A full-component aggregate continuous industrialized recycling system and method of waste concrete

Abstract

The application discloses a kind of full-component aggregate continuous industrialization recycling system and method of waste concrete, and the system includes reaction vessel, flat plate discharge electrode, screen group, powder collection container and side aggregate collection container.The screen group includes multiple screen meshes arranged in parallel from top to bottom;Screen mesh can be switched to connect high-voltage pulse source or ground, thereby forming high-voltage electrode or grounding electrode.When recycling waste concrete, the electrode properties of adjacent screen mesh layers in the screen group are replaced in sequence, so that a pulse discharge circuit is formed between adjacent screen mesh layers, particles on the lower screen mesh in adjacent screen mesh layers are crushed, and different particle size aggregates separated are input into the aggregate collection container.Fine powder crushed is entered into the powder collection container through the fourth screen mesh, avoiding secondary crushing of regenerated aggregates that have been dissociated, ensuring the original size and apparent form of the aggregate, achieving continuous industrialization recycling of waste concrete, and reducing energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of concrete recycling technology, and more specifically, relates to a continuous industrial recycling system and method for all components of waste concrete aggregates. Background Technology

[0002] Currently, with rapid economic development, urban public and civil buildings and municipal facilities are undergoing extensive renovations and upgrades. The massive scale of development and construction consumes large quantities of resources such as sand, gravel, and cement. The demolition and reconstruction of old concrete buildings and engineering structures have led to a year-on-year increase in construction waste, including discarded concrete. As land resources become increasingly scarce, the disposal methods for construction waste have shifted from primarily landfilling within cities to methods such as water transport, comprehensive utilization, backfilling, and landfilling at fixed disposal sites. With continuous urban development, the environmental problems caused by construction waste are becoming increasingly serious. Furthermore, the continuous use of concrete raw materials, mainly including clay, stone, sand, and coal, consumes large amounts of mineral resources, thus impacting the environment. Therefore, the recycling and utilization of waste concrete is an important measure for conserving energy and resources, protecting the human living environment, and pursuing a sustainable development path.

[0003] The surface of recycled coarse aggregate obtained from traditional mechanical crushing of waste concrete is easily adhered and coated by cement mortar. Therefore, compared with natural aggregate, recycled aggregate has a higher water absorption rate, lower apparent density, and poorer compressive strength. This results in concrete mixtures made with recycled aggregate having poor workability, lower hardened strength, larger deformation, and poorer durability. These defects seriously hinder the recycling of recycled aggregate. In addition, traditional mechanical crushing methods, which mainly crush concrete particles through compression, shearing, and grinding, are prone to over-grinding of aggregates and generating large amounts of dust and noise, causing harm to the surrounding environment and people. These methods are also costly, limiting their widespread application.

[0004] High-voltage electric pulse recycling of waste concrete utilizes the shock waves generated by the electric pulses to break up solids, preserving the structural morphology of aggregates within the waste concrete. It also boasts advantages such as low energy consumption, low cost, and no environmental pollution. However, for concrete particles formed by the combination of aggregates of different sizes and cement paste, the required surface discharge parameters and discharge time for high-voltage electric pulse crushing vary. If a uniform crushing operation is performed, some aggregates may be over-crushed, while others may not separate from the cement paste, failing to achieve the desired crushing and recycling effect. Summary of the Invention

[0005] In view of the problems that existing concrete recycling technologies cause some aggregates to be over-crushed and some aggregates to fail to separate from the cement paste, this invention provides a continuous industrial recycling system for all components of waste concrete aggregates to solve these problems.

[0006] To achieve the above objectives, the present invention provides a continuous industrial recycling system for all components of waste concrete aggregates, comprising a reaction vessel; a flat plate discharge electrode disposed within the reaction vessel; a screen assembly disposed at the bottom of the flat plate discharge electrode and parallel to the electrode, the screen assembly comprising multiple screens arranged parallel to each other from top to bottom, the aperture of the multiple screens decreasing sequentially from top to bottom; a powder collection container at the bottom of the screen assembly and a side aggregate collection container; inputting a corresponding amount of concrete particles onto the top screen of the screen assembly, the top screen forming a grounding electrode by being connected to the ground; and the flat plate discharge electrode generating a high-voltage pulse. The device inputs a corresponding high-voltage pulse source to form a high-voltage electrode, thereby performing high-voltage pulse discharge treatment on the concrete particles on the top screen, causing them to break down and fall into the next screen. After the discharge operation is completed for a set time, the top screen is tilted, allowing large particles to fall into the aggregate collection container. The electrode properties of adjacent screen layers in the screen group are changed in sequence to form a pulse discharge circuit between adjacent screen layers, which breaks down the particles on the lower screen in the adjacent screen layers. Screens with different aperture sizes are tilted in sequence, allowing the separated aggregate to fall into the aggregate collection container. The broken fine powder passes through the bottom screen into the powder collection container.

