Crusher and recycled concrete system

Abstract

The crusher comprises a machine body, a support installed at the bottom end of the machine body, a supporting assembly rotationally connected to the support and supporting legs arranged in the supporting assembly, the supporting assembly comprises a first part, a second part and a third part, the first part is rotationally connected with the support, and the second part is rotationally connected with the third part; the second part and the third part are symmetrical about the first part, and the second part and the third part are connected to the first part. Due to the design of the dowel bar and the first spring in the mounting block and the gear connection between the supporting column and the fixing column, the crusher is excellent in performance when facing the uneven ground. Even if the supporting leg on one side firstly makes contact with the ground, and the distance between the supporting column and the support changes, effective transmission of force and normal operation of the supporting assembly can still be guaranteed through gear transmission and the action of the elastic piece, the device effectively adapts to various uneven operation sites, and the influence on use of the device due to limitation of ground conditions is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of concrete recycling, and in particular to a crusher and a recycled concrete system. Background Art

[0002] In the process of rapid development of the construction industry, more than 2 billion tons of construction waste are generated every year. If these construction wastes are not effectively handled, they will occupy a large amount of land resources. In addition, the landfill treatment of construction waste will also pollute the soil, groundwater, etc., affecting the ecological environment; by processing construction waste such as waste concrete into recycled aggregates for the production of recycled concrete, the pressure of construction waste on the environment can be effectively reduced and the recycling of resources can be achieved.

[0003] In the production of recycled concrete, the construction waste must first be crushed so that the recycled aggregate is between 0-20mm. Generally, a jaw crusher or a cone crusher is used. However, due to very violent vibrations during the operation of the crusher, the ground may collapse, which will cause the entire steady-state system of the equipment to be broken, such as the main shaft to shift, thus gradually reducing the service life of the entire equipment. Summary of the invention

[0004] The purpose of the present application is to provide a crusher and a recycled concrete system in order to improve the stability of the crusher during operation.

[0005] The present application provides a crusher adopting the following technical solution: comprising a body; A bracket, installed at the bottom of the machine body; A support assembly, the support assembly is rotatably connected to the bracket, the support assembly includes a first part, a second part and a third part, the first part is rotatably connected to the bracket, the second part and the third part are symmetrical about the first part, and the second part and the third part are connected to the first part, and the ends of the second part and the third part can abut against the bracket; A leg, wherein the leg is slidably connected to the second part and the third part, and the leg can move along with the rotation of the support assembly; When the ends of the second part and the third part abut against the bracket, the legs retract into the second part and the third part; when the support assembly rotates, the legs follow the rotation of the support assembly and move outward until the legs support the ground.

[0006] Optionally, the first part is communicated with the second part and the third part respectively, and the bracket is fixedly connected with a fixing column, which passes through two ends of the first part, and the fixing column is provided with a first spiral groove. The fixing column sleeve is provided with a first block, and the first block is slidably connected to the first spiral groove. The first block passes through a first rod, and both ends of the first rod are fixedly connected with mounting blocks, and a force transmission block is provided in the mounting block, and the force transmission block is rotatably connected to the support leg.

[0007] Optionally, a first column is fixedly connected inside the mounting block, and the force transmission block is slidably connected to the first column.

[0008] Optionally, the mounting block is provided with a force transmission rod, and the force transmission rod sleeve is provided with a first spring, the first spring forces the force transmission rod to be tight, the force transmission rod is divided into a first section and a second section, the first section is connected to the mounting block sliding key, the second section is provided with a threaded portion, the threaded portion is threadedly connected to a support column, and the fixed column and the support column are connected by a gear.

[0009] Optionally, the support column is provided with two annular protrusions, an annular gear is provided between the two annular protrusions, the two annular protrusions are respectively abutted on both sides of the annular gear, a number of elastic sheets are provided between the annular gear and the support column, the fixing column is fixedly connected with the first gear, and the first gear is meshed with the annular gear.

[0010] Optionally, the fixed column is provided with a second spiral groove, the pitch of the second spiral groove is greater than that of the first spiral groove, the fixed column is sleeved with a second block, the second block is slidingly connected with the second spiral groove, the first part is sleeved with a first sliding sleeve, and the first sliding sleeve is fixedly connected to the second block; the second part and the third part are both sleeved with a second sliding sleeve and a third sliding sleeve, the third sliding sleeve is connected to the first sliding sleeve through a connecting rod, the connecting rod is rotatably connected to the first sliding sleeve and the third sliding sleeve, the second sliding sleeve is fixedly connected to the support leg, and the ends of the second sliding sleeve and the third sliding sleeve are connected by a tension spring.

