A recycled concrete batching and mixing all-in-one machine

Abstract

The utility model relates to mixing equipment technical field especially relates to a kind of recycled concrete batching and stirring integrated machine, including rack, feeding pipe B and weighing material guiding mechanism, setting stirring bucket on rack, the bottom of stirring bucket is set to discharge pipe group, and stirring mechanism is set in stirring bucket;Feeding pipe B is set on stirring bucket and is communicated with its inside, and the top of feeding pipe B is set with the flow guide box that it is connected, and the feeding hopper that is connected with its inside is set on flow guide box;Weighing material guiding mechanism is set in flow guide box, and weighing material guiding mechanism is intermittently in working condition Raw materials are weighed and introduced into stirring bucket by feeding pipe B.The utility model can automatically complete metering, weighing and discharging, and quantitative matching additive, at the same time, the configuration of independent drive of rotary metering bin and stirring mechanism is adopted, and the automatic accurate batching and high-efficiency forced stirring of recycled concrete material are realized in compact space integration.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to an integrated machine for batching and mixing recycled concrete. Background Technology

[0002] In the field of construction waste recycling, the preparation of recycled concrete is a crucial step. Currently, common production methods often employ station-based equipment, where aggregate weighing, powder weighing, and mixing are completed by independent equipment at different workstations. This results in problems such as large floor space requirements, high energy consumption during material handling, and poor process flow coordination.

[0003] While existing integrated mixing equipment integrates some functions, it still faces significant bottlenecks in practical applications: First, the strong vibrations generated by the mixing mechanism directly interfere with the stability of the precision weighing sensor, leading to a decrease in batching accuracy and seriously affecting the final strength and quality of concrete; Second, the degree of automation is insufficient, especially the feeding and weighing of recycled aggregates still require manual intervention or rely on rudimentary devices, resulting in low efficiency and difficulty in ensuring the consistency of the proportions.

[0004] Therefore, there is an urgent practical need to develop an integrated recycled concrete preparation device that can achieve high-precision automatic batching, efficient mixing, and easy process monitoring. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing an integrated machine for batching and mixing recycled concrete.

[0006] The technical solution of this utility model is: a recycled concrete batching and mixing machine, including a frame, a mixing drum set on the frame, a feeding pipe assembly set at the bottom of the mixing drum, and a mixing mechanism set inside the mixing drum; Feeding pipe B is installed on the mixing tank and communicates with its interior. A guide box is installed at the top of the feeding pipe B and communicates with its interior. A feed hopper is installed on the guide box and communicates with its interior. And a weighing and guiding mechanism, which is set inside the guide box. During operation, the weighing and guiding mechanism intermittently weighs the raw materials and introduces them into the mixing tank through the feeding pipe B.

[0007] Preferably, a transparent observation window is provided on the mixing tank, and an anti-stick coating is provided on the side of the transparent observation window inside the mixing tank.

[0008] Preferably, the feed pipe assembly includes a discharge pipe and a valve for controlling the opening and closing of its internal channels.

[0009] Preferably, the stirring mechanism includes a stirring shaft, scrapers, and a drive assembly A. The stirring shaft is located inside the stirring tank and is rotatably connected to it. Several supports are spaced apart on the stirring shaft. The scrapers include multiple scrapers and are respectively connected to the supports on the corresponding sides. The scrapers slide in contact with the inner wall of the stirring tank. The drive assembly A is mounted on the frame and drives the stirring shaft to rotate in the working state.

[0010] Preferably, two sets of spiral pusher plates are coaxially and symmetrically arranged on the stirring shaft, and V-shaped guide surfaces are provided on the scraper plates. When the stirring shaft is rotating, the V-shaped guide surfaces push the raw material in the middle part to both sides, and the spiral pusher plates on both sides push the raw material on both sides to the middle position.

[0011] Preferably, the bottom of the flow guide box is provided with a discharge hole communicating with its interior, and the feeding pipe B covers the outside of the discharge hole; the side wall of the flow guide box is provided with a feed hole communicating with its interior, and the feed hopper covers the outside of the feed hole.

