A device and method for carbon-enhanced large-area adsorption mineralization of recycled concrete

Abstract

The present invention discloses a large-area adsorption mineralization device and method for carbon-enhanced recycled concrete, including: a crushing and impurity removal part, including a primary impurity removal unit, a jaw crusher, and a secondary impurity removal unit sequentially installed on the ground, for removing impurities from waste concrete before and after crushing; a regeneration and strengthening part, for strengthening the concrete after crushing and impurity removal; a mobile transfer part, which is mainly composed of a transfer track on the ground, one end of which extends to the bottom of the discharge port at the bottom of the vertical mixing box, and the other end extends to the box of the processing and maintenance part, and at the same time, one side of the transfer track is also extended with a parallel monitoring track line and a return track line; a quality monitoring part, which is used to detect the performance indicators of the sample concrete. The present invention saves the cost of preparing high-performance recycled concrete and improves preparation efficiency and quality control by integrating the impurity removal, crushing, strengthening, processing, quality inspection, and return of carbon-enhanced recycled concrete into one device.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to a recycled concrete carbon-enhanced large-area adsorption mineralization device, and also to a recycled concrete carbon-enhanced large-area adsorption mineralization method. Background Art

[0002] Carbon-enhanced adsorption and mineralization of recycled concrete refers to adding carbonaceous materials to recycled concrete to fix carbon dioxide in concrete through physical and chemical reactions, thereby reducing carbon dioxide emissions and improving concrete performance. Specifically, carbonaceous materials can be waste tires, diatomaceous earth, etc. They can absorb a large amount of CO2 and promote the mineralization of concrete to form concrete with higher mechanical properties and weathering resistance. Making construction waste into recycled aggregates to replace natural aggregates is of great significance to resources, environment and sustainable development.

[0003] However, recycled aggregates have the characteristics of high water absorption, high porosity, high crushing index value, and large quality discreteness, which affect the performance of recycled concrete and limit the application of recycled aggregates.

[0004] Therefore, there is a need for a large-area adsorption mineralization device and method for carbon-enhanced recycled concrete, which can perform carbon-enhanced recycled concrete and timely monitor the performance of the reinforced recycled concrete to control the quality of the finished product. Summary of the invention

[0005] Based on the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a large-area adsorption and mineralization device for carbon-enhanced recycled concrete, which can realize the integration of carbon-enhanced, large-area adsorption, mineralization, quality inspection and recycling of recycled concrete, and can simultaneously produce a large amount of enhanced high-performance concrete to improve efficiency. At the same time, the performance quality of the produced concrete can be guaranteed through the quality inspection and recycling mechanism, thereby greatly saving quality control costs.

[0006] Another object of the present invention is to provide a large-area adsorption mineralization method for carbon-enhanced recycled concrete, which can be directly applied to the existing recycled concrete preparation. By integrating the impurity removal, crushing, strengthening, processing, quality inspection and recycling of carbon-enhanced recycled concrete into one device, the cost of preparing high-performance recycled concrete can be greatly saved, and the preparation efficiency and quality control can be effectively improved.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] The large-area adsorption mineralization device for carbon-enhanced recycled concrete of the present invention comprises: a crushing and impurity removal part, comprising a ground serving as the base of the entire device, a primary impurity removal unit, a jaw crusher, and a secondary impurity removal unit sequentially installed on the ground from left to right, for removing impurities from waste concrete before and after crushing; a regeneration and strengthening part, comprising a vertical mixing box installed on the ground, and a vacuum pump, a carbon dioxide pump, a lime water pump inlet, and a lime water pump out connected to the vertical mixing box, a mixing mechanism being provided inside the vertical mixing box, and the regeneration and strengthening part being used to strengthen the concrete after crushing and impurity removal; a mobile transport part, the main body of which is formed by a transport track installed on the ground, a small transport box and a large transport box being provided on the transport track, the transport track being formed by a track between the regeneration and strengthening part and the processing and maintenance part, and one end of the transport track extending to the vertical mixing box The bottom of the lower discharge port, and its other end extends into the box of the processing and maintenance part. At the same time, one side of the transfer track is also extended with a parallel monitoring track line and a return track line; the processing and maintenance part is used to process and maintain the concrete material and produce it. After the production is completed, the small carrying box is controlled to move with some samples to the monitoring track line; the quality monitoring part includes a pressure testing machine, a tensile testing machine, a bending testing machine, a water absorption tester, a shrinkage tester, and a fatigue testing machine arranged from left to right along one side of the monitoring track line, which are used to test the performance indicators of the sample concrete; if the test result does not meet the standard, the concrete produced in the same batch is controlled to be moved out of the processing and maintenance part through the large carrying box, and moved to the primary impurity removal unit through the return track line, and the finished concrete is assisted by the return robot arm to be clamped and moved to the conveyor belt of the primary impurity removal unit for return preparation.

[0009] Preferably, the primary impurity removal unit has the same structure as the secondary impurity removal unit, and is arranged before and after the feed port of the jaw crusher, and is used to remove impurities from the waste concrete before and after crushing, respectively; the primary impurity removal unit includes a conveyor belt serving as a waste concrete transportation track, and the conveyor belt is divided into two sections: horizontal conveying and lifting conveying. The impurity removal gantry passes through the horizontal conveying section and is installed on the ground, and the end of the lifting conveying section of the primary impurity removal unit is close to the feed port of the jaw crusher; the horizontal conveying section of the secondary impurity removal unit extends to the lower end of the discharge port of the jaw crusher, and the end of the lifting conveying section is close to the top of the feed port of the vertical mixing box.

[0010] Furthermore, longitudinal debris removal tracks are provided on the left and right cross bars at the upper end of the debris removal gantry, and a debris removal electric push rod mounting plate is installed between the two debris removal tracks on the two cross bars through an electric trolley, and four evenly distributed debris removal electric push rods are provided on the debris removal electric push rod mounting plate; the output end of each debris removal electric push rod is connected to a rotating motor, and the output end of the rotating motor is connected to a debris removal electric permanent magnetic suction cup.

[0011] Furthermore, the impurity removal gantry is provided with a plurality of impurity removal storage boxes of different sizes below the impurity removal track except for the horizontal conveying section of the conveyor belt, and the impurity removal storage boxes include a storage box with the same width as the impurity removal gantry at the end, two storage boxes with a quarter of the width of the impurity removal gantry located on both sides of the front end, and a storage box with two quarters of the width of the impurity removal gantry located in the middle of the front end; when it is necessary to remove impurities and crush the waste concrete or recycled concrete, the waste concrete is first placed on the horizontal conveying section of the conveyor belt of the primary impurity removal unit, and then the waste concrete is put into the storage box. The conveying section is controlled, and the impurity removal electric push rod mounting plate is moved to the top of the horizontal conveying section of the conveyor belt of the impurity removal track through the electric trolleys at both ends. The impurity removal electric push rod on it is controlled to lower the impurity removal electric permanent magnetic suction cup at its output end close to the concrete surface, and the impurity removal electric permanent magnetic suction cup is turned on to adsorb impurities in the concrete. After the adsorption is completed, the impurity removal electric push rod is retracted, and the impurity removal electric push rod mounting plate is moved to the top of the impurity removal storage box, the impurity removal electric push rod is lowered and the impurity removal electric permanent magnetic suction cup is closed, so that the impurities on it fall into the impurity removal storage box for storage due to the loss of magnetic force.