[0007] Furthermore, the screen is controlled by a control switch and a circuit breaker to switch between accessing a high-voltage pulse source and ground.

[0008] Furthermore, the outer side of the screen assembly is sealed by a square tube, the bottom of which is fixedly connected to the inner wall of the reaction vessel, and its surface is insulated. One end of the inner wall is provided with a sliding groove, and multiple discharge ports are opened in the sliding groove according to the position of each layer of screen.

[0009] Furthermore, one end of the screen is hinged to the fixed electrode seat, and the other end is hinged to the sliding electrode seat; the outer side of the fixed electrode seat is fixedly connected to the inner wall of the square tube, and the sliding electrode seat slides up and down along the groove and blocks the discharge port.

[0010] Furthermore, the screen assembly includes a first screen, a second screen, a third screen, and a fourth screen arranged sequentially from top to bottom. The aperture of the first screen is selected according to the maximum particle size of the concrete aggregate. The aperture of the second screen is 1 / 2 to 1 / 3 of the aperture of the first screen. The aperture of the third screen 7 is 4.75 mm, which is the same as that of the second screen 13. The aperture of the fourth screen 8 is 0.15 mm.

[0011] Furthermore, the voltage of the high-voltage pulse source is 80-160kV, the pulse frequency is 1-5 Hz, and the electrode spacing between the high-voltage electrode and the grounding electrode is 5-60mm; the pulse discharge circuit between adjacent screen layers adjusts the parameters of the input high-voltage pulse source and the electrode spacing according to the particle size of the concrete particles to be crushed.

[0012] Furthermore, the top of the reaction vessel has a feed inlet and a water inlet. Through the feed inlet, the feeding mechanism inputs the required number of waste concrete particles into the reaction vessel and places them on the screen assembly; through the water inlet, a corresponding amount of water is injected to submerge the flat plate discharge electrode.

[0013] Furthermore, the reaction vessel is equipped with a water level observation hole and an internal liquid level sensor; the liquid level sensor detects the water level height inside the reaction vessel and controls the water pump to inject a corresponding amount of water into the reaction vessel through the water inlet.

[0014] Furthermore, the bottom of the reaction vessel is connected to a first discharge mechanism and a second discharge mechanism; the first discharge mechanism includes a first sludge pump, which is connected to a powder collection container inside the reaction vessel through a pipe; the second discharge mechanism includes a second sludge pump, which is connected to an aggregate collection container inside the reaction vessel through a pipe.

[0015] According to another aspect of the present invention, a method for continuous industrial recycling of all components of aggregates from waste concrete is also provided, comprising the following steps:

[0016] S100: Set relevant parameters according to the properties of the waste concrete particles themselves. The relevant parameters include the voltage, discharge frequency, and discharge time parameters of multiple high-voltage pulse sources set according to concrete particles of different sizes.

[0017] S200: Inject the appropriate amount of water into the reaction vessel to immerse the plate discharge electrode.

[0018] S300: A certain amount of waste concrete particles are fed into the reaction vessel and placed on the top screen of the screen assembly;

[0019] S400: Connect the flat plate discharge electrode to the corresponding high voltage pulse source to form a high voltage electrode, and ground the top screen to form a ground electrode, thereby forming a pulse discharge circuit. The concrete particles on the top screen are crushed according to the set time. After completion, disconnect the high voltage pulse source and ground, pour the remaining impurities on the top screen into the aggregate collection container, and the crushed particles fall into the lower screen.

[0020] S500: Connect the top screen to the corresponding high-voltage pulse source to form a high-voltage electrode, and ground the bottom screen to form a grounding electrode, thereby forming a pulse discharge circuit. The concrete particles on the bottom screen are crushed according to the set time. After completion, disconnect the high-voltage pulse source and ground, pour the aggregate separated from the bottom screen into the aggregate collection container, and the crushed particles fall onto the next screen.

