Recycled concrete high-precision aggregate batching equipment

Abstract

The utility model relates to recycled concrete high-precision aggregate batching equipment, and relates to the field of recycled concrete preparation, the recycled concrete high-precision aggregate batching equipment comprises a stock bin, a support and a stirring tank, the stock bin is fixedly connected with the support, the stock bin is located above the stirring tank, a discharging pipe is arranged at the lower end of the stock bin, and a switch device is arranged at the lower end of the discharging pipe; a rotary disc with the axis arranged in the vertical direction is arranged below the discharging pipe, a plurality of weighing devices are evenly and fixedly arranged on the upper end face of the rotary disc in the circumferential direction, the weighing devices are fixedly connected with a transfer tank, a driving device used for driving the rotary disc to rotate is arranged below the rotary disc, and a batching pipe is arranged at the lower end of the transfer tank and provided with a valve. An aggregate feeding pipe is arranged at the upper end of the stirring tank, the lower end face of the batching pipe and the upper end face of the aggregate feeding pipe are located on the same plane, a cover plate rotationally connected with the stirring tank along the vertical axis is arranged on the upper end face of the aggregate feeding pipe, and a sealing cover is arranged at the lower end of the batching pipe and used for controlling discharging of the batching pipe. The method has the effect of improving the precision of aggregate batching.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of recycled concrete preparation, and particularly relates to a high-precision aggregate batching equipment for recycled concrete. BACKGROUND

[0002] At present, the wide application of recycled concrete in the modern construction industry not only helps to effectively utilize resources, but also significantly reduces environmental pollution and production costs. With the enhancement of environmental awareness and the progress of technology, the quality control of recycled concrete, especially the precise batching of aggregates, is increasingly valued. Reasonable aggregate batching not only improves the overall performance of recycled concrete, but also ensures its reliability and durability in various engineering.

[0003] In existing aggregate batching equipment, a common solution is to use a high degree of automation screw feeder and a quantitative belt scale, and to control the discharge amount of aggregates by setting fixed parameters.

[0004] Although the above method can meet the demand of aggregate batching to some extent, the above method still needs to consider the drop amount of each batching when batching and metering, and the metering process is relatively troublesome and has a large error. CONTENT OF THE INVENTION

[0005] In order to improve the precision of aggregate batching, the present application provides a high-precision aggregate batching equipment for recycled concrete.

[0006] The present application provides a high-precision aggregate batching equipment for recycled concrete, which adopts the following technical solution:

[0007] A high-precision aggregate batching equipment for recycled concrete, comprising a stock bin, a support and a mixing tank, the stock bin is fixedly connected with the support, the stock bin is located above the mixing tank, the lower end of the stock bin is provided with a discharge pipe, the lower end of the discharge pipe is provided with an opening and closing device, a turntable with an axis arranged along the vertical direction is arranged below the discharge pipe, a plurality of weighing devices are uniformly and fixedly arranged on the upper end surface of the turntable in the circumferential direction, the weighing devices are fixedly connected with a transfer tank, a driving device for driving the turntable to rotate is arranged below the turntable, a batching pipe is arranged at the lower end of the transfer tank, a valve is arranged on the batching pipe, an aggregate feeding pipe is arranged at the upper end of the mixing tank, the lower end surface of the batching pipe and the upper end surface of the aggregate feeding pipe are in the same plane, a cover plate is arranged at the upper end surface of the aggregate feeding pipe and is rotatably connected with the mixing tank along the vertical axis, a cover is arranged at the lower end of the batching pipe, and the cover is used to control the discharge of the batching pipe.

[0008] By adopting the technical scheme, the recycled concrete high-precision aggregate batching equipment can realize precise control of the entry and exit of the aggregate, and ensure the weight consistency of each batch of aggregate. The switch device is used to control the opening and closing of the discharge pipe. The weighing device can accurately measure each batch, improving the overall precision of the batching. The use of multiple weighing devices on the turntable and the transfer tank realizes a continuous and efficient aggregate weighing process, improving the working efficiency and production capacity of the equipment. The position design of the batching pipe and the aggregate feeding pipe ensures the smooth entry of the aggregate into the mixing tank, reducing spillage and waste. The design of the cover plate prevents the aggregate from being thrown out of the mixing tank due to stirring during the batching process, further improving the controllability of the batching process. The valve is used to control the opening and closing of the batching pipe, and the cover is used to block the opening at the lower end of the batching pipe to prevent the aggregate remaining on the inner wall of the batching pipe below the valve from falling off during the rotation of the turntable, reducing material waste and pollution risk.

