A continuous production device for microbial mineralization recycled aggregate

Abstract

The application provides a continuous production device for microbial mineralization recycled aggregate, which comprises a first conveying belt, a spraying assembly and a drying assembly. The first conveying belt is used for conveying recycled aggregate to be sprayed. The spraying assembly is suspended above the first conveying belt. The spraying assembly comprises a first spraying part and a second spraying part. One first spraying part is arranged at a position upstream of the driving direction of the recycled aggregate on the first conveying belt compared with one second spraying part. The first spraying part is used for spraying bacteria solution to the recycled aggregate arranged on the first conveying belt. The second spraying part is used for spraying calcium source reaction solution to the recycled aggregate arranged on the first conveying belt. The drying assembly is arranged at a position downstream of the driving direction of the recycled aggregate on the first conveying belt compared with the spraying assembly. The drying assembly is used for drying the sprayed recycled aggregate. The application has the advantages of short processing period and small amount of reagent.

Description

Technical Field

[0001] This application relates to the field of recycled aggregate production and processing, and in particular to a continuous production equipment for microbial mineralization recycled aggregate. Background Technology

[0002] With the acceleration of urbanization, the output of construction waste has increased dramatically. Crushing and processing waste concrete into recycled aggregate is the main way to utilize resources. However, the aging cement mortar adhering to the surface of recycled aggregate results in high porosity, high water absorption, and low strength. These performance defects severely limit its high-value application in structural concrete.

[0003] Microbial-induced calcium carbonate precipitation technology is an emerging green reinforcement technology. Its principle is based on the use of urease produced by specific microorganisms (such as Bacillus pasteurellii) during their metabolism to decompose urea and promote calcium carbonate precipitation. These precipitates can effectively fill the pores and microcracks inside the recycled aggregate, thereby improving its performance.

[0004] Existing technologies for microbial mineralization and regeneration of aggregates mostly employ batch soaking methods, where the aggregate is immersed in a mixture of bacterial solution and calcium source reaction solution for several hours or even days. This method suffers from drawbacks such as long processing cycles and high reagent consumption. How to solve these problems is a question that those skilled in the art need to consider. Utility Model Content

[0005] To address the problems in the prior art, this application provides a continuous production equipment for microbial mineralization and recycling of aggregates.

[0006] In one embodiment, the continuous production equipment for microbial mineralization recycled aggregate includes a first conveyor belt, a spraying assembly, and a drying assembly. The first conveyor belt transports the recycled aggregate to be sprayed. The spraying assembly is suspended above the first conveyor belt and includes a first sprayer and a second sprayer. At least one first sprayer is positioned upstream of the first conveyor belt in the direction the recycled aggregate is being transported. The first sprayer sprays bacterial solution onto the recycled aggregate on the first conveyor belt, and the second sprayer sprays calcium source reaction solution onto the recycled aggregate on the first conveyor belt. The drying assembly is positioned downstream of the spraying assembly in the direction the recycled aggregate is being transported, and is used to dry the sprayed recycled aggregate.

[0007] Understandably, positioning the first spray unit upstream of the second spray unit allows the bacterial solution to spray the recycled aggregate first, followed by the calcium source reaction solution. This time difference between the sprayed recycled aggregate and the contact with the calcium source reaction solution facilitates thorough mixing. It avoids pre-mixing and reacting the bacterial solution and calcium source reaction solution outside the surface of the recycled aggregate. This ensures that calcium carbonate crystals are precisely generated and deposited on the surface and at internal defects of the recycled aggregate, improving the effectiveness of mineralization repair and the stability of product quality. Integrating the drying component directly into the first conveyor belt, which drives the recycled aggregate downstream of the spray unit, allows the sprayed recycled aggregate to immediately enter the drying stage, quickly removing excess moisture and promoting the crystallization and solidification of mineralized products. This layout not only avoids secondary contamination or performance changes that may occur with wet recycled aggregate during stockpiling but also shortens the overall production cycle of the recycled aggregate.

[0008] In one embodiment, the first spraying component includes a first pipe, a first liquid storage container, a first air pump, and a plurality of first spray heads. The spray nozzles of the plurality of first spray heads are arranged facing the top surface of the first conveyor belt. The plurality of first spray heads are connected to the first air pump through the first pipe, and the first air pump is connected to the first liquid storage container through the first pipe. The second spraying component includes a second pipe, a second liquid storage container, a second air pump, and a plurality of second spray heads. The spray nozzles of the plurality of second spray heads are arranged facing the top surface of the first conveyor belt. The plurality of second spray heads are connected to the second air pump through the second pipe, and the second air pump is connected to the second liquid storage container through the second pipe.

