Building construction waste steel recovery treatment equipment

Abstract

The invention discloses building construction waste steel recovery treatment equipment, and relates to the technical field of waste steel recovery. Comprising a conveying section, a rolling section and a stripping section, the conveying section, the rolling section and the glass section are sequentially arranged in the material advancing direction, the rolling section comprises a portal frame, an oil cylinder, a crushing mechanism and a stretcher, the stretcher comprises two frame plates, the two frame plates are arranged on the two sides of the portal frame respectively, and concrete blocks passing through the conveying section just pass through the frame plates. Through arrangement of the conveying section, the rolling section and the stripping section, all the sections are clear in function and are tightly matched with one another, the barbed nails of the conveying section can effectively prevent concrete blocks from slipping or shifting in the conveying process, it is ensured that the concrete blocks accurately enter the subsequent treatment link, the rolling section can accurately crush the concrete blocks, and the service life of the concrete blocks is prolonged. Bidirectional rolling and friction cleaning are combined in design of the stripping section, shearing force is applied through the protruding edges, the steel bars are forced to keep a linear motion trail, and offset clamping stagnation is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of scrap steel recycling, and particularly to a construction waste steel recycling and processing device. Background Technique

[0002] As the core load-bearing material of building construction, steel bars are widely used in concrete structures to enhance their strength and stability. During the construction of a house, steel bars are extensively used in key parts such as beams, columns, and floors to ensure that the building can withstand various loads and external forces. When the house reaches the end of its service life or needs to be demolished for other reasons, although these steel bars lose their original functions with the demolition of the house, their materials themselves have not completely lost their value. Steel bars are mainly composed of iron elements and have good recyclability. Through professional recycling and processing, they can be remelted and processed into new steel products, realizing the recycling of resources. Recycling waste steel bars can also reduce the demand for new steel production, reduce energy consumption and environmental pollution in the processes of iron ore mining, ironmaking, and steelmaking, which conforms to the concept of sustainable development.

[0003] Steel bars are often closely intertwined with materials such as concrete and masonry in construction waste and are difficult to be separated by simple manual sorting. There are also few devices specifically for recycling waste steel in construction waste on the market. Mainly, concrete blocks or concrete slabs are broken by an excavator or an excavator breaker hammer, and then the steel bars inside are picked out. This method is extremely inefficient and costly. Therefore, a more applicable recycling and processing device for construction waste steel is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction waste steel recycling and processing device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A construction waste steel recycling and processing device, including: A conveying section, a rolling section, and a peeling section, and the conveying section, the rolling section, and the peeling section are sequentially arranged along the material traveling direction; The rolling section includes a gantry, an oil cylinder, a crushing mechanism, and a stretcher. The stretcher includes two frame plates, and both of the two frame plates are respectively arranged on both sides of the gantry. The concrete block passing through the conveying section just passes through the frame plates. The oil cylinder and the crushing mechanism are installed at the top of the gantry, and the crushing mechanism is pressed vertically downward towards the stretcher through the oil cylinder; A crushing roller is arranged at the peeling mechanism. After the concrete block is crushed, the steel bars are exposed, and the steel bars are peeled off the adhered concrete on the surface after passing through the crushing roller.

[0006] Furthermore, regarding this solution, the conveying section includes a conveying frame. A number of conveying rollers are rotatably installed between the two ends of the conveying frame. A driving assembly is provided on one side of one of the conveying frames to control the rotation of the conveying rollers. Spike nails are provided on the surfaces of the conveying rollers.

[0007] Furthermore, regarding this solution, one end of the conveying frame is installed on both sides of the gantry. The stretcher includes two frame plates, and both of the two frame plates are respectively arranged on both sides of the gantry. The tops of the two frame plates are both flat, and the top height of the frame plate is consistent with the conveying plane of the conveying rollers.

[0008] Furthermore, regarding this solution, a gap is provided between the two frame plates, and a C-shaped connecting plate is also provided between the two ends of the two frame plates. The C-shaped connecting plate connects the two frame plates.

[0009] Furthermore, regarding this solution, the crushing mechanism includes a hanging plate. C-shaped frame plates are fixed at both ends of the hanging plate. The C-shaped frame plates wrap around both sides of the gantry, and the C-shaped frame plates slide on both sides of the gantry. The oil cylinder is connected to the hanging plate.

