A recycled aggregate pre-humidity conditioning system and method

Abstract

This invention discloses a pre-humidification system and method for recycled aggregates. The system includes a supply line as the main body, which includes a feeding track. Around the feeding track, counterclockwise, are arranged a drying and weighing section, a soaking and air-drying section, a batch spraying section, a centrifugal dewatering section, and a storage and transfer section. This invention can classify and supply two types of aggregates: one is compliant aggregates that can be directly pre-humidified, and the other is non-compliant aggregates that require crushing. The aggregates supplied by the supply line are delivered to a sample transfer unit or a batch transfer unit on the feeding track, and then to the drying and weighing section, the soaking and air-drying section, the centrifugal dewatering section, and the batch spraying section for further processing. Finally, pre-humidified aggregates that meet the required humidity standards are stored in an aggregate curing box for preservation and are ready for use. This achieves precise control of the pre-humidification of recycled aggregates, significantly saving manpower and resources consumed in the pre-humidification treatment and control of recycled aggregates.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, specifically to a pre-humidity conditioning system for recycled aggregates, and also to a method for pre-humidity conditioning of recycled aggregates. Background Technology

[0002] Recycled aggregates possess external pores, interconnected internal and external pores, and surface micropores, creating capillary tension and localized weak hydraulic gradients on their surface. During the pre-wetting stage, because the recycled aggregates are initially dry, they are hygroscopic when exposed to water. If the pre-humidity of the recycled aggregates is too low, they will absorb moisture during concrete preparation, thus affecting the actual effectiveness of the water-cement ratio in recycled concrete. Existing methods for adjusting the pre-humidity of recycled aggregates mainly involve natural wetting, which involves stockpiling the recycled aggregates in open areas or on open ground and allowing them to be wetted through natural rainfall or spraying. This effectively increases the humidity of the recycled aggregates to meet the requirements for concrete construction. However, this method can be time-consuming and cannot precisely control the humidity of the aggregates. Therefore, a pre-humidity adjustment system and method for recycled aggregates are needed. Summary of the Invention

[0003] The purpose of this invention is to provide a pre-humidification system for recycled aggregates. The system first classifies and supplies two types of aggregates via a feed line: compliant aggregates that can be directly pre-humidified, and non-compliant aggregates that require crushing. The aggregates supplied by the feed line are then transferred to a sample transfer unit or batch transfer unit on a feeding track, and subsequently to a drying and weighing section, a soaking and air-drying section, a centrifugal dehydration section, and a batch spraying section for further processing. Finally, the pre-humidified aggregates that meet the required standards are stored in an aggregate curing box for preservation and are ready for use. This system achieves precise control of the pre-humidification of recycled aggregates, significantly saving manpower and resources required for pre-humidification control, realizing fully mechanized processing, and improving efficiency and finished product quality.

[0004] Another objective of this invention is to provide a method for pre-humidity adjustment of recycled aggregates, which can be directly applied to existing recycled aggregate pre-humidity adjustment construction. First, a sample of recycled aggregate is stored in a sample transfer unit and transported to a drying and weighing section. The wet weight is first measured using a digital display electronic scale, and then the dry weight is measured again after drying in a drying oven to determine the aggregate's moisture content. Simultaneously, a similar sample transfer unit can be set up to first measure the dry weight using a digital display electronic scale, and then transport the sample to a soaking and air-drying section. The sample is first soaked in a sample soaking unit to absorb water, then sent to a sample air-drying unit to dry the surface water, and finally the sample is dried again using a digital display electronic scale. The wet weight is measured to determine the aggregate's water absorption capacity. This is a sample pre-humidity monitoring method. For large batches of aggregate in the same batch, they can be dehydrated in large quantities through centrifugal dehydration and sprayed in large quantities through batch spraying. The specific degree of spraying dehydration is adjusted according to the sample data. Finally, a large amount of recycled aggregate that meets the standard pre-humidity is obtained and stored in the aggregate curing box for curing. This method can monitor the pre-humidity of batch aggregates through sample control, and then adjust the degree of pre-humidity spraying dehydration of each batch of aggregates accordingly, accurately control the aggregate humidity, significantly improve aggregate processing efficiency, and reduce processing costs and time.

[0005] To further achieve the above objectives, the present invention adopts the following technical solution: a pre-humidity conditioning system for recycled aggregate, comprising a supply line as the main body, the supply line comprising a feeding track, and a drying and weighing section, a soaking and air-drying section, a batch spraying section, a centrifugal dewatering section, and a storage and transfer section arranged counterclockwise around the feeding track.

[0006] Optionally, the supply line includes a ground as an integral base, on which a crusher mounting base, a drying box mounting base, and a digital display electronic scale mounting base are installed. Two supply lines are also provided on the ground, one of which includes a crusher, a mechanical electric screen, and a first conveyor belt connected from front to back, and the other includes a second conveyor belt. The output ends of both supply lines are located near a feeding track installed in the middle of the ground. The feeding track includes a central rectangular track as its main body. The central rectangular track is arranged counter-clockwise with a sample transfer unit storage area, a drying and weighing interface, a soaking and air-drying interface, an aggregate curing interface, a batch spraying interface, a centrifugal dewatering interface, and a batch transfer and storage area. The aggregate curing interface faces inwards towards the central rectangular track, while the others face outwards.

[0007] Furthermore, the sample transfer unit storage area and the batch transfer storage area are two rectangular extended tracks between two supply lines, which are respectively used to store the sample transfer unit and the batch transfer unit of the storage and transfer section; a drying box mounting base and a digital display electronic scale mounting base are provided near the drying and weighing interface for installing the drying and weighing section.

[0008] Optionally, the drying and weighing section includes a drying chamber mounted on a drying chamber mounting base and a digital display electronic scale mounted on a digital display electronic scale mounting base.

[0009] Optionally, the soaking and drying section includes a sample soaking unit and a sample drying unit arranged as the main body on both sides of the soaking and drying interface; the sample soaking unit includes a first lower working box installed on the ground, the first lower working box has an inward rectangular slot in the middle, and a ring-shaped slot is provided around the rectangular slot; four support rods are provided around the first lower working box, the top of the support rods are connected to a first electric push rod mounting seat, the top of the first electric push rod mounting seat is equipped with a first electric push rod with the output end pointing downward, the output end of the first electric push rod passes through the first electric push rod mounting seat and is connected to a first upper working box, the first upper working box has the same shape and size as the first lower working box, but the opposite direction and the corresponding position, and it is also provided with a ring-shaped slot for inserting a plate;

[0010] The sample drying unit has a similar general structure to the sample soaking unit, except that its first lower working box and first upper working box are replaced with a second lower working box and a second upper working box. A lower ventilation port is opened at the bottom of the second lower working box, and an upper ventilation port is opened on the second upper working box. At the same time, a sample drying fan with a downward airflow direction is installed inside the second upper working box.

[0011] Furthermore, the sample soaking unit has a first pressurizing pump, a first water storage tank, a first water pump, and a first wastewater tank located near the first lower working chamber; the first pressurizing pump is connected to the first lower working chamber and the first water storage tank respectively via water pipes, and the first water pump is connected to the first lower working chamber and the first wastewater tank respectively via water pipes.

[0012] Optionally, the centrifugal dehydration section includes several centrifugal dehydrators and air-drying dehydration units distributed on both sides of the centrifugal dehydration interface track; the air-drying dehydration unit has a general structure similar to the sample air-drying unit, except that its second lower working box and second upper working box are replaced with a third lower working box and a third upper working box, and the annular slots provided on the third lower working box and the third upper working box are removed, and an air-drying semi-circular groove is provided at the middle position on the corresponding two sides, with a diameter matching the front bearing and the rear bearing; similarly, the third lower working box and the third upper working box are provided with ventilation openings, and the third upper working box is provided with an air-drying fan with a downward airflow direction.

[0013] Optionally, the batch spraying section includes several batch spraying units distributed on both sides of the batch spraying interface. The general structure of the batch spraying unit is similar to that of the air-drying and dehydration unit, except that its third lower working box and third upper working box are replaced by a fourth lower working box and a fourth upper working box. The fourth lower working box and the fourth upper working box are provided with a spraying semicircular trough with the same structure as the air-drying semicircular trough. An electric valve is provided at the bottom of the fourth lower working box, and a water level sensor is provided inside. A spraying pipe is provided on the fourth upper working box, and an atomizing nozzle matrix is ​​provided inside. The spraying pipe is connected to the atomizing nozzle matrix. The batch spraying section also includes a second water storage tank, a second wastewater tank, a second pressurizing pump, and a second pump installed on the ground. The second pressurizing pump is connected to the second water storage tank and the spraying pipe through a pipe, and the second pump is connected to the second wastewater tank and the electric valve through a pipe.