[0021] S600: Sequentially change the electrode properties of adjacent screen layers in the screen group to form a pulse discharge circuit between adjacent screen layers, crush the particles on the lower screen in the adjacent screen layers, and input the separated aggregates of different particle sizes into the aggregate collection container through the discharge port. The crushed fine powder enters the powder collection container through the bottom screen.

[0022] S700: After completing the crushing and collection of concrete particles on the bottom screen, repeat steps S200-S600 to carry out the next round of crushing.

[0023] S800: The particles in the aggregate collection container are screened to obtain aggregates of different sizes, which are then screened again and classified for recycling; the product in the final collection container is directly recycled.

[0024] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0025] 1. The recycling system of the present invention uses a screen group with progressively decreasing aperture to recycle recycled aggregates of different particle sizes after crushing concrete of different particle sizes, avoiding over-crushing and ensuring the original size and appearance of the aggregates.

[0026] 2. The recycling system of the present invention adjusts the parameters of the pulse discharge circuit used to break up concrete particles on each layer of screen, so that the voltage, pulse frequency and discharge time can be adjusted according to the particle size of the concrete particles: for large concrete particles, a high voltage, a low pulse frequency and a long discharge time are set to ensure that each intergrowth concrete particle can be broken down; for small intergrowth concrete particles, a low voltage, a high pulse frequency and a short discharge time are set to ensure that the shock wave generated by the discharge covers as many intergrowth concrete particles as possible, thereby rapidly and effectively breaking them down and separating them.

[0027] 3. The recycling system of the present invention adjusts the spacing between adjacent screen layers according to the aperture of different screens. When a pulse discharge circuit is formed between adjacent screen layers, the spacing between adjacent screen layers is the optimal discharge electrode spacing. This can effectively discharge and crush concrete particles of different sizes. While rapidly crushing concrete particles and separating aggregates, it greatly saves discharge energy. When continuously recycling all components of concrete particles into aggregates in an industrial process, it can effectively reduce recycling costs.

[0028] 4. The recycling system of the present invention, by sequentially changing the electrode properties of adjacent screen layers in the screen group, forms a pulse discharge circuit between adjacent screen layers, and adjusts the corresponding high-voltage pulse source parameters for concrete of various particle sizes, and pre-sets the optimal discharge electrode spacing between adjacent screen layers, can sequentially and quickly discharge and crush concrete particles on different screens to separate aggregates, and realizes continuous industrial recycling of waste concrete while ensuring the original size and appearance of the aggregates. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a method for continuous industrial recycling of all components of aggregates from waste concrete according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of a continuous industrial recycling system for all components of waste concrete according to an embodiment of the present invention.

[0031] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-reaction vessel, 2-flat plate discharge electrode, 3-water level observation hole, 4-feeding mechanism, 5-first screen, 6-fixed electrode base, 7-third screen, 8-fourth screen, 9-powder collection container, 10-first discharge mechanism, 11-discharge port, 12-sliding electrode base, 13-second screen, 14-aggregate collection container, 15-second discharge mechanism. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1As shown, this invention provides a continuous industrial recycling system for all components of waste concrete aggregates. The system includes a reaction vessel 1, a flat plate discharge electrode 2 disposed within the reaction vessel 1, a screen assembly located at the bottom of the flat plate discharge electrode 2 and parallel to it, a powder collection container 9 at the bottom of the screen assembly, and a side aggregate collection container 14. The screen assembly includes multiple screens arranged parallel to each other from top to bottom, with the aperture of the multiple screens decreasing sequentially from top to bottom as needed. A single-layer screen is controlled by a control switch and a circuit breaker, switching between a high-voltage pulse source and ground. When recycling waste concrete, a corresponding amount of concrete particles are placed on the top screen, making the top screen connected to the ground to form a grounding electrode. The flat discharge electrode 2 is fed with a corresponding high-voltage pulse through a high-voltage pulse generator to perform high-voltage pulse discharge treatment on the concrete particles on the top screen, causing them to break down and fall into the next screen. After the discharge effect is completed for a set time, the top screen is tilted, allowing large particles to fall into the aggregate collection container 14. Through control switches and circuit breakers, the high-voltage pulse source of the adjacent upper screen is connected to form a high-voltage electrode, and the lower screen is connected to the ground to form a grounding electrode. Aggregates of different sizes in the concrete particles are separated from the cement paste on screens of different specifications, and the screens of different aperture sizes are tilted in sequence to allow the separated aggregates to fall into the aggregate collection container 14. This avoids the secondary crushing of the already separated recycled aggregates, which would cause over-crushing, thus ensuring the original size and appearance of the aggregates. This achieves continuous industrial recycling of waste concrete and reduces energy consumption.