[0012] Preferably, the weighing and guiding mechanism includes a cylinder, a weighing device, and a drive component B. A cylindrical cavity is provided inside the guide box, the cylinder is located inside the cylindrical cavity and fits against its inner wall, a receiving groove is provided on the arc surface of the cylinder, and the weighing device is located in the receiving groove; the drive component B is provided on the guide box, and the drive component B drives the cylinder to rotate in the working state.

[0013] Preferably, a feeding pipe A is provided on the mixing tank and communicates with its interior. A metering valve is provided on the feeding pipe A to monitor the total amount of fluid in the feeding pipe A and to control the opening and closing of its internal channels.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: Through integrated design, the problems in existing technologies are effectively solved, bringing the following benefits: First, it realizes automatic, continuous, and accurate weighing of recycled aggregates, and automatically matches the proportions of other materials based on this, significantly improving the level of production automation and proportioning accuracy; Second, through independent drive design, the influence of mixing vibration on the weighing process is completely isolated, ensuring the stability of core process links; Third, the unique composite mixing structure can form efficient three-dimensional logistics, significantly improving the mixing uniformity and mixing efficiency of recycled concrete; Fourth, the design of the anti-stick observation window ensures process visibility, facilitating operation monitoring and quality control; Fifth, the overall structure is compact, highly integrating batching, weighing, and mixing functions, reducing floor space and material transfer, and lowering energy consumption and operating costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the stirring mechanism; Figure 3 This is a schematic diagram of the connection structure of the various components on the feeding pipe B.

[0016] Reference numerals: 1. Frame; 2. Mixing tank; 201. Transparent observation window; 3. Discharge pipe; 4. Valve; 5. Mixing mechanism; 51. Mixing shaft; 52. Scraper; 521. V-shaped guide surface; 53. Spiral pusher plate; 54. Reducer; 55. Servo motor A; 6. Feeding pipe A; 7. Metering valve; 8. Feeding pipe B; 9. Guide box; 10. Feed hopper; 11. Cylinder; 111. Receiving groove; 12. Weighing device; 13. Servo motor B. Detailed Implementation

[0017] Example 1, as Figures 1-3 As shown, this utility model proposes a recycled concrete batching and mixing integrated machine, including a frame 1, a feeding pipe B8, and a weighing and guiding mechanism. A mixing tank 2 is mounted on the frame 1, and a discharge pipe assembly is installed at the bottom of the mixing tank 2. The discharge pipe assembly includes a discharge pipe 3 and a valve 4 for controlling the opening and closing of its internal channels. The valve 4 can be an electric gate valve or other types, selected according to actual needs. A mixing mechanism 5 is installed inside the mixing tank 2. The mixing mechanism 5 includes a mixing shaft 51, scrapers 52, and a drive assembly A. The mixing shaft 51 is located inside the mixing tank 2 and rotatably connected to it. Several supports are spaced apart on the mixing shaft 51. The scrapers 52 include multiple components and are respectively connected to the supports on the corresponding sides. The scrapers 52 slide in contact with the inner wall of the mixing tank 2. Two sets of spiral pusher plates 53 are coaxially and symmetrically arranged on the stirring shaft 51. A V-shaped guide surface 521 is provided on the scraper 52. When the stirring shaft 51 rotates, the V-shaped guide surface 521 pushes the raw material in the middle to both sides, and the spiral pusher plates 53 on both sides push the raw material from both sides towards the middle position. The drive assembly A includes, but is not limited to, a reducer 54 and a servo motor A55. Both the reducer 54 and the servo motor A55 are mounted on the frame 1. The output end of the reducer 54 is connected to the stirring shaft 51 via coupling A, and the output end of the servo motor A55 is connected to the input end of the reducer 54 via coupling B. The drive assembly A drives the stirring shaft 51 to rotate during operation. A transparent observation window 201 is provided on the stirring tank 2. An anti-stick coating is provided on one side of the transparent observation window 201 inside the stirring tank 2. The anti-stick coating is selected from wear-resistant industrial-grade products suitable for glass substrates; specific options include, but are not limited to, glass-ceramic-like non-stick coatings.