[0009] Optionally, the cover plate side wall is uniformly provided with a plurality of upper and lower through sliding grooves in the circumferential direction, and the lower end of the batching pipe is slidingly connected with the cover plate in the sliding groove.

[0010] By adopting the above technical scheme, the rotation of the turntable drives the batching pipe into the sliding groove, thereby driving the cover plate to rotate, realizing the opening and closing of the aggregate feeding pipe, and improving the operation convenience and automation degree of the equipment.

[0011] Optionally, the upper end face of the mixing tank is fixedly provided with a push cover pneumatic cylinder, the telescopic end of the push cover pneumatic cylinder is fixedly connected with a push block, one end of the push block away from the axis of the push cover pneumatic cylinder is provided with a multi-prism slidingly connected with the push block in the vertical direction, the lower end face of the multi-prism is fixedly connected with a push rod, the upper end of the multi-prism is fixedly connected with a positioning plate, the positioning plate is located above the push block, a spring is arranged between the upper end face of the push rod and the lower end face of the push block, the spring is sleeved outside the multi-prism, and the side wall of the sliding groove close to the multi-prism is an inclined surface.

[0012] By adopting the above technical scheme, the push cover pneumatic cylinder can accurately control the movement of the push block, and then accurately adjust the position of the push rod. The inclined surface design of the multi-prism and the sliding groove ensures that the push rod can smoothly enter the sliding groove and move smoothly in the sliding groove, thereby pushing the cover to open the lower end outlet of the batching pipe. The design of the spring not only provides the power for the upward resetting of the push rod, but also increases the stability of the system, avoiding the situation that the push rod is separated from the sliding groove due to external vibration. This structure design improves the operation convenience and automation degree of the equipment, and ensures the sealing of the aggregate during the batching process, reducing environmental pollution and material waste.

[0013] Optionally, the switch device comprises a first gear, a second gear, a first external gear block, a second external gear block and a baffle, the baffle is fixedly connected to the lower end surface of the first gear, the first gear and the second gear are both rotationally connected to the support along the vertical axis, the baffle is provided with a through hole penetrating upward and downward, the thickness of the first gear is greater than that of the second gear, the upper part of the first gear is engaged with the second gear, the lower part of the first gear is engaged with the first external gear block, the first external gear block is located below the second gear, the first external gear block is coaxially fixedly connected to the upper end surface of the rotating disc, the second gear is engaged with the second external gear block, and the first external gear block is coaxially fixedly connected with the second external gear block.

[0014] By adopting the above technical scheme, the switch device can accurately control the opening and closing state of the discharge pipe, thereby realizing effective management of the aggregate flow. Specifically, the design that the first external gear block drives the first gear to rotate and the second external gear block drives the second gear to rotate enables the baffle to stably rotate in the vertical direction, thereby ensuring that the through hole is accurately connected or offset with the position of the discharge pipe, and avoiding the problem of material leakage.

[0015] Optionally, the support is rotationally connected with two rotating rods, the upper end surfaces of the two rotating rods are fixedly connected with a limiting plate, the lower ends of the two rotating rods are coaxially fixedly connected with the first gear and the second gear respectively, the lower end of the baffle is provided with a supporting plate, the supporting plate is fixedly connected with the support, the upper end surface of the supporting plate is abutted with the lower end surface of the baffle, and the baffle is rotationally connected with the supporting plate along the axis of the first gear.

[0016] By adopting the above technical scheme, the two rotating rods and the limiting plate rotationally connected with the support can effectively limit the positions of the first gear and the second gear, ensuring the stability in the transmission process; the cooperation of the supporting plate and the baffle not only can support the baffle, but also can provide a stable fulcrum when the baffle rotates, further ensuring the reliability and accuracy of the switch device.

[0017] Optionally, the lower end of the rotating disc is provided with a fixed table, the rotating disc is rotationally connected with the fixed table along the axis thereof, the driving device comprises an internal gear ring, a driving gear and a driving motor, the internal gear ring is coaxially fixedly connected to the lower end surface of the rotating disc, the internal gear ring is meshingly connected with the driving gear, the driving motor is fixedly connected to the lower end surface of the fixed table, and the output end of the driving motor is fixedly connected with the driving gear through the rotating disc.

