Efficient waste concrete member static pressure crushing equipment

Abstract

The utility model relates to the technical field of crushing equipment, and discloses efficient waste concrete member static pressure crushing equipment which comprises a static pressure crusher body, a feeding conveyor is arranged on the static pressure crusher body, and the feeding conveyor is used for conveying waste concrete members; the detection assembly comprises a detection piece and a telescopic rod, the detection piece is installed on the static pressure crusher body through the telescopic rod, and the detection piece is used for detecting the position of a reinforcement cage in the waste concrete member; the cross-shaped pressure head is mounted on the static pressure crusher body through a static pressure oil cylinder and is used for performing static pressure crushing on the waste concrete member; and the static pressure oil cylinder, the telescopic rod and the detection piece are electrically connected with the controller. The utility model solves the problems that the existing static pressure crushing equipment is difficult to efficiently crush waste concrete members and strip steel bars, and the crushing efficiency is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a high-efficiency static pressure crushing equipment for waste concrete components. Background Art

[0002] Existing waste concrete crushing and splitting processes mostly follow traditional mining crushing technologies, lacking technological innovations suitable for concrete reuse. Impact crushers, counterattack crushers, and roll crushers are usually used to process construction solid waste, especially for beams, columns, and other large reinforced concrete components. However, these crushing equipments have disadvantages such as high noise, low crushing efficiency, and large dust emissions. An efficient and low-cost crushing technology is an urgent need for the further resource utilization of construction solid waste. Currently, several emerging crushing technologies based on disassembly and crushing mechanics have been proposed, such as static pressure crushing, hydraulic torsion crushing, and high-pressure pulse crushing. Among them, static pressure crushing has been applied in some engineering practices. Static pressure crushing provides an efficient crushing process for waste concrete, while minimizing noise and dust levels. In addition, it reduces the crushing energy loss caused by fragment splashing. Static pressure crushing meets the environmental protection requirements of building disassembly, and can effectively promote building solid waste management and reduce recycling costs.

[0003] However, current static pressure crushing equipments generally adopt flat, linear, or spiked indenter (ZL201420507696.2, ZL202220169845.3, ZL202320341929.5). It is difficult for existing static pressure crushing equipments to efficiently achieve the crushing of waste concrete components and the stripping of steel bars, and the crushing efficiency still needs to be improved. In addition, existing static pressure crushing equipments cannot detect the position of the steel cage inside the component. After crushing, the integrity of the steel cage is low, and it is difficult to effectively remove, affecting subsequent crushing and screening processes.

[0004] Therefore, there is an urgent need for a high-efficiency static pressure crushing equipment for waste concrete components to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-efficiency static pressure crushing equipment for waste concrete components to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a high-efficiency static pressure crushing equipment for waste concrete components, including a static pressure crusher body,

[0007] An inlet conveyor is arranged on the static pressure crusher body, and the inlet conveyor is used for conveying waste concrete components;

[0008] The detection component includes a detector and a telescopic rod. The detector is installed on the static pressure crusher body through the telescopic rod, and the detector is used to detect the position of the steel cage in the waste concrete component.

[0009] The cross-shaped indenter is installed on the static pressure crusher body through a static pressure oil cylinder and is used to perform static pressure crushing on the waste concrete component.

[0010] The controller, the static pressure oil cylinder, the telescopic rod, and the detector are respectively electrically connected to the controller.

[0011] Preferably, the detector includes a steel bar detector. The steel bar detector is installed at the bottom end of the telescopic rod and is electrically connected to the controller through a wire.

[0012] Preferably, it further includes a slideway. The slideway is installed on the static pressure crusher body. The telescopic rod is slidably connected into the slideway, and the slideway is electrically connected to the controller through a wire.

[0013] Preferably, the thickness of the cross-shaped indenter is 150 mm - 600 mm, the vertical height of the cross-shaped indenter is 200 mm - 900 mm, and the length of the cross-shaped indenter is 1000 mm - 5000 mm.

[0014] Preferably, the total height of the cross-shaped indenter is 1500 mm - 2000 mm.