[0012] Preferably, a discharge port and a lime water pumping valve are provided at the lower end of the vertical mixing box, and the lime water pumping valve is connected to the lime water pumping machine through a pipeline; a circular top plate is fixedly installed on the circular opening at the upper end of the vertical mixing box, and a discharge port is provided on one side of the top plate near the end of the lifting and conveying section of the conveyor belt of the secondary impurity removal unit, and another discharge port is provided at the opposite position of the top plate, and an annular rack track mounting seat is provided in the middle of the top plate, and a rack track is provided on the rack track mounting seat; an opening is provided inside the rack track mounting seat in the middle of the top plate, and the output end of the first three-way valve is inserted into the opening; the two input ends of the first three-way valve are respectively connected to the lime water pumping machine and the output end of the second three-way valve through pipelines; the two input ends of the second three-way valve are respectively connected to the vacuum pump and the carbon dioxide pump through pipelines; a second three-way valve mounting seat is also provided on the inner upper surface of the rack track mounting seat in the middle of the top plate, and a second three-way valve is fixedly installed on the second three-way valve mounting seat.

[0013] Furthermore, the first-layer top plate is provided with a second-layer top plate of a size that completely matches the first-layer top plate, and the periphery of the second-layer top plate is provided with two second-layer discharge ports that are the same as the two first-layer discharge ports on the first-layer top plate, and an additional second-layer discharge port is provided at other positions on the periphery of the second-layer top plate, and the size is also the same as the first-layer discharge port; a circular opening is provided in the middle of the second-layer top plate, and its size is larger than the rack track mounting seat, and the second-layer top plate can pass through the rack track mounting seat through the circular opening in the middle, and then be installed on the first-layer top plate; a stepper motor is provided on the upper surface of the inner ring of the second-layer top plate near the rack track, and the output end of the stepper motor is connected to a gear, which meshes with the rack track; when the regeneration and strengthening process is carried out, the two second-layer discharge ports and the first-layer discharge port correspond to form a complete channel, or only an additional second-layer discharge port is used to form a complete channel with a first-layer discharge port near the secondary impurity removal unit, and the other channel is closed, and the concrete falls into the vertical mixing box through the channel for mixing. When it is necessary to add other strengthening materials such as carbonaceous materials, they can be added into the box through another channel. If the other channel is closed, the gear on it can be controlled by a stepper motor to rotate on the rack track, thereby driving the entire second-layer top plate to rotate on the first-layer top plate, and adjusting until the second-layer discharge port corresponds to the first-layer discharge port, and the other channel is opened for discharge; after the discharge is completed, the strengthening process is carried out, and the rotation of the second-layer top plate is adjusted so that each second-layer discharge port does not correspond to any first-layer discharge port, thereby realizing the closure in the box. At this time, the box is evacuated through the second three-way valve and the first three-way valve by using a vacuum pump, and then lime water is pumped into the box synchronously with carbon dioxide through a lime water pumping machine and a carbon dioxide pumping machine to promote the carbonization reaction. After the strengthening is completed, the lime water pumping machine is used to extract excess lime water through the lime water pumping valve at the bottom. At this point, the regeneration strengthening process is completed, and the strengthened concrete is discharged to the mobile transfer part through the discharge port at the bottom of the vertical mixing box for the next process.

[0014] Accordingly, the present invention also provides a method for large-area adsorption mineralization of recycled concrete carbon-enhanced, the steps of which are:

[0015] S1. When it is necessary to remove impurities from waste concrete or recycled concrete, first put the waste concrete on the horizontal conveying section of the conveyor belt of the primary impurity removal unit, control the impurity removal electric push rod installation plate to move to the top of the horizontal conveying section of the conveyor belt of the impurity removal track through the electric trolleys at both ends, control the impurity removal electric push rod on it to lower the impurity removal electric permanent magnetic suction cup at its output end close to the concrete surface, turn on the impurity removal electric permanent magnetic suction cup to adsorb impurities in the concrete, retract the impurity removal electric push rod after adsorption, move the impurity removal electric push rod installation plate to the top of the impurity removal storage box, lower the impurity removal electric push rod and turn off the impurity removal electric permanent magnetic suction cup, so that the impurities on it fall into the impurity removal due to the loss of magnetic force. The concrete is stored in the impurity storage box; when the primary impurity removal unit completes adsorption, the conveyor belt is started to lift the concrete in the horizontal conveying section through the lifting conveying section and then falls into the feeding port of the jaw crusher, the jaw crusher is started to crush the concrete, and the crushed concrete falls into the horizontal conveying section of the conveyor belt of the secondary impurity removal unit through the discharging port, and the conveyor belt is started to make the crushed concrete enter the working range of the impurity removal mechanism of the secondary impurity removal unit again, and the secondary impurity removal is carried out in the same way as the above-mentioned primary impurity removal unit. After the secondary impurity removal is completed, the concrete is lifted to the end of the lifting conveying section through its conveyor belt and falls into the first-layer discharge port of the vertical mixing box for regeneration and strengthening process;

[0016] S2. When the regeneration and strengthening process is carried out, the two second-layer discharge ports correspond to the first-layer discharge port to form a complete channel, or only an additional second-layer discharge port corresponds to a first-layer discharge port near the secondary impurity removal unit to form a complete channel, and the other channel is closed. The concrete falls into the vertical mixing box through the channel for mixing. When other strengthening materials such as carbonaceous materials need to be added, they can be added to the box through another channel. If the other channel is closed, the gear on it can be controlled by a stepper motor to rotate on the rack track, thereby driving the entire second-layer top plate to rotate on the first-layer top plate, and it is adjusted until the second-layer discharge port corresponds to the first-layer discharge port, and the other channel is opened for discharge; after discharge, After that, the strengthening process is carried out. By adjusting the rotation of the second-layer top plate, each second-layer discharge port does not correspond to any first-layer discharge port, thereby realizing the closure of the box. At this time, the box is evacuated by using a vacuum pump through the second three-way valve and the first three-way valve, and then lime water is pumped into the box synchronously with carbon dioxide through a lime water pumping machine and a carbon dioxide pumping machine to promote the carbonization reaction, so that the calcified substances inside the concrete are generated more evenly. After strengthening is completed, the lime water pumping machine is used to pump out excess lime water through the lime water pumping valve at the bottom. At this point, the regeneration strengthening process is completed, and the strengthened concrete is discharged to the mobile transfer part through the discharge port at the bottom of the vertical mixing box for the next process;

[0017] S3. After the regeneration and strengthening is completed, the small carrier box or the large carrier box is controlled to move to the transfer track close to the side of the vertical mixing box, and the strengthened concrete material is unloaded into the carrier box through the discharge port at the bottom of the vertical mixing box. After the unloading is completed, the carrier box is controlled to move to the processing and curing part to process and cure the concrete material for production. After the production is completed, the small carrier box is controlled to move with some samples to the monitoring track line, and the samples are sequentially passed through the pressure testing machine, the tensile testing machine, the bending testing machine, the water absorption tester, the shrinkage tester, and the fatigue testing machine, and the various performance indicators of the sample concrete are tested with manual assistance. If the final test result does not meet the standard, the cause of the problem is determined after error analysis, the process is adjusted, and the re-melting process is carried out. At this time, the concrete produced in the same batch is controlled to move from the re-melting track line to the vicinity of the primary impurity removal unit through the large carrier box, and the finished concrete is assisted by the re-melting mechanical arm to be clamped and moved to the conveyor belt of the primary impurity removal unit for re-melting preparation. The subsequent processes are the same as above; if the finished product indicators meet the standards, re-melting is not carried out, and the recycled concrete produced in this batch can be produced.