[0009] Understandably, constructing a pneumatic spraying system allows the air pump to atomize the liquid before spraying it out, enabling the bacterial solution and calcium source reaction solution to evenly cover the surface of the recycled aggregate in a finer mist. This atomized spraying method increases the contact area between the bacterial solution and calcium source reaction solution and the recycled aggregate, improving adhesion efficiency and allowing the bacterial solution and calcium source reaction solution to more easily penetrate the tiny pores and cracks of the recycled aggregate.

[0010] In one embodiment, the spray assembly includes multiple sets of first spray elements and second spray elements.

[0011] Understandably, by setting up multiple sets of first and second spray components, multiple alternating sprays can be applied to the recycled aggregate. This allows for the gradual construction of a mineralized repair layer, enabling calcium carbonate crystals to be deposited more densely and thickly on the surface and in the cracks of the recycled aggregate.

[0012] In one embodiment, the spraying assembly further includes a spray liquid recovery unit and a third spraying unit. The spray liquid recovery unit is used to collect the spray liquid spilled on the first conveyor belt, and the third spraying unit is connected to the liquid recovery container of the spray liquid recovery unit. The third spraying unit is used to spray the recovered spray liquid onto the recycled aggregate disposed on the first conveyor belt.

[0013] Understandably, by setting up a spray liquid recovery unit to collect the spilled mixed liquid and then re-spraying it onto the recycled aggregate through a third spray unit, the spray liquid is recycled.

[0014] In one embodiment, the liquid recovery container is positioned below the first conveyor belt along the direction of gravity. The third spraying component includes a third air pump, a third pipe, and a plurality of third spray heads. The spray nozzles of the plurality of third spray heads are positioned facing the top surface of the first conveyor belt. One end of the third air pump is connected to the liquid recovery container through the third pipe, and the other end of the third air pump is connected to the plurality of third spray heads through the third pipe.

[0015] Understandably, by installing a third air pump, a third pipeline, and a third spray head, a pneumatic re-spraying system is constructed. This allows the recovered mixed liquid to be evenly sprayed onto the recycled aggregate in an atomized form, ensuring the utilization efficiency of the recovered mixed liquid and the spraying effect.

[0016] In one embodiment, the drying assembly includes a plurality of dryers suspended above a first conveyor belt, the dryers being used to dry the sprayed recycled aggregate.

[0017] Understandably, suspending the dryer above the conveyor belt allows for non-contact heating and drying of the recycled aggregate on the first conveyor belt. This avoids potential damage to the newly formed mineralized layer caused by mechanical contact, ensuring effective repair. Furthermore, setting up multiple dryers creates a continuous drying zone along the direction of travel of the first conveyor belt. By controlling the power and distance of each dryer, precise programmed control of the drying process can be achieved, ensuring rapid drying efficiency while preventing cracking of the recycled aggregate due to excessively high temperatures or rapid temperature rise.

[0018] In one embodiment, the first conveyor belt is an annular structure with an inlet and an outlet connected together.

[0019] Understandably, using a circular conveyor belt allows the inlet and outlet of the equipment to be located close to each other, optimizing the equipment's footprint. Simultaneously, the circular structure facilitates multiple cycles of mineralization processing. If the recycled aggregate, after one round of processing, does not meet the requirements upon reaching the outlet, it can re-enter the spraying and drying zone via the conveyor belt for further processing.

[0020] In one embodiment, the microbial mineralization recycled aggregate continuous production equipment further includes a transfer component, which is located downstream of the spraying component and the drying component in the direction of the first conveyor belt driving the recycled aggregate. The transfer component is used to transfer qualified recycled aggregate.

[0021] Understandably, by adding a transfer assembly at the end of the production line, the automatic transfer and collection of qualified products is achieved. After the recycled aggregate has completed all the spraying and drying processes, the transfer assembly can move it from the first conveyor belt to the designated location.

[0022] In one embodiment, the microbial mineralization recycled aggregate continuous production equipment further includes a screening component, which includes a screening plate and a collection box. The screening plate is disposed on the side of the transfer component away from the first conveyor belt. The screening plate is used to screen the recycled aggregate transferred by the transfer component. The collection box is disposed below the screening plate along the direction of gravity.