[0010] Furthermore, regarding this solution, a reinforcing beam is provided between the tops of the gantry to improve the strength. The oil cylinder is installed at the reinforcing beam, and the telescopic end of the oil cylinder is fixed at the center of the top of the hanging plate.

[0011] Furthermore, regarding this solution, a rolling plate is installed at the bottom of the hanging plate. A pointed cone convex rib is provided at the center of the bottom of the rolling plate, and the width of the pointed cone convex rib is not greater than the gap between the two frame plates.

[0012] Furthermore, regarding this solution, two hooks are also fixed at the top of the hanging plate. Two hook springs are provided at the reinforcing beam, and the other ends of the hook springs are connected to the hooks to increase the smoothness during the movement stroke of the crushing mechanism.

[0013] Furthermore, regarding this solution, the peeling mechanism includes two groups of side frames. Each group of side frames is provided with two frame rods. The end of each frame rod far from the gantry is inclined, and the two frame rods in each group are symmetrically arranged up and down. Two crushing rollers are rotatably installed between the two groups of frame rods. A driving source is installed at one of the frame rods, and the output end of the driving source is fixed at one end of one of the crushing rollers. Convex ribs are provided on the surface of the crushing rollers. Guide plates are fixed between the tops and bottoms of the adjacent frame rods on both sides to guide the exposed steel bars after crushing towards the crushing rollers.

[0014] Furthermore, regarding this solution, a crusher is also installed between the gantries. The opening of the crusher faces upwards and is directly opposite to the gap between the two frame plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are: Through the settings of the conveying section, rolling section and stripping section, the functions of each section are clear and cooperate closely with each other. The stud design of the conveying section can effectively prevent the concrete blocks from slipping or shifting during the conveying process, ensuring accurate entry into the subsequent treatment links. The rolling section can achieve precise crushing of the concrete blocks. The combined design of two-way rolling and friction cleaning in the stripping section applies a shearing force through the convex ridges to force the steel bars to maintain a linear movement trajectory, preventing deviation and jamming. Multi-stage crushing basically separates the concrete from the steel bars, realizing the clean recycling of the steel bars and the classified collection of the aggregates, with a high recycling efficiency of the steel bars in the construction waste.

[0016] At the same time, the synchronously rotating conveying rollers in the conveying section, the reinforcing beams and U-shaped connecting plates in the rolling section, etc., enhance the overall strength and impact resistance of the equipment, extend the service life, and reduce the maintenance and replacement costs. In addition, the multi-stage crushing and separation design of the equipment completely separates the concrete from the steel bars, improves the purity of the recycled steel bars, and increases their market value and reusability. Brief Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the left axonometric structural schematic diagram of the present invention; Figure 3 is the structural schematic diagram of the positions of the crushing mechanism and the stripping mechanism of the present invention; Figure 4 is the structural schematic diagram from the side view angle of the present invention.

[0018] In the figure: 1, conveying frame; 2, conveying roller; 3, support foot; 4, drive assembly; 5, gantry; 501, mounting hole; 6, reinforcing beam; 7, oil cylinder; 8, crushing mechanism; 801, hanging plate; 802, U-shaped frame plate; 803, hook; 804, hook spring; 805, rolling plate; 806, pointed cone convex ridge; 9, stretcher; 901, frame plate; 902, U-shaped connecting plate; 10, stripping mechanism; 1001, rack; 1002, guiding plate; 1003, crushing roller; 1004, drive source; 11, crusher. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Such as Figure 1As shown in the figure, the present invention provides a technical solution: a construction waste steel recycling and processing device, including a conveying section, a rolling section, and a stripping section. This device is used to recycle the steel bars in concrete blocks or wall panels after building crushing, and is particularly suitable for centralized treatment of recycled building concrete. The concrete blocks containing steel bars are conveyed to the rolling section through the conveying section. At the rolling section, the concrete blocks are rolled and crushed. Based on the physical properties of concrete and steel bars, the concrete is crushed first to make the concrete peel off the surface of the steel bars as much as possible. Finally, the remaining concrete adhered to the steel bars is removed through the stripping section, improving the recycling efficiency of the steel bars in the concrete blocks during the construction process.