[0018] From the above, the beneficial effects of the recycled concrete carbon enhanced large-area adsorption mineralization device and method of the present invention are as follows:

[0019] 1. Compared with the prior art, the present invention removes impurities before and after concrete crushing through the designed primary impurity removal, crushing and secondary impurity removal mechanisms, effectively removing impurities in the concrete and preparing for the subsequent strengthening of high-quality concrete. The special structural design of the primary impurity removal unit and the secondary impurity removal unit of the present invention, although using the same mechanism, can deal with the adsorption and impurity removal of longer steel bars and larger metal fragments before crushing, and can also handle the adsorption and impurity removal of smaller screws and nails after crushing. The relative number, size and position design of the impurity removal electric push rod, rotating motor, impurity removal electric permanent magnetic suction cup and impurity removal storage box thereon can better adapt to the adsorption, removal and storage of impurities of various shapes and sizes, while controlling the impurity storage direction, effectively improving the space utilization rate.

[0020] 2. The present invention uses a special one-layer top plate and a two-layer top plate mechanism arranged on the circular opening at the top of the vertical mixing box, so that during the unloading process, concrete materials and strengthening materials can be unloaded simultaneously through a double channel, or can be unloaded arbitrarily through a single channel. After the unloading is completed, the material can be sealed and vacuumed in an orderly manner, and lime water and carbon dioxide can be pumped in synchronously for carbon strengthening. After the strengthening is completed, the excess lime water can be pumped out through a lime water pump out machine, and the material can be unloaded. This method efficiently integrates the entire unloading and regeneration strengthening on several mechanisms, making the entire strengthening process more compact, with high space utilization and good strengthening effect. Each process is completed by a corresponding mechanism, which can better control the variables, is beneficial to the preparation efficiency of the re-melting and rework after detection, and can produce concrete with stronger performance.

[0021] 3. Use two impurity removal mechanisms to remove impurities from the waste concrete before and after crushing, then add the concrete into the strengthening mixing box and mix it with carbonaceous materials for stirring. During stirring, close the mixing box to make it sealed, pump lime water into the concrete through the lime water pump to soak it, extract the excess lime water after completion, and then use the vacuum unit to evacuate the box, and then fill it with carbon dioxide to carbonize the concrete. After strengthening, the concrete is discharged from the mixing box discharge port to the carrier box on the rail trolley. A large and a small carrier box are used to store the finished concrete and sample concrete respectively, and transport them to the processing and curing box for secondary processing. After completion, the small carrier box passes through the pressure tester, tension tester, bending tester, etc. on the monitoring track line in turn. Machines, water absorption testers, shrinkage testers, and fatigue testing machines are used to complete various performance index tests with manual assistance. If the requirements are met, the concrete is transported back to the processing and curing box for storage. Other finished concrete from the same batch can also be stored in it. If the requirements are not met, the large transport box is controlled to move to the recycling robot arm through the recycling track line. With the assistance of the robot arm, the finished concrete is placed on the conveyor belt before crushing again for secondary crushing and processing strengthening, realizing the integration of carbon strengthening, large-area adsorption, mineralization, quality inspection, and recycling of recycled concrete. A large amount of reinforced high-performance concrete can be produced at the same time, which improves efficiency. At the same time, the quality inspection and recycling mechanism can ensure the performance quality of the produced concrete, greatly saving quality control costs.

[0022] 4. The present invention connects the processing, curing, production, monitoring and re-melting processes of recycled concrete through the transfer track. The design of large and small transport boxes enables samples and finished concrete to be tested and analyzed for performance and re-melted for re-preparation on the monitoring track and the re-melting track, respectively, thereby effectively improving the preparation efficiency and the performance of the prepared concrete. At the same time, by analyzing the performance of concrete, the preparation process can be effectively improved, various variables in the preparation process can be adjusted, and the most suitable recycled concrete enhanced preparation plan can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the crushing and impurity removal part of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the primary impurity removal unit of the present invention;

[0027] Figure 4 It is a schematic diagram of the overall structure of the regeneration strengthening part of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the first-layer top plate and the second-layer top plate of the present invention;

[0029] Figure 6 It is a schematic diagram of the overall structure of the transport and movement part, quality monitoring part, and processing and maintenance part of the present invention.

[0030] Description of reference numerals:

[0031] 1000- Crushing and removing impurities part:

[0032] 1001-ground; 1100-primary impurity removal unit; 1101-conveyor belt; 1102-impurity removal gantry; 1102a-impurity removal track; 1103-impurity removal electric push rod mounting plate; 1104-impurity removal electric push rod; 1105-impurity removal electric permanent magnetic chuck; 1106-impurity removal storage box; 1200-jaw crusher; 1300-secondary impurity removal unit;

[0033] 2000-Regeneration Strengthening Part:

[0034] 2001-vertical mixing box; 2002-first floor top plate; 2002a-first floor discharge port; 2002b-rack rail mounting seat; 2002c-rack rail; 2002d-first three-way valve; 2002e-second three-way valve; 2002f-second three-way valve mounting seat; 2003-second floor top plate; 2003a-second floor discharge port; 2003b-stepping motor; 2003c-gear;

[0035] 2100-vacuum pump; 2200-carbon dioxide pump; 2300-lime water pump in; 2400-lime water pump out;

[0036] 3000-Transportation moving part:

[0037] 3001-transfer track; 3002a-small carrier box; 3002b-large carrier box; 3003-recycling robot arm;

[0038] 4000-Quality Monitoring Section:

[0039] 4001-pressure testing machine; 4002-tensile testing machine; 4003-bending testing machine; 4004-water absorption tester; 4005-shrinkage tester; 4006-fatigue testing machine;

[0040] 5000-Processing and maintenance part. DETAILED DESCRIPTION

[0041] In order to facilitate ordinary technicians in the field to understand and implement the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the implementation examples described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0042] Next, combine Figures 1 to 6 A device and method for carbon-enhanced large-area adsorption mineralization of recycled concrete provided by the present invention are introduced in detail.

[0043] Depend on Figure 1 As shown, the recycled concrete carbon-enhanced large-area adsorption mineralization device of the present invention includes a crushing and impurity removal part 1000, a regeneration and strengthening part 2000, and a transfer and movement part 3000 which are connected in sequence, wherein the transfer and movement part 3000 connects the regeneration and strengthening part 2000 with the processing and maintenance part 5000 through its transfer track 3001, and the monitoring track line in the branch of the transfer track 3001 passes through the various monitoring mechanisms of the quality monitoring part 4000, and the end of the return track line in the branch of the transfer track 3001 is close to the front end of the crushing and impurity removal part 1000.

[0044] Depend on Figure 2 , Figure 3 As shown, the crushing and impurity removal part 1000 includes a ground 1001 serving as the base of the entire device, on which the regeneration and strengthening part 2000, the transfer and movement part 3000, the quality monitoring part 4000, and the processing and maintenance part 5000 are all installed; the crushing and impurity removal part 1000 also includes a primary impurity removal unit 1100, a jaw crusher 1200, and a secondary impurity removal unit 1300 which are sequentially installed on the ground 1001 from left to right; the primary impurity removal unit 1100 has the same structure as the secondary impurity removal unit 1300, and is arranged before and after the feed port of the jaw crusher 1200, and is used to remove impurities from the waste concrete before and after crushing, respectively.

