to contact the inner wall of the limiting groove, and the side of the linkage plate near the lifting plate is fixedly connected to the lifting plate.
[0011] In a preferred embodiment of this utility model, the movable plate is sleeved on the surface of the limiting post and is slidably connected to the limiting post via a linear bearing. The side of the pushing post close to the movable plate is fixedly connected to the movable plate, and the side of the pushing post away from the movable plate passes through the stroke hole and extends into the inner cavity of the stroke hole to contact the inner wall of the stroke hole. The top of the receiving box is fixedly connected to the movable plate, and the top of the dispersing post is fixedly connected to the receiving box.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model solves the problem of existing dual-shaft shredders where operators directly put large cement blocks into the shredder's inner cavity for crushing. Cement blocks often contain reinforcing bars, which are crushed along with the cement blocks. After crushing, the steel fragments are mixed with the crushed cement blocks and fall onto a conveyor for recycling. This mixing of steel fragments during transport makes direct sorting and recycling impossible, leading to wasted metal resources and reduced recycling efficiency.
[0014] 2. This utility model can support the drive component by setting a support plate, support and limit the moving plate by setting a limiting post and a limiting plate, and limit the lifting plate by setting a limiting groove.
[0015] 3. By setting up an iron removal device, this utility model can adsorb and separate the metal materials present in the crushed cement blocks, making it convenient for users to recycle building materials.
[0016] 4. By setting up a material collection device, this utility model can collect the separated metal materials and disperse the materials on the top of the conveyor, making it convenient for the iron removal device to adsorb the metal materials.
[0017] 5. This utility model, by setting up a drive assembly, can drive the iron removal device; by setting up a cylinder, it can drive the drive plate to rise and fall; by setting up the drive plate and connecting column, it can drive the lifting plate to rise and fall synchronously.
[0018] 6. This utility model, by setting a lifting plate, can drive the electromagnet and the linkage plate to lift synchronously. By setting the electromagnet, it can adsorb and separate the metal materials mixed in the crushed cement block. By setting the linkage plate and the stroke hole, it can squeeze and push the push column through the stroke hole during the lifting and lowering of the linkage plate, and push the push column to move.
[0019] 7. This utility model, by setting a pushing column, can drive the moving plate to move. By setting the moving plate, it can drive the receiving box to move. By setting the receiving box, it can collect the adsorbed metal material. By setting a dispersing column, it can disperse the cement blocks on the top of the conveyor during the movement of the collecting box, so as to facilitate the electromagnet to adsorb the metal material. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present utility model;
[0021] Figure 2 This is a three-dimensional structural diagram of the driving component provided in an embodiment of the present utility model;
[0022] Figure 3 The present invention provides a support plate and a limiting groove.
[0023] Figure 4 This is a three-dimensional structural diagram of the iron removal device and the material collection device provided in the embodiment of this utility model.
[0024] In the diagram: 1. Twin-shaft shredder; 2. Conveyor; 3. Support plate; 4. Iron removal device; 5. Receiving device; 6. Limiting column; 7. Limiting plate; 8. Drive assembly; 9. Limiting groove; 401. Lifting plate; 402. Electromagnet; 403. Limiting block; 404. Linkage plate; 405. Stroke hole; 501. Moving plate; 502. Pushing column; 503. Receiving box; 504. Dispersing column; 801. Cylinder; 802. Drive plate; 803. Connecting column. Detailed Implementation
[0025] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0026] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0027] like Figures 1 to 4 As shown in the figure, the present invention provides a recycling and crushing equipment for building construction materials, including a dual-shaft shredder 1 and a conveyor 2. A support plate 3 is provided on the front side of the dual-shaft shredder 1, an iron removal device 4 is provided on the front side of the support plate 3, a material collection device 5 is provided on the rear side of the support plate 3 in conjunction with the iron removal device 4, limit posts 6 are provided on the left and right sides of the rear side of the support plate 3, a limit plate 7 is provided on the rear side of the limit posts 6, and a drive assembly 8 in conjunction with the iron removal device 4 is provided on the top of the support plate 3.
[0028] refer to Figure 1 , Figure 3 and Figure 4 The rear side of the support plate 3 is fixedly connected to the base of the dual-shaft shredder 1. The front and rear sides of the limiting column 6 are fixedly connected to the support plate 3 and the limiting plate 7 respectively. The left and right sides of the front side of the support plate 3 are provided with limiting grooves 9 for use with the iron removal device 4.
[0029] The above scheme is adopted as follows: by setting the support plate 3, the drive component 8 can be supported; by setting the limiting column 6 and the limiting plate 7, the moving plate 501 can be supported and limited; and by setting the limiting groove 9, the lifting plate 401 can be limited.
[0030] refer to Figure 4The iron removal device 4 includes a lifting plate 401. Multiple electromagnets 402 are evenly distributed at the bottom of the lifting plate 401. Limit blocks 403 are provided on the left and right sides of the rear side of the lifting plate 401. Linkage plates 404 are provided on the left and right sides of the lifting plate 401. Stroke holes 405 are opened on the opposite side of the two linkage plates 404.