[0021] As Figure 1 and Figure 2 shown in the figure, to ensure the smooth implementation of the above embodiments, it should be understood that the conveying section includes a conveying frame 1. A number of conveying rollers 2 are rotatably installed between the two sides of the conveying frame 1. On one side of the conveying frame 1, a driving assembly 4 is provided to control the rotation of the conveying rollers 2. It should be understood that the driving assembly 4 is a power device that can control the synchronous rotation of the conveying rollers 2, and can be a power device with belt drive or gear drive. This is prior art and will not be elaborated here. Regarding this embodiment, the surfaces of the conveying rollers 2 are all provided with barbs, which can improve the stability of conveying when conveying large-area and relatively smooth concrete parts such as wall panels. The distance between every two conveying rollers 2 is not greater than 5 cm to prevent the concrete blocks from being stuck between the two conveying rollers 2 and reduce the dropping of concrete slag. At the feeding end of the conveying frame 1, a support leg 3 is provided to ensure the overall stability of the conveying section.

[0022] As Figure 2 and Figure 3 shown in the figure, the rolling section includes a gantry 5, an oil cylinder 7, a crushing mechanism 8, and a stretcher 9. Among them, one end of the conveying frame 1 is installed on both sides of the gantry 5. The stretcher 9 is a platform for crushing concrete blocks. The stretcher 9 includes two frame plates 901, and both of the two frame plates 901 are respectively arranged on both sides of the gantry 5. That is to say, the two frame plates 901 are respectively arranged on the side close to the conveying section and on the side of the stripping section. The tops of the two frame plates 901 are both flat. The top height of the frame plate 901 is the same as or slightly lower than the conveying plane of the conveying rollers 2. The concrete blocks passing through the conveying section can just pass through the frame plate 901, and the barbs on the conveying rollers 2 can also push the concrete blocks or concrete wall panels onto the stretcher 9; As Figure 2As shown, it should be noted that there is a gap between the two shelf plates 901. This gap is the direct force-bearing part of the concrete block. There is also a U-shaped connecting plate 902 between the two ends of the two shelf plates 901. The U-shaped connecting plate 902 connects the two shelf plates 901, making the shelf plates 901 not only fixed to the gantry 5. After being connected by the U-shaped connecting plate 902, the connection strength between the two shelf plates 901 is higher, increasing the structural strength of the shelf plates 901 and improving the impact resistance ability. As Figure 3 and Figure 4 As shown, to achieve the rolling effect on the concrete block, a reinforcing beam 6 is provided between the tops of the gantries 5 to improve the strength. The oil cylinder 7 is installed at the reinforcing beam 6. Among them, the crushing mechanism 8 includes a hanging plate 801. At both ends of the hanging plate 801, U-shaped frame plates 802 are fixed. The U-shaped frame plates 802 are wrapped around both sides of the gantry 5, and the U-shaped frame plates 802 slide on both sides of the gantry 5. The oil cylinder 7 is connected to the hanging plate 801. The hanging plate 801 is lifted and lowered in the vertical direction by the oil cylinder 7. At the bottom of the hanging plate 801, a rolling plate 805 is installed. At the center of the bottom of the rolling plate 805, a pointed cone convex rib 806 is provided. During the operation, the pointed cone convex rib 806 makes direct contact with the concrete block for the first step. It should be noted that the width of the pointed cone convex rib 806 is not greater than the gap between the two shelf plates 901, which can concentrate the force-bearing position on the concrete block. That is to say, this rolling section is driven by the oil cylinder 7 to control the hanging plate 801 to move downward and contact the concrete block to achieve the rolling and crushing of the concrete block. It should be known that the oil cylinder 7 presses and crushes the concrete block at a constant speed, and the stroke speed of the oil cylinder 7 is not greater than 0.5 m / s, so that the pointed cone convex rib 806 can contact the concrete block in a pressing manner, avoiding the situation of stone flying caused by impact crushing and reducing the safety hazard of the equipment.