[0034] In this embodiment of the invention, the reaction vessel 1 has a feed inlet and a water inlet at the top, and a first discharge mechanism 10 and a second discharge mechanism 15 connected to the bottom. Through the feed inlet, the feed mechanism 4 can input the required amount of waste concrete particles into the reaction vessel 1 and place them on the screen assembly. The first discharge mechanism 10 includes a first sludge pump, which is connected to a powder collection container 9 inside the reaction vessel 1 via a pipe. The pump extracts the fine powder collected in the powder collection container 9 from the reaction vessel 1 and performs filtration and drying. The second discharge mechanism 15 includes a second sludge pump, which is connected to an aggregate collection container 14 inside the reaction vessel 1 via a pipe. The pump extracts aggregates of various particle sizes collected in the aggregate collection container 14 from the reaction vessel 1 and performs filtration and drying. Preferably, a first pressure sensor is provided at the bottom of the powder collection container 9. When the weight of the fine powder collected in the powder collection container 9 reaches a set threshold, the sensor controls the first sludge pump to start and extract the fine powder. Preferably, a second pressure sensor is provided at the bottom of the aggregate collection container 14. When the weight of the aggregate collected in the aggregate collection container 14 reaches a set threshold, the sensor controls the second sludge pump to start and extract the aggregate. Further, a liquid level sensor is also provided inside the reaction vessel 1. This sensor detects the water level in the reaction vessel 1. When the water level drops to a minimum threshold, the sensor controls a water pump to inject an appropriate amount of water into the reaction vessel 1 through the water inlet. Preferably, the reaction vessel 1 is also provided with a water level observation hole 4, through which the operator can observe the liquid level in the reaction vessel 1.

[0035] In one embodiment of the present invention, the screen assembly includes a first screen 5, a second screen 13, a third screen 7, and a fourth screen 8 arranged sequentially from top to bottom. All four are square structures and arranged in parallel. One end of each screen is hinged to a fixed electrode base 6, and the other end is hinged to a sliding electrode base 12. The aperture size of the first screen 5 is slightly larger than the largest aggregate particle size in the concrete. The aperture of the second screen 13 is 1 / 2 to 1 / 3 of the aperture of the first screen 5. The aperture of the third screen 7 is based on the dividing size between coarse and fine aggregates, and is 4.75 mm. The aperture of the fourth screen 8 is based on the dividing size between fine aggregates and micro-powders, and is fixed at 0.15 mm. The outside of the screen assembly is sealed by a square tube to prevent waste concrete particles from breaking and escaping from the screen assembly. The bottom of the square tube is fixedly connected to the inner wall of the reaction vessel 1, and its surface is insulated. One end of the inner wall has a sliding groove. The fixed electrode seat 6 is fixedly connected to the inner wall of the outer square tube. The sliding electrode seat 12 is driven by a cylinder or electric cylinder to slide up and down along the slide groove, thereby causing one end of the screen to tilt and pour out the aggregate. Furthermore, the slide groove has multiple discharge ports 11 according to the position of each layer of screen. When the screen is in a horizontal state, the sliding electrode seat 12 blocks the discharge ports 11 to prevent the particles generated by crushing from escaping and flying out. When the sliding electrode seat 12 slides down and causes the screen to tilt, the discharge ports 11 are exposed, so that the aggregate particles on the corresponding screen are poured out from the discharge ports 11 and fall into the aggregate collection container 14.

[0036] In the pulse discharge circuit, the electrode spacing between the high-voltage electrode and the ground electrode is 5-60mm, the voltage output by the high-voltage pulse generator is 80-160kV, and the pulse frequency is 1-5Hz.

