A recycled plastic concrete batching plant
By introducing a quantitative discharge cylinder, a vibrating motor, and a vent pipe into the concrete batching machine, the problem of dust pollution was solved, and the closed conveying and quantitative discharge of concrete raw materials were realized, thereby improving production safety and concrete quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGTAI GREEN BUILDING MATERIALS TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
The existing design of the concrete batching machine's inlet and outlet leads to serious dust pollution, affecting workers' health.
A silo structure with a metering discharge cylinder, a vibrating motor, and a vent pipe was designed. Combined with a flap and elastic support components, it ensures the closed conveying of concrete raw materials in the silo, prevents dust from spreading, and achieves metered discharge through a double spiral auger.
It effectively prevents dust from spreading, protects workers' health, and ensures the quantitative and stable delivery of concrete raw materials, thereby improving concrete quality.
Smart Images
Figure CN224527592U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of concrete processing technology, specifically relating to a recycled plastic concrete batching machine. Background Technology
[0002] Concrete batching machines are used to accurately measure raw materials such as sand, stone, and cement. They consist of storage hoppers, weighing systems, and conveying devices. They automatically feed, weigh, and mix materials according to a set ratio, ensuring stable concrete quality, improving production efficiency, and are widely used in commercial concrete plants and construction sites.
[0003] Existing concrete batching machines typically have open inlet and outlet designs. During feeding and discharging, the movement of raw materials generates significant amounts of dust, which is then dispersed into the air, polluting the air and seriously impacting the health and safety of production line workers. Therefore, a new type of recycled plastic concrete batching machine is needed. Utility Model Content
[0004] To address the aforementioned problems, this utility model discloses a recycled plastic concrete batching machine.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A recycled plastic concrete batching machine includes several linearly arranged hoppers. Each hopper has a horizontally axially mounted metering discharge cylinder at its outlet. A first drive motor, with its output end coaxially connected to the metering discharge cylinder, is fixedly mounted on the outer wall of each hopper. Each hopper has a vent pipe at its top, with the other end connected to its bottom and below the metering discharge cylinder. A vibration motor is mounted on the outer wall of each hopper. A conveying cylinder is connected to the bottom of all the hoppers. A double-spiral auger is rotatably mounted inside the conveying cylinder. A second drive motor, with its output end coaxially connected to the shaft of the double-spiral auger, is mounted at one end of the conveying cylinder. At least one branch pipe with a one-way air inlet valve extends upward from the top of the conveying cylinder. Two overlapping flaps are rotatably mounted inside the top cavity of each hopper. At least one set of elastic support components for lifting the flaps is mounted below each flap, and at least one damping rod for lifting the flaps is mounted below each flap.
[0006] As a preferred embodiment of this utility model, the inner wall of the hopper extends a limiting strip to restrict the upward rotation of the horizontal flap.
[0007] As a preferred technical solution of this utility model, each set of elastic support components includes two fixed seats extending from the inner wall of the hopper. The two fixed seats are rotatably connected to a rotating plate. A roller is rotatably installed on the free end of the rotating plate, and the roller is always in rolling contact with the flip plate. A spring sheet is fixedly attached to one side of the rotating plate, and the other end of the spring sheet is fixedly attached to the inner wall of the hopper.
[0008] As a preferred technical solution of this utility model, when the flip plate is horizontal, the bending angle of the spring is an acute angle.
[0009] As a preferred technical solution of this utility model, when the flip plate is horizontal, the bending angle of the spring is an obtuse angle.
[0010] As a preferred technical solution of this utility model, at the connection between the vent pipe and the hopper, the vent pipe is inclined upward from the hopper.
[0011] As a preferred technical solution of this utility model, the double helical auger is provided with two blades with opposite helical directions, and the junction of the two blades is located above the discharge vertical pipe of the conveying cylinder.
[0012] As a preferred technical solution of this utility model, the quantitative discharge cylinder is provided with a number of annularly distributed cavities of the same capacity.
[0013] As a preferred embodiment of this utility model, within the same hopper, the damping of the damping rod that lifts the lower flap is greater than the damping of the damping rod that lifts the upper flap.
[0014] The beneficial effects of this utility model are as follows: 1. Each silo in this application is equipped with a concrete raw material driven opening and closing mechanism at the top to prevent a large amount of dust generated by the material falling into the silo cavity from being sprayed out. At the same time, the concrete raw material runs in the closed shell during the batching and conveying process and will not spray dust to the outside, thus protecting the life and health of production line workers. Second, this application is equipped with a vent pipe and a vibrating motor that work together to ensure that even if the silo stores powdery raw materials, they can fall stably under the cooperation of the two. At the same time, it helps to fill the cavity at the top of the metering discharge cylinder, ensuring the accuracy of the metering of concrete raw materials and the stable performance of the produced concrete. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure from another angle of an embodiment of the present invention; Figure 3 This is a partial cross-sectional view of the hopper, vent pipe, first drive motor, quantitative discharge cylinder, flap, limit bar and damping rod of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the flap, limiting strip, and elastic support assembly in an embodiment of the present utility model; Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial cross-sectional view of the conveyor cylinder, the double spiral auger, and the second drive motor in an embodiment of this utility model.