[0045] The primary impurity removal unit 1100 includes a conveyor belt 1101 serving as a waste concrete transport track. The conveyor belt 1101 is divided into two sections, namely, horizontal conveying section and lifting conveying section. An impurity removal gantry 1102 is installed on the ground 1001 through the horizontal conveying section. The end of the lifting conveying section of the primary impurity removal unit 1100 is close to the feed port of the jaw crusher 1200. The horizontal conveying section of the secondary impurity removal unit 1300 extends to the lower end of the discharge port of the jaw crusher, and the end of the lifting conveying section is close to the top of the feed port of the vertical mixing box 2001. The left and right horizontal bars at the upper end of the impurity removal gantry 1102 are provided with longitudinal impurity removal tracks 1102a. The electric push rod mounting plate 1103 is installed between the two impurity removal tracks 1102a on the two cross bars through an electric trolley. Four evenly distributed impurity removal electric push rods 1104 are provided on the impurity removal electric push rod mounting plate 1103 (only four impurity removal electric push rods are provided in this embodiment. The size of the impurity removal gantry 1102 can be adjusted according to actual conditions, and then the width of the impurity removal electric push rod mounting plate 1103 can be adjusted, and then the number of electric push rods thereon can be adjusted to adapt to actual conditions to obtain the maximum impurity removal efficiency). The output end of each impurity removal electric push rod 1104 is connected to a rotating motor, and the output end of the rotating motor is connected to an impurity removal electric permanent magnetic suction cup 1105.

[0046] The impurity removal gantry 1102 is provided with a plurality of impurity removal storage boxes 1106 of different sizes below the impurity removal track 1102a except for the horizontal conveying section of the conveyor belt 1101. The impurity removal storage boxes 1106 include a storage box located at the end with the same width as the impurity removal gantry 1102, two storage boxes with a quarter of the width of the impurity removal gantry 1102 located on both sides of the front end, and a storage box with two quarters of the width of the impurity removal gantry 1102 located in the middle of the front end. The width and position of the impurity removal storage boxes 1106 are set to match the four impurity removal electric push rods 1104 on the impurity removal electric push rod mounting plate 1103 and the rotating motor and impurity removal electric permanent magnetic chuck 1105 thereon;The purpose of setting up this structure is that when it is necessary to remove impurities and crush the waste concrete or recycled concrete, the waste concrete is first placed on the horizontal conveying section of the conveyor belt 1101 of the primary impurity removal unit 1100, and the impurity removal electric push rod mounting plate 1103 is controlled to move to the top of the horizontal conveying section of the conveyor belt 1101 of the impurity removal track 1102a through the electric trolleys at both ends, and the impurity removal electric push rod 1104 thereon is controlled to lower the impurity removal electric permanent magnetic suction cup 1105 at its output end close to the concrete surface, and the impurity removal electric permanent magnetic suction cup 1105 is turned on to absorb impurities in the concrete such as metal fragments, screws, nails, steel bars, etc. After the adsorption is completed, the impurity removal electric push rod 1104 is retracted, and the impurity removal electric push rod mounting plate 1103 is moved to the top of the impurity removal storage box 1106, and the impurity removal electric push rod 1104 is lowered and the impurity removal electric permanent magnetic suction cup 1105 is closed, so that the impurities thereon lose the magnetic effect and fall into the impurity removal storage box 1106 for storage. It should be noted here that the above method can be applied to the adsorption and impurity removal of structures such as smaller screws, nails, powder, etc., and each impurity removal electric permanent magnetic suction cup 1105 can be used for independent impurity removal, while for structures such as longer steel bars and metal fragments of different shapes, multiple sets of impurity removal electric permanent magnetic suction cups 1105 can be used. The impurities are removed by cooperating with the impurity removal storage boxes 1106 of different sizes and positions. For example, when removing impurities from a certain length of steel bars, the two impurity removal electric permanent magnetic suction cups 1105 in the middle can be used to jointly suck up a steel bar, and then put it into the impurity removal storage box 1106 of two-quarters width of the impurity removal gantry 1102. When the steel bars are longer, the four impurity removal electric permanent magnetic suction cups 1105 can jointly suck up a steel bar and put it into the impurity removal storage box 1106 of the same width as the impurity removal gantry 1102 at the rear end. When the above two storage boxes are full or cannot be stored, the two impurity removal electric pushers at both ends can be used. The rotating motor under the rod 1104 first sucks up the steel bar through the impurity removal permanent magnetic suction cup 1105, and then controls the impurity removal permanent magnetic suction cup 1105 to rotate through the rotating motor, thereby driving the steel bar to rotate, so that it can be placed in the impurity removal storage box 1106 at both ends, which is only one-fourth the width of the impurity removal gantry 1102 but longer in length. The width, length and position of the impurity removal storage box 1106 can be adjusted according to actual conditions, so that steel bars and metal fragments of any length and shape can be stored in the impurity removal storage box 1106 through the impurity removal permanent magnetic suction cup 1105, and the space utilization can be better realized by cooperating with the rotating motor. ;

[0047] After the primary impurity removal unit 1100 completes adsorption, the conveyor belt 1101 can be started to lift the concrete in the horizontal conveying section through the lifting conveying section and drop it into the feeding port of the jaw crusher 1200. The jaw crusher 1200 is started to crush the concrete. The crushed concrete falls into the horizontal conveying section of the conveyor belt 1101 of the secondary impurity removal unit 1300 through the discharging port. By starting the conveyor belt, the crushed concrete enters the working range of the impurity removal mechanism of the secondary impurity removal unit 1300 again. The secondary impurity removal is performed in the same manner as the primary impurity removal unit 1100. Since the concrete is larger before crushing, it is more suitable for removing longer steel bars and metal fragments. The secondary impurity removal unit 1300 after crushing is mainly responsible for the adsorption and impurity removal of smaller screws, nails and powders. After the secondary impurity removal is completed, the concrete is lifted to the end of the lifting conveying section through its conveyor belt and falls into the first-layer discharge port 2002a of the vertical mixing box 2001 for regeneration and strengthening process.

[0048] Compared with the prior art, the present invention removes impurities before and after concrete crushing through the designed primary impurity removal, crushing and secondary impurity removal, effectively removing impurities in the concrete and preparing for the subsequent strengthening of high-quality concrete. The special structural design of the primary impurity removal unit 1100 and the secondary impurity removal unit 1300 of the present invention, although using the same mechanism, can deal with the adsorption and impurity removal of longer steel bars and larger metal fragments before crushing, and can also handle the adsorption and impurity removal of smaller screws and nails after crushing. The relative number, size and position design of the impurity removal electric push rod 1104, rotating motor, impurity removal electric permanent magnetic suction cup 1105 and impurity removal storage box 1106 thereon can better adapt to the adsorption, removal and storage of impurities of various shapes and sizes, while controlling the impurity storage direction, effectively improving space utilization.