[0031] The above solution involves setting up an iron removal device 4 to adsorb and separate the metal materials present in the crushed cement blocks, making it convenient for users to recycle building materials.
[0032] refer to Figure 4 The receiving device 5 includes a moving plate 501, with pushing columns 502 on both the left and right sides of the moving plate 501, and a receiving box 503 at the bottom of the moving plate 501, with multiple dispersing columns 504 evenly distributed at the bottom of the receiving box 503.
[0033] The above scheme is adopted: by setting up the material collection device 5, the separated metal materials can be collected, and the materials on the top of the conveyor 2 can be dispersed, so that the iron removal device 4 can adsorb the metal materials.
[0034] refer to Figure 2 The drive assembly 8 includes a cylinder 801. The bottom of the cylinder 801 is fixedly connected to the support plate 3. The output end of the cylinder 801 is fixedly connected to a drive plate 802. A connecting column 803 is fixedly connected to the bottom of the drive plate 802 on the side away from the cylinder 801. The bottom of the connecting column 803 is fixedly connected to the lifting plate 401.
[0035] The above scheme is adopted: by setting the drive component 8, the iron removal device 4 can be driven; by setting the cylinder 801, the drive plate 802 can be raised and lowered; by setting the drive plate 802 and the connecting column 803, the lifting plate 401 can be raised and lowered synchronously.
[0036] refer to Figure 3 and Figure 4 The top of the electromagnet 402 is fixedly connected to the lifting plate 401, the front side of the limiting block 403 is fixedly connected to the lifting plate 401, the rear side of the limiting block 403 passes through the limiting groove 9 and extends into the inner cavity of the limiting groove 9 to contact the inner wall of the limiting groove 9, and the side of the linkage plate 404 near the lifting plate 401 is fixedly connected to the lifting plate 401.
[0037] The above scheme is adopted as follows: by setting up the lifting plate 401, the electromagnet 402 and the linkage plate 404 can be driven to lift synchronously. By setting up the electromagnet 402, the metal materials mixed in the crushed cement block can be adsorbed and separated. By setting up the linkage plate 404 and the stroke hole 405, the push column 502 can be squeezed and pushed to move through the stroke hole 405 during the lifting of the linkage plate 404.
[0038] refer to Figure 4 The movable plate 501 is sleeved on the surface of the limiting post 6 and is slidably connected to the limiting post 6 through a linear bearing. The side of the pushing post 502 close to the movable plate 501 is fixedly connected to the movable plate 501, and the side of the pushing post 502 away from the movable plate 501 passes through the stroke hole 405 and extends into the inner cavity of the stroke hole 405 to contact the inner wall of the stroke hole 405. The top of the receiving box 503 is fixedly connected to the movable plate 501, and the top of the dispersing post 504 is fixedly connected to the receiving box 503.
[0039] The above scheme is adopted as follows: by setting the push column 502, the moving plate 501 can be moved; by setting the moving plate 501, the receiving box 503 can be moved; by setting the receiving box 503, the adsorbed metal material can be collected; by setting the dispersion column 504, the cement block on the top of the conveyor 2 can be dispersed during the movement of the collecting box, so that the electromagnet 402 can adsorb the metal material.
[0040] The working principle of this utility model:
[0041] When in use, after the dual-shaft shredder 1 has finished crushing the material, the material will fall into the top of the conveyor 2 inside the base of the dual-shaft shredder 1. The conveyor 2 will transport the processed material. At the same time, the output shaft of the cylinder 801 will retract, driving the drive plate 802 and the connecting column 803 to move downward synchronously. During the downward movement of the connecting column 803, the lifting plate 401 will move downward synchronously. The lifting plate 401 will drive the linkage plate 404 and the electromagnet 402 to move downward synchronously. When the electromagnet 402 reaches the appropriate position, the electromagnet 402 will be activated, so that the electromagnet 402 generates a strong magnetic attraction to attract the iron material present in the processed material.
[0042] As the linkage plate 404 moves downward, it will squeeze and push the column 502 through the stroke hole 405. The squeezing force generated at this time will push the column 502 to move backward. The column 502 will drive the moving plate 501 to move backward on the surface of the limiting column 6. The moving plate 501 will drive the receiving box 503 and the dispersing column 504 to move backward synchronously. During the movement, the dispersing column 504 will disperse the material falling into the top of the conveyor 2, so that the electromagnet 402 can attract the iron material in the material.