[0023] Understandably, the screening component is used to separate recycled aggregates that do not meet the preset particle size, and can screen out unqualified fine recycled aggregate particles into the collection box. This ensures that the recycled aggregates that finally meet the preset particle size requirements are collected.

[0024] In one embodiment, the microbial mineralization recycled aggregate continuous production equipment further includes an inclined second conveyor belt, which is disposed on the side of the screening plate away from the transfer component, and the higher end of the second conveyor belt along the direction of gravity is connected to the end of the screening component away from the transfer component.

[0025] Understandably, the inclined second conveyor belt facilitates the transport of screened recycled aggregate. Larger recycled aggregate particles that fail to pass through the screening plate apertures can slide off the second conveyor belt. This arrangement makes the entire post-processing flow smoother and more automated, improving the material flow path of the entire production system. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the microbial mineralization and recycling aggregate continuous production equipment provided in the embodiments of this application.

[0027] Figure 2 This mainly showcases the screening component in this embodiment.

[0028] Figure 3 This is a top view of the spray liquid recovery component of the microbial mineralization and regeneration aggregate continuous production equipment provided in this application embodiment.

[0029] Explanation of reference numerals in the attached drawings: 1. First conveyor belt; 2. Spray assembly; 21. First spray element; 211. First pipe; 212. First liquid storage container; 213. First air pump; 214. First spray head; 22. Second spray element; 221. Second pipe; 222. Second liquid storage container; 223. Second air pump; 224. Second spray head; 23. Spray liquid recovery assembly; 231. Liquid recovery container; 24. Third spray element; 241. Third air pump; 242. Third pipe; 243. Third spray head; 3. Drying assembly; 31. Dryer; 4. Transfer assembly; 5. Screening assembly; 51. Screening plate; 52. Collection box; 6. Second conveyor belt. Detailed Implementation

[0030] The following will be combined with the appendix Figures 1 to 3 The technical solutions in the embodiments of this application are described in further detail below. The described embodiments are only possible technical implementations of this application, but are not limited thereto. Those skilled in the art can combine the embodiments of this application to obtain other embodiments without creative effort, which are also within the protection scope of this application.

[0031] In one embodiment, the continuous production equipment for microbial mineralization recycled aggregate includes a first conveyor belt 1, a spraying assembly 2, and a drying assembly 3. The first conveyor belt 1 is used to transport the recycled aggregate to be sprayed. The spraying assembly 2 is suspended above the first conveyor belt 1 and includes a first spraying element 21 and a second spraying element 22. At least one first spraying element 21 is positioned upstream of the first conveyor belt 1 in the direction in which the recycled aggregate is driven. The first spraying element 21 sprays bacterial solution onto the recycled aggregate on the first conveyor belt 1, and the second spraying element 22 sprays calcium source reaction solution onto the recycled aggregate on the first conveyor belt 1. The drying assembly 3 is positioned downstream of the spraying assembly 2 in the direction in which the recycled aggregate is driven by the first conveyor belt 1, and is used to dry the sprayed recycled aggregate.

[0032] In this embodiment, reference Figure 1The recycled aggregate to be processed is placed upstream of the spray assembly 2, in the direction of transmission of the recycled aggregate driven by the first conveyor belt 1. The spray assembly 2 is suspended above the first conveyor belt 1, with the first spray element 21 and the second spray element 22 spaced apart. The bacterial solution in the first spray element 21 first sprays the recycled aggregate, and then the calcium source reaction solution in the second spray element 22 sprays the recycled aggregate. There is a certain time difference between the recycled aggregate sprayed with the bacterial solution and contact with the calcium source reaction solution, which is conducive to the full mixing of the bacterial solution and the recycled aggregate. This avoids the bacterial solution and the calcium source reaction solution from pre-mixing and reacting outside the surface of the recycled aggregate. It ensures that calcium carbonate crystals can be accurately generated and deposited on the surface and internal defects of the recycled aggregate, improving the effectiveness of mineralization repair and the stability of product quality. The drying assembly 3 is directly integrated downstream of the spray assembly 2, in the direction of transmission of the recycled aggregate driven by the first conveyor belt 1, so that the sprayed recycled aggregate immediately enters the drying stage, quickly removing excess moisture and promoting the crystallization and solidification of mineralized products. This layout not only avoids secondary pollution or performance changes that may occur in wet recycled aggregates during the stockpiling process, but also shortens the entire production cycle of recycled aggregates.

[0033] In one embodiment, the first conveyor belt 1 is an annular structure with an inlet and an outlet connected together.