[0049] Depend on Figure 4 , Figure 5As shown, the regeneration strengthening part 2000 includes a vertical mixing box 2001 as a main body installed on the ground 1001, a vacuum pump 2100, a carbon dioxide pump 2200, a lime water pump inlet 2300, and a lime water pump out 2400; the vertical mixing box 2001 is installed on the ground 1001 through four vertical poles, the upper end of the vertical mixing box 2001 is a circular opening, a mixing mechanism is provided in the box, and a discharge port and a lime water pump out valve are provided at the lower end; the lime water pump out valve is connected to the ground 1001 through a pipeline. The vertical mixing box 2001 is connected to the lime water pump 2400; a circular top plate 2002 is fixedly installed on the circular opening at the upper end of the vertical mixing box 2001, and a discharge port 2002a is provided on one side of the top plate 2002 near the end of the lifting and conveying section of the conveyor belt 1101 of the secondary impurity removal unit 1300, and another discharge port is provided at the opposite position of the top plate 2002, and a ring-shaped rack rail mounting seat 2002b is provided in the middle of the top plate 2002. A rack rail 2002c is provided on the rail mounting seat 2002b; an opening is provided inside the rack rail mounting seat 2002b in the middle of the first floor top plate 2002, and the output end of the first three-way valve 2002d is inserted into the opening; the two input ends of the first three-way valve 2002d are respectively connected to the lime water pump 2300 and the output end of the second three-way valve 2002e through pipelines; the two input ends of the second three-way valve 2002e are respectively connected to the vacuum pump 2100 and the carbon dioxide pump 2100 through pipelines. The machine 2200 is connected; a second three-way valve mounting seat 2002f is also provided on the inner upper surface of the rack track mounting seat 2002b in the middle of the first layer top plate 2002, and a second three-way valve 2002e is fixedly installed on the second three-way valve mounting seat 2002f; it can also be arranged here that two openings are set in the middle of the first layer top plate 2002, and the first three-way valve 2002d and the second three-way valve 2002e are respectively installed, so that the lime water pumping and the carbon dioxide charging can be carried out simultaneously.

[0050] In addition, a second-layer top plate 2003 of a size that completely matches the first-layer top plate 2002 is provided on the first-layer top plate 2002. The periphery of the second-layer top plate 2003 is provided with two second-layer feed openings 2003a that are identical to the two first-layer feed openings 2002a on the first-layer top plate 2002. At the same time, an additional second-layer feed opening 2003a is provided at other positions on the periphery of the second-layer top plate 2003, and the size is also the same as the first-layer feed opening 2002a. A circular opening is provided in the middle of the second-layer top plate 2003, and the size of the circular opening is slightly larger than the rack track mounting seat 2002b. The second-layer top plate 2003 can be installed on the first-layer top plate 2002 by passing through the rack track mounting seat 2002b through the circular opening in the middle. The lower surface of the inner ring of the second-layer top plate 2003 is provided with a plurality of bull's eye balls, and the outer periphery of the second-layer discharge port 2003a of the outer ring is provided with a sealing strip, which can be loaded and rotated by the bull's eye balls, and the sealing strip near the discharge port can further improve the sealing degree of the entire top plate when it is closed; the upper surface of the inner ring of the second-layer top plate 2002 near the rack track 2002c is provided with a The stepper motor 2003b has a gear 2003c connected to its output end, and the gear 2003c meshes with the rack track 2002c. The purpose of setting up this structure is that when the regeneration and strengthening process is carried out, the two second-layer discharge ports 2003a correspond to the first-layer discharge port 2002a to form a complete channel, or here only an additional second-layer discharge port 2003a corresponds to a first-layer discharge port 2002a near the secondary impurity removal unit 1300 to form a complete channel, and the other channel Close, concrete falls into the vertical mixing box 2001 through the channel for mixing. When other strengthening materials such as carbonaceous materials need to be added, they can be added into the box through another channel. If the other channel is closed, the stepper motor 2003b can control the gear 2003c on it to rotate on the rack track 2002c, thereby driving the entire second-layer top plate 2003 to rotate on the first-layer top plate 2002, until the second-layer discharge port 2003a corresponds to the first-layer discharge port 2002a, and the other channel is opened for discharge;After the unloading is completed, the strengthening process is carried out. By adjusting the rotation of the second-layer top plate 2003, each second-layer unloading port 2003a does not correspond to any first-layer unloading port 2002a, thereby achieving the sealing inside the box. At this time, the vacuum pump 2100 is used to evacuate the box through the second three-way valve 2002e and the first three-way valve 2002d, and then the lime water pumping machine 2300 and the carbon dioxide pumping machine 2200 are used to synchronously pump lime water and carbon dioxide into the box to promote the carbonization reaction. In this way, the calcified substances inside the concrete can be generated more evenly and the mechanical properties and durability of the concrete can be improved. After the strengthening is completed, the lime water pumping machine 2400 is used to pump out excess lime water through the lime water pumping valve at the bottom. At this point, the regeneration strengthening process is completed, and the strengthened concrete is unloaded to the mobile transfer part 3000 through the discharge port at the bottom of the vertical mixing box 2001 for the next step. ;

[0051] Compared with the prior art, the present invention uses a special first-layer top plate 2002 and a second-layer top plate 2003 mechanism arranged on the circular opening at the top of the vertical mixing box 2001, so that during the unloading process, concrete materials and strengthening materials can be unloaded simultaneously in a double-channel manner, or in a single channel at will. After the unloading is completed, the concrete materials can be sealed and vacuumed in an orderly manner, and lime water and carbon dioxide can be pumped in synchronously for carbon strengthening. After the strengthening is completed, the excess lime water can be pumped out by a lime water pump out machine, and the material can be unloaded. This method efficiently integrates the entire unloading and regeneration strengthening on several mechanisms, making the entire strengthening process more compact, with high space utilization and good strengthening effect. Each process is completed by the corresponding mechanism, which can better control the variables, is beneficial to the preparation efficiency of the re-melting after detection, and can produce concrete with stronger performance.

[0052] Depend on Figure 6 As shown, the mobile transfer part 3000 is mainly composed of a transfer track 3001 installed on the ground 1001, and the transfer track 3001 is composed of a track between the regeneration and strengthening part 2000 and the processing and maintenance part 5000. One end of the transfer track 3001 extends to the bottom of the discharge port at the lower part of the vertical mixing box 2001, and the other end extends to the box body of the processing and maintenance part 5000. At the same time, one side of the transfer track 3001 is also extended with a parallel monitoring track line and a return track line. A quality monitoring part 4000 is provided on one side of the monitoring track line. The end of the return track line extends to the vicinity of the primary impurity removal unit 1100, and a return robot arm 3003 is provided on one side; a small carrying box 3002a and a large carrying box 3002b are provided on the transfer track 3001. The small carrying box 3002a is suitable for the transportation of small batches of sample recycled concrete, and the large carrying box 3002b is suitable for the transportation of large batches of finished recycled concrete.

[0053] The quality monitoring part 4000 includes, from left to right, a pressure testing machine 4001, a tensile testing machine 4002, a bending testing machine 4003, a water absorption tester 4004, a shrinkage tester 4005, and a fatigue testing machine 4006; the processing and curing part 5000 is a processing and curing box, which is equipped with various recycled concrete pouring, processing, curing, and demoulding mechanisms to complete the recycled concrete production process; the purpose of designing this structure is to control the small carrier box 3002a or the large carrier box 3002b to move to the side of the transfer track 3001 close to the vertical mixing box 2001 after the regeneration and strengthening is completed, and the strengthened concrete material is unloaded into the carrier box through the discharge port at the bottom of the vertical mixing box 2001. After unloading, the carrier box is controlled to move to the processing and curing part 5000 to process and cure the concrete material for production. After the production is completed, the small carrier box 3002a is controlled to move to the processing and curing part 5000 to process and cure the concrete material for production. Move some samples to the monitoring track line, pass through the pressure testing machine 4001, tensile testing machine 4002, bending testing machine 4003, water absorption tester 4004, shrinkage tester 4005, fatigue testing machine 4006 in turn, and test various performance indicators of the sample concrete with manual assistance. If the final test result does not meet the standard, the cause of the problem is determined after error analysis, the process is adjusted and the re-melting process is carried out. At this time, the concrete produced in the same batch is controlled to move from the re-melting track line to the vicinity of the primary impurity removal unit 1100 through the large carrying box 3002b, and the finished concrete is assisted by the re-melting mechanical arm 3003 to be clamped and moved to the conveyor belt 1101 of the primary impurity removal unit 1100 for re-melting preparation. The subsequent processes are the same as above; if the finished product indicators meet the standards, re-melting is not carried out, and the recycled concrete produced in this batch can be produced.