[0016] List of identifiers in attached diagrams: 1. Hopper; 2. Ventilation pipe; 3. First drive motor; 4. Metering discharge cylinder; 5. Flip plate; 6. Limit bar; 7. Elastic support assembly; 701. Rotating plate; 702. Fixed base; 703. Roller; 704. Spring sheet; 8. Conveying cylinder; 9. Double spiral auger; 10. Second drive motor; 11. One-way air inlet valve; 12. Vibration motor; 13. Damping rod. Detailed Implementation
[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0018] Please see Figure 1-6 A recycled plastic concrete batching machine includes several linearly arranged hoppers 1. Each hopper 1 has a horizontally mounted metering discharge cylinder 4 at its outlet. A first drive motor 3, with its output end coaxially connected to the metering discharge cylinder 4, is fixedly mounted on the outer wall of each hopper 1. Each hopper 1 has a vent pipe 2 connected to its top and bottom, extending below the metering discharge cylinder 4. At the connection between the vent pipe 2 and the hopper 1, the vent pipe 2 slopes upwards from the hopper 1 to prevent concrete material from flowing into it. A vibration motor 12 is installed on the outer wall of each hopper 1. When storing powdered material in the hopper 1, the powder must not cover the opening of the vent pipe 2. Since the powdered material is difficult to fall within the relatively sealed hopper 1, the vent pipe 2 circulates air from the bottom of the hopper 1 back to its top, and simultaneously, the vibration motor 12 is activated to ensure a continuous and stable fall of the powdered material within the hopper 1. Several hoppers 1 are connected at their bottoms to a conveyor cylinder 8, and a double helical auger 9 is rotatably mounted inside the conveyor cylinder 8. A second drive motor 10 is mounted at one end of the conveyor cylinder 8, with its output end coaxially and fixedly connected to the rotating shaft of the double helical auger 9. At least one branch pipe with a one-way air inlet valve 11 extends upward from the top of the conveyor cylinder 8. The one-way air inlet valve 11 can supply air into the inner cavity of the conveyor cylinder 8 when the powdery raw material falls inside, thereby reducing the obstruction of the falling powdery raw material.
[0019] Each hopper 1 has two horizontally overlapping flaps 5 rotatably mounted in its top inner cavity. Each flap 5 has at least one set of elastic support components 7 for lifting it, and at least one damping rod 13 for lifting it. The two ends of the damping rod 13 are rotatably connected to the flaps 5 and the hopper 1, respectively. Within the same hopper 1, the damping of the damping rod 13 lifting the lower flap 5 is greater than that lifting the upper flap 5, ensuring that the lower flap 5 rotates back to its horizontal position less rapidly after flipping downwards. This ensures that the upper flap 5 returns to its horizontal position first, resulting in the two flaps 5 overlapping horizontally after returning to their horizontal positions. A limiting strip 6 extends from the inner wall of the hopper 1 to restrict the upward rotation of the horizontally positioned flaps 5. The flaps 5 can only be flipped downwards to open the top opening of the hopper 1.
[0020] Each set of elastic support components 7 includes two fixed seats 702 extending from the inner wall of the hopper 1, and the two fixed seats 702 are rotatably connected to a rotating plate 701. A roller 703 is rotatably mounted on the free end of the rotating plate 701, and the roller 703 is always in rolling contact with the flap 5. A spring piece 704 is fixedly attached to one side of the rotating plate 701, and the other end of the spring piece 704 is fixedly attached to the inner wall of the hopper 1. When the flap 5 is horizontal, the elastic force of the spring piece 704 just causes the elastic support component 7 to lift the flap 5.
[0021] Example 1: When the flap 5 is horizontal, the bending angle of the spring piece 704 is acute. At this time, the spring piece 704 is set above the fixed seat 702, which is not shown in the attached figure.
[0022] Example 2: When the flap 5 is horizontal, the bending angle of the spring piece 704 is an obtuse angle, as shown in the attached example.
[0023] The double-helix auger 9 has two sections of blades with opposite spiral directions, and the junction of the two sections of blades is located above the discharge vertical pipe of the conveying cylinder 8. When the double-helix auger 9 rotates, it transports the concrete material flowing into both ends of the conveying cylinder 8 to the junction of its two sections of blades, causing the concrete material to fall into the discharge vertical pipe of the conveying cylinder 8. The discharge vertical pipe of the conveying cylinder 8 is connected to the concrete mixing device.
[0024] The metering discharge cylinder 4 is provided with several annularly distributed cavities of the same capacity. When the first drive motor 3 drives the metering discharge cylinder 4 to rotate meteringly, the metering discharge cylinder 4 can release concrete raw materials from several cavities into the material bin 1, thereby achieving metered discharge.