[0018] By adopting the above technical scheme, the rotating disc can stably and accurately rotate, ensuring that each weighing device is sequentially positioned below the discharge pipe for accurate batching. The design of the fixed table and the internal gear ring makes the power transmission of the driving motor more reliable, improving the overall operation stability of the equipment. The driving motor directly drives the driving gear to rotate, thereby driving the rotating disc to rotate, simplifying the transmission structure, reducing the failure rate and improving the work efficiency.

[0019] Optionally, the upper end surface of the fixed table is coaxially fixedly connected with a rotating shaft, the upper end of the rotating shaft penetrates the rotating disc, the upper end of the rotating shaft is fixedly connected with a pressing block, the lower end surface of the pressing block abuts against the upper end surface of the rotating disc, the lower end of the rotating disc is provided with a supporting ring, the upper end surfaces of the supporting ring and the lower end surface of the fixed table both abut against the lower end surface of the rotating disc, the upper end surface of the fixed table is provided with a mounting groove, and the inner gear ring and the driving gear are both located in the mounting groove.

[0020] By adopting the above technical scheme, the design of the rotating shaft and the pressing block enables the rotating disc to maintain good balance and stability during rotation, thereby avoiding batching errors caused by shaking. The supporting ring further enhances the overall rigidity of the structure, preventing the rotating disc from deforming under high-speed rotation or heavy load, and ensuring the long-term operation reliability of the equipment.

[0021] Optionally, the shaft spacing between the stirring tank and the bin is equal to the shaft spacing between two adjacent intermediate tanks.

[0022] By adopting the above technical scheme, simultaneous feeding from the bin to the intermediate tank and from the intermediate tank to the stirring tank is realized, improving the precision and efficiency of aggregate batching.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Multiple weighing devices on the rotating disc enable accurate measurement of each batching, improving the overall precision of batching; the position design of the batching pipe and the aggregate feeding pipe ensures smooth entry of aggregate into the stirring tank, reducing spillage and waste; the design of the cover plate prevents aggregate from being thrown out of the stirring tank due to stirring, further improving the controllability of the batching process; the valve is used to control the opening and closing of the batching pipe, and the cover is used to block the lower end opening of the batching pipe, preventing aggregate remaining on the inner wall of the batching pipe below the valve from falling off during rotation of the rotating disc, reducing material waste and pollution risk;

[0025] 2. The rotating disc drives the batching pipe into the chute, thereby rotating the cover plate driven by the batching pipe, achieving opening and closing of the aggregate feeding pipe, improving the operation convenience and automation level of the equipment;

[0026] 3. The use of multiple weighing devices on the rotating disc and intermediate tanks realizes a continuous and efficient aggregate weighing process, improving the working efficiency and production capacity of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of a high-precision aggregate batching equipment for recycled concrete.

[0028] Figure 2 is a schematic diagram of the structure of the switching device.

[0029] Figure 3 is a structural diagram of the cover plate.

[0030] Figure 4 is Figure 3 is an enlarged schematic view of part A in figure 6.

[0031] Figure 5 is a structural diagram of the high-precision recycled concrete aggregate batching equipment from the top.

[0032] Figure 6 is a structural diagram of the fixed table and driving device.

[0033] The reference signs are as follows: 1, hopper; 11, discharge pipe; 2, support; 21, rotating rod; 22, limiting plate; 23, supporting plate; 3, stirring tank; 31, aggregate feeding pipe; 32, cover plate; 321, chute; 322, inclined surface; 33, push cover cylinder; 34, push block; 35, multi-prism; 351, positioning plate; 36, push rod; 37, spring; 4, switch device; 41, first gear; 42, second gear; 43, first external tooth block; 44, second external tooth block; 45, baffle; 451, through opening; 5, rotating disc; 51, weighing device; 52, transfer tank; 521, batching pipe; 522, valve; 523, cover; 53, driving device; 531, inner tooth ring; 532, driving gear; 533, driving motor; 6, fixed table; 61, rotating shaft; 62, pressing block; 63, mounting groove; 7, supporting ring. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to all the drawings.

[0035] The application discloses a high-precision recycled concrete aggregate batching equipment.