[0054] Compared with the prior art, the present invention connects the processing, curing, production, monitoring and re-melting processes of recycled concrete through the transfer track 3001. The design of large and small transport boxes enables samples and finished concrete to be tested and analyzed for performance and re-melted for re-preparation on the monitoring track line and the re-melting track line respectively, which effectively improves the preparation efficiency and the performance of the prepared concrete. At the same time, by analyzing the performance of concrete, the preparation process can be effectively improved, various variables in the preparation process can be adjusted, and the most suitable recycled concrete enhanced preparation plan can be obtained.

[0055] Accordingly, the method for large-area adsorption mineralization of recycled concrete carbon-enhanced is as follows:

[0056] S1. When it is necessary to remove impurities from waste concrete or recycled concrete, first put the waste concrete on the horizontal conveying section of the conveyor belt 1101 of the primary impurity removal unit 1100, control the impurity removal electric push rod mounting plate 1103 to move to the top of the horizontal conveying section of the conveyor belt 1101 of the impurity removal track 1102a through the electric trolleys at both ends, control the impurity removal electric push rod 1104 on it to lower the impurity removal electric permanent magnetic suction cup 1105 at its output end close to the concrete surface, turn on the impurity removal electric permanent magnetic suction cup 1105 to absorb impurities in the concrete such as metal fragments, screws, nails, steel bars, etc., and after the adsorption is completed Retract the impurity removal electric push rod 1104, move the impurity removal electric push rod mounting plate 1103 to the top of the impurity removal storage box 1106, lower the impurity removal electric push rod 1104 and close the impurity removal electric permanent magnetic suction cup 1105, so that the impurities on it lose the magnetic effect and fall into the impurity removal storage box 1106 for storage. It should be noted here that the above method can be applied to the adsorption and impurity removal of structures such as smaller screws, nails, powder, etc., and each impurity removal electric permanent magnetic suction cup 1105 can be used for independent impurity removal, while for structures such as longer steel bars, metal fragments of different shapes, etc., multiple sets of impurity removal electric permanent magnetic suction cups 1105 with different sizes can be used. For example, when removing impurities from a certain length of steel bar, two impurity removal electric permanent magnetic suction cups 1105 in the middle can be used to jointly suck up a steel bar, and then put it into the impurity removal storage box 1106 of two-quarters width of the impurity removal gantry 1102. When the steel bar is longer, four impurity removal electric permanent magnetic suction cups 1105 can be used to jointly suck up a steel bar and put it into the impurity removal storage box 1106 of the same width as the impurity removal gantry 1102 at the rear end. When the above two impurity removal storage boxes are full or cannot be stored, the two impurity removal electric push rods at both ends can be used. The rotating motor under 1104 first sucks up the steel bar through the impurity removal permanent magnetic suction cup 1105, and then controls the impurity removal permanent magnetic suction cup 1105 to rotate through the rotating motor, thereby driving the steel bar to rotate, so that it can be placed in the impurity removal storage box 1106 at both ends, which is only one-fourth the width of the impurity removal gantry 1102 but longer in length. The width, length and position of the impurity removal storage box 1106 can be adjusted according to actual conditions, so that steel bars and metal fragments of any length and shape can be stored in the impurity removal storage box 1106 through the impurity removal permanent magnetic suction cup 1105, and the space utilization can be better realized by cooperating with the rotating motor;When the primary impurity removal unit 1100 completes adsorption, the conveyor belt 1101 can be started to raise the concrete in the horizontal conveying section through the lifting conveying section and then drop it into the feed port of the jaw crusher 1200. The jaw crusher 1200 is started to crush the concrete. The crushed concrete falls into the horizontal conveying section of the conveyor belt 1101 of the secondary impurity removal unit 1300 through the discharge port. By starting the conveyor belt, the crushed concrete enters the working range of the impurity removal mechanism of the secondary impurity removal unit 1300 again. The secondary impurity removal is carried out in the same way as the primary impurity removal unit 1100. Because the concrete is larger before crushing, it is more suitable for removing longer steel bars and metal fragments. The secondary impurity removal unit 1300 after crushing is mainly responsible for the adsorption and impurity removal of smaller screws, nails, and powders. After the secondary impurity removal is completed, the concrete is raised to the end of the lifting conveying section through its conveyor belt and falls into the first layer discharge port 2002a of the vertical mixing box 2001 for regeneration and strengthening process. ;

[0057] S2. When the regeneration and strengthening process is carried out, the two second-layer discharge ports 2003a correspond to the first-layer discharge port 2002a to form a complete channel, or only an additional second-layer discharge port 2003a corresponds to a first-layer discharge port near the secondary impurity removal unit 1300 to form a complete channel, and the other channel is closed. The concrete falls into the vertical mixing box 2001 through the channel for mixing. When other strengthening materials such as carbonaceous materials need to be added, they can be added to the box through another channel. If the other channel is closed, the stepper motor 2003b can be used to control the gear 2003c on the rack track 2002c to rotate, thereby driving the entire second-layer top plate 2003 to rotate on the first-layer top plate 2002, and adjusting until the second-layer discharge port 2003a corresponds to the first-layer discharge port 2002a, and the other channel is opened for discharge; after the discharge is completed, the strengthening is carried out The process is to adjust the rotation of the second-layer top plate 2003 so that each second-layer discharge port 2003a does not correspond to any first-layer discharge port 2002a, thereby realizing the closure inside the box. At this time, the box is evacuated by using the vacuum pump 2100 through the second three-way valve 2002e and the first three-way valve 2002d, and then lime water and carbon dioxide are synchronously pumped into the box by the lime water pumping machine 2300 and the carbon dioxide pumping machine 2200 to promote the carbonization reaction. In this way, the calcified substances inside the concrete can be generated more evenly and the mechanical properties and durability of the concrete can be improved. After the strengthening is completed, the lime water pumping machine 2400 is used to pump out excess lime water through the lime water pumping valve at the bottom. At this point, the regeneration and strengthening process is completed, and the strengthened concrete is discharged to the mobile transfer part 3000 through the discharge port at the bottom of the vertical mixing box 2001 for the next process.