[0034] In this embodiment, a first conveyor belt 1 is used, allowing the inlet and outlet of the equipment to be located in close proximity, thus optimizing the equipment's footprint. Simultaneously, the annular structure facilitates multiple cycles of mineralization processing. If the recycled aggregate, after one round of processing, does not meet the requirements upon reaching the outlet, it can re-enter the spraying and drying zone via the conveyor belt for further processing. The annular conveyor belt facilitates the production of recycled aggregates of different standards.

[0035] In one embodiment, the spray assembly 2 includes multiple sets of first spray elements 21 and second spray elements 22.

[0036] In this embodiment, multiple sets of first spray elements 21 and multiple sets of second spray elements 22 are suspended above the first conveyor belt 1, and are alternately arranged in the transmission direction of the first conveyor belt 1 driving the recycled aggregate. The multiple sets of first spray elements 21 are connected through a first pipe 211, and the multiple sets of second spray elements 22 are connected through a second pipe 221. By setting multiple sets of first spray elements 21 and second spray elements 22, multiple and alternating spraying of the recycled aggregate can be achieved. This allows for the gradual construction of a mineralized repair layer, enabling calcium carbonate crystals to be deposited more densely and thickly on the surface and in the cracks of the recycled aggregate. The multiple and alternating spraying method achieves superior repair effects and significantly improves the strength and impermeability of the recycled aggregate.

[0037] In one embodiment, the first spray component 21 includes a first pipe 211, a first liquid storage container 212, a first air pump 213, and a plurality of first spray heads 214. The spray nozzles of the plurality of first spray heads 214 are arranged facing the top surface of the first conveyor belt 1. The plurality of first spray heads 214 are connected to the first air pump 213 through the first pipe 211, and the first air pump 213 is connected to the first liquid storage container 212 through the first pipe 211. The second spray component 22 includes a second pipe 221, a second liquid storage container 222, a second air pump 223, and a plurality of second spray heads 224. The spray nozzles of the plurality of second spray heads 224 are arranged facing the top surface of the first conveyor belt 1. The plurality of second spray heads 224 are connected to the second air pump 223 through the second pipe 221, and the second air pump 223 is connected to the second liquid storage container 222 through the second pipe 221.

[0038] In this embodiment, a pneumatic spraying system is constructed, which allows the air pressure generated by the air pump to atomize the liquid before spraying it out. This enables the bacterial solution and calcium source reaction solution to uniformly cover the surface of the recycled aggregate in a finer mist. The atomized spraying method increases the contact area between the bacterial solution and calcium source reaction solution and the recycled aggregate, improving adhesion efficiency and allowing the bacterial solution and calcium source reaction solution to more easily penetrate into the tiny pores and cracks of the recycled aggregate. This results in a more comprehensive and uniform mineralization repair effect.

[0039] In one embodiment, the spray assembly 2 further includes a spray liquid recovery component 23 and a third spray component 24. The spray liquid recovery component 23 is used to collect the spray liquid spilled on the first conveyor belt 1. The third spray component 24 is connected to the liquid recovery container 231 of the spray liquid recovery component 23 and is used to spray the recovered spray liquid onto the recycled aggregate disposed on the first conveyor belt 1.

[0040] In this embodiment, refer to Figure 1 and Figure 3 By setting up a spray liquid recovery unit 23 to collect the spilled mixed liquid, and then using a third spray unit 24 to re-spray it onto the recycled aggregate, the spray liquid is recycled.

[0041] In one embodiment, the liquid recovery container 231 is positioned below the first conveyor belt 1 along the direction of gravity. The third spraying component 24 includes a third air pump 241, a third pipe 242, and a plurality of third spray heads 243. The spray nozzles of the plurality of third spray heads 243 are arranged facing the top surface of the first conveyor belt 1. One end of the third air pump 241 is connected to the liquid recovery container 231 through the third pipe 242, and the other end of the third air pump 241 is connected to the plurality of third spray heads 243 through the third pipe 242.

[0042] In this embodiment, multiple third spray heads 243 are detachably connected to a third pipe 242, and the third pipe 242 is detachably connected to a third air pump 241. When precipitates generated from the bacterial solution and calcium source reaction solution clog the third pipe or multiple third spray heads 243, the detachable connection facilitates replacement of the third pipe and multiple third spray heads 243. Multiple third spray heads 243 are all suspended above the first conveyor belt 1, and each third spray head 243 is positioned downstream of each second spray head 224 in the direction the first conveyor belt 1 drives the recycled aggregate. Simultaneously, by setting up the third air pump 241, the third pipe 242, and the third spray heads 243, a pneumatic re-spraying system is constructed. This allows the recovered mixed liquid to be evenly sprayed onto the recycled aggregate in an atomized form, ensuring the utilization efficiency of the recovered mixed liquid and the spraying effect.