[0011] Optionally, a fixed block is fixedly connected inside the first part, a limiting rod is passed through the fixed block, the bracket is provided with a limiting hole, the limiting rod sleeve is provided with a second spring, the second spring forces the limiting rod to move downward, and when the support assembly rotates 90°, the limiting rod falls into the limiting hole under the action of the second spring.

[0012] A recycled concrete system comprises a crusher, a screening device, a cleaning and activation device, and a stirring device. Waste concrete blocks are first crushed by the crusher, and then the screening device is used to screen out recycled coarse aggregate and recycled fine aggregate. The recycled coarse aggregate and recycled fine aggregate enter the cleaning and activation device for cleaning and activation respectively. After activation, the recycled coarse aggregate and recycled fine aggregate enter the stirring device for stirring. During the stirring process, water, cement, sand and stone raw materials are added to realize the regeneration of concrete.

[0013] Optionally, the recycled coarse aggregate and the recycled fine aggregate are cleaned, spun and dried in the cleaning and activation device.

[0014] Optionally, the regenerated micropowder is mechanically ground in the cleaning and activation device to stimulate activity, the grinding time is 3 to 4 hours, and the ground regenerated micropowder is calcined to further stimulate activity, and the calcination temperature is controlled at 650 to 800°C.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The connection design between the force transmission block and the outrigger, the first rod, the mounting block and the first column can effectively distribute and transmit the load on the outrigger in the horizontal and vertical directions. For example, when the outrigger on one side is subjected to a large force, the horizontal force can be transmitted to the outrigger on the other side through the force transmission block and the first rod, thus preventing the fixing rod from bending due to excessive force on one side, greatly improving the stability and reliability of the entire support structure and ensuring that the crusher can still operate stably under complex working conditions; 2. Due to the design of the force transmission rod in the mounting block, the first spring, and the gear connection between the support column and the fixed column, the crusher performs well when facing uneven ground. Even if one side of the outrigger touches the ground first and the distance between the support column and the bracket changes, the gear transmission and the elastic sheet can still ensure the effective transmission of force and the normal operation of the support components, effectively adapting to various uneven working sites and reducing the impact of ground conditions on the use of equipment.

[0016] 3. The cooperation between the limit rod in the first part, the limit hole of the bracket and the second spring can reliably lock the outrigger position after the support assembly rotates 90°, preventing the support assembly from accidentally rotating during the operation of the equipment, and ensuring the safety of operation. At the same time, the connection between the second sliding sleeve and the tension spring at the end of the outrigger provides a locking force when the outrigger is extended to the ground, further enhancing the stability of the outrigger, and also playing a certain buffering and protective role on the outrigger, extending the service life of the outrigger and related components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 It is a schematic diagram of the overall structure of Example 2 of the present application; Figure 3 is a schematic diagram of the overall structure of the bracket in Example 2 of the present application; Figure 4 is a schematic diagram of the overall structure of the support assembly in Example 2 of the present application; Figure 5 is a schematic cross-sectional structure diagram of the support assembly in Example 2 of the present application; Figure 6 is a cross-sectional front view of the support assembly in Example 2 of the present application; Figure 7 It is a schematic diagram of the structure of the ring gear in Example 2 of the present application.

[0018] Description of reference numerals: 1. crusher; 11. machine body; 12. bracket; 13. support assembly; 131. first part; 132. second part; 133. third part; 134. leg; 1341. second sliding sleeve; 1342. third sliding sleeve; 1343. second block; 1344. first sliding sleeve; 1345. connecting rod; 1346. tension spring; 135. fixed shaft; 1351. second spiral groove; 1352. first spiral groove ; 136, limit rod; 1361, second spring; 1362, fixed block; 137, force transmission rod; 138, first block; 1381, first rod; 1382, mounting block; 1383, force transmission block; 1384, first column; 1385, first spring; 1386, first gear; 1387, ring gear; 1388, elastic sheet; 1389, support column; 2, screening device; 3, cleaning and activation device; 4, stirring device. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1 -Attached Figure 7 This application is described in further detail.