[0037] When recycling all components of waste concrete particles into aggregate, the feeding mechanism 4 can input the required amount of waste concrete particles into the reaction container 1 through the inlet and place them on the first screen 5, wherein the particle size of the waste concrete particles is slightly larger than the aperture of the first screen 5. An appropriate amount of water is injected into the reaction container 1 to submerge the flat plate discharge electrode 2. The circuit breaker connected to the first screen 5 is switched to the grounding circuit, the control switch is closed, and the first screen 5 becomes a grounding electrode. The flat plate discharge electrode 2 is input with a corresponding high-voltage pulse source through the high-voltage pulse generator, and the waste concrete particles on the first screen 5 are crushed according to the set time. The crushed particles smaller than the first screen 5 fall into the lower screen. After the set time is reached, the control switch connected to the first screen 5 is disconnected, the sliding electrode seat 12 slides down and leaks out of the outlet, and drives the first screen 5 to tilt. Through gravity, the uncrushed impurity particles at the top of the first screen 5 slide into the aggregate collection container 14. After completion, the sliding electrode seat 12 moves up to keep the first screen 5 horizontal. The circuit breaker connected to the first screen 5 is switched to the high-voltage pulse source input circuit, and the control switch is closed, making the first screen 5 a high-voltage electrode; the circuit breaker connected to the second screen 13 is switched to the grounding circuit, and the control switch is closed, making the second screen 13 a grounding electrode. The corresponding high-voltage electric pulse is input to the voltage pulse source input circuit through the voltage pulse generator, and the concrete particles on the second screen 13 are crushed according to the corresponding discharge duration. The crushed particles smaller than the second screen 13 fall onto the lower screen. After the set discharge duration is reached, the two sets of control switches connected to the first screen 5 and the second screen 13 are disconnected, and the sliding electrode seat 12 hinged to the second screen 13 slides down and protrudes into the discharge port 11, causing the second screen 135 to tilt, so that the aggregate separated on the second screen 135 falls through the discharge port 11. The aggregate is fed into the aggregate collection container 14; the electrode properties of the second screen 13 and the third screen 7, and the third screen 7 and the fourth screen 8 are changed in sequence to form a pulse discharge circuit between adjacent screen layers, which crushes the particles on the lower screen in the adjacent screen layers, and the separated aggregates of different particle sizes are fed into the aggregate collection container 14 through the discharge port 11. The crushed fine powder enters the powder collection container 9 through the fourth screen 8; the first discharge mechanism 10 extracts the fine powder collected in the powder collection container 9, and after filtering and drying, it is recycled; the second discharge mechanism 15 extracts the aggregates of various particle sizes collected in the aggregate collection container 14 from the reaction container 1, and after filtering and drying, the aggregates and large particle impurities are screened and classified again through multiple sets of screens, thereby recovering aggregates of different particle sizes.

[0038] like Figure 2 As shown in the figure, this invention also provides a method for continuous industrial recycling of all components of aggregates from waste concrete, comprising the following steps:

[0039] S100: Set relevant parameters according to the properties of the waste concrete particles themselves. The relevant parameters include the voltage, discharge frequency, and discharge time parameters of multiple high-voltage pulse sources set according to concrete particles of different sizes.

[0040] S200: Inject the appropriate amount of water into the reaction vessel 1 so that the water submerges the plate discharge electrode 2;

[0041] S300: A certain amount of waste concrete particles are fed into reaction vessel 1 and placed on the top screen of the screen assembly;

[0042] S400: Connect the flat plate discharge electrode 2 to the corresponding high voltage pulse source to form a high voltage electrode, and ground the top screen to form a grounding electrode, thereby forming a pulse discharge circuit. Crush the concrete particles on the top screen according to the set time. After completion, disconnect the high voltage pulse source and ground, pour the remaining impurities on the top screen into the aggregate collection container 14, and the crushed particles fall into the lower screen.

[0043] S500: Connect the top screen to the corresponding high-voltage pulse source to form a high-voltage electrode, and ground the bottom screen to form a grounding electrode, thereby forming a pulse discharge circuit to crush the concrete particles on the bottom screen for a set time. After completion, disconnect the high-voltage pulse source and ground, pour the aggregate separated from the bottom screen into the aggregate collection container 14, and the crushed particles fall onto the next screen.