[0014] Optionally, the storage and transfer section includes several sample transfer units disposed on the sample transfer unit storage area, and several batch transfer units disposed on the batch transfer unit storage area; the sample transfer units are mounted on the feeding track via electric trolleys, the upper end of the electric trolleys is connected to a first rotary motor mounting base, a first rotary motor is mounted on the first rotary motor mounting base, the output end of the first rotary motor is connected to a second electric push rod mounting base, four upward-facing second electric push rods are mounted at the four corners of the second electric push rod mounting base, wherein two adjacent second electric push rods form a group, and there are two groups in total. The output ends of these two groups of second electric push rods are respectively connected to a third electric push rod mounting base and a fourth electric push rod mounting base; a third electric push rod with its output end horizontally inward is mounted in the middle of the third electric push rod mounting base, and two fourth electric push rods with their output ends longitudinally inward are mounted at both ends of the fourth electric push rod mounting base; a second rotary motor is connected to the output end of the third electric push rod, a first electric gripper is connected to the output end of the second rotary motor, and a second electric gripper is connected to the output end of the fourth electric push rod; a second electric gripper is connected to the output end of the fourth electric push rod.

[0015] The sample transfer unit also includes a rectangular storage tank with a rectangular slot in the middle. The bottom of the rectangular slot has a number of fine mesh holes. The outer perimeter of the rectangular slot has protruding inserts on both the top and bottom of the baffle. The size and shape of the inserts match the annular slot. At the same time, three clamping seats are provided on the outer side of the outer baffle of the rectangular storage tank, and their orientations match the two second electric grippers and the one first electric gripper, respectively.

[0016] The bulk transfer unit is generally similar in structure to the sample transfer unit, except that its fourth electric push rod mounting base is replaced with a roller storage tank support plate, and the third electric push rod is replaced with a fifth electric push rod. The roller storage tank support plate has an arc-shaped plate structure in the middle, which matches the size and shape of the roller storage tank. The output end of the fifth electric push rod is connected to a third rotary motor. A front bearing is installed on the output shaft of the third rotary motor, and the end of the output shaft of the third rotary motor is connected to the roller storage tank. A coaxial support rod is provided at the other end of the roller storage tank, and a rear bearing is installed on the support rod. The roller storage tank is a cylindrical structure with a rectangular opening.

[0017] Accordingly, the present invention also claims a method for pre-humidification of recycled aggregate, comprising:

[0018] Sorted feeding: compliant batches of aggregate are placed directly onto the second conveyor belt to be conveyed to the feeding track for the next process. Non-compliant batches of aggregate are put into the crusher for crushing. After crushing, they are screened by a mechanical electric screen. The aggregate with the compliant particle size is finally sent to the first conveyor belt to be conveyed to the feeding track for the next process.

[0019] Material receiving and transfer: The sample transfer unit is pre-set in the sample transfer unit storage area, and the batch transfer unit is pre-set in the batch transfer unit storage area. It is determined whether the current process is for sample retrieval or batch control retrieval based on the actual situation. If it is for sample retrieval, the sample transfer unit is controlled to move to the output end of the two supply lines and receive the material through the rectangular storage tank. If it is for batch retrieval, the batch transfer unit is controlled to move to the output end of the two supply lines and receive the material through the roller storage tank. After the material receiving is completed, the subsequent process can be carried out.

[0020] Sample moisture detection: When the sample transfer unit moves the rectangular storage tank containing aggregate to the drying and weighing section, the electric trolley is controlled to move the sample transfer unit to the drying and weighing interface. The first rotary motor is controlled to rotate the second electric push rod mounting seat so that the rectangular storage tank faces the digital display electronic scale. Then, the second electric gripper of the clamping seat is released, and the third electric push rod is pushed out so that the rectangular storage tank moves above the electronic scale. The second electric push rod is then adjusted so that the third and fourth electric push rod mounting seats are lowered to a suitable height. Finally, the first electric gripper is released, and the rectangular storage tank falls onto the digital display electronic scale to weigh the wet weight. The sample is retrieved in the reverse manner and the overall orientation is adjusted to face the drying box. The construction personnel open the drying box and, in the same manner, use the push rods and grippers to place the rectangular storage tank into the drying box. The drying time is adjusted according to the actual situation. After drying, the sample is retrieved again and placed on the digital display electronic scale to measure the dry weight. Finally, the wet and dry weight data are combined to obtain the sample aggregate moisture content.

[0021] Sample water absorption capacity test: First, in the same manner as the sample humidity test procedure described above, the sample transfer unit is sent to the digital display electronic scale for dry weight measurement. When the sample transfer unit, carrying the rectangular storage tank containing aggregate, arrives at the soaking and drying section, the electric trolley is controlled to move the sample transfer unit to the soaking and drying interface. Then, in the same manner as the sample humidity test procedure described above, the rectangular storage tank is oriented towards the sample soaking unit and pushed above the first lower working box, aligning its insert plate with the annular slot on the first lower working box. The second electric push rod is lowered so that the lower insert plate is inserted into the first lower working box. At this time, the first electric gripper is released and the third electric push rod is moved back. The first upper working box is lowered by the first electric push rod until the annular slot on the upper working box is inserted by the upper insert plate. At this time, the first... The upper working box, rectangular storage tank, and first lower working box are connected from top to bottom to form a sealed whole. Water can be injected into this whole from bottom to top from the first water storage tank by the first pressurizing pump until the water surface submerges the rectangular storage tank and the aggregate therein. After a period of time, the aggregate has completely absorbed water. Then, the wastewater is pumped to the first wastewater tank by the first water pump. After evacuation, the first electric push rod is raised, and the sample transfer unit retrieves the rectangular storage tank and places it into the sample drying unit in the same way. The second upper working box is lowered so that it forms a whole again. The sample drying fan is started to remove the free water on the surface of the aggregate. After the free water is removed, the sample transfer unit is moved to the digital display electronic scale for wet weight measurement. The water absorption capacity data of the sample aggregate is obtained by comparing the dry weight and the wet weight after water absorption.

[0022] Batch spraying: Move the batch transfer unit to the batch spraying interface track, and move the drum storage tank to the batch spraying unit in the same way as the batch aggregate centrifugal dewatering process described below. Lower the fourth upper working box to form a closed whole. Turn on the second pressure pump, and the atomizing nozzle matrix in the fourth upper working box sprays water. Simultaneously start the third rotary motor to make the drum storage tank rotate, realizing the rotation and humidification of the internal aggregate. After humidification is completed, retract the drum storage tank to prepare for the centrifugal dewatering process. When the water level inside the fourth lower working box reaches the height of the water level sensor, control the electric valve to open, and the second water pump starts to work and pumps all the wastewater into the second wastewater tank for storage.

[0023] Centrifugal dewatering: First, move the batch transfer unit to the centrifugal dewatering interface track and adjust its direction so that the drum storage tank faces the air-drying dewatering unit. Push out the third rotary motor and its upper drum storage tank through the fifth electric push rod until the front and rear bearings move above the semi-circular groove of the third lower working box. Lower the second electric push rod of the batch transfer unit so that the bearings fall onto the semi-circular groove. At this time, lower the third upper working box so that the semi-circular grooves of the two working boxes engage with the bearings. Start the air-drying fan to air-dry the aggregate in the drum storage tank. Simultaneously control the third rotary motor to rotate repeatedly. After the free water on the surface of the aggregate is removed after air-drying, the drum storage tank can be retracted and moved above the feed inlet. Control the third rotary motor to rotate the drum storage tank so that its rectangular opening faces downward, thus allowing the aggregate to fall into the centrifugal dewatering machine. Start the centrifugal dewatering machine to remove the internal moisture of the aggregate and reduce the humidity. Finally, move the drum storage tank to the discharge port to collect the dewatered aggregate, completing the centrifugal dewatering process. Afterward, the aggregate can be transferred to the aggregate curing box for storage.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. This invention, by setting up two supply lines in conjunction with a feeding track, can simultaneously meet the pre-humidity control requirements of various recycled aggregates. Aggregates with compliant particle size that can be directly used are fed to a supply line consisting of a second conveyor belt for processing, while aggregates with non-compliant particle size are fed to a supply line consisting of a crusher, a mechanical electric screen, and a first conveyor belt with particle size crushing and screening functions for processing, which greatly improves the adaptability of the entire pre-humidity control system.