[0020] The embodiments of the present application disclose a crusher and a recycled concrete system.

[0021] Example 1, reference Figure 1 A recycled concrete system includes a crusher 1, a screening device 2, a cleaning and activation device 3, and a stirring device 4. First, waste concrete blocks are transported to the crusher 1 for crushing, and the crushed waste concrete blocks are transported to the screening device 2 through a conveyor belt. The screening device 2 screens the crushed waste concrete blocks into recycled coarse aggregate, recycled fine aggregate and recycled micro powder through a screen and vibration. The aperture of the coarse screen is 5 mm, and the aperture of the fine screen is 0.16 mm; the recycled coarse aggregate and the recycled fine aggregate are transported to different cleaning and activation devices 3 through a conveyor belt respectively; the cleaning and activation device 3 includes a recycled coarse aggregate cleaning tank, a recycled fine aggregate cleaning tank and a recycled micro powder activation box.

[0022] The recycled coarse aggregate is stirred and cleaned in the recycled coarse aggregate cleaning tank. After cleaning, it is dried by the centrifugal force provided by the motor. The water is thrown out from the centrifugal drying inner box and then discharged through the outlet. The recycled coarse aggregate after drying is dried by the drying blower and enters the mixing device from the discharge port.

[0023] The recycled fine aggregate is stirred and cleaned in the recycled fine aggregate cleaning tank. After cleaning, it is dried by the centrifugal force provided by the motor. The water is thrown out from the centrifugal drying inner box and then discharged through the outlet. The recycled fine aggregate after drying is dried by the drying blower and enters the mixing device from the outlet.

[0024] The regenerated micropowder is first mechanically ground by a gravity ball in a regenerated micropowder activation box to stimulate activity, and the grinding time is controlled to be 3 to 4 hours; after the grinding is completed, it is calcined to further stimulate activity, and the calcination temperature is 650 to 800°C.

[0025] After being activated by the cleaning and activating device 3, the recycled coarse aggregate, recycled fine aggregate and recycled micro powder enter the mixing device 4, and the recycled concrete is mixed evenly by stirring. During the stirring process, water, cement, sand, stone and other materials need to be added. In this way, the waste concrete is efficiently recycled and reused, and the original waste concrete is converted into recycled concrete with application value, which reduces the dependence on natural sand and stone resources, is conducive to alleviating the pressure of resource shortage, and promotes the sustainable development of the construction industry.

[0026] The strength of recycled concrete satisfies the following formula: ; In the formula, x represents the dosage of recycled fine aggregate; y represents the dosage of recycled coarse aggregate; z represents the dosage of recycled micro powder; fce represents the actual strength of added cement, MPa; C represents the total dosage of cement and recycled micro powder per cubic meter of recycled concrete, kg; W represents the amount of water used in per cubic meter of recycled concrete, kg; A and B represent empirical coefficients, crushed stone: A=0.46, B=0.07, pebbles: A=0.48, B=0.33, when recycled coarse aggregate and / or recycled fine aggregate are added, A=0.46 and B=0.07 are selected.

[0027] Example 2, reference Figure 2 and Figure 3 A crusher 1 includes a body 11, a bracket 12 installed at the bottom of the body 11, a support assembly 13 rotatably connected to the bracket 12, and a support leg 134 arranged in the support assembly 13, the support assembly 13 includes a first part 131, a second part 132 and a third part 133, the first part 131 is rotatably connected to the bracket 12, the second part 132 and the third part 133 are symmetrical about the first part 131, and the second part 132 and the third part 133 are connected to the first part 131, the second part 132 and the third part 133 are connected to the first part 131, and the second part 132 and the third part 133 are connected to the first part 131. The end of 33 can abut the bracket 12, the second part 132 and the third part 133 are inclined, and in Example 2, the first part 131 is a cylindrical tube, and the second part 132 and the third part 133 are square tubes; in the initial state, the ends of the second part 132 and the third part 133 are in abutment with the bracket 12, and the support leg 134 is completely retracted inside the second part 132 and the third part 133; when the support assembly 13 is rotated 90°, the support leg 134 moves outward along the second part 132 and the third part 133 until it abuts the ground.