[0058] S3. After the regeneration and strengthening is completed, the small carrier box 3002a or the large carrier box 3002b is controlled to move to the transfer track 3001 close to the side of the vertical mixing box 2001, and the strengthened concrete material is unloaded into the carrier box through the discharge port at the bottom of the vertical mixing box 2001. After the unloading is completed, the carrier box is controlled to move to the processing and curing part 5000 to process and cure the concrete material for output. After the output is completed, the small carrier box is controlled to move with some samples to the monitoring track line, and passes through the pressure testing machine 4001, the tension testing machine 4002, the bending testing machine 4003, the water absorption tester 4004, the shrinkage tester 4005, the fatigue tester 4006, and the fatigue tester 4007. The testing machine 4006 also tests the various performance indicators of the sample concrete with manual assistance. If the final test result does not meet the standard, the cause of the problem is determined after error analysis, the process is adjusted and the re-melting process is carried out. At this time, the concrete produced in the same batch is controlled to move from the re-melting track line to the vicinity of the primary impurity removal unit 1100 through the large carrying box 3002b, and the finished concrete is assisted by the re-melting robot arm 3003 to be clamped and moved to the conveyor belt 1101 of the primary impurity removal unit 1100 for re-melting preparation. The subsequent processes are the same as above; if the finished product indicators meet the standard, re-melting is not required, and the recycled concrete produced in this batch can be produced.

[0059] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be understood by anyone familiar with the technology within the technical scope disclosed by the present invention should be included in the scope of the present invention.

Claims

1. A large-area adsorption mineralization device for carbon-enhanced recycled concrete, characterized in that: include: The crushing and impurity removal part (1000) includes a ground (1001) serving as the base of the entire device, a primary impurity removal unit (1100) installed on the ground (1001) from left to right, a jaw crusher (1200), and a secondary impurity removal unit (1300), which are used to remove impurities from waste concrete before and after crushing; The regeneration and strengthening part (2000) comprises a vertical mixing box (2001) installed on the ground (1001), and a vacuum pump (2100), a carbon dioxide pump (2200), a lime water pump inlet (2300), and a lime water pump out (2400) connected to the vertical mixing box (2001). A stirring mechanism is provided inside the vertical mixing box (2001). The regeneration and strengthening part (2000) is used to strengthen the concrete after crushing and impurity removal. The mobile transfer part (3000) is mainly composed of a transfer track (3001) installed on the ground (1001), and a small carrying box (3002a) and a large carrying box (3002b) are arranged on the transfer track (3001). The transfer track (3001) is composed of a track between the regeneration and strengthening part (2000) and the processing and curing part (5000). One end of the transfer track (3001) extends to the bottom of the discharge port at the bottom of the vertical mixing box (2001), and the other end extends to the box body of the processing and curing part (5000). At the same time, a parallel monitoring track line and a return track line are also extended on one side of the transfer track (3001); The processing and curing part (5000) is used to process and cure the concrete material and produce the product. After the product is produced, the small carrying box (3002a) is controlled to move with part of the sample to the monitoring track line; The quality monitoring part (4000) includes a pressure testing machine (4001), a tensile testing machine (4002), a bending testing machine (4003), a water absorption tester (4004), a shrinkage tester (4005), and a fatigue testing machine (4006) which are arranged in sequence from left to right along one side of the monitoring track line, and are used to test the performance indicators of the sample concrete; if the test result does not meet the standard, the concrete produced in the same batch is controlled to be moved out of the processing and curing part (5000) through the large carrying box (3002b), and moved to the primary impurity removal unit (1100) through the re-melting track line, and the finished concrete is assisted by the re-melting mechanical arm (3003) to be clamped and moved to the conveyor belt (1101) of the primary impurity removal unit (1100) for re-melting preparation; The primary impurity removal unit (1100) and the secondary impurity removal unit (1300) have the same structure and are arranged before and after the feed port of the jaw crusher (1200) to remove impurities from the waste concrete before and after crushing respectively; The primary impurity removal unit (1100) comprises a conveyor belt (1101) serving as a waste concrete transport track, wherein the conveyor belt (1101) is divided into two sections, namely, a horizontal conveying section and a lifting conveying section. The impurity removal gantry (1102) passes through the horizontal conveying section and is installed on the ground (1001). The end of the lifting conveying section of the primary impurity removal unit (1100) is close to the feed inlet of the jaw crusher (1200). The horizontal conveying section of the secondary impurity removal unit (1300) extends to the lower end of the discharge port of the jaw crusher, and the end of the lifting conveying section is close to the upper part of the feed inlet of the vertical mixing box (2001). The left and right cross bars at the upper end of the impurity removal gantry (1102) are provided with longitudinal impurity removal tracks (1102a); an impurity removal electric push rod mounting plate (1103) is mounted between the two impurity removal tracks (1102a) on the two cross bars through an electric trolley; four impurity removal electric push rods (1104) are evenly distributed on the impurity removal electric push rod mounting plate (1103); the output end of each impurity removal electric push rod (1104) is connected to a rotating motor, and the output end of the rotating motor is connected to an impurity removal electric permanent magnetic chuck (1105); The impurity removal gantry (1102) is provided with a plurality of impurity removal storage boxes (1106) of different sizes below the impurity removal track (1102a) outside the horizontal conveying section of the conveyor belt (1101), wherein the impurity removal storage boxes (1106) include a storage box located at the end with the same width as the impurity removal gantry (1102), two storage boxes located at both sides of the front end with a quarter of the width of the impurity removal gantry (1102), and a storage box located in the middle of the front end with two quarters of the width of the impurity removal gantry (1102); When it is necessary to remove impurities from waste concrete or recycled concrete, the waste concrete is first placed on the horizontal conveying section of the conveyor belt (1101) of the primary impurity removal unit (1100), the impurity removal electric push rod mounting plate (1103) is controlled to move to the top of the horizontal conveying section of the conveyor belt (1101) of the impurity removal track (1102a) through the electric trolleys at both ends, the impurity removal electric push rod (1104) on it is controlled to lower the impurity removal electric permanent magnetic suction cup (1105) at its output end close to the concrete surface, the impurity removal electric permanent magnetic suction cup (1105) is turned on to adsorb impurities in the concrete, and after the adsorption is completed, the impurity removal electric push rod (1104) is retracted, and the impurity removal electric push rod mounting plate (1103) is moved to the top of the impurity removal storage box (1106), the impurity removal electric push rod (1104) is lowered and the impurity removal electric permanent magnetic suction cup (1105) is closed, so that the impurities on it fall into the impurity removal storage box (1106) for storage due to the loss of magnetic force; The lower end of the vertical mixing box (2001) is provided with a discharge port and a lime water pumping valve, and the lime water pumping valve is connected to the lime water pumping machine (2400) through a pipeline; a circular top plate (2002) is fixedly mounted on the circular opening at the upper end of the vertical mixing box (2001); a discharge port (2002a) is arranged on one side of the top plate (2002) close to the end of the lifting and conveying section of the conveyor belt (1101) of the secondary impurity removal unit (1300), and another discharge port is arranged at the opposite position of the top plate (2002); an annular rack track mounting seat (2002b) is arranged in the middle of the top plate (2002), and a rack track (2002c) is arranged on the rack track mounting seat (2002b); An opening is provided inside the rack track mounting seat (2002b) in the middle of the first floor top plate (2002), and the output end of the first three-way valve (2002d) is inserted into the opening; the two input ends of the first three-way valve (2002d) are respectively connected to the lime water pump (2300) and the output end of the second three-way valve (2002e) through pipelines; the two input ends of the second three-way valve (2002e) are respectively connected to the vacuum pump (2100) and the carbon dioxide pump (2200) through pipelines; the inner upper surface of the rack track mounting seat (2002b) in the middle of the first floor top plate (2002) is also provided with a second three-way valve mounting seat (2002f), and the second three-way valve (2002e) is fixedly mounted on the second three-way valve mounting seat (2002f); The first-layer top plate (2002) is provided with a second-layer top plate (2003) of a size that completely matches the first-layer top plate (2002); the second-layer top plate (2003) is provided with two second-layer discharge openings (2003a) on the periphery of the second-layer top plate (2003) that are identical to the two first-layer discharge openings (2002a) on the first-layer top plate (2002); and an additional second-layer discharge opening (2003a) is provided at other positions on the periphery of the second-layer top plate (2003), and the size is also identical to the first-layer discharge opening (2002a); the second-layer top plate (2003) is provided with a circular opening in the middle The second-layer top plate (2003) has an opening larger than the rack track mounting seat (2002b), and the second-layer top plate (2003) passes through the rack track mounting seat (2002b) through the circular opening in the middle, and is then mounted on the first-layer top plate (2002); a stepping motor (2003b) is provided on the upper surface of the inner ring of the second-layer top plate (2002) close to the rack track (2002c), and the output end of the stepping motor (2003b) is connected to a gear (2003c), and the gear (2003c) is meshed with the rack track (2002c); When the regeneration and strengthening process is carried out, the two second-layer discharge ports (2003a) correspond to the first-layer discharge port (2002a) to form a complete channel, or here only an additional second-layer discharge port (2003a) and a first-layer discharge port (2002a) close to the secondary impurity removal unit (1300) correspond to form a complete channel, and the other channel is closed. The concrete falls into the box of the vertical mixing box (2001) through the channel for mixing. When other strengthening materials such as carbonaceous materials need to be added, they can be added to the box through another channel. If the other channel is closed, the stepper motor (2003b) can be used to control the gear (2003c) on it to rotate on the rack track (2002c), thereby driving the entire second-layer top plate (2003) to rotate on the first-layer top plate (2002) until the second-layer discharge port (2003a) corresponds to the first-layer discharge port (2002a). ), the other channel is opened for unloading; after unloading, the strengthening process is carried out, by adjusting the rotation of the second-layer top plate (2003) so that each second-layer unloading port (2003a) does not correspond to any first-layer unloading port (2002a), thereby realizing the sealing inside the box, at this time, the box is evacuated by using the vacuum pump (2100) through the second three-way valve (2002e) and the first three-way valve (2002d), and then the box is synchronously pumped with lime water and filled with carbon dioxide by the lime water pumping machine (2300) and the carbon dioxide pumping machine (2200) to promote the carbonization reaction, and after strengthening, the lime water pumping machine (2400) is used to pump out excess lime water through the lime water pumping valve at the bottom, and the regeneration strengthening process is completed, and the strengthened concrete is unloaded into the mobile transfer part (3000) through the discharge port at the bottom of the vertical mixing box (2001) for the next process.