[0015] Preferably, a detector mechanical sensor is arranged on the steel bar detector, and the detector mechanical sensor is electrically connected to the controller through a wire.

[0016] Preferably, a indenter mechanical sensor is installed on the static pressure oil cylinder. The static pressure oil cylinder is supplied with oil through an oil supply device. The indenter mechanical sensor and the oil supply device are respectively electrically connected to the controller through wires.

[0017] Compared with the prior art, the present utility model has the following advantages and technical effects:

[0018] An efficient static pressure crushing equipment for waste concrete components provided by the present utility model. The feeding conveyor is used to convey waste concrete components. The controller is set to control and adjust the lateral displacement and vertical displacement of the detector. The detector is set to detect the position of the steel cage in the waste concrete component. The static pressure oil cylinder is set to drive the cross-shaped indenter to perform static pressure crushing on the concrete component. This application can detect the position of the steel cage inside the component, uses a cross-shaped indenter to replace the conventional linear indenter for crushing waste concrete components, and obtains a better concrete crushing effect and a more complete steel cage. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0020] Figure 1 Schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the cross-shaped indenter structure of the present invention;

[0022] Figure 3 Schematic diagrams of three different indenter shapes of the present invention, where a is a linear indenter, b is a combined indenter of a linear and a conical shape, and c is a cross-shaped indenter;

[0023] Figure 4 Simulation result diagram of the crushing efficiency of different-shaped indenters of the present invention;

[0024] Figure 5 Flow chart of the static pressure crushing of high-efficiency waste concrete components in the second embodiment of the present invention;

[0025] Among them, 1. Waste concrete component; 2. Cross-shaped indenter; 3. Static pressure oil cylinder; 4. Indenter mechanical sensor; 5. Oil supply device; 6. Controller; 7. Steel bar detector; 8. Detector mechanical sensor; 9. Telescopic rod; 10. Slideway; 11. Feeding conveyor. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific implementation manners.

[0028] Embodiment 1:

[0029] Refer to Figures 1 - 4 , the present invention provides a high-efficiency static pressure crushing equipment for waste concrete components, including a static pressure crusher body,

[0030] A feeding conveyor 11 is provided on the main body of the static pressure crusher, and the feeding conveyor 11 is used to convey the waste concrete component 1;

[0031] A detection assembly, including a detector and a telescopic rod 9, the detector is installed on the main body of the static pressure crusher through the telescopic rod 9, and the detector is used to detect the position of the steel cage in the waste concrete component 1;

[0032] A cross-shaped indenter 2, which is installed on the main body of the static pressure crusher through a static pressure oil cylinder 3, and is used to perform static pressure crushing on the waste concrete component 1;

[0033] A controller 6, the static pressure oil cylinder 3, the telescopic rod 9 and the detector are respectively electrically connected to the controller 6.

[0034] In an embodiment of the present utility model, a 500 - 2500t static pressure crusher is used to crush the waste concrete component 1.

[0035] The crushing efficiency of the cross-shaped indenter is higher than that of the traditional flat or linear indenter.

[0036] In a further optimized solution, the detector includes a steel bar detector 7, the steel bar detector 7 is installed at the bottom end of the telescopic rod 9, and is electrically connected to the controller 6 through a wire.

[0037] In an embodiment of the present utility model, the steel bar detector 7 controls the telescopic rod 9 to extend and press down to the upper surface of the waste concrete component 1 through the controller 6.

[0038] In a further optimized solution, it further includes a slideway 10, the slideway 10 is installed on the main body of the static pressure crusher, and the telescopic rod 9 is slidably connected into the slideway 10.

[0039] When the center line of the probe of the detector does not align with the axis of the steel bar, the controller 6 controls the movement of the slideway 10 until the center line of the probe coincides with the axis of the steel bar. At this time, the detector obtains the thickness of the concrete cover layer and transmits the information to the controller 6.