[0043] In one embodiment, the drying assembly 3 includes a plurality of dryers 31 suspended above the first conveyor belt 1, and the plurality of dryers 31 are used to dry the sprayed recycled aggregate.

[0044] In this embodiment, the dryer 31 is suspended above the conveyor belt and positioned downstream of the third spray head 243 in the direction of transmission of the recycled aggregate by the first conveyor belt 1. The dryer 31 can directly perform non-contact heating and drying on the recycled aggregate on the first conveyor belt 1. This avoids potential damage to the newly formed mineralized layer caused by mechanical contact, ensuring the repair effect. Furthermore, by setting up several dryers 31, a continuous drying zone can be formed in the traveling direction of the first conveyor belt 1. By controlling the power and distance of each dryer 31, precise programmed control of the drying process can be achieved, thereby ensuring rapid drying efficiency while preventing cracking of the recycled aggregate due to excessively high temperature or rapid heating.

[0045] In one embodiment, the microbial mineralization recycled aggregate continuous production equipment further includes a transfer component 4, which is located downstream of the spray component 2 and the drying component 3 in the direction of the first conveyor belt 1 driving the recycled aggregate. The transfer component 4 is used to transfer qualified recycled aggregate.

[0046] In this embodiment, the transfer component 4 is positioned downstream of the dryer 31 in the direction of transmission of the recycled aggregate driven by the first conveyor belt 1. Workers inspect the dried recycled aggregate to determine if it meets preset quality requirements. If the recycled aggregate meets the preset quality requirements, workers transfer it into the transfer component 4. The transfer component 4 is used to transfer qualified recycled aggregate. After the recycled aggregate completes all spraying and drying processes, the transfer component 4 can transfer it from the first conveyor belt 1 to a designated location. This arrangement further improves the automation of the entire production line. If the recycled aggregate does not meet the preset quality requirements, workers will not transfer the substandard recycled aggregate into the transfer component 4; the recycled aggregate continues to circulate on the first conveyor belt 1.

[0047] In one embodiment, the microbial mineralization recycled aggregate continuous production equipment further includes a screening component 5, which includes a screening plate 51 and a collection box 52. The screening plate 51 is disposed on the side of the transfer component 4 away from the first conveyor belt 1. The screening plate 51 is used to screen the recycled aggregate transferred by the transfer component 4. The collection box 52 is disposed below the screening plate 51 along the direction of gravity.

[0048] In this embodiment, refer to Figure 2 The screening component 5 is located on the side of the transfer component 4 away from the first conveyor belt 1. The screening component 5 is used to separate recycled aggregates that do not meet the preset particle size, and can screen unqualified fine recycled aggregate particles into the collection box 52. This ensures that recycled aggregates that meet the preset particle size requirements are finally collected.

[0049] In one embodiment, the microbial mineralized recycled aggregate continuous production equipment further includes an inclined second conveyor belt 6, which is disposed on the side of the screening plate 51 away from the transfer component 4, and the higher end of the second conveyor belt 6 along the gravity direction is connected to the end of the screening component 5 away from the transfer component 4.

[0050] In this embodiment, refer to Figure 1 and Figure 2 The second conveyor belt 6 is located at the end of the screening component 5 away from the transfer component 4. The inclined second conveyor belt 6 facilitates the transport of screened recycled aggregate. Recycled aggregate that meets the preset particle size can slide smoothly down the second conveyor belt 6. This makes the entire post-processing process smoother and more automated, and improves the material flow path of the entire production system.