[0028] refer to Figure 4 and Figure 5The bracket 12 is fixedly connected with a fixing column, which runs through both ends of the first part 131, and the fixing column is provided with a first spiral groove 1352, and the fixing column sleeve is provided with a first block 138, and the leg 134 is rotatably connected to the first block 138, and the first block 138 is slidably connected to the first spiral groove 1352, so that the first block 138 can rotate with the support assembly 13, and under the restriction of the first spiral groove 1352, the first block 138 can move up and down, thereby pushing the leg 134 to move in the second part 132 / third part 133; the first block 138 runs through a first rod 1381, and both ends of the first rod 1381 are fixedly connected with mounting blocks 1382, a force transmission block 1383 is provided in the mounting block 1382, and the force transmission block 1383 is rotatably connected to the support leg 134, so that the horizontal load on the support leg 134 on one side can be transmitted to the other side; for example, when the support leg 134 in the second part 132 is subjected to a relatively large load, the force will be transmitted to the force transmission block 1383 along the direction of the support leg 134, and the load force on the force transmission block 1383 can be seen to have two components in the vertical direction and the horizontal direction. The component in the horizontal direction will be transmitted to the support leg 134 on the other side along the first rod 1381, so that the fixing rod will not be subjected to the load in the horizontal direction and thus bend.

[0029] refer to Figure 5 and Figure 6 The first column 1384 is fixedly connected to the mounting block 1382, the force transmission block 1383 is slidably connected to the first column 1384, and the mounting block 1382 is penetrated by a force transmission rod 137, and the force transmission rod 137 is sleeved with a first spring 1385. The first spring 1385 forces the force transmission rod 137 to press tightly, so that the legs 134 on both sides do not interfere with each other during the rotation of the support assembly 13. For example, when the legs 134 on one side abut against the outside, the mounting block 1382 can continue to move downward. When the force transmission block 1383 is moved on the first column 1384, the support leg 134 and the mounting block 1382 on this side still have space to move, thereby avoiding affecting the movement of the support leg 134 on the other side. The first spring 1385 is equivalent to a preload force established between the support leg 134 and the mounting block 1382. When the preload force between the support leg 134 and the mounting block 1382 exceeds the elastic force of the spring, it indicates that the support leg 134 on this side has come into contact with the outside world.

[0030] refer to Figure 6 and Figure 7The force transmission rod 137 is divided into a first section and a second section. The first section is connected to the mounting block 1382 with a sliding key, and the second section is provided with a threaded portion, which is threadedly connected to a support column 1389. Under the action of the first section, the force transmission rod 137 can realize vertical movement, and the support column 1389 can transmit the vertical component of the force transmission block 1383 to the bracket 12. The fixed column and the support column 1389 are connected by gears. When the support assembly 13 rotates, the support column 1389 rotates through the gears, so that the support column 1389 can move on the force transmission rod 137 to abut the bracket 12, and transmit the vertical force received by the support leg 134 to the bracket 12. The support column 1389 is provided with two annular protrusions, and an annular gear 1387 is provided between the two annular protrusions. The two sides of the annular gear 1387 are respectively abutted against the two annular protrusions. A plurality of elastic sheets 1388 are provided between the annular gear 1387 and the support column 1389. The fixing column is fixedly connected with a first gear 1386, and the first gear 1386 is meshed with the annular gear 1387. Due to the unevenness of the external level, the support leg 134 on one side will touch the ground first, so that under the action of the force transmission, the distance between the support column 1389 and the bracket 12 changes, so as to guide This causes the distances between the support columns 1389 on both sides and the bracket 12 to be different. When there is a distance between the support columns 1389 and the bracket 12, the support columns 1389 are rotated and moved upward through the engagement of the first gear 1386 and the ring gear 1387; when the support columns 1389 abut against the bracket 12, a large force will exist between the first gear 1386 and the ring gear 1387, and this force will cause the elastic sheet 1388 to bend, causing the ring gear 1387 to be eccentric, so that the ring gear 1387 can bypass the first gear 1386 to achieve avoidance.