[0044] S600: The electrode properties of adjacent screen layers in the screen group are changed in sequence to form a pulse discharge circuit between adjacent screen layers. The particles on the lower screen in the adjacent screen layer are crushed, and the separated aggregates of different particle sizes are fed into the aggregate collection container 14 through the discharge port. The crushed fine powder enters the powder collection container 9 through the bottom screen.

[0045] S700: After completing the crushing and collection of concrete particles on the bottom screen, repeat steps S200-S600 to carry out the next round of crushing.

[0046] S800: The particles in the aggregate collection container 14 are screened to obtain aggregates of different sizes, which are then screened again and classified for recycling; the product in the final collection container 10 is directly recycled.

[0047] The recycling system of this invention uses a screen group with progressively decreasing aperture to recycle recycled aggregates of different particle sizes after crushing concrete of different particle sizes, avoiding over-crushing and ensuring the original size and appearance of the aggregates.

[0048] The recycling system of this invention adjusts the pulse discharge circuit parameters on each layer of screens used for crushing concrete particles. This allows the voltage, pulse frequency, and discharge time to be adjusted according to the particle size of the concrete particles to be crushed. For large concrete particles, a high voltage, low pulse frequency, and long discharge time are set to ensure that each intergrowth concrete particle can be broken down. For small intergrowth concrete particles, a low voltage, high pulse frequency, and short discharge time are set to ensure that the shock wave generated by the discharge covers as many intergrowth concrete particles as possible, thereby enabling rapid and effective crushing and separation.

[0049] The recycling system of this invention adjusts the spacing between adjacent screen layers according to the aperture of different screens. When a pulse discharge circuit is formed between adjacent screen layers, the spacing between adjacent screen layers is the optimal discharge electrode spacing. This can effectively discharge and crush concrete particles of different sizes. While rapidly crushing concrete particles and separating aggregates, it greatly saves discharge energy. When continuously recycling all components of concrete particles into aggregates in an industrial process, it can effectively reduce recycling costs.

[0050] The recycling system of this invention creates a pulsed discharge circuit between adjacent screen layers by sequentially changing the electrode properties of adjacent screen layers in the screen group. It also adjusts the corresponding high-voltage pulse source parameters for concrete with various particle sizes and pre-sets the optimal discharge electrode spacing between adjacent screen layers. This allows for the rapid discharge crushing and separation of concrete particles on different screens into aggregates, achieving continuous industrial recycling of waste concrete while ensuring the original size and appearance of the aggregates.

[0051] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A continuous industrial recycling system for all components of waste concrete aggregates, characterized in that, include: Reaction vessel (1); A flat discharge electrode (2) is installed inside the reaction vessel (1); A screen group is set at the bottom of the flat plate discharge electrode (2) and parallel to the flat plate discharge electrode (2). The screen group includes multiple screens arranged in parallel from top to bottom, and the aperture of the multiple screens decreases from top to bottom. The outside of the screen group is sealed by a square tube. The bottom of the square tube is fixedly connected to the inner wall of the reaction vessel (1). Its surface is insulated. One end of the inner wall is provided with a sliding groove. Multiple discharge ports (11) are opened in the sliding groove according to the position of each layer of screens. One end of the screen is hinged to the fixed electrode seat (6), and the other end is hinged to the sliding electrode seat (12). The outside of the fixed electrode seat (6) is fixedly connected to the inner wall of the square tube. The sliding electrode seat (12) slides up and down along the sliding groove and blocks the discharge port (11). The screen is controlled by a control switch and a circuit breaker to switch between being connected to a high-voltage pulse source and ground. The powder collection container (9) and the aggregate collection container (14) are located at the bottom of the screen assembly. A corresponding amount of water is injected into the reaction vessel (1) to submerge the flat plate discharge electrode (2); a corresponding amount of concrete particles are placed on the top screen of the screen assembly. The top screen is connected to the ground to form a grounding electrode. The flat plate discharge electrode (2) is connected to the high-voltage pulse generator to form a high-voltage electrode, thereby performing high-voltage pulse discharge treatment on the concrete particles on the top screen, causing them to break and fall into the next screen. After the discharge operation is completed for a set time, the top screen is tilted so that large particles fall into the aggregate collection container (14). The voltage of the high-voltage pulse source is 80-160kV and the pulse frequency is 1-5. Hertz, the electrode spacing between the high voltage electrode and the grounding electrode is 5-60mm; the pulse discharge circuit between adjacent screen layers adjusts the parameters of the input high voltage pulse source and the electrode spacing according to the particle size of the concrete particles to be crushed; the electrode properties of adjacent screen layers in the screen group are changed in sequence to form a pulse discharge circuit between adjacent screen layers, crushing the particles on the lower screen in the adjacent screen layers, and tilting the screens with different apertures in sequence to let the separated aggregate fall into the aggregate collection container (14), and the crushed fine powder enters the powder collection container (9) through the bottom screen.