[0036] With reference to Figure 1 The high-precision recycled concrete aggregate batching equipment comprises a hopper 1, a support 2 and a stirring tank 3. Aggregate prepared by a crusher is temporarily stored in the hopper 1 through a screening machine and a conveying belt, and the stirring tank 3 is used for stirring and mixing various raw materials to generate recycled concrete. The hopper 1 is fixedly connected with the support 2, the hopper 1 is located above the stirring tank 3, and the lower end of the hopper 1 is provided with a discharge pipe 11. A rotating disc 5 with an axis arranged along the vertical direction is arranged below the discharge pipe 11, a plurality of weighing devices 51 are uniformly and fixedly arranged on the upper end surface of the rotating disc 5 in the circumferential direction, and the weighing devices are used for weighing the weight of aggregate in the transfer tank 52. The weighing device 51 is fixedly connected with the transfer tank 52, and the lower portion of the rotating disc 5 is provided with a driving device 53 for driving the rotating disc 5 to rotate. The axial spacing between the stirring tank 3 and the hopper 1 is equal to the axial spacing between two adjacent transfer tanks 52, so that the feeding from the hopper 1 to the transfer tank 52 and the feeding from the transfer tank 52 to the stirring tank 3 can be simultaneously performed, and the precision and efficiency of aggregate batching are improved.

[0037] With reference to Figure 1 and Figure 2 , the lower end of the discharge pipe 11 is provided with a switch device 4 for controlling the opening and closing of the discharge pipe 11, which includes a first gear 41, a second gear 42, a first external tooth block 43, a second external tooth block 44 and a baffle plate 45. The baffle plate 45 is fixedly connected to the lower end surface of the first gear 41, and a through hole 451 is formed in the baffle plate 45, through which the aggregate in the stock bin 1 enters the transfer tank 52 through the discharge pipe 11. The thickness of the first gear 41 is greater than that of the second gear 42, the upper part of the first gear 41 is engaged with the second gear 42, the lower part of the first gear 41 is engaged with the first external tooth block 43, the first external tooth block 43 is located below the second gear 42, the second gear 42 is engaged with the second external tooth block 44, the first external tooth block 43 is coaxially fixedly connected with the second external tooth block 44, and the axis of the second gear 42 is located between the axis of the first gear 41 and the axis of the turntable 5. Both the first gear 41 and the second gear 42 are rotationally connected to the support 2 along the vertical axis, and the first external tooth block 43 is coaxially fixedly connected to the upper end surface of the turntable 5. The rotation of the turntable 5 drives the synchronous rotation of the first external tooth block 43 and the second external tooth block 44, first, the first external tooth block 43 drives the rotation of the first gear 41, thereby driving the rotation of the baffle plate 45, so that the through hole 451 is in communication with the discharge pipe 11, and the turntable 5 continues to rotate, the first external tooth block 43 is disengaged from the first gear 41, the second external tooth block 44 drives the rotation of the second gear 42, the second gear 42 drives the reverse rotation of the first gear 41, and the baffle plate 45 is reset to block the outlet of the discharge pipe 11.

[0038] With reference to Figure 1 and Figure 2 , the support 2 is rotationally connected with two rotating rods 21, the upper end surface of the two rotating rods 21 is fixedly connected with a limiting plate 22, the lower end of the two rotating rods 21 is coaxially fixedly connected with the first gear 41 and the second gear 42 respectively, the lower end of the baffle plate 45 is provided with a supporting plate 23, the supporting plate 23 is fixedly connected with the support 2, the upper end surface of the supporting plate 23 is in abutment with the lower end surface of the baffle plate 45, and the baffle plate 45 is rotationally connected with the supporting plate 23 along the axis of the first gear 41. The limiting plate 22 can prevent the first gear 41 and the second gear 42 from falling downward, and the supporting plate 23 can support the baffle plate 45, and the two together ensure the stability of the switch device 4.

[0039] With reference to Figure 1The lower end of the transfer tank 52 is provided with a batching pipe 521, and the batching pipe 521 is provided with a valve 522. The valve 522 is used to control the opening and closing of the batching pipe 521. The valve 522 is an electromagnetic valve, which can be automatically opened and closed according to the production situation on the spot, without manual operation. The lower end of the batching pipe 521 is provided with a cover 523. The cover 523 is used to block the opening at the lower end of the batching pipe 521, so as to control the discharge of the batching pipe 521, prevent the aggregate remaining on the inner wall of the batching pipe 521 below the valve 522 from falling off when the turntable 5 rotates, and reduce the waste of materials and the risk of pollution.