[0051] The implementation principle of this embodiment is as follows: The continuous production equipment for microbial mineralization recycled aggregate achieves continuous conveying of recycled aggregate through a first conveyor belt 1. A spraying component 2 sequentially sprays bacterial solution, calcium source reaction solution, and a mixed solution, causing the recycled aggregate to undergo a microbial mineralization reaction. A drying component 3 accelerates the reaction process and removes moisture. A transfer component 4 transfers qualified recycled aggregate, a screening component 5 screens the recycled aggregate, and a second conveyor belt 6 transports the screened recycled aggregate to a collection point. Compared with the prior art, this continuous production equipment for microbial mineralization recycled aggregate has the advantages of a short processing cycle and low reagent consumption.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A continuous production equipment for microbial mineralization and recycled aggregate, characterized in that, include: The first conveyor belt (1) is used to transport the recycled aggregate to be sprayed; A spray assembly (2) is suspended above the first conveyor belt (1). The spray assembly (2) includes a first spray element (21) and a second spray element (22). At least one first spray element (21) is positioned upstream of the first conveyor belt (1) in the direction of driving the recycled aggregate. The first spray element (21) is used to spray bacterial liquid onto the recycled aggregate on the first conveyor belt (1), and the second spray element (22) is used to spray calcium source reaction liquid onto the recycled aggregate on the first conveyor belt (1). The drying component (3) is located downstream of the spraying component (2) in the direction of the first conveyor belt (1) driving the recycled aggregate. The drying component (3) is used to dry the recycled aggregate after spraying.

2. The continuous production equipment for microbial mineralization and regenerated aggregates according to claim 1, characterized in that: The first spray component (21) includes a first pipe (211), a first liquid storage container (212), a first air pump (213), and a plurality of first spray heads (214). The spray nozzles of the plurality of first spray heads (214) are arranged facing the top surface of the first conveyor belt (1). The plurality of first spray heads (214) are connected to the first air pump (213) through the first pipe (211). The first air pump (213) is connected to the first liquid storage container (212) through the first pipe (211). The second spray component (22) includes a second pipe (221), a second liquid storage container (222), a second air pump (223), and a plurality of second spray heads (224). The spray nozzles of the plurality of second spray heads (224) are arranged facing the top surface of the first conveyor belt (1). The plurality of second spray heads (224) are connected to the second air pump (223) through the second pipe (221). The second air pump (223) is connected to the second liquid storage container (222) through the second pipe (221).

3. The continuous production equipment for microbial mineralization and regenerated aggregates according to claim 1, characterized in that, The spray assembly (2) includes multiple sets of first spray elements (21) and second spray elements (22).

4. The continuous production equipment for microbial mineralization and regenerated aggregate according to claim 1, characterized in that, The spray assembly (2) further includes a spray liquid recovery unit (23) and a third spray unit (24). The spray liquid recovery unit (23) is used to collect the spray liquid spilled on the first conveyor belt (1). The third spray unit (24) is connected to the liquid recovery container (231) of the spray liquid recovery unit (23). The third spray unit (24) is used to spray the recovered spray liquid onto the recycled aggregate provided on the first conveyor belt (1).

5. The continuous production equipment for microbial mineralization and regenerated aggregate according to claim 4, characterized in that, The liquid recovery container (231) is positioned below the first conveyor belt (1) along the direction of gravity; the third spray component (24) includes a third air pump (241), a third pipe (242) and a plurality of third spray heads (243), the spray nozzles of the plurality of third spray heads (243) are arranged facing the top surface of the first conveyor belt (1), one end of the third air pump (241) is connected to the liquid recovery container (231) through the third pipe (242), and the other end of the third air pump (241) is connected to the plurality of third spray heads (243) through the third pipe (242).

6. The continuous production equipment for microbial mineralization and regenerated aggregate according to claim 1, characterized in that, The drying assembly (3) includes a plurality of dryers (31), which are suspended above the first conveyor belt (1) and are used to dry the recycled aggregate after spraying.

7. The continuous production equipment for microbial mineralization and recycled aggregates according to claim 1, characterized in that, The first conveyor belt (1) is a ring structure with the inlet and outlet connected.

8. The continuous production equipment for microbial mineralization and recycled aggregates according to claim 1, characterized in that, It also includes a transfer component (4), which is located downstream of the spray component (2) and the drying component (3) in the direction of the first conveyor belt (1) driving the recycled aggregate. The transfer component (4) is used to transfer qualified recycled aggregate.

9. The continuous production equipment for microbial mineralization and recycled aggregates according to claim 8, characterized in that, It also includes a screening component (5), which includes a screening plate (51) and a collection box (52). The screening plate (51) is disposed on the side of the transfer component (4) away from the first conveyor belt (1). The screening plate (51) is used to screen the recycled aggregate transferred by the transfer component (4). The collection box (52) is disposed below the screening plate (51) along the direction of gravity.

10. The continuous production equipment for microbial mineralization and recycled aggregates according to claim 9, characterized in that, It also includes a second conveyor belt (6) that is inclined and is located on the side of the screening plate (51) away from the transfer component (4). The higher end of the second conveyor belt (6) along the direction of gravity is connected to the end of the screening component (5) away from the transfer component (4).

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