[0043] After adsorption is complete, the output shaft of the starting cylinder 801 extends, driving the drive plate 802 and the connecting column 803 to move upward synchronously. During the upward movement of the connecting column 803, the lifting plate 401 moves upward synchronously. The lifting plate 401 drives the linkage plate 404 and the electromagnet 402 to move upward synchronously. During the upward movement of the linkage plate 404, the pushing column 502 is squeezed through the stroke hole 405. The squeezing force generated at this time will push the pushing column 502 forward. The pushing column 502 will drive the moving plate 501 to move forward on the surface of the limiting column 6. The moving plate 501 will drive the receiving box 503 and the dispersing column 504 to move forward synchronously. When the electromagnet 402 reaches the appropriate position, the receiving box 503 also moves back to the bottom of the electromagnet 402. At the same time, the electromagnet 402 is turned off, so that the electromagnet 402 no longer generates strong magnetic attraction. At this time, the iron material adsorbed on the surface of the electromagnet 402 will fall into the inner cavity of the receiving box 503 for collection.
[0044] In summary, this construction material recycling and crushing equipment, through the coordinated use of support plate 3, iron removal device 4, material receiving device 5, limiting column 6, limiting plate 7, and drive assembly 8, solves the problem of existing dual-shaft shredders where operators directly feed large cement blocks into the shredder's inner cavity for crushing. However, cement blocks often contain reinforcing steel bars, which are crushed along with the cement blocks. After crushing, the steel bar fragments are mixed with the crushed cement blocks and fall onto a conveyor for recycling. During this conveying process, the steel bars and cement fragments are mixed together, making direct sorting and recycling impossible, leading to a waste of metal resources and affecting resource recycling efficiency.
[0045] It should be noted that the cylinder and electromagnet are existing devices or equipment, or devices or equipment that can be implemented by existing technology, and the specific components and principles of the power supply of the cylinder and electromagnet are clear to those skilled in the art, so they will not be described in detail here.
[0046] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A recycling and crushing device for building construction materials, comprising a twin-shaft shredder (1) and a conveyor (2), characterized in that: The front side of the dual-shaft shredder (1) is provided with a support plate (3), the front side of the support plate (3) is provided with an iron removal device (4), the rear side of the support plate (3) is provided with a material receiving device (5) that works in conjunction with the iron removal device (4), the left and right sides of the rear side of the support plate (3) are provided with limit posts (6), the rear side of the limit posts (6) is provided with a limit plate (7), and the top of the support plate (3) is provided with a drive assembly (8) that works in conjunction with the iron removal device (4).
2. A recycling crushing apparatus for construction materials according to claim 1, characterized in that: The rear side of the support plate (3) is fixedly connected to the base of the dual-shaft shredder (1). The front and rear sides of the limiting column (6) are fixedly connected to the support plate (3) and the limiting plate (7) respectively. The left and right sides of the front side of the support plate (3) are provided with limiting grooves (9) for use with the iron removal device (4).
3. The recycling crushing apparatus for a building construction material according to claim 1, characterized in that: The iron removal device (4) includes a lifting plate (401), a plurality of electromagnets (402) are evenly distributed at the bottom of the lifting plate (401), a limit block (403) is provided on the left and right sides of the rear side of the lifting plate (401), a linkage plate (404) is provided on the left and right sides of the lifting plate (401), and a stroke hole (405) is provided on the opposite side of the two linkage plates (404).
4. The recycling crushing apparatus for a building construction material according to claim 1, characterized in that: The receiving device (5) includes a moving plate (501), with pushing columns (502) provided on the left and right sides of the moving plate (501), and a receiving box (503) provided at the bottom of the moving plate (501), with multiple dispersing columns (504) evenly distributed at the bottom of the receiving box (503).
5. The recycling crushing apparatus for a building construction material according to claim 1, characterized in that: The drive assembly (8) includes a cylinder (801), the bottom of which is fixedly connected to a support plate (3), and a drive plate (802) is fixedly connected to the output end of the cylinder (801). A connecting column (803) is fixedly connected to the bottom of the drive plate (802) on the side away from the cylinder (801), and the bottom of the connecting column (803) is fixedly connected to a lifting plate (401).
6. A recycling crushing apparatus for construction materials according to claim 3, characterized in that: The top of the electromagnet (402) is fixedly connected to the lifting plate (401), the front side of the limiting block (403) is fixedly connected to the lifting plate (401), the rear side of the limiting block (403) passes through the limiting groove (9) and extends to the inner cavity of the limiting groove (9) to contact the inner wall of the limiting groove (9), and the linkage plate (404) is fixedly connected to the lifting plate (401) on the side close to the lifting plate (401).
7. A recycling crushing apparatus for construction materials according to claim 4, characterized in that: The movable plate (501) is sleeved on the surface of the limiting post (6) and is slidably connected to the limiting post (6) through a linear bearing. The side of the pushing post (502) close to the movable plate (501) is fixedly connected to the movable plate (501). The side of the pushing post (502) away from the movable plate (501) passes through the stroke hole (405) and extends to the inner cavity of the stroke hole (405) and contacts the inner wall of the stroke hole (405). The top of the receiving box (503) is fixedly connected to the movable plate (501), and the top of the dispersing post (504) is fixedly connected to the receiving box (503).