[0040] With reference to Figure 1 The upper end of the stirring tank 3 is provided with an aggregate feeding pipe 31. The stirring tank 3 is internally provided with a stirring device. The lower end of the stirring tank 3 is provided with a stirring motor. The side wall of the stirring tank 3 is provided with an inlet for adding cement, water and other raw materials for making concrete. The lower end of the side wall of the stirring tank 3 is provided with a discharge door. The uniformly stirred concrete is discharged from the discharge door. The lower end surface of the batching pipe 521 is in the same plane as the upper end surface of the aggregate feeding pipe 31. The upper end surface of the aggregate feeding pipe 31 is provided with a cover plate 32 connected to the stirring tank 3 along a vertical axis. The cover plate 32 is used to prevent the aggregate from being thrown out of the stirring tank 3 due to stirring during batching.

[0041] With reference to Figure 3 and Figure 4 The side wall of the cover plate 32 is uniformly provided with a plurality of upper and lower through sliding grooves 321 in the circumferential direction. The turntable 5 drives the batching pipe 521 to enter the sliding groove 321. When the batching pipe 521 drives the cover plate 32 to rotate, the lower end of the batching pipe 521 slides along the inner wall of the sliding groove 321 in the sliding groove 321. The opening and closing of the aggregate feeding pipe 31 are realized, and the operation convenience and automation degree of the equipment are improved.

[0042] With reference to Figure 3 and Figure 4, the upper end surface of the stirring tank 3 is fixedly provided with a push cover cylinder 33, the telescopic end of the push cover cylinder 33 is fixedly connected with a push block 34, the end of the push block 34 away from the axis of the push cover cylinder 33 is provided with a multi-prism 35 which is slidingly connected with the push block 34 in the vertical direction, the lower end surface of the multi-prism 35 is fixedly connected with a push rod 36, the upper end of the multi-prism 35 is fixedly connected with a positioning plate 351 which is located above the push block 34, and the multi-prism 35 can prevent the push rod 36 from rotating. The side wall of the chute 321 close to the multi-prism 35 is an inclined surface 322, and a gap for the sliding of the multi-prism 35 is left between the inclined surface 322 and the side wall of the aggregate feeding pipe 31, a spring 37 is arranged between the upper end surface of the push rod 36 and the lower end surface of the push block 34, and the spring 37 is sleeved outside the multi-prism 35. In the initial state, the cover plate 32 blocks the aggregate feeding port at the position where the chute 321 is not opened, and the lower end surface of the push rod 36 is in close abutment with the upper end surface of the cover plate 32 under the action of the spring 37. With the rotation of the rotating disc 5, after the lower end of the feeding pipe 521 is inserted into the chute 321, the side wall of the chute 321 opposite to the inclined surface 322 abuts against the outer wall of the feeding pipe 521, the feeding pipe 521 slides in the chute 321 until the feeding port of the feeding pipe 521 and the feeding port of the aggregate feeding pipe 31 are coaxially communicated, at this time, the push rod 36 slides from the upper end surface of the cover plate 32 to above the chute 321, under the positioning action of the positioning plate 351, the lower end surface of the positioning plate 351 abuts against the upper end surface of the push block 34, and the multi-prism 35 slides downward under the action of the spring 37, the push rod 36 enters the chute 321 under the action of the spring 37 and is located between the lower end surface of the cover plate 32 and the upper end surface of the cover 523 in the vertical direction. The push cover cylinder 33 drives the push block 34 and the push rod 36 to move toward the cover 523, the push rod 36 drives the cover 523 to open the lower end opening of the feeding pipe 521. After the feeding operation is completed, the valve 522 is closed first, then the push rod 36 reversely slides, the cover 523 returns to the original position to reseal the lower end opening of the feeding pipe 521, the rotating disc 5 rotates, the push rod 36 slides along the inclined surface 322 to the upper end surface of the cover plate 32, and the feeding pipe 521 is separated from the chute 321.

[0043] With reference to Figure 3 and Figure 4 , the reset device of the cover 523 can be an elastic member arranged on the side of the cover 523 close to the axis of the rotating disc 5, and a connecting plate arranged on the outer wall of the feeding pipe 521, in the initial state, the cover 523 completely seals the lower end opening of the feeding pipe 521. A support plate fixedly connected with the feeding pipe 521 is arranged below the side of the cover 523 close to the axis of the rotating disc 5, for supporting and guiding the sliding of the cover 523.