[0031] refer to Figure 6 The fixed column is provided with a second spiral groove 1351, and the pitch of the second spiral groove 1351 is greater than that of the first spiral groove 1352. The fixed column is sleeved with a second block 1343, and the second block 1343 is slidably connected with the second spiral groove 1351. The first part 131 is sleeved with a first sliding sleeve 1344, and the first sliding sleeve 1344 is fixedly connected with the second block 1343; the second part 132 and the third part 133 are both sleeved with a second sliding sleeve 1341 and a third sliding sleeve 1342, and the third sliding sleeve 1342 is connected to the first sliding sleeve 1344 through a connecting rod 1345, and the connecting rod 1345 is rotatably connected to the first sliding sleeve 1344 and the third sliding sleeve 1342, the second sliding sleeve 1341 is fixedly connected to the support leg 134, and the ends of the second sliding sleeve 1341 and the third sliding sleeve 1342 are connected through a tension spring 1346. When the support assembly 13 rotates at the same angle, the third sliding sleeve 1342 moves a greater distance than the second sliding sleeve 1341 , so that the tension spring 1346 is extended, so that the supporting leg 134 is subjected to a locking force when it abuts against the ground.

[0032] refer to Figure 6 A fixing block 1362 is fixedly connected inside the first part 131, and a limiting rod 136 is penetrated by the fixing block 1362. The bracket 12 is provided with a limiting hole, and the limiting rod 136 is sleeved with a second spring 1361. The second spring 1361 forces the limiting rod 136 to move downward. When the support assembly 13 rotates 90°, the limiting rod 136 falls into the limiting hole under the action of the second spring 1361. When the limiting rod 136 is pulled upward, the rotation restriction of the support assembly 13 is released.

[0033] Working principle: When the crusher 1 is working, the ends of the second part 132 and the third part 133 are in contact with the bracket 12 in the initial state, and the legs 134 are retracted therein. When the state needs to be changed, the support assembly 13 starts to rotate. Since the fixed column passes through the first part 131 and is provided with a first spiral groove 1352, the first block 138 sleeved on the fixed column slides in the first spiral groove 1352 and moves up and down under the rotation of the support assembly 13, pushing the legs 134 rotatably connected thereto to move outward in the inclined second part 132 and the third part 133. The force transmission block 1383 in the mounting block 1382 is rotatably connected to the support leg 134 and is slidably connected to the first column 1384 fixedly connected to the mounting block 1382. The force transmission rod 137 passes through the mounting block 1382 and is sleeved with a first spring 1385. The first section of the force transmission rod 137 is connected to the mounting block 1382 with a sliding key, and the second section is threadedly connected to the support column 1389. The fixed column and the support column 1389 are connected by gears. When one side of the support leg 134 is subjected to a large load, the force is decomposed and transmitted through the force transmission block 1383. When the support assembly 13 rotates, the gear action causes the support column 1389 to rotate and move to abut the bracket 12 to transmit the vertical force. When the support leg 134 touches the ground first due to unevenness in the outside world, causing the spacing of the support column 1389 to change, the first gear 1386 engages with the ring gear 1387 to enable the support column 1389 to rotate and move upward. When abutting, the elastic sheet 1388 bends to cause the ring gear 1387 to eccentrically avoid. The second spiral groove 1351 of the fixed column is in sliding connection with the second block 1343, the first sliding sleeve 1344 of the first part 131 moves with the second block 1343, the second sliding sleeve 1341 of the second part 132 and the third part 133 is connected with the tension spring 1346 at the end of the leg 134, the support assembly 13 rotates to stretch the tension spring 1346 so that the leg 134 has a locking force when it touches the ground. When the support assembly 13 rotates 90°, the limiting rod 136 on the fixed block 1362 in the first part 131 falls into the limiting hole of the bracket 12 under the action of the second spring 1361 and is locked, and the limiting rod 136 is pulled upward to release the rotation restriction.

[0034] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crusher, characterized in that: include Body (11); A bracket (12) mounted on the bottom end of the machine body (11); A support assembly (13), the support assembly (13) being rotatably connected to the bracket (12), the support assembly (13) comprising a first portion (131), a second portion (132) and a third portion (133), the first portion (131) being rotatably connected to the bracket (12), the second portion (132) and the third portion (133) being symmetrical with respect to the first portion (131), and the second portion (132) and the third portion (133) being connected to the first portion (131), and ends of the second portion (132) and the third portion (133) being capable of abutting against the bracket (12); A support leg (134), the support leg (134) being slidably connected to the second part (132) and the third part (133), and the support leg (134) being capable of moving along with the rotation of the support assembly (13); When the ends of the second part (132) and the third part (133) abut against the bracket (12), the legs (134) retract into the second part (132) and the third part (133); when the support assembly (13) rotates, the legs (134) rotate with the support assembly (13) and move outward until the legs (134) support the ground.