[0026] 2. The present invention has a sample soaking unit and a sample drying unit that can work in conjunction with the sample transfer unit. After the rectangular storage tank is inserted, the upper and lower working boxes and the storage tank can form a tight whole, so that the sample soaking process can be carried out in a certain degree of sealing, so that the sample soaking can absorb water more fully. At the same time, the drying process can be carried out in a targeted manner, saving energy and improving drying efficiency, so that the free water on the surface of the aggregate can be removed quickly, which is conducive to the accuracy of subsequent weighing.

[0027] 3. This invention uses several centrifugal dewatering machines and air-drying dewatering units set on both sides of the centrifugal dewatering interface track to remove internal and surface moisture from aggregates, reducing aggregate humidity. At the same time, the air-drying semi-circular groove set on the working box of the air-drying dewatering unit can cooperate with the bearing of the batch transfer unit, so that the aggregates can be semi-sealed and rolled in the drum storage tank to a certain extent, which greatly improves the air-drying efficiency. In addition, since a large number of identical air-drying dewatering units are set, the air-drying time of each unit can be adjusted according to the actual situation, thereby improving the efficiency and accuracy of aggregate pre-humidity control.

[0028] 4. By setting up sample soaking unit, sample air drying unit, air drying and dehydration unit and batch spraying unit with similar but not completely identical structures, the present invention can greatly save the cost of mold replacement during manufacturing. At the same time, because of their similar but different structures, they can be used in conjunction with sample transfer unit and batch transfer unit to achieve the same steps but different functions, which greatly improves the working efficiency of the entire system. The closed spraying in the batch spraying unit can reduce water waste and achieve precise humidification.

[0029] 5. The sample transfer unit and batch transfer unit designed in this invention can respectively handle the small amount of sample aggregate taking, monitoring and control, and the large amount of aggregate spraying, air drying and dehydration, which greatly improves the efficiency of aggregate transfer and pre-humidity monitoring and control. At the same time, the size of the batch transfer unit, air drying and dehydration unit and batch spraying unit can be adjusted according to actual needs, so as to match the needs of a larger amount of concrete control. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall structure of the supply line portion of the present invention;

[0033] Figure 3 This is a schematic diagram of the overall structure of the drying and weighing part of the present invention;

[0034] Figure 4 This is a schematic diagram of the overall structure of the soaking and air-drying part of the present invention;

[0035] Figure 5 This is a schematic diagram of the overall structure of the sample soaking unit and the sample drying unit of the present invention;

[0036] Figure 6 This is a schematic diagram of the overall structure of the centrifugal dehydration section of the present invention;

[0037] Figure 7 This is a schematic diagram of the overall structure of the batch spraying section of the present invention;

[0038] Figure 8 This is a schematic diagram of the overall structure of the storage and transfer section of the present invention;

[0039] Figure 9 This is a schematic diagram of the overall structure of the sample transfer unit of the present invention;

[0040] Figure 10 This is a schematic diagram of the overall structure of the batch transfer unit of the present invention.

[0041] Explanation of reference numerals in the attached figures :

[0042] 1000 - Supply Line Section:

[0043] 1001 - Ground; 1002a - Crusher mounting base; 1002b - Crusher; 1003 - Mechanical / electric screen; 1004 - First conveyor belt; 1005 - Second conveyor belt; 1006 - Feeding track; 1006a - Sample transfer unit storage area; 1006b - Batch transfer storage area; 1006c - Drying and weighing interface; 1006d - Immersion and air drying interface; 1006e - Centrifugal dehydration interface; 1006f - Batch spraying interface; 1006g - Aggregate curing interface; 1007a - Drying box mounting base; 1007b - Digital display electronic scale mounting base;

[0044] 2000 - Drying and Weighing Section:

[0045] 2001 - Drying oven; 2002 - Digital display electronic scale;

[0046] 3000 - Soaked and air-dried portion:

[0047] 3001 - First booster pump; 3002 - First water storage tank; 3003 - First pump; 3004 - First wastewater tank;

[0048] 3100 - Sample immersion unit; 3101a - First lower working chamber; 3101b - First upper working chamber; 3102 - Support rod; 3103 - First electric push rod mounting base; 3104 - First electric push rod;

[0049] 3200 - Sample drying unit; 3201a - Second lower working chamber; 3201b - Second upper working chamber; 3202 - Sample drying fan; 3203a - Lower vent; 3203b - Upper vent;

[0050] 4000 - Centrifugal dehydration section:

[0051] 4001 - Centrifugal dewatering machine; 4001a - Feed inlet; 4001b - Discharge outlet;

[0052] 4100 - Air drying and dehydration unit; 4101a - Third lower working box; 4101b - Third upper working box; 4102 - Air drying semi-circular trough; 4103 - Ventilation opening;

[0053] 5000-Batch Spraying Section:

[0054] 5001a - Second water storage tank; 5001b - Second wastewater tank; 5002a - Second booster pump; 5002b - Second water pump;

[0055] 5100 - Batch spraying unit; 5101a - Fourth lower working box; 5101b - Fourth upper working box; 5102 - Spraying semi-circular trough; 5103 - Electric valve; 5104 - Water level sensor; 5105 - Spraying pipe;

[0056] 6000 - Storage and Transfer Section:

[0057] 6100 - Sample transfer unit; 6101 - First rotary motor mounting base; 6102 - First rotary motor; 6103 - Second electric push rod mounting base; 6104 - Second electric push rod; 6105 - Third electric push rod mounting base; 6106 - Fourth electric push rod mounting base; 6107a - Third electric push rod; 6107b - Fourth electric push rod; 6108 - Second rotary motor; 6109a - First electric gripper; 6109b - Second electric gripper; 6110 - Rectangular storage slot; 6110a - Insert plate; 6110c - Fine mesh; 6110b - Clamping base;

[0058] 6200 - Batch transfer unit; 6201 - Fifth electric push rod; 6202 - Drum storage tank support plate; 6203 - Third rotary motor; 6204a - Front bearing; 6204b - Rear bearing; 6205 - Drum storage tank; 6205a - Rectangular opening;

[0059] 7000-Aggregate Curing Box. Detailed Implementation

[0060] To facilitate understanding and implementation of the present invention by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0061] A pre-humidification system for recycled aggregates, consisting of Figure 1 , Figure 2 As shown, it includes a main feed line section 1000, and a drying and weighing section 2000, a soaking and air-drying section 3000, a batch spraying section 5000, a centrifugal dewatering section 4000, and a storage and transfer section 6000 arranged counterclockwise around its feed track 1006. It also includes an aggregate curing box 7000 installed inside the feed track 1006.

[0062] Depend on Figure 2As shown, the supply line section 1000 includes a ground 1001 serving as an integral base. A crusher mounting base 1002a, a drying box mounting base 1007a, and a digital display electronic scale mounting base 1007b are mounted on the ground 1001. Two supply lines are also mounted on the ground 1001. One line consists of a crusher 1002b, a mechanical electric screen 1003, and a first conveyor belt 1004 connected from front to back. The other line consists of a second conveyor belt 1005. The output ends of both supply lines are located near a feeding track 1006 installed in the middle of the ground 1001. The feeding track 1006 includes a central rectangular track as its main body. The rectangular track, arranged counter-clockwise, includes a sample transfer unit storage area 1006a, a drying and weighing interface 1006c, a soaking and air-drying interface 1006d, an aggregate curing interface 1006g, a batch spraying interface 1006f, a centrifugal dehydration interface 1006e, and a batch transfer storage area 1006b. The aggregate curing interface 1006g faces inwards from the central rectangular track, while the others face outwards. The sample transfer unit storage area 1006a and the batch transfer storage area 1006b are two rectangular extension tracks between two supply lines, respectively used to store and transfer components 6000. The sample transfer unit 6100 and the batch transfer unit 6200 are included. A drying chamber mounting base 1007a and a digital display electronic scale mounting base 1007b are located near the drying weighing interface 1006c for mounting the drying weighing section 2000. The crusher 1002b, the mechanical and electric screen 1003, the first conveyor belt 1004, and the second conveyor belt 1005 are all general-purpose components. The crusher 1002b is used to crush recycled aggregates with non-compliant particle sizes, the mechanical and electric screen 1003 is used to screen aggregate particle sizes, and the first conveyor belt 1004 and the second conveyor belt 1005 are responsible for conveying aggregates with compliant particle sizes to the vicinity of the feeding track 1006. The material is handed over to the storage and transfer section 6000 for processing. The purpose of this structure is to divide the recycled aggregate into two categories according to the actual situation during the feeding process: one is aggregate with compliant particle size that can be used directly, and the other is aggregate with non-compliant particle size that needs to be crushed and screened. The compliant batch of aggregate is directly placed on the second conveyor belt 1005 to be transported to the feeding track 1006 for the next process. The non-compliant batch of aggregate is put into the crusher 1002b for crushing. After crushing, it is handed over to the mechanical electric screen 1003 for screening. The aggregate with compliant particle size is finally sent to the first conveyor belt 1004 to be transported to the feeding track 1006 for the next process.Compared to existing technologies, this invention, through the combination of two supply lines and a feeding track 1006, can simultaneously meet the pre-humidity control requirements of various recycled aggregates. Aggregates with compliant particle size that can be directly used are fed to a supply line consisting of a second conveyor belt 1005 for processing, while aggregates with non-compliant particle size are fed to a supply line with particle size crushing and screening functions consisting of a crusher 1002b, a mechanical electric screen 1003, and a first conveyor belt 1004 for processing, which greatly improves the adaptability of the entire pre-humidity control system.