[0018] A feeding pipe B8 is installed on and communicates with the interior of the mixing tank 2. A guide box 9, which is connected to the top of the feeding pipe B8, is installed on the guide box 9 and communicates with its interior. A discharge hole, which communicates with the interior of the guide box 9, is located at the bottom of the guide box 9, and the feeding pipe B8 covers the outside of the discharge hole. A feed hole, which communicates with the interior of the guide box 9, is located on the side wall of the guide box 9, and the feed hopper 10 covers the outside of the feed hole.

[0019] The weighing and guiding mechanism is located inside the guide box 9. The mechanism includes a cylinder 11, a weighing device 12, and a drive assembly B. A cylindrical cavity is provided inside the guide box 9, with the cylinder 11 located within and fitted against its inner wall. A receiving groove 111 is provided on the arc surface of the cylinder 11. The weighing device 12 is located within the receiving groove 111 and includes a weighing sensor mounted on the bottom surface of the receiving groove 111 and a carrier plate. The outer edge of the carrier plate is fitted against the inner wall of the receiving groove 111, and the bottom surface of the carrier plate is in contact with the detection end of the weighing sensor. The drive assembly B includes, but is not limited to, a servo motor B13. The body of the servo motor B13 is mounted on the guide box 9, and the output end of the servo motor B13 is connected to the mounting shaft of the cylinder 11 via a coupling C. In operation, the drive assembly B drives the cylinder 11 to rotate. During operation, the weighing and guiding mechanism intermittently weighs the raw materials and guides them into the mixing tank 2 through the feeding pipe B8.

[0020] In this embodiment, the first stage is precise weighing and material guiding. After the equipment is started, recycled aggregates and other raw materials are fed into the guide box 9 from the feed hopper 10. At this time, the servo motor B13 drives the cylinder 11 to rotate intermittently within the cylindrical cavity of the guide box 9. When a receiving groove 111 on the arc surface of the cylinder 11 rotates to below the discharge port of the feed hopper 10, the raw material falls onto the carrier plate in the receiving groove 111. When the cylinder 11 rotates to the point where the opening of the receiving groove 111 faces upward, the weighing sensor at the bottom of the carrier plate immediately performs precise weighing of the falling raw material and transmits the weight signal to the control system. After weighing is completed, the servo motor B13 drives the cylinder 11 to continue rotating, rotating the weighed receiving groove 111 to above the discharge port at the bottom of the guide box 9. Under the action of gravity, the raw material in the receiving groove 111 falls into the mixing tank 2 below through the feeding pipe B8. The cylinder 11 rotates continuously, enabling cyclical receiving, weighing, and unloading operations, thus completing the metering and conveying of all batches of raw materials. Based on the initial weighing of the raw materials, the control system automatically calculates and controls the amount of cement, water, and admixtures added, achieving automated and precise proportioning.

[0021] Secondly, there is the efficient mixing stage. After all raw materials are added to the mixing tank 2 according to the specified ratio, the drive component A starts working. The servo motor A55 drives the mixing shaft 51 to rotate through the reducer 54 and coupling A. The scraper 52 mounted on the mixing shaft 51 rotates accordingly, and its edge slides in contact with the inner wall of the mixing tank 2, effectively scraping off the material adhering to the inner wall, preventing scaling and ensuring that all materials participate in the mixing. At the same time, two sets of spiral pusher plates 53 symmetrically arranged on the mixing shaft 51 rotate synchronously. During the mixing process, the unique V-shaped guide surface 521 on the scraper 52 pushes the raw materials located in the middle of the mixing tank 2 radially to both sides, while the spiral pusher plates 53 on both sides push the raw materials axially from both sides to the middle. This three-dimensional composite motion of "from the middle to both sides, and from both sides to the middle" creates strong convection, shearing and diffusion effects in the mixing tank 2, enabling the recycled aggregate, cement, water and other components to reach a highly uniform mixing state in a short time. Operators can observe the internal mixing process in real time through the transparent observation window 201 set on the mixing tank 2. The anti-stick coating on its inner surface can effectively reduce the adhesion of concrete slurry and maintain a clear field of vision.