[0040] Specifically, based on an actual static pressure crushing project, a finite element model involving the demolition of a reinforced concrete beam was established. The commercial finite element analysis software ABAQUS was used to model the crushing process of waste concrete, and the crushing efficiency based on volume was proposed for the quantitative analysis of the static pressure crushing technology. Finally, the influence of the indenter shape on the static pressure crushing effect was studied through numerical simulation. Finite element analysis of the crushing efficiency of three different indenter shapes was carried out: linear indenter, combined linear and conical indenter, and cross-shaped indenter. The material parameters and simulation methods of all indenters are kept consistent. Therefore, these models can effectively prove the differences in crushing behavior and crushing efficiency caused by the change of the indenter shape.

[0041] The simulation results of the crushing efficiency show that the crushing efficiency of the straight indenter is 42.1%, the crushing efficiency of the combined straight and conical indenter is 28.3%, and the crushing efficiency of the cross-shaped indenter is 49.8%. The cross-shaped indenter exhibits the highest crushing efficiency among the three indenter shapes. The additional conical indenter in the combined straight and conical indenter has a negative impact on the crushing efficiency, reducing it by 13.84% compared to the straight indenter. The crushing efficiency of the cross-shaped indenter can be increased by 7.7% compared to the straight indenter. Therefore, it is proposed to use a cross-shaped indenter to replace the conventional straight indenter in the static pressure crusher for crushing waste concrete components to obtain a more ideal crushing effect.

[0042] For further optimization, the thickness of the cross-shaped indenter 2 is 150 mm - 600 mm, the vertical height of the cross-shaped indenter 2 is 200 mm - 900 mm, and the length of the cross-shaped indenter 2 is 1000 mm - 5000 mm.

[0043] For further optimization, the total height of the cross-shaped indenter 2 is 500 mm - 2000 mm.

[0044] In an embodiment of the present utility model, the size of the cross-shaped indenter 2 is adjusted according to the waste concrete component 1 to be crushed as required.

[0045] For further optimization, a detector mechanical sensor 8 is provided on the steel bar detector 7, and the detector mechanical sensor 8 is electrically connected to the controller 6 through a wire.

[0046] In an embodiment of the present utility model, the steel bar detector 7 controls the telescopic rod 9 to extend and press down to the upper surface of the waste concrete component 1 through the controller 6. When a force value greater than 0 from the detector mechanical sensor 8 is transmitted to the controller 6, the telescopic rod 9 stops extending.

[0047] For further optimization, a head mechanical sensor 4 is installed on the static pressure oil cylinder 3, the static pressure oil cylinder 3 is supplied with oil through an oil supply device 5, and the head mechanical sensor 4 and the oil supply device 5 are respectively electrically connected to the controller 6 through wires.

[0048] In an embodiment of the present utility model, the controller 6 adjusts the displacement stroke of the static pressure oil cylinder 3 according to the information transmitted by the steel bar detector 7, and the head mechanical sensor 4 is used to detect the pressure value of the cross-shaped indenter 2.

[0049] The cross-shaped indenter 2 proposed in the patent of the present utility model has a higher crushing efficiency compared to the traditional flat or straight indenter. In the face of different forms of waste concrete components, the position of the steel cage inside the component is detected by the steel bar detector 7 before static pressure crushing, and the controller 6 adjusts the displacement stroke of the static pressure oil cylinder 3 according to the information transmitted by the steel bar detector 7 to obtain a better concrete crushing effect and a more complete steel cage.

[0050] Embodiment 2:

[0051] Refer to Figure 5 , the support beam transported to the site is sent to the feeding conveyor 11 via a lifting device. The controller 6 controls the telescopic rod 9 to extend and press down. The detector mechanical sensor 8 transmits the force value to the controller 6. When the force value is greater than 0, it indicates that the steel bar detector 7 has good contact with the upper surface of the component. At this time, the controller 6 collects the information transmitted by the steel bar detector 7 and controls the slideway 10 to move until the center line of the probe of the steel bar detector 7 coincides with the axis of the steel bar. The steel bar detector 7 obtains the concrete cover thickness and transmits it to the controller 6. The support beam enters the 2500t static pressure crusher. The controller 6 controls the displacement stroke of the static pressure oil cylinder 3 according to the concrete cover thickness. The cross-shaped pressing head 2 inserts and crushes the outside of the support beam. The pressing head mechanical sensor 4 transmits the force value to the controller 6. The controller 6 adjusts the oil supply amount of the oil supply device 5 to the static pressure oil cylinder 3 according to the pressure magnitude. Here, compared with the linear pressing head, the crushing efficiency of the cross-shaped pressing head 2 can be increased by 7.7%. The support beam continues to be transported to the vibrating conveyor, and the steel bar cage is vibrated quickly up and down to separate the remaining wrapped concrete from the steel bars. After the vibration is completed, it is transported to the 1500t press system, and at the same time, the support beam is extruded. The controller 6 controls the cross-shaped pressing head 2 to insert. The pressing head mechanical sensor 4 transmits the force value to the controller 6. The controller 6 adjusts the oil supply amount of the oil supply device 5 to the static pressure oil cylinder 3 according to the pressure magnitude. The support beam is crushed again, and the concrete blocks fall off, exposing the internal steel bars. After the controller 6 controls the cross-shaped pressing head 2 to withdraw, it continues to be vibrated and transported to the 500t press to flatten the steel bar cage section by section. The pressing head mechanical sensor 4 transmits the force value to the controller 6. The controller 6 adjusts the oil supply amount of the oil supply device 5 to the static pressure oil cylinder 3 according to the pressure magnitude. After the steel bar cage is flattened, the automatic turning device stacks the steel bar cage on one side of the production line. The crushed concrete obtained after the static pressure crushing is transported upward by the elevator. Here, a magnetic separator is configured to remove the remaining steel bars. The remaining crushed concrete continues to be transported to the transfer bin through the plate chain elevator for centralized storage and stacking.

[0052] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0053] The embodiments described above are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. An efficient static pressure crushing equipment for waste concrete components, including a static pressure crusher body, characterized in that: A feeding conveyor (11) is arranged on the static pressure crusher body, and the feeding conveyor (11) is used for conveying waste concrete components (1); A detection component, including a detector and a telescopic rod (9), the detector is installed on the static pressure crusher body through the telescopic rod (9), and the detector is used for detecting the position of the steel cage in the waste concrete component (1); A cross-shaped pressing head (2), which is installed on the static pressure crusher body through a static pressure oil cylinder (3) and is used for static pressure crushing of the waste concrete component (1); A controller (6), the static pressure oil cylinder (3), the telescopic rod (9) and the detector are respectively electrically connected to the controller (6).

2. The high-efficiency static pressure crushing equipment for waste concrete components according to claim 1, characterized in that: The detector includes a steel bar detector (7), the steel bar detector (7) is installed at the bottom end of the telescopic rod (9) and is electrically connected to the controller (6) through a wire.

3. An efficient static pressure crushing equipment for waste concrete components according to claim 1, characterized in that: It also includes a slideway (10), the slideway (10) is installed on the static pressure crusher body, the telescopic rod (9) is slidably connected into the slideway (10), and the slideway (10) is electrically connected to the controller (6) through a wire.

4. An efficient static pressure crushing equipment for waste concrete components according to claim 1, characterized in that: The thickness of the cross-shaped pressing head (2) is 150 mm - 600 mm, the vertical height of the cross-shaped pressing head (2) is 200 mm - 900 mm, and the length of the cross-shaped pressing head (2) is 1000 mm - 5000 mm.

5. An efficient static pressure crushing equipment for waste concrete components according to claim 1, characterized in that: The total height of the cross-shaped pressing head (2) is 500 mm - 2000 mm.

6. An efficient static pressure crushing equipment for waste concrete components according to claim 2, characterized in that: A detector mechanical sensor (8) is arranged on the steel bar detector (7), and the detector mechanical sensor (8) is electrically connected to the controller (6) through a wire.

7. An efficient static pressure crushing equipment for waste concrete components according to claim 1, characterized in that: A pressing head mechanical sensor (4) is installed on the static pressure oil cylinder (3), the static pressure oil cylinder (3) is supplied with oil through an oil supply device (5), and the pressing head mechanical sensor (4) and the oil supply device (5) are respectively electrically connected to the controller (6) through wires.

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