2. The continuous industrial recycling system for all components of waste concrete aggregates according to claim 1, characterized in that, The screen group includes a first screen (5), a second screen (13), a third screen (7), and a fourth screen (8) arranged from top to bottom. The aperture of the first screen (5) is selected according to the maximum particle size of the concrete aggregate. The aperture of the second screen (13) is 1 / 2 to 1 / 3 of the aperture of the first screen (5). The aperture of the third screen (7) is 4.75 mm, and the aperture of the fourth screen (8) is 0.15 mm.

3. The continuous industrial recycling system for all components of waste concrete aggregates according to claim 1, characterized in that, The reaction vessel (1) has an inlet and a water inlet at the top. Through the inlet, the feeding mechanism (4) feeds the required amount of waste concrete particles into the reaction vessel (1) and places them on the screen group; through the water inlet, a corresponding amount of water is injected to submerge the flat plate discharge electrode (2).

4. The continuous industrial recycling system for all components of waste concrete aggregates according to claim 3, characterized in that, The reaction vessel (1) is provided with a water level observation hole and a liquid level sensor inside; the liquid level sensor detects the water level height inside the reaction vessel (1) and controls the water pump to inject the corresponding amount of water into the reaction vessel (1) through the water inlet.

5. A continuous industrial recycling system for all components of waste concrete aggregates according to claim 1, characterized in that, The bottom of the reaction vessel (1) is connected to a first discharge mechanism (10) and a second discharge mechanism (15); The first discharge mechanism (10) includes a first mud pump, which is connected to the powder collection container (9) inside the reaction vessel (1) via a pipeline; The second discharge mechanism (15) includes a second sludge pump, which is connected to the aggregate collection container (14) inside the reaction vessel (1) via a pipeline.

6. A method for continuous industrial recycling of all components of aggregates from waste concrete, implemented using a continuous industrial recycling system for all components of aggregates from waste concrete as described in any one of claims 1-5, characterized in that, Includes the following steps: S100: Set relevant parameters according to the properties of the waste concrete particles themselves. The relevant parameters include the voltage, discharge frequency, and discharge time parameters of multiple high-voltage pulse sources set according to concrete particles of different sizes. S200: Inject the appropriate amount of water into the reaction vessel (1) so that the water submerges the plate discharge electrode (2). S300: Input a certain amount of waste concrete particles into the reaction vessel (1) and place them on the top screen of the screen assembly; S400: Connect the flat plate discharge electrode (2) to the corresponding high voltage pulse source to form a high voltage electrode, and ground the top screen to form a ground electrode, thereby forming a pulse discharge circuit. Crush the concrete particles on the top screen according to the set time. After completion, disconnect the high voltage pulse source and the ground, pour the remaining impurities on the top screen into the aggregate collection container (14), and the crushed particles fall into the lower screen. S500: Connect the top screen to the corresponding high-voltage pulse source to form a high-voltage electrode, and ground the bottom screen to form a grounding electrode, thereby forming a pulse discharge circuit. Crush the concrete particles on the bottom screen according to the set time. After completion, disconnect the high-voltage pulse source and the ground, and pour the aggregate separated from the bottom screen into the aggregate collection container (14). The crushed particles fall onto the next screen. S600: The electrode properties of adjacent screen layers in the screen group are changed in sequence to form a pulse discharge circuit between adjacent screen layers. The particles on the lower screen in the adjacent screen layers are crushed, and the separated aggregates of different particle sizes are fed into the aggregate collection container (14) through the discharge port. The crushed fine powder enters the powder collection container (9) through the bottom screen. S700: After completing the crushing and collection of concrete particles on the bottom screen, repeat steps S200-S600 to carry out the next round of crushing. S800: The particles in the aggregate collection container (14) are screened to obtain aggregates of different sizes, and then screened again and recycled separately; the product in the powder collection container (9) is directly recycled.

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