[0022] Finally, there is the unloading stage. Once the mixing time has reached the predetermined limit, the uniformly mixed recycled concrete is ready. At this point, the control system issues a command to stop component A. The operator or the automatic control system then opens valve 4 on the discharge pipe assembly, allowing the mixed concrete to be smoothly discharged from discharge pipe 3 under gravity, ready for subsequent transportation or construction, thus completing a full work cycle.

[0023] Example 2, as Figure 1 As shown, the present invention proposes a recycled concrete batching and mixing integrated machine. Compared with the first embodiment, the mixing tank 2 is provided with a feeding pipe A6 that communicates with its interior. The feeding pipe A6 is provided with a metering valve 7 for monitoring the total amount of fluid in the feeding pipe A6 and controlling the opening and closing of its internal channels. The metering valve 7 is a two-in-one assembly structure, including an electromagnetic flow meter and a solenoid valve.

[0024] In this embodiment, water-based agents, especially viscous gelling materials and water-reducing agents, are added to the mixing tank 2 using the feeding pipe A6, while the feeding pipe B8 is only used for adding dry materials. This separation of wet and dry materials effectively prevents viscous substances from remaining on the surface of the weighing pan 12 and the inner wall of the receiving groove 111, thereby improving the measurement accuracy of the weighing device 12 in this device.

[0025] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A recycled concrete batching and mixing integrated machine, characterized in that, include: A frame (1) is provided with a mixing tank (2), a feeding pipe assembly is provided at the bottom of the mixing tank (2), and a mixing mechanism (5) is provided inside the mixing tank (2). Feeding pipe B (8) is set on the mixing tank (2) and connected to its interior. A guide box (9) is set at the top of the feeding pipe B (8) and connected to it. A feed hopper (10) is set on the guide box (9) and connected to its interior. And a weighing and guiding mechanism, which is set in the guide box (9). The weighing and guiding mechanism intermittently weighs the raw materials and introduces them into the mixing tank (2) through the feeding pipe B (8) during operation.

2. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, A transparent observation window (201) is provided on the mixing tank (2), and an anti-stick coating is provided on the side of the transparent observation window (201) inside the mixing tank (2).

3. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, The feed pipe assembly includes a discharge pipe (3) and a valve (4) for controlling the opening and closing of its internal channels.

4. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, The stirring mechanism (5) includes a stirring shaft (51), a scraper (52) and a drive assembly A. The stirring shaft (51) is located inside the stirring tank (2) and is rotatably connected to it. Several supports are spaced apart on the stirring shaft (51). The scraper (52) includes multiple supports and is connected to the supports on the corresponding side respectively. The scraper (52) slides in contact with the inner wall of the stirring tank (2). The drive assembly A is mounted on the frame (1). The drive assembly A drives the stirring shaft (51) to rotate in the working state.

5. The integrated batching and mixing machine for recycled concrete according to claim 4, characterized in that, Two sets of spiral push plates (53) are coaxially and symmetrically arranged on the stirring shaft (51), and a V-shaped guide surface (521) is provided on the scraper (52). When the stirring shaft (51) is rotating, the V-shaped guide surface (521) pushes the raw material in the middle part to both sides, and pushes the raw material on both sides to the middle position through the spiral push plates (53) on both sides.

6. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, The bottom of the guide box (9) is provided with a discharge hole that communicates with its interior, and the feeding pipe B (8) covers the outside of the discharge hole; the side wall of the guide box (9) is provided with a feed hole that communicates with its interior, and the feed hopper (10) covers the outside of the feed hole.

7. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, The weighing and guiding mechanism includes a cylinder (11), a weighing device (12), and a drive assembly B. A cylindrical cavity is provided inside the guide box (9), and the cylinder (11) is located inside the cylindrical cavity and fits against its inner wall. A receiving groove (111) is provided on the arc surface of the cylinder (11), and the weighing device (12) is located inside the receiving groove (111). The drive assembly B is set on the guide box (9), and the drive assembly B drives the cylinder (11) to rotate in the working state.

8. The integrated batching and mixing machine for recycled concrete according to claim 1, characterized in that, A feeding pipe A (6) is installed on the mixing tank (2) and connected to its interior. A metering valve (7) is installed on the feeding pipe A (6) to monitor the total amount of fluid in the feeding pipe A (6) and to control the opening and closing of its internal channels.

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