[0063] Depend on Figure 3 As shown, the drying and weighing section 2000 includes a drying chamber 2001 mounted on a drying chamber mounting base 1007a and a digital display electronic scale 2002 mounted on a digital display electronic scale mounting base 1007b. Both the drying chamber 2001 and the digital display electronic scale 2002 are general-purpose components. The drying chamber 2001 can be used to dry aggregate samples, while the digital display electronic scale 2002 is used to measure the mass of the aggregate with and without moisture. In conjunction with the drying chamber 2001, the subsequent sample soaking unit 3100, and the sample air-drying unit 3200, the final moisture content and water absorption capacity of the sample aggregate are obtained. The purpose of this structure is for the sample moisture detection process. When the sample transfer unit 6100 moves the rectangular storage tank 6110 containing the aggregate to the drying and weighing section 2000, the electric trolley is controlled to move the sample transfer unit 6100 to the drying and weighing interface 1006c, and the first rotary motor 6102 is controlled to rotate the second electric motor. Push rod mounting base 6103, so that rectangular storage slot 6110 faces digital display electronic scale 2002. Then release the second electric gripper 6109b of clamping holder 6110b, push out the third electric push rod 6107a to move rectangular storage slot 6110 above the electronic scale. Then adjust the second electric push rod 6104 to lower the third electric push rod mounting base 6105 and the fourth electric push rod mounting base 6106 to a suitable height. Finally, release the first electric gripper 6109a, and the storage slot falls to digital display electronic scale 2002 to weigh wet weight. Retrieve in the reverse manner and adjust the overall orientation to face drying box 2001. Construction personnel open drying box 2001 and, in the same manner, actuate each push rod and gripper to place rectangular storage slot 6110 into drying box 2001. Adjust the drying time according to the actual situation. After completion, retrieve again and place on digital display electronic scale to measure dry weight. Finally, combine wet and dry weight data to obtain sample aggregate moisture content.

[0064] Depend on Figure 4-5As shown, the soaking and drying section 3000 includes a sample soaking unit 3100 and a sample drying unit 3200, which are distributed on both sides of the soaking and drying interface 1006d as the main body. The sample soaking unit 3100 includes a first lower working box 3101a installed on the ground 1001. A large inward rectangular slot is provided in the middle of the box, and an annular slot is provided around the rectangular slot. The shape and size of the annular slot match the insertion plate 6110a of the rectangular storage slot 6110. Four support rods 3102 are provided around the first lower working box 3101a. The top of the sample drying unit 3200 is connected to a first electric push rod mounting base 3103. A first electric push rod 3104 with its output end pointing downwards is located at the top of the first electric push rod mounting base 3103. The output end of the first electric push rod 3104 passes through the first electric push rod mounting base 3103 and is connected to a first upper working box 3101b. The first upper working box 3101b has the same shape and size as the first lower working box 3101a, but is oriented in the opposite direction and corresponding in position. It also has an annular slot for inserting a plate 6110a. The sample drying unit 3200 has a similar overall structure to the sample soaking unit 3100. The only difference is that the first lower working box 3101a and the first upper working box 3101b are replaced with a second lower working box 3201a and a second upper working box 3201b. A lower ventilation port 3203a is opened at the bottom of the second lower working box 3201a, and an upper ventilation port 3203b is opened on the second upper working box 3201b. Simultaneously, a downward-facing sample drying fan 3202 is installed inside the second upper working box 3201b. The sample drying fan 3202 is a general-purpose component used to remove free water from the surface of the sample aggregate by blowing air. Sample soaking unit 31 The first lower working box 3101a of the 00 is equipped with a first pressurizing pump 3001, a first water storage tank 3002, a first water pump 3003, and a first wastewater tank 3004. The first pressurizing pump 3001 is connected to the first lower working box 3101a and the first water storage tank 3002 via water pipes, and the first water pump 3003 is connected to the first lower working box 3101a and the first wastewater tank 3004 via water pipes. It should be noted that a small vent hole can also be provided on the first upper working box 3101b to facilitate the internal air pressure balance after subsequent water filling.The purpose of this structure is for the sample water absorption capacity testing process. First, the sample transfer unit 6100 is sent to the digital display electronic scale 2002 for dry weight measurement in the same manner as in the sample humidity testing process described above. When the sample transfer unit 6100, carrying the rectangular storage tank 6110 containing aggregate, arrives at the soaking and drying section 3000, the electric trolley is controlled to move the sample transfer unit 6100 to the soaking and drying interface 1006d. Then, in the same manner as in the sample humidity testing process described above, the rectangular storage tank 6110 is oriented towards the sample soaking unit 3100 and pushed into the first lower working box 31. Above 01a, align the insert plate 6110a with the annular slot on the first lower working box 3101a. Then, lower the second electric push rod 6104 to insert the lower insert plate 6110a into the first lower working box 3101a. Release the first electric gripper 6109a and move the third electric push rod 6107a back. Lower the first upper working box 3101b via the first electric push rod 3104 until the annular slot on the first upper working box 3101a is inserted by the upper insert plate 6110a. A sealing ring can be installed around the insert plate 6110a as needed. At this point, the first upper working box 3101a... 1b. The rectangular storage tank 6110 and the first lower working box 3101a are connected from top to bottom to form a sealed whole. At this time, water can be injected into the whole from bottom to top through the first water storage tank 3002 by the first pressure pump 3001 until the water surface submerges the rectangular storage tank 6110 and the aggregate therein. After a period of time, the aggregate has completely absorbed the water. Then, the wastewater is pumped to the first wastewater tank 3004 by the first water pump 3003. After evacuation, the first electric push rod 3104 is raised. The sample transfer unit 6100 retrieves the rectangular storage tank 6110 and puts it into the sample drying unit 3200 in the same way. The second upper working box 3201b is lowered to form a whole again. The sample drying fan 3202 is started to remove free water from the surface of the aggregate. After the free water is removed, the sample transfer unit 6100 is moved to the digital display electronic scale 2002 for wet weight measurement. The water absorption capacity data of the sample aggregate is obtained by comparing the dry weight and the wet weight after water absorption. It should be noted that the sample used for water absorption capacity testing here is a different sample from the same batch as the sample used for humidity testing above. Their data should be the same, and it should also be completely the same as the aggregate that needs pre-humidity adjustment in subsequent large batches. Compared to existing technologies, this invention utilizes a sample soaking unit 3100 and a sample drying unit 3200 that work in conjunction with the sample transfer unit 6100. After the rectangular storage tank 6110 is inserted, the upper and lower working boxes and the storage tank form a tight, integrated unit, allowing the sample soaking process to be carried out in a sealed manner, ensuring more thorough water absorption. Simultaneously, the drying process can be targeted, saving energy and improving drying efficiency, rapidly removing free water from the aggregate surface, thus facilitating accurate subsequent weighing.