[0023] At the top of the hanging plate 801, two hooks 803 are also fixed. At the reinforcing beam 6, two hook springs 804 are provided. The other ends of the hook springs 804 are connected to the hooks 803 to increase the smoothness of the movement stroke of the crushing mechanism 8 through the springs.

[0024] As Figure 3 and Figure 4As shown, to ensure the smooth implementation of this embodiment, it should be noted that the stripping mechanism 10 includes two groups of side frames. Each group of side frames is provided with two frame rods 1001. One end of each frame rod 1001 away from the gantry 5 is inclined, and the two frame rods 1001 in each group are symmetrically arranged up and down. That is to say, the ends of the two side frames close to the gantry 5 are in a wide-mouth shape, and the ends of the side frames away from the gantry 5 are in a narrow-mouth shape. Two crushing rollers 1003 are rotatably installed between the two groups of frame rods 1001. A driving source 1004 is installed at one of the frame rods 1001. The output end of the driving source 1004 is fixed to one end of one of the crushing rollers 1003. The surface of the crushing roller 1003 is provided with convex ridges, which can improve the crushing ability of concrete blocks. Guide plates 1002 are fixed between the tops and bottoms of the adjacent frame rods 1001 on both sides, for guiding the exposed steel bars after crushing towards the crushing rollers 1003 to prevent dislocation.

[0025] As Figure 3 As shown, in the above embodiment, mounting holes 501 are provided at various positions of the gantry 5. At the positions where the conveying frame 1 and the frame rods 1001 of the stripping mechanism 10 are in direct contact with the gantry 5, they are fixedly installed by bolts or pins passing through the mounting holes 501, ensuring the structural strength and reducing the difficulty of disassembly and assembly.

[0026] In summary, the device is a waste steel recycling device specifically used for processing concrete generated in building construction. The conveying section drives the conveying rollers 2 with barbs on the surface to rotate synchronously through the driving assembly 4. The barbs embed into the surface of the concrete blocks to enhance the friction force, preventing large-sized or smooth wall panels from slipping or shifting during the conveying process, and enabling the concrete blocks to accurately enter the two mounting plates 901 in the rolling section. The gap position between the two mounting plates 901 corresponds to the width of the pointed cone ridges 806, providing a spatial basis for subsequent crushing. The oil cylinder 7 in the rolling section drives the crushing mechanism 8 to press vertically at a constant speed (≤0.5 m / s). The pointed cone ridges 806 at the bottom of the hanging plate 801 first top at the center of the concrete block, forming longitudinal cracks by utilizing the characteristic of low compressive strength of concrete. As the oil cylinder 7 continues to apply pressure, the cracks expand along the surface of the steel bars, and the bonding interface between the concrete and the steel bars gradually separates. When the pressure reaches the preset threshold, the oil cylinder 7 resets, and the residual concrete further disintegrates due to stress release, the steel bars are initially exposed, and large concrete blocks fall off. The stripping section further processes the concrete blocks by combining up-and-down two-way rolling and friction cleaning. The preliminarily processed steel bar mixture enters between the crushing rollers 1003 through the V-shaped guiding plate 1002. The driving source 1004 drives the crushing rollers 1003 with ridges on the surface to rotate, and the ridges apply a shearing force to the residual concrete on the surface of the steel bars. The narrow opening design of the guiding plate 1002 forces the steel bars to maintain a linear movement trajectory, preventing deviation and jamming. During the entire stripping process, the concrete fragments are basically separated from the steel bars after multi-stage crushing, finally achieving the clean recycling of the steel bars and the classified collection of the aggregates. A crusher 11 is also installed between the gantry frames 5. The crusher 11 has an upward opening and is directly opposite to the gap between the two mounting plates 901, capable of crushing the fallen concrete to avoid stone accumulation and facilitate subsequent processing. It should be noted that when using this device to recycle steel bars, when loading the concrete blocks or concrete wall panels, the orientation of the steel bars in the concrete should be basically confirmed, and the steel bars should be roughly oriented towards the conveying material direction of this recycling and processing device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended embodiments and their equivalents.