[0044] With reference to Figure 5 and Figure 6The lower end of the rotating disc 5 is provided with a fixed table 6, and the lower end of the fixed table 6 is supported by a plurality of supporting legs. The rotating disc 5 is rotationally connected to the fixed table 6 along the axis thereof, and the driving device 53 comprises an inner tooth ring 531, a driving gear 532 and a driving motor 533. The inner tooth ring 531 is coaxially fixedly connected to the lower end face of the rotating disc 5, and is in meshing connection with the driving gear 532. An installation groove 63 is formed in the upper end face of the fixed table 6, and the inner tooth ring 531 and the driving gear 532 are both located in the installation groove 63, and the outer wall of the inner tooth ring 531 abuts against the side wall of the installation groove 63. The driving motor 533 is fixedly connected to the lower end face of the fixed table 6, and the output end of the driving motor 533 is fixedly connected to the driving gear 532 through the rotating disc 5.

[0045] With reference to Figure 1 and Figure 5 The lower end of the rotating disc 5 is provided with a supporting ring 7, and the lower end of the supporting ring 7 is also provided with supporting legs. The upper end face of the supporting ring 7 and the lower end face of the fixed table 6 both abut against the lower end face of the rotating disc 5, and the inner wall of the supporting ring 7 is located between the outer wall of the rotating disc 5 and the side of the batching pipe 521 away from the axis of the rotating disc 5. The upper end of the rotating shaft 61 is fixedly connected with a pressing block 62, and the lower end face of the pressing block 62 abuts against the upper end face of the rotating disc 5. The design of the rotating shaft 61 and the pressing block 62 enables the rotating disc 5 to maintain good balance and stability during rotation, thereby avoiding batching errors caused by shaking. The supporting ring 7 further enhances the overall rigidity of the structure, prevents the rotating disc 5 from deforming under rotation or heavy load, and ensures the long-term operation reliability of the equipment.

[0046] The implementation principle of the embodiment of the application is that the recycled concrete high-precision aggregate batching equipment can realize precise control of the entry and exit of the aggregate and ensure the consistency of the weight of each batch of aggregate. The switch device 4 is used to control the opening and closing of the discharge pipe 11. The plurality of weighing devices 51 on the rotating disc 5 enables accurate measurement of each batching, thereby improving the overall precision of the batching. The position design of the batching pipe 521 and the aggregate feeding pipe 31 ensures the smooth entry of the aggregate into the mixing tank 3, thereby reducing spilling and waste. The design of the cover plate 32 prevents the aggregate from being thrown out of the mixing tank 3 due to stirring of the mixing tank 3 during batching, thereby further improving the controllability of the batching process. The valve 522 is used to control the opening and closing of the batching pipe 521, and the cover 523 is used to block the lower end opening of the batching pipe 521, thereby preventing the aggregate remaining on the inner wall of the batching pipe 521 below the valve 522 from falling off during the rotation of the rotating disc 5, thereby reducing material waste and pollution risk. The overall equipment is automatically operated throughout the process, thereby improving the precision and stability of the recycled concrete aggregate batching, reducing human intervention, and improving production efficiency.

[0047] The above are preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A high-precision aggregate batching equipment for recycled concrete, comprising a stock bin (1), a support (2) and a mixing tank (3), the stock bin (1) is fixedly connected with the support (2), the stock bin (1) is located above the mixing tank (3), and the lower end of the stock bin (1) is provided with a discharge pipe (11), characterized in that: The lower end of the discharge pipe (11) is provided with a switch device (4), the lower side of the discharge pipe (11) is provided with a rotating disc (5) with an axis arranged along the vertical direction, the upper end surface of the rotating disc (5) is uniformly and fixedly provided with a plurality of weighing devices (51) along the circumference, the weighing device (51) is fixedly connected with a transfer tank (52), the lower side of the rotating disc (5) is provided with a driving device (53) for driving the rotating disc (5) to rotate, the lower end of the transfer tank (52) is provided with a batching pipe (521), the batching pipe (521) is provided with a valve (522), the upper end of the stirring tank (3) is provided with an aggregate feeding pipe (31), the lower end surface of the batching pipe (521) is in the same plane with the upper end surface of the aggregate feeding pipe (31), the upper end surface of the aggregate feeding pipe (31) is provided with a cover plate (32) rotatably connected with the stirring tank (3) along the vertical axis, the lower end of the batching pipe (521) is provided with a cover (523), and the cover (523) is used for controlling the discharge of the batching pipe (521).