[0065] Depend on Figure 6As shown, the centrifugal dewatering section 4000 includes several centrifugal dewatering machines 4001 and an air-drying dewatering unit 4100 distributed on both sides of the track of the centrifugal dewatering interface 1006e. The centrifugal dewatering machine 4001 is a general-purpose component, which is provided with an inlet 4001a and an outlet 4001b, which can remove excess water from the aggregate, thereby reducing the aggregate moisture content. The air-drying dewatering unit 4100 has a similar general structure to the sample air-drying unit 3200, except that its second lower working box 3201a and second upper working box 3201b are replaced with a third lower working box 4101a and a third upper working box 4101b, and the upper working box is removed. The annular slot is provided, and a semi-circular drying groove 4102 is set at the middle position of the corresponding two sides, with the diameter matching the front bearing 6204a and the rear bearing 6204b. Similarly, ventilation openings 4103 are also provided on the third lower working box 4101a and the third upper working box 4101b. At the same time, a downward drying fan is provided in the third upper working box 4101b. The purpose of this structure is that when performing the batch aggregate centrifugal dewatering process, the batch transfer unit 6200 is first moved to the track of the centrifugal dewatering interface 1006e, and its direction is adjusted so that the drum storage tank 6205 faces the drying and dewatering unit 4100. The fifth electric motor is used to... Push rod 6201 pushes out the third rotary motor 6203 and its upper roller storage tank 6205 until the front bearing 6204a and rear bearing 6204b move above the semicircular groove 4102 of the third lower working box 4101a. The second electric push rod 6104 of the batch transfer unit 6200 is lowered, causing the bearings to fall onto the semicircular groove 4102. At this time, the third upper working box 4101b is lowered, so that the semicircular grooves 4102 of the two working boxes engage with the bearings. The drying fan is started to dry the aggregate in the roller storage tank 6205. Simultaneously, the third rotary motor 6203 is controlled to rotate repeatedly, but its upper rectangular opening 62 must be kept in place. 05a always faces upwards, preventing aggregate from falling off. After the free water on the surface of the aggregate is removed during air drying, the drum storage tank 6205 can be retracted and moved above the feed inlet 4001a. The third rotary motor 6203 is controlled to rotate the drum storage tank 6205, causing its rectangular opening 6205a to face downwards, thus allowing the aggregate to fall into the centrifugal dewatering machine 4001. The centrifugal dewatering machine is started to remove the internal moisture of the aggregate and reduce humidity. Finally, the drum storage tank 6205 is moved to the discharge outlet 4001b to collect the dewatered aggregate, completing the centrifugal dewatering process. Afterwards, the aggregate can be transferred to the aggregate curing box 7000 for storage.Compared to existing technologies, this invention, through a plurality of centrifugal dewatering machines 4001 and air-drying dewatering units 4100 set on both sides of the track of the centrifugal dewatering interface 1006e, can remove internal and surface moisture from the aggregate, reducing aggregate humidity. At the same time, the air-drying dewatering unit 4100 has air-drying semi-circular grooves 4102 set on the third lower working box 4101a and the third upper working box 4101b, which can cooperate with the bearings of the batch transfer unit 6200, so that the aggregate can be semi-sealed and rolled for air drying in the drum storage tank 6205 to a certain extent, which greatly improves the air drying efficiency. In addition, since a large number of identical air-drying dewatering units 4100 are set, the air drying time of each unit can be adjusted according to the actual situation, thereby improving the efficiency and accuracy of aggregate pre-humidity control.

[0066] Depend on Figure 7As shown, the batch spraying section 5000 includes several batch spraying units 5100 distributed on both sides of the batch spraying interface 1006f. The general structure of the batch spraying unit 5100 is similar to that of the air drying and dehydration unit 4100, except that its third lower working box 4101a and third upper working box 4101b are replaced by a fourth lower working box 5101a and a fourth upper working box 5101b. The fourth lower working box 5101a and the fourth upper working box 5101b do not have upper and lower ventilation openings, but the fourth lower working box 5101a and the fourth upper working box 5101b still have ventilation openings. The spray semicircular trough 5102 has the same structure as the dry semicircular trough 4102, and an electric valve 5103 is installed at the bottom of the fourth lower working box 5101a, with a water level sensor 5104 installed inside; a spray pipe 5105 is installed on the fourth upper working box 5101b, with an atomizing nozzle matrix installed inside, and the spray pipe 5105 is connected to the atomizing nozzle matrix; the batch spraying section 5000 also includes a second water storage tank 5001a, a second wastewater tank 5001b, a second pressurizing pump 5002a, and a second water pump 5002b installed on the ground 1001; the second pressurizing... Pump 5002a is connected to the second water storage tank 5001a and the spray pipe via a pipeline, and the second water pump 5002b is connected to the second wastewater tank 5001b and the electric valve 5103 via a pipeline. The purpose of this structure is that when a batch spraying humidification process is required, the batch transfer unit 6200 is moved to the track of the batch spraying interface 1006f, and the drum storage tank 6205 is moved to the batch spraying unit 5100 in the same manner as the batch aggregate centrifugal dewatering process described above. The fourth upper working box 5101b is then lowered to form a closed whole, and the opening... The second pressurizing pump 5002a and the atomizing nozzle matrix in the fourth upper working box 5101b spray water. Simultaneously, the third rotary motor 6203 is started, causing the drum storage tank 6205 to rotate, realizing the rotation and humidification of the internal aggregate. After humidification, the drum storage tank 6205 can be retracted to prepare for the centrifugal dewatering process. When the water level inside the fourth lower working box 5101a reaches the height of the water level sensor 5104, the electric valve 5103 is opened, the second water pump 5002b starts to work, and all the wastewater is pumped to the second wastewater tank 5001b for storage. Compared to existing technologies, this invention significantly reduces mold replacement costs during manufacturing by setting up sample soaking unit 3100, sample air drying unit 3200, air drying and dehydration unit 4100, and batch spraying unit 5100 with similar but not identical structures. At the same time, due to their similar but different structures, they can be used in conjunction with sample transfer unit 6100 and batch transfer unit 6200 to achieve the same steps but different functions, greatly improving the overall system efficiency. Furthermore, the closed spraying in batch spraying unit 5100 can reduce water waste and achieve precise humidification.

[0067] Depend on Figure 8-10As shown, the storage and transfer section 6000 includes several sample transfer units 6100 disposed on the sample transfer unit storage area 1006a, and several batch transfer units 6200 disposed on the batch transfer unit storage area 1006b. The sample transfer units 6100 are mounted on the feeding track 1006 via electric trolleys. The upper end of the electric trolley is connected to the bottom of a first rotary motor mounting base 6101. A first rotary motor 6102 is mounted on the first rotary motor mounting base 6101. The output end of the first rotary motor 6102 is connected to a second electric push rod mounting base 6103. Four upward-facing second electric push rods 6104 are mounted at the four corners of the second electric push rod mounting base 6103, wherein adjacent second electric push rods 6104... There are two groups of 04. The output ends of the second electric push rods 6104 in these two groups are respectively connected to the third electric push rod mounting base 6105 and the fourth electric push rod mounting base 6104. A third electric push rod 6107a with its output end facing horizontally inward is installed in the middle of the third electric push rod mounting base 6105, and two fourth electric push rods 6107b with their output ends facing longitudinally inward are installed at both ends of the fourth electric push rod mounting base 6106. A second rotary motor 6108 is connected to the output end of the third electric push rod 6107a, and a first electric gripper 6109a is connected to the output end of the second rotary motor 6108. The second electric gripper 6109b is connected to the output end of the fourth electric push rod 6107b. The sample transfer unit 6100 also includes a rectangular storage... The storage tank 6110 has a rectangular slot in the middle, and the bottom of the rectangular slot has a number of fine mesh holes 6110c. The outer perimeter of the rectangular slot has protruding inserts 6110a on both the top and bottom. The size and shape of the inserts 6110a match the annular slot on the work box. Three clamping seats 6110b are provided on the outer side of the outer perimeter of the rectangular storage tank 6110, their orientations matching the two second electric grippers 6109b and one first electric gripper 6109a, respectively. The batch transfer unit 6200 has a similar general structure to the sample transfer unit 6100, except that its fourth electric push rod mounting seat 6106 is replaced by a roller storage tank support plate 6202, and the third electric push rod 6107a is replaced by a fifth... The fifth electric push rod 6201; the middle part of the drum storage tank support plate 6202 is an arc-shaped plate structure, the size and shape of which match the drum storage tank 6205; the output end of the fifth electric push rod 6201 is connected to the third rotary motor 6203, the output shaft of the third rotary motor 6203 is equipped with a front bearing 6204a, and the end of the output shaft of the third rotary motor 6203 is connected to the drum storage tank 6205. The other end of the drum storage tank 6205 is equipped with a coaxial support rod, and the support rod is equipped with a rear bearing 6204b; the drum storage tank 6205 is a cylindrical structure with a rectangular opening 6205a. At the same time, the trough for holding aggregate is equipped with several fine mesh openings to facilitate air circulation without causing aggregate to fall off.The purpose of this structure is that when material handling and transfer are required, the sample transfer unit 6100 is pre-set in the sample transfer unit storage area 1006a, and the batch transfer unit 6200 is pre-set in the batch transfer unit storage area 1006b. The system determines whether the current process is for sample handling or batch handling based on the actual situation. If it is for sample handling, the sample transfer unit 6100 is controlled to move to the output end of the two supply lines and receive the material through the rectangular storage tank 6110. If it is for batch handling, the batch transfer unit 6200 is controlled to move to the output end of the two supply lines and receive the material through the roller storage tank 6205. After receiving the material, the subsequent processes can be carried out. Compared to existing technologies, the sample transfer unit 6100 and batch transfer unit 6200 designed in this invention can respectively handle the handling, monitoring, and control of small-volume sample aggregates, and the spraying, air-drying, and dehydration of large-volume aggregates, significantly improving the efficiency of aggregate transfer and pre-humidity monitoring and control. Furthermore, the size of the batch transfer unit 6200, the air-drying and dehydration unit 4100, and the batch spraying unit 5100 can be adjusted according to actual needs to match the requirements of larger-volume concrete control.