2. The crusher according to claim 1, characterized in that: The first part (131) is communicated with the second part (132) and the third part (133) respectively; the bracket (12) is fixedly connected with a fixing column, the fixing column passes through two ends of the first part (131); the fixing column is provided with a first spiral groove (1352); the fixing column sleeve is provided with a first block (138); the first block (138) is slidably connected to the first spiral groove (1352); a first rod (1381) passes through the first block (138); the first rod (1381) is fixedly connected with mounting blocks (1382) at both ends; a force transmission block (1383) is provided in the mounting block (1382); the force transmission block (1383) is rotatably connected to the support leg (134).

3. The crusher according to claim 2, characterized in that: The mounting block (1382) is fixedly connected with a first column (1384), and the force transmission block (1383) is slidably connected to the first column (1384).

4. The crusher according to claim 3, characterized in that: The mounting block (1382) is provided with a force transmission rod (137) extending therethrough, the force transmission rod (137) being sleeved with a first spring (1385), the first spring (1385) forcing the force transmission rod (137) to be pressed tightly, the force transmission rod (137) being divided into a first section and a second section, the first section being connected to the mounting block (1382) with a sliding key, the second section being provided with a threaded portion, the threaded portion being threadedly connected to a support column (1389), and the fixed column and the support column (1389) being connected via a gear.

5. The crusher according to claim 4, characterized in that: The support column (1389) is provided with two annular protrusions, an annular gear (1387) is provided between the two annular protrusions, two sides of the annular gear (1387) respectively abut against the two annular protrusions, a plurality of elastic sheets (1388) are provided between the annular gear (1387) and the support column (1389), and the fixing column is fixedly connected with the first gear (1386), and the first gear (1386) is meshed with the annular gear (1387).

6. The crusher according to claim 5, characterized in that: The fixing column is provided with a second spiral groove (1351), the pitch of the second spiral groove (1351) is greater than that of the first spiral groove (1352), the fixing column is sleeved with a second block (1343), the second block (1343) is slidably connected with the second spiral groove (1351), the first part (131) is sleeved with a first sliding sleeve (1344), the first sliding sleeve (1344) is fixedly connected with the second block (1343); the second part (132) and the third part (133) are both sleeved with The second sliding sleeve (1341) and the third sliding sleeve (1342), the third sliding sleeve (1342) and the first sliding sleeve (1344) are connected via a connecting rod (1345), the connecting rod (1345) and the first sliding sleeve (1344) and the third sliding sleeve (1342) are all rotatably connected, the second sliding sleeve (1341) and the support leg (134) are fixedly connected, and the ends of the second sliding sleeve (1341) and the third sliding sleeve (1342) are connected via a tension spring (1346).

7. The crusher according to claim 6, characterized in that: A fixing block (1362) is fixedly connected inside the first part (131), a limiting rod (136) is penetrated through the fixing block, the bracket (12) is provided with a limiting hole, the limiting rod (136) is sleeved with a second spring (1361), the second spring (1361) forces the limiting rod (136) to move downward, and when the support assembly (13) rotates 90 degrees, the limiting rod (136) falls into the limiting hole under the action of the second spring (1361).

8. A recycled concrete system, characterized in that: The invention comprises a crusher (1), a screening device (2), a cleaning and activation device (3), and a stirring device (4). The waste concrete blocks are first crushed by the crusher (1), and then the screening device (2) is used to screen out recycled coarse aggregate, recycled fine aggregate, and recycled fine powder. The recycled coarse aggregate, recycled fine aggregate, and recycled fine powder are respectively sent to the cleaning and activation device (3) for cleaning and activation. After activation, the recycled coarse aggregate, recycled fine aggregate, and recycled fine powder are sent to the stirring device (4) for stirring. During the stirring process, water, cement, sand, and stone raw materials are added to realize the regeneration of concrete.

9. The recycled concrete system according to claim 8, characterized in that: The recycled coarse aggregate and the recycled fine aggregate are cleaned, spun and dried in the cleaning and activation device (3).

10. The recycled concrete system according to claim 9, characterized in that: The regenerated micropowder is mechanically ground in the cleaning and activation device (3) to activate the activity. The grinding time is 3 to 4 hours. The ground regenerated micropowder is calcined to further activate the activity. The calcination temperature is controlled at 650 to 800°C.

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