[0025] Working principle: In use, solid concrete material is added to the top opening of each hopper 1 (mainly placed at the overlap of the two flaps 5). Under the pressure of the concrete material, the two overlapping and horizontal flaps 5 at the top of the hopper 1 flip downwards and separate. At this time, the spring 704 undergoes elastic deformation (the damping rod 13 is compressed), thereby opening the top opening of the hopper 1 and allowing the concrete material to fall into the inner cavity of the hopper 1. After the concrete material on the upper surface of the flap 5 has completely fallen into the inner cavity of the hopper 1, the spring 704 returns to its initial shape, causing the flap 5 to return to the horizontal position. The top opening of the hopper 1 closes relatively quickly under the restriction of the damping rod 13, preventing a large amount of dust generated by the falling material from being sprayed out of the inner cavity of the hopper 1. At the same time, it allows sufficient time for the concrete material on the upper surface of the flap 5 to completely slide into the inner cavity of the hopper 1. When the recycled plastic concrete batching machine is batching, the first drive motor 3 drives the quantitative discharge cylinder 4 to rotate quantitatively. The quantitative discharge cylinder 4 can release concrete raw materials from several cavities out of the hopper 1, thereby achieving quantitative discharge. At the same time, the vibration motor 12 starts, so that the concrete raw materials fall stably in the discharge hopper 1, which also helps to fill the cavity at the top of the quantitative discharge cylinder 4. When the hopper 1 stores powdery raw materials, the vent pipe 2 is set to circulate the air at the bottom of the hopper 1 back to its top. The vent pipe 2 also works with the vibration motor 12 to make the powdery raw materials in the hopper 1 fall steadily. After the concrete raw materials flowing out of several hoppers 1 enter the conveying cylinder 8, the second drive motor 10 drives the double spiral auger 9 to rotate, which transports the concrete raw materials flowing into both ends of the conveying cylinder 8 to the junction of its two blades, so that the concrete raw materials fall into the discharge vertical pipe of the conveying cylinder 8 and fall to the concrete mixing device. Recycled plastic concrete is a lightweight concrete that uses recycled plastic particles as aggregate. It requires precise control of the proportion of recycled plastic particles in the concrete raw materials to ensure the stable performance of the produced lightweight concrete. This application is applicable to the production of recycled plastic concrete.
[0026] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.
Claims
1. A recycled plastic concrete batching machine, comprising a plurality of linearly arranged hoppers (1), characterized in that, Each of the hoppers (1) has a horizontally axially mounted metering discharge cylinder (4) at its outlet. Each hopper (1) has a first drive motor (3) whose output end is coaxially and fixedly connected to the metering discharge cylinder (4) on its outer wall. Each hopper (1) has a vent pipe (2) at its top connected to its bottom and below the metering discharge cylinder (4). Each hopper (1) has a vibration motor (12) mounted on its outer wall. Several hoppers (1) are connected to a common conveying cylinder (8) at their bottom. A double spiral winch is rotatably mounted inside the conveying cylinder (8). The conveying cylinder (8) has a second drive motor (10) at one end, whose output end is coaxially fixedly connected to the shaft of the double spiral auger (9). The top of the conveying cylinder (8) extends upward at least one branch pipe with a one-way air inlet valve (11) installed. The top inner cavity of each hopper (1) is rotatably installed with two overlapping flaps (5) with free ends. Each flap (5) is installed with at least one set of elastic support components (7) for lifting the flap (5) below it, and each flap (5) is installed with at least one damping rod (13) for lifting the flap (5) below it.
2. The recycled plastic concrete batching machine according to claim 1, characterized in that, The inner wall of the hopper (1) extends a limiting strip (6) that restricts the upward rotation of the horizontal flap (5).
3. The recycled plastic concrete batching machine according to claim 1, characterized in that, Each set of elastic support components (7) includes two fixed seats (702) extending from the inner wall of the hopper (1). The two fixed seats (702) are rotatably connected to a rotating plate (701). A roller (703) is rotatably installed on the free end of the rotating plate (701), and the roller (703) is always in rolling contact with the flip plate (5). A spring piece (704) is fixedly attached to one side of the rotating plate (701), and the other end of the spring piece (704) is fixedly attached to the inner wall of the hopper (1).
4. A recycled plastic concrete batching machine according to claim 3, characterized in that, When the flap (5) is horizontal, the bending angle of the spring (704) is acute.
5. A recycled plastic concrete batching machine according to claim 3, characterized in that, When the flap (5) is horizontal, the bending angle of the spring (704) is obtuse.
6. A recycled plastic concrete batching machine according to claim 1, characterized in that, At the connection between the vent pipe (2) and the silo (1), the vent pipe (2) is inclined upward from the silo (1).
7. A recycled plastic concrete batching machine according to claim 1, characterized in that, The double-helix auger (9) is provided with two blades with opposite helical directions, and the junction of the two blades is located above the discharge vertical pipe of the conveying cylinder (8).
8. A recycled plastic concrete batching machine according to claim 1, characterized in that, The quantitative discharge cylinder (4) is provided with several annularly distributed cavities of the same capacity.
9. A recycled plastic concrete batching machine according to claim 1, characterized in that, Within the same silo (1), the damping of the damping rod (13) that lifts the lower flap (5) is greater than the damping of the damping rod (13) that lifts the upper flap (5).