[0068] Accordingly, the pre-humidity conditioning method for recycled aggregates of the present invention, such as Figure 1-10 As shown, it includes:

[0069] Categorized feeding: Based on the actual situation of recycled aggregate, it is divided into two categories: one is aggregate with compliant particle size that can be used directly, and the other is aggregate with non-compliant particle size that needs to be crushed and screened. The compliant batch of aggregate is directly placed on the second conveyor belt 1005 to be conveyed to the feeding track 1006 for the next process. The non-compliant batch of aggregate is fed into the crusher 1002b for crushing. After crushing, it is screened by the mechanical electric screen 1003. The aggregate with compliant particle size is finally sent to the first conveyor belt 1004 to be conveyed to the feeding track 1006 for the next process.

[0070] Material receiving and transfer: The sample transfer unit 6100 is pre-set in the sample transfer unit storage area 1006a, and the batch transfer unit 6200 is pre-set in the batch transfer unit storage area 1006b. It is determined whether the current process is for sample retrieval or batch control retrieval based on the actual situation. If it is for sample retrieval, the sample transfer unit 6100 is controlled to move to the output end of the two supply lines and receive the material through the rectangular storage tank 6110. If it is for batch retrieval, the batch transfer unit 6200 is controlled to move to the output end of the two supply lines and receive the material through the roller storage tank 6205. After the material receiving is completed, the subsequent process can be carried out.

[0071] Sample humidity detection: When the sample transfer unit 6100 moves the rectangular storage tank 6110 containing aggregate to the drying and weighing section 2000, the electric trolley is controlled to move the sample transfer unit 6100 to the drying and weighing interface 1006c. The first rotary motor 6102 is controlled to rotate the second electric push rod mounting base 6103, so that the rectangular storage tank 6110 faces the digital display electronic scale 2002. Then, the second electric gripper 6109b of the clamping holder 6110b is released, and the third electric push rod 6107a is pushed out, so that the rectangular storage tank 6110 moves above the electronic scale. The second electric push rod 6107a is then adjusted accordingly. 4. Lower the third electric push rod mounting base 6105 and the fourth electric push rod mounting base 6106 to a suitable height. Finally, release the first electric gripper 6109a, and the rectangular storage tank 6110 falls onto the digital display electronic scale 2002 to weigh the wet weight. Retrieve it in the reverse manner and adjust the overall orientation toward the drying box 2001. The construction personnel open the drying box 2001 and, in the same manner, actuate each push rod and gripper to place the rectangular storage tank 6110 into the drying box 2001. Adjust the drying time according to the actual situation. After completion, retrieve it again and place it on the digital display electronic scale 2002 to measure the dry weight. Finally, combine the wet weight and dry weight data to obtain the sample aggregate moisture content.

[0072] Sample water absorption capacity test: First, in the same manner as the sample humidity test procedure described above, the sample transfer unit 6100 is sent to the digital display electronic scale 2002 for dry weight measurement. When the sample transfer unit 6100, carrying the rectangular storage tank 6110 containing aggregate, arrives at the soaking and drying section 3000, the electric trolley is controlled to move the sample transfer unit 6100 to the soaking and drying interface 1006d. Then, in the same manner as the sample humidity test procedure described above, the rectangular storage tank 6110 is moved towards the sample soaking unit 3100 and pushed above the first lower working box 3101a, so that the insert plate 611... Align 0a with the annular slot on the first lower working box 3101a. At this point, lower the second electric push rod 6104 so that the lower insert plate 6110a is inserted into the first lower working box 3101a. Release the first electric gripper 6109a and move the third electric push rod 6107a back. Lower the first upper working box 3101b via the first electric push rod 3104 until the annular slot on the upper working box is inserted by the upper insert plate 6110a. A sealing ring can be installed around the insert plate 6110a as needed. At this point, the first upper working box 3101b, the rectangular storage slot 6110, and the first lower working box 3101a are all in place. 01a is connected from top to bottom to form a sealed whole. Water can be injected into this whole from bottom to top from the first water storage tank 3002 by the first pressurizing pump 3001 until the water surface submerges the rectangular storage tank 6110 and the aggregate therein. After a period of time, the aggregate has completely absorbed the water. Then, the wastewater is pumped to the first wastewater tank 3004 by the first water pump 3003. After evacuation, the first electric push rod 3104 is raised, and the sample transfer unit 6100 retrieves the rectangular storage tank 6110 and places it into the sample drying unit 3200 in the same way. The second upper working box 3201b is then lowered to form a whole again. Overall, the sample drying fan 3202 is activated to remove free water from the surface of the aggregate. After the free water is removed, the sample transfer unit 6100 is moved to the digital display electronic scale 2002 for wet weight measurement. The water absorption capacity data of the sample aggregate is obtained by comparing the dry weight and the wet weight after water absorption. It should be noted that the sample used for water absorption capacity testing here is a different sample from the same batch as the sample used for humidity testing above. Their data should be the same. At the same time, it should be exactly the same as the aggregate that needs pre-humidity adjustment in subsequent large batches. Therefore, the subsequent batch pre-humidity adjustment process can be carried out according to the sample data.

[0073] Batch spraying: Move the batch transfer unit 6200 to the track of the batch spraying interface 1006f, and move the drum storage tank 6205 to the batch spraying unit 5100 in the same manner as the batch aggregate centrifugal dewatering process described below. Lower the fourth upper working box 5101b to form a closed whole. Turn on the second pressure pump 5002a, and the atomizing nozzle matrix in the fourth upper working box 5101b sprays water. Simultaneously start the third rotary motor 6203 to make the drum storage tank 6205 rotate, realizing the rotation humidification of the internal aggregate. After humidification, the drum storage tank 6205 can be retracted to prepare for the centrifugal dewatering process. When the water level inside the fourth lower working box 5101a reaches the height of the water level sensor 5104, control the electric valve 5103 to open, and the second water pump 5002b starts to work and pumps all the wastewater into the second wastewater tank 5001b for storage.

[0074] Centrifugal dewatering: First, move the batch transfer unit 6200 to the track of the centrifugal dewatering interface 1006e, and adjust its direction so that the drum storage tank 6205 faces the air-drying dewatering unit 4100. The third rotary motor 6203 and its upper drum storage tank 6205 are pushed out by the fifth electric push rod 6201 until the front bearing 6204a and the rear bearing 6204b are moved above the semi-circular groove 4102 of the third lower working box 4101a. The second electric push rod 6104 of the batch transfer unit 6200 is lowered so that the bearings fall onto the semi-circular groove 4102. At this time, the third upper working box 4101b is lowered so that the semi-circular grooves 4102 of the two working boxes engage with the bearings. The air-drying fan is started to air-dry the aggregate in the drum storage tank 6205, and the third rotary motor is controlled synchronously. The rotary motor 6203 rotates repeatedly, ensuring that its rectangular opening 6205a always faces upwards to prevent aggregate from falling off. After the free water on the surface of the aggregate is removed during air drying, the drum storage tank 6205 can be retracted and moved above the feed inlet 4001a. The third rotary motor 6203 is then controlled to rotate the drum storage tank 6205, causing its rectangular opening 6205a to face downwards, thus allowing the aggregate to fall into the centrifugal dewatering machine 4001. The centrifugal dewatering machine is then started to remove internal moisture from the aggregate and reduce humidity. Finally, the drum storage tank 6205 is moved to the discharge outlet 4001b to collect the dewatered aggregate, completing the centrifugal dewatering process. Afterward, the aggregate can be transferred to the aggregate curing box 7000 for storage, thus completing the entire pre-humidity conditioning of the recycled aggregate.