2. A method for large-area adsorption mineralization of recycled concrete carbon using the device as claimed in claim 1, characterized in that: The steps are: S1. When it is necessary to remove impurities from waste concrete or recycled concrete, first put the waste concrete on the horizontal conveying section of the conveyor belt (1101) of the primary impurity removal unit (1100), control the impurity removal electric push rod mounting plate (1103) to move to the top of the horizontal conveying section of the conveyor belt (1101) of the impurity removal track (1102a) through the electric trolleys at both ends, control the impurity removal electric push rod (1104) on it to lower the impurity removal electric permanent magnetic suction cup (1105) at its output end close to the concrete surface, open the impurity removal electric permanent magnetic suction cup (1105) to adsorb impurities in the concrete, retract the impurity removal electric push rod (1104) after adsorption, move the impurity removal electric push rod mounting plate (1103) to the top of the impurity removal storage box (1106), lower the impurity removal electric push rod (1104) and close the impurity removal electric permanent magnetic suction cup (1105), so that the impurities on it lose their magnetic properties. The concrete is then dropped into the impurity storage box (1106) for storage by force; when the primary impurity removal unit (1100) completes adsorption, the conveyor belt (1101) is started to raise the concrete in the horizontal conveying section through the lifting conveying section and then drop it into the feeding port of the jaw crusher (1200); the jaw crusher (1200) is started to crush the concrete; the crushed concrete falls into the horizontal conveying section of the conveyor belt (1101) of the secondary impurity removal unit (1300) through the discharging port; the conveyor belt is started to make the crushed concrete enter the working range of the impurity removal mechanism of the secondary impurity removal unit (1300) again; the secondary impurity removal is performed in the same manner as the primary impurity removal unit (1100); after the secondary impurity removal is completed, the concrete is raised to the end of the lifting conveying section through the conveyor belt and then drops into the first discharge port (2002a) of the vertical mixing box (2001) for regeneration and strengthening process; S2. When the regeneration and strengthening process is carried out, the two second-layer discharge ports (2003a) correspond to the first-layer discharge port (2002a) to form a complete channel, or only an additional second-layer discharge port (2003a) corresponds to a first-layer discharge port near the secondary impurity removal unit (1300) to form a complete channel, and the other channel is closed. Concrete falls into the vertical mixing box (2001) through the channel for mixing. When other strengthening materials such as carbonaceous materials need to be added, they can be added to the box through another channel. If the other channel is closed, the stepper motor (2003b) can be used to control the gear (2003c) on the rack track (2002c) to rotate, thereby driving the entire second-layer top plate (2003) to rotate on the first-layer top plate (2002), and it is adjusted until the second-layer discharge port (2003a) corresponds to the first-layer discharge port (2002a). The other channel is opened to discharge. After the unloading is completed, the strengthening process is carried out. By adjusting the rotation of the second-layer top plate (2003), each second-layer unloading port (2003a) does not correspond to any first-layer unloading port (2002a), thereby achieving the sealing inside the box. At this time, the box is evacuated by using a vacuum pump (2100) through the second three-way valve (2002e) and the first three-way valve (2002d), and then lime water is pumped into the box by the lime water pumping machine (2300) and the carbon dioxide pumping machine (2200) synchronously to promote the carbonization reaction, so that the calcified material inside the concrete is generated more evenly. After the strengthening is completed, the lime water pumping machine (2400) is used to pump out excess lime water through the lime water pumping valve at the bottom. At this point, the regeneration strengthening process is completed, and the strengthened concrete is unloaded to the mobile transfer part (3000) through the discharge port at the bottom of the vertical mixing box (2001) for the next process; S3. After the regeneration and strengthening is completed, the small carrier box (3002a) or the large carrier box (3002b) is controlled to move to the side of the transfer track (3001) close to the vertical mixing box (2001), and the strengthened concrete material is unloaded into the carrier box through the discharge port at the bottom of the vertical mixing box (2001). After the unloading is completed, the carrier box is controlled to move to the processing and curing part (5000) to process and cure the concrete material and produce the product. After the production is completed, the small carrier box is controlled to move with part of the sample to the monitoring track line, and passes through the pressure testing machine (4001), the tensile testing machine (4002), the bending testing machine (4003), the water absorption tester (4004), and the shrinkage tester (4005). 5) The fatigue testing machine (4006) is used to test various performance indicators of the sample concrete with manual assistance. If the final test result does not meet the standard, the cause of the problem is determined after error analysis, the process is adjusted and the re-melting process is carried out. At this time, the concrete produced in the same batch is controlled to move from the re-melting track line to the vicinity of the primary impurity removal unit (1100) through the large carrying box (3002b), and the finished concrete is assisted by the re-melting mechanical arm (3003) to be clamped and moved to the conveyor belt (1101) of the primary impurity removal unit (1100) for re-melting preparation. The subsequent processes are the same as above; if the finished product indicators meet the standard, re-melting is not carried out, and the recycled concrete produced in this batch can be produced.

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