Claims

1. A construction waste steel recycling and processing equipment, characterized in that: Including: A conveying section, a rolling section, and a stripping section, which are arranged in sequence along the material traveling direction; The rolling section includes a gantry (5), an oil cylinder (7), a crushing mechanism (8), and a stretcher (9). The stretcher (9) includes two shelf plates (901), and the two shelf plates (901) are respectively arranged on both sides of the gantry (5). The concrete blocks passing through the conveying section just pass through the shelf plates (901). The oil cylinder (7) and the crushing mechanism (8) are installed at the top of the gantry (5), and the crushing mechanism (8) is used to roll vertically downward towards the stretcher (9) through the oil cylinder (7); A crushing roller (1003) is arranged at the stripping mechanism (10). After the concrete blocks are crushed, the steel bars are exposed. After passing through the crushing roller (1003), the concrete adhered to the surface of the steel bars is stripped.

2. The construction waste steel recycling and processing equipment according to claim 1 is characterized by: The conveying section includes a conveying frame (1). A plurality of conveying rollers (2) are rotatably installed between both sides of the conveying frame (1). A driving assembly (4) is arranged on one side of one of the conveying frames (1) to control the rotation of the conveying rollers (2), and spike nails are arranged on the surfaces of the conveying rollers (2).

3. The construction waste steel recycling and processing equipment according to claim 2 is characterized by: One end of the conveying frame (1) is installed on both sides of the gantry (5). The stretcher (9) includes two shelf plates (901), and the two shelf plates (901) are respectively arranged on both sides of the gantry (5). The tops of the two shelf plates (901) are both flat, and the top height of the shelf plate (901) is consistent with the conveying plane of the conveying roller (2).

4. The construction waste steel recycling and processing equipment according to claim 3 is characterized by: A gap is arranged between the two shelf plates (901), and a U-shaped connecting plate (902) is also arranged between the two ends of the two shelf plates (901). The U-shaped connecting plate (902) connects the two shelf plates (901).

5. The construction waste steel recycling and processing equipment according to claim 1 is characterized by: The crushing mechanism (8) includes a hanging plate (801). C-shaped frame plates (802) are fixed at both ends of the hanging plate (801). The C-shaped frame plates (802) wrap around both sides of the gantry (5), and the C-shaped frame plates (802) slide on both sides of the gantry (5). The oil cylinder (7) is connected to the hanging plate (801).

6. The construction waste steel recycling and processing equipment according to claim 5 is characterized by: A reinforcing beam (6) is arranged between the tops of the gantry (5) to improve the strength. The oil cylinder (7) is installed at the reinforcing beam (6), and the telescopic end of the oil cylinder (7) is fixed at the center of the top of the hanging plate (801).

7. The construction waste steel recycling and processing equipment according to claim 6 is characterized by: A rolling plate (805) is installed at the bottom of the hanging plate (801). A pointed cone convex rib (806) is arranged at the center of the bottom of the rolling plate (805), and the width of the pointed cone convex rib (806) is not greater than the gap between the two shelf plates (901).

8. The construction waste steel recycling and processing equipment according to claim 5 is characterized by: Two hooks (803) are also fixed at the top of the hanging plate (801). Two hook springs (804) are arranged at the reinforcing beam (6), and the other ends of the hook springs (804) are connected to the hooks (803) to increase the smoothness of the crushing mechanism (8) during the movement stroke.

9. The construction waste steel recycling and processing equipment according to claim 1, characterized in that: The stripping mechanism (10) comprises two groups of side frames, each group of side frames is provided with two racks (1001), one end of each rack (1001) away from the gantry (5) is tilted, and the two racks (1001) of each group are symmetrically arranged up and down, two crushing rollers (1003) are rotatably installed between the two groups of racks (1001), a driving source (1004) is installed at one of the racks (1001), the output end of the driving source (1004) is fixed to one end of one of the crushing rollers (1003), the surface of the crushing roller (1003) is provided with convex ridges, and guide plates (1002) are fixed between the top and bottom of the adjacent racks (1001) on both sides, and are used to guide the exposed steel bars after crushing to the crushing rollers (1003).

10. The construction waste steel recycling and processing equipment according to claim 3, characterized in that: A crusher (11) is also installed between the gantry frames (5), with the opening of the crusher (11) facing upward and directly facing the gap between the two frame plates (901).

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