[0075] It should be understood that the above description of the preferred embodiments is quite detailed, but it should not be considered as a limitation on the scope of protection of this invention. Those skilled in the art, under the guidance of this invention, can make substitutions or modifications without departing from the scope of protection of the claims of this invention, and all such substitutions or modifications fall within the scope of protection of this invention. The scope of protection of this invention should be determined by the appended claims.

Claims

1. A pre-humidity conditioning system for recycled aggregates, characterized in that, This includes the supply line section (1000), which is the main component. The supply line section (1000) includes a feeding track (1006), and a drying and weighing section (2000), a soaking and air-drying section (3000), a batch spraying section (5000), a centrifugal dehydration section (4000), and a storage and transfer section (6000) are arranged counterclockwise around the feeding track (1006). The supply line section (1000) includes a ground (1001) serving as an integral base. A crusher mounting base (1002a), a drying oven mounting base (1007a), and a digital display electronic scale mounting base (1007b) are installed on the ground (1001). Two supply lines are also provided on the ground (1001). One line includes a crusher (1002b), a mechanical electric screen (1003), and a first conveyor belt (1004) connected from front to back. The other line includes a second conveyor belt (1005). The output ends of both supply lines are located near the center of the ground (1001). The feeding track (1006) includes a central rectangular track as the main body. The central rectangular track is arranged in a counterclockwise direction as follows: a sample transfer unit storage area (1006a), a drying and weighing interface (1006c), a soaking and air-drying interface (1006d), an aggregate curing interface (1006g), a batch spraying interface (1006f), a centrifugal dehydration interface (1006e), and a batch transfer and storage area (1006b). The aggregate curing interface (1006g) faces the inside of the central rectangular track, while the others face the outside of the central rectangular track. The soaking and drying section (3000) includes a sample soaking unit (3100) and a sample drying unit (3200) arranged as the main body on both sides of the soaking and drying interface (1006d); the sample soaking unit (3100) includes a first lower working box (3101a) installed on the ground (1001), the first lower working box (3101a) has an inward rectangular slot in the middle, and a ring slot is provided around the rectangular slot; four support rods (3102) are provided around the first lower working box (3101a), the support rods (3102) The top end is connected to a first electric push rod mounting base (3103). The top end of the first electric push rod mounting base (3103) is equipped with a first electric push rod (3104) with the output end facing downward. The output end of the first electric push rod (3104) passes through the first electric push rod mounting base (3103) and is connected to a first upper working box (3101b). The shape and size of the first upper working box (3101b) are the same as those of the first lower working box (3101a), but the opposite direction and the corresponding position. It is also provided with an annular slot for inserting the insert plate (6110a). The sample drying unit (3200) has a similar general structure to the sample soaking unit (3100), except that its first lower working box (3101a) and first upper working box (3101b) are replaced with a second lower working box (3201a) and a second upper working box (3201b). A lower ventilation port (3203a) is opened at the bottom of the second lower working box (3201a), and an upper ventilation port (3203b) is opened on the second upper working box (3201b). At the same time, a sample drying fan (3202) with a downward airflow direction is installed inside the second upper working box (3201b).

2. The recycled aggregate pre-humidification system according to claim 1, characterized in that, The sample transfer unit storage area (1006a) and the batch transfer storage area (1006b) are two rectangular extended tracks between two supply lines, which are used to store the sample transfer unit (6100) and the batch transfer unit (6200) of the storage and transfer section (6000), respectively; a drying box mounting base (1007a) and a digital display electronic scale mounting base (1007b) are provided near the drying and weighing interface (1006c) for installing the drying and weighing section (2000).

3. The recycled aggregate pre-humidity conditioning system according to claim 1, characterized in that, The drying and weighing unit (2000) includes a drying box (2001) mounted on a drying box mounting base (1007a) and a digital display electronic scale (2002) mounted on a digital display electronic scale mounting base (1007b).

4. The recycled aggregate pre-humidification system according to claim 1, characterized in that, The sample soaking unit (3100) has a first pressurizing pump (3001), a first water storage tank (3002), a first water pump (3003), and a first wastewater tank (3004) located near the first lower working chamber (3101a). The first pressurizing pump (3001) is connected to the first lower working chamber (3101a) and the first water storage tank (3002) via water pipes, and the first water pump (3003) is connected to the first lower working chamber (3101a) and the first wastewater tank (3004) via water pipes.

5. The recycled aggregate pre-humidity conditioning system according to claim 1, characterized in that, The centrifugal dehydration section (4000) includes several centrifugal dehydrators (4001) and an air-drying dehydration unit (4100) distributed on both sides of the track of the centrifugal dehydration interface (1006e). The air-drying dehydration unit (4100) has a general structure similar to the sample air-drying unit (3200), except that its second lower working chamber (3201a) and second upper working chamber (3201b) are replaced with a third lower working chamber (4101a) and a third upper working chamber (4101b), and the third lower working chamber is removed. The work box (4101a) and the third upper work box (4101b) are provided with annular slots, and a drying semi-circular groove (4102) is provided in the middle of the corresponding two sides, with the diameter matching the front bearing (6204a) and the rear bearing (6204b); similarly, the third lower work box (4101a) and the third upper work box (4101b) are provided with ventilation openings (4103), and the third upper work box (4101b) is provided with a downward-facing drying fan.

6. The recycled aggregate pre-humidity conditioning system according to claim 5, characterized in that, The batch spraying section (5000) includes several batch spraying units (5100) distributed on both sides of the batch spraying interface (1006f). The batch spraying unit (5100) has a general structure similar to the air-drying and dehydration unit (4100), but its third lower working box (4101a) and third upper working box (4101b) are replaced with a fourth lower working box (5101a) and a fourth upper working box (5101b). The fourth lower working box (5101a) and the fourth upper working box (5101b) are provided with a spraying semi-circular trough (5102) with the same structure as the air-drying semi-circular trough (4102). An electric valve (5103) is provided at the bottom of the fourth lower working box (5101a), and a water level is set inside. Sensor (5104); A spray pipe (5105) is provided on the fourth upper working box (5101b), and an atomizing nozzle matrix is ​​provided inside. The spray pipe (5105) is connected to the atomizing nozzle matrix; The batch spraying part (5000) also includes a second water storage tank (5001a), a second wastewater tank (5001b), a second booster pump (5002a), and a second pump (5002b) installed on the ground (1001); The second booster pump (5002a) is connected to the second water storage tank (5001a) and the spray pipe through a pipe, and the second pump (5002b) is connected to the second wastewater tank (5001b) and the electric valve (5103) through a pipe.