2. The high-precision aggregate batching equipment for recycled concrete according to claim 1, characterized in that: The side wall of the cover plate (32) is uniformly provided with a plurality of upper and lower through sliding grooves (321) along the circumference, and the lower end of the batching pipe (521) is slidingly connected with the cover plate (32) in the sliding groove (321).

3. A high-precision aggregate batching apparatus for recycled concrete according to claim 2, characterized in that: The upper end surface of the stirring tank (3) is fixedly provided with a push cover cylinder (33), the telescopic end of the push cover cylinder (33) is fixedly connected with a push block (34), one end of the push block (34) away from the axis of the push cover cylinder (33) is slidingly connected with a multi-prism (35) along the vertical direction, the lower end surface of the multi-prism (35) is fixedly connected with a push rod (36), the upper end of the multi-prism (35) is fixedly connected with a positioning plate (351), the positioning plate (351) is located above the push block (34), the spring (37) is arranged between the upper end surface of the push rod (36) and the lower end surface of the push block (34), the spring (37) is arranged outside the multi-prism (35), and the side wall of the sliding groove (321) close to the multi-prism (35) is an inclined surface (322).

4. The high-precision aggregate batching apparatus for recycled concrete according to claim 1, characterized in that: The switch device (4) comprises a first gear (41), a second gear (42), a first external tooth block (43), a second external tooth block (44) and a baffle (45), the baffle (45) is fixedly connected to the lower end surface of the first gear (41), the first gear (41) and the second gear (42) are both rotatably connected with the support (2) along the vertical axis, the baffle (45) is provided with a through opening (451) penetrating upward and downward, the thickness of the first gear (41) is greater than that of the second gear (42), the upper part of the first gear (41) is engaged with the second gear (42), the lower part of the first gear (41) is engaged with the first external tooth block (43), the first external tooth block (43) is located below the second gear (42), the first external tooth block (43) is fixedly connected with the upper end surface of the rotating disc (5) coaxially, the second gear (42) is engaged with the second external tooth block (44), and the first external tooth block (43) and the second external tooth block (44) are fixedly connected coaxially.

5. A high-precision aggregate batching plant for recycled concrete according to claim 4, characterized in that: The support (2) is rotationally connected with two rotating rods (21), the upper end surfaces of the two rotating rods (21) are fixedly connected with limiting plates (22), the lower ends of the two rotating rods (21) are coaxially fixedly connected with the first gear (41) and the second gear (42) respectively, the lower end of the baffle (45) is provided with a supporting plate (23), the supporting plate (23) is fixedly connected with the support (2), the upper end surface of the supporting plate (23) abuts against the lower end surface of the baffle (45), and the baffle (45) is rotationally connected with the supporting plate (23) along the axis of the first gear (41).

6. The high-precision aggregate batching apparatus for recycled concrete according to claim 1, characterized in that: The lower end of the rotating disc (5) is provided with a fixed table (6), the rotating disc (5) is rotationally connected with the fixed table (6) along the axis thereof, the driving device (53) comprises an inner gear ring (531), a driving gear (532) and a driving motor (533), the inner gear ring (531) is coaxially fixedly connected to the lower end surface of the rotating disc (5), the inner gear ring (531) is in meshing connection with the driving gear (532), and the driving motor (533) is fixedly connected to the lower end surface of the fixed table (6) and is fixedly connected with the driving gear (532) through the rotating disc (5).

7. A high-precision aggregate batching plant for recycled concrete according to claim 6, characterized in that: The upper end surface of the fixed table (6) is coaxially fixedly connected with a rotating shaft (61), the upper end of the rotating shaft (61) penetrates through the rotating disc (5), the upper end of the rotating shaft (61) is fixedly connected with a pressing block (62), the lower end surface of the pressing block (62) abuts against the upper end surface of the rotating disc (5), the lower end of the rotating disc (5) is provided with a supporting ring (7), the upper end surface of the supporting ring (7) and the lower end surface of the fixed table (6) both abut against the lower end surface of the rotating disc (5), the upper end surface of the fixed table (6) is provided with a mounting groove (63), and the inner gear ring (531) and the driving gear (532) are both located in the mounting groove (63).

8. The high-precision aggregate batching plant for recycled concrete according to claim 1, characterized in that: The shaft spacing between the stirring tank (3) and the stock bin (1) is equal to the shaft spacing between two adjacent intermediate tanks (52).

Images