7. The recycled aggregate pre-humidity conditioning system according to claim 1, characterized in that, The storage and transfer section (6000) includes several sample transfer units (6100) disposed on the sample transfer unit storage area (1006a), and several batch transfer units (6200) disposed on the batch transfer unit storage area (1006b). The sample transfer unit (6100) is mounted on the feeding track (1006) via an electric trolley. The upper end of the electric trolley is connected to a first rotary motor mounting base (6101). A first rotary motor (6102) is mounted on the first rotary motor mounting base (6101). The output end of the first rotary motor (6102) is connected to a second electric push rod mounting base (6103). Four upward-facing second electric push rods (6104) are mounted at the four corners of the second electric push rod mounting base (6103), wherein two adjacent second electric push rods (6104) are mounted on the first rotary motor mounting base (6103). Two electric actuators (6104) are arranged as a set, and there are two sets in total. The output ends of the two sets of second electric actuators (6104) are respectively connected to a third electric actuator mounting base (6105) and a fourth electric actuator mounting base (6106). A third electric actuator (6107a) with its output end facing horizontally inward is installed in the middle of the third electric actuator mounting base (6105), and two fourth electric actuators (6107b) with their output ends facing longitudinally inward are installed at both ends of the fourth electric actuator mounting base (6106). A second rotary motor (6108) is connected to the output end of the third electric actuator (6107a), and a first electric gripper (6109a) is connected to the output end of the second rotary motor (6108). A second electric gripper (6109b) is connected to the output end of the fourth electric actuator (6107b). The sample transfer unit (6100) also includes a rectangular storage tank (6110). The rectangular storage tank (6110) has a rectangular slot in the middle and a large number of fine mesh holes (6110c) at the bottom. The outer side of the rectangular slot has a baffle with protruding inserts (6110a) on both the top and bottom. The size and shape of the inserts (6110a) match the annular slot. At the same time, three clamping seats (6110b) are provided on the outer side of the outer baffle of the rectangular storage tank (6110), and their orientations match the two second electric grippers (6109b) and one first electric gripper (6109a) respectively. The bulk transfer unit (6200) has a similar general structure to the sample transfer unit (6100), except that its fourth electric push rod mounting base (6106) is replaced with a roller storage tank support plate (6202), and the third electric push rod (6107a) is replaced with a fifth electric push rod (6201). The roller storage tank support plate (6202) has an arc-shaped plate structure in the middle, which matches the size and shape of the roller storage tank (6205). The output end of the fifth electric push rod (6201) is connected to... A third rotary motor (6203) has a front bearing (6204a) mounted on its output shaft, and a roller storage tank (6205) is connected to the end of the output shaft. A coaxial support rod is provided at the other end of the roller storage tank (6205), and a rear bearing (6204b) is mounted on the support rod. The roller storage tank (6205) is a cylindrical structure with a rectangular opening (6205a) on it.

8. A method for pre-humidification of recycled aggregate, characterized in that, include: Sorted feeding: compliant batches of aggregate are placed directly onto the second conveyor belt (1005) to be conveyed to the feeding track (1006) for the next process. Non-compliant batches of aggregate are fed into the crusher (1002b) for crushing. After crushing, they are screened by a mechanical electric screen (1003). The aggregate with the compliant particle size is finally sent to the first conveyor belt (1004) to be conveyed to the feeding track (1006) for the next process. Material receiving and transfer: The sample transfer unit (6100) is pre-set in the sample transfer unit storage area (1006a), and the batch transfer unit (6200) is pre-set in the batch transfer unit storage area (1006b). It is determined whether the current process is for sample retrieval or batch control retrieval based on the actual situation. If it is for sample retrieval, the sample transfer unit (6100) is controlled to move to the output end of the two supply lines and receive the material through the rectangular storage tank (6110). If it is for batch retrieval, the batch transfer unit (6200) is controlled to move to the output end of the two supply lines and receive the material through the roller storage tank (6205). After receiving the material, the subsequent process can be carried out. Sample humidity detection: When the sample transfer unit (6100) moves the rectangular storage tank (6110) containing aggregate to the drying and weighing section (2000), the electric trolley is controlled to move the sample transfer unit (6100) to the drying and weighing interface (1006c). The first rotary motor (6102) is controlled to rotate the second electric push rod mounting base (6103), so that the rectangular storage tank (6110) faces the digital display electronic scale (2002). Then, the second electric gripper (6109b) of the clamping holder (6110b) is released, and the third electric push rod (6107a) is pushed out, so that the rectangular storage tank (6110) moves above the electronic scale. Then, the second electric push rod is adjusted ( 6104) lower the third electric push rod mounting base (6105) and the fourth electric push rod mounting base (6106) to a suitable height, and finally release the first electric gripper (6109a). The rectangular storage tank (6110) falls onto the digital display electronic scale (2002) to weigh the wet weight. It is retrieved in the opposite way and the overall direction is adjusted to face the drying box (2001). The construction personnel open the drying box (2001) and, in the same way, each push rod and gripper moves to place the rectangular storage tank (6110) into the drying box (2001). The drying time is adjusted according to the actual situation. After completion, it is retrieved again and placed on the digital display electronic scale (2002) to measure the dry weight. Finally, the wet weight and dry weight data are combined to obtain the sample aggregate moisture content. Sample water absorption capacity test: First, the sample transfer unit (6100) is sent to the digital display electronic scale (2002) for dry weight measurement in the same manner as in the sample humidity test procedure above. When the sample transfer unit (6100) carrying the rectangular storage tank (6110) containing aggregate arrives at the soaking and drying section (3000), the electric trolley is controlled to move the sample transfer unit (6100) to the soaking and drying interface (1006d). Then, the rectangular storage tank (6110) is oriented towards the sample soaking unit in the same manner as in the sample humidity test procedure above. (3100) Push it above the first lower working box (3101a) so that its insert plate (6110a) is aligned with the annular slot on the first lower working box (3101a). Lower the second electric push rod (6104) so ​​that the lower insert plate (6110a) is inserted into the first lower working box (3101a). At this time, release the first electric gripper (6109a) and move back the third electric push rod (6107a). Lower the first upper working box (3101b) through the first electric push rod (3104) until the annular slot on the upper working box is closed by the upper end. When the insert plate (6110a) is inserted, the first upper working box (3101b), the rectangular storage tank (6110), and the first lower working box (3101a) are connected from top to bottom into a sealed whole. Water can be injected into this whole from bottom to top from the first water storage tank (3002) by the first pressurizing pump (3001) until the water surface submerges the rectangular storage tank (6110) and the aggregate therein. After a period of time, the aggregate has completely absorbed the water. Then, the wastewater is pumped to the first wastewater tank (3004) by the first water pump (3003). After evacuation, the first electric pump is raised. After the sample transfer unit (6100) retrieves the rectangular storage slot (6110) by the push rod (3104), it is placed into the sample drying unit (3200) in the same way, and the second upper working box (3201b) is lowered so that it forms a whole again. The sample drying fan (3202) is started to remove the free water on the surface of the aggregate. After the free water is removed, the sample transfer unit (6100) is moved to the digital display electronic scale (2002) to measure the wet weight. The water absorption capacity data of the sample aggregate is obtained by the dry weight and the wet weight data after water absorption. Batch spraying: Move the batch transfer unit (6200) to the track of the batch spraying interface (1006f), and move the drum storage tank (6205) to the batch spraying unit (5100) in the same way as the centrifugal dewatering process. Lower the fourth upper working box (5101b) to form a closed whole. Turn on the second pressure pump (5002a), and the atomizing nozzle matrix in the fourth upper working box (5101b) sprays water. Simultaneously start the third rotary motor (6203) to make the drum storage tank (6205) rotate, so as to realize the rotation humidification of the aggregate inside. After humidification is completed, retract the drum storage tank (6205) to prepare for the centrifugal dewatering process. When the water level inside the fourth lower working box (5101a) reaches the height of the water level sensor (5104), control the electric valve (5103) to open, and the second water pump (5002b) starts to work and pumps all the wastewater into the second wastewater tank (5001b) for storage. Centrifugal dehydration: First, move the batch transfer unit (6200) to the track of the centrifugal dehydration interface (1006e), and adjust its direction so that the drum storage tank (6205) faces the air-drying dehydration unit (4100). Push out the third rotary motor (6203) and its upper drum storage tank (6205) through the fifth electric push rod (6201) until the front bearing (6204a) and the rear bearing (6204b) move to the semi-circular groove (4102) of the third lower working box (4101a). Lower the second electric push rod (6104) of the batch transfer unit (6200) so that the bearings fall onto the semi-circular groove (4102). At this time, lower the third upper working box (4101b) so that the semi-circular grooves (4102) of the two working boxes engage with the bearings, and start the air-drying process. The fan dries the aggregate in the drum storage tank (6205), and the third rotary motor (6203) is controlled to rotate repeatedly. After the free water on the surface of the aggregate is removed, the drum storage tank (6205) can be retracted and moved above the feed inlet (4001a). The third rotary motor (6203) is controlled to rotate the drum storage tank (6205) so that its rectangular opening (6205a) faces downward, so that the aggregate falls into the centrifugal dewatering machine (4001). The centrifugal dewatering machine is started to remove the internal moisture of the aggregate and reduce the humidity. Finally, the drum storage tank (6205) is moved to the discharge port (4001b) to collect the dewatered aggregate, completing the centrifugal dewatering process of the aggregate. After that, the aggregate can be transferred to the aggregate curing box (7000) for storage.

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